/* ==========================================================================
   Illumilib Memorizer - Custom CSS System
   IllumiLib Scholarly Brand with Parchment, Gold, and Serif Typography
   ========================================================================== */

:root {
    /* --- THEME LIGHT: Scholarly Parchment & Dark Oak --- */
    --bg-app: #f4edd9;          /* Antique parchment base */
    --bg-card: #fefcf7;         /* High-contrast page white */
    --bg-sidebar: #19120e;      /* Deep oak bookshelf wood */
    --bg-sidebar-card: #241b15; /* Warm dark wood card */
    --bg-input: #f8f4e8;        /* Soft warm inputs */
    --border-color: #e6dac6;    /* Subtle book page gilding */
    --border-color-dark: #33261f;
    --text-main: #2b1d14;       /* Deep mahogany-ink black */
    --text-muted: #7a685b;      /* Faded copperplate brown */
    --text-light: #fefcf7;      /* Clean paper text */
    --text-light-muted: #9c897c;
    --accent-gold: #c6944e;     /* Gold seal marker */
    --accent-gold-hover: #b07f3c;
    --accent-gold-light: #faf3e5;
    
    /* Semantic highlighting for speech alignment */
    --color-correct: #1b5e20;
    --bg-correct: #e8f5e9;
    --border-correct: #c8e6c9;
    
    --color-incorrect: #b71c1c;
    --bg-incorrect: #ffebee;
    --border-incorrect: #ffcdd2;
    
    --color-substituted: #e65100;
    --bg-substituted: #fff3e0;
    --border-substituted: #ffe0b2;

    /* Fonts */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-reading: 'Lora', Georgia, serif;
    --font-ui: 'Inter', system-ui, -apple-system, sans-serif;

    /* Shadow layers */
    --shadow-sm: 0 2px 5px rgba(25, 18, 14, 0.04);
    --shadow-md: 0 10px 20px rgba(25, 18, 14, 0.06);
    --shadow-lg: 0 20px 40px rgba(25, 18, 14, 0.1);
    --border-radius: 4px; /* Sharp corners for bookish journal style */

    /* "Done" green and "not yet" yellow for status circles and the sync check (spec M8) */
    --status-done: #3a9d4f;
    --status-progress: #d9a520;

    --font-scale: 1.0;
}

[data-theme="dark"] {
    /* --- THEME DARK: Charcoal Scholar & Burnished Gold --- */
    --bg-app: #121415;          /* Obsidian study base */
    --bg-card: #1a1c1e;         /* Warm slate card */
    --bg-sidebar: #0b0c0d;      /* Flat charcoal */
    --bg-sidebar-card: #151719; 
    --bg-input: #232528;
    --border-color: #2b2e31;
    --border-color-dark: #191b1c;
    --text-main: #e6e8ea;       /* Warm silver text */
    --text-muted: #8b9298;      /* Aged iron dust */
    --text-light: #e6e8ea;
    --text-light-muted: #8b9298;
    --accent-gold: #d4af37;     /* Burnished gold leaf */
    --accent-gold-hover: #e5c158;
    --accent-gold-light: #2d2a1c;

    /* Semantic highlighting (Dark contrast optimized) */
    --color-correct: #81c784;
    --bg-correct: #1b2e21;
    --border-correct: #254d2e;

    --color-incorrect: #e57373;
    --bg-incorrect: #3d1d1d;
    --border-incorrect: #612c2c;

    --color-substituted: #ffb74d;
    --bg-substituted: #3d2a18;
    --border-substituted: #5e3f20;

    --status-done: #5cbf6e;
    --status-progress: #e0b938;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 10px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.45);
}

/* ==========================================================================
   Reset & Layout System
   ========================================================================== */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-app);
    color: var(--text-main);
    font-family: var(--font-ui);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* Custom scrollbars for a premium library book feel */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-app);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-gold);
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
    position: relative;
}

/* ==========================================================================
   SPA Page/View Containers
   ========================================================================== */

.view-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
    background-color: var(--bg-app);
    overflow-x: hidden;
    animation: fadeIn 0.3s ease;
}

.view-header {
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-card);
    transition: background-color 0.4s ease, border-color 0.4s ease;
    z-index: 10;
}

.header-back {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-icon {
    font-size: 1.5rem;
    color: var(--accent-gold);
    line-height: 1;
}

.brand-logo {
    height: 40px;
    width: 40px;
    object-fit: contain;
    margin-right: 0.25rem;
}

.brand-text-container {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--text-main);
}

.brand-subtitle {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.view-content {
    flex: 1;
    overflow-y: auto;
    padding: 2.5rem 2.5rem 4rem;
    width: 100%;
}

/* ==========================================================================
   Sign-in Page
   ========================================================================== */

.signin-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.signin-card {
    width: 100%;
    max-width: 380px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.signin-logo {
    height: 64px;
    width: 64px;
    object-fit: contain;
}

.signin-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--text-main);
}

.signin-text {
    font-family: var(--font-reading);
    color: var(--text-muted);
}

.signin-error {
    font-size: 0.85rem;
    color: var(--color-incorrect);
}

/* ==========================================================================
   Scribere Menu (Home) Page
   ========================================================================== */

.home-menu {
    max-width: 560px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.home-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    width: 100%;
    min-height: 92px;
    padding: 1.25rem 1.5rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    color: var(--text-main);
    text-align: left;
    cursor: pointer;
    transition: border-color 0.25s ease, background-color 0.25s ease, transform 0.25s ease;
}

.home-card:hover:not(:disabled) {
    border-color: var(--accent-gold);
    background-color: var(--accent-gold-light);
    transform: translateY(-1px);
}

.home-card:disabled {
    cursor: default;
    opacity: 0.55;
}

.home-card-icon {
    flex-shrink: 0;
    color: var(--accent-gold);
}

.home-card-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.home-card-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
}

.home-card-subtitle {
    font-family: var(--font-reading);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.home-card-chevron {
    flex-shrink: 0;
    color: var(--text-muted);
}

/* ==========================================================================
   Library Page Layout
   ========================================================================== */

.library-page-content {
    padding: 1.5rem 2.5rem 3rem;
}

.library-list-container {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ==========================================================================
   Edit / Add Text Page Layout
   ========================================================================== */

.edit-page-content {
    padding: 2.5rem 2.5rem 5rem;
    display: flex;
    justify-content: center;
}

.edit-form-card {
    width: 100%;
    max-width: 720px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 2.5rem;
    animation: fadeIn 0.25s ease;
}

.edit-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.edit-textarea {
    height: 280px !important;
    resize: vertical !important;
    font-family: var(--font-reading) !important;
    font-size: 0.95rem !important;
    line-height: 1.65 !important;
}

.label-optional {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-muted);
    text-transform: none;
    letter-spacing: 0;
}

.size-val-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-gold-light);
    color: var(--accent-gold);
    border: 1px solid var(--accent-gold);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.1rem 0.55rem;
    min-width: 28px;
}

.edit-actions-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.edit-left-group {
    display: flex;
    gap: 0.75rem;
}

.edit-save-group {
    display: flex;
    gap: 0.75rem;
}

.form-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 1.75rem;
    transition: background-color 0.4s ease, border-color 0.4s ease;
}

.form-card-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--accent-gold);
    margin-bottom: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.form-help-text {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    line-height: 1.45;
    font-style: italic;
}


.category-new-input {
    display: none;
    margin-top: 0.5rem;
}

input[type="text"],
select,
textarea {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    transition: all 0.25s ease;
}

input[type="text"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 2px rgba(198, 148, 78, 0.15);
}

textarea {
    height: 150px;
    resize: none;
    line-height: 1.5;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    padding: 0.6rem 0.75rem;
    border-radius: var(--border-radius);
    height: 38px;
}

.slider-container input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-color);
    height: 4px;
    border-radius: 2px;
    outline: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-gold);
    cursor: pointer;
    transition: background 0.2s;
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--text-main);
}

#split-size-val {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-gold);
    min-width: 10px;
}

.form-actions-row {
    display: flex;
    gap: 0.5rem;
    width: 100%;
}

.form-actions-row button {
    flex: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    height: 38px;
}

.btn-primary {
    background-color: var(--accent-gold);
    color: #19120e; /* Dark Oak text for contrast */
    font-weight: 600;
}

.btn-primary:hover {
    background-color: var(--accent-gold-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}

.btn-secondary:hover {
    border-color: var(--accent-gold);
    color: var(--text-main);
    background-color: var(--accent-gold-light);
}

.btn-danger {
    background-color: transparent;
    border: 1px solid var(--color-incorrect);
    color: var(--color-incorrect);
}

.btn-danger:hover {
    border-color: var(--color-incorrect);
    color: var(--text-light);
    background-color: var(--color-incorrect);
}

.btn-sm {
    padding: 0.5rem 0.8rem;
    font-size: 0.8rem;
    height: 32px;
}

/* ==========================================================================
   Library List & Search / Sort styling
   ========================================================================== */

.list-controls-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
    transition: background-color 0.4s ease, border-color 0.4s ease;
}

.search-sort-row {
    display: flex;
    gap: 1rem;
    align-items: center;
    width: 100%;
}

.search-wrapper {
    position: relative;
    flex: 1;
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.search-wrapper input[type="text"] {
    padding-left: 2.25rem;
    height: 38px;
}

.sort-select {
    max-width: 200px;
    height: 38px;
    padding: 0 2rem 0 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='%237a685b'><path d='M0 3l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
}

.sort-select:hover {
    border-color: var(--accent-gold);
    color: var(--text-main);
}

.library-list-items {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    align-items: flex-start;
}

.library-column {
    flex: 0 0 auto;
    width: 280px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-card);
}

/* ---- Category Group Header ---- */
.library-category-header {
    grid-column: 1 / -1;
    padding: 0.75rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    background-color: transparent;
    border-bottom: 2px solid var(--border-color);
    user-select: none;
    margin-top: 0.5rem;
}

/* ---- Library Card Grid ---- */
.library-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.6rem 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    cursor: pointer;
    transition: all 0.15s ease;
    box-shadow: var(--shadow-sm);
    min-height: auto;
    position: relative;
}

.library-card:hover {
    background-color: var(--accent-gold-light);
    box-shadow: var(--shadow-md);
}

.library-card.active {
    background-color: var(--accent-gold-light);
    border-color: var(--accent-gold);
    border-width: 2px;
}

.library-card[draggable="true"] {
    cursor: grab;
    user-select: none;
}

.library-card[draggable="true"]:active {
    cursor: grabbing;
}

.library-card.dragging {
    opacity: 0.35;
}

.card-drag-handle {
    display: flex;
    align-items: center;
    padding: 2px 4px;
    color: var(--text-muted);
    opacity: 0.5;
    cursor: grab;
    touch-action: none;
    user-select: none;
}

.card-drag-handle:hover {
    opacity: 1;
    color: var(--accent-gold);
}

.card-drag-handle:active {
    cursor: grabbing;
}

/* Gap indicator: a full-width bar that appears IN THE SPACE between cards */
.drag-placeholder {
    height: 4px;
    background: var(--accent-gold);
    border-radius: 2px;
    pointer-events: none;
}

/* Title and status section */
.card-title-section {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    overflow: hidden;
    min-width: 0;
    flex: 1;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.2rem;
}

.card-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
}

.status-mastered {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-correct);
    white-space: nowrap;
    min-width: 3rem;
}

.status-progress {
    display: inline-flex;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 3rem;
}

/* Meta row: sections count + inline progress */
.card-meta-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.72rem;
    color: var(--text-muted);
}

.card-mastery-progress {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex: 1;
    max-width: 160px;
}

.card-progress-bar-bg {
    flex: 1;
    height: 3px;
    background-color: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
}

.card-progress-bar-fill {
    height: 100%;
    background: var(--accent-gold);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.card-progress-bar-fill.complete {
    background: var(--color-correct);
}

/* Edit/Delete icons section */
.card-icons {
    display: flex;
    gap: 0.1rem;
    align-items: center;
    flex-shrink: 0;
}

/* Study button section */
.card-action-btn {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    position: absolute;
    bottom: 0.6rem;
    right: 0.8rem;
}

/* Study button wrapper */
.card-actions-wrapper {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-study {
    background-color: var(--accent-gold);
    color: #19120e;
    font-weight: 600;
    font-size: 0.7rem;
    padding: 0.3rem 0.65rem;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    transition: all 0.2s;
    height: 28px;
    min-width: 70px;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-study:hover {
    background-color: var(--accent-gold-hover);
}

.card-management-btns {
    display: flex;
    gap: 0.1rem;
}

.card-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    width: 26px;
    height: 26px;
    border-radius: var(--border-radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    opacity: 0.55;
}

.card-btn:hover {
    opacity: 1;
    color: var(--text-main);
    background-color: var(--accent-gold-light);
}

.card-btn.delete:hover {
    color: #ff5252;
    background-color: rgba(255, 82, 82, 0.08);
}

/* ==========================================================================
   Learning / Study Pane Layout
   ========================================================================== */

.learning-content {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem 1.5rem 5rem;
}

.learning-pane {
    width: 100%;
    max-width: 800px; /* Sized perfectly for focused memorization */
    display: flex;
    flex-direction: column;
    gap: 2.25rem;
}

.btn-nav {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.6rem 1.2rem;
    height: 38px;
}

.btn-nav:hover {
    border-color: var(--accent-gold);
    background-color: var(--accent-gold-light);
}

.btn-nav:disabled {
    opacity: 0.35;
    pointer-events: none;
}

.active-text-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 40%;
}

.header-right-stack {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.3rem;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.25s ease;
}

.icon-btn:hover {
    border-color: var(--accent-gold);
    color: var(--text-main);
    background-color: var(--accent-gold-light);
}

.icon-btn.sync-pending {
    border-color: #e65100;
    color: #e65100;
    background-color: #fff3e0;
}

[data-theme="dark"] .icon-btn.sync-pending {
    border-color: #ffb74d;
    color: #ffb74d;
    background-color: #3d2a18;
}

.user-profile-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    width: 38px;
    height: 38px;
    min-width: 38px;
    min-height: 38px;
    overflow: hidden;
    flex-shrink: 0;
    transition: all 0.25s ease;
}

.user-profile-btn:hover {
    border-color: var(--accent-gold);
    background-color: var(--accent-gold-light);
}

.user-profile-btn img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.header-select {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0 1.5rem 0 0.5rem;
    border-radius: var(--border-radius);
    max-width: 140px;
    height: 38px;
    outline: none;
    transition: all 0.25s ease;
    cursor: pointer;
    text-overflow: ellipsis;
    white-space: nowrap;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='%237a685b'><path d='M0 3l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
}

.header-select:hover {
    border-color: var(--accent-gold);
    color: var(--text-main);
    background-color: var(--accent-gold-light);
}

.header-select option {
    background-color: var(--bg-card);
    color: var(--text-main);
}

/* Main workspace contents */
.workspace-content {
    flex: 1;
    overflow-y: auto;
    padding: 2.5rem 10% 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

/* Empty Workspace State */
.center-state {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 70%;
    width: 100%;
}

.center-card {
    text-align: center;
    max-width: 460px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.gold-seal {
    font-size: 3rem;
    display: block;
    margin-bottom: 1.5rem;
}

.center-card h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.center-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

#active-state {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* ==========================================================================
   Workbench Card
   ========================================================================== */

.workbench {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    transition: background-color 0.4s ease, border-color 0.4s ease;
}

/* Workbench Navigation */
.workbench-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.btn-nav {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.6rem 1.2rem;
}

.btn-nav:hover {
    border-color: var(--accent-gold);
    background-color: var(--accent-gold-light);
}

.btn-nav:disabled {
    opacity: 0.35;
    pointer-events: none;
}

.chunk-progress-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.chunk-indicator {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.progress-bar-bg {
    width: 100%;
    max-width: 320px;
    height: 4px;
    background-color: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    width: 20%;
    height: 100%;
    background: var(--accent-gold);
    border-radius: 2px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Mode & Group Selector Controls Bar */
.learning-controls-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.group-size-control {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.group-size-label {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.segmented-control {
    display: inline-flex;
    background-color: var(--bg-input);
    padding: 4px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.segment-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.55rem 1.5rem;
    min-height: 38px;
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.25s ease;
}

.segment-btn:hover {
    color: var(--text-main);
}

.segment-btn.active {
    background-color: var(--bg-card);
    color: var(--text-main);
    box-shadow: var(--shadow-sm);
}

/* Target Text Display Container */
.text-display-card {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 0;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.text-display-content {
    font-family: var(--font-reading);
    font-size: calc(1.5rem * var(--font-scale));
    line-height: 1.7;
    text-align: center;
    color: var(--text-main);
    max-width: 600px;
    transition: font-size 0.2s ease;
}

.text-display-content .word-hint {
    border-bottom: 1px dashed var(--border-color);
    cursor: help;
    display: inline-block;
}

.clickable-word {
    cursor: pointer;
    border-radius: 2px;
    padding: 0 2px;
    transition: background-color 0.15s ease;
}

.clickable-word:hover {
    background-color: rgba(200, 150, 60, 0.15);
}

.word-reveal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    color: var(--text-main);
    font-weight: 700;
    background-color: rgba(200, 150, 60, 0.3);
    padding: 0 2px;
    border-radius: 2px;
}

.completion-actions {
    display: flex;
    gap: 0.65rem;
    margin-top: 0.85rem;
}

/* Workbench Buttons & Controls */
.workbench-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem 0;
}

.btn-action {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.75rem 1.25rem;
    min-width: 100px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    gap: 0.5rem;
}

.btn-action:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    background-color: var(--accent-gold-light);
}

.btn-icon-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Pulse Record Controls */
.record-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
}

.btn-record {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background-color: var(--accent-gold);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-card);
    position: relative;
    box-shadow: 0 6px 16px rgba(198, 148, 78, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-record:hover {
    background-color: var(--accent-gold-hover);
    transform: scale(1.04);
}

.mic-icon-container {
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

.btn-record:active .mic-icon-container {
    transform: scale(0.9);
}

/* Recording Ripple Effect */
.mic-ripple {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    border: 4px solid var(--accent-gold);
    opacity: 0;
    z-index: 1;
    pointer-events: none;
}

.btn-record.recording {
    background-color: var(--color-incorrect);
    box-shadow: 0 6px 20px rgba(183, 28, 28, 0.4);
}

.btn-record.recording .mic-ripple {
    animation: ripplePulse 1.8s infinite cubic-bezier(0.25, 0, 0, 1);
    border-color: var(--color-incorrect);
}

.record-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.record-timer {
    font-size: 0.85rem;
    font-weight: 700;
    color: #e65100;
    letter-spacing: 0.05em;
    margin-top: 2px;
}

@keyframes ripplePulse {
    0% {
        transform: scale(1);
        opacity: 0.6;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* ==========================================================================
   Feedback & Analysis Panel
   ========================================================================== */

.feedback-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 1.75rem 2rem;
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transition: background-color 0.4s ease, border-color 0.4s ease;
}

.feedback-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.feedback-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--text-main);
}

.accuracy-badge {
    background-color: var(--accent-gold-light);
    color: var(--text-main);
    border: 1px solid var(--accent-gold);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
}

.accuracy-badge.success {
    background-color: var(--bg-correct);
    color: var(--color-correct);
    border-color: var(--border-correct);
}

.accuracy-badge.retry {
    background-color: var(--bg-incorrect);
    color: var(--color-incorrect);
    border-color: var(--border-incorrect);
}

.comparison-display {
    font-family: var(--font-reading);
    font-size: calc(1.3rem * var(--font-scale));
    line-height: 1.8;
    margin-bottom: 1.25rem;
    color: var(--text-muted);
}

/* Visual highlights for word comparisons */
.diff-word {
    padding: 0.1rem 0.25rem;
    margin: 0 0.1rem;
    border-radius: 2px;
    display: inline-block;
    transition: all 0.2s;
}

.diff-word.correct {
    color: var(--color-correct);
    background-color: var(--bg-correct);
    border-bottom: 2px solid var(--color-correct);
}

.diff-word.missing {
    color: var(--color-incorrect);
    background-color: var(--bg-incorrect);
    text-decoration: line-through;
    border-bottom: 2px solid var(--color-incorrect);
    cursor: pointer; /* Allows clicking to hear correct pronunciation */
}

.diff-word.missing:hover {
    opacity: 0.8;
    box-shadow: 0 0 4px var(--color-incorrect);
}

.diff-word.substituted {
    color: var(--color-substituted);
    background-color: var(--bg-substituted);
    border-bottom: 2px solid var(--color-substituted);
}

.diff-word.extra {
    color: var(--text-muted);
    border: 1px dashed var(--border-color);
    text-decoration: line-through;
    opacity: 0.6;
}

.feedback-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.correction-tip {
    font-style: italic;
    color: var(--accent-gold);
    font-weight: 500;
}

.transcription-row {
    font-size: 0.8rem;
    font-style: italic;
    color: var(--text-muted, #888);
    margin-bottom: 0.4rem;
    opacity: 0.8;
}

.feedback-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.feedback-actions .btn {
    flex: 1;
}

.feedback-bottom-nav {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    justify-content: space-between;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Modals & Popups
   ========================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    max-width: 580px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--text-main);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
}

.close-btn:hover {
    color: var(--text-main);
}

.modal-body {
    padding: 2rem;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-main);
}

.modal-body p {
    color: var(--text-main);
}

.modal-body h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin: 1.5rem 0 0.5rem;
    color: var(--text-main);
}

.modal-body h3:first-of-type {
    margin-top: 0;
}

.modal-bullet-list {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.modal-bullet-list li {
    margin-bottom: 0.4rem;
    color: var(--text-main);
}

.modal-body strong {
    color: var(--text-main);
}

.highlight-green {
    color: var(--color-correct);
    font-weight: 600;
}

.highlight-red {
    color: var(--color-incorrect);
    text-decoration: line-through;
    font-weight: 600;
}

.highlight-amber {
    color: var(--color-substituted);
    font-weight: 600;
}

.tip-box {
    background-color: var(--accent-gold-light);
    border-left: 3px solid var(--accent-gold);
    padding: 0.8rem 1rem;
    margin: 1rem 0;
    font-size: 0.9rem;
    color: var(--text-main);
}

/* Dark mode modal improvements */
[data-theme="dark"] .modal-content {
    background-color: #252729;
    border-color: #404347;
}

[data-theme="dark"] .modal-header {
    border-bottom-color: #404347;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Device settings row — always a flex row so mic + speaker sit side by side */
.header-device-settings {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* Range slider — larger touch target via padding, not height */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    padding: 10px 0;
    background-clip: content-box;
    cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    margin-top: -7px;
}
input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (max-width: 992px) {
    .library-page-content {
        padding: 1rem;
    }
    .edit-form-grid {
        grid-template-columns: 1fr;
    }
    .edit-form-card {
        padding: 1.5rem;
    }
    .view-content {
        padding: 1.5rem 1.5rem 3rem;
    }
    .view-header {
        padding: 0 1rem;
    }
    .learning-content {
        padding: 1.5rem 1rem 3rem;
    }
    .card-mastery-progress {
        display: none;
    }
    .learning-controls-bar {
        flex-direction: column;
        gap: 0.8rem;
        align-items: center;
    }
}

@media (max-width: 600px) {
    /* Header: make compact on mobile */
    .view-header {
        flex-wrap: wrap;
        gap: 0.3rem;
        padding: 0.5rem;
    }

    .header-brand {
        flex: 1;
        min-width: 120px;
    }

    .header-controls {
        gap: 0.3rem;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: flex-end;
    }

    .icon-btn {
        width: 32px;
        height: 32px;
        font-size: 0.8rem;
    }

    .user-profile-btn {
        width: 32px;
        height: 32px;
        min-width: 32px;
        min-height: 32px;
    }

    .user-profile-btn img {
        width: 30px;
        height: 30px;
    }

    .btn-settings {
        width: 32px;
        height: 32px;
    }

    .header-select {
        font-size: 0.85rem;
        padding: 0.4rem 0.6rem;
    }

    /* Hide mic/speaker device selectors — mobile only has one mic/speaker anyway */
    .header-device-settings {
        display: none;
    }

    /* Segment buttons: tighter padding so all four fit on one row */
    .segment-btn {
        padding: 0.5rem 0.7rem;
        font-size: 0.78rem;
    }

    /* Card edit/delete: 44×44px tap target */
    .card-btn {
        width: 44px;
        height: 44px;
    }

    /* Edit form actions: stack vertically on small screens */
    .edit-actions-row {
        flex-direction: column;
        align-items: stretch;
    }
    .edit-save-group {
        flex-direction: column;
    }
    .edit-save-group .btn {
        width: 100%;
        justify-content: center;
    }
    .edit-left-group {
        justify-content: center;
    }

    /* List controls: stack vertically on mobile */
    .list-controls-card {
        padding: 0.75rem 0.75rem;
        margin-bottom: 0.75rem;
    }

    .search-sort-row {
        gap: 0.4rem;
        flex-direction: column;
        align-items: stretch;
    }

    /* Search input: full width on mobile */
    .search-wrapper {
        flex: 1 1 100%;
    }

    .search-wrapper input {
        font-size: 0.9rem;
        padding: 0.6rem 0.7rem;
    }

    /* Category dropdown: full width on mobile */
    #library-category-filter {
        font-size: 0.85rem;
        padding: 0.6rem 0.7rem;
        width: 100%;
    }

    /* Add button: full width on mobile */
    .library-page-content .btn.btn-primary {
        padding: 0.6rem 0.7rem;
        font-size: 0.85rem;
        width: 100%;
        justify-content: center;
    }

    /* User avatar - hide email and arrow on mobile */
    .auth-button-container {
        display: flex;
        align-items: center;
    }

    .user-profile-dropdown {
        position: relative;
    }

    .user-email {
        display: none;
    }

    .dropdown-arrow {
        display: none;
    }

    /* Workbench nav prev/next: full-height tap target */
    .btn-nav {
        min-height: 44px;
    }

    /* Mobile card layout: compact 2-column with title/metadata left, button right */
    .library-card {
        grid-template-columns: 1fr auto;
        gap: 0.5rem;
        align-items: stretch;
    }

    .card-main-info {
        display: flex;
        flex-direction: column;
        gap: 0.15rem;
        overflow: hidden;
        min-width: 0;
    }

    .card-title {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        font-size: 0.9rem;
        font-weight: 700;
    }

    .card-title-row {
        display: flex;
        align-items: center;
        gap: 0.4rem;
        overflow: hidden;
    }

    .card-meta-row {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 0.75rem;
        color: var(--text-muted);
    }

    .card-category-tag {
        font-size: 0.65rem;
        padding: 0.15rem 0.4rem;
        background-color: var(--accent-gold-light);
        border-radius: 2px;
    }

    .mastered-badge {
        font-size: 0.65rem;
        padding: 0.2rem 0.4rem;
        background-color: var(--bg-correct);
        color: var(--color-correct);
        border-radius: 2px;
    }

    .card-actions-wrapper {
        display: flex;
        align-items: center;
    }

    .btn-study {
        font-size: 0.75rem;
        padding: 0.4rem 0.6rem;
        white-space: nowrap;
    }

    .card-mastery-progress {
        display: none;
    }
}

/* Settings Menu */
.settings-menu-container {
    position: relative;
}

.btn-settings {
    width: 38px;
    height: 38px;
}

.settings-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    min-width: 160px;
    z-index: 100;
}

.settings-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.7rem 1rem;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    color: var(--text-main);
    font-size: 0.9rem;
    transition: background-color 0.2s ease;
}

.settings-item:hover {
    background-color: var(--accent-gold-light);
}

.settings-item svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.settings-divider {
    margin: 0.3rem 0;
    border: none;
    border-top: 1px solid var(--border-color);
}

.settings-section {
    padding: 0.6rem 1rem;
}

.settings-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 0.3rem;
}

.settings-select {
    width: 100%;
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: var(--border-radius);
    cursor: pointer;
}

.settings-select:hover {
    border-color: var(--accent-gold);
}

.settings-slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.6rem 0;
}

.settings-slider {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(to right, var(--border-color) 0%, var(--border-color) 100%);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    min-width: 100px;
}

.settings-slider::-webkit-slider-runnable-track {
    background: var(--border-color);
    height: 8px;
    border-radius: 4px;
}

.settings-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-gold);
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid var(--bg-card);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.settings-slider::-moz-range-track {
    background: var(--border-color);
    height: 8px;
    border-radius: 4px;
    border: none;
}

.settings-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-gold);
    cursor: pointer;
    border: 2px solid var(--bg-card);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: all 0.2s;
}

.settings-slider::-webkit-slider-thumb:hover {
    background: var(--accent-gold-hover);
    transform: scale(1.15);
}

.settings-slider::-moz-range-thumb:hover {
    background: var(--accent-gold-hover);
    transform: scale(1.15);
}

.settings-slider-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-gold);
    min-width: 2.5rem;
    text-align: center;
    background: var(--bg-app);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    border: 1px solid var(--accent-gold);
}

.theme-label {
    flex: 1;
}

/* Sync History Modal */
.sync-history-modal {
    max-width: 700px;
    max-height: 80vh;
}

.sync-history-body {
    padding: 1.5rem;
    max-height: 60vh;
    overflow-y: auto;
}

.sync-summary {
    background: var(--accent-gold-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.sync-summary-stat {
    display: flex;
    justify-content: space-between;
    margin: 0.4rem 0;
    font-size: 0.9rem;
}

.sync-summary-stat-value {
    font-weight: 600;
    color: var(--text-main);
}

.conflict-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left: 3px solid #ff9800;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.conflict-title {
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.conflict-versions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.conflict-version-box {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    font-size: 0.8rem;
}

.conflict-version-label {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.conflict-version-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0.2rem 0;
}

.conflict-resolution {
    padding: 0.5rem;
    background: var(--bg-correct);
    color: var(--color-correct);
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
}

.no-conflicts {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

.sync-event-item {
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
}

.sync-event-item:last-child {
    border-bottom: none;
}

.sync-event-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.sync-event-icon.success {
    background: var(--bg-correct);
    color: var(--color-correct);
}

.sync-event-icon.warning {
    background: #fff3e0;
    color: #e65100;
}

.sync-event-icon.error {
    background: #ffebee;
    color: #b71c1c;
}

/* Manage Categories Modal */
.manage-categories-modal {
    max-width: 500px;
}

.manage-categories-body {
    padding: 1.5rem;
    max-height: 60vh;
    overflow-y: auto;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 0.75rem;
}

.category-item-name {
    font-weight: 500;
    color: var(--text-main);
    flex: 1;
}

.category-item-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-right: 1rem;
}

.category-item-delete {
    padding: 0.4rem 0.8rem;
    background: #ffebee;
    color: #b71c1c;
    border: 1px solid #b71c1c;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.category-item-delete:hover {
    background: #b71c1c;
    color: white;
}

.no-categories {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Prayer: Prayer List, category and prayer screens
   ========================================================================== */

.section-content {
    padding: 1.5rem 1.5rem 3rem;
}

.item-list {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.section-label {
    max-width: 720px;
    margin: 0 auto 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent-gold);
}

.list-row {
    display: flex;
    align-items: stretch;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.list-row.is-hidden {
    opacity: 0.55;
}

.list-row-main {
    flex: 1;
    min-width: 0;
    min-height: 56px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.25rem;
    background: none;
    border: none;
    color: var(--text-main);
    font-family: var(--font-reading);
    font-size: 1.05rem;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.list-row-main:hover,
.list-row-dots:hover {
    background-color: var(--accent-gold-light);
}

.list-row-label {
    flex: 1;
    overflow-wrap: anywhere;
}

.list-row-tag {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.1rem 0.4rem;
}

.list-row-dots {
    flex-shrink: 0;
    width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    border-left: 1px solid var(--border-color);
    color: var(--text-muted);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.list-empty {
    padding: 2rem 1rem;
    text-align: center;
    font-family: var(--font-reading);
    color: var(--text-muted);
}

/* Status circles: green filled = prayed today, yellow filled = in progress,
   yellow outline = not started today */
.status-circle {
    flex-shrink: 0;
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--status-progress);
    background-color: transparent;
}

.status-circle.status-done {
    border-color: var(--status-done);
    background-color: var(--status-done);
}

.status-circle.status-partial {
    background-color: var(--status-progress);
}

.status-circle.status-large {
    width: 30px;
    height: 30px;
    border-width: 3px;
}

.prayer-status-btn {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.prayer-status-btn:hover {
    background-color: var(--accent-gold-light);
}

.prayer-back-label {
    max-width: 50vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.detail-card {
    max-width: 720px;
    margin: 0 auto;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 1.75rem;
}

.detail-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.detail-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-main);
    overflow-wrap: anywhere;
}

/* Plain text: line breaks and symbols such as ">>>" kept as typed (spec Q16) */
.detail-text {
    font-family: var(--font-reading);
    font-size: 1.1rem;
    line-height: 1.75;
    color: var(--text-main);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.detail-text.is-empty {
    color: var(--text-muted);
    font-style: italic;
}

.detail-edit-textarea {
    width: 100%;
    min-height: 50vh;
    padding: 0.9rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-main);
    font-family: var(--font-reading);
    font-size: 1rem;
    line-height: 1.65;
    resize: vertical;
}

.detail-edit-textarea:focus,
.app-dialog-input:focus {
    outline: none;
    border-color: var(--accent-gold);
}

.detail-edit-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1rem;
}

/* Three-dot menu (positioned next to its button by prayer.js) */
.item-menu {
    position: fixed;
    margin-top: 0;
    min-width: 190px;
    z-index: 150;
}

.settings-item.is-danger {
    color: var(--color-incorrect);
}

/* Prayer dialog */
.app-dialog {
    max-width: 420px;
}

.app-dialog .modal-header {
    padding: 1.25rem 1.5rem;
}

.app-dialog .modal-header h2 {
    font-size: 1.2rem;
    overflow-wrap: anywhere;
}

.app-dialog .modal-body {
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.app-dialog-input {
    width: 100%;
    padding: 0.7rem 0.8rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-main);
    font-family: var(--font-ui);
    font-size: 1rem;
}

.app-dialog-options {
    flex-direction: column;
    gap: 0.5rem;
}

.app-dialog-option {
    width: 100%;
    height: auto;
    min-height: 44px;
    justify-content: flex-start;
    color: var(--text-main);
    text-align: left;
}

.app-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 0 1.5rem 1.25rem;
}

.app-dialog .btn:disabled {
    opacity: 0.5;
    cursor: default;
    transform: none;
}

@media (max-width: 600px) {
    .section-content {
        padding: 1rem 0.75rem 3rem;
    }

    .detail-card {
        padding: 1.25rem;
    }

    .detail-title {
        font-size: 1.35rem;
    }

    .detail-text {
        font-size: 1.05rem;
    }

    .list-row-main {
        padding: 0.8rem 1rem;
    }
}

/* Playfair Display defaults to old-style figures ("00" looks like "oo") */
.detail-title,
#prayer-category-title,
.app-dialog .modal-header h2 {
    font-variant-numeric: lining-nums;
}

/* ==========================================================================
   Bible Reading: search, month groups and the entry form
   ========================================================================== */

.bible-search {
    max-width: 720px;
    margin: 0 auto 1rem;
}

/* Higher specificity than the phone-width .search-wrapper input rule,
   so text never runs under the magnifier icon */
.bible-search input[type="text"] {
    padding-left: 2.25rem;
    height: 42px;
    font-size: 1rem;
}

.month-group {
    margin-bottom: 0.5rem;
}

.month-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 0.25rem;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    text-align: left;
}

.month-chevron {
    flex-shrink: 0;
    color: var(--accent-gold);
    transition: transform 0.2s ease;
}

.month-toggle[aria-expanded="true"] .month-chevron {
    transform: rotate(90deg);
}

.month-label {
    flex: 1;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.month-count {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.month-rows {
    margin-bottom: 0.75rem;
}

/* Date shown before a row's label (Bible Reading rows) */
.list-row-prefix {
    flex-shrink: 0;
    min-width: 6.5rem;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-muted);
}

.detail-date-input {
    width: 100%;
    max-width: 240px;
    height: 44px;
    padding: 0 0.75rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-main);
    font-family: var(--font-ui);
    font-size: 1rem;
    color-scheme: light;
}

[data-theme="dark"] .detail-date-input {
    color-scheme: dark;
}

.detail-date-input:focus {
    outline: none;
    border-color: var(--accent-gold);
}

#bible-entry-form input[type="text"] {
    font-size: 1rem;
}

#bible-entry-form .detail-edit-textarea {
    min-height: 35vh;
}

/* Passage headings and month names contain numbers (see the Playfair note above) */
#bible-entry-passage,
.month-label {
    font-variant-numeric: lining-nums;
}

.home-card .status-circle {
    margin-right: 0.25rem;
}

@media (max-width: 600px) {
    .list-row-prefix {
        min-width: 5.5rem;
        font-size: 0.75rem;
    }
}

/* ==========================================================================
   Memorize daily text: Today's text panel, badge, star and progress line
   ========================================================================== */

.daily-banner {
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-gold);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.daily-banner-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.daily-banner .section-label {
    margin: 0;
}

.daily-banner-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
    overflow-wrap: anywhere;
}

.daily-banner-progress {
    font-family: var(--font-reading);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.daily-badge {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-gold);
    border: 1px solid var(--accent-gold);
    border-radius: var(--border-radius);
    padding: 0.05rem 0.35rem;
}

.library-card.is-daily {
    border-left: 3px solid var(--accent-gold);
}

.card-btn.daily.is-daily {
    color: var(--accent-gold);
}

.daily-progress {
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
    font-family: var(--font-reading);
    font-size: 0.95rem;
    color: var(--text-muted);
}

@media (max-width: 600px) {
    .daily-banner {
        padding: 0.85rem 1rem;
        gap: 0.75rem;
    }

    .daily-banner-title {
        font-size: 1.05rem;
    }
}

/* ==========================================================================
   Sync button (on every screen): a green check in a green circle when
   everything is synced; bold orange sync arrows when changes are waiting;
   the arrows spin while syncing
   ========================================================================== */

.btn-sync,
.btn-sync:hover {
    color: var(--status-done);
}

.btn-sync .sync-arrows,
.btn-sync.sync-pending .sync-ok,
.btn-sync.is-syncing .sync-ok {
    display: none;
}

.btn-sync.sync-pending .sync-arrows,
.btn-sync.is-syncing .sync-arrows {
    display: inline;
}

.btn-sync.sync-pending .sync-icon {
    stroke-width: 3;
}

.btn-sync.sync-pending:hover {
    color: #e65100;
}

[data-theme="dark"] .btn-sync.sync-pending:hover {
    color: #ffb74d;
}

.btn-sync.is-syncing .sync-icon,
.btn-sync.is-uploading .sync-icon {
    animation: sync-spin 1s linear infinite;
}

.btn-sync:disabled {
    cursor: default;
}

@keyframes sync-spin {
    to { transform: rotate(360deg); }
}

/* Phone headers: one row; the title shortens with "…" instead of wrapping,
   so the sync button fits on every screen */
@media (max-width: 600px) {
    .view-header {
        flex-wrap: nowrap;
    }

    .view-header .active-text-title {
        flex: 1 1 auto;
        min-width: 0;
        max-width: none;
        text-align: center;
        font-size: 1.15rem;
    }

    .view-header .header-back .btn-nav {
        padding: 0.5rem 0.7rem;
    }

    .view-header .header-controls,
    .view-header .header-right-stack {
        flex-shrink: 0;
    }

    /* The library's full-width phone button rule must not stretch the panel's Study button */
    .library-page-content .daily-banner .btn.btn-primary {
        width: auto;
        flex-shrink: 0;
    }
}

/* Library cards: the Study button floats in the bottom-right corner, so the
   icon row keeps clear of it (wrapping if needed) and the drag handle can
   never end up underneath it */
.card-status {
    flex-wrap: wrap;
    row-gap: 0.25rem;
    padding-right: 5.5rem;
}

.card-title-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
}

.card-title-row .card-title {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-title-row .daily-badge {
    flex-shrink: 0;
}

/* Library prompt when no daily text is chosen yet */
.daily-banner.is-prompt {
    border-left-style: dashed;
}

.daily-make-btn {
    color: var(--text-main);
}

/* ==========================================================================
   Users screen (admins only)
   ========================================================================== */

.users-add {
    max-width: 720px;
    margin: 0 auto 1.5rem;
}

.users-add .section-label {
    display: block;
    margin-bottom: 0.5rem;
}

.users-add-row {
    display: flex;
    gap: 0.6rem;
}

.users-add-row input[type="text"] {
    flex: 1;
    font-size: 1rem;
    height: 42px;
}

.users-add-row .btn {
    height: 42px;
}

#users-requests .section-label,
#users-view .section-content > .section-label {
    max-width: 720px;
    margin: 0 auto 0.75rem;
}

.users-requests-list {
    margin-bottom: 1.5rem;
}

.account-row {
    align-items: center;
}

.account-row-info {
    flex-wrap: wrap;
    cursor: default;
    row-gap: 0.2rem;
}

.account-row-info:hover {
    background: none;
}

.account-row-detail {
    flex-basis: 100%;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--text-muted);
    overflow-wrap: anywhere;
}

.account-row-actions {
    display: flex;
    gap: 0.5rem;
    padding: 0 1rem;
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .account-row {
        flex-wrap: wrap;
    }

    .account-row-actions {
        width: 100%;
        padding: 0 1rem 0.9rem;
    }

    .account-row-actions .btn {
        flex: 1;
    }
}

.users-export {
    max-width: 720px;
    margin: 1.25rem auto 0;
    display: flex;
    justify-content: flex-end;
}

/* ==========================================================================
   Agreement screen, About and Legal (spec L1–L4)
   ========================================================================== */

.agreement-card {
    max-width: 440px;
}

.agreement-title {
    font-size: 1.6rem;
}

.legal-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-self: stretch;
    text-align: left;
}

.legal-links a {
    display: block;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-main);
    font-family: var(--font-ui);
    font-size: 0.92rem;
    text-decoration: none;
}

.legal-links a::after {
    content: " ↗";
    color: var(--accent-gold);
}

.legal-links a:hover,
.legal-links a:focus-visible {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.agreement-check {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
    align-self: stretch;
    text-align: left;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    line-height: 1.45;
    color: var(--text-main);
    cursor: pointer;
    /* not the uppercase form-label style */
    text-transform: none;
    letter-spacing: normal;
    font-weight: 400;
    margin-bottom: 0;
}

.agreement-check input {
    width: 18px;
    height: 18px;
    margin-top: 0.1rem;
    flex-shrink: 0;
    accent-color: var(--accent-gold);
}

.agreement-card .btn {
    align-self: stretch;
}

.agreement-card .btn-primary:disabled {
    opacity: 0.5;
    cursor: default;
    transform: none;
}

.info-dialog .modal-body {
    gap: 1rem;
}

.about-body {
    align-items: center;
    text-align: center;
}

.about-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
}

.about-line {
    font-family: var(--font-reading);
    color: var(--text-muted);
}

.modal-body .about-line {
    color: var(--text-muted);
}

.about-copyright,
.legal-accepted {
    font-family: var(--font-ui);
    font-size: 0.85rem;
}

.modal-body .legal-accepted {
    color: var(--text-muted);
}

.legal-accepted:empty {
    display: none;
}

/* "Speech today" in the Memorize settings menu (spec K6) */
.speech-usage {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-muted);
}

/* ==========================================================================
   My Reading (spec R1–R7): search plus a book filter; "what I read" under the title
   ========================================================================== */

.reading-filters {
    max-width: 720px;
    margin: 0 auto 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.reading-filters .bible-search {
    margin: 0;
    max-width: none;
}

.reading-book-filter {
    width: 100%;
    height: 42px;
    padding: 0 0.75rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-main);
    font-family: var(--font-ui);
    font-size: 0.95rem;
}

.reading-entry-read {
    font-family: var(--font-reading);
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* "Continue reading": recent books on a new My Reading entry (spec R8) */
.reading-recent {
    margin-bottom: 1.25rem;
}

.reading-recent .section-label {
    margin-bottom: 0.5rem;
}

.reading-recent-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.reading-recent-book {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.1rem;
    width: 100%;
    padding: 0.65rem 0.9rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-main);
    text-align: left;
    cursor: pointer;
}

.reading-recent-book:hover,
.reading-recent-book:focus-visible {
    border-color: var(--accent-gold);
}

.reading-recent-book[aria-pressed="true"] {
    border-color: var(--accent-gold);
    background-color: var(--accent-gold-light);
}

.reading-recent-title {
    font-family: var(--font-reading);
    font-size: 1rem;
    overflow-wrap: anywhere;
}

.reading-recent-when {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--text-muted);
}