:root {
    --bg-primary: #080d16;
    --bg-card: rgba(13, 20, 35, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f3f4f6;
    --text-secondary: #94a3b8;
    
    --color-green: #10b981;
    --color-green-glow: rgba(16, 185, 129, 0.15);
    --color-orange: #f59e0b;
    --color-orange-glow: rgba(245, 158, 11, 0.15);
    --color-blue: #3b82f6;
    --color-blue-glow: rgba(59, 130, 246, 0.15);
    --color-rose: #f43f5e;
    --color-rose-glow: rgba(244, 63, 94, 0.15);
    --color-purple: #a78bfa;
    --color-purple-glow: rgba(167, 139, 250, 0.15);

    --theme-color: var(--color-green);
    --theme-glow: var(--color-green-glow);
}

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

body {
    font-family: 'Plus Jakarta Sans', 'Noto Sans Devanagari', 'Noto Sans Bengali', 'Noto Sans Tamil', 'Noto Sans Telugu', 'Noto Sans Kannada', 'Noto Sans Malayalam', 'Noto Sans Arabic', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 16px 24px;
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.06) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(244, 63, 94, 0.06) 0px, transparent 50%);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    width: 100%;
    max-width: 800px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 12px;
}

.header-main {
    text-align: left;
    max-width: 800px;
}

.header h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #f3f4f6 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.header p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.control-label-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.speed-subnote {
    font-size: 0.7rem;
    color: var(--text-secondary);
    opacity: 0.6;
    margin-top: 2px;
    font-weight: 500;
}

.app-layout {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.footer-controls {
    width: 100%;
    max-width: 800px;
    margin: 24px auto 0;
    display: flex;
    justify-content: center;
    box-sizing: border-box;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 2px solid var(--border-color);
    border-radius: 14px;
    padding: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-card.indo-aryan { border-color: rgba(16, 185, 129, 0.4); }
.category-card.dravidian { border-color: rgba(245, 158, 11, 0.4); }
.category-card.romance-germanic { border-color: rgba(59, 130, 246, 0.4); }
.category-card.unique { border-color: rgba(167, 139, 250, 0.4); }
.category-card.wildcards { border-color: rgba(244, 63, 94, 0.4); }

.category-title {
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
}
.indo-aryan .category-title { color: var(--color-green); }
.dravidian .category-title { color: var(--color-orange); }
.romance-germanic .category-title { color: var(--color-blue); }
.unique .category-title { color: var(--color-purple); }
.wildcards .category-title { color: var(--color-rose); }

.lang-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 6px;
    padding: 6px 10px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s ease;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(4px);
}

.lang-btn .native-name {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.indo-aryan .lang-btn.active {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--color-green);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
}
.dravidian .lang-btn.active {
    background: rgba(245, 158, 11, 0.15);
    border-color: var(--color-orange);
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.2);
}
.romance-germanic .lang-btn.active {
    background: rgba(59, 130, 246, 0.15);
    border-color: var(--color-blue);
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.2);
}
.wildcards .lang-btn.active {
    background: rgba(244, 63, 94, 0.15);
    border-color: var(--color-rose);
    box-shadow: 0 0 12px rgba(244, 63, 94, 0.2);
}
.unique .lang-btn.active {
    background: rgba(167, 139, 250, 0.15);
    border-color: var(--color-purple);
    box-shadow: 0 0 12px rgba(167, 139, 250, 0.2);
}

.category-footer {
    margin-top: 12px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-style: italic;
    border-top: 1px dashed rgba(255, 255, 255, 0.05);
    padding-top: 8px;
}

.category-tabs {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 6px;
    gap: 6px;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}
.category-tab {
    flex-shrink: 0;
}

.category-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 6px 10px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.category-tab:hover {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
}

.category-tab.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.05);
}

.tab-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}
.dot-indo-aryan { background: var(--color-green); box-shadow: 0 0 6px var(--color-green-glow); }
.dot-dravidian { background: var(--color-orange); box-shadow: 0 0 6px var(--color-orange-glow); }
.dot-romance-germanic { background: var(--color-blue); box-shadow: 0 0 6px var(--color-blue-glow); }
.dot-unique { background: var(--color-purple); box-shadow: 0 0 6px var(--color-purple-glow); }
.dot-wildcards { background: var(--color-rose); box-shadow: 0 0 6px var(--color-rose-glow); }

.category-card {
    animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.main-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    width: fit-content;
    color: var(--text-primary);
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
}

.status-badge:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--theme-color);
    box-shadow: 0 0 12px var(--theme-glow);
}

.status-badge .chevron-icon {
    font-size: 0.65rem;
    opacity: 0.6;
    transition: transform 0.2s ease;
    margin-left: 2px;
}

.status-badge:hover .chevron-icon {
    opacity: 1;
    color: var(--theme-color);
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--theme-color);
    box-shadow: 0 0 6px var(--theme-color);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.display-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.text-reader {
    font-size: 1.8rem;
    line-height: 1.5;
    font-weight: 700;
    font-family: 'Outfit', 'Noto Sans Devanagari', 'Noto Sans Bengali', 'Noto Sans Tamil', 'Noto Sans Telugu', 'Noto Sans Kannada', 'Noto Sans Malayalam', 'Noto Sans Arabic', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', sans-serif;
    color: rgba(255, 255, 255, 0.25);
    transition: all 0.3s ease;
    min-height: 120px;
    user-select: none;
}

.word {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    margin-right: 12px;
    margin-bottom: 8px;
    border-radius: 6px;
    padding: 4px 8px;
    transition: all 0.2s ease;
    cursor: pointer;
    vertical-align: top;
    line-height: 1.2;
    text-align: center;
    border: 1px solid transparent;
}

.word-original {
    font-size: 1.6rem;
    font-weight: 700;
}

.word-meaning {
    font-size: 0.78rem;
    font-weight: 400;
    margin-top: 2px;
    color: rgba(255, 255, 255, 0.45);
    transition: color 0.2s ease;
}

.word:hover {
    color: rgba(255, 255, 255, 0.65);
    background: rgba(255, 255, 255, 0.05);
}

.word:hover .word-meaning {
    color: rgba(255, 255, 255, 0.55);
}

.word.active {
    color: #ffffff;
    background-color: var(--theme-color);
    box-shadow: 0 0 20px var(--theme-glow);
    transform: scale(1.08);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    border-color: var(--theme-color);
}

.word.active .word-meaning {
    color: rgba(255, 255, 255, 0.95);
}

.top-controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.playback-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-grow: 1;
    max-width: 540px;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 8px 16px;
}

.play-btn-compact {
    background: var(--theme-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 8px var(--theme-glow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.play-btn-compact:hover {
    transform: scale(1.08);
    filter: brightness(1.1);
}

.play-btn-compact svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.timeline-container-compact {
    flex-grow: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-bar-wrapper {
    position: relative;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    cursor: pointer;
    flex-grow: 1;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: var(--theme-color);
    box-shadow: 0 0 8px var(--theme-glow);
    border-radius: 3px;
    transition: width 0.05s linear;
}

.timeline-info-compact {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.global-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 10px 16px;
    border-radius: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.cache-info-box {
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    padding-left: 16px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.cache-info-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cache-info-details {
    font-size: 0.75rem;
    color: var(--text-primary);
    opacity: 0.8;
    margin-top: 2px;
    font-variant-numeric: tabular-nums;
    font-weight: 600;
}

.global-speed-select {
    background: #080d16;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 6px 12px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
    font-family: inherit;
}

.global-speed-select:hover {
    background: rgba(255, 255, 255, 0.05);
}

.global-speed-select:focus {
    border-color: var(--theme-color);
}

.global-speed-select option {
    background: #080d16;
    color: #f3f4f6;
}

.status-label-compact {
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-width: 120px;
    text-align: right;
}

.page-footer {
    margin-top: 40px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.rtl {
    direction: rtl;
    text-align: right;
}
.rtl .word {
    margin-left: 18px;
    margin-right: 0;
}


.global-passage-selector {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 6px 14px;
    width: fit-content;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    margin-bottom: 4px;
}

.passage-nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 2px 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.passage-nav-btn:hover:not(:disabled) {
    color: var(--theme-color);
    transform: scale(1.15);
}

.passage-nav-btn:disabled {
    opacity: 0.25;
    cursor: not-allowed;
}

.passage-info-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    user-select: none;
    font-family: 'Outfit', sans-serif;
    letter-spacing: 0.03em;
}

/* Disabled UI elements when translation is unavailable */
.lang-btn.disabled {
    opacity: 0.25 !important;
    pointer-events: none !important;
    cursor: not-allowed;
    border-color: rgba(255, 255, 255, 0.05) !important;
    box-shadow: none !important;
}

.passage-english-reference {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: -8px;
    margin-bottom: 4px;
    font-style: italic;
    padding: 0 4px;
    opacity: 0.85;
    max-width: 800px;
    user-select: text;
}

.play-btn-compact:disabled {
    opacity: 0.3;
    pointer-events: none;
    cursor: not-allowed;
}

.add-passage-container {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 16px;
    margin-top: 4px;
    margin-bottom: 16px;
    max-width: 600px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-sizing: border-box;
    align-self: center;
}

.add-passage-container.hidden {
    display: none;
}

#custom-passage-input {
    width: 100%;
    min-height: 80px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    box-sizing: border-box;
}

#custom-passage-input:focus {
    outline: none;
    border-color: var(--accent-color, #a855f7);
}

.add-passage-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.action-btn {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: background 0.15s ease;
}

.cancel-btn {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
}

.cancel-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.submit-btn {
    background: var(--accent-color, #a855f7);
    color: #ffffff;
}

.submit-btn:hover {
    background: #9333ea;
}

.add-passage-btn {
    margin-left: 8px;
    font-weight: bold;
}

@media (max-width: 900px) {
    body {
        padding: 12px 16px;
    }
    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        margin-bottom: 16px;
        padding-bottom: 8px;
    }
    .header h1 {
        font-size: 1.5rem;
    }
    .header p {
        font-size: 0.8rem;
    }
    .global-controls {
        width: 100%;
        box-sizing: border-box;
        padding: 8px 12px;
        justify-content: space-between;
    }
    .global-passage-selector {
        display: flex;
        width: 100%;
        justify-content: space-between;
        box-sizing: border-box;
        margin-bottom: 2px;
    }
    .display-card {
        padding: 16px;
        border-radius: 16px;
        gap: 12px;
    }
    .top-controls-row {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding-bottom: 10px;
    }
    .status-badge {
        align-self: flex-start;
    }
    .status-label-compact {
        text-align: left;
        min-width: unset;
    }
    .text-reader {
        font-size: 1.5rem;
        min-height: 100px;
    }
    .word-original {
        font-size: 1.35rem;
    }
    .word-meaning {
        font-size: 0.72rem;
    }
}

/* Language Selector Modal/Drawer Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 7, 13, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    background: #0d1423;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
    transform: scale(0.92);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.modal-overlay.active .modal-container {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.modal-header h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.6rem;
    cursor: pointer;
    line-height: 1;
    padding: 4px;
    transition: color 0.2s ease;
}

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

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex-grow: 1;
}

/* Mobile Bottom Sheet/Drawer Layout */
@media (max-width: 600px) {
    .modal-overlay {
        align-items: flex-end;
    }

    .modal-container {
        width: 100%;
        max-width: 100%;
        border-radius: 24px 24px 0 0;
        max-height: 80vh;
        transform: translateY(100%);
        border-bottom: none;
        border-left: none;
        border-right: none;
    }

    .modal-overlay.active .modal-container {
        transform: translateY(0);
    }

    .category-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        white-space: nowrap;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }
    .category-tabs::-webkit-scrollbar {
        display: none;
    }
}