@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400;1,700&family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&display=swap');

/* ── Tokens: Light ───────────────────────────── */
:root {
    --cream:        #f5f0e8;
    --cream-mid:    #ece5d8;
    --cream-dark:   #d6ccba;
    --ink:          #1a1714;
    --ink-mid:      #36302a;
    --ink-light:    #7a7065;
    /* Maroon palette based on #762c1f */
    --maroon:       #762c1f;
    --maroon-deep:  #5c2217;
    --maroon-light: #9a4a3a;
    --maroon-pale:  #f5e6e2;
    --maroon-faint: #faf0ed;
    --rule-color:   #d6ccba;
    --shadow:       rgba(26,23,20,0.06);
    --shadow-md:    rgba(26,23,20,0.12);

    --font-display: 'Playfair Display', 'Georgia', serif;
    --font-body:    'EB Garamond', 'Georgia', serif;

    --radius:       2px;
    --transition:   0.18s ease;
}

/* ── Tokens: Dark ────────────────────────────── */
[data-theme="dark"] {
    --cream:        #1c1815;
    --cream-mid:    #252018;
    --cream-dark:   #332c22;
    --ink:          #f0e8d8;
    --ink-mid:      #d8cebb;
    --ink-light:    #8c8070;
    --maroon:       #c46a58;
    --maroon-deep:  #e08a78;
    --maroon-light: #a34d3b;
    --maroon-pale:  #2a1a16;
    --maroon-faint: #221310;
    --rule-color:   #3a3028;
    --shadow:       rgba(0,0,0,0.25);
    --shadow-md:    rgba(0,0,0,0.4);
}

/* ── Reset ───────────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--cream);
    font-family: var(--font-body);
    color: var(--ink);
    line-height: 1.75;
    padding: 0 0 4rem;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
}

/* ── Header ──────────────────────────────────── */
header {
    text-align: center;
    padding: 3rem 1.5rem 2.5rem;
    background-color: var(--cream);
    position: relative;
}

/* Subtle noise texture overlay */
header::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    opacity: 0.4;
}

.header-inner {
    display: inline-block;
    position: relative;
}

.header-rule-top,
.header-rule-bottom {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--maroon), transparent);
    margin: 0.5rem 0;
    opacity: 0.35;
    animation: fadeIn 1s ease both;
}

.header-title-block {
    padding: 0.6rem 0;
    animation: riseIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
    animation-delay: 0.1s;
}

.title-latin {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2.8rem, 7vw, 4.5rem);
    color: var(--ink);
    letter-spacing: 0.04em;
    line-height: 1;
    margin-bottom: 0.05em;
}

.title-nepali {
    font-family: var(--font-display);
    font-weight: 400;
    font-style: italic;
    font-size: clamp(1.1rem, 3vw, 1.6rem);
    color: var(--maroon);
    letter-spacing: 0.06em;
    line-height: 1.3;
}

/* ── Keyframes ───────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes riseIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeSlide {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.5; }
}

/* ── Main container ──────────────────────────── */
main {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ── Sticky search ───────────────────────────── */
.search-sticky-wrapper {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--cream);
    padding: 0.9rem 0 0.5rem;
    transition: box-shadow var(--transition), background-color 0.3s ease;
}

.search-sticky-wrapper.is-stuck {
    box-shadow: 0 2px 16px var(--shadow-md);
    padding-bottom: 0.8rem;
}

.search-container {
    margin-bottom: 0;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 1rem;
    font-size: 1.35rem;
    color: var(--ink-light);
    pointer-events: none;
    line-height: 1;
    top: 50%;
    transform: translateY(-50%);
    transition: color var(--transition);
}

#search-input {
    width: 100%;
    padding: 0.85rem 3rem 0.85rem 2.8rem;
    font-size: 1.1rem;
    font-family: var(--font-body);
    background-color: var(--white);
    color: var(--ink);
    border: 1px solid var(--rule-color);
    border-bottom: 2px solid var(--rule-color);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    border-radius: var(--radius);
}

#search-input::placeholder {
    color: var(--ink-light);
    font-style: italic;
}

#search-input:focus {
    border-color: var(--rule-color);
    border-bottom-color: var(--maroon);
    box-shadow: 0 3px 0 -1px var(--maroon-faint), 0 1px 12px var(--shadow);
}

#search-input:focus + .search-icon,
.search-wrapper:focus-within .search-icon {
    color: var(--maroon);
}

.clear-btn {
    position: absolute;
    right: 0.9rem;
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--ink-light);
    cursor: pointer;
    line-height: 1;
    padding: 0.2rem 0.3rem;
    display: none;
    transition: color var(--transition);
    border-radius: 50%;
}
.clear-btn:hover { color: var(--maroon); }
.clear-btn.visible { display: block; }

.result-count {
    font-size: 0.78rem;
    color: var(--ink-light);
    font-style: italic;
    text-align: right;
    margin-top: 0.4rem;
    min-height: 1.2rem;
    letter-spacing: 0.04em;
}

/* ── Browse section ──────────────────────────── */
.browse-section {
    margin: 2.5rem 0 1.5rem;
    text-align: center;
}

.browse-heading {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--ink-light);
    margin-bottom: 1rem;
}

.browse-letters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    justify-content: center;
    padding: 1rem 0;
    border-top: 1px solid var(--rule-color);
    border-bottom: 1px solid var(--rule-color);
}

.browse-letter {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 2.4rem;
    padding: 0.35rem 0.5rem 0.25rem;
    font-size: 1.1rem;
    font-family: var(--font-body);
    color: var(--ink-mid);
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--radius);
    transition: background-color var(--transition), color var(--transition), border-color var(--transition);
    line-height: 1.2;
}

.browse-letter .letter-count {
    font-size: 0.55rem;
    letter-spacing: 0.04em;
    color: var(--ink-light);
    font-style: normal;
    font-family: var(--font-body);
    opacity: 0.75;
    transition: color var(--transition);
    min-height: 0.9em;
}

.browse-letter:hover {
    background-color: var(--maroon-faint);
    color: var(--maroon);
    border-color: var(--maroon-pale);
}
.browse-letter:hover .letter-count { color: var(--maroon-light); }

.browse-letter.active {
    background-color: var(--maroon);
    color: var(--white);
    border-color: var(--maroon);
}
.browse-letter.active .letter-count { color: rgba(255,255,255,0.7); }

/* ── Info buttons ────────────────────────────── */
.info-buttons {
    margin: 1.8rem 0 0.5rem;
    display: flex;
    gap: 2.5rem;
    justify-content: center;
    position: relative;
}

.text-button {
    background: none;
    border: none;
    font-size: 0.83rem;
    font-family: var(--font-body);
    font-style: italic;
    color: var(--ink-light);
    cursor: pointer;
    padding: 0.15rem 0;
    border-bottom: 1px dotted var(--rule-color);
    transition: color var(--transition), border-color var(--transition);
    letter-spacing: 0.04em;
}
.text-button:hover,
.text-button.active {
    color: var(--maroon);
    border-bottom-color: var(--maroon-light);
}

/* ── Info panel ──────────────────────────────── */
.info-panel {
    margin: 1rem 0 2rem;
    padding: 1.5rem 1.8rem;
    background-color: var(--white);
    border: 1px solid var(--rule-color);
    border-left: 3px solid var(--maroon);
    font-size: 0.93rem;
    line-height: 1.8;
    color: var(--ink-mid);
    animation: fadeSlide 0.2s ease;
    border-radius: var(--radius);
}
.info-panel p + p { margin-top: 0.75rem; }

.hidden { display: none !important; }

/* ── Abbreviation list ───────────────────────── */
.abbr-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr));
    gap: 0.5rem 1.5rem;
}
.abbr-list li { font-size: 0.88rem; }
.abbr-term {
    font-weight: 600;
    color: var(--maroon);
    margin-right: 0.3rem;
}

/* ── Tooltip ─────────────────────────────────── */
.abbr-tooltip {
    position: fixed;
    background-color: var(--ink);
    color: var(--cream);
    padding: 0.3rem 0.7rem;
    font-size: 0.8rem;
    font-family: var(--font-body);
    font-style: italic;
    border-radius: var(--radius);
    pointer-events: none;
    z-index: 1000;
    white-space: nowrap;
    letter-spacing: 0.03em;
    box-shadow: 0 2px 8px var(--shadow-md);
}
.abbr-trigger {
    cursor: help;
    border-bottom: 1px dotted var(--maroon);
    color: var(--maroon);
}

/* ── Result cards ────────────────────────────── */
.results { margin-top: 1.5rem; }

.result-card {
    position: relative;
    background-color: var(--white);
    border: 1px solid var(--rule-color);
    border-left: 3px solid transparent;
    padding: 1.5rem 1.8rem 1.5rem 1.6rem;
    margin-bottom: 0.75rem;
    border-radius: var(--radius);
    animation: fadeSlide 0.2s ease both;
    transition: border-left-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.result-card:hover {
    border-left-color: var(--maroon);
    box-shadow: 0 4px 20px var(--shadow);
    transform: translateX(2px);
}

.result-card:focus {
    outline: none;
    border-left-color: var(--maroon);
    box-shadow: 0 0 0 2px var(--maroon-pale), 0 4px 20px var(--shadow);
}

/* Copy button on card */
.copy-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: 1px solid transparent;
    color: var(--ink-light);
    cursor: pointer;
    font-size: 0.78rem;
    font-family: var(--font-body);
    font-style: italic;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius);
    opacity: 0;
    transition: opacity var(--transition), color var(--transition), border-color var(--transition), background-color var(--transition);
    letter-spacing: 0.03em;
}
.result-card:hover .copy-btn,
.result-card:focus .copy-btn { opacity: 1; }
.copy-btn:hover {
    color: var(--maroon);
    border-color: var(--maroon-pale);
    background-color: var(--maroon-faint);
}
.copy-btn.copied {
    color: var(--maroon);
    border-color: var(--maroon-pale);
    background-color: var(--maroon-faint);
}

.result-word {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 0.35rem;
    line-height: 1.15;
    padding-right: 4rem;
}

.result-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 0.65rem;
}

.result-pos {
    font-size: 0.76rem;
    font-family: var(--font-body);
    padding: 0.1rem 0.5rem;
    background-color: var(--cream);
    border: 1px solid var(--rule-color);
    border-radius: var(--radius);
    color: var(--ink-light);
    letter-spacing: 0.04em;
    transition: background-color var(--transition);
}

.result-english {
    font-style: italic;
    color: var(--maroon);
    font-size: 1rem;
    margin-bottom: 0.75rem;
    font-family: var(--font-body);
}

.result-definition {
    font-size: 0.98rem;
    color: var(--ink-mid);
    line-height: 1.8;
    margin-bottom: 0.6rem;
    font-family: var(--font-body);
}

.result-source {
    font-size: 0.78rem;
    color: var(--ink-light);
    font-style: italic;
    border-top: 1px solid var(--rule-color);
    padding-top: 0.7rem;
    margin-top: 0.5rem;
    font-family: var(--font-body);
}

/* ── Highlight (search match) ────────────────── */
mark {
    background-color: #ffe066;
    color: #1a1714;
    border-radius: 2px;
    padding: 0.08em 0.18em;
    font-style: inherit;
    font-weight: 600;
    box-shadow: 0 1px 0 rgba(180,120,0,0.3);
}

/* ── No results ──────────────────────────────── */
.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--ink-light);
    font-style: italic;
    border: 1px solid var(--rule-color);
    background-color: var(--white);
    border-radius: var(--radius);
    font-size: 0.95rem;
}

/* ── Back to top ─────────────────────────────── */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 1.5rem;
    z-index: 150;
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    background: var(--maroon);
    color: var(--white);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
    pointer-events: none;
    box-shadow: 0 2px 12px var(--shadow-md);
    font-family: var(--font-body);
}
.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.back-to-top:hover {
    background: var(--maroon-deep);
    box-shadow: 0 4px 20px var(--shadow-md);
    transform: translateY(-2px);
}

/* ── Footer ──────────────────────────────────── */
footer {
    text-align: center;
    margin-top: 5rem;
    padding: 0 1.5rem;
}
.footer-ornament {
    color: var(--maroon);
    opacity: 0.35;
    font-size: 1.1rem;
    display: block;
    margin-bottom: 0.5rem;
    letter-spacing: 0.5em;
}
.footer-text {
    font-size: 0.78rem;
    color: var(--ink-light);
    font-style: italic;
    letter-spacing: 0.06em;
    font-family: var(--font-body);
}

/* ── Loading skeleton ────────────────────────── */
.skeleton {
    background: linear-gradient(90deg, var(--cream-mid) 25%, var(--cream-dark) 50%, var(--cream-mid) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.4s infinite;
    border-radius: var(--radius);
    height: 1em;
}
@keyframes shimmer {
    from { background-position: 200% 0; }
    to   { background-position: -200% 0; }
}

/* ── Responsive ──────────────────────────────── */
@media (max-width: 600px) {
    header { padding: 2rem 1rem 2rem; }
    main   { padding: 0 1rem; }

    .title-latin  { font-size: 2.4rem; }
    .title-nepali { font-size: 1.1rem; }

    .browse-letter {
        min-width: 2rem;
        padding: 0.3rem 0.4rem 0.2rem;
        font-size: 1rem;
    }

    .result-word   { font-size: 1.45rem; }
    .result-card   { padding: 1.1rem 1.2rem; }

    .abbr-list {
        grid-template-columns: repeat(auto-fill, minmax(7rem, 1fr));
    }

    .info-buttons { gap: 1.5rem; }

    .back-to-top {
        bottom: 1.2rem;
        right: 1rem;
    }
    .theme-toggle {
        top: 0.8rem;
        right: 0.8rem;
    }
}

.install-prompt {
    text-align: center;
    font-size: 0.85rem;
    color: var(--ink-light);
    background: var(--maroon-faint);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    margin: 0.5rem 0 1rem;
    font-style: italic;
}
.install-link {
    color: var(--maroon);
    text-decoration: underline;
    cursor: pointer;
    font-weight: 500;
}
.install-link:hover {
    color: var(--maroon-deep);
}
.hidden {
    display: none;
}