:root {
    --sand-50: #f7f1e3;
    --sand-100: #efe2c4;
    --sand-200: #e4cf9e;
    --sand-300: #d3b877;
    --clay-500: #9a5f2c;
    --clay-700: #6b3d1d;
    --ink-900: #1f1a17;
    --ink-700: #4f463f;
    --ink-500: #7c7168;
    --paper: #fffdf7;
    --moss: #5e7a47;
    --moss-soft: #edf5e6;
    --gold: #c6922d;
    --gold-soft: #fff0c8;
    --border: rgba(82, 57, 34, 0.14);
    --shadow: 0 18px 45px rgba(58, 38, 20, 0.12);
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 14px;
    --font-ui: "Segoe UI", "Noto Sans", sans-serif;
    --font-display: "Georgia", "Times New Roman", serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-ui);
    color: var(--ink-900);
    background:
        radial-gradient(circle at top left, rgba(198, 146, 45, 0.18), transparent 32%),
        radial-gradient(circle at top right, rgba(94, 122, 71, 0.12), transparent 28%),
        linear-gradient(180deg, #fcf6ea 0%, #f6efdf 38%, #f9f6ee 100%);
    min-height: 100vh;
}

a {
    color: var(--clay-700);
}

a:hover {
    color: var(--clay-500);
    text-decoration: none;
}

.site-shell {
    position: relative;
    overflow: hidden;
}

.site-shell::before,
.site-shell::after {
    content: "";
    position: fixed;
    z-index: -1;
    width: 22rem;
    height: 22rem;
    border-radius: 50%;
    filter: blur(12px);
    opacity: 0.35;
}

.site-shell::before {
    top: -8rem;
    left: -6rem;
    background: rgba(198, 146, 45, 0.2);
}

.site-shell::after {
    right: -8rem;
    bottom: 8rem;
    background: rgba(94, 122, 71, 0.14);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(14px);
    background: rgba(255, 252, 244, 0.84);
    border-bottom: 1px solid rgba(101, 72, 43, 0.08);
}

.topbar .navbar {
    padding: 1rem 0;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 16px;
    background: linear-gradient(135deg, #7c4a23, #c6922d);
    box-shadow: 0 10px 25px rgba(124, 74, 35, 0.24);
}

.brand-mark img {
    height: 1.7rem;
    width: auto;
}

.brand-copy {
    display: flex;
    flex-direction: column;
    margin-left: 0.9rem;
}

.brand-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.1;
}

.brand-subtitle {
    margin: 0.12rem 0 0;
    color: var(--ink-500);
    font-size: 0.82rem;
}

.nav-links {
    align-items: center;
    gap: 0.35rem;
}

.nav-links .nav-link {
    color: var(--ink-700) !important;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.7rem 1rem !important;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.nav-links .nav-link:hover,
.nav-links .nav-link:focus {
    color: var(--clay-700) !important;
    background: rgba(154, 95, 44, 0.08);
    transform: translateY(-1px);
}

.nav-links .nav-link-accent {
    background: linear-gradient(135deg, #6b3d1d, #a9692f);
    color: #fff !important;
    box-shadow: 0 12px 24px rgba(107, 61, 29, 0.2);
}

.nav-links .nav-link-accent:hover,
.nav-links .nav-link-accent:focus {
    background: linear-gradient(135deg, #7c4a23, #b77739);
    color: #fff !important;
}

.page {
    padding: 2rem 0 4rem;
}

.hero-panel,
.content-card,
.result-card,
.legend-card,
.keyboard-panel,
.footer-panel {
    background: rgba(255, 253, 247, 0.88);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.hero-panel {
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
}

.hero-panel::after {
    content: "𐰴 𐰆 𐰺 𐰚";
    position: absolute;
    right: 1.5rem;
    bottom: 1rem;
    color: rgba(107, 61, 29, 0.08);
    font-size: clamp(2rem, 7vw, 5.5rem);
    letter-spacing: 0.3rem;
    pointer-events: none;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(198, 146, 45, 0.14);
    color: var(--clay-700);
    font-weight: 700;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero-title {
    margin: 1rem 0 0.85rem;
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5vw, 4.25rem);
    line-height: 0.98;
    max-width: 12ch;
}

.hero-lead {
    max-width: 44rem;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--ink-700);
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1.8rem;
}

.metric-card {
    padding: 1rem 1.1rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(244,235,216,0.9));
    border: 1px solid rgba(130, 93, 55, 0.12);
}

.metric-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--ink-900);
}

.metric-label {
    color: var(--ink-500);
    font-size: 0.9rem;
}

.section-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
    gap: 1.5rem;
    margin-top: 1.75rem;
}

.content-card,
.result-card,
.legend-card,
.keyboard-panel {
    padding: 1.5rem;
}

.card-title {
    margin: 0 0 0.35rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
}

.card-subtitle {
    color: var(--ink-500);
    margin-bottom: 1.1rem;
}

.form-shell {
    display: grid;
    gap: 1rem;
}

.form-label {
    font-weight: 700;
    margin-bottom: 0.55rem;
}

.hero-textarea,
.keyboard-textarea {
    width: 100%;
    min-height: 180px;
    border-radius: 22px;
    border: 1px solid rgba(107, 61, 29, 0.15);
    padding: 1.1rem 1.2rem;
    background: rgba(255,255,255,0.9);
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.03);
    resize: vertical;
    font-size: 1rem;
    line-height: 1.6;
}

.hero-textarea:focus,
.keyboard-textarea:focus {
    outline: none;
    border-color: rgba(154, 95, 44, 0.45);
    box-shadow: 0 0 0 4px rgba(154, 95, 44, 0.12);
}

.action-row,
.keyboard-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.copy-chip,
.mode-toggle {
    border: none;
    border-radius: 999px;
    font-weight: 700;
    padding: 0.9rem 1.25rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.primary-btn {
    color: #fff;
    background: linear-gradient(135deg, #7c4a23, #c07b2c);
    box-shadow: 0 12px 26px rgba(124, 74, 35, 0.24);
}

.secondary-btn {
    color: var(--ink-900);
    background: rgba(198, 146, 45, 0.14);
}

.ghost-btn {
    color: var(--ink-700);
    background: rgba(255,255,255,0.7);
    border: 1px solid rgba(107, 61, 29, 0.12);
}

.copy-chip {
    color: var(--ink-900);
    background: rgba(94, 122, 71, 0.13);
    padding: 0.55rem 0.95rem;
    font-size: 0.9rem;
}

.mode-toggle {
    color: #fff;
    background: linear-gradient(135deg, #4c6838, #79985d);
}

.primary-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover,
.copy-chip:hover,
.mode-toggle:hover {
    transform: translateY(-1px);
}

.primary-btn:focus,
.secondary-btn:focus,
.ghost-btn:focus,
.copy-chip:focus,
.mode-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(154, 95, 44, 0.14);
}

.tips-list,
.feature-list {
    display: grid;
    gap: 0.8rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.tips-list li,
.feature-list li {
    display: flex;
    gap: 0.8rem;
    align-items: flex-start;
    color: var(--ink-700);
}

.tips-list li::before,
.feature-list li::before {
    content: "•";
    color: var(--gold);
    font-size: 1.2rem;
    line-height: 1;
}

.result-section-stack {
    display: grid;
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.result-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.result-kicker {
    color: var(--clay-700);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dictionary-output,
.visual-output {
    line-height: 1.75;
    color: var(--ink-900);
}

.dictionary-output .btn-dic {
    display: inline-block;
    margin: 0 0.2rem 0.25rem 0;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: rgba(79, 70, 63, 0.1);
    color: var(--ink-900);
}

.dictionary-output .btn-dic:hover {
    background: rgba(154, 95, 44, 0.16);
}

.rune-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.rune-panel {
    padding: 1rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(246,239,223,0.9));
    border: 1px solid rgba(107, 61, 29, 0.12);
}

.rune-script {
    font-size: clamp(1.4rem, 3.5vw, 2.1rem);
    line-height: 1.55;
    letter-spacing: 0.08em;
    word-break: break-word;
}

.interpretation-line {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem 1rem;
    line-height: 1.8;
}

.interpretation-item {
    padding: 0.5rem 0.8rem;
    border-radius: 14px;
    background: rgba(255,255,255,0.7);
    border: 1px solid rgba(107, 61, 29, 0.1);
}

.word-reading-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.word-reading-card {
    padding: 1.1rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(246,239,223,0.92));
    border: 1px solid rgba(107, 61, 29, 0.14);
    display: grid;
    gap: 0.85rem;
}

.word-reading-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}

.word-reading-form {
    font-size: 1.7rem;
    line-height: 1.3;
    font-weight: 700;
}

.word-reading-segment {
    display: grid;
    gap: 0.35rem;
}

.word-reading-label {
    color: var(--ink-500);
    font-size: 0.77rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.word-reading-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.7rem;
}

.word-reading-meta-block {
    padding: 0.8rem 0.9rem;
    border-radius: 14px;
    background: rgba(255,255,255,0.7);
    border: 1px solid rgba(107, 61, 29, 0.1);
}

.word-reading-value {
    font-size: 1rem;
    color: var(--ink-900);
    word-break: break-word;
    overflow-wrap: anywhere;
    line-height: 1.45;
}

.word-reading-summary {
    display: grid;
    gap: 0.7rem;
}

.word-reading-summary-block {
    padding: 0.8rem 0.9rem;
    border-radius: 14px;
    background: rgba(255,255,255,0.64);
    border: 1px solid rgba(107, 61, 29, 0.08);
}

.segment-line {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 0.25rem;
}

.segment-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.6rem;
    border-radius: 999px;
    background: rgba(198, 146, 45, 0.14);
    color: var(--clay-700);
    font-size: 0.82rem;
    font-weight: 700;
    line-height: 1.2;
}

.word-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 0.25rem;
}

.word-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    font-size: 0.82rem;
    line-height: 1.2;
    font-weight: 700;
}

.word-badge-gram {
    background: rgba(94, 122, 71, 0.12);
    color: var(--moss);
}

.word-badge-info {
    background: rgba(198, 146, 45, 0.16);
    color: var(--clay-700);
}

.word-badge-warn {
    background: rgba(165, 56, 56, 0.12);
    color: #8e2c2c;
}

.word-runes {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.7rem;
}

.word-rune-box {
    padding: 0.95rem 1rem;
    border-radius: 14px;
    background: rgba(255,255,255,0.88);
    border: 1px solid rgba(107, 61, 29, 0.12);
}

.word-rune-box-yenisey {
    box-shadow: inset 0 0 0 1px rgba(94, 122, 71, 0.12);
}

.word-rune-box-orhon {
    box-shadow: inset 0 0 0 1px rgba(154, 95, 44, 0.12);
}

.word-rune-script {
    margin-top: 0.35rem;
    font-size: 1.7rem;
    line-height: 1.4;
    letter-spacing: 0.06em;
    word-break: break-word;
    overflow-wrap: anywhere;
}

.visual-compact {
    padding: 1rem;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.62);
    border: 1px solid rgba(107, 61, 29, 0.1);
}

.compact-summary-block {
    opacity: 0.92;
}

.short-vowel {
    color: #2b59c3;
    font-weight: 700;
}

.long-vowel {
    color: #2e8b57;
    font-weight: 700;
}

.pharyngealized-vowel {
    color: #c96b18;
    font-weight: 700;
}

.unrounded-vowel-front {
    color: #177e89;
    font-weight: 700;
}

.unrounded-vowel-back {
    color: #0b5d5f;
    font-weight: 700;
}

.rounded-vowel-front {
    color: #a64d79;
    font-weight: 700;
}

.rounded-vowel-back {
    color: #c04c86;
    font-weight: 700;
}

.strong-consonant {
    color: #a32626;
}

.weak-consonant {
    color: #6d3c8f;
}

.extra-weak-consonant {
    color: #6d6d6d;
}

.strong-consonant-highlight {
    color: #7a1010;
    text-decoration: underline;
}

.weak-consonant-highlight {
    color: #5d2c81;
    text-decoration: underline;
}

.legend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    line-height: 1.35;
}

.legend-item span {
    min-width: 2.4rem;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.15rem 0.45rem;
    border-radius: 10px;
    font-weight: 700;
}

.keyboard-mode-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.55rem 0.9rem;
    border-radius: 999px;
    background: rgba(94, 122, 71, 0.12);
    color: var(--moss);
    font-weight: 700;
}

.keyboard-frame {
    display: grid;
    gap: 0.7rem;
    margin-top: 1.25rem;
}

.keyboard-row {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0.45rem;
}

.keyboard-button,
.keyboard-space {
    min-height: 4rem;
    border-radius: 18px;
    border: 1px solid rgba(107, 61, 29, 0.12);
    background: linear-gradient(180deg, rgba(255,255,255,0.94), rgba(236,226,205,0.9));
    color: var(--ink-900);
    font-weight: 700;
    box-shadow: 0 8px 18px rgba(60, 41, 24, 0.08);
    transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.keyboard-button:hover,
.keyboard-space:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 20px rgba(60, 41, 24, 0.12);
}

.keyboard-button:focus,
.keyboard-space:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(154, 95, 44, 0.14);
}

.keyboard-button.active-tuvan,
.keyboard-space.active-tuvan {
    background: linear-gradient(180deg, #4c6838, #79985d);
    color: #fff;
}

.keyboard-button.active-rune,
.keyboard-space.active-rune {
    background: linear-gradient(180deg, #8f521c, #c6922d);
    color: #fff;
}

.keyboard-button.keyboard-trans {
    opacity: 0.55;
}

.keyboard-space {
    grid-column: span 12;
}

.mini-note {
    margin: 0;
    color: var(--ink-500);
    font-size: 0.92rem;
}

.input-limit-note {
    color: var(--ink-500);
    font-size: 0.88rem;
}

.input-error {
    padding: 0.9rem 1rem;
    border-radius: 14px;
    background: rgba(165, 56, 56, 0.1);
    color: #8e2c2c;
    border: 1px solid rgba(165, 56, 56, 0.14);
    font-weight: 700;
}

.prose-block {
    display: grid;
    gap: 1rem;
    line-height: 1.8;
    color: var(--ink-700);
}

.prose-block p,
.prose-block ul {
    margin: 0;
}

.prose-block ul {
    padding-left: 1.2rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.info-tile {
    padding: 1rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(246,239,223,0.9));
    border: 1px solid rgba(107, 61, 29, 0.12);
}

.info-tile h3 {
    margin: 0 0 0.45rem;
    font-size: 1.05rem;
    font-family: var(--font-display);
}

.footer-panel {
    margin-top: 2rem;
    padding: 1.25rem 1.5rem;
}

.footer-panel p {
    margin: 0.3rem 0;
    color: var(--ink-700);
}

.modal-content {
    border-radius: 22px;
    border: 1px solid rgba(107, 61, 29, 0.12);
}

@media (max-width: 991px) {
    .section-grid {
        grid-template-columns: 1fr;
    }

    .hero-panel {
        padding: 2rem 1.4rem;
    }

    .content-card,
    .result-card,
    .legend-card,
    .keyboard-panel {
        padding: 1.2rem;
    }

    .keyboard-row {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }
}

@media (max-width: 575px) {
    .page {
        padding-top: 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .action-row,
    .keyboard-actions,
    .result-header {
        flex-direction: column;
        align-items: stretch;
    }

    .keyboard-row {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .keyboard-button,
    .keyboard-space {
        min-height: 3.5rem;
        font-size: 0.95rem;
    }

    .word-reading-meta,
    .word-runes {
        grid-template-columns: 1fr;
    }
}