/* === shared.css — hiragana.web.id Unified Design System === */

/* ===== CSS VARIABLES ===== */
:root {
    --bg: #080c14;
    --bg2: #0e1220;
    --bg3: #151a2b;
    --fg: #e2e4ec;
    --fg2: #7a7f94;
    --accent: #e63950;
    --accent2: #ff5e7a;
    --gold: #e2b04a;
    --blue: #4a9eff;
    --green: #2ecc71;
    --red: #e74c3c;
    --purple: #9b6bff;
    --border: #1e2333;
    --radius: 12px;
    --radius-sm: 8px;
    --font-jp: 'Noto Sans JP', sans-serif;
}

/* ===== BASE RESET & TYPOGRAPHY ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--fg);
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.7;
    min-height: 100vh;
}

a {
    color: var(--blue);
    text-decoration: none;
}

a:hover {
    color: var(--accent2);
}

/* ===== UNIFIED CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 20px;
}

/* ===== HEADER & TOP NAVBAR ===== */
header {
    position: relative;
    z-index: 9999;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    flex-wrap: wrap;
    gap: 12px;
    background: rgba(8, 12, 20, 0.94);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo a {
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--accent2);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo span {
    font-size: 0.75rem;
    color: var(--fg2);
    white-space: nowrap;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.main-nav a,
.main-nav .nav-label {
    padding: 0.35rem 0.6rem;
    border-radius: 6px;
    color: #9999aa;
    text-decoration: none;
    font-size: 0.78rem;
    transition: all 0.2s;
    white-space: nowrap;
    cursor: pointer;
    display: inline-block;
}

.main-nav a:hover,
.main-nav .nav-label:hover {
    color: #e0e0e0;
    background: #222230;
}

.main-nav a.nav-home,
.main-nav a.nav-pdf,
.main-nav a.nav-progress,
.main-nav a.nav-about {
    font-weight: 600;
    border: 1px solid #2a2a3a;
}

.main-nav a.nav-home:hover,
.main-nav a.nav-pdf:hover,
.main-nav a.nav-progress:hover,
.main-nav a.nav-about:hover {
    border-color: #7c3aed;
}

.nav-group {
    position: relative;
}

.nav-label {
    user-select: none;
}

.nav-label::after {
    content: '▾';
    margin-left: 2px;
    font-size: 0.7em;
}

.nav-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #1a1a24;
    border: 1px solid #2a2a3a;
    border-radius: 8px;
    padding: 0.3rem 0;
    min-width: 190px;
    z-index: 99999;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
}

.nav-group:hover .nav-dropdown {
    display: block;
}

.nav-dropdown a {
    display: block;
    padding: 0.4rem 1rem;
    font-size: 0.78rem;
    color: #9999aa;
    text-decoration: none;
    border-radius: 0;
}

.nav-dropdown a:hover {
    color: #e0e0e0;
    background: #222230;
}

/* Active nav state */
.nav-group.open .nav-dropdown {
    display: block !important;
}

/* ===== BOTTOM BAB NAV ===== */
.bab-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(8, 12, 20, 0.94);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
}

.bab-nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: 56px;
}

.bab-nav-brand {
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--accent2);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.bab-nav-links {
    display: flex;
    gap: 2px;
    overflow-x: auto;
}

.bab-nav-links a {
    color: var(--fg2);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 18px;
    font-size: 0.82rem;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.2s;
}

.bab-nav-links a:hover,
.bab-nav-links a.active {
    color: var(--accent2);
    background: rgba(230, 57, 80, 0.08);
}

/* ===== FOOTER ===== */
.site-footer {
    text-align: center;
    padding: 32px 20px;
    color: var(--fg2);
    font-size: 0.78rem;
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.footer-links a {
    color: var(--fg2);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.72rem;
    transition: all 0.2s;
}

.footer-links a:hover {
    color: var(--accent2);
    background: rgba(230, 57, 80, 0.08);
}

/* ===== HERO ===== */
.hero {
    text-align: center;
    padding: 40px 20px 32px;
}

.hero h1 {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--accent2);
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.hero .subtitle {
    color: var(--fg2);
    font-size: 0.95rem;
}

/* ===== SECTIONS ===== */
.section {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 32px;
    margin-bottom: 20px;
}

.section h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent2);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--blue);
    margin: 20px 0 10px;
}

.section p {
    color: var(--fg2);
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 10px;
}

/* ===== CARD GRID ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    margin: 12px 0;
}

.card {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    transition: all 0.2s;
}

.card:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

.card .card-jp {
    font-family: var(--font-jp);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--fg);
    margin-bottom: 4px;
}

.card .card-id {
    font-size: 0.82rem;
    color: var(--fg2);
}

.card .card-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.65rem;
    font-weight: 600;
    margin-right: 4px;
}

.card .tag-blue {
    background: rgba(74, 158, 255, 0.15);
    color: var(--blue);
}

.card .tag-green {
    background: rgba(46, 204, 113, 0.15);
    color: var(--green);
}

.card .tag-gold {
    background: rgba(226, 176, 74, 0.15);
    color: var(--gold);
}

.card .tag-red {
    background: rgba(231, 76, 60, 0.15);
    color: var(--red);
}

/* ===== BUTTONS ===== */
.tab-nav {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.tab-btn {
    background: var(--bg3);
    color: var(--fg2);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    transition: all 0.2s;
}

.tab-btn:hover,
.tab-btn.active {
    border-color: var(--accent);
    color: var(--accent2);
    background: rgba(230, 57, 80, 0.06);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.chapter-nav {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 28px;
}

.chapter-nav a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 22px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s;
    background: var(--bg3);
    color: var(--fg2);
    border: 1px solid var(--border);
}

.chapter-nav a:hover,
.chapter-nav a.active {
    border-color: var(--accent);
    color: var(--accent2);
    background: rgba(230, 57, 80, 0.06);
}

/* ===== TABLES ===== */
.kana-table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
}

.kana-table th {
    padding: 6px 10px;
    text-align: center;
    background: var(--bg3);
    color: var(--fg2);
    font-size: 0.75rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
}

.kana-table td {
    padding: 10px 6px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.kana-table .hira {
    font-family: var(--font-jp);
    font-size: 1.3rem;
    color: var(--accent2);
    font-weight: 600;
}

.kana-table .kata {
    font-family: var(--font-jp);
    font-size: 1.3rem;
    color: var(--blue);
    font-weight: 600;
}

.kana-table .romaji {
    font-size: 0.72rem;
    color: var(--fg2);
}

.kana-table td:hover {
    background: rgba(74, 158, 255, 0.05);
}

/* ===== NOTE ===== */
.note {
    background: rgba(74, 158, 255, 0.06);
    border: 1px solid rgba(74, 158, 255, 0.2);
    border-radius: 10px;
    padding: 14px 18px;
    margin: 12px 0;
}

.note .note-title {
    color: var(--blue);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 4px;
}

.note p {
    font-size: 0.82rem;
}

/* ===== QUIZ LINK ===== */
.quiz-cta {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    text-decoration: none;
    color: var(--fg);
    margin: 8px 0;
    transition: all 0.2s;
}

.quiz-cta:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

.quiz-cta .icon {
    font-size: 1.4rem;
}

.quiz-cta .info {
    flex: 1;
}

.quiz-cta .info .title {
    font-weight: 600;
    font-size: 0.9rem;
}

.quiz-cta .info .desc {
    font-size: 0.75rem;
    color: var(--fg2);
}

/* ===== CONVERSATION ===== */
.convo {
    background: var(--bg3);
    border-radius: 10px;
    padding: 14px 18px;
    margin: 8px 0;
}

.convo .speaker {
    font-size: 0.72rem;
    color: var(--fg2);
    margin-bottom: 2px;
    font-weight: 600;
}

.convo .text {
    font-family: var(--font-jp);
    font-size: 1.05rem;
    color: var(--fg);
}

.convo .trans {
    font-size: 0.8rem;
    color: var(--fg2);
    margin-top: 2px;
}

/* ===== PATTERN LIST ===== */
.pattern-item {
    display: flex;
    align-items: baseline;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.pattern-num {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-right: 10px;
}

.pattern-name {
    font-family: var(--font-jp);
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--fg);
}

.pattern-desc {
    font-size: 0.78rem;
    color: var(--fg2);
    margin-left: 8px;
}

/* ===== VOCAB CATEGORY ===== */
.vocab-cat {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    margin-bottom: 8px;
}

.vocab-cat h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--blue);
    margin-bottom: 8px;
}

.vocab-cat .word {
    display: inline-block;
    margin: 3px 6px 3px 0;
}

.vocab-cat .jp {
    font-family: var(--font-jp);
    font-size: 0.9rem;
    color: var(--accent2);
    font-weight: 500;
}

.vocab-cat .id {
    font-size: 0.72rem;
    color: var(--fg2);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        padding: 10px 14px;
        gap: 8px;
    }

    .main-nav {
        flex-direction: column;
        align-items: stretch;
        gap: 0.15rem;
    }

    .nav-dropdown {
        position: static;
        box-shadow: none;
        border: none;
        padding-left: 1rem;
        display: none;
    }

    .nav-group.open .nav-dropdown {
        display: block;
    }

    .nav-group {
        cursor: pointer;
    }

    .bab-nav-inner {
        flex-direction: column;
        height: auto;
        padding: 10px 14px;
        gap: 8px;
    }

    .bab-nav-links a {
        padding: 5px 10px;
        font-size: 0.75rem;
    }

    .section {
        padding: 20px 18px;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .container {
        padding: 20px 14px;
    }
}

/* ===== PRINT ===== */
@media print {
    .container {
        max-width: 100%;
    }

    .main-nav,
    .bab-nav,
    .header-inner,
    .tab-nav,
    .nav-group,
    .nav-dropdown,
    header,
    .site-footer {
        display: none !important;
    }
}