:root {
    --ink: #1a1a2e;
    --paper: #f7f3ed;
    --cream: #ede6d9;
    --vermillion: #d1443c;
    --vermillion-dark: #b5332c;
    --gold: #c9a84c;
    --gold-light: #e8d699;
    --slate: #4a4a5a;
    --mist: #c8c3b8;
    --white: #ffffff;
    --shadow: rgba(26, 26, 46, 0.08);
    --shadow-md: rgba(26, 26, 46, 0.12);
}

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

/* Skip to content link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    background: var(--vermillion);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 0 0 8px 8px;
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 10000;
    text-decoration: none;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 0;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--paper);
    color: var(--ink);
    min-height: 100vh;
    overflow-x: hidden;
}

/* === TEXTURE OVERLAY === */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
}

/* === HEADER === */
.site-header {
    background: var(--ink);
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}

.logo-mark {
    width: 32px;
    height: 32px;
    background: var(--vermillion);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Noto Serif JP', serif;
    color: white;
    font-size: 0.9rem;
    font-weight: 700;
}

.logo-img {
    height: 44px;
    width: auto;
}

.header-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.header-nav a {
    color: var(--mist);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
    letter-spacing: 0.02em;
}

.header-nav a:hover,
.header-nav a[aria-current="page"] { color: var(--paper); }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--mist);
}

.mobile-menu-btn svg {
    width: 24px;
    height: 24px;
}

/* === HERO === */
.hero {
    position: relative;
    padding: 5rem 2rem 6rem;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(175deg, var(--ink) 0%, #2a1a3e 40%, #3a2020 70%, var(--vermillion-dark) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse 60% 50% at 20% 80%, rgba(201, 168, 76, 0.15), transparent),
        radial-gradient(ellipse 40% 40% at 80% 20%, rgba(209, 68, 60, 0.2), transparent);
    pointer-events: none;
}

/* Floating kanji decorations */
.hero-kanji {
    position: absolute;
    font-family: 'Noto Serif JP', serif;
    color: rgba(255,255,255,0.04);
    pointer-events: none;
    user-select: none;
}
.hero-kanji.k1 { top: 10%; left: 5%; font-size: 8rem; transform: rotate(-12deg); }
.hero-kanji.k2 { top: 20%; right: 8%; font-size: 6rem; transform: rotate(8deg); }
.hero-kanji.k3 { bottom: 10%; left: 12%; font-size: 10rem; transform: rotate(5deg); }
.hero-kanji.k4 { bottom: 20%; right: 5%; font-size: 7rem; transform: rotate(-8deg); }

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 100px;
    padding: 0.35rem 1rem;
    font-size: 0.78rem;
    color: var(--gold-light);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(8px);
    letter-spacing: 0.04em;
    font-weight: 500;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-weight: 800;
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    color: var(--paper);
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero h1 .jp-text {
    font-family: 'Noto Serif JP', serif;
    font-weight: 700;
    font-size: 0.75em;
    color: var(--gold-light);
    display: block;
    margin-top: 0.25rem;
}

.hero p {
    color: rgba(247,243,237,0.7);
    font-size: 1.05rem;
    line-height: 1.65;
    max-width: 560px;
    margin: 0 auto;
}

/* === CONVERTER CARD === */
.converter-section {
    margin-top: -3rem;
    padding: 0 1.5rem 4rem;
    position: relative;
    z-index: 10;
}

.converter-card {
    max-width: 780px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 4px 40px var(--shadow-md), 0 1px 3px var(--shadow);
    overflow: hidden;
}

.converter-inner {
    padding: 2.5rem 3rem 3rem;
}

.converter-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--slate);
    margin-bottom: 0.75rem;
}

.input-row {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.name-input {
    flex: 1;
    padding: 1rem 1.25rem;
    font-size: 1.15rem;
    font-family: 'DM Sans', sans-serif;
    border: 2px solid var(--cream);
    border-radius: 12px;
    background: var(--paper);
    color: var(--ink);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.name-input:focus {
    border-color: var(--vermillion);
    box-shadow: 0 0 0 3px rgba(209, 68, 60, 0.1);
}

.name-input::placeholder { color: var(--mist); }

.convert-btn {
    padding: 1rem 2rem;
    background: var(--vermillion);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.convert-btn:hover {
    background: var(--vermillion-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(209, 68, 60, 0.3);
}

.convert-btn:active { transform: translateY(0); }

/* Focus-visible styles for accessibility */
.convert-btn:focus-visible,
.script-toggle:focus-visible,
.name-chip:focus-visible,
.action-btn:focus-visible,
.mobile-menu-btn:focus-visible {
    outline: 2px solid var(--vermillion);
    outline-offset: 2px;
}
.faq-q:focus-visible {
    outline: 2px solid var(--vermillion);
    outline-offset: 2px;
    border-radius: 4px;
}

.script-toggles {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.script-toggle {
    padding: 0.45rem 1rem;
    border: 1.5px solid var(--cream);
    border-radius: 100px;
    background: transparent;
    font-size: 0.82rem;
    font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    color: var(--slate);
    cursor: pointer;
    transition: all 0.2s;
}

.script-toggle:hover {
    border-color: var(--gold);
    color: var(--ink);
}

.script-toggle.active {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--paper);
}

.script-toggle .jp {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 500;
    margin-left: 0.2rem;
}

/* Results */
.results-area {
    margin-top: 2rem;
    display: none;
}

.results-area.visible { display: block; }

.result-block {
    background: var(--paper);
    border-radius: 14px;
    padding: 1.5rem 1.75rem;
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: transform 0.2s;
}

.result-block:hover {
    transform: translateX(4px);
}

.result-script-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--slate);
    margin-bottom: 0.35rem;
}

.result-japanese {
    font-family: 'Noto Serif JP', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.2;
}

.result-romaji {
    font-size: 0.85rem;
    color: var(--mist);
    margin-top: 0.2rem;
    font-style: italic;
}

#romajiOutput {
    font-family: 'DM Sans', sans-serif;
    font-size: 1.6rem;
}

.result-actions {
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1.5px solid var(--cream);
    background: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--slate);
    transition: all 0.2s;
}

.action-btn:hover {
    border-color: var(--vermillion);
    color: var(--vermillion);
    background: rgba(209, 68, 60, 0.04);
}

.action-btn svg { width: 16px; height: 16px; }

.copied-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--ink);
    color: var(--paper);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
}

.copied-toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* === POPULAR NAMES === */
.popular-section {
    max-width: 780px;
    margin: 0 auto 4rem;
    padding: 0 1.5rem;
}

.popular-section > h2 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: 1.5rem;
}

.popular-group {
    margin-bottom: 2rem;
}

.popular-group:last-child {
    margin-bottom: 0;
}

.popular-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1.25rem;
}

.popular-header h2 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.75rem;
}

.popular-header h3 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    font-size: 1.35rem;
    color: var(--ink);
}

.popular-header span {
    font-size: 0.8rem;
    color: var(--mist);
}

.names-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.5rem;
}

.name-chip {
    padding: 0.65rem 1rem;
    background: var(--white);
    border: 1.5px solid var(--cream);
    border-radius: 10px;
    font-size: 0.88rem;
    font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    color: var(--ink);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    text-decoration: none;
}

.name-chip:hover {
    border-color: var(--vermillion);
    background: rgba(209, 68, 60, 0.03);
    transform: translateY(-1px);
}

.name-chip .chip-jp {
    display: block;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.75rem;
    color: var(--mist);
    margin-top: 0.15rem;
}

/* === ABOUT / SEO SECTION === */
.about-section {
    max-width: 780px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

.about-card {
    background: var(--white);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 2px 20px var(--shadow);
}

.about-card h2 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
    line-height: 1.3;
}

.about-card p {
    color: var(--slate);
    line-height: 1.75;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.about-card ul,
.about-card ol {
    margin: 0.5rem 0 1rem 1.2rem;
    color: var(--slate);
    line-height: 1.75;
    font-size: 0.95rem;
}

.about-card li {
    margin-bottom: 0.35rem;
}

.about-card h3 {
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    font-size: 1.35rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--ink);
}

.about-card h4 {
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    margin-top: 1.25rem;
    margin-bottom: 0.55rem;
    color: var(--ink);
}

.writing-systems {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.ws-card {
    padding: 1.5rem;
    background: var(--paper);
    border-radius: 14px;
    text-align: center;
}

.ws-char {
    font-family: 'Noto Serif JP', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--vermillion);
    margin-bottom: 0.5rem;
}

.ws-name {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.ws-jp {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.8rem;
    color: var(--mist);
}

.ws-desc {
    font-size: 0.8rem;
    color: var(--slate);
    margin-top: 0.5rem;
    line-height: 1.5;
}

/* === FAQ === */
.faq-section {
    max-width: 780px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

.faq-section h2 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.faq-item {
    border-bottom: 1px solid var(--cream);
    padding: 1.25rem 0;
}

.faq-item:first-child { border-top: 1px solid var(--cream); }

.faq-q {
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.faq-q::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--mist);
    transition: transform 0.2s;
    flex-shrink: 0;
}

.faq-item.open .faq-q::after {
    transform: rotate(45deg);
    color: var(--vermillion);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--slate);
    font-size: 0.9rem;
    line-height: 1.7;
}

.faq-item.open .faq-a {
    max-height: 300px;
    padding-top: 0.75rem;
}

/* === FOOTER === */
.site-footer {
    background: var(--ink);
    padding: 3rem 2rem;
    text-align: center;
}

.footer-brand {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--paper);
    margin-bottom: 0.5rem;
}

.footer-tagline {
    color: rgba(247,243,237,0.4);
    font-size: 0.82rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: rgba(247,243,237,0.5);
    text-decoration: none;
    font-size: 0.82rem;
    transition: color 0.2s;
}

.footer-links a:hover { color: var(--paper); }

.footer-contact {
    color: rgba(247,243,237,0.45);
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.footer-contact a {
    color: rgba(247,243,237,0.6);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-contact a:hover { color: var(--paper); }

.footer-copy {
    color: rgba(247,243,237,0.25);
    font-size: 0.75rem;
}

/* === ANIMATIONS === */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; opacity: 0; }
.delay-2 { animation-delay: 0.2s; opacity: 0; }
.delay-3 { animation-delay: 0.3s; opacity: 0; }
.delay-4 { animation-delay: 0.4s; opacity: 0; }

/* === RESPONSIVE === */
@media (max-width: 640px) {
    .converter-inner { padding: 1.75rem 1.5rem 2rem; }
    .input-row { flex-direction: column; }
    .convert-btn { justify-content: center; }
    .writing-systems { grid-template-columns: 1fr; }
    .names-grid { grid-template-columns: repeat(2, 1fr); }
    .about-card { padding: 2rem 1.5rem; }
    .hero { padding: 3.5rem 1.5rem 5rem; }
    .site-header { padding: 0.75rem 1rem; }
    .header-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--ink);
        flex-direction: column;
        padding: 1rem 1.5rem;
        gap: 0.75rem;
        border-top: 1px solid rgba(255,255,255,0.08);
    }
    .header-nav a { font-size: 0.78rem; }
    .header-nav.open { display: flex; }
    .mobile-menu-btn { display: block; }
}