:root {
    --bg: #fcfbf8;
    --bg-secondary: #f2efe7;
    --surface: rgba(255, 255, 255, 0.74);
    --surface-strong: rgba(255, 255, 255, 0.92);
    --text-primary: #1a1a18;
    --text-secondary: #5b5a54;
    --text-tertiary: #848077;
    --border: rgba(22, 22, 18, 0.12);
    --border-strong: rgba(22, 22, 18, 0.22);
    --accent: #35586a;
    --accent-soft: rgba(53, 88, 106, 0.1);
    --code-bg: rgba(53, 88, 106, 0.12);
    --code-border: rgba(53, 88, 106, 0.24);
    --heading-1: #b6504e;
    --heading-2: #b86f2a;
    --heading-3: #8d7618;
    --heading-4: #4f7f2c;
    --heading-5: #3f6f9b;
    --heading-6: #7d56a2;
    --shadow: 0 24px 60px rgba(18, 22, 24, 0.08);
    --title-font: "Iowan Old Style", "Palatino Linotype", "Book Antiqua",
        "Georgia", serif;
    --body-font: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1b1b19;
        --bg-secondary: #242420;
        --surface: rgba(39, 39, 35, 0.78);
        --surface-strong: rgba(45, 45, 40, 0.92);
        --text-primary: #f1eee6;
        --text-secondary: #b8b3a7;
        --text-tertiary: #928e82;
        --border: rgba(255, 255, 255, 0.1);
        --border-strong: rgba(255, 255, 255, 0.2);
        --accent: #97becf;
        --accent-soft: rgba(151, 190, 207, 0.14);
        --code-bg: rgba(151, 190, 207, 0.16);
        --code-border: rgba(151, 190, 207, 0.28);
        --heading-1: #ff9f98;
        --heading-2: #f3bf78;
        --heading-3: #d7d86a;
        --heading-4: #92d96d;
        --heading-5: #93c4ff;
        --heading-6: #d7aaf1;
        --shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(53, 88, 106, 0.08), transparent 28rem),
        linear-gradient(180deg, rgba(255, 255, 255, 0.42), transparent 14rem),
        var(--bg);
    color: var(--text-primary);
    font-family: var(--body-font);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
}

code,
pre {
    font-family: "SFMono-Regular", "SF Mono", "Menlo", monospace;
}

.site-shell {
    width: min(1220px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 1.5rem 0 4rem;
}

.topbar {
    display: flex;
    align-items: flex-start;
    padding: 1rem 0 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    min-width: 0;
}

.brand-mark {
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-family: var(--title-font);
    font-size: 1rem;
    letter-spacing: 0.04em;
}

.brand-text {
    font-family: var(--title-font);
    font-size: 1.1rem;
    letter-spacing: -0.01em;
}

.view {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.home-view {
    overflow: hidden;
}

.hero {
    padding: 2.5rem 2rem 2rem;
    border-bottom: 1px solid var(--border);
    background:
        linear-gradient(135deg, rgba(53, 88, 106, 0.08), transparent 48%),
        var(--surface-strong);
}

.eyebrow {
    margin: 0 0 0.6rem;
    color: var(--text-tertiary);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    font-family: var(--title-font);
    font-weight: 400;
    letter-spacing: -0.015em;
}

h1 {
    color: var(--heading-1);
}

h2 {
    color: var(--heading-2);
}

h3 {
    color: var(--heading-3);
}

h4 {
    color: var(--heading-4);
}

h5 {
    color: var(--heading-5);
}

h6 {
    color: var(--heading-6);
}

.hero h1,
.note-header h1,
.missing-view h1,
.loading-view h1 {
    font-size: clamp(1.75rem, 3.8vw, 2.65rem);
    line-height: 1.06;
}

.hero-copy,
.empty-state p,
.missing-view p,
.loading-view p {
    max-width: 42rem;
    margin: 1rem 0 0;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

.note-subtitle {
    width: 100%;
    max-width: none;
    margin: 1rem 0 0;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.hero-chip,
.note-category {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.home-sections {
    padding: 0 2rem 2rem;
}

.category-header {
    padding: 1.2rem 0 0.75rem;
}

.category-title {
    font-size: 0.76rem;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.note-list {
    display: grid;
}

.note-row {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.9fr);
    gap: 1rem;
    align-items: start;
    padding: 1rem 0;
    border-top: 1px solid var(--border);
}

.note-row:first-child {
    border-top: 1px solid var(--border-strong);
}

.note-link {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.25rem;
}

.note-link:hover .note-title,
.note-link:focus-visible .note-title,
.back-link:hover,
.back-link:focus-visible {
    color: var(--accent);
}

.note-title {
    font-family: var(--title-font);
    font-size: 1.3rem;
    line-height: 1.15;
}

.note-summary {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.note-page {
    padding: 2rem;
}

.note-header {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.note-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.15rem;
}

.back-link {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.note-main {
    padding-top: 1.75rem;
    min-width: 0;
}

.note-content {
    color: var(--text-primary);
}

.note-content > :first-child {
    margin-top: 0;
}

.note-content > :last-child {
    margin-bottom: 0;
}

.note-content h2,
.note-content h3,
.note-content h4,
.note-content h5,
.note-content h6 {
    scroll-margin-top: 2rem;
}

.note-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 0.8rem;
    font-size: clamp(1.4rem, 2.3vw, 1.72rem);
    line-height: 1.14;
}

.note-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.8rem;
    font-size: 1.18rem;
    line-height: 1.2;
}

.note-content h4 {
    margin-top: 1.4rem;
    margin-bottom: 0.65rem;
    font-size: 1.02rem;
    line-height: 1.24;
}

.note-content h5 {
    margin-top: 1.2rem;
    margin-bottom: 0.55rem;
    font-size: 0.94rem;
    line-height: 1.28;
}

.note-content h6 {
    margin-top: 1.1rem;
    margin-bottom: 0.5rem;
    font-size: 0.88rem;
    line-height: 1.3;
}

.note-content p,
.note-content blockquote,
.note-content pre,
.note-content .table-scroll,
.note-content hr {
    margin: 1rem 0;
}

.note-content p,
.note-content li {
    font-size: 1rem;
    line-height: 1.8;
}

.note-content ul,
.note-content ol {
    margin: 0.7rem 0;
    padding-left: 1.1rem;
}

.note-content li + li {
    margin-top: 0;
}

.note-content strong {
    font-weight: 600;
}

.note-content a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
    text-underline-offset: 0.18em;
}

.note-content code {
    padding: 0.16rem 0.42rem;
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: 0.42rem;
    color: var(--accent);
    font-size: 0.93em;
    line-height: 1;
}

.note-content pre {
    padding: 1rem;
    overflow-x: auto;
    border-radius: 0.9rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

.note-content pre code {
    padding: 0;
    background: transparent;
}

.note-content blockquote,
.callout {
    padding: 1rem 1.1rem;
    border-left: 3px solid var(--accent);
    background: var(--accent-soft);
    color: var(--text-primary);
    border-radius: 0.9rem;
}

.note-content blockquote > :first-child,
.callout > :first-child {
    margin-top: 0;
}

.note-content blockquote > :last-child,
.callout > :last-child {
    margin-bottom: 0;
}

.callout.warning {
    border-left-color: #a85d26;
    background: rgba(168, 93, 38, 0.12);
}

.table-scroll {
    overflow-x: auto;
    border-radius: 1rem;
    border: 1px solid var(--border);
    background: var(--surface-strong);
}

.note-content table {
    width: 100%;
    min-width: 520px;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.note-content th {
    padding: 0.85rem 0.9rem;
    text-align: left;
    border-bottom: 1.5px solid var(--border-strong);
    color: var(--text-tertiary);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
}

.note-content td {
    padding: 0.9rem;
    vertical-align: top;
    border-bottom: 1px solid var(--border);
    line-height: 1.65;
}

.note-content tbody tr:last-child td {
    border-bottom: none;
}

.note-content tbody tr:hover td {
    background: var(--bg-secondary);
}

.note-content .verb {
    font-family: var(--title-font);
    font-size: 1.4rem;
    line-height: 1.15;
}

.note-content .meaning {
    line-height: 1.55;
}

.note-content .contrast {
    margin-top: 0.35rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-style: italic;
    line-height: 1.5;
}

.note-content .jp {
    font-size: 0.95rem;
    line-height: 1.55;
}

.note-content .en {
    margin-top: 0.15rem;
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.5;
}

.note-content .ex {
    margin-bottom: 0.75rem;
}

.note-content .ex:last-child {
    margin-bottom: 0;
}

.note-content .section-head td {
    background: var(--bg-secondary);
    color: var(--text-tertiary);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
}

.note-content .conjugation-axis-table {
    width: auto;
    min-width: 760px;
}

.note-content .conjugation-axis-table th,
.note-content .conjugation-axis-table td {
    white-space: nowrap;
}

.note-content .axis-label,
.note-content .axis-left,
.note-content .axis-arrow-left {
    text-align: left;
}

.note-content .axis-form {
    width: 12rem;
    text-align: center;
    font-weight: 600;
}

.note-content .axis-right,
.note-content .axis-arrow-right {
    text-align: right;
}

.note-content .axis-label {
    width: 7.5rem;
    color: var(--text-secondary);
}

.note-content .axis-left,
.note-content .axis-right {
    font-family: var(--title-font);
    font-size: 1.02rem;
}

.note-content .axis-arrow-left,
.note-content .axis-arrow-right {
    width: 3rem;
    color: var(--text-secondary);
}

.note-content .suffix-pattern-table {
    width: auto;
    min-width: 22rem;
}

.note-content .suffix-pattern-table th,
.note-content .suffix-pattern-table td {
    text-align: left;
}

.table-scroll.table-scroll-compact {
    display: inline-block;
    max-width: 100%;
    vertical-align: top;
}

.note-content .axis-note {
    color: var(--text-secondary);
    font-size: 0.94rem;
}

.note-content hr {
    border: 0;
    border-top: 1px solid var(--border);
}

.note-content ruby {
    ruby-align: center;
}

.note-content rt {
    font-size: 0.68em;
}

.empty-state,
.missing-view,
.loading-view {
    padding: 2rem;
}

.empty-state {
    border-top: 1px solid var(--border);
}

.missing-view,
.loading-view {
    text-align: left;
}

.action-link {
    display: inline-flex;
    margin-top: 1.25rem;
    color: var(--accent);
}

.noscript-banner {
    width: min(1080px, calc(100% - 2rem));
    margin: 0 auto 2rem;
    padding: 1rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-family: var(--body-font);
}

@media (max-width: 860px) {
    .note-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .site-shell {
        width: min(100%, calc(100% - 1rem));
        padding-top: 0.75rem;
    }

    .hero,
    .home-sections,
    .note-page,
    .missing-view,
    .loading-view {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .hero {
        padding-top: 1.6rem;
        padding-bottom: 1.5rem;
    }

    .hero h1,
    .note-header h1,
    .missing-view h1,
    .loading-view h1 {
        font-size: 1.68rem;
    }

    .note-page {
        padding-top: 1.25rem;
        padding-bottom: 1.5rem;
    }

    .note-topline {
        flex-direction: column;
        align-items: flex-start;
    }

    .note-content table {
        min-width: 460px;
    }
}