:root {
    --paper: #f7f2e8;
    --paper-strong: #fffaf2;
    --ink: #17191d;
    --muted: #5a5f66;
    --line: rgba(23, 25, 29, 0.1);
    --accent: #d06033;
    --accent-soft: rgba(208, 96, 51, 0.14);
    --panel: rgba(255, 250, 242, 0.8);
    --panel-strong: rgba(255, 250, 242, 0.92);
    --shadow: 0 24px 70px rgba(46, 31, 18, 0.12);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --max-width: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background:
        radial-gradient(circle at top right, rgba(208, 96, 51, 0.14), transparent 24rem),
        linear-gradient(180deg, #fdf9f1 0%, #f7f2e8 42%, #f4eee2 100%);
    font-family: "Avenir Next", "Segoe UI", sans-serif;
    line-height: 1.6;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(to right, rgba(23, 25, 29, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(23, 25, 29, 0.04) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 90%);
}

a {
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

.page-shell {
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(18px);
    background: rgba(247, 242, 232, 0.72);
    border-bottom: 1px solid rgba(23, 25, 29, 0.06);
}

.topbar-inner {
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background:
        linear-gradient(135deg, rgba(208, 96, 51, 0.95), rgba(208, 96, 51, 0.4)),
        var(--ink);
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.3);
}

.brand-mark::before,
.brand-mark::after {
    content: "";
    position: absolute;
    background: rgba(255, 250, 242, 0.95);
    border-radius: 999px;
}

.brand-mark::before {
    width: 10px;
    height: 28px;
    left: 11px;
    top: 7px;
}

.brand-mark::after {
    width: 20px;
    height: 10px;
    left: 11px;
    top: 16px;
}

.brand-copy {
    display: grid;
    gap: 2px;
}

.brand-copy strong,
h1,
h2,
h3 {
    font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
    letter-spacing: -0.03em;
}

.brand-copy span {
    font-size: 0.78rem;
    color: var(--muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.nav a {
    text-decoration: none;
    color: var(--muted);
    font-size: 0.95rem;
}

.nav a:hover,
.nav a:focus-visible {
    color: var(--ink);
}

.button-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    font-weight: 600;
    transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-1px);
}

.button-primary {
    background: var(--ink);
    color: var(--paper-strong);
    box-shadow: 0 14px 34px rgba(23, 25, 29, 0.18);
}

.button-secondary {
    border-color: rgba(23, 25, 29, 0.12);
    background: rgba(255, 255, 255, 0.44);
}

.hero {
    padding: 56px 0 36px;
}

.hero-card,
.content-card,
.timeline-card,
.faq-item,
.detail-card {
    background: var(--panel);
    border: 1px solid rgba(23, 25, 29, 0.08);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
    gap: 28px;
    padding: 34px;
    align-items: stretch;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.74rem;
}

.eyebrow::before {
    content: "";
    width: 44px;
    height: 1px;
    background: rgba(23, 25, 29, 0.16);
}

h1 {
    margin: 18px 0 14px;
    font-size: clamp(2.8rem, 4.8vw, 5rem);
    line-height: 0.94;
}

.hero-copy p,
.lede,
.content-card p,
.faq-item p,
.detail-card p,
li {
    color: var(--muted);
    font-size: 1rem;
}

.hero-copy .lede {
    max-width: 36rem;
    font-size: 1.06rem;
}

.stat-strip {
    margin-top: 26px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.stat-card {
    border: 1px solid rgba(23, 25, 29, 0.08);
    border-radius: var(--radius-md);
    padding: 16px;
    background: rgba(255, 255, 255, 0.54);
}

.stat-card strong {
    display: block;
    font-size: 1.4rem;
    margin-bottom: 4px;
}

.hero-visual {
    display: grid;
    gap: 16px;
}

.sheet-preview {
    min-height: 380px;
    padding: 20px;
    border-radius: calc(var(--radius-xl) - 8px);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 241, 229, 0.9)),
        var(--paper-strong);
    border: 1px solid rgba(23, 25, 29, 0.08);
    position: relative;
    overflow: hidden;
}

.sheet-preview::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(23, 25, 29, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(23, 25, 29, 0.05) 1px, transparent 1px);
    background-size: 52px 42px;
    opacity: 0.7;
}

.sheet-preview::after {
    content: "";
    position: absolute;
    inset: auto 26px 24px auto;
    width: 148px;
    height: 148px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(208, 96, 51, 0.18), transparent 70%);
}

.preview-window {
    position: relative;
    z-index: 1;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(23, 25, 29, 0.1);
    background: rgba(255, 255, 255, 0.95);
}

.preview-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: rgba(246, 239, 227, 0.95);
    border-bottom: 1px solid rgba(23, 25, 29, 0.08);
}

.preview-dots {
    display: flex;
    gap: 8px;
}

.preview-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(23, 25, 29, 0.18);
}

.preview-grid {
    display: grid;
    gap: 10px;
    padding: 16px;
}

.preview-row {
    display: grid;
    grid-template-columns: 1.15fr 0.9fr 0.9fr 0.75fr;
    gap: 8px;
}

.preview-cell {
    min-height: 34px;
    padding: 8px 10px;
    border-radius: 10px;
    background: rgba(23, 25, 29, 0.04);
    border: 1px solid rgba(23, 25, 29, 0.05);
    font-size: 0.92rem;
}

.preview-cell strong {
    color: var(--ink);
}

.preview-cell.accent {
    background: var(--accent-soft);
    border-color: rgba(208, 96, 51, 0.18);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.68);
    border: 1px solid rgba(23, 25, 29, 0.08);
    color: var(--muted);
    font-size: 0.88rem;
}

.section {
    padding: 26px 0 10px;
}

.section-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 18px;
}

.section-header h2 {
    margin: 0;
    font-size: clamp(2rem, 3.2vw, 3.2rem);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.content-card,
.detail-card,
.timeline-card,
.faq-item {
    padding: 22px;
}

.content-card h3,
.detail-card h3,
.timeline-card h3,
.faq-item h3 {
    margin: 0 0 10px;
    font-size: 1.28rem;
}

.content-card ul,
.detail-card ul {
    margin: 0;
    padding-left: 18px;
}

.split-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
    gap: 18px;
}

.timeline {
    display: grid;
    gap: 14px;
}

.timeline-card time {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.faq-list {
    display: grid;
    gap: 14px;
}

.notice {
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: rgba(208, 96, 51, 0.1);
    border: 1px solid rgba(208, 96, 51, 0.15);
}

.footer {
    padding: 42px 0 56px;
}

.footer-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 22px;
    border-radius: var(--radius-lg);
    background: rgba(255, 250, 242, 0.72);
    border: 1px solid rgba(23, 25, 29, 0.08);
}

.footer small,
.meta {
    color: var(--muted);
}

.legal-list {
    display: grid;
    gap: 16px;
}

.legal-list section {
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(23, 25, 29, 0.08);
}

.legal-list section:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.legal-list h3 {
    margin: 0 0 8px;
}

.mono {
    font-family: "SF Mono", "Menlo", monospace;
    font-size: 0.92rem;
}

@media (max-width: 980px) {
    .hero-card,
    .split-layout,
    .card-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 34px;
    }

    .sheet-preview {
        min-height: auto;
    }

    .stat-strip {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .topbar-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .hero-card,
    .content-card,
    .detail-card,
    .timeline-card,
    .faq-item {
        padding: 18px;
    }

    h1 {
        font-size: 2.45rem;
    }

    .preview-row {
        grid-template-columns: 1fr 1fr;
    }

    .footer-card {
        align-items: flex-start;
        flex-direction: column;
    }
}