:root {
    color-scheme: light;
    --bg: #f6efe5;
    --bg-accent: #fffdf9;
    --surface: rgba(255, 255, 255, 0.74);
    --surface-strong: rgba(255, 255, 255, 0.92);
    --ink: #17120f;
    --muted: #66584d;
    --line: rgba(23, 18, 15, 0.12);
    --accent: #cc5f2c;
    --accent-deep: #8b3820;
    --shadow: 0 30px 80px rgba(103, 52, 33, 0.16);
    font-family: "Avenir Next", "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    background:
        radial-gradient(circle at top left, rgba(255, 201, 149, 0.55), transparent 34%),
        radial-gradient(circle at right 12% top 10%, rgba(255, 145, 96, 0.18), transparent 24%),
        linear-gradient(180deg, #fffaf3 0%, var(--bg) 58%, #efe3d5 100%);
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
}

a {
    color: inherit;
}

code {
    font-family: "SFMono-Regular", "SF Mono", "IBM Plex Mono", monospace;
    font-size: 0.92em;
}

.page-shell {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 4.5rem 0 5rem;
}

.hero,
.signal-card,
.boundary-panel {
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
}

.hero {
    position: relative;
    overflow: hidden;
    padding: clamp(2rem, 4vw, 4.5rem);
    border: 1px solid var(--line);
    border-radius: 2rem;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.88), rgba(255, 247, 239, 0.72)),
        linear-gradient(120deg, rgba(204, 95, 44, 0.08), rgba(255, 255, 255, 0));
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto -8rem -8rem auto;
    width: 18rem;
    aspect-ratio: 1;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(204, 95, 44, 0.22), transparent 72%);
}

.eyebrow,
.signal-label {
    margin: 0 0 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent-deep);
}

.hero h1,
.boundary-panel h2,
.signal-card h2 {
    margin: 0;
    font-family: "Iowan Old Style", "Palatino Linotype", serif;
    line-height: 0.95;
}

.hero h1 {
    max-width: 13ch;
    font-size: clamp(3rem, 8vw, 6rem);
}

.lede {
    max-width: 46rem;
    margin: 1.5rem 0 0;
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    line-height: 1.7;
    color: var(--muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.primary-action,
.secondary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3.25rem;
    padding: 0.9rem 1.4rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    transition:
        transform 180ms ease,
        box-shadow 180ms ease,
        background-color 180ms ease;
}

.primary-action {
    background: var(--ink);
    color: #fff7f1;
}

.secondary-action {
    border: 1px solid rgba(23, 18, 15, 0.12);
    background: rgba(255, 255, 255, 0.5);
}

.primary-action:hover,
.secondary-action:hover {
    transform: translateY(-1px);
}

.signal-grid {
    display: grid;
    gap: 1.25rem;
    margin-top: 1.4rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.signal-card,
.boundary-panel {
    padding: 1.6rem;
    border: 1px solid var(--line);
    border-radius: 1.5rem;
    background: var(--surface);
}

.signal-card h2 {
    font-size: clamp(1.55rem, 3vw, 2.1rem);
}

.signal-card p:last-child,
.boundary-list {
    margin: 1rem 0 0;
    color: var(--muted);
    line-height: 1.7;
}

.boundary-panel {
    display: grid;
    gap: 1rem;
    margin-top: 1.25rem;
    background: var(--surface-strong);
}

.boundary-panel h2 {
    font-size: clamp(2rem, 4vw, 3.1rem);
}

.boundary-list {
    padding-left: 1.2rem;
}

.boundary-list li + li {
    margin-top: 0.7rem;
}

@media (max-width: 920px) {
    .signal-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .page-shell {
        width: min(100% - 1.25rem, 1120px);
        padding-top: 2rem;
        padding-bottom: 3rem;
    }

    .hero,
    .signal-card,
    .boundary-panel {
        border-radius: 1.3rem;
    }

    .hero {
        padding: 1.4rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .primary-action,
    .secondary-action {
        width: 100%;
    }
}