:root {
    --font-body: "Trebuchet MS", "Lucida Sans Unicode", sans-serif;
    --font-heading: Georgia, "Palatino Linotype", serif;
    --page-background: #f4efe6;
    --panel-background: rgba(255, 255, 255, 0.72);
    --panel-border: rgba(48, 37, 29, 0.1);
    --text-strong: #1f1a17;
    --text-muted: #5d544d;
    --primary: #b55d3d;
    --primary-strong: #8c442a;
    --secondary: rgba(255, 255, 255, 0.18);
    --secondary-border: rgba(48, 37, 29, 0.14);
    --shadow-soft: 0 24px 70px rgba(30, 23, 19, 0.14);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-body);
    color: var(--text-strong);
    background: var(--page-background);
    position: relative;
    overflow-x: hidden;
}

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

p,
li {
    color: var(--text-muted);
    line-height: 1.65;
}

h1,
h2,
h3,
strong {
    color: var(--text-strong);
}

h1,
h2,
h3 {
    margin: 0;
    font-family: var(--font-heading);
    line-height: 1.05;
}

.page-backdrop {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.8), transparent 28%),
        radial-gradient(circle at bottom right, rgba(222, 185, 152, 0.24), transparent 24%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(0, 0, 0, 0));
    pointer-events: none;
}

.topbar,
.page-shell {
    position: relative;
    z-index: 1;
}

.topbar {
    width: min(1180px, calc(100% - 32px));
    margin: 20px auto 0;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 1px solid var(--panel-border);
    border-radius: 22px;
    background: var(--panel-background);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #fff8f1;
    font-weight: 700;
}

.brand-copy {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.brand-copy strong {
    font-size: 0.98rem;
}

.brand-copy span:last-child {
    font-size: 0.84rem;
    color: var(--text-muted);
}

.topnav {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.topnav a {
    padding: 9px 13px;
    border-radius: 999px;
    color: var(--text-muted);
    transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.topnav a:hover {
    background: rgba(255, 255, 255, 0.42);
    color: var(--text-strong);
    transform: translateY(-1px);
}

.page-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 28px auto 64px;
    display: grid;
    gap: 28px;
}

.session-banner,
.auth-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    border: 1px solid var(--panel-border);
    border-radius: 22px;
    background: var(--panel-background);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
}

.session-banner > div,
.auth-banner > div {
    display: grid;
    gap: 6px;
}

.session-banner strong,
.auth-banner p {
    margin: 0;
}

.role-pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.role-pill {
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.58);
    border: 1px solid var(--secondary-border);
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 700;
}

.auth-banner {
    background: rgba(255, 250, 227, 0.78);
}

.hero {
    display: grid;
    gap: 24px;
    align-items: center;
}

.hero-copy {
    display: grid;
    gap: 18px;
}

.eyebrow,
.card-kicker,
.preview-label,
.pill,
.board-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
    padding: 8px 12px;
    border-radius: 999px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.73rem;
    font-weight: 700;
}

.eyebrow,
.pill,
.board-badge {
    background: rgba(255, 255, 255, 0.54);
    color: var(--primary-strong);
}

.lead {
    margin: 0;
    max-width: 640px;
    font-size: 1.07rem;
}

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

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 18px;
    border-radius: 14px;
    border: 1px solid transparent;
    font-weight: 700;
    transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(30, 23, 19, 0.12);
}

.button-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #fff8f1;
}

.button-secondary {
    background: var(--secondary);
    border-color: var(--secondary-border);
}

.section-grid {
    display: grid;
    gap: 18px;
}

.three-up {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.two-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.preview-card,
.phone-frame,
.control-board,
.highlight-band {
    border: 1px solid var(--panel-border);
    background: var(--panel-background);
    border-radius: 28px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
}

.card,
.highlight-band {
    padding: 26px;
}

.card {
    display: grid;
    gap: 12px;
}

.card h2,
.card h3 {
    font-size: 1.65rem;
}

.highlight-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.feature-list {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 10px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.detail-card {
    padding: 22px;
    border-radius: 24px;
    border: 1px solid var(--panel-border);
    background: var(--panel-background);
    box-shadow: var(--shadow-soft);
    display: grid;
    gap: 10px;
}

.status-list,
.checkpoint-list {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 10px;
}

.empty-state {
    padding: 30px;
    border-radius: 28px;
    border: 1px dashed var(--secondary-border);
    background: rgba(255, 255, 255, 0.26);
    display: grid;
    gap: 12px;
}

.reveal-delay-1,
.reveal-delay-2,
.reveal-delay-3 {
    opacity: 0;
    transform: translateY(18px);
    animation: rise-in 700ms ease forwards;
}

.reveal-delay-2 {
    animation-delay: 120ms;
}

.reveal-delay-3 {
    animation-delay: 220ms;
}

@keyframes rise-in {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 920px) {
    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .three-up,
    .two-up,
    .detail-grid,
    .hero,
    .highlight-band {
        grid-template-columns: 1fr;
    }

    .highlight-band {
        align-items: flex-start;
    }

    .session-banner,
    .auth-banner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .page-shell,
    .topbar {
        width: min(100% - 20px, 1180px);
    }

    h1 {
        font-size: 2.5rem;
    }

    .topnav {
        width: 100%;
    }

    .topnav a {
        flex: 1 1 auto;
        text-align: center;
    }
}