:root {
    --bg: #f5f1e8;
    --surface: rgba(255, 255, 255, 0.78);
    --surface-solid: #ffffff;
    --ink: #181714;
    --muted: #635f58;
    --line: rgba(73, 67, 57, 0.14);
    --accent: #0f766e;
    --accent-dark: #115e59;
    --warm: #d97706;
    --blue: #1d4ed8;
    --shadow: 0 18px 45px rgba(24, 23, 20, 0.08);
    --radius: 10px;
}

* {
    box-sizing: border-box;
}

html {
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(15, 118, 110, 0.10), transparent 24rem),
        radial-gradient(circle at bottom right, rgba(217, 119, 6, 0.09), transparent 22rem),
        var(--bg);
    font-family: "Inter", system-ui, sans-serif;
}

body {
    margin: 0;
    min-height: 100vh;
}

a,
button {
    font: inherit;
}

.sample-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 16px 30px;
    border-bottom: 1px solid var(--line);
    background: rgba(245, 241, 232, 0.9);
    backdrop-filter: blur(18px);
}

.sample-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    text-decoration: none;
    font-weight: 800;
}

.sample-mark {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: var(--radius);
    background: var(--ink);
    color: #fff;
    font-size: 0.85rem;
}

.sample-header-actions,
.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.primary-link,
.ghost-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 18px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.16s ease, background 0.16s ease;
}

.primary-link {
    background: var(--accent);
    color: #fff;
}

.primary-link:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
}

.ghost-link {
    color: var(--ink);
    background: rgba(255, 255, 255, 0.58);
    border-color: var(--line);
}

.ghost-link:hover {
    background: var(--surface-solid);
    transform: translateY(-1px);
}

.sample-shell {
    width: min(1380px, calc(100vw - 40px));
    margin: 0 auto;
    padding: 42px 0 72px;
}

.sample-hero,
.roi-strip {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: 20px;
    align-items: stretch;
}

.sample-hero {
    margin-bottom: 30px;
}

.sample-hero-copy,
.hero-stat-card,
.demo-card,
.roi-card,
.roi-points,
.sample-footer-cta {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.sample-hero-copy,
.hero-stat-card,
.demo-card,
.roi-card,
.roi-points,
.sample-footer-cta {
    padding: 24px;
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--accent-dark);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    font-family: "Sora", "Inter", sans-serif;
    letter-spacing: 0;
    line-height: 1.02;
}

h1 {
    margin-bottom: 16px;
    font-size: clamp(2.6rem, 5vw, 5rem);
}

h2 {
    margin-bottom: 14px;
    font-size: clamp(1.8rem, 3vw, 2.9rem);
}

h3 {
    margin-bottom: 0;
    font-size: 1.2rem;
}

.hero-text,
.section-copy,
.card-copy,
.roi-points span {
    color: var(--muted);
    line-height: 1.65;
}

.hero-stat-card {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.96)),
        radial-gradient(circle at top right, rgba(29, 78, 216, 0.12), transparent 15rem);
}

.hero-stats {
    display: grid;
    gap: 14px;
}

.hero-stats div {
    display: grid;
    gap: 4px;
    padding: 16px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(29, 78, 216, 0.1);
}

.hero-stats strong {
    font-size: 1.5rem;
}

.hero-stats span {
    color: var(--muted);
}

.sample-scenarios {
    margin-bottom: 30px;
}

.section-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.75fr);
    gap: 20px;
    align-items: end;
    margin-bottom: 18px;
}

.scenario-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}

.scenario-tab {
    min-height: 88px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.58);
    text-align: left;
}

.scenario-tab strong,
.scenario-tab span {
    display: block;
}

.scenario-tab strong {
    margin-bottom: 6px;
    font-size: 1rem;
}

.scenario-tab span {
    color: var(--muted);
    line-height: 1.35;
    font-size: 0.84rem;
}

.scenario-tab[aria-selected="true"] {
    background: var(--ink);
    color: #fff;
    border-color: var(--ink);
}

.scenario-tab[aria-selected="true"] span {
    color: rgba(255, 255, 255, 0.76);
}

.sample-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 18px;
}

.demo-card-large {
    grid-row: span 2;
}

.card-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.chip {
    display: inline-grid;
    place-items: center;
    min-height: 34px;
    padding: 0 12px;
    border-radius: 999px;
    background: #ecfdf3;
    color: #166534;
    font-size: 0.78rem;
    font-weight: 800;
}

.chat-flow {
    display: grid;
    gap: 14px;
}

.chat-bubble {
    max-width: 84%;
    padding: 15px 16px;
    border-radius: 16px;
    line-height: 1.5;
    font-size: 0.95rem;
    box-shadow: 0 8px 22px rgba(24, 23, 20, 0.06);
}

.chat-bubble.customer {
    justify-self: start;
    background: #ffffff;
    border: 1px solid rgba(73, 67, 57, 0.1);
}

.chat-bubble.system {
    justify-self: end;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--blue));
}

.chat-bubble.owner {
    justify-self: start;
    max-width: 100%;
    background: #fff8eb;
    border: 1px solid rgba(217, 119, 6, 0.16);
}

.bubble-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0.78;
}

.detail-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.detail-list li {
    display: grid;
    gap: 4px;
    padding: 12px 14px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(73, 67, 57, 0.08);
}

.detail-list strong {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-list span {
    color: var(--muted);
    line-height: 1.45;
}

.summary-block {
    margin: 0;
    padding: 14px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(73, 67, 57, 0.08);
    white-space: pre-wrap;
    line-height: 1.55;
    font-size: 0.9rem;
}

.roi-strip {
    margin-bottom: 30px;
}

.roi-card {
    background: linear-gradient(180deg, rgba(255,255,255,0.86), rgba(255,255,255,0.95));
}

.roi-points {
    display: grid;
    gap: 14px;
}

.roi-points div {
    display: grid;
    gap: 4px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(73, 67, 57, 0.08);
}

.roi-points div:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.roi-points strong {
    font-family: "Sora", "Inter", sans-serif;
    font-size: 1rem;
}

@media (max-width: 1080px) {
    .sample-hero,
    .roi-strip,
    .section-heading,
    .sample-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 780px) {
    .sample-header {
        padding: 14px 18px;
        align-items: start;
    }

    .sample-shell {
        width: min(100% - 24px, 1380px);
        padding-top: 26px;
    }

    .scenario-tabs {
        grid-template-columns: 1fr;
    }

    .chat-bubble {
        max-width: 100%;
    }

    .primary-link,
    .ghost-link {
        width: 100%;
    }
}