:root {
    color-scheme: light;
    --bg: #f4f8ff;
    --bg-bottom: #eaf0fb;
    --orb-one: rgba(91, 140, 255, 0.18);
    --orb-two: rgba(101, 214, 173, 0.14);
    --panel: rgba(255, 255, 255, 0.84);
    --panel-border: rgba(65, 92, 154, 0.14);
    --text: #122038;
    --muted: #5f7090;
    --primary: #4f7dff;
    --primary-strong: #2f64ff;
    --warning-bg: rgba(255, 211, 106, 0.18);
    --warning-border: rgba(201, 145, 0, 0.26);
    --warning-text: #7a5700;
    --button-border: rgba(17, 24, 39, 0.08);
    --button-secondary-bg: rgba(17, 24, 39, 0.04);
    --shadow: 0 24px 80px rgba(45, 65, 120, 0.16);
}

html[data-theme="dark"] {
    color-scheme: dark;
    --bg: #07111f;
    --bg-bottom: #040914;
    --orb-one: rgba(91, 140, 255, 0.2);
    --orb-two: rgba(101, 214, 173, 0.14);
    --panel: rgba(12, 24, 45, 0.82);
    --panel-border: rgba(157, 178, 255, 0.16);
    --text: #ebf2ff;
    --muted: #9eb3d9;
    --primary: #84a8ff;
    --primary-strong: #5b8cff;
    --warning-bg: rgba(255, 211, 106, 0.08);
    --warning-border: rgba(255, 211, 106, 0.16);
    --warning-text: #ffe8a6;
    --button-border: rgba(255, 255, 255, 0.08);
    --button-secondary-bg: rgba(255, 255, 255, 0.04);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, var(--orb-one), transparent 28%),
        radial-gradient(circle at top right, var(--orb-two), transparent 22%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-bottom) 100%);
    min-height: 100vh;
}

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

.shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px 72px;
}

.hero {
    display: grid;
    grid-template-columns: 1.25fr 0.95fr;
    gap: 24px;
    align-items: stretch;
    max-width: 980px;
    margin: 0 auto;
}

.hero-card,
.panel {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 24px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

.hero-card {
    padding: 36px;
}

.hero-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.eyebrow {
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1 {
    margin: 14px 0 14px;
    font-size: clamp(2.4rem, 5vw, 4.4rem);
    line-height: 0.95;
    letter-spacing: -0.04em;
}

.lede {
    max-width: 48rem;
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.65;
    margin-bottom: 28px;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border-radius: 10px;
    /* border-radius: 999px; */
    /* border: 1px solid var(--button-border); */
    border: 0;
    font-weight: 600;
    gap: 6px;
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.button:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.18);
}

.button.primary {
    background: linear-gradient(135deg, var(--primary-strong), var(--primary));
    color: white;
    border: none;
}

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

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border-radius: 999px;
    border: 1px solid var(--button-border);
    background: var(--button-secondary-bg);
    color: var(--text);
    padding: 10px 14px;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: rgba(95, 124, 196, 0.32);
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--muted);
    font-size: 0.92rem;
}

.hero-side {
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hero-side h2,
.section-title {
    margin: 0 0 14px;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

.hero-side ol {
    margin: 0;
    padding-left: 20px;
    color: var(--muted);
    line-height: 1.8;
}

.warning {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 16px;
    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
    color: var(--warning-text);
    font-size: 0.95rem;
    line-height: 1.55;
}

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

    .hero-header {
        flex-direction: column;
        align-items: stretch;
    }
}