:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-ghost: rgba(37, 99, 235, 0.08);
    --dark: #0f172a;
    --text: #475569;
    --text-secondary: #64748b;
    --light: #f8fafc;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --white: #ffffff;
    --accent-light: #eff6ff;
    --error: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --surface-soft: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.98));
    --surface-accent:
        radial-gradient(circle at top right, rgba(16, 185, 129, 0.12), transparent 24%),
        radial-gradient(circle at left center, rgba(37, 99, 235, 0.1), transparent 32%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.98));
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 24px 50px -30px rgba(15, 23, 42, 0.35);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background: var(--bg);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.accent {
    color: var(--primary);
}

.surface-card {
    background: var(--surface-soft);
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.surface-card-accent {
    background: var(--surface-accent);
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.eyebrow {
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.section-heading {
    font-size: clamp(30px, 4vw, 42px);
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--dark);
}

.section-copy {
    margin-top: 10px;
    color: var(--text);
    font-size: 15px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.74);
    color: var(--text-secondary);
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: 0 10px 30px -26px rgba(15, 23, 42, 0.55);
}

.header,
.navbar {
    min-height: 80px;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px -20px rgba(15, 23, 42, 0.35);
}

.header-container,
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -1px;
    text-decoration: none;
}

.logo:hover {
    color: var(--primary);
}

.nav,
.nav-menu {
    display: flex;
    gap: 20px;
    list-style: none;
    align-items: center;
}

.nav a,
.nav-menu a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 15px;
    transition: 0.2s ease;
    padding: 8px 12px;
    border-radius: 999px;
}

.nav a:hover,
.nav-menu a:hover {
    color: var(--primary);
    background: var(--primary-ghost);
}

.nav a.active,
.nav-menu a.active {
    color: var(--primary-dark);
    background: rgba(37, 99, 235, 0.12);
}

.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.hero {
    padding: 100px 0;
    background: linear-gradient(180deg, #fff 0%, var(--light) 100%);
    text-align: center;
}

.hero-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-content {
    max-width: 800px;
    margin-bottom: 60px;
}

.hero h1 {
    font-size: clamp(36px, 6vw, 64px);
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 24px;
}

.hero p {
    font-size: 20px;
    color: var(--text);
    margin-bottom: 40px;
}

.hero-image-wrap {
    width: 100%;
    max-width: 1000px;
}

.hero-img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12);
    border: 1px solid var(--border);
}