/* Premium DTC Design System */
:root {
    --bg-primary: #F8F9FA;
    --bg-secondary: #FFFFFF;
    --brand-dark: #1A1A1A;
    --brand-slate: #4A5568;
    --brand-accent: #2C5282; /* Deep Navy for trust */
    --text-main: #2D3748;
    --text-muted: #718096;
    --border-color: #E2E8F0;
    --white: #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --font-main: 'Inter', -apple-system, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-main);
    line-height: 1.5;
}

/* Typography Overhaul */
h1, h2, h3 {
    color: var(--brand-dark);
    letter-spacing: -0.02em;
    font-weight: 800;
}

h1 { font-size: clamp(2rem, 8vw, 3.5rem); line-height: 1.1; }
h2 { font-size: clamp(1.5rem, 5vw, 2.25rem); line-height: 1.2; }

/* Premium Grid & Containers */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 80px 0;
}

/* DTC Style Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 14px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--brand-dark);
    color: var(--white);
    border: 2px solid var(--brand-dark);
}

.btn-primary:hover {
    background-color: #333;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--brand-dark);
}

.btn-outline:hover {
    border-color: var(--brand-dark);
}

/* Navigation - Modern Fixed */
nav {
    height: 72px;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: inherit;
    font-weight: 800;
    font-size: 22px;
    color: var(--brand-dark);
    letter-spacing: -1.5px;
}

/* Hero Section Refinement */
.hero {
    background: var(--bg-secondary);
    padding: 100px 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

@media (max-width: 991px) {
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
}

/* Card Styling - Grounded, not 'floaty' */
.card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: border-color 0.2s ease;
}

.card:hover {
    border-color: var(--brand-slate);
}