/* Base Variables */
:root {
    --bg-primary: #0A0A0A;
    --bg-secondary: #141414;
    --bg-surface: #1A1A1A;
    --bg-elevated: #252525;
    --text-primary: #F5F5F5;
    --text-secondary: #A3A3A3;
    --text-muted: #737373;
    --accent: #1E40AF;
    --accent-hover: #1E3A8A;
    --accent-glow: rgba(30, 64, 175, 0.15);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.display-xl {
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.display-lg {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 700;
}

.display-md {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
}

.text-lg {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
}

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

.text-muted {
    color: var(--text-muted);
}

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

/* Layout */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem);
}

.section {
    padding: clamp(4rem, 10vw, 8rem) 0;
}

.section-sm {
    padding: clamp(3rem, 6vw, 5rem) 0;
}

/* Section Headers */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 1rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
}