/* ===== CSS Variables ===== */
:root {
    --navy: #0f2b46;
    --navy-light: #1a3d5c;
    --blue: #2563eb;
    --blue-light: #3b82f6;
    --blue-pale: #eff6ff;
    --blue-glow: rgba(37, 99, 235, 0.12);
    --accent: #0ea5e9;
    --text: #1e293b;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-off: #f8fafc;
    --bg-card: #ffffff;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 1px 3px rgba(15, 43, 70, 0.06), 0 8px 32px rgba(15, 43, 70, 0.04);
    --shadow-lg: 0 4px 12px rgba(15, 43, 70, 0.08), 0 24px 64px rgba(15, 43, 70, 0.06);
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    line-height: 1.2;
    font-weight: 700;
}

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

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

/* ===== Utility ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--blue);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--navy);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 640px;
}

.hero-title-accent {
    color: var(--blue);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.25s ease;
}

.btn-primary {
    background: var(--blue);
    color: #fff;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    background: var(--blue-light);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--navy);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--blue);
    color: var(--blue);
    transform: translateY(-2px);
}

.btn-white {
    background: #fff;
    color: var(--navy);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* ===== Scroll Reveal Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ===== Hero Slide In ===== */
.slide-in-right {
    opacity: 0;
    transform: translateX(60px);
    transition: opacity 0.8s ease 0.3s, transform 0.8s ease 0.3s;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .section-title {
        font-size: 1.875rem;
    }

    .section-desc {
        font-size: 1rem;
    }

    .container {
        padding: 0 16px;
    }
}