/* Global Resets, Typography & Utilities */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--background);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--text-light-muted);
    border-radius: var(--radius-full);
    border: 3px solid var(--background);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--secondary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Sections */
section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.section-dark {
    background-color: var(--bg-dark);
    color: var(--text-light);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--text-light);
}

.section-dark p {
    color: var(--text-light-muted);
}

/* Header Text / Section Headings */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-header .badge {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    margin-top: 16px;
}

/* Utilities */
.text-gradient-primary {
    background: var(--gradient-blue-purple);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.text-gradient-accent {
    background: var(--gradient-indigo-cyan);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.badge-glass-primary {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.badge-glass-accent {
    background: rgba(20, 184, 166, 0.1);
    color: var(--accent);
    border: 1px solid rgba(20, 184, 166, 0.2);
}

.badge-glass-white {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}

/* Overlay */
.overlay-dark {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(9, 13, 26, 0.4) 0%, rgba(9, 13, 26, 0.95) 100%);
    z-index: 1;
}

/* Lazy Loading Transition */
.lazy-img {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.lazy-img.loaded {
    opacity: 1;
}