/* ============================================
   BASE STYLES - Reset & Foundation
   ============================================ */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

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

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

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

ul, ol {
    list-style: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
}

/* Section Base */
.section {
    position: relative;
    padding: var(--space-section) 0;
    overflow: hidden;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    position: relative;
    z-index: var(--z-content);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
}

.section-icon {
    color: var(--color-royal-blue);
    margin-bottom: var(--space-md);
    display: inline-block;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    color: var(--color-navy);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    font-family: var(--font-sans);
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    margin-top: var(--space-md);
    font-weight: 300;
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.glass-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Particles Container */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: var(--z-particles);
    overflow: hidden;
}

/* Selection Color */
::selection {
    background: rgba(10, 77, 255, 0.2);
    color: var(--color-navy);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-royal-blue-light);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-royal-blue);
}