/**
 * Base Styles - Reset, Typography, and Layout
 */

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

/* Body */
body {
    font-family: var(--font-primary);
    background: var(--color-bg-dark);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 50, 50, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 165, 0, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 0, 100, 0.1) 0%, transparent 40%),
        linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-medium) 100%);
    min-height: 100vh;
    padding: var(--spacing-lg);
    color: var(--color-text-primary);
    position: relative;
    overflow-x: hidden;
}

/* Grid overlay effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(0deg, rgba(255,255,255,0.03) 0px, transparent 1px, transparent 2px, rgba(255,255,255,0.03) 3px),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.03) 0px, transparent 1px, transparent 2px, rgba(255,255,255,0.03) 3px);
    pointer-events: none;
    z-index: var(--z-base);
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    position: relative;
    z-index: calc(var(--z-base) + 1);
    padding: 0 var(--spacing-lg);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.header__title {
    font-family: var(--font-display);
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-black);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: var(--shadow-glow);
    letter-spacing: 2px;
    animation: pulse 2s ease-in-out infinite;
}

.header__subtitle {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 1px;
    opacity: 0.8;
}

/* Two-column layout */
.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* Section titles */
.section-title {
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-primary-light);
    font-weight: var(--font-weight-bold);
}

.section-title--warning {
    color: var(--color-warning);
}

/* Responsive */
@media (max-width: 1200px) {
    .two-column-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header__title {
        font-size: var(--font-size-3xl);
    }
    
    body {
        padding: var(--spacing-sm);
    }
}