/**
 * Main CSS - Reset, Variables and Base Layout
 */

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

/* CSS Variables */
:root {
    /* PS2 Colors */
    --ps2-blue-dark: #00008B;
    --ps2-blue-mid: #0000CD;
    --ps2-blue-light: #1E90FF;
    --ps2-blue-glow: #00BFFF;
    --ps2-cyan: #00FFFF;

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #B0C4DE;
    --text-accent: #FFD700;

    /* Fonts */
    --font-retro: 'Press Start 2P', cursive;
    --font-modern: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Shadows */
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-strong: 0 20px 60px rgba(0, 0, 0, 0.5);

    /* Glassmorphism */
    --glass-bg: rgba(0, 20, 60, 0.6);
    --glass-border: rgba(0, 150, 255, 0.2);
    --glass-blur: 10px;

    /* Background - PS2 boot screen inspired */
    --bg-gradient: linear-gradient(180deg,
        #000510 0%,
        #001030 30%,
        #001845 50%,
        #001030 70%,
        #000510 100%);
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

html, body {
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-modern);
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* PS2 style animated background particles */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        radial-gradient(2px 2px at 20% 30%, rgba(0, 150, 255, 0.3), transparent),
        radial-gradient(2px 2px at 40% 70%, rgba(0, 100, 200, 0.2), transparent),
        radial-gradient(1px 1px at 60% 20%, rgba(100, 200, 255, 0.3), transparent),
        radial-gradient(2px 2px at 80% 50%, rgba(0, 150, 255, 0.2), transparent),
        radial-gradient(1px 1px at 10% 80%, rgba(0, 200, 255, 0.3), transparent),
        radial-gradient(2px 2px at 90% 90%, rgba(50, 150, 255, 0.2), transparent),
        radial-gradient(1px 1px at 50% 10%, rgba(0, 150, 255, 0.4), transparent),
        radial-gradient(1px 1px at 30% 50%, rgba(100, 200, 255, 0.2), transparent),
        radial-gradient(2px 2px at 70% 80%, rgba(0, 100, 200, 0.3), transparent),
        radial-gradient(1px 1px at 15% 15%, rgba(0, 200, 255, 0.2), transparent);
    background-size: 100% 100%;
    animation: particles 20s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes particles {
    0% { opacity: 0.5; transform: translateY(var(--parallax-offset, 0)); }
    50% { opacity: 0.8; }
    100% { opacity: 0.5; transform: translateY(calc(var(--parallax-offset, 0) - 20px)); }
}

/* Main Container */
.main-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-accent { color: var(--text-accent); }
.text-muted { color: var(--text-secondary); }

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

::-webkit-scrollbar-track {
    background: rgba(0, 20, 60, 0.5);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--ps2-blue-mid), var(--ps2-blue-dark));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--ps2-blue-light), var(--ps2-blue-mid));
}

/* Selection */
::selection {
    background: var(--ps2-blue-mid);
    color: var(--text-primary);
}

/* Links base */
a {
    color: var(--ps2-blue-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--ps2-blue-glow);
}

/* ========== SCANLINES OVERLAY (CRT Effect) ========== */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.15) 2px,
        rgba(0, 0, 0, 0.15) 4px
    );
    pointer-events: none;
    z-index: 9999;
    opacity: 0.4;
}

/* ========== PARALLAX PARTICLES ========== */
.parallax-layer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.parallax-layer--back {
    animation: parallax-slow 30s linear infinite;
}

.parallax-layer--front {
    animation: parallax-fast 15s linear infinite;
}

@keyframes parallax-slow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-30px); }
}

@keyframes parallax-fast {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}