/* ========================================
   NEBULA:FOG:PROTOCOL 2026
   Shared Styles - Common across all pages
   ======================================== */

/* ========================================
   CSS CUSTOM PROPERTIES
   ======================================== */
:root {
    /* Core Colors - Standardized across all pages */
    --color-bg: #030303;
    --color-bg-elevated: #0a0a0a;
    --color-primary: #00ff9f;
    --color-secondary: #ff0080;
    --color-accent: #0ff;
    --color-warning: #ff3d00;
    --color-text: #ffffff;
    --color-text-muted: #999999;
    --color-text-dim: #555555;
    /* Status Colors */
    --color-error: #ff4444;
    --color-success: #00ff9f;
    /* Track Colors */
    --color-track-red: #ff4444;
    --color-track-blue: #4488ff;
    --color-track-cyan: #0ff;
    --color-track-purple: #aa44ff;
    /* Typography */
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
    --font-display: 'Space Grotesk', system-ui, sans-serif;
    /* Animation */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: var(--font-mono);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
    -webkit-font-smoothing: antialiased;
}

::selection { background: var(--color-primary); color: var(--color-bg); }

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

/* ========================================
   CUSTOM CURSOR
   ======================================== */
.cursor { position: fixed; pointer-events: none; z-index: 99999; mix-blend-mode: difference; }
.cursor-dot { width: 8px; height: 8px; background: var(--color-primary); border-radius: 50%; transform: translate(-50%, -50%); }
.cursor-ring { width: 40px; height: 40px; border: 1px solid var(--color-primary); border-radius: 50%; transform: translate(-50%, -50%); transition: all 0.15s var(--ease-out-expo); }
.cursor-ring.hover { width: 60px; height: 60px; border-color: var(--color-secondary); }
.cursor-ring.clicking { transform: translate(-50%, -50%) scale(0.8); }

/* ========================================
   PARTICLES CANVAS
   ======================================== */
.particles-canvas { position: fixed; inset: 0; pointer-events: none; z-index: 1; }

/* ========================================
   GRID BACKGROUND & EFFECTS
   ======================================== */
.grid-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    background-image:
        linear-gradient(rgba(0, 255, 159, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 159, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(0deg,
        transparent, transparent 2px,
        rgba(0, 0, 0, 0.1) 2px, rgba(0, 0, 0, 0.1) 4px);
    opacity: 0.15;
}

/* ========================================
   HUD NAVIGATION
   ======================================== */
.hud-nav {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 10px 20px;
    background: rgba(3, 3, 3, 0.85);
    border: 1px solid rgba(0, 255, 159, 0.2);
    border-radius: 4px;
    backdrop-filter: blur(15px);
}

.hud-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-right: 15px;
    border-right: 1px solid rgba(0, 255, 159, 0.2);
    font-size: 0.75rem;
    color: var(--color-primary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-primary);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hud-links {
    display: flex;
    gap: 1rem;
    list-style: none;
}

.hud-link {
    color: var(--color-text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.hud-link:hover, .hud-link.active {
    color: var(--color-primary);
    text-shadow: 0 0 10px var(--color-primary);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: 60px 5vw;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.footer-text {
    color: var(--color-text-dim);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

/* ========================================
   MOBILE NAV
   ======================================== */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(3, 3, 3, 0.95);
    border-top: 1px solid var(--color-text-dim);
    padding: 0.5rem 0;
    padding-bottom: max(0.5rem, env(safe-area-inset-bottom));
    z-index: 1000;
    backdrop-filter: blur(15px);
}

.mobile-nav-links {
    display: flex;
    justify-content: space-around;
    list-style: none;
}

.mobile-nav-links a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.75rem 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    min-height: 44px; /* WCAG AAA touch target */
    transition: color 0.3s ease;
}

.mobile-nav-links a i {
    font-size: 1.1rem;
}

.mobile-nav-links a.active,
.mobile-nav-links a:hover {
    color: var(--color-primary);
}

/* ========================================
   COMMON PAGE ELEMENTS
   ======================================== */
.main {
    padding: 120px 5vw 80px;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

.page-header {
    text-align: center;
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(40px);
}

.page-tag {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--color-text-dim);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.page-title {
    font-family: var(--font-mono);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-primary);
    text-shadow: 0 0 40px rgba(0, 255, 159, 0.3);
}

/* ========================================
   RESPONSIVE - MOBILE
   ======================================== */
@media (max-width: 768px) {
    body { cursor: auto; }
    .cursor, .cursor-dot, .cursor-ring { display: none !important; }
    .particles-canvas { display: none !important; }

    .hud-nav {
        display: none;
    }

    .mobile-nav {
        display: block;
    }

    .main {
        padding-bottom: calc(100px + env(safe-area-inset-bottom));
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}