/* ==========================================================================
   C.R.E.E.D. Institute — Base Styles
   Design tokens, reset, utilities, ambient layers
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-base:         #0a0a1a;
    --color-primary:      #c9a44c;
    --color-secondary:    #00e5ff;
    --color-accent:       #e8e8e8;
    --color-text:         #e0e0e0;
    --color-text-muted:   #888;
    --color-border:       rgba(201, 164, 76, 0.15);
    --color-glass-bg:     rgba(10, 10, 30, 0.3);
    --color-glass-border: rgba(201, 164, 76, 0.1);

    /* Typography */
    --font-nav:     'Antonio', sans-serif;
    --font-heading: 'Orbitron', sans-serif;
    --font-body:    'IBM Plex Mono', monospace;

    /* Font sizes */
    --text-xs:   0.75rem;
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.25rem;
    --text-2xl:  1.5rem;
    --text-3xl:  2rem;
    --text-4xl:  2.5rem;
    --text-hero: clamp(2.5rem, 6vw, 5rem);

    /* Spacing */
    --space-xs:      0.25rem;
    --space-sm:      0.5rem;
    --space-md:      1rem;
    --space-lg:      1.5rem;
    --space-xl:      2rem;
    --space-2xl:     3rem;
    --space-3xl:     4rem;
    --space-section: 8rem;

    /* Layout */
    --max-width:     1200px;
    --nav-height:    80px;
    --border-radius: 12px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --speed-fast:   0.15s;
    --speed-medium: 0.3s;
    --speed-slow:   0.6s;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--speed-fast) ease;
}

a:hover {
    color: var(--color-secondary);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
}

img, svg, video, canvas {
    display: block;
    max-width: 100%;
}

button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: var(--space-lg);
}

.section {
    padding-block: var(--space-section);
    position: relative;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   Aurora Background (Gold + Teal)
   -------------------------------------------------------------------------- */
.aurora {
    position: fixed;
    inset: 0;
    z-index: -3;
    overflow: hidden;
    pointer-events: none;
}

.aurora::before,
.aurora::after {
    content: '';
    position: absolute;
    width: 120%;
    height: 120%;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: aurora-drift 20s ease-in-out infinite alternate;
}

.aurora::before {
    background: radial-gradient(ellipse at 30% 40%, var(--color-primary), transparent 70%);
    top: -30%;
    left: -20%;
}

.aurora::after {
    background: radial-gradient(ellipse at 70% 60%, var(--color-secondary), transparent 70%);
    bottom: -30%;
    right: -20%;
    animation-delay: -10s;
    animation-direction: alternate-reverse;
}

@keyframes aurora-drift {
    0%   { transform: translate(0, 0) scale(1); }
    50%  { transform: translate(3%, -2%) scale(1.05); }
    100% { transform: translate(-2%, 3%) scale(0.95); }
}

/* --------------------------------------------------------------------------
   Dot Grid
   -------------------------------------------------------------------------- */
.dot-grid {
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
    background-size: 32px 32px;
}

/* --------------------------------------------------------------------------
   Noise Overlay
   -------------------------------------------------------------------------- */
.noise-overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    pointer-events: none;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* --------------------------------------------------------------------------
   Cursor Glow (Gold)
   -------------------------------------------------------------------------- */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(201, 164, 76, 0.08), transparent 70%);
    pointer-events: none;
    z-index: 9997;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity var(--speed-medium) ease;
    will-change: transform;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* --------------------------------------------------------------------------
   Selection
   -------------------------------------------------------------------------- */
::selection {
    background-color: var(--color-primary);
    color: var(--color-base);
}

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