/* ============================================================================
   NEXUS Alliance Portal - Base Reset & Typography
   ============================================================================ */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(201, 168, 76, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(201, 168, 76, 0.02) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(17, 24, 39, 0.8) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text-gold);
    line-height: var(--leading-tight);
    font-weight: 600;
}

h1 { font-size: var(--text-4xl); margin-bottom: var(--space-6); }
h2 { font-size: var(--text-3xl); margin-bottom: var(--space-5); }
h3 { font-size: var(--text-2xl); margin-bottom: var(--space-4); }
h4 { font-size: var(--text-xl); margin-bottom: var(--space-3); }
h5 { font-size: var(--text-lg); margin-bottom: var(--space-2); }

p {
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-gold);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover {
    color: var(--color-gold-light);
}

strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

ul, ol { list-style: none; }

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

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

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--color-gold-dark);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-gold);
}

/* ---- Utility classes ---- */
.text-gold { color: var(--color-text-gold); }
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.text-lg { font-size: var(--text-lg); }

.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;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ---- Animations ---- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes goldGlow {
    0%, 100% { box-shadow: 0 0 5px var(--color-gold-glow); }
    50% { box-shadow: 0 0 20px var(--color-gold-glow), 0 0 40px rgba(201, 168, 76, 0.1); }
}

.animate-fade-in {
    animation: fadeIn var(--transition-base) forwards;
}
.animate-fade-in-up {
    animation: fadeInUp 0.5s ease forwards;
}

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-bg-card-hover) 50%, var(--color-bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}