/**
 * TRACE Protocol Design System
 * Version: 1.0
 * Based on: trace-pvp-mockup.html + TRACE_Protocol_Brand_Guide.html
 */

/* ============================================
   CSS VARIABLES / DESIGN TOKENS
============================================ */
:root {
    /* TRACE Signature Colors */
    --trace-gold: #d4af37;
    --trace-gold-light: #e8c547;
    --trace-gold-dark: #b8960c;
    --trace-gold-matte: #d4a017;
    --trace-gold-glow: rgba(212, 175, 55, 0.4);
    --trace-gold-subtle: rgba(212, 175, 55, 0.1);
    --trace-gold-border: rgba(212, 175, 55, 0.15);

    /* XDRIP Brand Colors */
    --xdrip-black: #0a0a0a;
    --xdrip-dark: #141414;
    --xdrip-gray: #1a1a1c;
    --xdrip-gray-light: #262628;
    --xdrip-blue: #0271FC;
    --xdrip-white: #F9F9F9;

    /* Background Colors */
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1c;
    --border-subtle: rgba(212, 175, 55, 0.1);

    /* Text Colors */
    --text-primary: #F9F9F9;
    --text-secondary: #E8D9A0;
    --text-muted: #6D7D92;
    --text-gold: #d4af37;

    /* Status Colors */
    --success: #00ff88;
    --success-dark: #00cc6a;
    --success-subtle: rgba(0, 255, 136, 0.1);
    --warning: #fbbf24;
    --warning-subtle: rgba(251, 191, 36, 0.1);
    --danger: #ef4444;
    --danger-subtle: rgba(239, 68, 68, 0.1);
    --info: #0271FC;
    --info-subtle: rgba(2, 113, 252, 0.1);

    /* Glass Effect */
    --glass-bg: rgba(26, 26, 28, 0.85);
    --glass-bg-solid: rgba(26, 26, 28, 0.95);
    --glass-border: rgba(212, 175, 55, 0.15);
    --glass-blur: 20px;

    /* Typography */
    --font-display: 'Montserrat', -apple-system, sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    --font-accent: 'Saira', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 100px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-gold: 0 4px 20px var(--trace-gold-glow);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-popover: 400;
    --z-tooltip: 500;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--xdrip-black);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================
   BACKGROUND EFFECTS
============================================ */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(2, 113, 252, 0.03) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(212, 175, 55, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(212, 175, 55, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

/* Backdrop Image */
.bg-backdrop,
body.with-backdrop::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://media.xdripia.com/assets/banners/traceProtocol_backdrop.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.12;
    z-index: 0;
    pointer-events: none;
}

/* ============================================
   TYPOGRAPHY
============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
}

h1 { font-size: clamp(32px, 5vw, 48px); }
h2 { font-size: clamp(24px, 4vw, 36px); }
h3 { font-size: clamp(18px, 3vw, 24px); }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }

.text-gold { color: var(--trace-gold); }
.text-light { font-weight: 300; color: var(--trace-gold); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.font-mono { font-family: var(--font-mono); }
.font-display { font-family: var(--font-display); }
.font-accent { font-family: var(--font-accent); }

/* Font Weights */
.font-light { font-weight: 300; }
.font-regular { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-black { font-weight: 800; }

/* ============================================
   BRAND NAME TYPOGRAPHY
   Usage: <span class="brand-name"><span class="bold">TRACE</span> <span class="light">Protocol</span></span>
============================================ */
.brand-name {
    font-family: var(--font-display);
    letter-spacing: -0.01em;
}

.brand-name .bold {
    font-weight: 700;
    color: var(--text-primary);
}

.brand-name .light {
    font-weight: 300;
    color: var(--trace-gold);
}

/* Brand Name Size Variants */
.brand-name.brand-xs { font-size: 14px; }
.brand-name.brand-sm { font-size: 18px; }
.brand-name.brand-md { font-size: 24px; }
.brand-name.brand-lg { font-size: 36px; }
.brand-name.brand-xl { font-size: 48px; }
.brand-name.brand-2xl { font-size: 64px; }
.brand-name.brand-hero { font-size: clamp(48px, 8vw, 84px); }

/* Product/Module Names - Same Pattern */
.product-name {
    font-family: var(--font-display);
    letter-spacing: -0.01em;
}

.product-name .bold {
    font-weight: 700;
    color: var(--text-primary);
}

.product-name .light {
    font-weight: 300;
    color: var(--trace-gold);
}

/* ============================================
   ACCENT / TAGLINE TYPOGRAPHY (Saira)
============================================ */
.tagline {
    font-family: var(--font-accent);
    font-style: italic;
    color: rgba(212, 175, 55, 0.7);
    letter-spacing: 0.05em;
}

.tagline-sm { font-size: 12px; }
.tagline-md { font-size: 14px; }
.tagline-lg { font-size: 16px; }
.tagline-xl { font-size: 20px; }

/* Tagline with gold color */
.tagline-gold {
    font-family: var(--font-accent);
    font-style: italic;
    color: var(--trace-gold);
}

/* Section/Category Labels */
.section-label {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(212, 175, 55, 0.6);
}

/* Display Headlines - Bold/Light Pattern */
.display-heading {
    font-family: var(--font-display);
    line-height: 0.95;
    letter-spacing: -0.02em;
}

.display-heading .bold {
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.display-heading .light {
    font-weight: 300;
    color: var(--trace-gold);
    display: block;
}

.text-uppercase { text-transform: uppercase; letter-spacing: 0.08em; }
.text-center { text-align: center; }
.text-right { text-align: right; }

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

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

a:hover {
    color: var(--trace-gold-light);
}

/* ============================================
   LAYOUT
============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-sm { max-width: 800px; }
.container-lg { max-width: 1400px; }

.section {
    padding: var(--space-3xl) 0;
}

.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { flex-direction: column; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ============================================
   GLASS CARD COMPONENTS
============================================ */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.card-gold {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(212, 175, 55, 0.02) 100%);
    border-color: var(--trace-gold);
}

.card-success {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.08) 0%, rgba(0, 255, 136, 0.02) 100%);
    border-color: rgba(0, 255, 136, 0.3);
}

.card-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.08) 0%, rgba(239, 68, 68, 0.02) 100%);
    border-color: rgba(239, 68, 68, 0.3);
}

.card-header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--glass-border);
}

.card-body {
    padding: var(--space-xl);
}

.card-footer {
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--glass-border);
    background: var(--xdrip-gray-light);
}

/* ============================================
   BUTTONS
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--trace-gold), var(--trace-gold-dark));
    color: var(--xdrip-black);
    border-color: var(--trace-gold);
}

.btn-primary:hover {
    box-shadow: var(--shadow-gold);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--glass-border);
}

.btn-secondary:hover {
    border-color: var(--trace-gold);
    color: var(--trace-gold);
}

.btn-outline {
    background: transparent;
    color: var(--trace-gold);
    border-color: var(--trace-gold);
}

.btn-outline:hover {
    background: var(--trace-gold);
    color: var(--xdrip-black);
    box-shadow: var(--shadow-gold);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), var(--success-dark));
    color: var(--xdrip-black);
}

.btn-danger {
    background: var(--danger);
    color: var(--text-primary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 11px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 14px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
}

/* ============================================
   FORM ELEMENTS
============================================ */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.form-input {
    width: 100%;
    padding: 16px 20px;
    background: var(--xdrip-gray-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    outline: none;
    border-color: var(--trace-gold);
    box-shadow: 0 0 0 4px var(--trace-gold-subtle);
}

.form-input-mono {
    font-family: var(--font-mono);
    font-size: 13px;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%236D7D92' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 20px;
    padding-right: 48px;
}

/* ============================================
   BADGES
============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
}

.badge-gold {
    background: var(--trace-gold-subtle);
    color: var(--trace-gold);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.badge-success {
    background: var(--success-subtle);
    color: var(--success);
}

.badge-warning {
    background: var(--warning-subtle);
    color: var(--warning);
}

.badge-danger {
    background: var(--danger-subtle);
    color: var(--danger);
}

.badge-blue {
    background: var(--info-subtle);
    color: var(--xdrip-blue);
}

/* ============================================
   TABLES
============================================ */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.table th {
    background: var(--trace-gold-subtle);
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--trace-gold);
}

.table td {
    font-size: 14px;
    color: var(--text-secondary);
}

.table tr:hover td {
    background: rgba(212, 175, 55, 0.03);
}

.table code {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--trace-gold);
    background: var(--trace-gold-subtle);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
}

/* ============================================
   HEADER
============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--trace-gold), var(--trace-gold-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-gold);
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--xdrip-black);
}

.logo-text .brand {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.logo-text .sub {
    font-size: 10px;
    font-weight: 500;
    color: var(--trace-gold);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* ============================================
   NAVIGATION
============================================ */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--trace-gold);
    background: var(--trace-gold-subtle);
}

/* ============================================
   STATUS INDICATORS
============================================ */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

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

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--trace-gold-subtle);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    color: var(--trace-gold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ============================================
   HASH/CODE DISPLAY
============================================ */
.hash-display {
    background: var(--xdrip-gray-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 18px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
}

.hash-value {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-primary);
    word-break: break-all;
    line-height: 1.6;
}

.copy-btn {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--xdrip-gray);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.copy-btn:hover {
    background: var(--trace-gold);
    border-color: var(--trace-gold);
}

.copy-btn:hover svg {
    fill: var(--xdrip-black);
}

.copy-btn svg {
    width: 18px;
    height: 18px;
    fill: var(--text-muted);
    transition: fill var(--transition-base);
}

/* ============================================
   DATA GRID
============================================ */
.data-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.data-item {
    background: var(--xdrip-gray-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}

.data-item.full-width {
    grid-column: 1 / -1;
}

.data-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.data-value {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-primary);
    word-break: break-all;
}

.data-value.highlight {
    color: var(--trace-gold);
}

.data-value a {
    color: var(--xdrip-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.data-value a:hover {
    color: var(--trace-gold);
    text-decoration: underline;
}

/* ============================================
   CHAIN BADGE
============================================ */
.chain-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(243, 186, 47, 0.1);
    border: 1px solid rgba(243, 186, 47, 0.3);
    border-radius: var(--radius-sm);
}

.chain-badge img {
    width: 20px;
    height: 20px;
}

.chain-badge span {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    color: #F3BA2F;
}

.chain-badge.polygon {
    background: rgba(130, 71, 229, 0.1);
    border-color: rgba(130, 71, 229, 0.3);
}

.chain-badge.polygon span {
    color: #8247E5;
}

.chain-badge.solana {
    background: rgba(20, 241, 149, 0.1);
    border-color: rgba(20, 241, 149, 0.3);
}

.chain-badge.solana span {
    color: #14F195;
}

/* ============================================
   SECTION TITLES
============================================ */
.section-title {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 700;
    color: var(--trace-gold);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--glass-border), transparent);
}

/* ============================================
   STATS / METRICS
============================================ */
.stat-box {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    background: var(--xdrip-gray);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
}

.stat-value {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 800;
    color: var(--trace-gold);
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

/* ============================================
   FLOW / STEPS
============================================ */
.flow-container {
    display: flex;
    gap: var(--space-lg);
}

.flow-step {
    flex: 1;
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    background: var(--xdrip-gray);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    position: relative;
}

.flow-step::after {
    content: '→';
    position: absolute;
    right: -18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--trace-gold);
    font-size: 20px;
    z-index: 1;
}

.flow-step:last-child::after {
    display: none;
}

.flow-number {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 800;
    color: var(--trace-gold);
    margin-bottom: var(--space-sm);
}

.flow-title {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.4;
    color: var(--text-primary);
}

/* ============================================
   FOOTER
============================================ */
.footer {
    padding: var(--space-xl);
    text-align: center;
    border-top: 1px solid var(--glass-border);
    margin-top: var(--space-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: var(--space-lg);
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--text-muted);
}

.footer-text {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
}

.footer-links a {
    font-size: 12px;
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

/* ============================================
   UTILITIES
============================================ */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

/* ============================================
   ANIMATIONS
============================================ */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

.animate-fade-in { animation: fadeIn 0.5s ease-out; }
.animate-slide-in { animation: slideIn 0.4s ease-out; }

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .container { padding: 0 var(--space-md); }
    .header-inner { padding: 0 var(--space-md); }

    .grid-4,
    .grid-3,
    .grid-2 { grid-template-columns: 1fr; }

    .data-grid { grid-template-columns: 1fr; }
    .flow-container { flex-direction: column; }
    .flow-step::after { display: none; }

    h1 { font-size: 28px; }
    h2 { font-size: 22px; }
}

/* ============================================
   PRINT STYLES
============================================ */
@media print {
    .bg-gradient,
    .bg-grid,
    .header { display: none; }

    body {
        background: white;
        color: black;
    }

    .card {
        background: white;
        border: 1px solid #ddd;
        box-shadow: none;
    }
}