/* ============================================
   BLACKBOOK NETWORK - ELITE LUXURY DESIGN
   Matte Black Titanium | Carbon Fiber | Gold Accents
   ============================================ */

:root {
    /* Color Palette */
    --black-titanium: #0a0a0a;
    --carbon-black: #121212;
    --deep-black: #000000;
    --gold-accent: #d4af37;
    --gold-light: #f4e5c2;
    --gold-dark: #b8941f;
    --silver-mist: #8a8a8a;
    --white-pearl: #fafafa;
    --border-subtle: rgba(212, 175, 55, 0.15);
    --shadow-gold: rgba(212, 175, 55, 0.3);
    
    /* Typography */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background: var(--black-titanium);
    color: var(--white-pearl);
    line-height: 1.6;
    overflow-x: hidden;
    font-weight: 300;
    letter-spacing: 0.3px;
}

/* Carbon Fiber Background Texture */
.carbon-fiber-bg {
    background: 
        linear-gradient(27deg, #151515 5px, transparent 5px) 0 5px,
        linear-gradient(207deg, #151515 5px, transparent 5px) 10px 0px,
        linear-gradient(27deg, #222 5px, transparent 5px) 0px 10px,
        linear-gradient(207deg, #222 5px, transparent 5px) 10px 5px,
        linear-gradient(90deg, #1b1b1b 10px, transparent 10px),
        linear-gradient(#1d1d1d 25%, #1a1a1a 25%, #1a1a1a 50%, transparent 50%, transparent 75%, #242424 75%, #242424);
    background-color: #131313;
    background-size: 20px 20px;
}

/* ============================================
   NAVIGATION
   ============================================ */

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.8);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--gold-accent);
    letter-spacing: 3px;
    text-shadow: 0 0 20px var(--shadow-gold);
}

.logo-sub {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 300;
    color: var(--silver-mist);
    letter-spacing: 4px;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    gap: 3rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--silver-mist);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold-accent);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-gold {
    color: var(--gold-accent);
    font-weight: 600;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
    color: var(--white-pearl);
}

h1 {
    font-size: 4.5rem;
    letter-spacing: 6px;
    color: var(--gold-accent);
    text-shadow: 0 0 40px var(--shadow-gold);
}

h2 {
    font-size: 3rem;
    letter-spacing: 4px;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.8rem;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

h4 {
    font-size: 1.3rem;
    letter-spacing: 1px;
}

p {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.8;
    color: var(--silver-mist);
}

.microtext {
    font-size: 0.7rem;
    font-weight: 300;
    letter-spacing: 1px;
    color: var(--silver-mist);
    opacity: 0.7;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    padding: 1rem 2.5rem;
    border: none;
    cursor: pointer;
    transition: all 0.4s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold-accent), var(--gold-dark));
    color: var(--deep-black);
    box-shadow: 0 8px 30px var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px var(--shadow-gold);
}

.btn-secondary {
    background: transparent;
    color: var(--gold-accent);
    border: 2px solid var(--gold-accent);
}

.btn-secondary:hover {
    background: var(--gold-accent);
    color: var(--deep-black);
}

.btn-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="45" fill="none" stroke="rgba(212,175,55,0.05)" stroke-width="0.5"/><circle cx="50" cy="50" r="35" fill="none" stroke="rgba(212,175,55,0.05)" stroke-width="0.5"/><circle cx="50" cy="50" r="25" fill="none" stroke="rgba(212,175,55,0.05)" stroke-width="0.5"/><line x1="50" y1="5" x2="50" y2="95" stroke="rgba(212,175,55,0.03)" stroke-width="0.3"/><line x1="5" y1="50" x2="95" y2="50" stroke="rgba(212,175,55,0.03)" stroke-width="0.3"/></svg>') center/contain no-repeat;
    opacity: 0.3;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero h1 {
    margin-bottom: var(--spacing-sm);
}

.hero-tagline {
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 4px;
    color: var(--gold-light);
    margin-bottom: var(--spacing-sm);
}

.hero-subtext {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--silver-mist);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Gold Rim Lighting Effect */
.gold-rim {
    position: relative;
}

.gold-rim::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: radial-gradient(circle at center, transparent 60%, var(--shadow-gold) 100%);
    opacity: 0.3;
    pointer-events: none;
}

/* ============================================
   SECTIONS
   ============================================ */

.section {
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.section-dark {
    background: var(--carbon-black);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    color: var(--gold-accent);
    text-transform: uppercase;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--silver-mist);
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================
   ASSET CATEGORIES
   ============================================ */

.asset-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: var(--spacing-lg);
}

.asset-card {
    background: rgba(18, 18, 18, 0.8);
    border: 1px solid var(--border-subtle);
    padding: 2rem;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
}

.asset-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(212, 175, 55, 0.05));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.asset-card:hover {
    border-color: var(--gold-accent);
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(212, 175, 55, 0.2);
}

.asset-card:hover::before {
    opacity: 1;
}

.asset-icon {
    font-size: 3rem;
    color: var(--gold-accent);
    margin-bottom: var(--spacing-sm);
}

.asset-name {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--white-pearl);
    text-transform: uppercase;
}

/* ============================================
   ADVANTAGE CARDS
   ============================================ */

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: var(--spacing-lg);
}

.advantage-card {
    background: var(--carbon-black);
    border-left: 3px solid var(--gold-accent);
    padding: 2rem;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    background: rgba(212, 175, 55, 0.05);
    transform: translateX(10px);
}

.advantage-card h4 {
    color: var(--gold-accent);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--deep-black);
    border-top: 1px solid var(--border-subtle);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
}

.footer-disclaimer {
    font-size: 0.8rem;
    color: var(--silver-mist);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ============================================
   FORMS
   ============================================ */

.form-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--carbon-black);
    border: 1px solid var(--border-subtle);
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 1px;
    color: var(--gold-accent);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 1rem;
    background: var(--black-titanium);
    border: 1px solid var(--border-subtle);
    color: var(--white-pearl);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--gold-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   PORTAL SIDEBAR
   ============================================ */

.portal-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 280px;
    background: var(--deep-black);
    border-right: 1px solid var(--border-subtle);
    z-index: 2000;
    display: none;
    flex-direction: column;
}

.portal-sidebar.active {
    display: flex;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    color: var(--silver-mist);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar-link:hover,
.sidebar-link.active {
    background: rgba(212, 175, 55, 0.1);
    border-left-color: var(--gold-accent);
    color: var(--gold-accent);
}

.link-icon {
    font-size: 0.7rem;
    color: var(--gold-accent);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-subtle);
}

.btn-logout {
    width: 100%;
    padding: 0.8rem;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--silver-mist);
    font-size: 0.75rem;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    border-color: var(--gold-accent);
    color: var(--gold-accent);
}

/* ============================================
   PORTAL LAYOUT
   ============================================ */

.portal-layout {
    margin-left: 280px;
    min-height: 100vh;
    padding: 2rem;
}

.portal-banner {
    background: linear-gradient(135deg, var(--gold-dark), var(--gold-accent));
    color: var(--deep-black);
    padding: 0.8rem 2rem;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    margin: -2rem -2rem 2rem -2rem;
}

.portal-content {
    max-width: 1200px;
}

/* ============================================
   PORTAL TILES
   ============================================ */

.tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: var(--spacing-md);
}

.tile {
    background: var(--carbon-black);
    border: 1px solid var(--border-subtle);
    padding: 2rem;
    transition: all 0.3s ease;
}

.tile:hover {
    border-color: var(--gold-accent);
    box-shadow: 0 10px 40px rgba(212, 175, 55, 0.15);
}

.tile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.tile-title {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--silver-mist);
    text-transform: uppercase;
}

.tile-value {
    font-size: 2.5rem;
    font-family: var(--font-serif);
    color: var(--gold-accent);
    font-weight: 500;
}

.tile-label {
    font-size: 0.85rem;
    color: var(--silver-mist);
    margin-top: 0.5rem;
}

/* ============================================
   ASSET VAULT
   ============================================ */

.asset-vault-card {
    background: var(--carbon-black);
    border: 1px solid var(--border-subtle);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    display: grid;
    grid-template-columns: 150px 1fr auto;
    gap: 1.5rem;
    align-items: center;
}

.asset-image-placeholder {
    width: 150px;
    height: 100px;
    background: var(--black-titanium);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--silver-mist);
    font-size: 0.7rem;
}

.asset-details h4 {
    color: var(--gold-accent);
    margin-bottom: 0.5rem;
}

.asset-meta {
    display: flex;
    gap: 2rem;
    margin-top: 0.5rem;
    font-size: 0.85rem;
}

.asset-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.badge {
    padding: 0.4rem 1rem;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    border: 1px solid;
    display: inline-block;
}

.badge-up {
    color: #4ade80;
    border-color: #4ade80;
}

.badge-down {
    color: #f87171;
    border-color: #f87171;
}

.badge-stable {
    color: var(--silver-mist);
    border-color: var(--silver-mist);
}

.badge-hold {
    color: var(--gold-accent);
    border-color: var(--gold-accent);
}

.badge-sell {
    color: #f59e0b;
    border-color: #f59e0b;
}

.badge-acquire {
    color: #3b82f6;
    border-color: #3b82f6;
}

/* ============================================
   TABS
   ============================================ */

.tabs {
    display: flex;
    gap: 2rem;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: var(--spacing-md);
}

.tab {
    padding: 1rem 0;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    color: var(--silver-mist);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.tab:hover,
.tab.active {
    color: var(--gold-accent);
    border-bottom-color: var(--gold-accent);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .portal-sidebar {
        transform: translateX(-100%);
    }
    
    .portal-sidebar.active {
        transform: translateX(0);
    }
    
    .portal-layout {
        margin-left: 0;
    }
    
    .asset-vault-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .nav-menu {
        gap: 1.5rem;
    }
    
    .nav-link {
        font-size: 0.7rem;
    }
    
    .section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-gold {
    color: var(--gold-accent);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}