/* ============================================
   XO DEVELOPMENT - UNIFIED DESIGN SYSTEM v2
   Logo Gold: #e7cd56 (main) / #f6e365 (bright)
   ============================================ */

/* ========== CSS VARIABLES ========== */
:root {
    /* LOGO-MATCHED GOLD COLORS */
    --xo-gold: #e7cd56;
    --xo-gold-bright: #f6e365;
    --xo-gold-dark: #c9a93e;
    --xo-gold-gradient: linear-gradient(135deg, #f6e365 0%, #e7cd56 50%, #c9a93e 100%);
    --xo-gold-text: linear-gradient(135deg, #f6e365, #e7cd56);
    
    /* DARK THEME */
    --xo-bg: #0a0a0a;
    --xo-bg-card: #111111;
    --xo-bg-card-hover: #1a1a1a;
    --xo-border: #222222;
    --xo-border-gold: rgba(231, 205, 86, 0.3);
    
    /* TEXT */
    --xo-text: #ffffff;
    --xo-text-muted: #888888;
    --xo-text-light: #cccccc;
    
    /* ACCENTS */
    --xo-red: #e84545;
    --xo-green: #4CAF50;
    
    /* LAYOUT */
    --xo-header-height: 80px;
    --xo-sidebar-width: 260px;
    --xo-radius: 12px;
    --xo-radius-sm: 8px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--xo-bg);
    color: var(--xo-text);
    min-height: 100vh;
    line-height: 1.6;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5 {
    font-family: 'Bebas Neue', sans-serif;
    letter-spacing: 2px;
    line-height: 1.2;
}

/* Gold gradient text */
.gold-text,
.page-header h1,
h1.gold-text {
    background: var(--xo-gold-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== MAIN HEADER ========== */
.xo-header,
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--xo-header-height);
    background: var(--xo-bg-card);
    border-bottom: 1px solid var(--xo-border);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.header-inner {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo/Brand */
.xo-header-brand,
.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.xo-header-brand img,
.logo-link img {
    height: 50px;
    width: auto;
}

.xo-header-brand-text {
    display: flex;
    flex-direction: column;
}

.xo-header-brand-name {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.4rem;
    color: var(--xo-gold);
    letter-spacing: 3px;
    line-height: 1;
}

.xo-header-brand-tagline {
    font-size: 0.65rem;
    color: var(--xo-text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Desktop Navigation */
.xo-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.xo-nav a {
    color: var(--xo-text-light);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.xo-nav a:hover {
    color: var(--xo-gold);
}

/* Header Action Buttons */
.xo-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ========== HAMBURGER MENU BUTTON ========== */
.xo-hamburger,
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: var(--xo-gold-gradient);
    border: none;
    border-radius: var(--xo-radius-sm);
    cursor: pointer;
    padding: 10px;
}

.xo-hamburger span,
.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--xo-bg);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ========== MOBILE NAVIGATION MENU ========== */
.mobile-menu,
.xo-mobile-nav {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    max-width: 85vw;
    height: 100vh;
    background: var(--xo-bg-card);
    border-left: 2px solid var(--xo-gold);
    z-index: 10001;
    transition: right 0.3s ease;
    overflow-y: auto;
    padding-top: 20px;
}

.mobile-menu.active,
.xo-mobile-nav.open {
    right: 0;
}

.mobile-menu a,
.xo-mobile-nav a {
    display: block;
    padding: 16px 24px;
    color: var(--xo-text);
    text-decoration: none;
    font-size: 1rem;
    border-bottom: 1px solid var(--xo-border);
    transition: all 0.2s;
}

.mobile-menu a:hover,
.xo-mobile-nav a:hover {
    background: rgba(231, 205, 86, 0.1);
    color: var(--xo-gold);
}

/* Mobile menu close button */
.mobile-menu-close,
.xo-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--xo-gold);
    border-radius: 50%;
    color: var(--xo-gold);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Overlay */
.overlay,
.xo-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10000;
}

.overlay.active,
.xo-overlay.show {
    display: block;
}

/* ========== BUTTONS ========== */
.xo-btn,
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--xo-radius-sm);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.xo-btn-primary,
.btn-primary {
    background: var(--xo-gold-gradient);
    color: var(--xo-bg);
}

.xo-btn-primary:hover,
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(231, 205, 86, 0.4);
}

.xo-btn-secondary,
.btn-secondary {
    background: transparent;
    color: var(--xo-gold);
    border: 1px solid var(--xo-gold);
}

.xo-btn-secondary:hover,
.btn-secondary:hover {
    background: rgba(231, 205, 86, 0.1);
}

/* ========== CARDS ========== */
.card,
.xo-card,
.stat-card,
.api-card,
.feature-card,
.action-card,
.chain-card {
    background: var(--xo-bg-card);
    border: 1px solid var(--xo-border);
    border-radius: var(--xo-radius);
    padding: 24px;
    transition: all 0.2s ease;
}

.card:hover,
.xo-card:hover,
.stat-card:hover,
.api-card:hover {
    border-color: var(--xo-border-gold);
    transform: translateY(-2px);
}

/* Stat Cards - GOLD themed, not blue */
.stat-card {
    text-align: center;
}

.stat-card h3,
.stat-card .stat-label {
    color: var(--xo-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    font-family: 'Inter', sans-serif;
}

.stat-card .stat-value,
.stat-card .value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2rem;
    color: var(--xo-gold);
    letter-spacing: 1px;
}

.stat-card small,
.stat-card .stat-subtitle {
    color: var(--xo-text-muted);
    font-size: 0.75rem;
}

/* API Cards - GOLD themed */
.api-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.api-card h3 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.3rem;
    color: var(--xo-gold);
    letter-spacing: 1px;
}

.api-card .api-category {
    display: inline-block;
    background: rgba(231, 205, 86, 0.15);
    color: var(--xo-gold);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.api-card .api-description {
    color: var(--xo-text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

.api-card .api-price {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    color: var(--xo-gold);
}

/* ========== FORMS ========== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--xo-text-light);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--xo-bg);
    border: 1px solid var(--xo-border);
    border-radius: var(--xo-radius-sm);
    color: var(--xo-text);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--xo-gold);
}

/* ========== PAGE LAYOUTS ========== */

/* Public pages - centered content */
.page-content,
.main-content:not(.portal-content) {
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(var(--xo-header-height) + 40px) 24px 60px;
}

/* Portal pages with sidebar */
.portal-layout {
    display: flex;
    min-height: 100vh;
}

/* ========== PORTAL SIDEBAR ========== */
.portal-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--xo-sidebar-width);
    height: 100vh;
    background: var(--xo-bg-card);
    border-right: 1px solid var(--xo-border);
    z-index: 100;
    overflow-y: auto;
    padding: 20px 0;
}

.portal-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--xo-border);
    margin-bottom: 20px;
}

.portal-sidebar-brand img {
    height: 45px;
    width: auto;
}

.portal-sidebar-brand span {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.2rem;
    color: var(--xo-gold);
    letter-spacing: 2px;
}

.portal-sidebar-section {
    margin-bottom: 24px;
}

.portal-sidebar-section-title {
    padding: 0 20px;
    margin-bottom: 8px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--xo-text-muted);
}

.portal-sidebar-nav {
    display: flex;
    flex-direction: column;
}

.portal-sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--xo-text-light);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.portal-sidebar-nav a:hover {
    background: rgba(231, 205, 86, 0.1);
    color: var(--xo-gold);
}

.portal-sidebar-nav a.active {
    background: rgba(231, 205, 86, 0.15);
    color: var(--xo-gold);
    border-right: 3px solid var(--xo-gold);
}

.portal-sidebar-nav a svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Portal Main Content */
.portal-content,
main.main-content.portal-content {
    margin-left: var(--xo-sidebar-width);
    padding: 40px;
    flex: 1;
    min-height: 100vh;
    width: calc(100% - var(--xo-sidebar-width));
}

/* Portal Mobile Header - Hidden on desktop */
.portal-mobile-header {
    display: none;
}

/* ========== HERO SECTION ========== */
.hero {
    text-align: center;
    padding: 60px 20px;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    background: var(--xo-gold-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.hero p {
    color: var(--xo-text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 32px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.hero-stats .stat {
    text-align: center;
}

.hero-stats .stat-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.5rem;
    color: var(--xo-gold);
}

.hero-stats .stat-label {
    color: var(--xo-text-muted);
    font-size: 0.85rem;
}

/* ========== GRIDS ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.api-grid,
.apis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.chains-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

/* ========== MOBILE RESPONSIVE ========== */
@media (max-width: 768px) {
    /* Show hamburger, hide desktop nav */
    .xo-hamburger,
    .mobile-menu-btn {
        display: flex !important;
    }
    
    .xo-nav {
        display: none !important;
    }
    
    .xo-header-actions {
        display: none !important;
    }
    
    /* Adjust header */
    .xo-header,
    .site-header {
        padding: 0 16px;
        height: 70px;
    }
    
    .xo-header-brand img,
    .logo-link img {
        height: 40px;
    }
    
    .xo-header-brand-text {
        display: none;
    }
    
    /* Body padding for fixed header */
    body {
        padding-top: 0;
    }
    
    /* Page content - FULL WIDTH, CENTERED */
    .page-content,
    .main-content:not(.portal-content) {
        padding: calc(70px + 24px) 16px 40px;
        margin: 0 auto;
        width: 100%;
    }
    
    /* PORTAL PAGES ON MOBILE */
    .portal-sidebar {
        position: fixed;
        left: -100%;
        transition: left 0.3s ease;
    }
    
    .portal-sidebar.open {
        left: 0;
    }
    
    .portal-content,
    main.main-content.portal-content {
        margin-left: 0 !important;
        width: 100% !important;
        padding: 24px 16px;
        padding-top: 90px;
    }
    
    .portal-mobile-header {
        display: flex !important;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 70px;
        background: var(--xo-bg-card);
        border-bottom: 1px solid var(--xo-border);
        align-items: center;
        justify-content: space-between;
        padding: 0 16px;
        z-index: 1000;
    }
    
    /* Hero adjustments */
    .hero {
        padding: 40px 16px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .hero-stats .stat-value {
        font-size: 1.8rem;
    }
    
    /* Grid adjustments */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .api-grid,
    .apis-grid {
        grid-template-columns: 1fr;
    }
    
    /* Card adjustments */
    .stat-card {
        padding: 16px;
    }
    
    .stat-card .stat-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-cta .btn-primary,
    .hero-cta .btn-secondary {
        width: 100%;
        max-width: 280px;
    }
}

/* ========== WALLET PAGE SPECIFIC ========== */
.total-balance {
    background: var(--xo-bg-card);
    border: 1px solid var(--xo-gold);
    border-radius: var(--xo-radius);
    padding: 24px;
    text-align: center;
    margin-bottom: 24px;
}

.total-balance .total-label {
    color: var(--xo-text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.total-balance .total-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.5rem;
    color: var(--xo-gold);
}

.wallet-address {
    background: var(--xo-bg-card);
    border: 1px solid var(--xo-border);
    border-radius: var(--xo-radius);
    padding: 20px;
    margin-bottom: 24px;
}

.wallet-address .address-label {
    color: var(--xo-text-muted);
    font-size: 0.8rem;
    margin-bottom: 8px;
}

.wallet-address .address-value {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.wallet-address .address-value span {
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--xo-gold);
    word-break: break-all;
}

.wallet-address button {
    background: var(--xo-gold-gradient);
    color: var(--xo-bg);
    border: none;
    padding: 8px 16px;
    border-radius: var(--xo-radius-sm);
    cursor: pointer;
    font-weight: 600;
}

.fee-note {
    background: rgba(231, 205, 86, 0.1);
    border: 1px solid var(--xo-border-gold);
    border-radius: var(--xo-radius);
    padding: 16px;
    margin-bottom: 24px;
}

.fee-note p {
    color: var(--xo-text-light);
    font-size: 0.9rem;
    margin: 0;
}

.price-ticker {
    margin-bottom: 24px;
    color: var(--xo-text-muted);
}

/* ========== MISCELLANEOUS ========== */
.section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    color: var(--xo-gold);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

/* Page header */
.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 2.5rem;
}

.page-header p {
    color: var(--xo-text-muted);
    margin-top: 8px;
}

/* Filter buttons */
.filter-buttons,
.category-filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--xo-border);
    color: var(--xo-text-light);
    padding: 10px 20px;
    border-radius: var(--xo-radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--xo-gold);
    border-color: var(--xo-gold);
    color: var(--xo-bg);
}

/* Loading states */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--xo-text-muted);
}

/* Error states */
.error {
    background: rgba(232, 69, 69, 0.1);
    border: 1px solid var(--xo-red);
    color: var(--xo-red);
    padding: 16px;
    border-radius: var(--xo-radius-sm);
    margin-bottom: 16px;
}

/* Success states */
.success {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid var(--xo-green);
    color: var(--xo-green);
    padding: 16px;
    border-radius: var(--xo-radius-sm);
    margin-bottom: 16px;
}