/**
 * AirDrop Network - Main Stylesheet
 * Production-Level Solana Airdrop Distribution Platform
 */

/* =====================================================
   CSS Variables / Theme
   ===================================================== */
:root {
    /* Solana Colors */
    --sol-purple: #9945FF;
    --sol-green: #14F195;
    --sol-blue: #00D1FF;
    --sol-gradient: linear-gradient(135deg, var(--sol-purple), var(--sol-green));
    
    /* Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(20, 20, 35, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);
    
    /* Borders */
    --border-color: rgba(153, 69, 255, 0.2);
    --border-light: rgba(255, 255, 255, 0.05);
    
    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;
    
    /* Status Colors */
    --success: #14F195;
    --warning: #FFB800;
    --danger: #ef4444;
    --info: #00D1FF;
    
    /* Shadows */
    --shadow-sm: 0 2px 10px 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);
    --glow-purple: 0 0 40px rgba(153, 69, 255, 0.3);
    --glow-green: 0 0 40px rgba(20, 241, 149, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Spacing */
    --sidebar-width: 280px;
    --header-height: 70px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

/* =====================================================
   Typography
   ===================================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

.gradient-text {
    background: var(--sol-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mono {
    font-family: 'JetBrains Mono', monospace;
}

/* =====================================================
   Buttons
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    font-family: inherit;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--sol-purple), var(--sol-blue));
    color: white;
    box-shadow: 0 4px 20px rgba(153, 69, 255, 0.4);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(153, 69, 255, 0.5);
}

.btn-success {
    background: linear-gradient(135deg, var(--sol-green), #00c9a7);
    color: var(--bg-primary);
    font-weight: 700;
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--glow-green);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #dc2626);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #f59e0b);
    color: var(--bg-primary);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover:not(:disabled) {
    border-color: var(--sol-purple);
    background: rgba(153, 69, 255, 0.1);
}

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

.btn-ghost:hover:not(:disabled) {
    color: var(--text-primary);
    background: var(--bg-glass);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* =====================================================
   Form Elements
   ===================================================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--sol-purple);
    box-shadow: 0 0 0 3px rgba(153, 69, 255, 0.2);
}

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

.form-input.error {
    border-color: var(--danger);
}

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

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a0a0b0' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-helper {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.form-error {
    font-size: 0.85rem;
    color: var(--danger);
    margin-top: 0.5rem;
}

.input-group {
    display: flex;
    gap: 0;
}

.input-group .form-input {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .btn {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-icon {
    position: relative;
}

.input-icon .form-input {
    padding-left: 3rem;
}

.input-icon .icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* =====================================================
   Cards
   ===================================================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    backdrop-filter: blur(20px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 0;
}

.card-footer {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

/* =====================================================
   Dashboard Layout
   ===================================================== */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform var(--transition-normal);
}

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

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.sidebar-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--sol-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-section {
    padding: 0 1rem;
    margin-bottom: 1.5rem;
}

.nav-section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0 0.75rem;
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    margin-bottom: 0.25rem;
}

.nav-link:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
}

.nav-link.active {
    background: linear-gradient(135deg, rgba(153, 69, 255, 0.15), rgba(20, 241, 149, 0.1));
    color: var(--sol-green);
    border: 1px solid rgba(153, 69, 255, 0.2);
}

.nav-link .icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.nav-link .badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 50px;
}

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

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
}

/* Top Header */
.top-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-search {
    position: relative;
    width: 300px;
}

.header-search input {
    width: 100%;
    padding: 0.625rem 1rem 0.625rem 2.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.header-search .search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-notification {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-notification:hover {
    background: var(--bg-glass);
}

.header-notification .badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    font-size: 0.65rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-user:hover {
    background: var(--bg-glass);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: var(--sol-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.user-info {
    text-align: left;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Page Content */
.page-content {
    padding: 2rem;
}

.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: var(--text-secondary);
}

/* =====================================================
   Stats Grid
   ===================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.purple { background: rgba(153, 69, 255, 0.15); }
.stat-icon.green { background: rgba(20, 241, 149, 0.15); }
.stat-icon.blue { background: rgba(0, 209, 255, 0.15); }
.stat-icon.yellow { background: rgba(255, 184, 0, 0.15); }

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}

.stat-change {
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: 0.25rem;
}

.stat-change.positive { color: var(--success); }
.stat-change.negative { color: var(--danger); }

/* =====================================================
   Tables
   ===================================================== */
.table-container {
    overflow-x: auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 1rem 1.25rem;
    text-align: left;
}

.data-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    border-bottom: 1px solid var(--border-light);
}

.data-table tbody tr:hover {
    background: var(--bg-glass);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* =====================================================
   Badges & Tags
   ===================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: rgba(20, 241, 149, 0.15);
    color: var(--success);
}

.badge-warning {
    background: rgba(255, 184, 0, 0.15);
    color: var(--warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.badge-info {
    background: rgba(0, 209, 255, 0.15);
    color: var(--info);
}

.badge-purple {
    background: rgba(153, 69, 255, 0.15);
    color: var(--sol-purple);
}

.badge-gray {
    background: rgba(160, 160, 176, 0.15);
    color: var(--text-secondary);
}

/* Membership Badges */
.tier-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.tier-free {
    background: rgba(100, 100, 120, 0.2);
    color: #8a8a9a;
}

.tier-networker {
    background: rgba(153, 69, 255, 0.2);
    color: var(--sol-purple);
}

.tier-merchant {
    background: rgba(20, 241, 149, 0.2);
    color: var(--sol-green);
}

/* =====================================================
   Alerts
   ===================================================== */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-success {
    background: rgba(20, 241, 149, 0.1);
    border: 1px solid rgba(20, 241, 149, 0.3);
    color: var(--success);
}

.alert-warning {
    background: rgba(255, 184, 0, 0.1);
    border: 1px solid rgba(255, 184, 0, 0.3);
    color: var(--warning);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

.alert-info {
    background: rgba(0, 209, 255, 0.1);
    border: 1px solid rgba(0, 209, 255, 0.3);
    color: var(--info);
}

/* =====================================================
   Modal
   ===================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--danger);
    color: white;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* =====================================================
   Pagination
   ===================================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.page-btn {
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.page-btn:hover {
    background: var(--bg-glass);
    border-color: var(--sol-purple);
    color: var(--text-primary);
}

.page-btn.active {
    background: var(--sol-purple);
    border-color: var(--sol-purple);
    color: white;
}

/* =====================================================
   Empty State
   ===================================================== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.empty-text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* =====================================================
   KYC Status Card
   ===================================================== */
.kyc-status-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
}

.kyc-status-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 1.5rem;
}

.kyc-status-icon.pending {
    background: rgba(255, 184, 0, 0.15);
    border: 2px solid var(--warning);
}

.kyc-status-icon.verified {
    background: rgba(20, 241, 149, 0.15);
    border: 2px solid var(--success);
}

.kyc-status-icon.rejected {
    background: rgba(239, 68, 68, 0.15);
    border: 2px solid var(--danger);
}

.kyc-wallet-address {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    word-break: break-all;
    margin: 1rem 0;
}

.kyc-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--sol-green);
    font-family: 'JetBrains Mono', monospace;
}

/* =====================================================
   Wallet/Address Display
   ===================================================== */
.wallet-display {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-tertiary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

.wallet-display .copy-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    transition: color var(--transition-fast);
}

.wallet-display .copy-btn:hover {
    color: var(--sol-purple);
}

/* =====================================================
   Responsive
   ===================================================== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .page-content {
        padding: 1rem;
    }
    
    .top-header {
        padding: 1rem;
    }
    
    .header-search {
        display: none;
    }
    
    .data-table {
        font-size: 0.9rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.75rem;
    }
}

/* =====================================================
   Auth Pages
   ===================================================== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
}

.auth-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.auth-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(153, 69, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(20, 241, 149, 0.1) 0%, transparent 50%);
    animation: bgRotate 30s linear infinite;
}

@keyframes bgRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    width: 100%;
    max-width: 450px;
    backdrop-filter: blur(20px);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.auth-logo-icon {
    width: 50px;
    height: 50px;
    background: var(--sol-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    box-shadow: var(--glow-purple);
}

.auth-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.auth-title {
    text-align: center;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--sol-purple);
    font-weight: 500;
}

.auth-footer a:hover {
    color: var(--sol-green);
}

/* Membership Selection */
.membership-select {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.membership-option {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.membership-option:hover {
    border-color: var(--sol-purple);
}

.membership-option.selected {
    border-color: var(--sol-green);
    background: rgba(20, 241, 149, 0.1);
}

.membership-option input {
    display: none;
}

.membership-option .tier-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.membership-option .tier-price {
    font-family: 'JetBrains Mono', monospace;
    color: var(--sol-green);
    font-size: 0.9rem;
}

/* =====================================================
   Utilities
   ===================================================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.hidden { display: none !important; }
.visible { display: block !important; }

/* Grid */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: -0.75rem;
}

.col {
    padding: 0.75rem;
}

.col-6 { width: 50%; }
.col-4 { width: 33.333%; }
.col-3 { width: 25%; }
.col-12 { width: 100%; }

@media (max-width: 768px) {
    .col-6, .col-4, .col-3 {
        width: 100%;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--sol-purple);
}

/* Tooltip */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 100;
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
    bottom: calc(100% + 5px);
}

/* Loader */
.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--sol-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}