/* ============= NFC RELAY PRO - MODERN DARK THEME ============= */

:root {
    /* Dark Theme Colors */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --bg-input: #252525;
    --bg-hover: #2a2a2a;

    /* Accent Colors */
    --accent-primary: #6366f1;
    --accent-primary-dark: #4f46e5;
    --accent-success: #22c55e;
    --accent-danger: #ef4444;
    --accent-warning: #f59e0b;
    --accent-info: #3b82f6;
    --accent-orange: #ff9f0a;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;

    /* Border Colors */
    --border-color: #333333;
    --border-light: #444444;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-success: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-orange: linear-gradient(135deg, #ff9f0a 0%, #ff453a 100%);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-primary-dark);
}

/* ============= NAVBAR ============= */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.brand-icon {
    font-size: 1.5rem;
}

.brand-badge {
    background: var(--gradient-orange);
    color: white;
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

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

.nav-link.admin-link {
    color: var(--accent-warning);
}

.nav-link.logout {
    color: var(--accent-danger);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============= CONTAINER ============= */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: calc(100vh - 140px);
}

/* ============= ALERTS ============= */
.alerts-container {
    margin-bottom: 1.5rem;
}

.alert {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    cursor: pointer;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.alert-success {
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: var(--accent-success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--accent-warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--accent-info);
}

.alert-icon {
    font-size: 1.25rem;
}

.alert-text {
    flex: 1;
}

.alert-close {
    opacity: 0.5;
    font-size: 0.875rem;
}

/* ============= AUTH PAGES ============= */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
    padding: 2rem;
}

.auth-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.auth-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-secondary);
}

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

.auth-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.auth-footer p {
    color: var(--text-secondary);
}

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

/* ============= FORMS ============= */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.label-icon {
    font-size: 1rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ============= BUTTONS ============= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
}

.btn-danger {
    background: var(--gradient-danger);
    color: white;
}

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

.btn-outline:hover {
    background: var(--accent-primary);
    color: white;
}

.btn-block {
    width: 100%;
}

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

.btn-xs {
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

.btn.disabled {
    background: var(--bg-hover);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.5;
}

/* ============= CARDS ============= */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.card-header h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.card-text {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* ============= DASHBOARD ============= */
.dashboard-header {
    margin-bottom: 2rem;
}

.dashboard-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

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

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

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

/* Status Pills */
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.status-pill.active {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-success);
}

.status-pill.inactive {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-danger);
}

.pulse {
    width: 8px;
    height: 8px;
    background: currentColor;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Detail Rows */
.subscription-details,
.account-details {
    margin-bottom: 1.5rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-row .label {
    color: var(--text-secondary);
}

.detail-row .value {
    font-weight: 600;
    color: var(--text-primary);
}

/* Device Counter */
.device-counter {
    background: var(--bg-input);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-success);
}

.device-counter.full {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-danger);
}

/* Limit Warning */
.limit-warning {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.icon-warning {
    font-size: 1.5rem;
    color: var(--accent-danger);
}

.limit-warning p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* ============= DOWNLOADS CARD ============= */
.download-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.download-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.download-item:hover {
    border-color: var(--accent-primary);
}

.download-item.locked {
    opacity: 0.7;
}

.download-item .app-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 700;
    color: white;
}

.download-item .app-icon.reader {
    background: var(--gradient-primary);
}

.download-item .app-icon.emulator {
    background: var(--gradient-orange);
}

.download-item .app-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.download-item .app-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.download-item .app-type {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.download-item .app-type::before {
    content: "•";
    margin-right: 8px;
    color: var(--text-muted);
}

.download-item .app-tag {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.app-tag.free {
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent-success);
}

.app-tag.paid {
    background: rgba(99, 102, 241, 0.2);
    color: var(--accent-primary);
}

.app-tag.locked {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

/* ============= INVITE FRIENDS CARD ============= */
.card-invites .card-header {
    margin-bottom: 12px;
}

.invite-counter {
    background: var(--bg-input);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.invite-counter .used {
    color: var(--accent-success);
}

.invite-counter .total {
    color: var(--text-muted);
}

.invite-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
    line-height: 1.4;
}

.generate-form {
    margin-bottom: 16px;
}

.generate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    font-size: 0.95rem;
}

.generate-btn .plus-icon {
    font-size: 1.2rem;
    font-weight: bold;
}

.generate-btn .remaining {
    opacity: 0.8;
    font-size: 0.85rem;
}

.invite-limit-reached {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(245, 158, 11, 0.15);
    border-radius: var(--radius-md);
    color: var(--accent-warning);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.invite-limit-reached .warn-icon {
    font-size: 1.2rem;
}

.invite-codes-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}

.code-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 10px;
}

.code-card.active {
    border-color: var(--accent-success);
    background: rgba(34, 197, 94, 0.08);
    cursor: pointer;
}

.code-card.active:hover {
    background: rgba(34, 197, 94, 0.15);
}

.code-card.used {
    opacity: 0.6;
}

.code-card .code-text {
    font-family: 'SF Mono', 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
    background: none;
    padding: 0;
}

.code-card.active .code-text {
    color: var(--accent-success);
}

.code-status {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-badge.available {
    background: var(--accent-success);
    color: white;
}

.status-badge.used {
    background: var(--bg-hover);
    color: var(--text-muted);
}

.code-status .used-by {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.code-status .copy-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.8;
}

.view-referrals-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--accent-primary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 0;
    transition: all 0.2s;
}

.view-referrals-link:hover {
    color: var(--accent-primary-dark);
}

.view-referrals-link .count {
    opacity: 0.7;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .download-item {
        flex-wrap: wrap;
    }

    .download-item .app-details {
        flex: 1 1 calc(100% - 70px);
    }

    .download-item .download-btn {
        width: 100%;
        margin-top: 8px;
    }

    .code-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .code-status {
        width: 100%;
        justify-content: space-between;
    }
}

/* Devices Grid */
.devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.device-card {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

.device-card.blocked {
    opacity: 0.6;
    border-color: var(--accent-danger);
}

.device-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.device-name {
    font-weight: 600;
}

.device-code,
.activation-code {
    margin-bottom: 0.75rem;
}

.device-code label,
.activation-code label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.device-card code {
    display: block;
    background: var(--bg-primary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.activation-code code.highlight {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-success);
    cursor: pointer;
    transition: all 0.2s;
}

.activation-code code.highlight:hover {
    background: rgba(34, 197, 94, 0.25);
}

.activation-code code.copied {
    background: var(--accent-success);
    color: white;
}

.activation-code small {
    display: block;
    text-align: center;
    margin-top: 0.25rem;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.device-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* ============= BADGES ============= */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-success);
}

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

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-warning);
}

.badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-info);
}

.badge-secondary {
    background: var(--bg-hover);
    color: var(--text-muted);
}

/* ============= PAYMENT PAGE ============= */
.payment-container {
    max-width: 900px;
    margin: 0 auto;
}

.payment-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.payment-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.plan-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
    position: relative;
}

.plan-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.plan-card.featured {
    border-color: var(--accent-primary);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--bg-card) 100%);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 0.35rem 1rem;
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    font-weight: 700;
}

.plan-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.plan-description {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.plan-price {
    margin: 1.5rem 0;
}

.plan-price .currency {
    font-size: 1.5rem;
    vertical-align: top;
    color: var(--text-secondary);
}

.plan-price .amount {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.plan-price .period {
    font-size: 1rem;
    color: var(--text-muted);
}

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

.plan-features {
    list-style: none;
    text-align: left;
    margin-bottom: 1.5rem;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-features .check {
    color: var(--accent-success);
    font-weight: bold;
}

/* Payment Info Section */
.payment-info-section {
    text-align: center;
    margin-bottom: 2.5rem;
}

.payment-info-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
}

.info-icon {
    font-size: 2.5rem;
}

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

.info-content h3 {
    margin-bottom: 0.25rem;
}

.info-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.crypto-logos {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.crypto-badge {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* FAQ Section */
.faq-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.faq-section h3 {
    text-align: center;
    margin-bottom: 1.5rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.faq-item {
    padding: 1rem;
    background: var(--bg-input);
    border-radius: var(--radius-md);
}

.faq-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ============= ADMIN PAGES ============= */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.admin-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card.highlight {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, var(--bg-card) 100%);
    border-color: var(--accent-success);
}

.stat-icon {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--bg-input);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

/* Admin Nav */
.admin-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.admin-nav-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.2s;
}

.admin-nav-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.admin-nav-card .nav-icon {
    font-size: 2rem;
}

.admin-nav-card .nav-title {
    font-weight: 600;
    color: var(--text-primary);
}

.admin-nav-card .nav-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============= TABLES ============= */
.table-container {
    overflow-x: auto;
}

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

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

.table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.table code {
    background: var(--bg-input);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-family: 'SF Mono', monospace;
}

.id-badge {
    background: var(--bg-input);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.country-badge {
    background: var(--bg-input);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.device-count {
    background: var(--bg-input);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.sub-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.sub-info small {
    color: var(--text-muted);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.extend-form {
    display: flex;
    gap: 0.25rem;
}

.days-input {
    width: 60px;
    padding: 0.35rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.8rem;
}

.plan-select {
    width: 70px;
    padding: 0.35rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.75rem;
}

/* Devices Row */
.devices-row {
    background: var(--bg-secondary);
}

.devices-list {
    padding: 0.5rem;
}

.devices-label {
    font-weight: 600;
    margin-right: 1rem;
}

.device-name-tag {
    background: var(--accent-primary);
    color: white;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.text-muted {
    color: var(--text-muted) !important;
}

.device-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.25rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
}

/* ============= ERROR PAGE ============= */
.error-container {
    text-align: center;
    padding: 4rem 1rem;
}

.error-container h1 {
    font-size: 8rem;
    font-weight: 700;
    background: var(--gradient-danger);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.error-container p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.error-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* ============= FOOTER ============= */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-links {
    margin-top: 0.5rem;
}

.footer-links a {
    color: var(--text-muted);
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* ============= UTILITIES ============= */
.mt-4 {
    margin-top: 2rem;
}

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

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

/* ============= RESPONSIVE ============= */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 1rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links.mobile-open {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .plans-grid {
        grid-template-columns: 1fr;
    }

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

    .admin-header {
        flex-direction: column;
    }

    .action-buttons {
        flex-direction: column;
    }

    .extend-form {
        flex-direction: column;
    }

    .days-input {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }

    .card {
        padding: 1rem;
    }

    .auth-box {
        padding: 1.5rem;
    }

    .plan-card {
        padding: 1.5rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ============= INVITE / REFERRAL SYSTEM ============= */
.card-invites .invite-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.invite-codes-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.invite-code-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.invite-code-item.used {
    opacity: 0.6;
}

.invite-code-item .code-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.invite-code {
    font-family: 'SF Mono', 'Courier New', monospace;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 2px;
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
}

.invite-code.highlight {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-success);
    cursor: pointer;
    transition: all 0.2s;
}

.invite-code.highlight:hover {
    background: rgba(34, 197, 94, 0.25);
}

.invite-code.copied {
    background: var(--accent-success);
    color: white;
}

.required-badge {
    background: var(--accent-danger);
    color: white;
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    margin-left: 0.5rem;
}

.empty-state.small {
    padding: 1.5rem 1rem;
}

.empty-state.small p {
    font-size: 0.9rem;
}