/*
 * WhatsApp API SaaS - Premium Design System
 * Dark glassmorphism with WhatsApp green accents
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ─── CSS Variables ──────────────────────────────────────── */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255,255,255,0.03);
    --bg-card-hover: rgba(255,255,255,0.06);
    --bg-input: rgba(255,255,255,0.05);
    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --text-muted: #666;
    --accent: #25D366;
    --accent-dark: #128C7E;
    --accent-glow: rgba(37,211,102,0.15);
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --success: #25D366;
    --sidebar-width: 260px;
    --header-height: 65px;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 8px 32px rgba(0,0,0,0.3);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: #2ee077; }

/* ─── Layout ─────────────────────────────────────────────── */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 30px;
    min-height: 100vh;
}

@media (max-width: 768px) {
    .main-content { margin-left: 0; padding: 15px; }
}

/* ─── Sidebar ────────────────────────────────────────────── */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s ease;
}

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

.sidebar-brand .brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.sidebar-brand h2 {
    font-size: 16px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), #2ee077);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-brand small {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

.sidebar-nav {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 8px;
}

.nav-section-title {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    padding: 12px 12px 6px;
    font-weight: 600;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 2px;
}

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

.nav-item.active {
    background: var(--accent-glow);
    color: var(--accent);
}

.nav-item .nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.nav-item .badge {
    margin-left: auto;
    background: var(--accent);
    color: #000;
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 20px;
    font-weight: 700;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    border-radius: 10px;
    transition: var(--transition);
}

.sidebar-user:hover { background: var(--bg-card-hover); }

.sidebar-user .avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    color: #fff;
}

.sidebar-user .user-info { flex: 1; }
.sidebar-user .user-name { font-size: 13px; font-weight: 600; }
.sidebar-user .user-role { font-size: 11px; color: var(--text-muted); }

/* ─── Page Header ────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.page-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.breadcrumb a { color: var(--text-secondary); }
.breadcrumb .sep { opacity: 0.3; }

/* ─── Cards ──────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(20px);
    transition: var(--transition);
}

.card:hover {
    border-color: var(--border-hover);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 16px;
    font-weight: 700;
}

/* ─── Stat Cards ─────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(20px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    opacity: 0;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

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

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
}

.stat-card .stat-icon.green { background: rgba(37,211,102,0.12); }
.stat-card .stat-icon.blue { background: rgba(59,130,246,0.12); }
.stat-card .stat-icon.purple { background: rgba(139,92,246,0.12); }
.stat-card .stat-icon.orange { background: rgba(245,158,11,0.12); }

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-card .stat-change {
    font-size: 12px;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ─── Tables ─────────────────────────────────────────────── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
}

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

table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

table td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    font-size: 13px;
    vertical-align: middle;
}

table tr:hover td {
    background: rgba(255,255,255,0.02);
}

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

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37,211,102,0.3);
    color: #fff;
}

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

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

.btn-danger {
    background: rgba(239,68,68,0.15);
    border: 1px solid rgba(239,68,68,0.3);
    color: #f87171;
}

.btn-danger:hover {
    background: rgba(239,68,68,0.25);
}

.btn-sm { padding: 6px 14px; font-size: 12px; border-radius: 8px; }
.btn-lg { padding: 14px 28px; font-size: 15px; border-radius: 14px; }
.btn-block { width: 100%; justify-content: center; }

/* ─── Forms ──────────────────────────────────────────────── */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-group label .required { color: var(--danger); }

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23666' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-help {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
}

/* ─── Badges ─────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-success { background: rgba(37,211,102,0.12); color: #25D366; }
.badge-danger { background: rgba(239,68,68,0.12); color: #f87171; }
.badge-warning { background: rgba(245,158,11,0.12); color: #fbbf24; }
.badge-info { background: rgba(59,130,246,0.12); color: #60a5fa; }
.badge-secondary { background: rgba(255,255,255,0.06); color: var(--text-secondary); }

/* ─── Status Indicator ───────────────────────────────────── */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.status-dot.online { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.status-dot.offline { background: var(--text-muted); }
.status-dot.pending { background: var(--warning); animation: pulse 2s infinite; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ─── Alerts ─────────────────────────────────────────────── */
.alert {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 13px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-success { background: rgba(37,211,102,0.1); border: 1px solid rgba(37,211,102,0.2); color: #25D366; }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2); color: #f87171; }
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.2); color: #fbbf24; }
.alert-info { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2); color: #60a5fa; }

.alert-icon { font-size: 16px; }
.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    color: inherit;
    font-size: 18px;
    cursor: pointer;
    opacity: 0.6;
}

/* ─── QR Code Section ────────────────────────────────────── */
.qr-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px;
}

.qr-box {
    width: 280px;
    height: 280px;
    background: #fff;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.qr-box img {
    width: 260px;
    height: 260px;
    object-fit: contain;
}

.qr-box .qr-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 10px;
    opacity: 0;
    transition: var(--transition);
}

.qr-box.expired .qr-overlay { opacity: 1; }

.qr-scanning {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    animation: scanLine 2s linear infinite;
}

@keyframes scanLine {
    0% { top: 0; }
    50% { top: calc(100% - 3px); }
    100% { top: 0; }
}

.qr-status {
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.qr-instructions {
    text-align: center;
    max-width: 300px;
}

.qr-instructions p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.qr-instructions .step-number {
    display: inline-flex;
    width: 22px;
    height: 22px;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    margin-right: 6px;
}

/* ─── API Key Display ────────────────────────────────────── */
.api-key-display {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: rgba(37,211,102,0.06);
    border: 1px solid rgba(37,211,102,0.15);
    border-radius: var(--radius);
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    letter-spacing: 0.5px;
}

.api-key-display .key-text {
    flex: 1;
    word-break: break-all;
}

.api-key-display .copy-btn {
    padding: 6px 12px;
    background: var(--accent);
    color: #000;
    border: none;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
}

.api-key-display .copy-btn:hover {
    transform: scale(1.05);
}

/* ─── Connection Status Card ─────────────────────────────── */
.connection-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.connection-card.connected {
    border-color: rgba(37,211,102,0.2);
    background: rgba(37,211,102,0.03);
}

.connection-card.disconnected {
    border-color: rgba(239,68,68,0.2);
    background: rgba(239,68,68,0.03);
}

.connection-card .conn-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.connection-card.connected .conn-icon {
    background: rgba(37,211,102,0.12);
}

.connection-card.disconnected .conn-icon {
    background: rgba(239,68,68,0.12);
}

.connection-card .conn-info { flex: 1; }
.connection-card .conn-info h4 { font-size: 16px; font-weight: 700; }
.connection-card .conn-info p { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }

/* ─── Modals ─────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.modal-header h3 { font-size: 18px; font-weight: 700; }

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
}

/* ─── Toast Notifications ────────────────────────────────── */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: toastIn 0.3s ease, toastOut 0.3s ease 4.7s forwards;
    backdrop-filter: blur(20px);
    min-width: 280px;
    box-shadow: var(--shadow);
}

.toast-success { background: rgba(37,211,102,0.15); border: 1px solid rgba(37,211,102,0.3); color: #25D366; }
.toast-error { background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.3); color: #f87171; }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

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

/* ─── Pagination ─────────────────────────────────────────── */
.pagination {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    justify-content: center;
}

.page-btn {
    padding: 8px 14px;
    border-radius: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}

.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn.active { background: var(--accent); color: #000; border-color: var(--accent); }

/* ─── Login Pages ────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37,211,102,0.08) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    border-radius: 50%;
}

.login-page::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(18,140,126,0.06) 0%, transparent 70%);
    bottom: -50px;
    left: -50px;
    border-radius: 50%;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px;
    max-width: 420px;
    width: 100%;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo .icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin: 0 auto 16px;
    box-shadow: 0 8px 30px rgba(37,211,102,0.2);
}

.login-logo h1 {
    font-size: 22px;
    font-weight: 700;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 4px;
}

/* ─── Empty State ────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

/* ─── Loading Spinner ────────────────────────────────────── */
.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
    padding: 40px;
    color: var(--text-secondary);
}

/* ─── Sidebar Toggle (Mobile) ────────────────────────────── */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 200;
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 20px;
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .sidebar-toggle { display: flex; }
    .stats-grid { grid-template-columns: 1fr; }
}

/* ─── Action Buttons Group ───────────────────────────────── */
.actions {
    display: flex;
    gap: 6px;
}

/* ─── Code Block ─────────────────────────────────────────── */
.code-block {
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 13px;
    overflow-x: auto;
    position: relative;
}

.code-block .copy-code {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 10px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
}

/* ─── Landing Page ───────────────────────────────────────── */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37,211,102,0.1) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(18,140,126,0.08) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-30px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero-content h1 {
    font-size: 52px;
    font-weight: 800;
    letter-spacing: -1.5px;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-content h1 .gradient {
    background: linear-gradient(135deg, var(--accent), #2ee077, var(--accent-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ─── Features Section ───────────────────────────────────── */
.features-section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.features-section h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
}

.features-section .section-desc {
    text-align: center;
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 48px;
}

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

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.feature-card .feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 18px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* ─── Pricing Section ────────────────────────────────────── */
.pricing-section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.pricing-card.popular {
    border-color: var(--accent);
    background: rgba(37,211,102,0.03);
}

.pricing-card.popular::before {
    content: 'POPULAR';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #000;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1.5px;
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.pricing-card .plan-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.pricing-card .price {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 6px;
}

.pricing-card .price span { font-size: 16px; color: var(--text-secondary); font-weight: 400; }

.pricing-card .plan-features {
    list-style: none;
    text-align: left;
    margin: 24px 0;
}

.pricing-card .plan-features li {
    padding: 8px 0;
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-card .plan-features li::before {
    content: '✓';
    color: var(--accent);
    font-weight: 700;
    font-size: 14px;
}

/* ─── Navbar (Landing) ───────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    backdrop-filter: blur(20px);
    background: rgba(10,10,15,0.8);
    border-bottom: 1px solid var(--border);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.navbar-brand span {
    background: linear-gradient(135deg, var(--accent), #2ee077);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.navbar-links a {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.navbar-links a:hover { color: var(--accent); }

/* ─── Footer ─────────────────────────────────────────────── */
.site-footer {
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 13px;
}

/* ─── Utility ────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-2 { gap: 16px; }
.d-flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-1 { flex: 1; }
.hidden { display: none; }