:root {
    --primary: #6C63FF;
    --primary-dark: #5A52D5;
    --primary-light: #8B85FF;
    --bg: #0B0E17;
    --bg-card: #141824;
    --bg-card-hover: #1A1F30;
    --text: #FFFFFF;
    --text-muted: #8892A6;
    --border: #1E2538;
    --success: #22C55E;
    --error: #EF4444;
    --gradient: linear-gradient(135deg, #6C63FF 0%, #B24BF3 100%);
}

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

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

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(108, 99, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 99, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

.bg-glow-1 {
    top: -200px;
    right: -100px;
    background: var(--primary);
}

.bg-glow-2 {
    bottom: -200px;
    left: -100px;
    background: #B24BF3;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Landing ── */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 24px;
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.hero h1 .gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 480px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: var(--gradient);
    color: white;
    font-size: 1.05rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 24px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(108, 99, 255, 0.45);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: transparent;
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s;
}

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

/* ── PIN Form ── */
.pin-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
}

.pin-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    text-align: center;
}

.pin-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.pin-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 32px;
}

.pin-inputs {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 24px;
}

.pin-inputs input {
    width: 52px;
    height: 60px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    outline: none;
    transition: border-color 0.2s;
}

.pin-inputs input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.15);
}

.pin-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-bottom: 16px;
    display: none;
}

.pin-error.show {
    display: block;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.875rem;
    text-decoration: none;
    margin-top: 24px;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--text);
}

/* ── Dashboard ── */
.dashboard {
    padding: 40px 0;
    min-height: 100vh;
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 48px;
    flex-wrap: wrap;
    gap: 16px;
}

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

.dashboard-header .client-name {
    color: var(--primary-light);
}

.btn-logout {
    padding: 10px 20px;
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
}

.btn-logout:hover {
    background: rgba(239, 68, 68, 0.2);
}

.demos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.demo-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.demo-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 12px 40px rgba(108, 99, 255, 0.15);
}

.demo-thumb {
    height: 200px;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.demo-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.demo-thumb .placeholder {
    font-size: 3rem;
    opacity: 0.3;
}

.platform-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.platform-badge.wordpress {
    background: rgba(33, 150, 243, 0.15);
    color: #64B5F6;
    border: 1px solid rgba(33, 150, 243, 0.3);
}

.platform-badge.html {
    background: rgba(255, 152, 0, 0.15);
    color: #FFB74D;
    border: 1px solid rgba(255, 152, 0, 0.3);
}

.platform-badge.nodejs {
    background: rgba(76, 175, 80, 0.15);
    color: #81C784;
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.demo-info {
    padding: 20px 24px 24px;
}

.demo-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.demo-info p {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 20px;
}

.demo-info .btn-view {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--gradient);
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 10px;
    text-decoration: none;
    transition: transform 0.15s, box-shadow 0.15s;
}

.demo-info .btn-view:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(108, 99, 255, 0.3);
}

.no-demos {
    text-align: center;
    padding: 80px 24px;
    color: var(--text-muted);
}

.no-demos svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.3;
}

/* ── Admin ── */
.admin-nav {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.admin-nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.admin-nav .logo {
    font-size: 1.25rem;
    margin: 0;
}

.admin-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px;
}

.admin-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}

.stat-card .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.stat-card .value {
    font-size: 1.75rem;
    font-weight: 700;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

th, td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: rgba(108, 99, 255, 0.05);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
}

td {
    font-size: 0.9rem;
}

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

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

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

.pin-display {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--primary-light);
    background: rgba(108, 99, 255, 0.1);
    padding: 4px 12px;
    border-radius: 6px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 32px;
}

.form-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 24px;
}

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

.actions {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.15s;
}

.btn-sm:hover {
    opacity: 0.85;
}

.btn-edit {
    background: rgba(108, 99, 255, 0.15);
    color: var(--primary-light);
}

.btn-delete {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

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

.alert {
    padding: 14px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 4px;
    width: fit-content;
}

.tab {
    padding: 10px 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--text);
}

.tab.active {
    background: var(--primary);
    color: white;
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .pin-card {
        padding: 32px 24px;
    }

    .pin-inputs input {
        width: 44px;
        height: 52px;
        font-size: 1.25rem;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
}