/* ============================================================
   SimpleApp.pl — Master Stylesheet
   Dark Mode + Glassmorphism | Mobile First
   ============================================================ */

/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ── CSS Variables ── */
:root {
    /* Colors */
    --bg-primary: #09090b;
    --bg-secondary: #0f172a;
    --bg-card: rgba(15, 23, 42, 0.7);
    --bg-card-hover: rgba(15, 23, 42, 0.9);
    --bg-input: rgba(15, 23, 42, 0.5);
    --bg-nav: rgba(9, 9, 11, 0.85);

    --accent: #10b981;
    --accent-hover: #059669;
    --accent-glow: rgba(16, 185, 129, 0.25);
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --accent-blue-glow: rgba(59, 130, 246, 0.25);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-glass: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);

    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 15px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 30px var(--accent-glow);

    /* Glass */
    --glass-blur: blur(16px);
    --glass-blur-light: blur(8px);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Subtle background gradient */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

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

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

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}
h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-center { text-align: center; }

/* ── Layout ── */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.page-wrapper {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: var(--space-xl) 0;
}

/* ── Navigation ── */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-nav);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-glass);
    padding: var(--space-md) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
}
.nav-brand span {
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    color: var(--text-primary);
}
.nav-toggle svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

/* Mobile nav */
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-nav);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-bottom: 1px solid var(--border-glass);
        flex-direction: column;
        padding: var(--space-md) var(--space-lg);
        gap: var(--space-sm);
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: var(--space-sm) 0; font-size: 1rem; }
}

/* ── Hero Section ── */
.hero {
    text-align: center;
    padding: var(--space-3xl) 0;
    position: relative;
}

.hero h1 {
    font-weight: 900;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    line-height: 1.7;
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
    z-index: -1;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.625rem 1.5rem;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
    line-height: 1.4;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #0d9668);
    color: #fff;
    box-shadow: 0 2px 10px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
    color: #fff;
}

.btn-secondary {
    background: rgba(255,255,255,0.06);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
}

.btn-blue {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-hover));
    color: #fff;
    box-shadow: 0 2px 10px var(--accent-blue-glow);
}
.btn-blue:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-blue-glow);
    color: #fff;
}

.btn-sm { padding: 0.375rem 0.875rem; font-size: 0.8rem; }
.btn-lg { padding: 0.875rem 2rem; font-size: 1rem; }

.btn:disabled, .btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ── Glass Cards ── */
.card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all 0.3s ease;
}

.card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-md);
}

.card-compact { padding: var(--space-lg); }

/* ── Product Grid ── */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.product-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-blue));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3), 0 0 30px var(--accent-glow);
}
.product-card:hover::before { opacity: 1; }

.product-card .icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    display: block;
}

.product-card .name {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.product-card .description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

/* Labels / Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
}

.badge-free {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent);
    border: 1px solid rgba(16, 185, 129, 0.3);
}
.badge-premium {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
}
.badge-coming {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}
.badge-active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}
.badge-inactive {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ── Category Filter Pills ── */
.filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    justify-content: center;
}

.filter-pill {
    padding: 0.375rem 1rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}
.filter-pill:hover, .filter-pill.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ── Forms ── */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    background: var(--bg-input);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    outline: none;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8.825L.35 3.175 1.175 2.35 6 7.175l4.825-4.825.825.825z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2rem;
}

.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}
.form-check input[type="checkbox"] {
    accent-color: var(--accent);
    margin-top: 0.2rem;
    width: 16px;
    height: 16px;
}
.form-check label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ── Alerts / Flash Messages ── */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    animation: slideDown 0.3s ease;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success);
}
.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
}
.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning);
}
.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--info);
}

/* ── Tables (Admin) ── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-glass);
}

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

table th, table td {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-glass);
}

table th {
    background: rgba(255,255,255,0.03);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

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

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

/* ── Pagination ── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}
.pagination a, .pagination span {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
}
.pagination a {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}
.pagination a:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.pagination .current {
    background: var(--accent);
    color: #fff;
    border: 1px solid var(--accent);
}

/* ── Auth Forms Card ── */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    padding: var(--space-xl) 0;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
}

.auth-card h2 {
    text-align: center;
    margin-bottom: var(--space-xl);
}

/* ── Admin Stat Cards ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ── Footer ── */
.footer {
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--border-glass);
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.footer a { color: var(--text-secondary); }
.footer a:hover { color: var(--accent); }

/* ── Page Header ── */
.page-header {
    margin-bottom: var(--space-2xl);
}
.page-header h1 {
    margin-bottom: var(--space-sm);
}
.page-header .breadcrumb {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.page-header .breadcrumb a { color: var(--text-secondary); }

/* ── Header with Action ── */
.header-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

/* ── Payment Disabled Banner ── */
.payment-notice {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    text-align: center;
    font-size: 0.85rem;
    color: var(--warning);
    margin-top: var(--space-md);
}

/* ── Subscription Cards ── */
.sub-card {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
}
.sub-card .sub-icon {
    font-size: 2rem;
}
.sub-card .sub-info { flex: 1; }
.sub-card .sub-info h4 { margin-bottom: var(--space-xs); }
.sub-card .sub-info p { font-size: 0.85rem; color: var(--text-secondary); }

/* ── Settings Accordion ── */
.settings-section {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    overflow: hidden;
}
.settings-header {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    cursor: pointer;
    transition: background 0.2s ease;
}
.settings-header:hover { background: rgba(255,255,255,0.02); }
.settings-header .icon { font-size: 1.5rem; }
.settings-header h4 { flex: 1; font-size: 1rem; }
.settings-body { padding: 0 var(--space-lg) var(--space-lg); }

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

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

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Utility ── */
.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-xl); }
.mb-1 { margin-bottom: var(--space-md); }
.mb-2 { margin-bottom: var(--space-xl); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }
.inline-form { display: flex; gap: var(--space-sm); align-items: flex-end; }
.inline-form .form-group { margin-bottom: 0; flex: 1; }

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: var(--space-3xl);
    color: var(--text-muted);
}
.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}
.empty-state p {
    font-size: 0.95rem;
    margin-bottom: var(--space-lg);
}

/* ── Responsive ── */
@media (min-width: 640px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .product-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
    .container { padding: 0 var(--space-md); }
    .hero { padding: var(--space-2xl) 0; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .auth-card { padding: var(--space-xl); }
    .header-actions { flex-direction: column; align-items: stretch; }
    .inline-form { flex-direction: column; }
    table th, table td { padding: var(--space-sm) var(--space-md); }
}

/* ── Log Level Colors ── */
.log-error { color: var(--danger); }
.log-warning { color: var(--warning); }
.log-info { color: var(--info); }

/* ── Section Spacing ── */
.section { padding: var(--space-2xl) 0; }
.section-title {
    text-align: center;
    margin-bottom: var(--space-2xl);
}
.section-title h2 { margin-bottom: var(--space-sm); }
.section-title p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }