/* ============================================
   Paul's 3D-Druck — Modern Minimalist Theme
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=Space+Mono:wght@400;700&display=swap');

:root {
    --bg: #0a0a0a;
    --bg-card: #141414;
    --bg-hover: #1a1a1a;
    --border: #222;
    --border-light: #333;
    --text: #e0e0e0;
    --text-muted: #888;
    --text-heading: #ffffff;
    --accent: #22d3ee;
    --accent-dim: rgba(34, 211, 238, 0.1);
    --accent-hover: #06b6d4;
    --danger: #f87171;
    --success: #4ade80;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 2px 20px rgba(0,0,0,0.3);
    --max-width: 1100px;
    --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

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

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

/* Header / Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-family: 'Space Mono', monospace;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-heading);
    letter-spacing: -0.5px;
}

.nav-logo span { color: var(--accent); }

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    transition: color var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-heading);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

main {
    flex: 1;
    padding: 3rem 0;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 5rem 0 4rem;
}

.hero-badge {
    display: inline-block;
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    background: var(--accent-dim);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    border: 1px solid rgba(34, 211, 238, 0.2);
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    color: var(--text-heading);
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto 2rem;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #0a0a0a;
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: #0a0a0a;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(34, 211, 238, 0.3);
}

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

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

.btn-danger {
    background: var(--danger);
    color: #0a0a0a;
}

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

.btn-sm {
    padding: 0.45rem 0.9rem;
    font-size: 0.8rem;
}

/* Product Grid */
.section-header {
    margin-bottom: 2.5rem;
}

.section-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-heading);
    letter-spacing: -0.5px;
}

.section-header p {
    color: var(--text-muted);
    margin-top: 0.4rem;
}

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

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}

.product-card:hover {
    border-color: var(--border-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.product-image {
    aspect-ratio: 4/3;
    background: #1a1a1a;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-image .placeholder {
    font-size: 3rem;
    opacity: 0.15;
}

.product-badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(8px);
    color: var(--accent);
    border: 1px solid rgba(34, 211, 238, 0.3);
}

.product-info {
    padding: 1.25rem;
}

.product-info h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-heading);
    margin-bottom: 0.4rem;
}

.product-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-price {
    font-family: 'Space Mono', monospace;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--accent);
}

/* Forms */
.form-section {
    max-width: 560px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.7rem 0.9rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

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

.form-group input[type="file"] {
    padding: 0.5rem;
}

/* Alerts */
.alert {
    padding: 0.9rem 1.2rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    border: 1px solid;
}

.alert-success {
    background: rgba(74, 222, 128, 0.08);
    border-color: rgba(74, 222, 128, 0.2);
    color: var(--success);
}

.alert-error {
    background: rgba(248, 113, 113, 0.08);
    border-color: rgba(248, 113, 113, 0.2);
    color: var(--danger);
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Admin Styles */
.admin-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    min-height: 100vh;
}

.admin-sidebar {
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    padding: 1.5rem;
}

.admin-sidebar h2 {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.admin-nav {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.88rem;
    transition: all var(--transition);
}

.admin-nav a:hover,
.admin-nav a.active {
    background: var(--bg-hover);
    color: var(--text-heading);
}

.admin-main {
    padding: 2rem 2.5rem;
}

.admin-main h1 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-heading);
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 0.8rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
}

.data-table th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.data-table .actions {
    display: flex;
    gap: 0.5rem;
}

/* Status Badge */
.status {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-active { background: rgba(74,222,128,0.12); color: var(--success); }
.status-inactive { background: rgba(248,113,113,0.12); color: var(--danger); }
.status-unread { background: var(--accent-dim); color: var(--accent); }

/* Login Page */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    width: 100%;
    max-width: 380px;
}

.login-box h1 {
    font-size: 1.3rem;
    color: var(--text-heading);
    margin-bottom: 0.4rem;
}

.login-box p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

/* Stats Cards */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

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

.stat-card .label {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.3rem;
}

.stat-card .value {
    font-family: 'Space Mono', monospace;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-heading);
}

/* Page Title */
.page-title {
    margin-bottom: 2rem;
}

.page-title h1 {
    font-size: 1.8rem;
    color: var(--text-heading);
    letter-spacing: -0.5px;
}

.page-title p {
    color: var(--text-muted);
    margin-top: 0.3rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-toggle { display: block; }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10,10,10,0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1rem 2rem;
        gap: 0;
        border-bottom: 1px solid var(--border);
    }

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

    .nav-links a {
        padding: 0.8rem 0;
        border-bottom: 1px solid var(--border);
    }

    .hero { padding: 3rem 0 2rem; }
    .hero h1 { font-size: 1.8rem; }

    .admin-layout {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .admin-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .admin-main { padding: 1.5rem; }

    .data-table { font-size: 0.8rem; }
    .data-table th, .data-table td { padding: 0.5rem; }
}