/* ============================================
   MH3D - 3D Druck & Design
   Professional Theme v4.0 - Dark/Light Mode
   ============================================ */

/* --- CSS Variables: DARK MODE (default) --- */
:root {
    --bg-body: #0b0d11;
    --bg-primary: #0f1117;
    --bg-secondary: #141821;
    --bg-card: #1a1f2e;
    --bg-card-hover: #222838;
    --bg-input: #141821;
    --bg-glass: rgba(20, 24, 33, 0.85);
    --text: #e2e6ef;
    --text-secondary: #8b93a7;
    --text-muted: #505a6e;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.12);
    --accent2: #8b5cf6;
    --accent-warm: #f97316;
    --success: #22c55e;
    --warning: #eab308;
    --danger: #ef4444;
    --border: #1e2535;
    --border-light: #2a3345;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 4px;
    --shadow: 0 2px 16px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
    --shadow-accent: 0 4px 20px rgba(59,130,246,0.15);
    --transition: all 0.25s ease;
    --font: 'Inter', -apple-system, 'Segoe UI', system-ui, sans-serif;
    --hero-gradient: linear-gradient(135deg, #0f1117 0%, #141821 50%, #1a1f2e 100%);
    --card-gradient: linear-gradient(145deg, rgba(255,255,255,0.02) 0%, transparent 100%);
    --navbar-bg: rgba(15, 17, 23, 0.92);
    --navbar-blur: blur(16px) saturate(1.2);
}

/* --- LIGHT MODE --- */
[data-theme="light"] {
    --bg-body: #f5f7fa;
    --bg-primary: #ffffff;
    --bg-secondary: #f0f2f5;
    --bg-card: #ffffff;
    --bg-card-hover: #f5f7fa;
    --bg-input: #f0f2f5;
    --bg-glass: rgba(255, 255, 255, 0.88);
    --text: #1a1d26;
    --text-secondary: #5a6175;
    --text-muted: #9299ab;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.08);
    --accent2: #7c3aed;
    --border: #e2e6ef;
    --border-light: #d0d5e0;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
    --shadow-accent: 0 4px 16px rgba(37,99,235,0.1);
    --hero-gradient: linear-gradient(135deg, #f5f7fa 0%, #e8ecf4 50%, #dfe4ee 100%);
    --card-gradient: linear-gradient(145deg, rgba(255,255,255,0.8) 0%, rgba(240,242,245,0.4) 100%);
    --navbar-bg: rgba(255, 255, 255, 0.92);
    --navbar-blur: blur(16px) saturate(1.4);
}
[data-theme="light"] .card::before,
[data-theme="light"] .card::after { border-color: transparent !important; }
[data-theme="light"] .hero::after { opacity: 0.3; }
[data-theme="light"] body::before { background-image:
    linear-gradient(rgba(37,99,235,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.03) 1px, transparent 1px);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg-body);
    color: var(--text);
    line-height: 1.65;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background 0.3s, color 0.3s;
}
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; display: block; }
::selection { background: rgba(59,130,246,0.25); color: var(--text); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Blueprint grid background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(59,130,246,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59,130,246,0.015) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: 0;
}

/* --- Layout --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 800px; margin: 0 auto; padding: 0 24px; }

/* ========================
   THEME TOGGLE
   ======================== */
.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    width: 40px; height: 40px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
    flex-shrink: 0;
}
.theme-toggle:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-accent);
    transform: scale(1.05);
}

/* ========================
   NAVBAR
   ======================== */
.navbar {
    background: var(--navbar-bg);
    backdrop-filter: var(--navbar-blur);
    -webkit-backdrop-filter: var(--navbar-blur);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0 24px;
    transition: background 0.3s;
}
.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}
.navbar-brand img { height: 40px; width: auto; }
.navbar-brand:hover { color: var(--accent); }

.nav-links { display: flex; list-style: none; gap: 1px; align-items: center; }
.nav-links a {
    color: var(--text-secondary);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.85rem;
    transition: var(--transition);
    position: relative;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--accent);
    background: var(--accent-glow);
}

.nav-right { display: flex; align-items: center; gap: 8px; }

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
}
.nav-toggle:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-links {
        display: none;
        position: absolute;
        top: 64px; left: 0; right: 0;
        background: var(--navbar-bg);
        backdrop-filter: var(--navbar-blur);
        flex-direction: column;
        padding: 12px;
        border-bottom: 1px solid var(--border);
        gap: 2px;
    }
    .nav-links.active { display: flex; }
    .nav-links a { padding: 12px 16px; width: 100%; }
}

/* ========================
   HERO
   ======================== */
.hero {
    padding: 72px 24px 64px;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: var(--hero-gradient);
}
/* 3D print layer lines */
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image: repeating-linear-gradient(0deg, transparent, transparent 4px, rgba(59,130,246,0.012) 4px, rgba(59,130,246,0.012) 5px);
    pointer-events: none; z-index: 1;
}
/* Animated nozzle line */
.hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--accent2), var(--accent), transparent);
    opacity: 0.5;
    animation: printLine 5s ease-in-out infinite;
    z-index: 2;
}
@keyframes printLine {
    0% { transform: scaleX(0); transform-origin: left; }
    50% { transform: scaleX(1); transform-origin: left; }
    50.1% { transform: scaleX(1); transform-origin: right; }
    100% { transform: scaleX(0); transform-origin: right; }
}
.hero-content { position: relative; z-index: 3; }
.hero h1 {
    font-size: clamp(1.8rem, 4.5vw, 3rem);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.03em;
    color: var(--text);
}
.hero h1 .accent-text {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 32px;
    line-height: 1.7;
}
.hero-logo {
    max-width: 300px;
    width: 70%;
    margin: 0 auto 28px;
    filter: drop-shadow(0 4px 20px rgba(59,130,246,0.1));
}

/* ========================
   BUTTONS
   ======================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: var(--font);
    letter-spacing: 0.01em;
    white-space: nowrap;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 1px 8px rgba(59,130,246,0.2);
}
.btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
    box-shadow: var(--shadow-accent);
    transform: translateY(-1px);
}
.btn-secondary {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid rgba(255,255,255,0.25);
}
[data-theme="light"] .btn-secondary {
    border-color: rgba(0,0,0,0.2);
}
.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.btn-danger { background: var(--danger); color: #fff; border: 1px solid rgba(255,255,255,0.15); }
.btn-danger:hover { background: #dc2626; }
.btn-primary { border: 1px solid transparent; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 13px 30px; font-size: 0.95rem; }

/* ========================
   CARDS
   ======================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}
.card::before, .card::after {
    content: '';
    position: absolute;
    width: 14px; height: 14px;
    border-color: transparent;
    border-style: solid;
    transition: border-color 0.3s;
    z-index: 2;
    pointer-events: none;
}
.card::before { top: 5px; left: 5px; border-width: 1.5px 0 0 1.5px; border-radius: 2px 0 0 0; }
.card::after { bottom: 5px; right: 5px; border-width: 0 1.5px 1.5px 0; border-radius: 0 0 2px 0; }
.card:hover {
    border-color: rgba(59,130,246,0.2);
    box-shadow: var(--shadow), 0 0 0 1px rgba(59,130,246,0.05);
    transform: translateY(-2px);
}
.card:hover::before, .card:hover::after { border-color: var(--accent); }
.card-img {
    width: 100%;
    height: 210px;
    object-fit: cover;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}
.card-body { padding: 20px; position: relative; z-index: 1; }
.card-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.card-text { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 10px; line-height: 1.6; }
.card-price { font-size: 1.2rem; font-weight: 800; color: var(--accent); }

/* ========================
   GRID
   ======================== */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

/* ========================
   FORMS
   ======================== */
.form-group { margin-bottom: 20px; }
.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    font-family: var(--font);
    transition: var(--transition);
}
.form-control:focus {
    outline: none;
    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' fill='%238b93a7' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border-light);
    border-radius: var(--radius);
    padding: 44px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-input);
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--accent);
    background: var(--accent-glow);
}
.upload-zone-icon { font-size: 2.5rem; margin-bottom: 12px; opacity: 0.7; }
.upload-zone-text { color: var(--text-secondary); font-size: 0.9rem; }
.upload-zone-text span { color: var(--accent); font-weight: 600; }

/* STL Viewer */
.stl-viewer {
    width: 100%; height: 400px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    position: relative; overflow: hidden;
}
.stl-viewer canvas { width: 100% !important; height: 100% !important; }

/* ========================
   SECTIONS
   ======================== */
.section { padding: 72px 0; position: relative; }
.section-title {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 8px;
    text-align: center;
    letter-spacing: -0.02em;
    color: var(--text);
}
.section-subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 44px;
    font-size: 0.95rem;
    max-width: 520px;
    margin-left: auto; margin-right: auto;
}
.section-divider {
    height: 1px; border: none;
    background: linear-gradient(90deg, transparent, var(--border-light), var(--accent), var(--border-light), transparent);
    opacity: 0.35; margin: 0;
}

/* ========================
   FEATURE ICONS
   ======================== */
.feature-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    background: var(--accent-glow);
    border: 1px solid rgba(59,130,246,0.12);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 14px;
    transition: var(--transition);
}
.card:hover .feature-icon {
    background: rgba(59,130,246,0.15);
    border-color: rgba(59,130,246,0.3);
    box-shadow: 0 0 20px rgba(59,130,246,0.1);
    transform: scale(1.05);
}

/* ========================
   BADGES
   ======================== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-xs);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.badge-success { background: rgba(34,197,94,0.1); color: var(--success); }
.badge-warning { background: rgba(234,179,8,0.1); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.1); color: var(--danger); }
.badge-info { background: var(--accent-glow); color: var(--accent); }

/* ========================
   TABLES
   ======================== */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
table { width: 100%; border-collapse: collapse; }
th, td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); }
th {
    background: var(--bg-secondary);
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.08em;
}
tr:hover { background: var(--accent-glow); }
td img { width: 44px; height: 44px; object-fit: cover; border-radius: var(--radius-sm); }

/* ========================
   ALERTS
   ======================== */
.alert {
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.88rem;
    border-left: 3px solid;
    display: flex; align-items: center; gap: 10px;
}
.alert-success { background: rgba(34,197,94,0.06); border-color: var(--success); color: var(--success); }
.alert-danger { background: rgba(239,68,68,0.06); border-color: var(--danger); color: var(--danger); }
.alert-info { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }

/* ========================
   FOOTER
   ======================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 48px 24px 24px;
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: background 0.3s;
}
.footer a { color: var(--text-secondary); display: block; margin-bottom: 7px; font-size: 0.83rem; }
.footer a:hover { color: var(--accent); padding-left: 3px; }
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 32px;
    margin-bottom: 28px;
}
.footer-col h4 {
    color: var(--accent);
    margin-bottom: 14px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 18px;
    display: flex; flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    font-size: 0.76rem;
}
.footer-legal { display: flex; gap: 18px; }
.footer-legal a { display: inline; margin: 0; font-size: 0.76rem; }

/* Social Links */
.social-links { display: flex; flex-direction: column; gap: 2px; }
.social-link {
    display: flex !important;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    color: var(--text-secondary) !important;
    transition: var(--transition);
    border-radius: 6px;
    margin-bottom: 0 !important;
    font-size: 0.83rem !important;
}
.social-link:hover {
    color: var(--accent) !important;
    background: var(--accent-glow);
}
.social-icon { font-size: 0.95rem; }

/* ========================
   STAT CARDS / CONTENT
   ======================== */
.hero-sm { padding: 44px 24px 32px; }
.stat-card { text-align: center; padding: 36px 20px; }
.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 2px;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
}
.stat-label { color: var(--text-secondary); font-size: 0.85rem; font-weight: 500; }
.stat-sub { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

.content-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    line-height: 1.8;
}
.content-block h2 { color: var(--accent); margin: 20px 0 10px; }
.content-block h3 { margin: 18px 0 8px; }
.content-block p { margin: 8px 0; color: var(--text-secondary); }
.content-block ul, .content-block ol { margin: 12px 0; padding-left: 22px; color: var(--text-secondary); }
.content-block a { color: var(--accent); }

/* ========================
   BANNER SLOTS
   ======================== */
.banner-slot { text-align: center; overflow: hidden; }
.banner-slot a { display: block; }
.banner-img { max-width: 100%; height: auto; margin: 0 auto; display: block; }
.banner-top { background: var(--bg-secondary); }
.banner-hero_below, .banner-products_above, .banner-products_below,
.banner-content_mid, .banner-footer_above, .banner-about_top, .banner-order_top {
    padding: 16px; max-width: 1200px; margin: 0 auto;
}

/* ========================
   ANALYTICS CHARTS
   ======================== */
.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    min-height: 200px;
}
.stat-bar { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.stat-bar-label { min-width: 100px; font-size: 0.82rem; color: var(--text-secondary); }
.stat-bar-fill {
    height: 20px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    border-radius: 4px;
    min-width: 4px;
    transition: width 0.5s ease;
}
.stat-bar-value { font-size: 0.82rem; color: var(--text-muted); min-width: 36px; }

/* ========================
   ADMIN LAYOUT
   ======================== */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 14px 0;
    position: fixed;
    top: 0; bottom: 0;
    overflow-y: auto;
    z-index: 100;
    transition: background 0.3s;
}
.admin-sidebar-brand {
    padding: 10px 18px 20px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent);
    border-bottom: 1px solid var(--border);
    margin-bottom: 12px;
}
.admin-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 18px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.84rem;
    transition: var(--transition);
    border-left: 2px solid transparent;
}
.admin-nav a:hover, .admin-nav a.active {
    color: var(--accent);
    background: var(--accent-glow);
    border-left-color: var(--accent);
}
.admin-content {
    flex: 1;
    margin-left: 240px;
    padding: 24px;
    background: var(--bg-body);
    transition: background 0.3s;
}
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}
.admin-header h1 { font-size: 1.4rem; font-weight: 800; letter-spacing: -0.02em; }

/* Login */
.login-page {
    display: flex; justify-content: center; align-items: center;
    min-height: 100vh;
    background: var(--bg-body);
}
.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    width: 100%;
    max-width: 380px;
    box-shadow: var(--shadow-lg);
}
.login-box h1 { text-align: center; margin-bottom: 24px; color: var(--accent); font-size: 1.4rem; }

/* ========================
   PRODUCT SHOP LINKS
   ======================== */
.product-shop-links { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 6px; }
.shop-link-btn {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 5px 10px;
    background: rgba(59,130,246,0.04);
    border: 1px solid var(--platform-color, var(--border));
    border-radius: 6px;
    color: var(--text);
    font-size: 0.73rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}
.shop-link-btn:hover {
    background: var(--platform-color, var(--accent));
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 3px 12px rgba(0,0,0,0.2);
}
.shop-link-logo {
    display: flex; align-items: center;
    color: var(--platform-color, var(--accent));
    transition: var(--transition);
}
.shop-link-btn:hover .shop-link-logo { color: #fff; }
.partner-badge {
    font-size: 0.55rem;
    padding: 1px 4px;
    background: var(--accent-warm);
    color: #fff;
    border-radius: 3px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ========================
   CUSTOMER AREA
   ======================== */
.customer-nav {
    display: flex;
    gap: 2px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.customer-nav a {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.84rem;
    transition: var(--transition);
}
.customer-nav a:hover { color: var(--text); background: var(--bg-card); }
.customer-nav a.active {
    color: var(--accent);
    background: var(--bg-card);
    box-shadow: var(--shadow);
}

.order-timeline { position: relative; padding-left: 24px; margin: 16px 0; }
.order-timeline::before {
    content: '';
    position: absolute;
    left: 8px; top: 0; bottom: 0;
    width: 2px;
    background: var(--border);
}
.timeline-item {
    position: relative;
    padding-bottom: 16px;
    padding-left: 16px;
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -20px; top: 4px;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--border-light);
    border: 2px solid var(--bg-card);
}
.timeline-item.active::before { background: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }
.timeline-item.done::before { background: var(--success); }
.timeline-date { font-size: 0.75rem; color: var(--text-muted); }
.timeline-text { font-size: 0.88rem; color: var(--text); }

.message-bubble {
    padding: 12px 16px;
    border-radius: 12px;
    max-width: 80%;
    margin-bottom: 10px;
    font-size: 0.88rem;
    line-height: 1.5;
}
.message-bubble.sent {
    background: var(--accent);
    color: #fff;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}
.message-bubble.received {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    border-bottom-left-radius: 4px;
}
.message-meta {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ========================
   COST CALCULATOR
   ======================== */
.calc-result {
    background: var(--accent-glow);
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
}
.calc-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
}
.calc-breakdown {
    margin-top: 12px;
    font-size: 0.82rem;
    color: var(--text-secondary);
}
.calc-breakdown div { padding: 3px 0; display: flex; justify-content: space-between; }

/* ========================
   GLOW / EFFECTS
   ======================== */
.glow-border { position: relative; }
.glow-border::after {
    content: '';
    position: absolute; inset: -1px;
    border-radius: inherit;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s;
}
.glow-border:hover::after { opacity: 1; }

/* ========================
   UTILITIES
   ======================== */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-secondary { color: var(--text-secondary); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 16px; }
.gap-1 { gap: 8px; }
.hidden { display: none; }

/* ========================
   ANIMATIONS
   ======================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes spin { to { transform: rotate(360deg); } }
.fade-in { opacity: 0; animation: fadeInUp 0.5s ease forwards; }
.fade-in:nth-child(2) { animation-delay: 0.06s; }
.fade-in:nth-child(3) { animation-delay: 0.12s; }
.fade-in:nth-child(4) { animation-delay: 0.18s; }
.fade-in:nth-child(5) { animation-delay: 0.24s; }
.fade-in:nth-child(6) { animation-delay: 0.3s; }
.reveal {
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.spinner {
    width: 24px; height: 24px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* Toast */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 9999; }
.toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 18px;
    margin-bottom: 8px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.3s ease;
    min-width: 260px;
}
.toast-success { border-left: 3px solid var(--success); }
.toast-error { border-left: 3px solid var(--danger); }

/* ========================
   RESPONSIVE
   ======================== */
@media (max-width: 768px) {
    .admin-sidebar { display: none; }
    .admin-content { margin-left: 0; padding: 16px; }
    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .hero { padding: 44px 16px 36px; }
    .section { padding: 44px 0; }
    .section-title { font-size: 1.4rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .footer-legal { justify-content: center; }
    .content-block { padding: 20px; }
    .customer-nav { flex-direction: column; }
    .message-bubble { max-width: 90%; }
}
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: 1fr; gap: 12px; }
}

/* Page content & product description HTML formatting */
.page-content, .product-description {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}
.page-content h1, .product-description h1 { font-size: 1.5rem; font-weight: 800; color: var(--text-primary); margin: 24px 0 12px; }
.page-content h2, .product-description h2 { font-size: 1.25rem; font-weight: 700; color: var(--text-primary); margin: 20px 0 10px; }
.page-content h3, .product-description h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin: 16px 0 8px; }
.page-content p, .product-description p { margin-bottom: 12px; }
.page-content ul, .page-content ol, .product-description ul, .product-description ol { margin: 8px 0 16px 20px; }
.page-content li, .product-description li { margin-bottom: 6px; }
.page-content a, .product-description a { color: var(--accent); text-decoration: underline; }
.page-content a:hover, .product-description a:hover { opacity: 0.8; }
.page-content strong, .product-description strong { color: var(--text-primary); font-weight: 700; }
.page-content blockquote, .product-description blockquote { border-left: 3px solid var(--accent); padding: 12px 20px; margin: 16px 0; background: var(--bg-secondary); border-radius: 0 8px 8px 0; }
.page-content table, .product-description table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.page-content th, .page-content td, .product-description th, .product-description td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; font-size: 0.9rem; }
.page-content th, .product-description th { background: var(--bg-secondary); font-weight: 700; color: var(--text-primary); }
.page-content hr, .product-description hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }