/* ============================================
   LayerPath Labs — Bold + Industrial Theme
   ============================================ */

:root {
    /* Colors */
    --bg:           #111111;
    --bg-alt:       #1a1a1a;
    --bg-card:      #222222;
    --bg-elevated:  #2a2a2a;
    --border:       #333333;
    --border-light: #444444;

    --primary:      #FF6600;
    --primary-dark: #CC5200;
    --primary-glow: rgba(255, 102, 0, 0.15);

    --text:         #E8E8E8;
    --text-muted:   #999999;
    --text-dim:     #666666;
    --text-white:   #FFFFFF;

    --success:      #22C55E;
    --error:        #EF4444;
    --warning:      #F59E0B;
    --info:         #3B82F6;

    /* Typography */
    --font-heading: 'Barlow Condensed', system-ui, sans-serif;
    --font-body:    'Inter', system-ui, sans-serif;

    /* Spacing */
    --container:    1200px;
    --gap:          1.5rem;
    --radius:       4px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

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

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

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.1;
    color: var(--text-white);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 900; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.1rem; }

.section-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

/* ---- Header ---- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(17, 17, 17, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 2px solid var(--primary);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-white);
}

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

.logo-mark {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    background: var(--primary);
    color: var(--bg);
    padding: 0.2em 0.45em;
    letter-spacing: 0.05em;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.main-nav a {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 0.5rem 0.85rem;
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--primary) !important;
    color: var(--bg) !important;
    padding: 0.5rem 1.2rem !important;
    font-weight: 700 !important;
    margin-left: 0.5rem;
}

.nav-cta:hover {
    background: var(--primary-dark) !important;
    color: var(--text-white) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-white);
    transition: transform 0.3s;
}

/* ---- Flash Messages ---- */
.flash {
    padding: 0.85rem 0;
    font-weight: 500;
    font-size: 0.9rem;
}
.flash-success { background: rgba(34, 197, 94, 0.15); color: var(--success); border-bottom: 1px solid rgba(34, 197, 94, 0.3); }
.flash-error   { background: rgba(239, 68, 68, 0.15); color: var(--error); border-bottom: 1px solid rgba(239, 68, 68, 0.3); }
.flash-warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); border-bottom: 1px solid rgba(245, 158, 11, 0.3); }
.flash-info    { background: rgba(59, 130, 246, 0.15); color: var(--info); border-bottom: 1px solid rgba(59, 130, 246, 0.3); }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 1.75rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg);
}
.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--text-white);
}

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

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

.btn-large {
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
}

/* ---- Hero ---- */
.hero {
    padding: 6rem 0 5rem;
    background: var(--bg);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(255, 102, 0, 0.03) 49px, rgba(255, 102, 0, 0.03) 50px),
        repeating-linear-gradient(90deg, transparent, transparent 49px, rgba(255, 102, 0, 0.03) 49px, rgba(255, 102, 0, 0.03) 50px);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    margin-bottom: 1.25rem;
}

.hero h1 span {
    color: var(--primary);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 2rem;
}

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

/* ---- Sections ---- */
.section {
    padding: 5rem 0;
}

.section-alt {
    background: var(--bg-alt);
}

.section-header {
    margin-bottom: 3rem;
}

.section-header h2 {
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
}

/* ---- Cards ---- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--gap);
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2rem;
    transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.card h3 {
    margin-bottom: 0.75rem;
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ---- Product Cards ---- */
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: border-color 0.2s, transform 0.2s;
    text-decoration: none;
    display: block;
    color: var(--text);
}

.product-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    color: var(--text);
}

.product-card-image {
    aspect-ratio: 4/3;
    background: var(--bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: 3rem;
}

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

.product-card-body {
    padding: 1.25rem;
}

.product-card-body h3 {
    font-size: 1.1rem;
    margin-bottom: 0.35rem;
}

.product-card-body .material {
    font-size: 0.8rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-family: var(--font-heading);
    font-weight: 600;
}

.product-card-body .price {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-white);
    margin-top: 0.5rem;
}

/* ---- Portfolio Grid ---- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--gap);
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
    opacity: 0;
    transition: opacity 0.3s;
}

.portfolio-item:hover .portfolio-item-overlay {
    opacity: 1;
}

.portfolio-item-overlay h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.portfolio-item-overlay .material {
    font-size: 0.8rem;
    color: var(--primary);
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ---- FAQ ---- */
.faq-list {
    max-width: 800px;
}

.faq-item {
    border-bottom: 1px solid var(--border);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 1.25rem 0;
    background: none;
    border: none;
    color: var(--text-white);
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s;
}

.faq-question:hover { color: var(--primary); }

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary);
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-item.open .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 500px;
    padding-bottom: 1.25rem;
}

.faq-answer p {
    color: var(--text-muted);
    line-height: 1.7;
}

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

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg);
    border: 2px solid var(--border);
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
}

.form-input::placeholder {
    color: var(--text-dim);
}

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

.form-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2.5rem;
    max-width: 480px;
    margin: 0 auto;
}

.form-footer {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-footer a {
    color: var(--primary);
}

/* ---- Upload Zone ---- */
.upload-zone {
    border: 2px dashed var(--border-light);
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-glow);
}

.upload-zone-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.upload-zone p {
    color: var(--text-muted);
}

.upload-zone .formats {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-top: 0.5rem;
}

/* ---- 3D Viewer ---- */
.viewer-container {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--bg);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.viewer-container canvas {
    width: 100% !important;
    height: 100% !important;
}

.viewer-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-dim);
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ---- Account ---- */
.account-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--gap);
    margin-bottom: 2.5rem;
}

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

.stat-card .stat-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-heading);
}

/* ---- Table ---- */
.table-wrap {
    overflow-x: auto;
}

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

th, td {
    padding: 0.85rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-alt);
}

td {
    font-size: 0.95rem;
}

.status-badge {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.25em 0.75em;
    border: 1px solid;
}

.status-pending    { color: var(--warning); border-color: var(--warning); }
.status-quoted     { color: var(--info);    border-color: var(--info); }
.status-accepted   { color: var(--info);    border-color: var(--info); }
.status-paid       { color: var(--success); border-color: var(--success); }
.status-processing { color: var(--primary); border-color: var(--primary); }
.status-printing   { color: var(--primary); border-color: var(--primary); }
.status-shipped    { color: var(--info);    border-color: var(--info); }
.status-complete   { color: var(--success); border-color: var(--success); }
.status-cancelled  { color: var(--error);   border-color: var(--error); }

/* ---- Empty State ---- */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state h3 {
    color: var(--text);
    margin-bottom: 0.5rem;
}

.empty-state p {
    margin-bottom: 1.5rem;
}

/* ---- Product Detail ---- */
.product-detail {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.product-info h1 {
    margin-bottom: 0.5rem;
}

.product-info .material {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.product-info .description {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.product-info .price {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--text-white);
    margin-bottom: 1.5rem;
}

/* ---- Services ---- */
.service-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 3rem 0;
    border-bottom: 1px solid var(--border);
}

.service-block:last-child { border-bottom: none; }

.service-block h3 { margin-bottom: 1rem; }

.service-block p {
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.service-visual {
    background: var(--bg-card);
    border: 1px solid var(--border);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.material-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.material-list li {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.35em 0.85em;
    border: 1px solid var(--border-light);
    color: var(--text);
}

/* ---- 404 ---- */
.error-page {
    text-align: center;
    padding: 6rem 2rem;
}

.error-page h1 {
    font-size: 6rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.error-page p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* ---- Footer ---- */
.site-footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.75rem;
}

.footer-links h4 {
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    color: var(--text);
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-links a:hover { color: var(--primary); }

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-dim);
}

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

    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 2px solid var(--primary);
        flex-direction: column;
        padding: 1rem;
    }

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

    .main-nav a {
        padding: 0.75rem 1rem;
    }

    .nav-cta {
        margin-left: 0 !important;
        text-align: center;
    }

    .hero { padding: 3.5rem 0 3rem; }

    .service-block { grid-template-columns: 1fr; }
    .product-detail { grid-template-columns: 1fr; }

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

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

    .form-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
}