/* ============================================================
   TOO PARAMETRIK SYSTEMS — Stylesheet
   DOS Terminal × CAD Precision
   ============================================================ */

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

:root {
    --bg: #0a0a0a;
    --bg-card: #0e0e0e;
    --bg-hover: #141414;
    --text: #e0e0e0;
    --dim: #555;
    --muted: #888;
    --border: #333;
    --border-light: #222;
    --accent: #e0e0e0;
    --font: 'IBM Plex Mono', 'Courier New', monospace;
}

::selection { background: var(--accent); color: var(--bg); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
    line-height: 1.6;
    min-height: 100vh;
}

/* Scanline overlay */
.scanline {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 9999;
    background: repeating-linear-gradient(
        0deg, transparent, transparent 2px,
        rgba(255,255,255,0.008) 2px, rgba(255,255,255,0.008) 4px
    );
}

/* ---- HEADER ---- */
.header {
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex; justify-content: space-between; align-items: center;
    position: sticky; top: 0;
    background: var(--bg); z-index: 100;
}

.logo {
    display: flex; align-items: center; gap: 10px;
    text-decoration: none; color: var(--text);
    font-size: 14px; font-weight: 700; letter-spacing: 3px;
}
.logo-img { height: 28px; filter: brightness(1.1); }
.dim { color: var(--dim); }

.nav { display: flex; gap: 4px; align-items: center; }

.nav-btn {
    background: transparent; color: var(--muted);
    border: 1px solid var(--border);
    padding: 4px 12px; font-family: var(--font);
    font-size: 11px; cursor: pointer;
    letter-spacing: 1px; text-transform: uppercase;
    text-decoration: none; transition: all 0.2s;
    display: inline-flex; align-items: center; gap: 4px;
}
.nav-btn:hover, .nav-btn.active {
    background: var(--accent); color: var(--bg);
    border-color: var(--accent);
}

.cart-badge {
    background: #fff; color: #000;
    padding: 1px 6px; font-size: 10px;
    font-weight: 700;
}

.nav-divider { width: 1px; height: 16px; background: var(--border); margin: 0 6px; }

/* Lang switcher */
.lang-switcher { position: relative; }
.lang-btn {
    background: transparent; border: 1px solid var(--border);
    padding: 4px 10px; cursor: pointer;
    display: flex; align-items: center; gap: 8px;
    color: var(--muted); font-family: var(--font);
    font-size: 10px; letter-spacing: 1px;
}
.lang-btn .arrow { font-size: 8px; opacity: 0.6; }
.flag { width: 18px; height: 12px; border-radius: 1px; }

.lang-dropdown {
    position: absolute; top: calc(100% + 4px); right: 0;
    background: #111; border: 1px solid var(--border);
    z-index: 200; min-width: 160px;
}
.lang-option {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 14px; color: #777;
    font-family: var(--font); font-size: 11px;
    text-decoration: none; border-bottom: 1px solid #1a1a1a;
    transition: all 0.15s;
}
.lang-option:hover, .lang-option.active { background: #1a1a1a; color: var(--text); }
.lang-option .check { font-size: 10px; color: var(--dim); }

.hidden { display: none !important; }

/* Mobile */
.mobile-toggle {
    display: none; background: transparent; border: 1px solid var(--border);
    color: var(--text); font-size: 20px; padding: 4px 10px;
    font-family: var(--font); cursor: pointer;
}

/* ---- BREADCRUMB ---- */
.breadcrumb {
    padding: 8px 24px; font-size: 10px; color: var(--border);
    border-bottom: 1px solid #1a1a1a; letter-spacing: 1px;
}

/* ---- MAIN ---- */
.main { max-width: 1100px; margin: 0 auto; padding: 32px 24px; }

/* ---- HERO ---- */
.hero {
    padding: 60px 0 80px; text-align: center; position: relative;
}
.hero-glow {
    position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 400px; height: 400px; opacity: 0.03;
    background: radial-gradient(circle, #fff 0%, transparent 70%);
}
.hero-logo { width: 320px; max-width: 80%; margin-bottom: 32px; filter: brightness(1.1); }
.hero-sub { font-size: 20px; font-weight: 300; letter-spacing: 8px; color: #ccc; margin-bottom: 12px; }
.hero-desc { font-size: 12px; color: var(--dim); letter-spacing: 3px; max-width: 500px; margin: 0 auto 8px; }
.hero-services { font-size: 12px; color: var(--dim); letter-spacing: 3px; margin-bottom: 40px; }
.hero-buttons { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }

/* Buttons */
.btn-primary {
    background: var(--accent); color: var(--bg); border: none;
    padding: 10px 32px; font-family: var(--font);
    font-size: 12px; letter-spacing: 2px; cursor: pointer;
    font-weight: 700; text-decoration: none;
    display: inline-block; transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.85; }

.btn-secondary {
    background: transparent; color: var(--muted);
    border: 1px solid #444; padding: 10px 32px;
    font-family: var(--font); font-size: 12px;
    letter-spacing: 2px; cursor: pointer;
    text-decoration: none; display: inline-block;
    transition: all 0.2s;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--text); }

.btn-small {
    background: transparent; color: var(--muted);
    border: 1px solid #444; padding: 4px 12px;
    font-family: var(--font); font-size: 10px;
    letter-spacing: 1px; cursor: pointer;
    text-decoration: none; transition: all 0.2s;
}
.btn-small:hover {
    background: var(--accent); color: var(--bg);
    border-color: var(--accent);
}

/* ---- SECTION TITLE ---- */
.section-title {
    font-size: 11px; letter-spacing: 4px; color: #666;
    text-transform: uppercase; margin-bottom: 24px;
    border-bottom: 1px solid var(--border-light); padding-bottom: 8px;
}

/* ---- SYSTEMS GRID ---- */
.systems-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1px; background: var(--border-light); margin-bottom: 48px;
}
.system-card {
    background: var(--bg-card); padding: 28px 24px;
    transition: background 0.3s;
}
.system-card:hover { background: var(--bg-hover); }
.system-icon { font-size: 18px; margin-bottom: 12px; color: #666; }
.system-title { font-size: 12px; font-weight: 700; letter-spacing: 2px; color: #ccc; margin-bottom: 12px; }
.system-desc { color: #666; font-size: 11px; margin-bottom: 16px; line-height: 1.7; }
.system-cmd { color: var(--border); font-size: 10px; font-style: italic; }

/* ---- STATS ---- */
.stats-bar {
    display: flex; justify-content: space-around; flex-wrap: wrap; gap: 16px;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    padding: 24px 0; margin-bottom: 48px;
}
.stat-item { text-align: center; }
.stat-val { font-size: 24px; font-weight: 700; color: var(--text); letter-spacing: 2px; }
.stat-label { font-size: 9px; color: var(--dim); letter-spacing: 3px; margin-top: 4px; }

/* ---- CTA ---- */
.cta-box {
    border: 1px solid var(--border-light); padding: 40px; text-align: center;
    background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg) 100%);
}
.cta-prompt { font-size: 10px; color: var(--dim); letter-spacing: 4px; margin-bottom: 12px; }
.cta-title { font-size: 16px; color: #ccc; letter-spacing: 4px; margin-bottom: 20px; }
.cta-desc { color: var(--dim); font-size: 11px; margin-bottom: 24px; }

/* ---- PRODUCT GRID ---- */
.filter-bar { display: flex; gap: 4px; margin-bottom: 24px; flex-wrap: wrap; }
.filter-btn {
    background: transparent; color: #666;
    border: 1px solid var(--border); padding: 4px 14px;
    font-family: var(--font); font-size: 10px;
    letter-spacing: 2px; cursor: pointer;
    text-decoration: none; transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
    background: var(--accent); color: var(--bg);
    border-color: var(--accent);
}

.product-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1px; background: var(--border-light);
}
.product-card {
    background: var(--bg-card); padding: 24px;
    display: flex; flex-direction: column;
    transition: background 0.2s;
}
.product-card:hover { background: var(--bg-hover); }
.product-ascii { font-size: 8px; color: var(--border); margin-bottom: 16px; line-height: 1.3; font-family: var(--font); }
.product-tag {
    font-size: 9px; letter-spacing: 2px; color: var(--dim);
    border: 1px solid var(--border); display: inline-block;
    padding: 1px 6px; margin-bottom: 10px; align-self: flex-start;
}
.product-name { font-size: 12px; font-weight: 700; letter-spacing: 1px; color: #ccc; margin-bottom: 8px; }
.product-desc { font-size: 11px; color: var(--dim); line-height: 1.6; flex: 1; margin-bottom: 16px; }
.product-footer {
    display: flex; justify-content: space-between; align-items: center;
    border-top: 1px solid var(--border-light); padding-top: 12px;
}
.product-price { font-size: 16px; font-weight: 700; color: var(--text); }

/* ---- CART ---- */
.cart-empty {
    border: 1px dashed var(--border); padding: 60px;
    text-align: center;
}
.cart-empty-text { color: var(--dim); font-size: 11px; margin-bottom: 16px; }

.cart-layout { display: grid; grid-template-columns: 1fr 320px; gap: 24px; }

.cart-table-header {
    display: grid; grid-template-columns: 1fr 60px auto auto;
    border-bottom: 1px solid var(--border); padding: 8px 0;
    font-size: 10px; color: var(--dim); letter-spacing: 2px; gap: 12px;
}
.cart-row {
    display: grid; grid-template-columns: 1fr 60px auto auto;
    border-bottom: 1px solid #1a1a1a; padding: 12px 0;
    align-items: center; gap: 12px;
}
.cart-item-name { font-size: 12px; color: #ccc; }
.cart-item-tag { font-size: 9px; color: #444; letter-spacing: 1px; }
.cart-item-qty { font-size: 12px; color: var(--muted); text-align: center; }
.cart-item-price { font-size: 13px; font-weight: 700; color: var(--text); text-align: right; }
.cart-remove-btn {
    background: transparent; color: var(--dim);
    border: 1px solid var(--border); padding: 2px 8px;
    font-family: var(--font); font-size: 10px; cursor: pointer;
    transition: all 0.2s;
}
.cart-remove-btn:hover { color: var(--text); border-color: var(--text); }

/* Checkout panel */
.checkout-panel {
    border: 1px solid var(--border); padding: 24px;
    background: var(--bg-card); height: fit-content;
}
.checkout-label { font-size: 10px; letter-spacing: 3px; color: var(--dim); margin-bottom: 20px; }
.checkout-row {
    display: flex; justify-content: space-between;
    margin-bottom: 8px; font-size: 11px; color: var(--muted);
}
.checkout-total {
    display: flex; justify-content: space-between;
    border-top: 1px solid var(--border); padding-top: 12px;
    margin-top: 12px; font-size: 14px; font-weight: 700; color: var(--text);
}

/* Form fields */
.form-group { margin-bottom: 12px; }
.form-label { font-size: 10px; color: var(--dim); letter-spacing: 2px; margin-bottom: 6px; display: block; }
.form-input, .form-textarea {
    width: 100%; background: var(--bg);
    border: 1px solid var(--border); color: var(--text);
    padding: 8px 10px; font-family: var(--font);
    font-size: 12px; outline: none; transition: border-color 0.2s;
}
.form-input:focus, .form-textarea:focus { border-color: var(--accent); }
.form-textarea { min-height: 60px; resize: vertical; }
.form-submit { width: 100%; margin-top: 8px; }
.form-note { font-size: 9px; color: #444; margin-top: 10px; text-align: center; }

/* ---- TOAST ---- */
.toast {
    position: fixed; top: 60px; right: 24px; z-index: 200;
    background: var(--accent); color: var(--bg);
    padding: 10px 20px; font-size: 11px;
    font-family: var(--font); letter-spacing: 1px;
    animation: fadeInOut 2s ease;
}
@keyframes fadeInOut {
    0% { opacity: 0; transform: translateY(-10px); }
    15% { opacity: 1; transform: translateY(0); }
    85% { opacity: 1; }
    100% { opacity: 0; }
}

/* ---- FOOTER ---- */
.footer {
    border-top: 1px solid var(--border-light); padding: 24px;
    text-align: center; color: #444; font-size: 10px; letter-spacing: 2px;
}
.footer-line { margin: 8px 0; color: var(--border); }

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .systems-grid, .product-grid { grid-template-columns: 1fr; }
    .cart-layout { grid-template-columns: 1fr; }
    .nav { display: none; }
    .nav.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--border); padding: 12px; gap: 8px; }
    .mobile-toggle { display: block; }
    .hero-sub { font-size: 16px; letter-spacing: 4px; }
    .stats-bar { gap: 24px; }
}

@media (max-width: 480px) {
    .header { padding: 10px 16px; }
    .main { padding: 20px 16px; }
    .hero { padding: 30px 0 40px; }
    .hero-logo { width: 200px; }
}