:root {
    --bg: #0a0e13;
    --bg-2: #0f1620;
    --surface: #121821;
    --surface-2: #1a222d;
    --border: rgba(255,255,255,0.08);
    --border-strong: rgba(255,255,255,0.14);
    --text: #e5e7eb;
    --text-dim: #cbd5e1;
    --muted: #94a3b8;
    --accent: #4e63ee;
    --accent-hover: #00e67a;
    --accent-dim: rgba(78,99,238,0.15);
    --accent-glow: 0 0 32px rgba(78,99,238,0.35);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.4);
    --radius: 14px;
    --radius-lg: 22px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: var(--text);
}

a { color: var(--accent); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--accent-hover); }
p { color: var(--text-dim); }

img, svg { display: block; max-width: 100%; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Top bar ─────────────────────────────────────── */
.topbar {
    background: linear-gradient(90deg, var(--accent) 0%, #22d3ee 100%);
    color: #0a0e13;
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.3px;
}
.topbar span { margin: 0 14px; display: inline-block; }

/* ─── Header ──────────────────────────────────────── */
.header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(10,14,19,0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 24px;
    max-width: 1280px; margin: 0 auto;
    gap: 24px;
}
.logo {
    display: flex; align-items: center; gap: 10px;
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -0.5px;
}
.logo:hover { color: var(--text); }
.logo-mark {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--accent) 0%, #22d3ee 100%);
    color: var(--bg);
    border-radius: 10px;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 900;
    font-size: 18px;
    box-shadow: 0 0 20px rgba(78,99,238,0.4);
}
.nav {
    display: flex; gap: 32px; align-items: center;
}
.nav a {
    color: var(--text);
    font-weight: 500;
    font-size: 15px;
    position: relative;
}
.nav a:not(.nav-cta).active::after,
.nav a:not(.nav-cta):hover::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -6px;
    height: 2px; background: var(--accent);
}
.nav a:hover { color: var(--accent); }
.nav-cta {
    background: var(--accent);
    color: var(--bg) !important;
    padding: 10px 18px !important;
    border-radius: 999px;
    font-weight: 700 !important;
    font-size: 14px !important;
    display: inline-flex; align-items: center; gap: 8px;
    box-shadow: var(--accent-glow);
    transition: all .25s ease;
}
.nav-cta:hover {
    background: var(--accent-hover) !important;
    color: var(--bg) !important;
    transform: translateY(-1px);
}
.nav-cta::after { display: none !important; }
.cart-badge {
    background: var(--bg);
    color: var(--accent);
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}
.nav-toggle {
    display: none;
    background: none; border: none; color: var(--text);
    font-size: 24px; cursor: pointer;
}

/* ─── Hero ────────────────────────────────────────── */
.hero {
    padding: 90px 0 60px;
    background: radial-gradient(circle at 75% 30%, rgba(78,99,238,0.08) 0%, transparent 55%),
                radial-gradient(circle at 10% 80%, rgba(34,211,238,0.04) 0%, transparent 45%),
                var(--bg);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    mask-image: radial-gradient(circle at center, black 0%, transparent 70%);
}
.hero-kicker {
    display: inline-block;
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 18px;
    padding: 4px 12px;
    background: var(--accent-dim);
    border-radius: 999px;
    position: relative;
}
.hero h1 {
    font-size: clamp(34px, 5.5vw, 68px);
    max-width: 920px;
    margin-bottom: 22px;
    font-weight: 800;
    position: relative;
}
.hero h1 .accent {
    background: linear-gradient(135deg, var(--accent) 0%, #22d3ee 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-lead {
    font-size: 18px;
    max-width: 580px;
    color: var(--text-dim);
    margin-bottom: 32px;
    position: relative;
}

/* ─── Buttons ─────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 26px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.3px;
    transition: all .25s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary {
    background: var(--accent);
    color: var(--bg) !important;
    box-shadow: var(--accent-glow);
}
.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--bg) !important;
    transform: translateY(-2px);
    box-shadow: 0 0 48px rgba(78,99,238,0.55);
}
.btn-secondary {
    background: transparent;
    color: var(--text) !important;
    border: 1.5px solid var(--border-strong);
}
.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent) !important;
    transform: translateY(-1px);
}
.btn-block { width: 100%; justify-content: center; }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; position: relative; }

/* ─── Trust bar ───────────────────────────────────── */
.trust {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 70px;
    padding: 32px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: relative;
}
.trust-item { display: flex; align-items: center; gap: 14px; }
.trust-item .icon {
    width: 44px; height: 44px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    color: var(--accent);
    flex-shrink: 0;
}
.trust-item h4 { font-size: 14px; margin-bottom: 2px; }
.trust-item p { font-size: 12px; color: var(--muted); }

/* ─── Section ─────────────────────────────────────── */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-2); }
.section-kicker {
    display: block;
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 10px;
    text-align: center;
}
.section h2 {
    font-size: clamp(28px, 4vw, 46px);
    text-align: center;
    margin-bottom: 14px;
}
.section-lead {
    color: var(--muted);
    text-align: center;
    max-width: 620px;
    margin: 0 auto 48px;
    font-size: 16px;
}

/* ─── Líneas (categorías) ─────────────────────────── */
.lines {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.line-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all .3s ease;
    position: relative;
    overflow: hidden;
}
.line-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity .3s;
}
.line-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 0 40px rgba(78,99,238,0.12);
}
.line-card:hover::before { opacity: 1; }
.line-card .tier {
    font-size: 18px;
    margin-bottom: 14px;
    letter-spacing: 3px;
}
.line-card.tier-1 .tier { color: #22d3ee; }
.line-card.tier-2 .tier { color: #a855f7; }
.line-card.tier-3 .tier { color: #f59e0b; }
.line-card.tier-4 .tier { color: var(--accent); }
.line-card h3 { font-size: 22px; margin-bottom: 10px; }
.line-card p { color: var(--muted); font-size: 14px; margin-bottom: 22px; min-height: 42px; }
.line-card .arrow {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--accent);
    display: inline-flex; align-items: center; gap: 6px;
}
.line-card.featured {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(78,99,238,0.03) 100%);
    border: 1.5px solid var(--accent);
}

/* ─── Features ────────────────────────────────────── */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.feature {
    text-align: center;
    padding: 32px 24px;
}
.feature .icon {
    width: 64px; height: 64px;
    margin: 0 auto 18px;
    background: var(--accent-dim);
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    color: var(--accent);
}
.feature h3 { font-size: 20px; margin-bottom: 10px; }
.feature p { color: var(--muted); font-size: 15px; }

/* ─── CTA banner ──────────────────────────────────── */
.cta-banner {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(78,99,238,0.05) 100%);
    border: 1px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    max-width: 1280px;
    margin: 40px auto;
    position: relative;
    overflow: hidden;
}
.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(78,99,238,0.1), transparent 60%);
    pointer-events: none;
}
.cta-banner h2 { font-size: clamp(24px, 3.5vw, 36px); margin-bottom: 12px; position: relative; }
.cta-banner p { color: var(--muted); margin-bottom: 28px; position: relative; }
.cta-banner .btn { position: relative; }

/* ─── Producto grid (tienda/home) ─────────────────── */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 22px;
}
.product-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all .3s;
    display: flex; flex-direction: column;
}
.product-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}
.product-card .img {
    aspect-ratio: 4/3;
    background: var(--bg-2);
    display: flex; align-items: center; justify-content: center;
    color: var(--muted);
    font-size: 13px;
}
.product-card .img img { width: 100%; height: 100%; object-fit: cover; }
.product-card .info { padding: 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product-card h3 { font-size: 16px; line-height: 1.35; color: var(--text); }
.product-card h3 a { color: inherit; }
.product-card h3 a:hover { color: var(--accent); }
.product-card .price { font-size: 20px; font-weight: 700; color: var(--accent); margin-top: auto; }
.product-card .sku { font-size: 11px; color: var(--muted); letter-spacing: 0.5px; }

/* ─── Empty state ─────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 80px 24px;
    color: var(--muted);
}
.empty-state .icon { font-size: 48px; margin-bottom: 16px; display: block; }
.empty-state h3 { color: var(--text); margin-bottom: 8px; }

/* ─── Footer ──────────────────────────────────────── */
.footer {
    background: #05070a;
    border-top: 1px solid var(--border);
    padding: 70px 24px 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.3fr;
    gap: 48px;
    max-width: 1280px;
    margin: 0 auto 40px;
}
.footer h5 {
    color: var(--accent);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 18px;
}
.footer p, .footer li { font-size: 14px; color: var(--muted); margin-bottom: 10px; }
.footer ul { list-style: none; }
.footer a { color: var(--muted); }
.footer a:hover { color: var(--accent); }
.logo--footer { margin-bottom: 16px; }
.socials { display: flex; gap: 10px; margin-top: 18px; }
.socials a {
    width: 38px; height: 38px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--text-dim);
    transition: all .2s;
}
.socials a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}
.footer-bottom {
    text-align: center;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 13px;
    max-width: 1280px;
    margin: 0 auto;
}

/* ─── WhatsApp floating ───────────────────────────── */
.wa-float {
    position: fixed;
    bottom: 24px; right: 24px;
    width: 58px; height: 58px;
    background: #25D366;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: white;
    box-shadow: 0 8px 32px rgba(37,211,102,0.4);
    z-index: 99;
    animation: wa-pulse 2.5s infinite;
    transition: transform .25s;
}
.wa-float:hover { transform: scale(1.1); color: white; }
@keyframes wa-pulse {
    0%, 100% { box-shadow: 0 8px 32px rgba(37,211,102,0.4); }
    50% { box-shadow: 0 8px 48px rgba(37,211,102,0.75); }
}

/* ─── Page Hero (sub-pages) ───────────────────────── */
.page-hero {
    padding: 80px 0 40px;
    text-align: center;
    background: radial-gradient(circle at center, rgba(78,99,238,0.06), transparent 60%);
}
.page-hero h1 { font-size: clamp(30px, 4vw, 48px); margin-bottom: 12px; }
.page-hero p { color: var(--muted); max-width: 600px; margin: 0 auto; }

/* ─── Forms ───────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dim);
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: inherit;
    font-size: 15px;
    transition: border-color .2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(78,99,238,0.1);
}
.form-group textarea { min-height: 140px; resize: vertical; }

/* ─── Cart / Checkout tables ──────────────────────── */
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th, .cart-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.cart-table th { color: var(--muted); font-weight: 600; font-size: 12px; letter-spacing: 1px; text-transform: uppercase; }
.cart-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.cart-qty input { width: 60px; text-align: center; padding: 6px; }

.total-row { font-size: 18px; font-weight: 700; }
.total-row td { padding: 20px 16px; border-top: 2px solid var(--border-strong); }
.total-row .amount { color: var(--accent); font-size: 22px; }

/* ─── Responsive ──────────────────────────────────── */
@media (max-width: 900px) {
    .nav { gap: 10px !important; flex-shrink: 1; }
    .nav > a:not(.nav-cta) { display: none; }
    .nav-toggle { display: inline-flex; align-items:center; justify-content:center; width:40px; height:40px; border-radius:8px; background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.1); font-size:20px; line-height:1; order:99; flex-shrink:0; }
    .nav-toggle:hover { background:rgba(255,255,255,.1); }
    .nav-cta { padding: 10px 14px !important; font-size: 13px !important; }
    .nav-cta svg { width: 14px !important; height: 14px !important; }
    .header-inner { padding: 14px 16px !important; gap: 12px !important; }
    .logo img { height: 36px !important; }
    .lines { grid-template-columns: 1fr 1fr; }
    .trust { grid-template-columns: 1fr 1fr; gap: 16px; }
    .features { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .hero { padding: 60px 0 40px; }
    .topbar span { margin: 0 8px; font-size: 11px; }
    .topbar span:nth-child(3) { display: none; }

    /* Mobile menu overlay — activado por .nav.open (ver main.js) */
    .nav.open {
        position: fixed;
        inset: 0;
        background: rgba(10,14,19,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 92px 24px 32px;
        gap: 4px;
        z-index: 1000;
        overflow-y: auto;
    }
    .nav.open a { display: flex !important; align-items: center; gap: 12px; width: 100%; padding: 18px 8px; font-size: 20px; font-weight: 600; border-bottom: 1px solid rgba(255,255,255,.06); }
    .nav.open a::after { display: none !important; }
    .nav.open a.nav-cta { margin-top: 20px; justify-content: center; padding: 16px; font-size: 16px !important; border-bottom: none; }
    .nav.open a.nav-arma { color: var(--accent) !important; }
    .nav.open a.nav-arma svg.lucide { width: 22px; height: 22px; }
    .nav.open .nav-toggle { position: absolute; top: 18px; right: 18px; z-index: 2; }
    body.menu-open { overflow: hidden; }
}
@media (max-width: 560px) {
    .lines, .trust, .footer-grid { grid-template-columns: 1fr; }
    .logo-text { display: none; }
    .nav { gap: 12px; }
    .hero-lead { font-size: 16px; }
}