/* ================================================
   DEVTRONICS — MAIN STYLESHEET
   Clean, modern, minimal
   ================================================ */

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

:root {
  --bg: #f9f9f7;
  --surface: #ffffff;
  --border: #e8e8e4;
  --text: #111110;
  --text-muted: #6b6b65;
  --accent: #0a66c2;
  --accent-hover: #0856a8;
  --accent-light: #e8f0fb;
  --tag: #f0f0ec;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 12px rgba(0,0,0,0.1), 0 12px 32px rgba(0,0,0,0.1);
  --nav-h: 68px;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- UTILITIES ---- */
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 40px; }
.section-header h2 { font-family: var(--font-display); font-size: 1.75rem; }
.link-arrow { color: var(--accent); text-decoration: none; font-weight: 500; font-size: 0.9rem; }
.link-arrow:hover { text-decoration: underline; }

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #fff;
  padding: 12px 28px; border-radius: var(--radius);
  text-decoration: none; font-weight: 500; font-size: 0.95rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  border: none; cursor: pointer;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(10,102,194,0.25); }

.btn-ghost {
  display: inline-flex; align-items: center;
  background: transparent; color: var(--text);
  padding: 12px 28px; border-radius: var(--radius);
  text-decoration: none; font-weight: 500; font-size: 0.95rem;
  border: 1.5px solid var(--border);
  transition: border-color var(--transition), background var(--transition);
  cursor: pointer;
}
.btn-ghost:hover { border-color: var(--text); background: var(--tag); }

/* ---- NAVIGATION ---- */
.nav-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(249,249,247,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1180px; margin: 0 auto; padding: 0 24px;
  height: var(--nav-h); display: flex; align-items: center; gap: 40px;
}
.logo {
  font-family: var(--font-display); font-size: 1.2rem; font-weight: 800;
  color: var(--text); text-decoration: none; letter-spacing: -0.02em;
}
.logo span { color: var(--accent); }
.nav-links { display: flex; gap: 28px; list-style: none; margin-left: auto; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-weight: 500; font-size: 0.9rem; transition: color var(--transition); }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.cart-btn {
  position: relative; display: flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: var(--radius); border: 1.5px solid var(--border);
  background: var(--surface); color: var(--text); text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.cart-btn:hover { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.cart-count {
  position: absolute; top: -6px; right: -6px;
  background: var(--accent); color: #fff;
  font-size: 10px; font-weight: 700;
  width: 18px; height: 18px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  display: none;
}
.cart-count.visible { display: flex; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); display: block; }
.mobile-menu { display: none; flex-direction: column; padding: 16px 24px; border-top: 1px solid var(--border); gap: 4px; }
.mobile-menu a { padding: 10px 0; color: var(--text); text-decoration: none; font-weight: 500; border-bottom: 1px solid var(--border); }
.mobile-menu.open { display: flex; }

/* ---- HERO ---- */
.hero {
  min-height: calc(90vh - var(--nav-h));
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 60px;
  max-width: 1180px; margin: 0 auto; padding: 80px 24px;
}
.hero-tag {
  display: inline-flex; align-items: center;
  background: var(--accent-light); color: var(--accent);
  padding: 6px 14px; border-radius: 100px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; margin-bottom: 20px;
}
.hero-content h1 {
  font-family: var(--font-display); font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800; line-height: 1.08; letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-content h1 em { font-style: normal; color: var(--accent); }
.hero-sub { color: var(--text-muted); font-size: 1.05rem; max-width: 420px; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-visual { display: flex; align-items: center; justify-content: center; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; width: 100%; max-width: 380px; }
.hg-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 20px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  text-align: center; transition: box-shadow var(--transition), transform var(--transition);
  animation: floatCard 4s ease-in-out infinite;
}
.hg-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.hg-1 { animation-delay: 0s; }
.hg-2 { animation-delay: 0.5s; }
.hg-3 { animation-delay: 1s; }
.hg-4 { animation-delay: 1.5s; }
.hg-icon { font-size: 2rem; }
.hg-card span { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); }
@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ---- CATEGORIES ---- */
.categories { background: var(--surface); }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cat-card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 24px;
  text-decoration: none; color: var(--text);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  display: block;
}
.cat-card:hover { border-color: var(--accent); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.cat-icon { font-size: 2rem; margin-bottom: 12px; }
.cat-card h3 { font-family: var(--font-display); font-size: 1rem; margin-bottom: 4px; }
.cat-card p { color: var(--text-muted); font-size: 0.85rem; }

/* ---- PRODUCT GRID ---- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.product-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex; flex-direction: column;
}
.product-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }

.product-img {
  aspect-ratio: 1; background: var(--tag);
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
}
.product-info { padding: 16px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.product-cat { font-size: 0.72rem; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }
.product-name { font-weight: 600; font-size: 0.95rem; line-height: 1.35; }
.product-name a { color: var(--text); text-decoration: none; }
.product-name a:hover { color: var(--accent); }
.product-price { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-top: auto; padding-top: 8px; }
.product-actions { padding: 0 16px 16px; }
.add-to-cart {
  width: 100%; padding: 10px;
  background: var(--text); color: #fff;
  border: none; border-radius: var(--radius); cursor: pointer;
  font-family: var(--font-body); font-weight: 600; font-size: 0.875rem;
  transition: background var(--transition);
}
.add-to-cart:hover { background: var(--accent); }
.add-to-cart.added { background: #16a34a; }

/* ---- USP STRIP ---- */
.usp-strip { background: var(--text); color: #fff; padding: 48px 0; }
.usp-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.usp-item { display: flex; align-items: flex-start; gap: 14px; }
.usp-icon { font-size: 1.6rem; flex-shrink: 0; }
.usp-item strong { display: block; font-weight: 600; font-size: 0.95rem; margin-bottom: 2px; }
.usp-item span { color: rgba(255,255,255,0.6); font-size: 0.82rem; }

/* ---- FOOTER ---- */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo { font-size: 1.1rem; display: inline-block; margin-bottom: 12px; }
.footer-brand p { color: var(--text-muted); font-size: 0.875rem; max-width: 260px; }
.footer-col h4 { font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li, .footer-col ul a { font-size: 0.875rem; color: var(--text-muted); text-decoration: none; }
.footer-col ul a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border); padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between;
}
.footer-bottom p, .footer-legal a { font-size: 0.8rem; color: var(--text-muted); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { text-decoration: none; }
.footer-legal a:hover { color: var(--accent); }

/* ---- TOAST ---- */
.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  background: var(--text); color: #fff;
  padding: 14px 20px; border-radius: var(--radius);
  font-size: 0.875rem; font-weight: 500;
  box-shadow: var(--shadow-hover);
  transform: translateY(20px); opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .usp-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 48px 24px; }
  .hero-visual { display: none; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .usp-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; gap: 8px; }
}

@media (max-width: 480px) {
  .cat-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .hero-cta { flex-direction: column; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}