/* =============================================
   VoltTech — Electronics Store Theme
   ============================================= */

:root {
  --bg:        #080c14;
  --bg-card:   #0f1520;
  --bg-hover:  #141e2e;
  --accent:    #3b82f6;
  --accent-2:  #2563eb;
  --accent-glow: rgba(59,130,246,.25);
  --text:      #e2e8f0;
  --text-m:    #7a8fa8;
  --border:    rgba(59,130,246,.15);
  --border-2:  rgba(255,255,255,.07);
  --white:     #ffffff;
  --success:   #22c55e;
  --radius:    12px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── ANNOUNCEMENT BAR ────────────────────────── */
.announce-bar { background: var(--accent); padding: 9px 24px; text-align: center; }
.announce-inner span { font-size: .82rem; font-weight: 600; color: var(--white); letter-spacing: .3px; }

/* ── NAVBAR ─────────────────────────────────── */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(8,12,20,.97); border-bottom: 1px solid var(--border-2); backdrop-filter: blur(16px); }
.nav.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.4); }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; gap: 20px; }
.nav-logo { display: flex; align-items: center; gap: 9px; font-size: 1.1rem; font-weight: 800; color: var(--white); text-decoration: none; white-space: nowrap; }
.logo-bolt { width: 28px; height: 28px; background: var(--accent); color: var(--white); border-radius: 7px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.nav-search { flex: 1; max-width: 420px; display: flex; align-items: center; gap: 10px; background: var(--bg-card); border: 1px solid var(--border-2); border-radius: 9px; padding: 9px 14px; }
.nav-search svg { color: var(--text-m); flex-shrink: 0; }
.nav-search input { background: none; border: none; color: var(--text); font-size: .88rem; font-family: inherit; outline: none; width: 100%; }
.nav-search input::placeholder { color: var(--text-m); }
.nav-links { display: flex; list-style: none; gap: 24px; margin-left: auto; }
.nav-links a { color: var(--text-m); text-decoration: none; font-size: .85rem; font-weight: 500; transition: color var(--transition); white-space: nowrap; }
.nav-links a:hover { color: var(--white); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav-icon { background: none; border: none; color: var(--text-m); cursor: pointer; padding: 8px; border-radius: 8px; transition: background var(--transition), color var(--transition); position: relative; }
.nav-icon:hover { background: var(--bg-hover); color: var(--white); }
.cart-count { position: absolute; top: 2px; right: 2px; background: var(--accent); color: var(--white); font-size: .6rem; font-weight: 700; width: 16px; height: 16px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.nav-phone { color: var(--text-m); font-size: .83rem; text-decoration: none; white-space: nowrap; transition: color var(--transition); }
.nav-phone:hover { color: var(--accent); }
.btn-primary { background: var(--accent); color: var(--white); border: none; padding: 10px 22px; border-radius: 9px; font-size: .88rem; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: background var(--transition), transform var(--transition), box-shadow var(--transition); font-family: inherit; }
.btn-primary:hover { background: var(--accent-2); transform: translateY(-1px); box-shadow: 0 6px 20px var(--accent-glow); }
.btn-primary.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: 11px; }
.btn-outline { background: transparent; border: 1.5px solid var(--border-2); color: var(--text); padding: 14px 28px; border-radius: 11px; font-size: 1rem; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: background var(--transition), border-color var(--transition); }
.btn-outline:hover { background: var(--bg-hover); border-color: var(--accent); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; display: block; }
.mobile-menu { display: none; flex-direction: column; gap: 4px; padding: 16px 24px 20px; border-top: 1px solid var(--border-2); background: rgba(8,12,20,.97); }
.mobile-menu a { color: var(--text-m); text-decoration: none; padding: 10px 0; font-weight: 500; border-bottom: 1px solid var(--border-2); transition: color var(--transition); }
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu.open { display: flex; }

/* ── HERO ───────────────────────────────────── */
.hero { padding: 80px 0 80px; position: relative; overflow: hidden; }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(59,130,246,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(59,130,246,.05) 1px, transparent 1px); background-size: 60px 60px; pointer-events: none; }
.hero-glow { position: absolute; width: 800px; height: 400px; background: radial-gradient(ellipse, rgba(59,130,246,.12), transparent 70%); top: -100px; right: -200px; pointer-events: none; }
.hero .container { display: grid; grid-template-columns: 1fr 340px; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(59,130,246,.15); border: 1px solid rgba(59,130,246,.3); color: var(--accent); padding: 5px 14px; border-radius: 100px; font-size: .78rem; font-weight: 700; margin-bottom: 20px; letter-spacing: .5px; }
.hero-headline { font-size: clamp(2rem, 3.5vw, 3.2rem); font-weight: 900; line-height: 1.1; letter-spacing: -.5px; color: var(--white); margin-bottom: 18px; }
.hero-sub { color: var(--text-m); font-size: 1rem; max-width: 480px; margin-bottom: 32px; line-height: 1.7; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
.hero-trust { display: flex; gap: 20px; flex-wrap: wrap; }
.hero-trust span { display: flex; align-items: center; gap: 6px; color: var(--text-m); font-size: .8rem; font-weight: 500; }
.hero-trust svg { color: var(--accent); }
.device-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }
.device-display { height: 160px; border-radius: 10px; margin-bottom: 16px; }
.device-name { font-size: .9rem; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.device-price { font-size: 1.2rem; font-weight: 800; color: var(--accent); margin-bottom: 16px; }
.device-btn { width: 100%; background: var(--accent); color: var(--white); border: none; border-radius: 9px; padding: 11px; font-size: .88rem; font-weight: 700; cursor: pointer; font-family: inherit; transition: background var(--transition); }
.device-btn:hover { background: var(--accent-2); }

/* ── SECTIONS ───────────────────────────────── */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-eyebrow { display: inline-block; color: var(--accent); font-size: .75rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }
.section-header h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; color: var(--white); letter-spacing: -.3px; }

/* ── CATEGORIES ─────────────────────────────── */
.categories-section { background: var(--bg-card); }
.categories-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.category-card { background: var(--bg); border: 1px solid var(--border-2); border-radius: var(--radius); padding: 22px 16px; text-decoration: none; display: flex; flex-direction: column; gap: 6px; position: relative; overflow: hidden; transition: transform var(--transition), border-color var(--transition); }
.category-card::before { content: ''; position: absolute; inset: 0; background: var(--bg, #1a1f35); opacity: .4; transition: opacity var(--transition); }
.category-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.category-card:hover::before { opacity: .6; }
.category-card h3 { font-size: .88rem; font-weight: 700; color: var(--white); position: relative; z-index: 1; line-height: 1.3; }
.category-card span { font-size: .74rem; color: var(--text-m); position: relative; z-index: 1; }
.cat-arrow { position: relative; z-index: 1; color: var(--accent); margin-top: auto; }

/* ── PRODUCTS ───────────────────────────────── */
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }
.filter-btn { background: var(--bg-card); border: 1px solid var(--border-2); color: var(--text-m); padding: 8px 18px; border-radius: 100px; font-size: .82rem; font-weight: 600; cursor: pointer; transition: background var(--transition), border-color var(--transition), color var(--transition); font-family: inherit; }
.filter-btn.active, .filter-btn:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card { background: var(--bg-card); border: 1px solid var(--border-2); border-radius: var(--radius); overflow: hidden; transition: transform var(--transition), border-color var(--transition); }
.product-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.product-card.hidden { display: none; }
.prod-image { height: 180px; position: relative; display: flex; align-items: center; justify-content: center; }
.prod-badge { position: absolute; top: 10px; left: 10px; padding: 3px 10px; border-radius: 100px; font-size: .68rem; font-weight: 700; }
.prod-badge[style*="New"] { background: rgba(34,197,94,.2); border: 1px solid rgba(34,197,94,.3); color: var(--success); }
[data-badge="new"] .prod-badge, [data-badge="sale"] .prod-badge, [data-badge="best seller"] .prod-badge { background: rgba(59,130,246,.2); border: 1px solid var(--border); color: var(--accent); }
.prod-wishlist { position: absolute; top: 10px; right: 10px; background: rgba(0,0,0,.4); border: none; color: var(--text-m); cursor: pointer; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: color var(--transition), background var(--transition); }
.prod-wishlist:hover { color: #ef4444; background: rgba(239,68,68,.2); }
.prod-body { padding: 16px; }
.prod-brand { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); }
.product-card h3 { font-size: .88rem; font-weight: 700; color: var(--white); margin: 5px 0 6px; line-height: 1.3; }
.prod-rating { display: flex; gap: 2px; color: #f59e0b; margin-bottom: 8px; }
.prod-price-row { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.prod-price { font-size: 1rem; font-weight: 800; color: var(--white); }
.prod-old-price { font-size: .8rem; color: var(--text-m); text-decoration: line-through; }
.prod-cart { width: 100%; background: transparent; border: 1.5px solid var(--border-2); color: var(--text); border-radius: 8px; padding: 9px; font-size: .82rem; font-weight: 700; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 6px; transition: background var(--transition), border-color var(--transition), color var(--transition); font-family: inherit; }
.prod-cart:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }

/* ── WHY VOLTTECH ───────────────────────────── */
.why-section { background: var(--bg-card); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.why-card { background: var(--bg); border: 1px solid var(--border-2); border-radius: var(--radius); padding: 24px; text-align: center; transition: border-color var(--transition), transform var(--transition); }
.why-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.why-icon { width: 48px; height: 48px; background: rgba(59,130,246,.15); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--accent); margin: 0 auto 14px; }
.why-card h3 { font-size: .95rem; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.why-card p { font-size: .82rem; color: var(--text-m); line-height: 1.65; }

/* ── BRANDS ─────────────────────────────────── */
.brands-section { border-top: 1px solid var(--border-2); border-bottom: 1px solid var(--border-2); padding: 40px 0; }
.brands-inner { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
.brands-label { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-m); white-space: nowrap; }
.brands-row { display: flex; gap: 32px; flex-wrap: wrap; align-items: center; }
.brand-item { font-size: 1rem; font-weight: 800; color: var(--text-m); opacity: .6; transition: opacity var(--transition), color var(--transition); cursor: default; letter-spacing: -.3px; }
.brand-item:hover { opacity: 1; color: var(--white); }

/* ── TESTIMONIALS ───────────────────────────── */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testimonial-card { background: var(--bg-card); border: 1px solid var(--border-2); border-radius: var(--radius); padding: 24px; transition: border-color var(--transition); }
.testimonial-card:hover { border-color: var(--accent); }
.t-stars { color: #f59e0b; font-size: .9rem; margin-bottom: 14px; letter-spacing: 2px; }
blockquote { color: var(--text-m); font-size: .88rem; line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.t-footer strong { font-size: .88rem; color: var(--white); display: block; }
.t-footer span { font-size: .78rem; color: var(--accent); }

/* ── NEWSLETTER ─────────────────────────────── */
.newsletter-section { background: linear-gradient(135deg, rgba(59,130,246,.12), rgba(59,130,246,.05)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 56px 0; }
.newsletter-card { display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap; }
.nl-text h3 { font-size: 1.4rem; font-weight: 800; color: var(--white); margin-bottom: 6px; }
.nl-text p { color: var(--text-m); font-size: .88rem; }
.nl-form { display: flex; gap: 10px; }
.nl-form input { background: var(--bg-card); border: 1.5px solid var(--border); border-radius: 9px; padding: 12px 18px; color: var(--text); font-size: .9rem; font-family: inherit; outline: none; min-width: 260px; transition: border-color var(--transition); }
.nl-form input:focus { border-color: var(--accent); }

/* ── FOOTER ─────────────────────────────────── */
.footer { background: #040810; border-top: 1px solid var(--border-2); padding: 56px 0 28px; }
.footer-top { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; margin-bottom: 48px; }
.footer-brand { max-width: 240px; display: flex; flex-direction: column; gap: 12px; }
.footer-logo { display: flex; align-items: center; gap: 8px; font-size: 1rem; font-weight: 800; color: var(--white); }
.footer-brand p { color: var(--text-m); font-size: .82rem; line-height: 1.6; }
.footer-links { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-m); margin-bottom: 4px; opacity: .6; }
.footer-col a { color: var(--text-m); text-decoration: none; font-size: .84rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; border-top: 1px solid var(--border-2); padding-top: 24px; font-size: .8rem; color: var(--text-m); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { color: var(--text-m); text-decoration: none; transition: color var(--transition); }
.footer-legal a:hover { color: var(--white); }

/* ── FLOATING ───────────────────────────────── */
.float-whatsapp { position: fixed; bottom: 80px; right: 24px; width: 52px; height: 52px; background: #25d366; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(37,211,102,.4); z-index: 90; transition: transform var(--transition); }
.float-whatsapp:hover { transform: scale(1.1); }
.back-to-top { position: fixed; bottom: 24px; right: 24px; width: 42px; height: 42px; background: var(--bg-card); border: 1px solid var(--border-2); color: var(--text); border-radius: 10px; cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 90; opacity: 0; transform: translateY(10px); transition: opacity var(--transition), transform var(--transition); }
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease calc(var(--delay, 0s)), transform .6s ease calc(var(--delay, 0s)); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ─────────────────────────────── */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-device { max-width: 340px; }
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-search { display: none; }
  .hamburger { display: flex; }
  .newsletter-card { flex-direction: column; align-items: flex-start; }
  .nl-form { flex-direction: column; width: 100%; }
  .nl-form input { min-width: unset; width: 100%; }
  .section { padding: 56px 0; }
}