/* ═══════════════════════════════════════
   VOLTEA ELEKTRO — Shared Styles
   voltea.sk
═══════════════════════════════════════ */

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

:root {
  --volt: #F5B800;
  --volt-light: #FFD740;
  --volt-dark: #C48E00;
  --dark:  #0B0C0E;
  --dark2: #111316;
  --dark3: #191C22;
  --dark4: #232830;
  --mid:   #333A47;
  --light: #8A93A8;
  --white: #F0F2F5;
  --green: #22c55e;
  --red:   #ef4444;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Barlow', sans-serif;
  background: var(--dark);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--dark2); }
::-webkit-scrollbar-thumb { background: var(--volt); border-radius: 3px; }

/* ── NOISE ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.022; pointer-events: none; z-index: 9999;
}

/* ── LAYOUT ── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 2rem; }

/* ── TYPOGRAPHY ── */
.tag {
  display: inline-block;
  background: rgba(245,184,0,0.1);
  color: var(--volt);
  border: 1px solid rgba(245,184,0,0.3);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 0.3rem 0.85rem; border-radius: 2px; margin-bottom: 1.2rem;
}
.section-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1; letter-spacing: -0.01em; text-transform: uppercase;
  margin-bottom: 1rem;
}
.volt { color: var(--volt); }
.section-sub {
  color: var(--light); font-size: 1rem; font-weight: 300;
  max-width: 520px; line-height: 1.75;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 0.92rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.85rem 1.9rem; border-radius: 3px;
  text-decoration: none; cursor: pointer; border: none;
  transition: all 0.2s ease;
}
.btn-primary { background: var(--volt); color: var(--dark); }
.btn-primary:hover { background: var(--volt-light); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.22); }
.btn-outline:hover { border-color: var(--volt); color: var(--volt); }
.btn-sm { padding: 0.6rem 1.3rem; font-size: 0.82rem; }

/* ── NAVIGATION ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1.2rem 0; transition: all 0.3s ease;
}
nav.scrolled {
  background: rgba(11,12,14,0.96); backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(245,184,0,0.12); padding: 0.75rem 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.logo {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 900; font-size: 1.65rem; letter-spacing: -0.02em;
  text-transform: uppercase; text-decoration: none; color: var(--white); line-height: 1;
}
.logo span { color: var(--volt); }
.logo-sub {
  display: block; font-size: 0.52rem; font-weight: 400;
  letter-spacing: 0.2em; color: var(--light);
  text-transform: uppercase; margin-top: 0.1rem;
}
.nav-links { display: flex; align-items: center; gap: 2.2rem; list-style: none; }
.nav-links a {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 600;
  font-size: 0.86rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--light); text-decoration: none; transition: color 0.2s;
  position: relative; padding-bottom: 2px;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 1px; background: var(--volt); transform: scaleX(0);
  transition: transform 0.25s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--volt); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-cta { display: flex; align-items: center; gap: 1rem; }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 0.3rem;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--white); transition: all 0.3s; }

@media (max-width: 960px) {
  .nav-links, .nav-cta .btn { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(11,12,14,0.97); padding: 1.5rem 2rem 2rem;
    border-bottom: 1px solid rgba(245,184,0,0.15); gap: 1.2rem;
    backdrop-filter: blur(14px);
  }
}

/* ── PAGE HERO (subpages) ── */
.page-hero {
  padding: 9rem 0 4rem; background: var(--dark2);
  border-bottom: 1px solid rgba(245,184,0,0.08);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(245,184,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,184,0,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 80% 100% at 50% 0%, black 20%, transparent 100%);
}
.page-hero-title {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 900;
  font-size: clamp(2.5rem, 6vw, 4.5rem); line-height: 0.95;
  letter-spacing: -0.02em; text-transform: uppercase;
}
.breadcrumb {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; color: var(--light); margin-bottom: 1.5rem;
  font-family: 'Barlow Condensed', sans-serif; letter-spacing: 0.08em;
  text-transform: uppercase;
}
.breadcrumb a { color: var(--light); text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--volt); }
.breadcrumb span { color: var(--volt); }

/* ── TRUST BAR ── */
.trust-bar {
  background: var(--dark3);
  border-top: 1px solid rgba(245,184,0,0.08);
  border-bottom: 1px solid rgba(245,184,0,0.08);
  padding: 1.4rem 0;
}
.trust-inner {
  display: flex; align-items: center; justify-content: space-around;
  flex-wrap: wrap; gap: 1.2rem;
}
.trust-item {
  display: flex; align-items: center; gap: 0.6rem;
  font-family: 'Barlow Condensed', sans-serif; font-weight: 600;
  font-size: 0.88rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--light);
}
.trust-icon { font-size: 1.2rem; color: var(--volt); }

/* ── SERVICE CARDS ── */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.5px; background: rgba(245,184,0,0.08);
  border: 1.5px solid rgba(245,184,0,0.08); border-radius: 8px; overflow: hidden;
}
.service-card {
  background: var(--dark2); padding: 2.2rem 1.8rem;
  transition: background 0.3s; position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--volt);
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease;
}
.service-card:hover { background: var(--dark3); }
.service-card:hover::before { transform: scaleX(1); }
.service-number {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800;
  font-size: 3.5rem; color: rgba(245,184,0,0.07); line-height: 1;
  margin-bottom: 0.8rem; letter-spacing: -0.04em;
}
.service-icon { font-size: 1.8rem; margin-bottom: 0.9rem; display: block; }
.service-name {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 1.2rem; text-transform: uppercase; letter-spacing: 0.04em;
  margin-bottom: 0.7rem; color: var(--white);
}
.service-desc { color: var(--light); font-size: 0.88rem; line-height: 1.7; font-weight: 300; }
.service-list { list-style: none; margin-top: 1rem; }
.service-list li {
  font-size: 0.82rem; color: var(--light); padding: 0.28rem 0;
  display: flex; align-items: flex-start; gap: 0.5rem;
}
.service-list li::before { content: '—'; color: var(--volt); font-weight: 700; flex-shrink: 0; }

@media (max-width: 900px) { .services-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .services-grid { grid-template-columns: 1fr; } }

/* ── PROCESS STEPS ── */
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; position: relative;
}
.process-steps::before {
  content: ''; position: absolute;
  top: 35px; left: 12.5%; right: 12.5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,184,0,0.3), rgba(245,184,0,0.3), transparent);
}
.process-step { text-align: center; padding: 0 1.2rem; }
.step-num {
  width: 70px; height: 70px; background: var(--dark3);
  border: 1.5px solid rgba(245,184,0,0.3); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800;
  font-size: 1.4rem; color: var(--volt); margin: 0 auto 1.3rem; position: relative; z-index: 1;
}
.step-title {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 1rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.5rem;
}
.step-desc { font-size: 0.83rem; color: var(--light); line-height: 1.6; font-weight: 300; }

@media (max-width: 700px) {
  .process-steps { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .process-steps::before { display: none; }
}

/* ── FOOTER ── */
footer {
  background: var(--dark); border-top: 1px solid rgba(255,255,255,0.05);
  padding: 3.5rem 0 2rem;
}
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem; margin-bottom: 2.5rem;
}
.footer-brand p { color: var(--light); font-size: 0.86rem; line-height: 1.75; margin-top: 1rem; max-width: 260px; }
.footer-col h4 {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--volt); margin-bottom: 1.2rem;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.55rem; }
.footer-col ul li a {
  color: var(--light); text-decoration: none;
  font-size: 0.86rem; transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05); padding-top: 1.5rem;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 0.8rem;
}
.footer-bottom p { font-size: 0.78rem; color: rgba(138,147,168,0.5); }
.footer-seo { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.03); }
.footer-seo p { font-size: 0.73rem; color: rgba(138,147,168,0.35); line-height: 1.85; }

@media (max-width: 900px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ── REVEAL ANIMATION ── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── FLOATING CTA ── */
.float-cta {
  display: none; position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 998;
  background: var(--volt); color: var(--dark);
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800;
  font-size: 0.88rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.9rem 1.5rem; border-radius: 50px; text-decoration: none;
  box-shadow: 0 8px 28px rgba(245,184,0,0.28);
}
@media (max-width: 768px) { .float-cta { display: block; } }

/* ── CONTACT FORM ── */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.38rem; }
.form-group label {
  font-family: 'Barlow Condensed', sans-serif; font-size: 0.76rem;
  font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--light);
}
.form-group input,
.form-group textarea,
.form-group select {
  background: var(--dark3); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px; color: var(--white);
  font-family: 'Barlow', sans-serif; font-size: 0.93rem;
  padding: 0.78rem 1rem; outline: none; transition: border-color 0.2s; width: 100%;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: rgba(245,184,0,0.45); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select { appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238A93A8' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 1rem center;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* ── REVIEW CARDS ── */
.review-card {
  background: var(--dark3); border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px; padding: 1.8rem;
}
.review-stars { color: var(--volt); font-size: 1rem; letter-spacing: 0.05em; margin-bottom: 1rem; }
.review-text { font-size: 0.9rem; color: var(--light); line-height: 1.75; font-weight: 300; font-style: italic; margin-bottom: 1.2rem; }
.review-author { display: flex; align-items: center; gap: 0.8rem; }
.review-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(245,184,0,0.12); border: 1px solid rgba(245,184,0,0.25);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 0.9rem; color: var(--volt);
}
.review-name { font-weight: 600; font-size: 0.9rem; }
.review-location { font-size: 0.76rem; color: var(--light); }

/* ── BLOG CARDS ── */
.blog-card {
  background: var(--dark2); border: 1px solid rgba(255,255,255,0.05);
  border-radius: 8px; overflow: hidden; transition: border-color 0.3s, transform 0.3s;
  text-decoration: none; color: inherit; display: flex; flex-direction: column;
}
.blog-card:hover { border-color: rgba(245,184,0,0.25); transform: translateY(-4px); }
.blog-card-img {
  height: 180px; background: var(--dark3);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; position: relative; overflow: hidden;
}
.blog-card-img::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, var(--dark2));
}
.blog-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.blog-card-cat {
  font-family: 'Barlow Condensed', sans-serif; font-size: 0.72rem;
  font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--volt); margin-bottom: 0.6rem;
}
.blog-card-title {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 1.15rem; text-transform: uppercase; letter-spacing: 0.03em;
  line-height: 1.2; margin-bottom: 0.8rem;
}
.blog-card-excerpt { font-size: 0.85rem; color: var(--light); line-height: 1.65; font-weight: 300; flex: 1; }
.blog-card-meta {
  display: flex; align-items: center; gap: 1rem; margin-top: 1.2rem;
  font-size: 0.78rem; color: var(--light);
  padding-top: 1rem; border-top: 1px solid rgba(255,255,255,0.05);
}
.blog-card-meta span { display: flex; align-items: center; gap: 0.3rem; }

/* ── CALCULATOR ── */
.calc-box {
  background: var(--dark3); border: 1px solid rgba(245,184,0,0.15);
  border-radius: 12px; padding: 2.5rem;
}
.calc-group { margin-bottom: 1.8rem; }
.calc-label {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--light); margin-bottom: 0.8rem; display: block;
}
.calc-options { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.calc-opt {
  padding: 0.6rem 1.1rem; background: var(--dark4);
  border: 1px solid rgba(255,255,255,0.08); border-radius: 4px;
  font-family: 'Barlow Condensed', sans-serif; font-weight: 600;
  font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--light); cursor: pointer; transition: all 0.2s;
}
.calc-opt:hover { border-color: rgba(245,184,0,0.3); color: var(--white); }
.calc-opt.selected { background: rgba(245,184,0,0.12); border-color: var(--volt); color: var(--volt); }
.calc-slider-wrap { display: flex; align-items: center; gap: 1rem; }
.calc-slider {
  flex: 1; -webkit-appearance: none; appearance: none;
  height: 4px; background: var(--dark4); border-radius: 2px; outline: none;
}
.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 20px; height: 20px;
  border-radius: 50%; background: var(--volt); cursor: pointer;
  border: 2px solid var(--dark3);
}
.calc-value {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800;
  font-size: 1.4rem; color: var(--volt); min-width: 60px; text-align: right;
}
.calc-result {
  background: rgba(245,184,0,0.06); border: 1.5px solid rgba(245,184,0,0.25);
  border-radius: 8px; padding: 1.8rem; text-align: center; margin-top: 0.5rem;
}
.calc-price {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 900;
  font-size: 3rem; color: var(--volt); line-height: 1;
}
.calc-price-label { font-size: 0.82rem; color: var(--light); margin-top: 0.4rem; margin-bottom: 1.5rem; }
.calc-note { font-size: 0.78rem; color: var(--light); margin-top: 1rem; line-height: 1.6; }

/* ── GALLERY ── */
.gallery-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
}
.gallery-item {
  position: relative; border-radius: 6px; overflow: hidden;
  aspect-ratio: 4/3; background: var(--dark3); cursor: pointer;
  border: 1px solid rgba(255,255,255,0.05); transition: border-color 0.3s;
}
.gallery-item:hover { border-color: rgba(245,184,0,0.3); }
.gallery-item-inner {
  width: 100%; height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 0.8rem;
  transition: transform 0.4s ease;
}
.gallery-item:hover .gallery-item-inner { transform: scale(1.04); }
.gallery-icon { font-size: 2.5rem; }
.gallery-cat {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--light);
}
.gallery-overlay {
  position: absolute; inset: 0;
  background: rgba(11,12,14,0.7); display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay-text {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--volt);
}
@media (max-width: 600px) { .gallery-grid { grid-template-columns: 1fr 1fr; } }

/* ── SECTION SPACING ── */
.section { padding: 5.5rem 0; }
.section-sm { padding: 3.5rem 0; }
.section-alt { background: var(--dark2); }

/* ── WHATSAPP FLOATING BUTTON ── */
.float-wa {
  display: flex; position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 997;
  width: 52px; height: 52px; border-radius: 50%;
  background: #25D366; color: #fff;
  align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(37,211,102,0.35);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}
.float-wa:hover { transform: scale(1.08); box-shadow: 0 8px 32px rgba(37,211,102,0.5); }
@media (max-width: 768px) {
  .float-wa { bottom: 5rem; }
}