/* =========================================================
   NexaStyle Motors Autoparts — style.css
   Premium Dark Theme
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Playfair+Display:wght@700;800;900&display=swap');

/* ---------- Design Tokens ---------- */
:root {
  --ff-body: 'Inter', system-ui, sans-serif;
  --ff-display: 'Playfair Display', serif;

  --clr-bg:       #09090b;
  --clr-surface:  #111114;
  --clr-surface2: #18181b;
  --clr-border:   #27272a;

  --clr-text:     #e4e4e7;
  --clr-text-dim: #a1a1aa;
  --clr-text-inv: #09090b;

  --clr-accent:   #d97706;   /* warm amber */
  --clr-accent-h: #f59e0b;
  --clr-accent-d: #b45309;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-card: 0 1px 3px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.25);
  --shadow-lift: 0 8px 30px rgba(0,0,0,.45);

  --transition: .25s cubic-bezier(.4,0,.2,1);
  --max-w: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--ff-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display:block; max-width:100%; height:auto; }

a { color: var(--clr-accent-h); text-decoration:none; transition: color var(--transition); }
a:hover { color: var(--clr-accent); }

.container { width:92%; max-width: var(--max-w); margin:0 auto; }

/* ===== BUTTONS ===== */
.btn {
  display:inline-flex; align-items:center; gap:.5rem;
  padding: .8rem 1.6rem;
  font-family: var(--ff-body);
  font-weight:600; font-size:.95rem;
  border-radius: var(--radius-sm);
  border:none; cursor:pointer;
  transition: all var(--transition);
  text-decoration:none;
}
.btn-primary {
  background: var(--clr-accent);
  color:#fff;
}
.btn-primary:hover {
  background: var(--clr-accent-d);
  transform:translateY(-2px);
  box-shadow: 0 6px 20px rgba(217,119,6,.35);
  color:#fff;
}
.btn-outline {
  background:transparent;
  border: 1.5px solid var(--clr-border);
  color: var(--clr-text);
}
.btn-outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent-h);
  transform:translateY(-2px);
}

/* ===== SECTION HELPERS ===== */
.section-tag {
  display:inline-block;
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color: var(--clr-accent);
  margin-bottom:.75rem;
}
.section-tag.center { display:block; text-align:center; }

.section-title {
  font-family: var(--ff-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  text-align:center;
  margin-bottom:3rem;
  color: var(--clr-text);
  letter-spacing: -.02em;
}

/* ========================================
   HEADER
   ======================================== */
.site-header {
  position:fixed; top:0; left:0; width:100%;
  z-index:1000;
  background: rgba(9,9,11,.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: rgba(9,9,11,.96);
  box-shadow: 0 2px 20px rgba(0,0,0,.5);
}
.header-inner {
  display:flex; align-items:center; justify-content:space-between;
  height:72px;
}
.logo-link { display:flex; align-items:center; }
.logo-img { height:48px; border-radius: var(--radius-sm); }

.main-nav { display:flex; align-items:center; gap:.25rem; }
.nav-link {
  padding: .5rem .9rem;
  font-size:.875rem;
  font-weight:500;
  color: var(--clr-text-dim);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--clr-text); background: var(--clr-surface2); }
.nav-cta {
  background: var(--clr-accent) !important;
  color:#fff !important;
  margin-left:.5rem;
}
.nav-cta:hover { background: var(--clr-accent-d) !important; }

/* Mobile hamburger */
.menu-toggle {
  display:none; flex-direction:column; gap:5px;
  background:none; border:none; cursor:pointer; padding:.5rem;
}
.menu-toggle span {
  display:block; width:24px; height:2px; background: var(--clr-text);
  border-radius:2px; transition: all var(--transition);
}
.menu-toggle.open span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity:0; }
.menu-toggle.open span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

/* ========================================
   HERO
   ======================================== */
.hero {
  position:relative;
  min-height:100vh;
  display:flex; align-items:center;
  padding: 8rem 0 4rem;
  overflow:hidden;
  background:
    radial-gradient(ellipse 70% 50% at 70% 40%, rgba(217,119,6,.08), transparent),
    radial-gradient(ellipse 50% 60% at 20% 80%, rgba(217,119,6,.05), transparent),
    var(--clr-bg);
}
.hero-overlay {
  position:absolute; inset:0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,.012) 60px,
      rgba(255,255,255,.012) 61px
    );
  pointer-events:none;
}
.hero-gear {
  position:absolute;
  right:-60px; top:50%; transform:translateY(-50%);
  width:420px; height:420px;
  color: var(--clr-accent);
  animation: gearSpin 60s linear infinite;
  pointer-events:none;
}
@keyframes gearSpin { to { transform:translateY(-50%) rotate(360deg); } }

.hero-content { position:relative; z-index:1; max-width:680px; }
.hero-tag {
  display:inline-block;
  font-size:.75rem; font-weight:700;
  letter-spacing:.14em; text-transform:uppercase;
  color: var(--clr-accent);
  margin-bottom:1.25rem;
  padding: .35rem .9rem;
  border: 1px solid rgba(217,119,6,.3);
  border-radius:100px;
}
.hero h1 {
  font-family: var(--ff-display);
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  line-height:1.1;
  letter-spacing:-.03em;
  margin-bottom:1.25rem;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--clr-text-dim);
  max-width:520px;
  margin-bottom:2rem;
}
.hero-actions { display:flex; gap:1rem; flex-wrap:wrap; margin-bottom:3.5rem; }

/* Hero stats */
.hero-stats {
  display:flex; gap:3rem; flex-wrap:wrap;
  padding-top:2rem;
  border-top:1px solid var(--clr-border);
}
.stat { text-align:left; }
.stat-num {
  display:block;
  font-family: var(--ff-display);
  font-size:2.2rem;
  font-weight:800;
  color: var(--clr-accent-h);
  line-height:1;
}
.stat-num::after { content:'+'; }
.stat-label {
  font-size:.8rem;
  color: var(--clr-text-dim);
  letter-spacing:.04em;
  text-transform:uppercase;
  margin-top:.25rem;
  display:block;
}

/* ========================================
   ABOUT
   ======================================== */
.about {
  padding: 6rem 0;
  background: var(--clr-surface);
}
.about-grid {
  display:grid;
  grid-template-columns: 1.2fr 1fr;
  gap:4rem;
  align-items:center;
}
.about-text h2 {
  font-family: var(--ff-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  line-height:1.2;
  margin-bottom:1.25rem;
  text-align:left;
  letter-spacing: -.02em;
}
.about-text p {
  color: var(--clr-text-dim);
  margin-bottom:1rem;
  font-size:.975rem;
}
.about-highlights {
  display:flex; flex-wrap:wrap; gap:1rem;
  margin-top:1.5rem;
}
.highlight {
  display:flex; align-items:center; gap:.5rem;
  padding: .6rem 1rem;
  background: var(--clr-surface2);
  border:1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-size:.85rem; font-weight:500;
  color: var(--clr-text);
}
.highlight svg { color: var(--clr-accent); flex-shrink:0; }

/* About visual card */
.about-visual { display:flex; justify-content:center; }
.about-card {
  width:280px; height:280px;
  background: var(--clr-surface2);
  border:1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  position:relative;
  overflow:hidden;
  box-shadow: var(--shadow-card);
}
.about-icon {
  width:120px; height:120px;
  color: var(--clr-accent);
  margin-bottom:1rem;
}
.about-card-text { text-align:center; }
.card-big {
  display:block;
  font-family: var(--ff-display);
  font-size:2.5rem;
  font-weight:800;
  color: var(--clr-accent-h);
  line-height:1;
}
.card-label {
  font-size:.8rem;
  color: var(--clr-text-dim);
  line-height:1.4;
  display:block;
  margin-top:.3rem;
}

/* ========================================
   SERVICES
   ======================================== */
.services {
  padding:6rem 0;
  background: var(--clr-bg);
}
.services-grid {
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1.5rem;
}
.service-card {
  background: var(--clr-surface);
  border:1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding:2rem 1.5rem;
  transition: all var(--transition);
  position:relative;
  overflow:hidden;
}
.service-card::before {
  content:'';
  position:absolute; top:0; left:0; right:0; height:3px;
  background: var(--clr-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}
.service-card:hover::before { transform:scaleX(1); }
.service-card:hover {
  transform:translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: rgba(217,119,6,.2);
}
.service-icon {
  width:52px; height:52px;
  margin-bottom:1.25rem;
  color: var(--clr-accent);
}
.service-icon svg { width:100%; height:100%; }
.service-card h3 {
  font-size:1.15rem; font-weight:700;
  margin-bottom:.6rem;
  letter-spacing:-.01em;
}
.service-card p {
  font-size:.9rem;
  color: var(--clr-text-dim);
  line-height:1.6;
}

/* ========================================
   WHY US
   ======================================== */
.why-us {
  padding:6rem 0;
  background: var(--clr-surface);
}
.why-grid {
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:1.5rem;
}
.why-item {
  padding:2rem 1.5rem;
  background: var(--clr-surface2);
  border:1px solid var(--clr-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.why-item:hover {
  border-color: var(--clr-accent);
  transform:translateY(-3px);
  box-shadow: var(--shadow-card);
}
.why-num {
  font-family: var(--ff-display);
  font-size:2rem;
  font-weight:800;
  color: var(--clr-accent);
  opacity:.5;
  margin-bottom:.75rem;
  line-height:1;
}
.why-item h3 {
  font-size:1.05rem;
  font-weight:700;
  margin-bottom:.5rem;
}
.why-item p {
  font-size:.875rem;
  color: var(--clr-text-dim);
  line-height:1.55;
}

/* ========================================
   BRANDS MARQUEE
   ======================================== */
.brands {
  padding:5rem 0;
  background: var(--clr-bg);
  overflow:hidden;
}
.brands-marquee {
  overflow:hidden;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.brands-track {
  display:flex;
  width:max-content;
  animation: marquee 30s linear infinite;
}
@keyframes marquee {
  0%   { transform:translateX(0); }
  100% { transform:translateX(-50%); }
}
.brand-name {
  flex-shrink:0;
  padding: 0 3rem;
  font-size:1.5rem;
  font-weight:700;
  letter-spacing:.02em;
  color: var(--clr-text-dim);
  opacity:.4;
  transition: opacity var(--transition);
  white-space:nowrap;
}
.brand-name:hover { opacity:.8; }

/* ========================================
   TESTIMONIALS
   ======================================== */
.testimonials {
  padding:6rem 0;
  background: var(--clr-surface);
}
.testimonials-grid {
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1.5rem;
}
.testimonial-card {
  background: var(--clr-surface2);
  border:1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding:2rem;
  transition: all var(--transition);
}
.testimonial-card:hover {
  transform:translateY(-3px);
  box-shadow: var(--shadow-card);
}
.stars {
  color: var(--clr-accent-h);
  font-size:1.1rem;
  margin-bottom:.75rem;
  letter-spacing:.1em;
}
.testimonial-card p {
  font-size:.925rem;
  color: var(--clr-text-dim);
  font-style:italic;
  line-height:1.7;
  margin-bottom:1rem;
}
.testimonial-card cite {
  font-style:normal;
  font-size:.8rem;
  font-weight:600;
  color: var(--clr-accent);
}

/* ========================================
   MAP
   ======================================== */
.map-section {
  padding:6rem 0;
  background: var(--clr-bg);
}
.map-wrapper {
  border-radius: var(--radius-md);
  overflow:hidden;
  border:1px solid var(--clr-border);
  margin-bottom:2rem;
}
.map-wrapper iframe {
  display:block;
  width:100%;
  filter: invert(.9) hue-rotate(180deg) saturate(.3) brightness(.7);
}
.location-cards {
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1rem;
}
.loc-card {
  display:flex; align-items:flex-start; gap:.75rem;
  padding:1.25rem;
  background: var(--clr-surface);
  border:1px solid var(--clr-border);
  border-radius: var(--radius-sm);
}
.loc-card svg { color: var(--clr-accent); flex-shrink:0; margin-top:2px; }
.loc-card strong {
  display:block;
  font-size:.8rem;
  text-transform:uppercase;
  letter-spacing:.06em;
  color: var(--clr-text-dim);
  margin-bottom:.2rem;
}
.loc-card span, .loc-card a { font-size:.9rem; color: var(--clr-text); }

/* ========================================
   CONTACT FORM
   ======================================== */
.contact {
  padding:6rem 0;
  background: var(--clr-surface);
}
.contact-form {
  max-width:720px;
  margin:0 auto;
}
.form-row {
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:1rem;
  margin-bottom:1rem;
}
.form-group { display:flex; flex-direction:column; }
.form-group.full { margin-bottom:1.5rem; }
.form-group label {
  font-size:.8rem;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.06em;
  color: var(--clr-text-dim);
  margin-bottom:.4rem;
}
.form-group input,
.form-group textarea {
  background: var(--clr-surface2);
  border:1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  font-family: var(--ff-body);
  font-size:.925rem;
  color: var(--clr-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--clr-text-dim);
  opacity:.5;
}
.form-group input:focus,
.form-group textarea:focus {
  outline:none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(217,119,6,.15);
}
.btn-submit {
  width:100%;
  justify-content:center;
  padding:1rem;
  font-size:1rem;
}
.form-status {
  text-align:center;
  margin-top:1rem;
  font-size:.9rem;
  min-height:1.5em;
}
.form-status.success { color: #22c55e; }
.form-status.error { color: #ef4444; }

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
  background: var(--clr-surface2);
  border-top:1px solid var(--clr-border);
  padding: 4rem 0 0;
}
.footer-grid {
  display:grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap:2.5rem;
}
.footer-logo {
  height:44px;
  border-radius: var(--radius-sm);
  margin-bottom:1rem;
}
.footer-desc {
  font-size:.875rem;
  color: var(--clr-text-dim);
  line-height:1.6;
}
.footer-col h4 {
  font-size:.8rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.1em;
  color: var(--clr-text);
  margin-bottom:1rem;
}
.footer-col a {
  display:block;
  font-size:.875rem;
  color: var(--clr-text-dim);
  padding:.25rem 0;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-col a:hover { color: var(--clr-accent-h); padding-left:.4rem; }
.footer-col p {
  font-size:.875rem;
  color: var(--clr-text-dim);
  margin-bottom:.3rem;
}

.footer-contact-row {
  display:flex; align-items:center; gap:.6rem;
  margin-bottom:.6rem;
}
.footer-contact-row svg { color: var(--clr-accent); flex-shrink:0; }
.footer-contact-row a,
.footer-contact-row span { font-size:.85rem; color: var(--clr-text-dim); }
.footer-contact-row a:hover { color: var(--clr-accent-h); }

.footer-bottom {
  margin-top:3rem;
  border-top:1px solid var(--clr-border);
  padding:1.5rem 0;
}
.footer-bottom-inner {
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:.8rem;
  color: var(--clr-text-dim);
}
.footer-bottom a { color: var(--clr-accent); }

/* ========================================
   BACK TO TOP
   ======================================== */
.back-to-top {
  position:fixed;
  bottom:2rem; right:2rem;
  width:44px; height:44px;
  border-radius:50%;
  background: var(--clr-accent);
  color:#fff;
  border:none; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition: all var(--transition);
  z-index:999;
  box-shadow: 0 4px 12px rgba(217,119,6,.3);
}
.back-to-top.visible {
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.back-to-top:hover {
  background: var(--clr-accent-d);
  transform:translateY(-2px);
}

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

@media (max-width: 768px) {
  .menu-toggle { display:flex; }
  .main-nav {
    position:fixed; top:72px; right:0;
    width:280px; height:calc(100vh - 72px);
    background: var(--clr-surface);
    border-left:1px solid var(--clr-border);
    flex-direction:column;
    padding:1.5rem;
    gap:.25rem;
    transform:translateX(100%);
    transition: transform var(--transition);
  }
  .main-nav.open { transform:translateX(0); }
  .nav-link { padding:.65rem .75rem; width:100%; }
  .nav-cta { margin-left:0; text-align:center; }

  .hero { padding:7rem 0 3rem; }
  .hero h1 { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-gear { width:260px; height:260px; right:-80px; }
  .hero-stats { gap:2rem; }

  .about-grid { grid-template-columns:1fr; gap:2rem; }
  .about-text h2 { text-align:center; }
  .about-visual { order:-1; }

  .services-grid       { grid-template-columns:1fr; }
  .why-grid            { grid-template-columns:1fr; }
  .testimonials-grid   { grid-template-columns:1fr; }
  .location-cards      { grid-template-columns:1fr; }
  .form-row            { grid-template-columns:1fr; }

  .footer-grid { grid-template-columns:1fr; gap:2rem; }
  .footer-bottom-inner { flex-direction:column; gap:.5rem; text-align:center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size:2rem; }
  .hero-stats { flex-direction:column; gap:1.5rem; }
  .stat { text-align:center; }
  .hero-actions { flex-direction:column; }
  .hero-actions .btn { width:100%; justify-content:center; }
}