/* ==========================================================================
   MAG & TIRE KORAT — One Page Landing
   ========================================================================== */

:root{
  --black: #0a0a0a;
  --black-soft: #121212;
  --surface: #161616;
  --surface-2: #1e1e1e;
  --line: #2a2a2a;
  --red: #e10600;
  --red-dark: #9e0400;
  --red-glow: rgba(225,6,0,.45);
  --white: #f5f5f5;
  --gray: #a5a5a5;
  --gray-dim: #6f6f6f;

  --font-head: 'Kanit', 'Prompt', sans-serif;
  --font-body: 'Prompt', 'Kanit', sans-serif;

  --radius: 14px;
  --transition: .35s cubic-bezier(.25,.8,.25,1);
  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background:var(--black);
  color:var(--white);
  font-family:var(--font-body);
  font-weight:400;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
input,textarea{ font-family:inherit; }

::selection{ background:var(--red); color:var(--white); }

::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background:var(--black); }
::-webkit-scrollbar-thumb{ background:var(--red-dark); border-radius:10px; }
::-webkit-scrollbar-thumb:hover{ background:var(--red); }

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

.accent{ color:var(--red); }

.noise-overlay{
  position:fixed; inset:0; z-index:9999; pointer-events:none;
  opacity:.035; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-head); font-weight:600;
  padding:13px 28px; border-radius:999px;
  font-size:.95rem; letter-spacing:.3px;
  transition:var(--transition);
  white-space:nowrap;
}
.btn-sm{ padding:9px 18px; font-size:.85rem; }
.btn-lg{ padding:16px 34px; font-size:1rem; }
.btn-primary{
  background:linear-gradient(135deg,var(--red),var(--red-dark));
  color:#fff;
  box-shadow:0 8px 24px -6px var(--red-glow);
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 14px 30px -6px var(--red-glow);
}
.btn-outline{
  border:2px solid var(--line);
  color:var(--white);
  background:rgba(255,255,255,.02);
}
.btn-outline:hover{
  border-color:var(--red);
  background:rgba(225,6,0,.08);
  transform:translateY(-3px);
}

/* ---------- Section shared ---------- */
section{ position:relative; padding:110px 0; }
.section-head{ text-align:center; max-width:640px; margin:0 auto 60px; }
.section-tag{
  font-family:var(--font-head); font-weight:700; text-transform:uppercase;
  letter-spacing:3px; color:var(--red); font-size:.8rem; margin-bottom:14px;
  display:inline-block; position:relative; padding-left:36px;
}
.section-tag::before{
  content:''; position:absolute; left:0; top:50%; transform:translateY(-50%);
  width:26px; height:2px; background:var(--red);
}
.section-title{
  font-family:var(--font-head); font-weight:800; font-size:clamp(1.8rem,4vw,2.7rem);
  line-height:1.25; margin-bottom:18px;
}
.section-desc{ color:var(--gray); font-size:1.02rem; }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:20px 0;
  transition:var(--transition);
  background:transparent;
}
.site-header.scrolled{
  padding:12px 0;
  background:rgba(10,10,10,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; gap:20px; }

.logo{ display:flex; align-items:center; gap:12px; }
.logo-mark{ color:var(--red); width:38px; height:38px; flex-shrink:0; }
.logo-wheel{ width:100%; height:100%; animation:spin 12s linear infinite; }
@keyframes spin{ to{ transform:rotate(360deg); } }
.logo-text{
  font-family:var(--font-head); font-weight:800; font-size:1.15rem;
  letter-spacing:1px; line-height:1.05;
}
.logo-text small{
  font-size:.55rem; letter-spacing:4px; color:var(--gray); font-weight:500;
}

.main-nav{ display:flex; align-items:center; gap:34px; }
.nav-link{
  font-family:var(--font-head); font-weight:500; font-size:.92rem;
  color:var(--gray); position:relative; padding:4px 0; transition:var(--transition);
}
.nav-link::after{
  content:''; position:absolute; left:0; bottom:-4px; width:0; height:2px;
  background:var(--red); transition:var(--transition);
}
.nav-link:hover, .nav-link.active{ color:var(--white); }
.nav-link:hover::after, .nav-link.active::after{ width:100%; }

.header-actions{ display:flex; align-items:center; gap:16px; }
.hamburger{
  display:none; flex-direction:column; gap:5px; width:26px;
}
.hamburger span{
  display:block; height:2px; background:var(--white); border-radius:2px;
  transition:var(--transition);
}
.hamburger.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2){ opacity:0; }
.hamburger.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative; min-height:100vh; display:flex; align-items:center;
  padding-top:120px; overflow:hidden;
  background:radial-gradient(ellipse at 70% 20%, #1a0605 0%, var(--black) 60%);
}
.hero-bg{ position:absolute; inset:0; z-index:0; }
.tread-pattern{
  position:absolute; inset:0; opacity:.06;
  background-image:repeating-linear-gradient(115deg, #fff 0 2px, transparent 2px 26px),
                    repeating-linear-gradient(25deg, #fff 0 2px, transparent 2px 26px);
}
.hero-glow{ position:absolute; border-radius:50%; filter:blur(90px); }
.glow-1{ width:520px; height:520px; background:var(--red); opacity:.18; top:-120px; right:-100px; }
.glow-2{ width:380px; height:380px; background:var(--red-dark); opacity:.15; bottom:-100px; left:-80px; }
.diagonal-slash{
  position:absolute; top:0; right:8%; width:2px; height:100%;
  background:linear-gradient(var(--red),transparent);
  transform:skewX(-12deg); opacity:.5;
}

.hero-wheel{
  position:absolute; right:-90px; top:50%; transform:translateY(-50%);
  width:640px; height:640px; max-width:none;
  animation:spin 40s linear infinite;
  z-index:0;
}

.hero-content{ position:relative; z-index:2; max-width:760px; }
.eyebrow{
  font-family:var(--font-head); font-weight:600; letter-spacing:2px;
  color:var(--gray); text-transform:uppercase; font-size:.82rem; margin-bottom:22px;
}
.hero-title{
  font-family:var(--font-head); font-weight:900; letter-spacing:1px;
  font-size:clamp(2.6rem,7vw,5.2rem); line-height:1.02; margin-bottom:14px;
  text-transform:uppercase;
}
.hero-tagline{
  font-family:var(--font-head); font-weight:600; font-size:clamp(1.1rem,2.2vw,1.5rem);
  color:var(--white); margin-bottom:20px;
}
.hero-sub{ color:var(--gray); font-size:1.05rem; max-width:560px; margin-bottom:38px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:18px; margin-bottom:56px; }

.hero-stats{ display:flex; align-items:center; gap:28px; flex-wrap:wrap; }
.stat{ display:flex; flex-direction:column; }
.stat-num{
  font-family:var(--font-head); font-weight:800; font-size:2.1rem; line-height:1;
  display:inline;
}
.stat .accent{ font-family:var(--font-head); font-weight:800; font-size:2.1rem; }
.stat-label{ display:block; color:var(--gray); font-size:.82rem; margin-top:6px; max-width:140px; }
.stat-divider{ width:1px; height:44px; background:var(--line); }

.scroll-cue{
  position:absolute; bottom:34px; left:50%; transform:translateX(-50%);
  width:26px; height:42px; border:2px solid var(--gray); border-radius:20px; z-index:2;
}
.scroll-cue span{
  position:absolute; top:8px; left:50%; transform:translateX(-50%);
  width:4px; height:8px; border-radius:2px; background:var(--red);
  animation:cue 1.6s ease infinite;
}
@keyframes cue{ 0%{ opacity:1; top:8px; } 70%{ opacity:0; top:22px; } 100%{ opacity:0; top:8px; } }

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about{ background:var(--black-soft); }
.about-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:70px; align-items:center; }
.about-visual{ position:relative; }
.about-frame{ position:relative; }
.about-wheel-art{ width:100%; height:auto; filter:drop-shadow(0 20px 50px rgba(0,0,0,.6)); }
.about-wheel-art circle:first-child{ animation:none; }
.about-frame svg{ animation:spin 30s linear infinite; transform-origin:center; }

.badge-float{
  position:absolute; bottom:6%; left:-6%;
  background:linear-gradient(135deg,var(--red),var(--red-dark));
  color:#fff; padding:18px 22px; border-radius:var(--radius);
  box-shadow:0 16px 34px -10px var(--red-glow);
  text-align:center; font-family:var(--font-head);
}
.badge-float strong{ display:block; font-size:1.8rem; font-weight:800; line-height:1; }
.badge-float span{ font-size:.72rem; letter-spacing:1px; opacity:.9; }

.feature-list{ display:grid; grid-template-columns:1fr 1fr; gap:26px; margin-top:40px; }
.feature-item{ display:flex; gap:16px; align-items:flex-start; }
.feature-item i{
  width:46px; height:46px; flex-shrink:0; display:flex; align-items:center; justify-content:center;
  background:rgba(225,6,0,.1); color:var(--red); border-radius:12px; font-size:1.1rem;
  border:1px solid rgba(225,6,0,.25);
}
.feature-item h4{ font-family:var(--font-head); font-weight:600; font-size:1rem; margin-bottom:4px; }
.feature-item p{ color:var(--gray); font-size:.88rem; }

/* ==========================================================================
   SERVICES
   ========================================================================== */
.services-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.service-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:38px 30px; transition:var(--transition); position:relative; overflow:hidden;
}
.service-card::before{
  content:''; position:absolute; top:0; left:0; width:100%; height:3px;
  background:linear-gradient(90deg,var(--red),transparent);
  transform:scaleX(0); transform-origin:left; transition:var(--transition);
}
.service-card:hover{
  transform:translateY(-8px);
  border-color:rgba(225,6,0,.4);
  box-shadow:0 20px 40px -16px rgba(0,0,0,.6);
}
.service-card:hover::before{ transform:scaleX(1); }
.service-icon{
  width:58px; height:58px; border-radius:14px; margin-bottom:22px;
  display:flex; align-items:center; justify-content:center; font-size:1.5rem;
  background:linear-gradient(135deg,rgba(225,6,0,.18),rgba(225,6,0,.02));
  color:var(--red); border:1px solid rgba(225,6,0,.25);
}
.service-card h3{ font-family:var(--font-head); font-weight:700; font-size:1.15rem; margin-bottom:10px; }
.service-card p{ color:var(--gray); font-size:.92rem; }

/* ==========================================================================
   BRANDS
   ========================================================================== */
.brands{ background:var(--black-soft); padding-bottom:80px; }
.brand-marquee{ overflow:hidden; border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:30px 0; margin-top:10px; }
.marquee-track{ display:flex; gap:18px; width:max-content; animation:marquee 26s linear infinite; }
.brand-pill{
  font-family:var(--font-head); font-weight:700; letter-spacing:1px; font-size:1rem;
  padding:14px 30px; border:1px solid var(--line); border-radius:999px;
  color:var(--gray); display:flex; align-items:center; gap:10px; white-space:nowrap;
  transition:var(--transition);
}
.brand-pill i{ color:var(--red); }
.brand-pill:hover{ border-color:var(--red); color:var(--white); }
@keyframes marquee{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }
.brand-note{ text-align:center; color:var(--gray-dim); font-size:.8rem; margin-top:22px; }

/* ==========================================================================
   GALLERY
   ========================================================================== */
.gallery-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.gallery-tile{
  aspect-ratio:4/3; border-radius:var(--radius); position:relative; overflow:hidden;
  display:flex; align-items:flex-end; padding:24px;
  font-family:var(--font-head); font-weight:600; font-size:1rem;
  border:1px solid var(--line);
}
.gallery-tile i{
  position:absolute; top:24px; left:24px; font-size:1.8rem; color:rgba(255,255,255,.25);
}
.gallery-tile span{ position:relative; z-index:1; }
.gallery-tile::after{ content:''; position:absolute; inset:0; background:linear-gradient(180deg,transparent 40%, rgba(0,0,0,.75)); }
.gallery-tile{ transition:var(--transition); }
.gallery-tile:hover{ transform:scale(1.03); }
.g1{ background:linear-gradient(135deg,#3a0a08,#0a0a0a); }
.g2{ background:linear-gradient(135deg,#1c1c1c,#0a0a0a); }
.g3{ background:linear-gradient(135deg,#4a0f0c,#151515); }
.g4{ background:linear-gradient(135deg,#161616,#050505); }
.g5{ background:linear-gradient(135deg,#5a0f0a,#0a0a0a); }
.g6{ background:linear-gradient(135deg,#202020,#080808); }

/* ==========================================================================
   RATING BANNER
   ========================================================================== */
.rating-banner{
  background:linear-gradient(120deg,var(--red-dark) 0%, #2a0402 60%, var(--black) 100%);
  padding:70px 0;
}
.rating-inner{ display:grid; grid-template-columns:.5fr 1fr; gap:50px; align-items:center; }
.rating-score{ text-align:center; border-right:1px solid rgba(255,255,255,.15); padding-right:40px; }
.big-num{ font-family:var(--font-head); font-weight:900; font-size:4rem; line-height:1; display:block; }
.stars{ color:#ffb400; font-size:1.2rem; margin:12px 0; letter-spacing:4px; }
.rating-score p{ color:rgba(255,255,255,.85); font-size:.9rem; }
.rating-text h3{ font-family:var(--font-head); font-weight:800; font-size:1.8rem; margin-bottom:14px; }
.rating-text p{ color:rgba(255,255,255,.85); margin-bottom:24px; max-width:520px; }
.rating-text .btn-outline{ border-color:rgba(255,255,255,.4); }
.rating-text .btn-outline:hover{ border-color:#fff; background:rgba(255,255,255,.1); }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid{ display:grid; grid-template-columns:1fr 1.1fr; gap:26px; margin-bottom:26px; }
.contact-info{ display:grid; gap:16px; }
.contact-card{
  display:flex; gap:16px; align-items:flex-start; background:var(--surface);
  border:1px solid var(--line); border-radius:var(--radius); padding:20px;
  transition:var(--transition);
}
a.contact-card:hover{ border-color:rgba(225,6,0,.4); transform:translateX(6px); }
.contact-card i{
  width:44px; height:44px; flex-shrink:0; border-radius:12px; display:flex; align-items:center; justify-content:center;
  background:rgba(225,6,0,.12); color:var(--red); font-size:1.05rem;
}
.contact-card h4{ font-family:var(--font-head); font-weight:600; font-size:.95rem; margin-bottom:4px; }
.contact-card p{ color:var(--gray); font-size:.87rem; }

.contact-map{ border-radius:var(--radius); overflow:hidden; min-height:340px; border:1px solid var(--line); filter:grayscale(.3) contrast(1.1); }

.contact-form{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:40px; display:grid; gap:16px;
}
.contact-form h3{ font-family:var(--font-head); font-weight:700; font-size:1.3rem; margin-bottom:6px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.contact-form input, .contact-form textarea{
  background:var(--black-soft); border:1px solid var(--line); border-radius:10px;
  padding:14px 16px; color:var(--white); font-size:.95rem; resize:vertical;
  transition:var(--transition); width:100%;
}
.contact-form input:focus, .contact-form textarea:focus{ outline:none; border-color:var(--red); }
.contact-form input::placeholder, .contact-form textarea::placeholder{ color:var(--gray-dim); }
.contact-form .btn{ justify-self:start; }
.form-note{ color:var(--red); font-size:.85rem; min-height:1em; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{ background:var(--black-soft); border-top:1px solid var(--line); padding-top:70px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; padding-bottom:50px; }
.footer-brand p{ color:var(--gray); font-size:.88rem; margin:16px 0 22px; max-width:280px; }
.social-icons{ display:flex; gap:12px; }
.social-icons a{
  width:40px; height:40px; border-radius:50%; border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center; transition:var(--transition);
}
.social-icons a:hover{ background:var(--red); border-color:var(--red); transform:translateY(-3px); }

.footer-col h4{ font-family:var(--font-head); font-weight:600; font-size:1rem; margin-bottom:18px; }
.footer-col a, .footer-col p{ display:block; color:var(--gray); font-size:.88rem; margin-bottom:12px; transition:var(--transition); }
.footer-col a:hover{ color:var(--red); }
.footer-col p i{ color:var(--red); width:16px; }

.footer-bottom{ border-top:1px solid var(--line); padding:22px 0; }
.footer-bottom-inner{ text-align:center; color:var(--gray-dim); font-size:.82rem; }

/* ==========================================================================
   FLOATING ACTIONS
   ========================================================================== */
.floating-actions{
  position:fixed; right:22px; bottom:22px; z-index:900;
  display:flex; flex-direction:column; gap:14px;
}
.fab{
  width:54px; height:54px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; color:#fff; box-shadow:0 10px 26px -6px rgba(0,0,0,.6);
  transition:var(--transition);
}
.fab-line{ background:#06c755; }
.fab-call{ background:linear-gradient(135deg,var(--red),var(--red-dark)); animation:pulse 2.4s ease infinite; }
.fab:hover{ transform:scale(1.1); }
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 var(--red-glow); }
  70%{ box-shadow:0 0 0 14px rgba(225,6,0,0); }
  100%{ box-shadow:0 0 0 0 rgba(225,6,0,0); }
}

.back-to-top{
  position:fixed; left:22px; bottom:22px; z-index:900;
  width:46px; height:46px; border-radius:50%; background:var(--surface);
  border:1px solid var(--line); color:var(--white); display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform:translateY(10px); transition:var(--transition);
}
.back-to-top.show{ opacity:1; visibility:visible; transform:translateY(0); }
.back-to-top:hover{ background:var(--red); border-color:var(--red); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1024px){
  .about-grid{ grid-template-columns:1fr; gap:60px; }
  .about-visual{ max-width:420px; margin:0 auto; }
  .services-grid{ grid-template-columns:repeat(2,1fr); }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
  .contact-map{ min-height:280px; }
  .rating-inner{ grid-template-columns:1fr; text-align:center; }
  .rating-score{ border-right:none; padding-right:0; border-bottom:1px solid rgba(255,255,255,.15); padding-bottom:30px; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width:820px){
  .main-nav{
    position:fixed; top:0; right:0; height:100vh; width:280px;
    background:rgba(10,10,10,.98); backdrop-filter:blur(16px);
    flex-direction:column; align-items:flex-start; justify-content:center;
    gap:30px; padding:40px; transform:translateX(100%); transition:var(--transition);
    border-left:1px solid var(--line);
  }
  .main-nav.open{ transform:translateX(0); }
  .hamburger{ display:flex; }
  .hero-wheel{ opacity:.35; width:460px; height:460px; right:-140px; }
  .feature-list{ grid-template-columns:1fr; }
}

@media (max-width:640px){
  section{ padding:80px 0; }
  .hero{ padding-top:110px; }
  .hero-actions{ flex-direction:column; align-items:stretch; }
  .hero-actions .btn{ justify-content:center; }
  .hero-stats{ gap:18px; }
  .stat-divider{ display:none; }
  .services-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; gap:34px; }
  .form-row{ grid-template-columns:1fr; }
  .logo-text{ font-size:1rem; }
  .header-actions .btn-sm span{ display:none; }
}