/* =========================================================
   LuvitArt — Jewellery CAD Design & Rendering Studio
   ========================================================= */

:root{
  /* brand (constant across themes) */
  --gold:#d4af37;
  --gold-light:#f0d788;
  --gold-dark:#a8801f;
  --gold-gradient: linear-gradient(135deg, #f0d788 0%, #d4af37 45%, #a8801f 100%);
  --on-gold: #1a1400;

  /* raw dark palette (default theme) */
  --raw-bg-0:#0a0a0b;
  --raw-bg-1:#111113;
  --raw-bg-2:#17171a;
  --raw-bg-card:#1b1b1e;
  --raw-line: rgba(255,255,255,.08);
  --raw-line-soft: rgba(255,255,255,.06);
  --raw-text-1:#f8f4ea;
  --raw-text-2:#a3a09a;
  --raw-text-3:#7d7a75;

  /* semantic tokens — dark theme values (default) */
  --page-bg: var(--raw-bg-0);
  --surface-bg: var(--raw-bg-1);
  --dropdown-bg: var(--raw-bg-2);
  --card-bg: var(--raw-bg-card);
  --border-color: var(--raw-line);
  --border-soft: var(--raw-line-soft);
  --border-strong: rgba(255,255,255,.14);
  --text-primary: var(--raw-text-1);
  --text-secondary: var(--raw-text-2);
  --text-tertiary: var(--raw-text-3);
  --header-bg: rgba(10,10,11,.85);
  --icon-chip-bg: rgba(212,175,55,.1);
  --blob-tint: rgba(255,255,255,.05);

  --font-head: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 28px;

  --container: 1240px;
  --shadow-gold: 0 10px 30px rgba(212,175,55,.18);
  --transition: .35s cubic-bezier(.4,0,.2,1);
}

:root[data-theme="light"]{
  --page-bg: #ffffff;
  --surface-bg: #f6f3ec63;
  --dropdown-bg: #ffffff;
  --card-bg: #ffffff;
  --border-color: rgba(10,10,11,.1);
  --border-soft: rgba(10,10,11,.07);
  --border-strong: rgba(10,10,11,.16);
  --text-primary: #17150f;
  --text-secondary: #5d5a53;
  --text-tertiary: #8b8780;
  --header-bg: rgba(255,255,255,.85);
  --icon-chip-bg: rgba(168,128,31,.1);
  --blob-tint: rgba(246,243,236,.85);

  --shadow-gold: 0 10px 30px rgba(212,175,55,.22);
}

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

html{ scroll-behavior:smooth; scroll-padding-top:90px; overflow-x:hidden; }

body{
  background: var(--page-bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight:400;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  transition: background var(--transition), color var(--transition);
}

img{ max-width:100%; display:block; }
a{ text-decoration:none; color:inherit; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }
input, textarea{ font-family:inherit; }

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

h1,h2,h3,h4{ font-family: var(--font-head); font-weight:700; line-height:1.15; color:var(--text-primary); }

.eyebrow{
  display:inline-flex; align-items:center; gap:7px;
  padding:8px 18px;
  border-radius:100px;
  border:1px solid var(--border-color);
  background: var(--icon-chip-bg);
  font-size:.75rem;
  letter-spacing:.15em;
  text-transform:uppercase;
  color: var(--gold);
  font-weight:600;
  margin-bottom:16px;
  transition: background var(--transition), border-color var(--transition);
}
.eyebrow .icon{ width:13px; height:13px; flex-shrink:0; }

section{ position:relative; }

/* ---------- Icons ---------- */
.icon{ width:1em; height:1em; display:inline-block; vertical-align:-0.15em; fill:currentColor; }
.icon-sparkle{ width:.85em; height:.85em; margin-right:.3em; vertical-align:-0.05em; }
.icon-check{ color: var(--gold); }

/* ---------- Preloader ---------- */

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:15px 30px;
  border-radius: 100px;
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.02em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  white-space:nowrap;
}
.btn .icon{ width:15px; height:15px; transition: transform var(--transition); }
.btn:hover .icon{ transform: translateX(3px); }
.btn-sm{ padding:11px 22px; font-size:.85rem; }
.btn-primary{
  background: var(--gold-gradient);
  color: var(--on-gold);
  box-shadow: var(--shadow-gold);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 14px 34px rgba(212,175,55,.3); }
.btn-outline{
  border:1px solid rgba(255,255,255,.35);
  color: #fff;
  background: rgba(255,255,255,.06);
}
.btn-outline:hover{ border-color: var(--gold-light); color: var(--gold-light); transform: translateY(-2px); }
.btn-dark{
  background: var(--on-gold);
  color: var(--gold-light);
}
.btn-dark:hover{ transform: translateY(-2px); box-shadow: 0 14px 34px rgba(0,0,0,.35); }
.btn-block{ width:100%; }

/* ---------- Header ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0;
  z-index:1000;
  padding:18px 0;
  background: transparent;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled{
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding:12px 0;
  border-bottom: 1px solid var(--border-color);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; gap:24px; }

.logo{ display:flex; align-items:center; }

.logo-img{
  height: 40px;
  width: auto;
  display: block;
  transition: height .35s ease;
}

.logo-img--footer{
  height: 42px;
  opacity: 0.9;
}

.main-nav ul{ display:flex; align-items:center; gap:34px; }
.nav-link{
  font-size:.92rem; font-weight:500; color: var(--text-secondary);
  position:relative; padding:6px 0;
  transition: color var(--transition);
}
.nav-link::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:1px;
  background: var(--gold); transition: width var(--transition);
}
.nav-link:hover, .nav-link.active{ color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after{ width:100%; }

.has-dropdown{ position:relative; }
.dropdown{
  position:absolute; top: calc(100% + 18px); left:50%; transform:translateX(-50%) translateY(-8px);
  min-width:220px;
  background: var(--dropdown-bg);
  border:1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding:10px;
  opacity:0; visibility:hidden;
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  box-shadow: 0 20px 40px rgba(0,0,0,.25);
}
.has-dropdown:hover .dropdown{ opacity:1; visibility:visible; transform:translateX(-50%) translateY(0); }
.dropdown li a{
  display:block; padding:10px 14px; border-radius:6px; font-size:.88rem; color:var(--text-secondary);
  transition: background var(--transition), color var(--transition);
}
.dropdown li a:hover{ background: rgba(212,175,55,.1); color: var(--gold-dark); }
[data-theme="dark"] .dropdown li a:hover, :root:not([data-theme]) .dropdown li a:hover{ color: var(--gold-light); }

/* ---- Navbar always dark in light mode (scrolled) ---- */
[data-theme="light"] .site-header.scrolled{
  background: rgba(10,10,11,.92);
  border-bottom-color: rgba(255,255,255,.08);
}
[data-theme="light"] .site-header.scrolled .nav-link{ color: rgba(255,255,255,.78); }
[data-theme="light"] .site-header.scrolled .nav-link:hover,
[data-theme="light"] .site-header.scrolled .nav-link.active{ color:#fff; }
[data-theme="light"] .site-header.scrolled .nav-link::after{ background:#fff; }
[data-theme="light"] .site-header.scrolled .theme-toggle{ color:#fff; border-color:rgba(255,255,255,.35); background:rgba(255,255,255,.08); }
[data-theme="light"] .site-header.scrolled .theme-toggle:hover{ color:var(--gold-light); border-color:var(--gold-light); }
[data-theme="light"] .site-header.scrolled .nav-toggle span{ background:#fff; }
[data-theme="light"] .site-header.scrolled .dropdown{ background: rgba(10,10,11,.95); border-color:rgba(255,255,255,.1); }
[data-theme="light"] .site-header.scrolled .dropdown li a{ color:rgba(255,255,255,.78); }
[data-theme="light"] .site-header.scrolled .dropdown li a:hover{ color:var(--gold-light); }

.header-actions{ display:flex; align-items:center; gap:14px; }

.theme-toggle{
  display:flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:50%;
  border:1px solid var(--border-color);
  color: var(--text-primary);
  background: rgba(255,255,255,.03);
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
  flex-shrink:0;
}
.theme-toggle:hover{ border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }
.theme-toggle .icon{ width:18px; height:18px; }
.icon-moon-state{ display:none; }
[data-theme="light"] .icon-sun-state{ display:none; }
[data-theme="light"] .icon-moon-state{ display:inline-block; }

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:26px; height:20px;
}
.nav-toggle span{
  display:block; height:2px; width:100%; background: var(--text-primary);
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}
.nav-toggle.open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* The header floats transparently over the hero, which is always a dark video —
   force light UI there regardless of theme, then switch to theme-aware colors
   once the header gets an opaque background on scroll. */
.site-header:not(.scrolled) .logo-img{ height: 44px; }
.site-header:not(.scrolled) .theme-toggle{ color:#fff; border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.08); }
.site-header:not(.scrolled) .theme-toggle:hover{ color: var(--gold-light); border-color: var(--gold-light); }
.site-header:not(.scrolled) .nav-toggle span{ background:#fff; }

@media (min-width:961px){
  .site-header:not(.scrolled) .nav-link{ color: rgba(255,255,255,.78); }
  .site-header:not(.scrolled) .nav-link:hover,
  .site-header:not(.scrolled) .nav-link.active{ color:#fff; }
  .site-header:not(.scrolled) .nav-link::after{ background:#fff; }
}

/* ---------- Hero (fixed dark video treatment regardless of theme) ---------- */
.hero{
  min-height:100vh;
  display:flex; align-items:center;
  padding-top:140px; padding-bottom:80px;
  text-align:center;
  overflow:hidden;
  isolation:isolate;
}
.hero-media{ position:absolute; inset:0; z-index:0; background:#050505; }
.hero-video{ width:100%; height:100%; object-fit:cover; }
.hero-scrim{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(3,3,4,.82) 0%, rgba(3,3,4,.62) 9%, rgba(3,3,4,.30) 20%),
    linear-gradient(180deg, rgba(5,5,6,.65) 0%, rgba(5,5,6,.60) 42%, rgba(5,5,6,.72) 100%),
    radial-gradient(ellipse 60% 50% at 50% 10%, rgba(212,175,55,.11), transparent 60%);
}
.hero-inner{ position:relative; z-index:2; display:flex; flex-direction:column; align-items:center; }

.badge{
  display:inline-flex; align-items:center;
  padding:9px 20px;
  border-radius:100px;
  border:1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  color: var(--gold-light);
  font-family: 'Prata', serif;
  font-size:.8rem; letter-spacing:.04em;
  margin-bottom:26px;
}

.hero h1{
  font-family: 'Prata', serif;
  font-weight:400;
  font-size: clamp(2.2rem, 5vw, 4rem);
  margin-bottom:22px;
  color:#fff;
}

.hero-sub{
  color: rgba(255,255,255,.72);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  max-width: 620px;
  margin-bottom:36px;
}

.hero-cta{ display:flex; gap:18px; flex-wrap:wrap; justify-content:center; margin-bottom:64px; }

.hero-stats{
  display:flex; flex-wrap:wrap; justify-content:center; gap:0;
  border-top:1px solid rgba(255,255,255,.15);
  padding-top:36px;
  width:100%; max-width:760px;
}
.hero-stat{
  flex:1 1 160px;
  display:flex; flex-direction:column; align-items:center; gap:4px;
  padding:0 20px; text-align:center;
  border-right:1px solid rgba(255,255,255,.15);
}
.hero-stat:last-child{ border-right:none; }
.hero-stat strong{ font-family:'Prata', serif; font-weight:400; font-size:1.7rem; color:var(--gold-light); }
.hero-stat span{ font-size:.8rem; color:rgba(255,255,255,.6); }

/* ---------- Portfolio split layout: static text + angled vertical scroll ---------- */
.portfolio-split{ display:grid; grid-template-columns: 44% 56%; gap:40px; align-items:center; width:100%; }
.portfolio-info{
  text-align:left;
  padding-left: max(24px, calc((100vw - var(--container)) / 2));
  padding-right: 24px;
}
.portfolio-info h2{ margin-bottom:14px; }
.portfolio-info p{ color:var(--text-secondary); font-size:1.02rem; }

.portfolio-columns{
  position:relative; height:460px; overflow:hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 14%);
  mask-image: linear-gradient(90deg, transparent, #000 14%);
}
.portfolio-columns-inner{
  position:absolute; top:50%; left:50%;
  width:100%; height:230%;
  display:flex; gap:8px;
  transform: translate(-50%,-50%) rotate(-22deg);
}
.portfolio-col{ flex:1; overflow:hidden; }
.portfolio-col-track{
  display:flex; flex-direction:column; gap:8px; width:100%;
  animation: portfolio-col-up 26s linear infinite;
}
.portfolio-col.reverse .portfolio-col-track{ animation-name: portfolio-col-down; animation-duration: 22s; }
.portfolio-columns:hover .portfolio-col-track{ animation-play-state: paused; }
.portfolio-col-track img{
  display:block; width:100%; height:230px; object-fit:cover; border-radius:14px;
  border:1px solid var(--border-color);
  background: var(--card-bg);
  cursor:pointer;
  transition: transform .5s ease;
}
.portfolio-col-track img:hover{ transform: scale(1.04); }

@keyframes portfolio-col-up{ from{ transform:translateY(0); } to{ transform:translateY(-50%); } }
@keyframes portfolio-col-down{ from{ transform:translateY(-50%); } to{ transform:translateY(0); } }

@media (prefers-reduced-motion: reduce){
  .portfolio-col-track{ animation:none; }
}

@media (max-width: 960px){
  .portfolio-split{ grid-template-columns:1fr; }
  .portfolio-info{ text-align:center; padding-top:70px; padding-bottom:0; }
  .portfolio-columns{ height:360px; margin-top:30px; }
  .portfolio-columns-inner{ transform: translate(-50%,-50%) rotate(-16deg); gap:8px; }
}

@media (max-width: 640px){
  .portfolio-info{ padding-top:56px; }
  .portfolio-columns{ height:340px; }
  .portfolio-columns-inner{
    position:static; width:100%; height:100%; transform:none; gap:8px;
  }
  .portfolio-col-track{ gap:8px; }
  .portfolio-col-track img{ height:150px; border-radius:10px; }
}


/* ---------- Section head ---------- */
.section-head{ max-width:640px; margin:0 auto 60px; text-align:center; }
.section-head h2{ font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom:16px; }
.section-head p{ color:var(--text-secondary); font-size:1.02rem; }

/* ---------- About ---------- */
.about{ padding:120px 0; background: var(--page-bg); transition: background var(--transition); }
.about-inner{ display:grid; grid-template-columns: .8fr 1fr; gap:70px; align-items:center; }
.about-media{ position:relative; }
.about-frame{
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  background: var(--surface-bg);
  border:1px solid var(--border-color);
  overflow:hidden;
  position:relative;
}
.about-frame video{ width:100%; height:100%; object-fit:cover; }
.about-badge{
  position:absolute; bottom:-18px; right:-18px;
  background: var(--gold-gradient);
  color: var(--on-gold);
  padding:16px 20px;
  border-radius:14px;
  border: 1px solid rgba(255,255,255,.3);
  box-shadow: var(--shadow-gold), inset 0 1px 0 rgba(255,255,255,.4);
  text-align:center;
  min-width:128px;
}
.about-badge strong{ display:block; font-family:var(--font-head); font-size:1.5rem; line-height:1.1; }
.about-badge span{ display:block; font-size:.66rem; font-weight:600; letter-spacing:.02em; opacity:.9; margin-top:2px; }

.about-content h2{ font-size: clamp(1.8rem, 3.2vw, 2.5rem); margin-bottom:20px; }
.about-content p{ color: var(--text-secondary); margin-bottom:16px; }
.about-list{ margin-top:24px; display:flex; flex-direction:column; gap:12px; }
.about-list li{ display:flex; align-items:center; gap:10px; color: var(--text-primary); font-size:.95rem; }

/* ---------- Services ---------- */
.services{ padding:120px 0; background: var(--surface-bg); transition: background var(--transition); }
.service-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:28px; }
.service-card{
  background: var(--card-bg);
  border:1px solid var(--border-color);
  border-radius: var(--radius);
  padding:0 32px 38px;
  display:flex; flex-direction:column;
  overflow:hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.service-card:hover{ transform: translateY(-8px); border-color: rgba(212,175,55,.35); box-shadow: 0 20px 50px rgba(0,0,0,.2); }
.service-card.featured{ border-color: rgba(212,175,55,.3); }

.service-thumb{ margin:0 -32px 26px; height:190px; overflow:hidden; position:relative; background: var(--page-bg); }
.service-thumb img{ width:100%; height:100%; object-fit:cover; }
.service-thumb.compare-thumb{ display:flex; }
.compare-thumb img{ width:50%; height:100%; object-fit:cover; }
.compare-tag{
  position:absolute; bottom:10px; left:50%; transform:translateX(-50%);
  background: rgba(0,0,0,.55); color:#fff; font-size:.68rem; letter-spacing:.06em; text-transform:uppercase;
  padding:5px 12px; border-radius:100px; backdrop-filter: blur(4px);
}

.service-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:22px; }
.service-index{ font-size:.75rem; letter-spacing:.1em; text-transform:uppercase; color:var(--text-tertiary); }
.service-tag{ font-size:.72rem; padding:5px 12px; border-radius:100px; background: var(--icon-chip-bg); color: var(--gold-dark); }
[data-theme="light"] .service-tag, :root:not([data-theme="light"]) .service-tag{ color: var(--gold-dark); }
.service-card h3{ font-size:1.5rem; margin-bottom:14px; }
.service-card p{ color:var(--text-secondary); font-size:.94rem; margin-bottom:22px; flex:1; }
.feature-list{ display:flex; flex-direction:column; gap:10px; margin-bottom:28px; }
.feature-list li{ font-size:.88rem; color: var(--text-primary); padding-left:22px; position:relative; }
.feature-list li::before{ content:"✓"; position:absolute; left:0; color:var(--gold); font-weight:700; }
.card-link{ font-weight:600; color: var(--gold-dark); font-size:.9rem; display:inline-flex; align-items:center; gap:6px; }
[data-theme="dark"] .card-link, :root:not([data-theme="light"]) .card-link{ color: var(--gold-light); }
.card-link .icon{ transition: transform var(--transition); }
.card-link:hover .icon{ transform: translateX(4px); }

/* ---------- Why ---------- */
.why{ padding:80px 0; background: var(--page-bg); transition: background var(--transition); }
.why-layout{ display:grid; grid-template-columns: 1.05fr .95fr; gap:28px; align-items:stretch; }
.why-list{ display:flex; flex-direction:column; gap:14px; }
.why-card{
  display:flex; align-items:flex-start; gap:16px;
  background: var(--card-bg);
  border:1px solid var(--border-color); border-radius: var(--radius);
  padding:20px 22px;
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
}
.why-card:hover{ border-color: rgba(212,175,55,.4); transform: translateX(4px); }
.why-icon{
  display:inline-flex; align-items:center; justify-content:center;
  width:44px; height:44px; border-radius:12px; flex-shrink:0;
  background: rgba(212,175,55,.12); color: var(--gold-light);
}
[data-theme="light"] .why-icon{ color: var(--gold-dark); }
.why-icon .icon{ width:20px; height:20px; }
.why-copy h3{ color:var(--text-primary); font-size:1.05rem; margin-bottom:4px; }
.why-copy p{ color: var(--text-secondary); font-size:.88rem; margin:0; }
.why-card .short-desc{ display:none; }

.why-media{
  position:relative; border-radius: var(--radius-lg); overflow:hidden;
  border:1px solid var(--border-color); min-height:340px;
}
.why-media img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }

@media (max-width: 960px){
  .why-layout{ grid-template-columns:1fr; }
  .why-media{ min-height:260px; order:-1; }
}

/* ---------- Process ---------- */
.process{ padding:80px 0 50px; background: var(--surface-bg); transition: background var(--transition); position:relative; overflow:hidden; }
.process .section-head{ margin-bottom:24px; }
.process::before, .process::after{
  content:""; position:absolute; border-radius:50%; z-index:0; pointer-events:none;
  filter: blur(60px);
}
.process::before{ width:320px; height:320px; top:-120px; left:-100px; background: radial-gradient(circle, var(--blob-tint), transparent 70%); }
.process::after{ width:360px; height:360px; bottom:-140px; right:-110px; background: radial-gradient(circle, var(--blob-tint), transparent 70%); }
.process .container{ position:relative; z-index:1; }

/* Flowing wave path (desktop) */
.wave-timeline{ position:relative; height:360px; margin-top:10px; }
.wave-svg{ position:absolute; inset:0; width:100%; height:100%; }
.wave-svg path{
  fill:none; stroke:var(--gold); stroke-width:2; stroke-linecap:round;
  stroke-dasharray:2 12; opacity:.6;
  animation: wave-flow 18s linear infinite;
}
@keyframes wave-flow{ to{ stroke-dashoffset:-280; } }
.wave-step{ position:absolute; transform:translate(-50%,-50%); text-align:left; }
.wave-dot{
  position:absolute; top:0; left:0; transform:translate(-50%,-50%);
  width:14px; height:14px; border-radius:50%; z-index:3;
  background: var(--gold-gradient);
  box-shadow: 0 0 0 6px var(--surface-bg), 0 0 18px rgba(212,175,55,.5);
}
.wave-text{ position:absolute; top:28px; left:-8px; width:230px; z-index:1; }
.wave-text h3{ font-size:1.05rem; margin-bottom:2px; }
.wave-text p{ font-size:.85rem; color:var(--text-secondary); margin:0; }
.wave-num{
  position:absolute; top:-11px; left:130px;
  font-family:var(--font-head); font-weight:800; font-size:3.8rem; line-height:1;
  color:transparent; -webkit-text-stroke:1px var(--border-strong); z-index:0; user-select:none;
}
.wave-step:hover .wave-num{ -webkit-text-stroke:1px rgba(212,175,55,.6); }
.wave-step:hover h3{ color: var(--gold); transition: color var(--transition); }

@media (prefers-reduced-motion: reduce){
  .wave-svg path{ animation:none; }
}

/* Mobile stacked fallback — the wave layout only works with room to breathe */
.wave-mobile{ display:none; }
.wave-mobile-item{ display:flex; gap:18px; align-items:flex-start; padding:18px 0; border-bottom:1px solid var(--border-color); }
.wave-mobile-item:last-child{ border-bottom:none; }
.wave-mobile-num{
  flex-shrink:0; width:40px; height:40px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  border:2px solid var(--border-color); color:var(--gold);
  font-family:var(--font-head); font-weight:700; font-size:.9rem;
}
.wave-mobile-item h3{ font-size:1.05rem; margin-bottom:4px; }
.wave-mobile-item p{ font-size:.85rem; color:var(--text-secondary); margin:0; }

@media (max-width: 860px){
  .wave-timeline{ display:none; }
  .wave-mobile{ display:block; }
}

/* ---------- Portfolio (alt panel) ---------- */
.products{ background: var(--page-bg); transition: background var(--transition); }
.products .section-head{ margin-bottom:24px; }

/* ---------- Contact ---------- */
.contact{ padding:120px 0; background: var(--surface-bg); transition: background var(--transition); }
.contact-inner{ display:grid; grid-template-columns: .9fr 1.1fr; gap:70px; }
.contact-info h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); margin:14px 0 18px; }
.contact-info p{ color: var(--text-secondary); margin-bottom:30px; }
.contact-details{ display:flex; flex-direction:column; gap:18px; }
.contact-details li{ display:flex; align-items:center; gap:14px; color: var(--text-primary); font-size:.95rem; }
.icon-circle{
  width:42px; height:42px; border-radius:50%; background: var(--icon-chip-bg); color:var(--gold-dark);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
[data-theme="light"] .icon-circle{ color: var(--gold-dark); }
:root:not([data-theme="light"]) .icon-circle{ color: var(--gold-light); }
.icon-circle .icon{ width:19px; height:19px; }

.contact-form{
  background: var(--card-bg); border:1px solid var(--border-color); border-radius: var(--radius-lg);
  padding:44px; display:flex; flex-direction:column; gap:20px;
  box-shadow: 0 30px 70px rgba(0,0,0,.12);
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.contact-form label{
  display:block; font-size:.78rem; font-weight:600; letter-spacing:.04em;
  text-transform:uppercase; color: var(--text-tertiary); margin-bottom:8px;
}
.contact-form input, .contact-form textarea{
  width:100%; padding:15px 18px; border-radius:12px;
  background: var(--surface-bg); border:1px solid var(--border-color); color: var(--text-primary);
  font-size:.92rem; resize:vertical;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.contact-form input:focus, .contact-form textarea:focus{
  outline:none; border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(212,175,55,.14);
}
.contact-form input::placeholder, .contact-form textarea::placeholder{ color: var(--text-tertiary); }
.form-note{ font-size:.78rem; color: var(--text-tertiary); text-align:center; }
.form-success{
  display:none; align-items:center; justify-content:center; gap:8px;
  color: var(--gold-dark); font-size:.88rem; text-align:center; margin-top:4px;
}
:root:not([data-theme="light"]) .form-success{ color: var(--gold-light); }
.form-success.show{ display:flex; }
.form-error{
  display:none; align-items:center; justify-content:center; gap:8px;
  color:#e5484d; font-size:.88rem; text-align:center; margin-top:4px;
}
.form-error.show{ display:flex; }

/* ---------- Footer ---------- */
.site-footer{ background: var(--page-bg); border-top:1px solid var(--border-color); padding-top:80px; transition: background var(--transition); }
.footer-inner{ display:grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap:40px; padding-bottom:50px; }
.footer-brand p{ color: var(--text-secondary); font-size:.9rem; margin-top:16px; max-width:280px; }
.footer-col h4{ font-family:var(--font-body); font-size:.85rem; letter-spacing:.08em; text-transform:uppercase; color: var(--text-primary); margin-bottom:20px; }
.footer-col ul{ display:flex; flex-direction:column; gap:12px; }
.footer-col a, .footer-col li{ color: var(--text-secondary); font-size:.9rem; }
.footer-col a{ transition: color var(--transition); }
.footer-col a:hover{ color: var(--gold-dark); }
:root:not([data-theme="light"]) .footer-col a:hover{ color: var(--gold-light); }

.footer-bottom{
  border-top:1px solid var(--border-color);
  padding:26px 0;
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:10px;
}
.footer-bottom p{ color: var(--text-tertiary); font-size:.85rem; }
.footer-bottom a{ color: var(--text-tertiary); transition: color var(--transition); }
.footer-bottom a:hover{ color: var(--gold-dark); }
:root:not([data-theme="light"]) .footer-bottom a:hover{ color: var(--gold-light); }

/* ---------- Back to top ---------- */
.back-to-top{
  position:fixed; bottom:26px; right:26px; z-index:900;
  width:46px; height:46px; border-radius:50%;
  background: var(--gold-gradient); color: var(--on-gold);
  display:flex; align-items:center; justify-content:center;
  font-size:1.1rem; box-shadow: var(--shadow-gold);
  opacity:0; visibility:hidden; transform: translateY(10px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}
.back-to-top .icon{ width:18px; height:18px; }
.back-to-top.show{ opacity:1; visibility:visible; transform:translateY(0); }

/* ---------- Reveal animation ---------- */
.reveal-up{
  opacity:0; transform: translateY(32px) scale(.97);
  transition: opacity .8s cubic-bezier(.16,1,.3,1) var(--d, 0s), transform .8s cubic-bezier(.16,1,.3,1) var(--d, 0s);
  will-change: opacity, transform;
}
.reveal-up.in-view{ opacity:1; transform:translateY(0) scale(1); }

@media (prefers-reduced-motion: reduce){
  .reveal-up{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
  .portfolio-track{ animation:none; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1100px){
  .service-grid{ grid-template-columns: repeat(3, 1fr); gap:20px; }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 960px){
  .main-nav{
    position:fixed; top:0; right:0; height:100vh; width:min(320px, 82vw);
    background: var(--dropdown-bg); border-left:1px solid var(--border-color);
    padding:110px 30px 40px;
    transform: translateX(100%);
    transition: transform var(--transition), background var(--transition);
    z-index:999;
  }
  .main-nav.open{ transform: translateX(0); }
  .nav-backdrop{
    position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(0,0,0,.55);
    opacity:0; visibility:hidden; transition: opacity var(--transition);
    z-index:998; pointer-events:none;
  }
  .nav-backdrop.show{ opacity:1; visibility:visible; pointer-events:auto; }
  .main-nav ul{ flex-direction:column; align-items:flex-start; gap:22px; }
  .has-dropdown .dropdown{
    position:static; opacity:1; visibility:visible; transform:none; display:none;
    background:transparent; border:none; box-shadow:none; padding:14px 0 0 12px; min-width:0;
  }
  .has-dropdown.open .dropdown{ display:flex; flex-direction:column; gap:10px; }
  .nav-toggle{ display:flex; }
  .header-actions .btn-sm{ display:none; }

  .about-inner, .contact-inner{ grid-template-columns:1fr; gap:50px; }
  .about-media{ max-width:380px; margin-inline:auto; }
  .service-grid{ grid-template-columns: 1fr 1fr; }
  .why-card{ padding:18px 20px; }
  .process{ padding:60px 0; }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px){
  .container{ padding-inline:18px; }
  .hero{ padding-top:120px; }
  .hero-stats{ display:grid; grid-template-columns:1fr 1fr; gap:0; }
  .hero-stat{
    border-right:1px solid rgba(255,255,255,.15); border-bottom:1px solid rgba(255,255,255,.15);
    padding:16px 10px;
  }
  .hero-stat:nth-child(2n){ border-right:none; }
  .hero-stat:nth-last-child(-n+2){ border-bottom:none; }
  .hero-stat strong{ font-size:1.5rem; }
  .service-grid{ grid-template-columns: 1fr; }
  .why-card{ padding:16px 16px; gap:12px; }
  .why-icon{ width:38px; height:38px; border-radius:11px; }
  .why-icon .icon{ width:18px; height:18px; }
  .why-copy h3{ font-size:.95rem; margin-bottom:3px; }
  .why-copy p{ font-size:.8rem; line-height:1.5; }
  .why-card .full-desc{ display:none; }
  .why-card .short-desc{ display:block; }
  .process{ padding:50px 0; }
  .timeline-card{ padding:22px 22px; }
  .timeline-num{ font-size:2.8rem; }
  .timeline-card h3{ font-size:1.05rem; }
  .timeline-card p{ font-size:.85rem; }
  .form-row{ grid-template-columns:1fr; }
  .footer-inner{ grid-template-columns: 1fr; gap:34px; padding-bottom:34px; }
  .footer-bottom{ flex-direction:column; text-align:center; }
  .contact-form{ padding:26px; }
}