/* ---------- Tokens ---------- */
:root{
  --black: #0b0b0c;
  --coal: #121214;
  --charcoal: #17171a;
  --charcoal-2: #1f1f22;
  --line: #2a2a2c;
  --ivory: #f3f1ea;
  --stone: #a8a296;
  --gold-light: #f0d890;
  --gold: #c9a24a;
  --gold-dark: #8a6b23;

  --font-display: "Bodoni Moda", "Playfair Display", Georgia, serif;
  --font-body: "Manrope", -apple-system, BlinkMacSystemFont, sans-serif;

  --wrap: 1200px;
  --radius: 14px;
  --ease: cubic-bezier(.16,.8,.24,1);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

body{
  margin:0;
  background: var(--black);
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img,svg{ max-width: 100%; display:block; }

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.07;
  letter-spacing: -0.01em;
  margin: 0 0 .5em;
  color: var(--ivory);
}
h1{ font-size: clamp(2.4rem, 5.5vw, 4.6rem); font-weight: 600; letter-spacing: -0.02em; }
h1 em, h2 em{ font-style: italic; color: var(--gold-light); }
h2{ font-size: clamp(1.9rem, 4vw, 3.1rem); max-width: 20ch; }
h3{ font-size: 1.3rem; font-weight: 600; }

p{ margin: 0 0 1em; color: var(--stone); max-width: 62ch; }
a{ color: inherit; text-decoration: none; }

.wrap{ max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }

.eyebrow{
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 1.1em;
}

.skip-link{
  position:absolute; left:-9999px; top:0; background:var(--gold); color:var(--black);
  padding:.6em 1em; z-index: 1000; font-weight:700;
}
.skip-link:focus{ left: 16px; top: 16px; }

.visually-hidden{
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.grain{
  position: fixed; inset: 0; pointer-events: none; z-index: 2; 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; justify-content:center; gap:.5em;
  padding: .75em 1.5em; border-radius: 999px; font-weight: 700; font-size: .92rem;
  border: 1px solid transparent; white-space: nowrap;
  transition: transform .35s var(--ease), background .3s, color .3s, border-color .3s;
}
.btn-lg{ padding: .95em 1.9em; font-size: 1rem; }
.btn-gold{ background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: #1a1408; }
.btn-gold:hover{ transform: translateY(-2px); }
.btn-line{ border-color: rgba(243,241,234,.35); color: var(--ivory); }
.btn-line:hover{ border-color: var(--gold); color: var(--gold-light); }

/* ---------- Language switch ---------- */
.lang-switch select{
  appearance: none; -webkit-appearance: none;
  background: transparent; color: var(--ivory);
  border: 1px solid rgba(243,241,234,.28); border-radius: 999px;
  font-family: var(--font-body); font-weight: 700; font-size: .78rem; letter-spacing: .08em;
  padding: .55em 2em .55em 1em; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5' viewBox='0 0 8 5'%3E%3Cpath d='M0 0l4 5 4-5z' fill='%23c9a24a'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .8em center;
  transition: border-color .25s;
}
.lang-switch select:hover{ border-color: var(--gold); }
.lang-switch select:focus{ outline: 2px solid var(--gold); outline-offset: 1px; }
.lang-switch option{ background: var(--coal); color: var(--ivory); }

/* ---------- Header ---------- */
.site-header{
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0; transition: background .4s var(--ease), border-color .4s var(--ease), padding .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled{
  background: rgba(11,11,12,.86); backdrop-filter: blur(10px);
  border-color: var(--line); padding: 10px 0;
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; gap: 24px; }

.brand{ display:flex; align-items:center; }
.brand-img{
  display:block; width: 340px; height: 66px;
  object-fit: cover; object-position: center;
  mix-blend-mode: screen;
  transition: width .3s var(--ease), height .3s var(--ease);
}
.site-header.is-scrolled .brand-img{ width: 280px; height: 54px; }
.w-ivory{ color: var(--ivory); }
.w-gold{ color: var(--gold); font-weight: 700; }

.main-nav{ display:flex; gap: 30px; }
.main-nav a{
  font-size: .92rem; font-weight: 600; color: var(--stone); transition: color .25s;
  background: linear-gradient(90deg, var(--gold), var(--gold)) no-repeat left bottom / 0 1px;
  padding-bottom: 3px; transition: color .25s, background-size .35s var(--ease);
}
.main-nav a:hover{ color: var(--ivory); background-size: 100% 1px; }

.header-actions{ display:flex; align-items:center; gap: 12px; }
.nav-toggle{ display:none; }

/* ---------- Hero ---------- */
.hero{ position: relative; min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; }
.hero-media{ position: absolute; inset: 0; }
.hero-media img{ width: 100%; height: 112%; object-fit: cover; object-position: center 40%; }
.hero-shade{
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(11,11,12,.55) 0%, rgba(11,11,12,.25) 40%, rgba(11,11,12,.93) 100%),
    radial-gradient(70% 60% at 20% 80%, rgba(11,11,12,.75), transparent 70%);
}
.hero-inner{ position: relative; width: 100%; padding-top: 20vh; padding-bottom: 7vh; max-width: 980px; }
.hero-sub{ font-size: 1.1rem; max-width: 54ch; }
.hero-cta{ display:flex; gap: 16px; flex-wrap: wrap; margin-top: 34px; }

.hero-foot{ position: relative; border-top: 1px solid rgba(243,241,234,.14); background: rgba(11,11,12,.45); backdrop-filter: blur(6px); }
.hero-facts{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding: 20px 32px; }
.fact{ display: grid; gap: 2px; }
.fact-label{ font-size: .68rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--gold); }
.fact-value{ font-size: .95rem; font-weight: 600; color: var(--ivory); }

/* ---------- Marquee strip ---------- */
.strip{ border-bottom: 1px solid var(--line); overflow: hidden; background: var(--charcoal); }
.strip-track{ display:flex; align-items:center; gap: 34px; padding: 16px 0; width: max-content; animation: marquee 26s linear infinite; }
.strip-track span{ font-family: var(--font-display); font-style: italic; font-size: 1.05rem; color: var(--gold); white-space: nowrap; }
.strip-track i{ font-style: normal; color: var(--stone); font-size: .55rem; }
@keyframes marquee{ from{ transform: translateX(0); } to{ transform: translateX(-50%); } }

/* ---------- Reveal ---------- */
.reveal{ opacity: 0; transform: translateY(24px); transition: opacity .85s var(--ease), transform .85s var(--ease); }
.reveal.is-visible{ opacity: 1; transform: translateY(0); }
.hero .reveal:nth-child(1){ transition-delay: .05s; }
.hero .reveal:nth-child(2){ transition-delay: .15s; }
.hero .reveal:nth-child(3){ transition-delay: .25s; }
.hero .reveal:nth-child(4){ transition-delay: .35s; }

/* ---------- Technique ---------- */
.about{ padding: 140px 0; }
.about-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap: 80px; align-items: center; }
.about-facts{ list-style:none; margin: 2em 0 0; padding: 0; display:grid; gap: 18px; }
.about-facts li{ padding-left: 22px; border-left: 2px solid var(--gold); color: var(--stone); font-size: .95rem; }
.about-facts span{ display:block; color: var(--ivory); font-weight: 700; font-family: var(--font-display); font-size: 1.05rem; margin-bottom: .15em; }
.about-facts em{ font-style: normal; }

.blueprint{
  margin: 0; background: var(--coal); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px;
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.7);
}
.blueprint-svg{ width: 100%; height: auto; }
.bp-sub{ font-family: var(--font-display); font-style: italic; font-weight: 500; font-size: 15px; fill: var(--gold); letter-spacing: .16em; }
.bp-note{ font-family: var(--font-display); font-style: italic; font-size: 14.5px; fill: var(--stone); letter-spacing: .06em; }
.bp-progress{ font-family: var(--font-display); font-style: italic; font-weight: 600; font-size: 23px; fill: var(--gold-light); }
#depthMark{ transition: opacity .3s; }

.bp-controls{ display:flex; align-items:center; gap: 16px; padding: 18px 8px 6px; }
.bp-side{
  font-family: var(--font-body); font-weight: 700; font-size: .7rem;
  letter-spacing: .2em; text-transform: uppercase; color: var(--stone); white-space: nowrap;
}
.bp-side-after{ color: var(--gold); }

#dentSlider{
  -webkit-appearance: none; appearance: none; flex: 1; height: 4px; border-radius: 2px;
  background: var(--line); cursor: pointer; margin: 0;
}
#dentSlider::-webkit-slider-thumb{
  -webkit-appearance: none; appearance: none; width: 22px; height: 22px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  border: 2px solid #1a1408; box-shadow: 0 2px 10px rgba(0,0,0,.55); cursor: grab;
}
#dentSlider::-moz-range-thumb{
  width: 20px; height: 20px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  border: 2px solid #1a1408; box-shadow: 0 2px 10px rgba(0,0,0,.55); cursor: grab;
}
#dentSlider:focus-visible{ outline: 2px solid var(--gold); outline-offset: 4px; }

/* ---------- Advantages ---------- */
.advantages{ padding: 0 0 140px; }
.advantages h2{ margin-bottom: 56px; }
.adv-grid{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 2px;
  background: var(--line); border-radius: var(--radius); overflow: hidden;
}
.adv-card{ background: var(--charcoal); padding: 36px; transition: background .3s, box-shadow .3s; }
.adv-card:hover{ background: var(--charcoal-2); box-shadow: inset 0 2px 0 var(--gold); }
.adv-index{ font-family: var(--font-display); font-style: italic; color: var(--gold); font-size: 1.05rem; opacity: .85; display:block; margin-bottom: 18px; }
.adv-card h3{ font-size: 1.15rem; }
.adv-card p{ margin: 0; font-size: .92rem; }

@media (max-width: 960px){ .adv-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px){ .adv-grid{ grid-template-columns: 1fr; } }

/* ---------- Services ---------- */
.services{ padding: 0 0 120px; }
.services > .wrap{ padding-bottom: 40px; }
.service-rows{ display:grid; border-top: 1px solid var(--line); }
.service-row{ display:grid; grid-template-columns: 1fr 1fr; align-items: stretch; border-bottom: 1px solid var(--line); }
.service-row:nth-child(even) .service-media{ order: 2; }
.service-media{ overflow: hidden; min-height: 320px; }
.service-media img{ width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.service-media .img-tone{ filter: brightness(.82) contrast(1.06) saturate(.85); }
.service-row:hover .service-media img{ transform: scale(1.04); }
.service-text{ padding: 60px 68px; display:flex; flex-direction: column; justify-content: center; background: var(--black); }
.service-no{ font-family: var(--font-display); font-style: italic; font-size: 1rem; color: var(--gold); letter-spacing: .1em; margin-bottom: 16px; }
.service-text h3{ font-size: 1.55rem; }
.service-text p{ margin: 0; font-size: .96rem; }

@media (max-width: 860px){
  .service-row{ grid-template-columns: 1fr; }
  .service-media{ order: 2; min-height: 220px; max-height: 300px; }
  .service-text{ padding: 36px 32px 52px; }
}

/* ---------- Why ---------- */
.why{ padding: 140px 0 120px; }
.why h2{ margin-bottom: .6em; }
.why-story{ font-size: 1.08rem; max-width: 58ch; margin-bottom: 48px; }
.why-list{ display:grid; gap: 0; border-top: 1px solid var(--line); max-width: 820px; }
.why-item{ display:grid; grid-template-columns: 80px 1fr; gap: 24px; padding: 38px 0; border-bottom: 1px solid var(--line); }
.why-num{ font-family: var(--font-display); font-style: italic; color: var(--gold); font-size: 1.7rem; line-height: 1.1; }
.why-item h3{ margin-bottom: .35em; }
.why-item p{ margin: 0; font-size: .96rem; max-width: 58ch; }

/* ---------- Quote band ---------- */
.band{ position: relative; min-height: 56vh; display:flex; align-items:center; overflow:hidden; }
.band-img{ position:absolute; inset:0; width:100%; height:114%; object-fit:cover; object-position:center; }
.band-shade{ position:absolute; inset:0; background: rgba(11,11,12,.76); }
.band-inner{ position: relative; padding: 90px 32px; }
.band blockquote{ margin:0; }
.band blockquote p{
  font-family: var(--font-display); font-style: italic; font-weight: 500;
  font-size: clamp(1.7rem, 3.6vw, 2.9rem); line-height: 1.2; color: var(--ivory);
  max-width: 22ch; margin-bottom: .6em;
}
.band cite{ font-style: normal; font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--gold); }

/* ---------- Process ---------- */
.process{ padding: 140px 0; }
.process h2{ margin-bottom: 60px; }
.process-line{ list-style:none; margin:0; padding:0; display:grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; }
.process-line::before{
  content:""; position:absolute; top: 20px; left: 4%; right: 4%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 10%, var(--line) 90%, transparent);
}
.process-line li{ position: relative; }
.process-num{ display:block; font-family: var(--font-display); font-size: 1.6rem; color: var(--gold); margin-bottom: 18px; background: var(--black); width: fit-content; padding-right: 14px; position: relative; z-index: 1; }
.process-line h3{ font-size: 1.05rem; }
.process-line p{ font-size: .92rem; }

@media (max-width: 860px){
  .process-line{ grid-template-columns: 1fr; gap: 36px; }
  .process-line::before{ display:none; }
}

/* ---------- Contact ---------- */
.contact{ padding: 0 0 110px; }
.contact-panel{ display:grid; grid-template-columns: 34% 66%; min-height: 560px; margin: 0 32px; border-radius: 20px; overflow: hidden; box-shadow: 0 40px 90px -30px rgba(0,0,0,.6); }
.contact-gold{
  position: relative; padding: 56px 40px; display:flex; flex-direction: column; align-items:center; justify-content: center; gap: 14px;
  background: #0d0d0f;
  color: var(--ivory);
  text-align: center;
  border-right: 1px solid rgba(201,162,74,.35);
  overflow: hidden;
}
.contact-gold::after{
  content:""; position:absolute; inset:0;
  background: linear-gradient(115deg, transparent 40%, rgba(201,162,74,.08) 41%, transparent 42%),
              linear-gradient(115deg, transparent 55%, rgba(201,162,74,.07) 56%, transparent 57%),
              linear-gradient(115deg, transparent 70%, rgba(201,162,74,.05) 71%, transparent 72%);
}
.contact-logo{
  display:block; width: min(470px, 100%); height: auto;
  mix-blend-mode: screen; position: relative; z-index: 1;
}

.contact-dark{ background: var(--charcoal); padding: 64px 56px; }
.contact-dark h2{ margin-bottom: 40px; }
.contact-grid{ display:grid; grid-template-columns: 1fr 1.2fr; gap: 56px; }

.contact-list{ margin:0; display:grid; gap: 20px; }
.contact-list dt{ font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--stone); margin-bottom: 4px; }
.contact-list dd{ margin: 0; font-size: 1.02rem; font-weight: 600; }
.contact-list a:hover{ color: var(--gold); }

.contact-form{ display:grid; gap: 16px; }
.contact-form label{ display:grid; gap: 6px; font-size: .82rem; color: var(--stone); }
.contact-form input, .contact-form textarea{
  background: var(--black); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px;
  color: var(--ivory); font-family: var(--font-body); font-size: .95rem; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus{ outline: 2px solid var(--gold); outline-offset: 1px; border-color: var(--gold); }
.contact-form .btn{ justify-self: start; margin-top: 4px; }
.form-note{ font-size: .85rem; color: var(--gold-light); min-height: 1.2em; margin: 0; }

@media (max-width: 900px){
  .contact-panel{ grid-template-columns: 1fr; margin: 0 16px; }
  .contact-grid{ grid-template-columns: 1fr; }
  .contact-gold{ padding: 44px 40px; border-right: none; border-bottom: 1px solid rgba(201,162,74,.35); }
}

/* ---------- Footer ---------- */
.site-footer{ border-top: 1px solid var(--line); padding: 32px 0; }
.footer-img{ width: 170px; height: 58px; object-fit: cover; object-position: center; mix-blend-mode: screen; }
.footer-inner{ display:flex; align-items:center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-inner p{ margin:0; font-size: .85rem; }
.footer-inner a{ text-decoration: underline; text-underline-offset: 3px; }
.footer-inner a:hover{ color: var(--gold-light); }

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .about-grid{ grid-template-columns: 1fr; gap: 56px; }
  .blueprint{ max-width: 520px; }
  .about, .why, .process{ padding: 90px 0; }
  .advantages{ padding: 0 0 90px; }
}

@media (max-width: 800px){
  .main-nav{ display: none; }
  .nav-toggle{
    display:flex; flex-direction: column; gap: 5px; background:none; border:none; padding: 8px; cursor:pointer;
  }
  .nav-toggle span{ width: 22px; height: 2px; background: var(--ivory); display:block; transition: transform .3s, opacity .3s; }

  body.nav-open .main-nav{
    display:flex; flex-direction: column; position: fixed; inset: 76px 0 0 0; background: var(--black);
    padding: 40px 32px; gap: 24px; z-index: 90; font-size: 1.2rem;
  }
  body.nav-open .nav-toggle span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2){ opacity: 0; }
  body.nav-open .nav-toggle span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

  .hero-facts{ grid-template-columns: 1fr; gap: 12px; padding: 18px 32px; }
}

@media (max-width: 560px){
  .wrap{ padding: 0 20px; }
  .hero-facts{ padding: 16px 20px; }
  .band-inner{ padding: 80px 20px; }
  .header-actions{ gap: 8px; }
  .header-actions .btn{ padding: .55em 1em; font-size: .78rem; }
  .lang-switch select{ padding: .5em 1.8em .5em .8em; font-size: .72rem; }
  .brand-img, .site-header.is-scrolled .brand-img{ width: 48px; height: 48px; }
  .contact-dark{ padding: 44px 28px; }
}