:root {
  --ink: #0b0c0b;
  --graphite: #151716;
  --sand: #c5a56a;
  --sand-bright: #d8b978;
  --ivory: #f2efe7;
  --stone: #a09d94;
  --line: rgba(197, 165, 106, 0.22);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--ivory);
  font-family: Arial, Helvetica, sans-serif;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  height: 74px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 clamp(24px, 4vw, 72px);
  background: rgba(11, 12, 11, 0.82);
  border-bottom: 1px solid rgba(242, 239, 231, 0.11);
  backdrop-filter: blur(14px);
}
.monogram {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--sand);
}
nav { display: flex; gap: clamp(24px, 4vw, 58px); }
nav a {
  position: relative;
  padding: 25px 0;
  font-size: 15px;
  color: rgba(242, 239, 231, 0.78);
}
nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--sand);
  transition: right 180ms ease;
}
nav a:hover::after { right: 0; }
.language { justify-self: end; display: flex; align-items: center; gap: 8px; }
.language button {
  border: 0;
  background: transparent;
  color: #77766f;
  cursor: pointer;
  padding: 8px 4px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}
.language button.active { color: var(--sand-bright); }
.language span { color: #555; }

.hero {
  position: relative;
  min-height: 720px;
  height: min(820px, 100vh);
  overflow: hidden;
  background:
    radial-gradient(circle at 65% 35%, rgba(197,165,106,.08), transparent 34%),
    linear-gradient(110deg, var(--ink) 0 52%, #24231f 52% 100%);
}
.blueprint {
  position: absolute;
  inset: 74px 0 0 0;
  opacity: .22;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(90deg, transparent 0, black 36%, black 70%, transparent);
}
.hero-copy {
  position: relative;
  z-index: 3;
  width: 58%;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 106px 40px 68px max(32px, calc((100vw - 1200px) / 2));
  background: linear-gradient(90deg, rgba(11,12,11,.98) 0 62%, rgba(11,12,11,.76) 85%, transparent);
}
.eyebrow, .section-label {
  margin: 0 0 24px;
  color: var(--sand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.eyebrow::before, .section-label::before {
  content: "";
  display: inline-block;
  width: 42px;
  height: 2px;
  margin: 0 16px 4px 0;
  background: var(--sand);
}
h1 {
  margin: 0;
  max-width: 790px;
  font-size: clamp(64px, 6.2vw, 96px);
  line-height: .89;
  letter-spacing: -.055em;
  text-transform: uppercase;
}
.role {
  margin: 24px 0 0;
  color: var(--stone);
  font-size: clamp(18px, 1.6vw, 25px);
}
.lead {
  max-width: 720px;
  margin: 26px 0 0;
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.62;
  color: rgba(242,239,231,.88);
}
.hero-actions, .contact-actions { display: flex; gap: 16px; margin-top: 30px; }
.button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 34px;
  border: 1px solid var(--sand);
  font-size: 16px;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}
.button:hover { transform: translateY(-2px); }
.primary { background: var(--sand); color: var(--ink); }
.primary:hover { background: var(--sand-bright); }
.secondary { color: var(--sand-bright); }
.secondary:hover { background: var(--sand); color: var(--ink); }
.location {
  position: absolute;
  left: max(32px, calc((100vw - 1200px) / 2));
  bottom: 25px;
  margin: 0;
  color: #77766f;
  font-size: 13px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.hero-portrait {
  position: absolute;
  z-index: 2;
  inset: 74px 0 0 52%;
  background-image: linear-gradient(90deg, var(--ink) 0, transparent 22%), url("assets/sergey-hero-real.jpg");
  background-size: cover;
  background-position: center top;
}
.scroll-cue {
  position: absolute;
  z-index: 5;
  bottom: 30px;
  left: 50%;
  color: var(--sand);
  font-size: 34px;
  animation: float 1.8s ease-in-out infinite;
}

.section {
  padding: 82px max(28px, calc((100vw - 1200px) / 2));
  border-top: 1px solid rgba(242,239,231,.1);
}
.section h2, .contact h2 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(38px, 4.2vw, 64px);
  line-height: 1.03;
  letter-spacing: -.04em;
}
.about {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px 74px;
  background: var(--ivory);
  color: var(--graphite);
}
.about .section-label { grid-column: auto; }
.section-intro {
  align-self: end;
  max-width: 650px;
  margin: 0;
  color: #53544f;
  font-size: 18px;
  line-height: 1.65;
}
.about-copy { display: grid; gap: 34px; }
.about-copy img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  object-position: center 22%;
  border-radius: 2px;
  filter: saturate(.82);
}
.stats {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(21,23,22,.18);
}
.stats article { padding: 30px 28px 0 0; }
.stats strong { display: block; color: #9d7d44; font-size: 32px; }
.stats span { display: block; margin-top: 10px; color: #686963; }

.experience {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 28px 68px;
  align-items: center;
  background: #121412;
}
.experience-copy > p:last-child {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--stone);
  font-size: 19px;
  line-height: 1.7;
}
.logo-board {
  position: relative;
  aspect-ratio: 25 / 18;
  overflow: hidden;
  border: 1px solid rgba(197,165,106,.3);
  background: #050605;
}
.logo-board img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.experience-note {
  grid-column: 2;
  margin: -10px 0 0;
  color: #77766f;
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.services { background: #101211; }
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 44px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.service-grid article {
  min-height: 210px;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 180ms ease;
}
.service-grid article:hover { background: rgba(197,165,106,.07); }
.service-grid span, .project-card > span, .process-grid span { color: var(--sand); font-size: 13px; letter-spacing: .15em; }
.service-grid h3, .project-card h3, .process-grid h3 { margin: 34px 0 14px; font-size: 23px; }
.service-grid p, .project-card p, .process-grid p { color: var(--stone); line-height: 1.65; }

.projects { background: #191b19; }
.project-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; margin-top: 44px; }
.project-card {
  position: relative;
  overflow: hidden;
  min-height: 220px;
  display: flex;
  justify-content: space-between;
  padding: 28px;
  border: 1px solid var(--line);
  background: #121412;
}
.project-card.featured { grid-row: span 2; min-height: 456px; align-items: flex-end; background: #0b0c0b; }
.project-card.featured::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(11,12,11,.12) 25%, rgba(11,12,11,.94) 90%);
}
.tesoro-emblem {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: .92;
}
.project-card > span, .project-card > div { position: relative; z-index: 2; }
.project-card div { max-width: 540px; }
.project-card h3 { margin-top: 16px; font-size: clamp(32px, 4vw, 64px); }
.project-card:not(.featured) h3 {
  font-size: clamp(28px, 3vw, 42px);
  overflow-wrap: anywhere;
}
.project-card div > p:first-child { color: var(--sand); font-size: 11px; letter-spacing: .15em; }

.tesoro-case { background: var(--ivory); color: var(--graphite); }
.case-heading {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 54px;
  align-items: end;
}
.case-heading > p {
  margin: 0;
  color: #63645e;
  font-size: 19px;
  line-height: 1.7;
}
.case-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 44px;
  border-top: 1px solid rgba(21,23,22,.2);
  border-bottom: 1px solid rgba(21,23,22,.2);
}
.case-facts article { padding: 22px 26px 24px 0; }
.case-facts article + article { padding-left: 30px; border-left: 1px solid rgba(21,23,22,.16); }
.case-facts span {
  display: block;
  color: #9d7d44;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.case-facts strong { display: block; margin-top: 12px; font-size: 20px; line-height: 1.35; }
.case-documents {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}
.case-documents article {
  position: relative;
  overflow: hidden;
  min-width: 0;
  border: 1px solid rgba(21,23,22,.16);
  background: #fff;
}
.case-documents img {
  display: block;
  width: 100%;
  aspect-ratio: 842 / 596;
  object-fit: cover;
  transition: transform 220ms ease;
}
.case-documents article:hover img { transform: scale(1.025); }
.case-documents span {
  display: block;
  margin: 16px 18px 0;
  color: #9d7d44;
  font-size: 11px;
  letter-spacing: .15em;
}
.case-documents h3 { min-height: 46px; margin: 8px 18px 18px; font-size: 18px; line-height: 1.3; }
.case-result {
  max-width: 940px;
  margin: 36px auto 0;
  padding-left: 28px;
  border-left: 3px solid var(--sand);
  color: #4d4e49;
  font-size: clamp(19px, 1.7vw, 25px);
  line-height: 1.55;
}

.media { background: #0f1110; }
.media-heading {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 60px;
  align-items: end;
}
.media-heading > p {
  margin: 0;
  color: var(--stone);
  font-size: 19px;
  line-height: 1.65;
}
.media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  max-width: 920px;
  margin: 44px auto 0;
}
.media-grid article {
  overflow: hidden;
  border: 1px solid var(--line);
  background: #171917;
}
.media-grid video {
  display: block;
  width: 100%;
  aspect-ratio: 416 / 752;
  max-height: 510px;
  object-fit: cover;
  background: #050505;
}
.media-grid article > div { padding: 26px 28px 30px; }
.media-grid span {
  color: var(--sand);
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.media-grid h3 { margin: 12px 0 0; font-size: 24px; }

.visual-story {
  display: grid;
  grid-template-columns: 1.05fr .75fr .75fr;
  min-height: 500px;
  background: var(--ivory);
  color: var(--graphite);
}
.visual-story-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 62px max(28px, calc((100vw - 1200px) / 2));
}
.visual-story-copy h2 {
  margin: 0;
  font-size: clamp(38px, 4.2vw, 62px);
  line-height: 1.02;
  letter-spacing: -.04em;
}
.visual-story-copy > p:last-child {
  margin: 32px 0 0;
  color: #64655f;
  font-size: 19px;
  line-height: 1.65;
}
.visual-story > img {
  width: 100%;
  height: 100%;
  min-height: 500px;
  object-fit: cover;
  object-position: center;
  filter: saturate(.82);
}

.process { background: var(--ivory); color: var(--graphite); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 44px; border-top: 1px solid rgba(21,23,22,.2); }
.process-grid article { padding: 34px 32px 0 0; }
.process-grid h3 { margin-top: 30px; }
.process-grid p { color: #666760; }

.contact { padding: 82px max(28px, calc((100vw - 1200px) / 2)); text-align: center; background: #0b0c0b; }
.contact .section-label::before { display: none; }
.contact h2 { margin: 0 auto; }
.contact > p:not(.section-label) { max-width: 680px; margin: 28px auto 0; color: var(--stone); font-size: 20px; line-height: 1.6; }
.contact-actions { justify-content: center; }
.contact-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px 42px; margin-top: 46px; color: var(--sand-bright); }
footer { display: flex; justify-content: space-between; gap: 30px; padding: 28px clamp(28px, 6vw, 110px); border-top: 1px solid rgba(242,239,231,.1); color: #77766f; font-size: 12px; }

@keyframes float { 50% { transform: translateY(8px); } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scroll-cue { animation: none; }
  * { transition: none !important; }
}

@media (max-width: 900px) {
  .site-header { height: 72px; grid-template-columns: 1fr auto; }
  nav { display: none; }
  .hero { min-height: 900px; height: auto; padding-top: 72px; background: var(--ink); }
  .hero-portrait { inset: 72px 0 auto 0; height: 460px; background-image: linear-gradient(0deg, var(--ink), transparent 55%), url("assets/sergey-hero-real.jpg"); background-position: center 22%; }
  .hero-copy { width: 100%; min-height: 900px; justify-content: flex-end; padding: 430px 24px 92px; background: linear-gradient(0deg, var(--ink) 0 58%, transparent); }
  h1 { font-size: clamp(54px, 17vw, 82px); }
  .eyebrow { margin-bottom: 22px; }
  .role { margin-top: 24px; }
  .lead { margin-top: 22px; font-size: 18px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .location { left: 24px; bottom: 34px; }
  .scroll-cue { display: none; }
  .section { padding: 66px 24px; }
  .about { grid-template-columns: 1fr; gap: 42px; }
  .about-copy img { height: 360px; }
  .stats { grid-template-columns: 1fr; }
  .experience { grid-template-columns: 1fr; }
  .logo-board { aspect-ratio: 25 / 18; }
  .experience-note { grid-column: auto; margin-top: -14px; }
  .service-grid { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .project-card.featured { min-height: 380px; grid-row: auto; }
  .case-heading { grid-template-columns: 1fr; gap: 34px; }
  .case-facts { grid-template-columns: 1fr; }
  .case-facts article + article { padding-left: 0; border-left: 0; border-top: 1px solid rgba(21,23,22,.16); }
  .case-documents { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .media-heading { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .media-grid article > div { padding: 20px 16px 24px; }
  .media-grid h3 { font-size: 18px; }
  .visual-story { grid-template-columns: 1fr 1fr; }
  .visual-story-copy { grid-column: 1 / -1; }
  .visual-story > img { min-height: 440px; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .contact { padding: 66px 24px; }
  .contact-actions { flex-direction: column; }
  .contact-list { flex-direction: column; }
  footer { flex-direction: column; }
}

@media (max-width: 520px) {
  .process-grid { grid-template-columns: 1fr; }
  .service-grid h3 { margin-top: 34px; }
  .logo-board { aspect-ratio: 25 / 18; }
  .case-documents { grid-template-columns: 1fr; }
  .case-documents h3 { min-height: 0; }
  .media-grid { grid-template-columns: 1fr; }
  .visual-story { grid-template-columns: 1fr; }
  .visual-story-copy { grid-column: auto; }
  .visual-story > img { min-height: 390px; }
}