/* Renigt — сайт студии. Гамма «Огонь»: белый фон + жёлтый→оранж→красный */
:root {
  --bg: #FBF8F3;
  --ink: #1F140D;
  --dim: rgba(31, 20, 13, 0.55);
  --faint: rgba(31, 20, 13, 0.38);
  --line: rgba(31, 20, 13, 0.09);
  --glass: rgba(255, 255, 255, 0.55);
  --red: #E5484D;
  --orange: #F97316;
  --yellow: #FACC15;
  --grad: linear-gradient(110deg, #FACC15, #F97316 48%, #E5484D);
  --grad-text: linear-gradient(100deg, #E5484D, #F97316 45%, #D97706);
  --font: 'Archivo', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.q-open { overflow: hidden; }

.wrap { max-width: 1280px; margin: 0 auto; padding: 0 36px; }
.mono { font-family: var(--mono); }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; letter-spacing: -0.025em; }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
}
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  transition: background 0.35s, box-shadow 0.35s, border-color 0.35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(251, 248, 243, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 36px; padding: 18px 36px; max-width: 1380px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand img { width: 40px; height: 40px; display: block; }
.brand span { font-size: 20px; font-weight: 700; }
.nav-link { font-size: 15px; color: var(--dim); transition: color 0.25s; }
.nav-link:hover { color: var(--ink); }
.lang { display: flex; gap: 2px; padding: 3px; border-radius: 99px; border: 1px solid var(--line); background: var(--glass); font-family: var(--mono); font-size: 12px; }
.lang button {
  padding: 5px 12px; border-radius: 99px; border: none; background: transparent;
  font-family: var(--mono); font-size: 12px; color: var(--dim); cursor: pointer;
}
.lang button.on { background: var(--ink); color: var(--bg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 17px 34px; border-radius: 14px; border: none; cursor: pointer;
  font-family: var(--font); font-size: 17px; font-weight: 600;
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}
.btn.grad { background: var(--grad); color: #fff; box-shadow: 0 12px 36px rgba(229, 72, 77, 0.28); }
.btn.grad:hover { transform: translateY(-2px); box-shadow: 0 18px 44px rgba(229, 72, 77, 0.38); }
.btn.ghost { background: var(--glass); border: 1px solid var(--line); color: var(--ink); backdrop-filter: blur(12px); }
.btn.ghost:hover { transform: translateY(-2px); border-color: rgba(249, 115, 22, 0.5); }
.btn.sm { padding: 11px 22px; font-size: 15px; border-radius: 12px; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100vh; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.hero-glow { position: absolute; pointer-events: none; }
.hg1 { top: -280px; left: 50%; transform: translateX(-50%); width: 1100px; height: 680px; background: radial-gradient(closest-side, rgba(249, 115, 22, 0.16), transparent); filter: blur(30px); }
.hg2 { top: 180px; right: -180px; width: 560px; height: 560px; background: radial-gradient(closest-side, rgba(229, 72, 77, 0.10), transparent); }
.hg3 { top: 320px; left: -160px; width: 480px; height: 480px; background: radial-gradient(closest-side, rgba(250, 204, 21, 0.14), transparent); }
#fire-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 1020px; margin: 0 auto; padding: 120px 36px 60px; pointer-events: none; }
.hero-content .btn { pointer-events: auto; }
.badge {
  display: inline-flex; align-items: center; gap: 10px; padding: 8px 18px; border-radius: 99px;
  background: var(--glass); border: 1px solid var(--line); backdrop-filter: blur(12px);
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.18em; color: var(--dim);
}
.hero h1 { margin-top: 34px; font-size: clamp(56px, 6.5vw, 94px); line-height: 1.04; font-weight: 700; letter-spacing: -0.03em; text-wrap: balance; }
.grad-text {
  background: linear-gradient(95deg, #FACC15 0%, #F97316 34%, #E5484D 64%, #C2272D 100%);
  background-size: 170% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: grad-shift 5s ease-in-out infinite alternate;
}
@keyframes grad-shift {
  from { background-position: 0% 0; }
  to { background-position: 100% 0; }
}
@media (prefers-reduced-motion: reduce) { .grad-text { animation: none; } }
.hero-sub { margin: 30px auto 0; max-width: 640px; font-size: 21px; line-height: 1.55; color: var(--dim); text-wrap: pretty; }
.hero-cta { display: flex; gap: 16px; justify-content: center; margin-top: 44px; }
.scroll-hint { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); font-family: var(--mono); font-size: 12px; letter-spacing: 0.2em; color: var(--faint); z-index: 2; }

/* ---------- Sections ---------- */
section.block { position: relative; padding: 110px 0; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
.sec-head h2 { font-size: clamp(36px, 4vw, 48px); font-weight: 700; }
.sec-count { font-family: var(--mono); font-size: 13px; color: var(--dim); }
.sec-sub { margin: 0 0 48px; max-width: 560px; font-size: 18px; line-height: 1.55; color: var(--dim); }

/* ---------- Services ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.svc-card {
  position: relative; display: flex; flex-direction: column; gap: 14px; min-height: 290px;
  padding: 26px 22px; border-radius: 20px; background: var(--glass);
  border: 1px solid var(--line); backdrop-filter: blur(18px);
  box-shadow: 0 8px 24px rgba(31, 20, 13, 0.04);
  transition: transform 0.4s var(--ease), box-shadow 0.4s, border-color 0.4s;
}
.svc-card:hover { transform: translateY(-8px); border-color: rgba(249, 115, 22, 0.5); box-shadow: 0 22px 48px rgba(249, 115, 22, 0.16); }
.svc-num { font-family: var(--mono); font-size: 13px; color: var(--faint); transition: color 0.3s; }
.svc-card:hover .svc-num { color: var(--orange); }
.svc-title { font-size: 21px; font-weight: 600; letter-spacing: -0.01em; }
.svc-list { display: flex; flex-direction: column; gap: 8px; margin-top: auto; }
.svc-list span { font-size: 14px; line-height: 1.4; color: var(--dim); }
.svc-arrow { font-size: 18px; color: var(--faint); transition: color 0.3s, transform 0.3s; }
.svc-card:hover .svc-arrow { color: var(--red); transform: translateX(4px); }

/* ---------- Process ---------- */
.prc-grid { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; margin-top: 56px; }
.prc-grid::before {
  content: ""; position: absolute; top: 27px; left: 60px; right: 60px; height: 2px;
  background: var(--grad); opacity: 0.3;
  transform: scaleX(0); transform-origin: left;
  transition: transform 1.5s var(--ease) 0.25s;
}
.prc-grid.in::before { transform: scaleX(1); }
.prc-grid::after {
  content: ""; position: absolute; top: 21px; left: 60px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--grad);
  box-shadow: 0 0 18px rgba(249, 115, 22, 0.85); opacity: 0;
}
@media (prefers-reduced-motion: no-preference) {
  .prc-grid.in::after { animation: prc-spark 4.5s var(--ease) 0.5s infinite; }
  .prc-grid.in .prc-num { animation: prc-pulse 2.8s ease-in-out infinite; }
  .prc-grid.in .prc-step:nth-child(2) .prc-num { animation-delay: 0.35s; }
  .prc-grid.in .prc-step:nth-child(3) .prc-num { animation-delay: 0.7s; }
  .prc-grid.in .prc-step:nth-child(4) .prc-num { animation-delay: 1.05s; }
  .prc-grid.in .prc-step:nth-child(5) .prc-num { animation-delay: 1.4s; }
}
@keyframes prc-spark {
  0% { left: 60px; opacity: 0; }
  8% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: calc(100% - 74px); opacity: 0; }
}
@keyframes prc-pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 8px 22px rgba(249, 115, 22, 0.3); }
  50% { transform: scale(1.09); box-shadow: 0 10px 32px rgba(229, 72, 77, 0.5); }
}
.prc-step { position: relative; display: flex; flex-direction: column; gap: 14px; }
.prc-num {
  width: 56px; height: 56px; border-radius: 50%; background: var(--grad); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 15px; font-weight: 500;
  box-shadow: 0 8px 22px rgba(249, 115, 22, 0.3);
}
.prc-t { font-size: 19px; font-weight: 600; }
.prc-d { margin: 0; font-size: 14.5px; line-height: 1.5; color: var(--dim); }

/* ---------- Cases ---------- */
.case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; }
.case-card {
  border-radius: 22px; overflow: hidden; background: var(--glass); border: 1px solid var(--line);
  backdrop-filter: blur(14px); transition: transform 0.4s var(--ease), box-shadow 0.4s;
}
.case-card:hover { transform: translateY(-6px); box-shadow: 0 22px 48px rgba(31, 20, 13, 0.1); }
.case-cover { width: 100%; height: 250px; display: block; object-fit: cover; }
.case-meta { display: flex; flex-direction: column; gap: 8px; padding: 20px 22px 24px; }
.case-tag { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; color: var(--orange); }
.case-t { font-size: 19px; font-weight: 600; }

/* ---------- Reviews ---------- */
.rev-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; }
.rev-card {
  display: flex; flex-direction: column; gap: 20px; padding: 30px;
  border-radius: 22px; background: var(--glass); border: 1px solid var(--line); backdrop-filter: blur(14px);
}
.rev-q { margin: 0; font-size: 16.5px; line-height: 1.6; color: var(--dim); font-style: italic; }
.rev-who { display: flex; align-items: center; gap: 14px; margin-top: auto; }
.review-avatar { width: 52px; height: 52px; flex-shrink: 0; border-radius: 50%; display: block; }
.rev-n { font-size: 15.5px; font-weight: 600; }
.rev-r { font-size: 13.5px; color: var(--faint); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 26px 4px; cursor: pointer; list-style: none;
  font-size: 20px; font-weight: 600; letter-spacing: -0.01em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-x { font-size: 24px; font-weight: 400; color: var(--orange); transition: transform 0.35s var(--ease); flex-shrink: 0; }
.faq-item[open] .faq-x { transform: rotate(45deg); }
.faq-a { margin: 0; padding: 0 48px 26px 4px; font-size: 16.5px; line-height: 1.6; color: var(--dim); max-width: 680px; }

/* ---------- Quiz CTA ---------- */
.quizcta {
  position: relative; overflow: hidden; border-radius: 28px; border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(250, 204, 21, 0.13), rgba(249, 115, 22, 0.10), rgba(229, 72, 77, 0.10));
  backdrop-filter: blur(18px);
  display: flex; align-items: center; justify-content: space-between; gap: 50px;
  padding: 64px 70px;
}
.quizcta::before { content: ""; position: absolute; top: -120px; right: 240px; width: 400px; height: 400px; background: radial-gradient(closest-side, rgba(250, 204, 21, 0.22), transparent); }
.qc-kicker { font-family: var(--mono); font-size: 13px; letter-spacing: 0.18em; color: var(--orange); }
.quizcta h2 { margin-top: 16px; font-size: clamp(34px, 3.6vw, 46px); line-height: 1.1; }
.qc-d { margin: 18px 0 0; font-size: 17px; color: var(--dim); max-width: 440px; }

/* ---------- Articles ---------- */
.art-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; }
.art-card {
  display: flex; flex-direction: column; border-radius: 22px; overflow: hidden;
  background: var(--glass); border: 1px solid var(--line); backdrop-filter: blur(14px);
  transition: transform 0.4s var(--ease), box-shadow 0.4s, border-color 0.4s; cursor: pointer;
}
.art-card:hover { transform: translateY(-6px); border-color: rgba(249, 115, 22, 0.45); box-shadow: 0 22px 48px rgba(249, 115, 22, 0.12); }
.article-cover { width: 100%; height: 200px; display: block; object-fit: cover; }
.art-meta { display: flex; flex-direction: column; gap: 10px; padding: 22px 24px 26px; }
.art-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.art-tag { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; color: var(--orange); }
.art-time { font-family: var(--mono); font-size: 12px; color: var(--faint); }
.art-t { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.3; }
.art-d { margin: 0; font-size: 15px; line-height: 1.55; color: var(--dim); }
.art-more { margin-top: 6px; font-size: 15px; font-weight: 600; color: var(--red); }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: var(--bg); padding: 96px 0 48px; margin-top: 110px; }
.ft-title { font-size: clamp(40px, 4.5vw, 60px); font-weight: 700; letter-spacing: -0.03em; }
.ft-sub { margin: 18px 0 0; font-size: 18px; color: rgba(251, 248, 243, 0.55); max-width: 480px; }
.ft-links { display: flex; gap: 18px; margin-top: 44px; flex-wrap: wrap; }
.ft-link {
  display: inline-flex; align-items: center; gap: 12px; padding: 18px 30px; border-radius: 16px;
  border: 1px solid rgba(251, 248, 243, 0.16); font-size: 18px; font-weight: 600;
  transition: border-color 0.3s, transform 0.3s var(--ease), background 0.3s;
}
.ft-link:hover { border-color: var(--orange); transform: translateY(-3px); background: rgba(249, 115, 22, 0.08); }
.ft-link .mono { font-size: 13px; color: rgba(251, 248, 243, 0.5); }
.ft-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  margin-top: 80px; padding-top: 28px; border-top: 1px solid rgba(251, 248, 243, 0.12);
  font-family: var(--mono); font-size: 12.5px; color: rgba(251, 248, 243, 0.4);
}

/* ---------- Quiz overlay ---------- */
.quiz {
  position: fixed; inset: 0; z-index: 90; background: var(--bg);
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; transition: opacity 0.45s, visibility 0.45s;
}
.quiz.open { opacity: 1; visibility: visible; }
.q-bg { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.q-blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.45; will-change: transform; transition: transform 1.2s var(--ease); }
.qb1 { width: 620px; height: 620px; background: var(--yellow); top: -12%; left: -6%; }
.qb2 { width: 720px; height: 720px; background: var(--orange); bottom: -24%; right: -12%; opacity: 0.32; }
.qb3 { width: 460px; height: 460px; background: var(--red); top: 28%; left: 56%; opacity: 0.22; }
.q-top { position: relative; z-index: 2; display: flex; align-items: center; gap: 28px; padding: 24px 40px; }
.q-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.q-logo img { width: 34px; height: 34px; display: block; }
.q-progress { flex: 1; height: 4px; border-radius: 4px; background: rgba(31, 20, 13, 0.08); overflow: hidden; }
.q-bar { height: 100%; width: 25%; border-radius: 4px; background: var(--grad); transition: width 0.55s var(--ease); }
.q-close {
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line);
  background: var(--glass); color: var(--ink); font-size: 16px; cursor: pointer;
  transition: border-color 0.3s, transform 0.3s;
}
.q-close:hover { border-color: var(--red); transform: rotate(90deg); }
.q-stage { position: relative; z-index: 2; flex: 1; }
.q-step {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 22px; text-align: center;
  padding: 0 8vw; pointer-events: none;
}
.q-step.active { pointer-events: auto; }
.q-step > * {
  opacity: 0; transform: translateX(110px) scale(0.95); filter: blur(12px);
  transition: opacity 0.75s var(--ease), transform 0.85s var(--ease), filter 0.75s var(--ease);
}
.q-step.prev > * { transform: translateX(-110px) scale(0.95); }
.q-step.active > * { opacity: 1; transform: none; filter: none; }
.q-step > *:nth-child(1) { transition-delay: 0s; }
.q-step > *:nth-child(2) { transition-delay: 0.09s; }
.q-step > *:nth-child(3) { transition-delay: 0.18s; }
.q-step > *:nth-child(4) { transition-delay: 0.27s; }
.q-step:not(.active) > * { transition-delay: 0s; }
.q-kicker { font-family: var(--mono); font-size: 13px; letter-spacing: 0.3em; color: var(--orange); }
.q-q { font-size: clamp(34px, 4vw, 52px); font-weight: 700; letter-spacing: -0.025em; max-width: 760px; text-wrap: balance; }
.q-hint { margin: -8px 0 0; font-size: 16px; color: var(--faint); }
.q-chips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; max-width: 720px; }
.chip {
  padding: 15px 26px; border-radius: 14px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.6); font-family: var(--font); font-size: 17px; color: var(--ink);
  cursor: pointer; transition: transform 0.25s var(--ease), border-color 0.25s, background 0.25s, color 0.25s;
}
.chip:hover { transform: translateY(-3px); border-color: rgba(249, 115, 22, 0.55); }
.chip.sel { background: var(--grad); color: #fff; border-color: transparent; font-weight: 600; box-shadow: 0 10px 28px rgba(249, 115, 22, 0.3); }
.q-input {
  width: min(580px, 84vw); padding: 19px 24px; border-radius: 16px;
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.72);
  font-family: var(--font); font-size: 20px; color: var(--ink); outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.q-input:focus { border-color: var(--orange); box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.14); }
.q-input::placeholder { color: var(--faint); }
.q-area { min-height: 110px; resize: vertical; font-size: 17px; line-height: 1.5; }
.q-label { font-size: 15px; color: var(--dim); margin-top: 6px; }
.q-foot { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 0 40px 42px; }
.q-error { min-height: 20px; font-family: var(--mono); font-size: 13.5px; color: var(--red); }
.q-btns { display: flex; gap: 14px; }
.q-check {
  width: 96px; height: 96px; border-radius: 50%; background: var(--grad); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 42px;
  box-shadow: 0 18px 50px rgba(249, 115, 22, 0.4);
}
.q-note { font-family: var(--mono); font-size: 12.5px; color: var(--faint); }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .prc-grid { grid-template-columns: repeat(2, 1fr); }
  .prc-grid::before, .prc-grid::after { display: none; }
  .quizcta { flex-direction: column; align-items: flex-start; padding: 44px 36px; }
}
@media (max-width: 760px) {
  .nav-link { display: none; }
  .hero h1 { font-size: 44px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .prc-grid { grid-template-columns: 1fr; }
  .sec-head { flex-direction: column; gap: 6px; }
}