/* Koval Oleksandr — Molten forge industrial */

:root {
  --charcoal: #0b0d10;
  --graphite: #1a1e24;
  --steel-dark: #2a3038;
  --steel-mid: #8a929c;
  --silver: #c5ccd4;
  --steel-light: #e8ecf0;
  --molten: #ff6a1a;
  --molten-deep: #e85d04;
  --ember: #ff8a3d;
  --text: #f2f4f6;
  --text-muted: #9aa3ad;
  --line: rgba(197, 204, 212, 0.18);
  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --space: clamp(1rem, 2.5vw, 2rem);
  --max: 1120px;
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--charcoal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--molten);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 1000;
  padding: 0.65rem 1rem;
  background: var(--molten);
  color: var(--charcoal);
  font-weight: 700;
}

.skip-link:focus {
  top: 1rem;
}

/* Atmosphere base */
.site-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 15% -10%, rgba(255, 106, 26, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 20%, rgba(138, 146, 156, 0.08), transparent 50%),
    linear-gradient(165deg, #0b0d10 0%, #12161c 45%, #0b0d10 100%);
}

.site-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px;
}

.metal-sheen {
  background:
    linear-gradient(115deg, rgba(232, 236, 240, 0.06) 0%, transparent 28%, rgba(255, 106, 26, 0.04) 52%, transparent 70%, rgba(197, 204, 212, 0.05) 100%),
    linear-gradient(180deg, var(--graphite), #14181e);
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s;
}

.site-header.is-scrolled {
  background: rgba(11, 13, 16, 0.88);
  border-bottom-color: var(--line);
  backdrop-filter: blur(12px);
}

.header-inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: none !important;
  font-variant: normal;
  font-variant-caps: normal;
  color: var(--steel-light);
}

.brand span {
  font-weight: 800;
}

.brand-tig {
  color: var(--molten);
}

.brand-er {
  color: var(--steel-light);
}

.nav {
  display: none;
  align-items: center;
  gap: 1.75rem;
}

.nav a {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel-mid);
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--steel-light);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  background: rgba(26, 30, 36, 0.7);
  color: var(--steel-light);
  cursor: pointer;
}

.nav-toggle svg {
  width: 1.25rem;
  height: 1.25rem;
}

@media (min-width: 880px) {
  .nav {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-h) 0 auto;
  z-index: 99;
  padding: 1.25rem 1.5rem 1.5rem;
  background: rgba(11, 13, 16, 0.96);
  border-bottom: 1px solid var(--line);
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav a {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel-light);
  padding: 0.35rem 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3rem;
  padding: 0.75rem 1.45rem;
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s, border-color 0.2s, box-shadow 0.25s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--molten) 0%, var(--molten-deep) 100%);
  color: #140a04;
  box-shadow: 0 0 0 0 rgba(255, 106, 26, 0.45);
  animation: ember-pulse 2.8s ease-in-out infinite;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(255, 106, 26, 0.35);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(197, 204, 212, 0.35);
  color: var(--steel-light);
}

.btn-ghost:hover {
  border-color: var(--molten);
  color: var(--ember);
}

.btn-header {
  display: none;
}

@media (min-width: 880px) {
  .btn-header {
    display: inline-flex;
    min-height: 2.5rem;
    padding: 0.55rem 1.1rem;
    font-size: 0.82rem;
  }
}

@keyframes ember-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(255, 106, 26, 0.35);
  }
  50% {
    box-shadow: 0 0 22px 2px rgba(255, 106, 26, 0.4);
  }
}

/* Hero */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  padding: calc(var(--header-h) + 2rem) 0 4rem;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% center;
  transform: scale(1.04);
  will-change: transform;
  animation: hero-ken 18s ease-out forwards;
}

@keyframes hero-ken {
  to {
    transform: scale(1);
  }
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 13, 16, 0.92) 0%, rgba(11, 13, 16, 0.72) 42%, rgba(11, 13, 16, 0.35) 100%),
    linear-gradient(0deg, rgba(11, 13, 16, 0.95) 0%, rgba(11, 13, 16, 0.35) 38%, rgba(11, 13, 16, 0.45) 100%),
    linear-gradient(135deg, transparent 40%, rgba(255, 106, 26, 0.12) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.hero-ember {
  display: block;
  width: min(11rem, 42%);
  height: 2px;
  margin: 0 0 1.25rem;
  background: linear-gradient(90deg, var(--molten), transparent);
  opacity: 0;
  transform: scaleX(0.2);
  transform-origin: left center;
  animation: ember-line 1.4s var(--ease) 0.55s forwards;
  box-shadow: 0 0 24px rgba(255, 106, 26, 0.65);
}

@keyframes ember-line {
  to {
    opacity: 1;
    transform: scaleX(1);
  }
}

.hero-brand {
  margin: 0 0 clamp(1.5rem, 3vw, 2.25rem);
  font-family: var(--font-body);
  font-size: clamp(3.2rem, 11vw, 7.5rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.02em;
  text-transform: none !important;
  font-variant: normal;
  font-variant-caps: normal;
  color: var(--steel-light);
  white-space: nowrap;
  opacity: 0;
  transform: translateY(28px);
  animation: rise-in 1s var(--ease) 0.15s forwards;
}

.hero-brand .brand-tig {
  font-weight: 800;
  color: var(--molten);
  letter-spacing: -0.03em;
}

.hero-brand .brand-er {
  font-weight: 800;
  color: var(--steel-light);
  letter-spacing: -0.03em;
}

.hero-title {
  margin: 0 0 0.85rem;
  max-width: 24ch;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.2vw, 2.15rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-wrap: balance;
  color: var(--silver);
  opacity: 0;
  transform: translateY(22px);
  animation: rise-in 1s var(--ease) 0.35s forwards;
}

.hero-lead {
  margin: 0 0 1.75rem;
  max-width: 36ch;
  color: var(--text-muted);
  font-size: 1.05rem;
  opacity: 0;
  transform: translateY(18px);
  animation: rise-in 1s var(--ease) 0.5s forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  opacity: 0;
  transform: translateY(18px);
  animation: rise-in 1s var(--ease) 0.65s forwards;
}

@keyframes rise-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Sections shared */
.section {
  padding: clamp(4rem, 9vw, 7rem) 0;
  position: relative;
}

.section-inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.section-label {
  display: inline-block;
  margin-bottom: 0.85rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--molten);
}

.section-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.section-lead {
  margin: 0 0 2.5rem;
  max-width: 42rem;
  color: var(--text-muted);
}

.section-head {
  margin-bottom: 2.5rem;
  max-width: 40rem;
}

/* Services */
.services {
  border-top: 1px solid var(--line);
}

.service-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.service-item {
  display: grid;
  gap: 0.75rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: auto 1fr;
  align-items: start;
}

@media (min-width: 760px) {
  .service-grid {
    grid-template-columns: 1fr 1fr;
    column-gap: 3rem;
  }

  .service-item:nth-child(odd) {
    padding-right: 1rem;
  }
}

.service-index {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--molten);
  padding-top: 0.2rem;
}

.service-item h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.service-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

/* Advantages */
.advantages {
  background:
    linear-gradient(180deg, transparent, rgba(26, 30, 36, 0.65), transparent);
}

.advantage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.advantage-item {
  display: grid;
  gap: 0.75rem 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.advantage-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 720px) {
  .advantage-item {
    grid-template-columns: 3.5rem 11rem 1fr;
    align-items: baseline;
  }
}

.advantage-num {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--molten);
}

.advantage-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.advantage-item p {
  margin: 0;
  color: var(--text-muted);
}

/* Works gallery */
.works-strip {
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 700px) {
  .works-strip {
    grid-template-columns: 1.4fr 1fr 1fr;
    grid-template-rows: repeat(2, minmax(260px, 1fr));
    grid-template-areas:
      "spark spark seam"
      "workshop gate gate";
    gap: 0.85rem;
    min-height: 560px;
  }

  .works-item:nth-child(1) {
    grid-area: spark;
  }

  .works-item:nth-child(2) {
    grid-area: seam;
  }

  .works-item:nth-child(3) {
    grid-area: gate;
  }

  .works-item:nth-child(4) {
    grid-area: workshop;
  }
}

.works-item {
  position: relative;
  overflow: hidden;
  min-height: 220px;
  background: var(--graphite);
}

.works-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.works-item:hover img {
  transform: scale(1.04);
}

.works-item figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.1rem 1.15rem;
  background: linear-gradient(transparent, rgba(11, 13, 16, 0.88));
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
}

/* Process */
.process-steps {
  display: grid;
  gap: 0;
  counter-reset: step;
}

@media (min-width: 860px) {
  .process-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
}

.process-step {
  position: relative;
  padding: 1.5rem 0 1.75rem;
  border-top: 1px solid var(--line);
  counter-increment: step;
}

@media (min-width: 860px) {
  .process-step {
    padding: 1.75rem 1.4rem 0 1.4rem;
    border-top: none;
    border-left: 1px solid var(--line);
  }

  .process-step:first-child {
    border-left: none;
    padding-left: 0;
  }
}

.process-step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  color: var(--molten);
}

.process-step h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.process-step p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

/* Form */
.order {
  background: linear-gradient(180deg, rgba(26, 30, 36, 0.4), rgba(11, 13, 16, 0.2));
}

.order-layout {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 900px) {
  .order-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 3.5rem;
    align-items: start;
  }
}

.order-aside p {
  color: var(--text-muted);
}

.order-contact {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.order-contact a {
  color: var(--steel-light);
  border-bottom: 1px solid rgba(255, 106, 26, 0.55);
}

.order-form,
.form-success {
  padding: 1.75rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(232, 236, 240, 0.05), transparent 40%),
    linear-gradient(180deg, #171b21, #12161c);
}

.form-grid {
  display: grid;
  gap: 1.1rem;
}

@media (min-width: 640px) {
  .form-grid.two {
    grid-template-columns: 1fr 1fr;
  }
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.85rem 0.95rem;
  border: 1px solid rgba(197, 204, 212, 0.22);
  background: rgba(11, 13, 16, 0.65);
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field textarea {
  min-height: 130px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--molten);
  box-shadow: 0 0 0 3px rgba(255, 106, 26, 0.18);
  outline: none;
}

.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--steel-mid) 50%),
    linear-gradient(135deg, var(--steel-mid) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% - 3px), calc(100% - 12px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.radio {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text-muted);
  cursor: pointer;
}

.radio input {
  accent-color: var(--molten);
  width: 1.05rem;
  height: 1.05rem;
}

.form-actions {
  margin-top: 0.35rem;
}

.form-note {
  margin: 0.85rem 0 0;
  font-size: 0.88rem;
  color: var(--steel-mid);
}

.form-success {
  display: none;
  text-align: left;
  padding: 3rem 1.75rem;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #8f98a3;
  opacity: 1;
}

.form-success.is-visible {
  display: block;
}

.order-form.is-hidden {
  display: none;
}

.form-success h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.form-success p {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
}

.success-mark {
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 0 1.25rem;
  border: 1px solid var(--molten);
  display: grid;
  place-items: center;
  color: var(--molten);
  font-size: 1.5rem;
}

body.nav-open {
  overflow: hidden;
}

/* FAQ */
.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.faq-icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  position: relative;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--molten);
  transition: transform 0.25s var(--ease);
}

.faq-icon::before {
  inset: 50% 0 auto;
  height: 2px;
  transform: translateY(-50%);
}

.faq-icon::after {
  inset: 0 auto 0 50%;
  width: 2px;
  transform: translateX(-50%);
}

.faq-item.is-open .faq-icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.faq-panel {
  display: grid;
  grid-template-rows: 0fr;
  visibility: hidden;
  transition: grid-template-rows 0.35s var(--ease), visibility 0.35s var(--ease);
}

.faq-item.is-open .faq-panel {
  grid-template-rows: 1fr;
  visibility: visible;
}

.faq-panel-inner {
  overflow: hidden;
}

.faq-panel p {
  margin: 0 0 1.25rem;
  max-width: 58ch;
  color: var(--text-muted);
}

/* Final CTA */
.final-cta {
  padding: clamp(4.5rem, 10vw, 7.5rem) 0;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 80% at 80% 50%, rgba(255, 106, 26, 0.16), transparent 60%),
    linear-gradient(90deg, #0b0d10 20%, rgba(11, 13, 16, 0.55) 100%);
  z-index: 0;
}

.final-cta-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.35;
}

.final-cta-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.final-cta .section-inner {
  position: relative;
  z-index: 1;
}

.final-cta .section-title {
  margin-bottom: 1rem;
  max-width: 40rem;
}

.final-cta p {
  margin: 0 0 1.75rem;
  max-width: 40rem;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  padding: 2.75rem 0 2rem;
}

.footer-inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 720px) {
  .footer-inner {
    grid-template-columns: 1.2fr 1fr 1fr;
    align-items: start;
  }
}

.footer-brand {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: none !important;
  font-variant: normal;
  font-variant-caps: normal;
  color: var(--steel-light);
}

.footer-brand span {
  font-weight: 800;
}

.site-footer p,
.site-footer a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.site-footer a:hover {
  color: var(--ember);
}

.footer-label {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

.footer-copy {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  color: var(--steel-mid);
  font-size: 0.85rem;
}

/* Mobile layout */
@media (max-width: 879px) {
  :root {
    --header-h: 3.75rem;
  }

  body {
    font-size: 1rem;
  }

  .header-inner {
    width: min(100% - 1.25rem, var(--max));
  }

  .site-header {
    height: calc(var(--header-h) + env(safe-area-inset-top));
    padding-top: env(safe-area-inset-top);
  }

  .brand {
    font-size: 0.98rem;
    max-width: calc(100% - 4rem);
  }

  .mobile-nav {
    inset: calc(var(--header-h) + env(safe-area-inset-top)) 0 0;
    height: calc(100dvh - var(--header-h) - env(safe-area-inset-top));
    padding: 1.5rem 1.25rem calc(1.5rem + env(safe-area-inset-bottom));
    gap: 0.35rem;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: rgba(11, 13, 16, 0.98);
  }

  .mobile-nav a {
    padding: 0.95rem 0;
    border-bottom: 1px solid var(--line);
    font-size: 1.15rem;
  }

  .mobile-nav a:last-child {
    border-bottom: 0;
  }

  .hero {
    min-height: 100svh;
    min-height: 100dvh;
    padding: calc(var(--header-h) + env(safe-area-inset-top) + 1.5rem) 0 calc(2.5rem + env(safe-area-inset-bottom));
    align-items: end;
  }

  .hero-media img {
    object-position: 70% center;
  }

  .hero-media::after {
    background:
      linear-gradient(180deg, rgba(11, 13, 16, 0.55) 0%, rgba(11, 13, 16, 0.35) 28%, rgba(11, 13, 16, 0.92) 100%),
      linear-gradient(90deg, rgba(11, 13, 16, 0.82) 0%, rgba(11, 13, 16, 0.45) 55%, rgba(11, 13, 16, 0.25) 100%),
      linear-gradient(135deg, transparent 40%, rgba(255, 106, 26, 0.12) 100%);
  }

  .hero-inner {
    width: min(100% - 1.25rem, var(--max));
  }

  .hero-brand {
    font-size: clamp(2.35rem, 11.5vw, 3.75rem);
    margin-bottom: 1.15rem;
  }

  .hero-title {
    font-size: clamp(1.35rem, 5.5vw, 1.85rem);
    max-width: 18ch;
  }

  .hero-lead {
    max-width: 32ch;
    font-size: 0.98rem;
    margin-bottom: 1.5rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .hero-actions .btn {
    width: 100%;
    min-width: 0;
  }

  .section {
    padding: clamp(3.25rem, 12vw, 4.5rem) 0;
  }

  .section-inner {
    width: min(100% - 1.25rem, var(--max));
  }

  .section-head {
    margin-bottom: 1.75rem;
  }

  .section-lead {
    margin-bottom: 0;
    font-size: 0.98rem;
  }

  .section-title {
    font-size: clamp(1.75rem, 8vw, 2.35rem);
  }

  .service-item {
    padding: 1.25rem 0;
    gap: 0.85rem;
  }

  .service-item h3 {
    font-size: 1.15rem;
  }

  .advantage-item {
    grid-template-columns: 2.5rem 1fr;
    gap: 0.35rem 0.85rem;
    padding: 1.25rem 0;
  }

  .advantage-item h3 {
    grid-column: 2;
    font-size: 1.08rem;
  }

  .advantage-item p {
    grid-column: 1 / -1;
    font-size: 0.95rem;
  }

  .works-strip {
    gap: 0.65rem;
  }

  .works-item {
    min-height: 0;
    aspect-ratio: 4 / 3;
  }

  .process-step {
    padding: 1.25rem 0 1.35rem;
  }

  .order-form,
  .form-success {
    padding: 1.25rem;
  }

  .form-success {
    padding: 2rem 1.25rem;
  }

  .form-success h3 {
    font-size: 1.55rem;
  }

  .field input,
  .field select,
  .field textarea {
    min-height: 3rem;
    font-size: 1rem;
  }

  .faq-trigger {
    font-size: 1rem;
    padding: 1.1rem 0;
    gap: 0.75rem;
    line-height: 1.3;
  }

  .final-cta {
    padding: clamp(3.5rem, 14vw, 5rem) 0;
  }

  .final-cta .btn {
    width: 100%;
  }

  .footer-inner,
  .footer-copy {
    width: min(100% - 1.25rem, var(--max));
  }

  .site-footer {
    padding: 2.25rem 0 calc(1.75rem + env(safe-area-inset-bottom));
  }
}

@media (max-width: 380px) {
  .hero-brand {
    font-size: clamp(2.25rem, 13vw, 3rem);
  }

  .brand {
    font-size: 0.9rem;
  }

  .btn {
    letter-spacing: 0.08em;
    padding-inline: 1.15rem;
  }
}

/* Landscape phones */
@media (max-height: 480px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: calc(var(--header-h) + 1rem) 0 2rem;
  }

  .hero-brand {
    font-size: clamp(2rem, 8vw, 2.8rem);
    margin-bottom: 0.75rem;
  }

  .hero-title {
    font-size: 1.2rem;
  }

  .hero-lead {
    margin-bottom: 1rem;
  }

  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .hero-actions .btn {
    width: auto;
    flex: 1 1 auto;
  }

  .mobile-nav {
    height: calc(100dvh - var(--header-h));
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }

  .hero-brand,
  .hero-title,
  .hero-lead,
  .hero-actions,
  .hero-ember,
  .advantage-item {
    opacity: 1;
    transform: none;
  }
}