/* =================================================================
   AMG HYDROVAC — Premium Industrial Design System
   Self-contained. No build step. Mobile-first.
   ================================================================= */

/* ---------- Design tokens ---------- */
:root {
  /* Surfaces */
  --ink:        #090B10;
  --surface:    #0E1116;
  --surface-2:  #141922;
  --surface-3:  #1C2530;
  --surface-4:  #232E3B;

  /* Lines */
  --line:        rgba(230, 232, 235, 0.08);
  --line-strong: rgba(230, 232, 235, 0.16);

  /* Text */
  --text:    #E6E8EB;
  --muted:   #9AA6B2;
  --faint:   #6B7682;

  /* Accent — safety amber */
  --amber:     #F5A623;
  --amber-600: #E08A00;
  --amber-700: #B96F00;
  --amber-tint: rgba(245, 166, 35, 0.12);
  --amber-line: rgba(245, 166, 35, 0.32);

  /* States */
  --success: #4ECB71;
  --error:   #FF6B5E;

  /* Type */
  --font-display: "Anton", "Arial Narrow", "Helvetica Neue", Impact, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Fluid type scale */
  --fs-eyebrow: 0.78rem;
  --fs-body:    clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  --fs-lead:    clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem);
  --fs-h4:      clamp(1.15rem, 1.05rem + 0.5vw, 1.35rem);
  --fs-h3:      clamp(1.5rem, 1.2rem + 1.5vw, 2.1rem);
  --fs-h2:      clamp(2.1rem, 1.5rem + 3vw, 3.6rem);
  --fs-h1:      clamp(2.9rem, 1.6rem + 6vw, 6.5rem);
  --fs-mega:    clamp(4rem, 2rem + 11vw, 12rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.875rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --section-y: clamp(4.5rem, 3rem + 8vw, 9rem);

  /* Geometry */
  --radius:    4px;
  --radius-lg: 8px;
  --container: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 18px 40px -20px rgba(0,0,0,0.7);
  --shadow-amber: 0 10px 30px -10px rgba(245, 166, 35, 0.35);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.6s;

  --header-h: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
[id] { scroll-margin-top: 90px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
ul { list-style: none; padding: 0; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 2px; }

/* ---------- Typography ---------- */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 0.96;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); font-weight: 600; line-height: 1.2; }
p { color: var(--muted); }
strong { color: var(--text); font-weight: 600; }
.accent { color: var(--amber); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
}
.eyebrow::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--amber);
  display: inline-block;
}
.eyebrow.is-centered::after {
  content: "";
  width: 26px; height: 2px;
  background: var(--amber);
  display: inline-block;
}

.lead { font-size: var(--fs-lead); color: var(--muted); line-height: 1.5; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: 900px; }
.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: clamp(3rem, 2rem + 5vw, 5rem); }
.bg-ink { background: var(--ink); }
.bg-surface-2 { background: var(--surface-2); }

.section-head { max-width: 760px; margin-bottom: var(--space-xl); }
.section-head.is-centered { margin-inline: auto; text-align: center; }
.section-head h2 { margin-top: 1rem; }
.section-head p { margin-top: 1.25rem; }

.grid { display: grid; gap: var(--space-md); }
.split {
  display: grid; gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: 1fr;
  align-items: center;
}
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; } }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--amber);
  --btn-fg: #11140C;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 1.6rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform 0.3s var(--ease); }
.btn:hover { background: var(--amber-600); transform: translateY(-2px); box-shadow: var(--shadow-amber); }
.btn:hover svg { transform: translateX(4px); }
.btn:active { transform: translateY(0); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  border-color: var(--line-strong);
}
.btn--ghost:hover { background: rgba(255,255,255,0.04); border-color: var(--amber); box-shadow: none; color: var(--text); }
.btn--lg { padding: 1.15rem 2rem; font-size: 1rem; }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; color: var(--amber);
  font-size: 0.92rem; letter-spacing: 0.03em; text-transform: uppercase;
}
.link-arrow svg { width: 16px; height: 16px; transition: transform 0.3s var(--ease); }
.link-arrow:hover svg { transform: translateX(5px); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), height 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: rgba(10, 13, 18, 0.82);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
  height: 64px;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 1.5rem; }

.brand { display: flex; align-items: center; gap: 0.7rem; flex-shrink: 0; }
.brand-mark {
  width: 38px; height: 38px; flex-shrink: 0;
  display: grid; place-items: center;
  background: var(--amber); color: #11140C;
  font-family: var(--font-display); font-size: 1.15rem;
  border-radius: 3px;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 82% 100%, 0 100%);
}
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font-family: var(--font-display); font-size: 1.35rem; letter-spacing: 0.02em; }
.brand-sub { font-size: 0.6rem; letter-spacing: 0.32em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }

.nav { display: none; }
@media (min-width: 1024px) {
  .nav { display: flex; align-items: center; gap: 0.35rem; }
}
.nav a {
  position: relative;
  padding: 0.5rem 0.9rem;
  font-size: 0.88rem; font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
  transition: color 0.25s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0.9rem; right: 0.9rem; bottom: 0.15rem;
  height: 2px; background: var(--amber);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav a:hover { color: var(--text); }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--text); }

.header-cta { display: none; align-items: center; gap: 1rem; flex-shrink: 0; }
@media (min-width: 1024px) { .header-cta { display: flex; } }
.header-phone { display: flex; flex-direction: column; line-height: 1.1; text-align: right; }
.header-phone span { font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--faint); }
.header-phone a { font-family: var(--font-display); font-size: 1.1rem; color: var(--text); }
.header-phone a:hover { color: var(--amber); }

/* Mobile menu button */
.menu-toggle {
  display: inline-flex; flex-direction: column; gap: 5px;
  width: 46px; height: 46px; align-items: center; justify-content: center;
  background: var(--surface-3); border: 1px solid var(--line-strong);
  border-radius: var(--radius); cursor: pointer;
}
@media (min-width: 1024px) { .menu-toggle { display: none; } }
.menu-toggle span { width: 20px; height: 2px; background: var(--text); transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
body.menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
body.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu overlay */
.mobile-menu {
  position: fixed; inset: 0; z-index: 90;
  background: var(--ink);
  display: flex; flex-direction: column;
  padding: calc(var(--header-h) + 1rem) var(--gutter) 2rem;
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform 0.5s var(--ease), visibility 0.5s;
}
body.menu-open .mobile-menu { transform: translateY(0); visibility: visible; }
.mobile-menu nav { display: flex; flex-direction: column; margin-top: auto; }
.mobile-menu nav a {
  font-family: var(--font-display); font-size: clamp(2rem, 9vw, 3rem);
  text-transform: uppercase; padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  display: flex; align-items: baseline; gap: 1rem;
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), color 0.25s;
}
.mobile-menu nav a .idx { font-family: var(--font-body); font-size: 0.8rem; color: var(--amber); font-weight: 600; }
.mobile-menu nav a:hover { color: var(--amber); }
body.menu-open .mobile-menu nav a { opacity: 1; transform: translateY(0); }
body.menu-open .mobile-menu nav a:nth-child(1) { transition-delay: 0.12s; }
body.menu-open .mobile-menu nav a:nth-child(2) { transition-delay: 0.18s; }
body.menu-open .mobile-menu nav a:nth-child(3) { transition-delay: 0.24s; }
body.menu-open .mobile-menu nav a:nth-child(4) { transition-delay: 0.30s; }
body.menu-open .mobile-menu nav a:nth-child(5) { transition-delay: 0.36s; }
.mobile-menu-footer { margin-top: 2rem; display: flex; flex-direction: column; gap: 1rem; }
.mobile-menu-footer .btn { width: 100%; }
.mobile-menu-phone { font-family: var(--font-display); font-size: 1.6rem; color: var(--text); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
  background: var(--ink);
  isolation: isolate;
}
.hero__bg { position: absolute; inset: 0; z-index: -3; }
.hero__bg::before {
  content: ""; position: absolute; inset: -20%;
  background:
    radial-gradient(60% 50% at 75% 25%, rgba(245,166,35,0.16), transparent 60%),
    radial-gradient(70% 60% at 15% 90%, rgba(40,80,120,0.18), transparent 60%),
    linear-gradient(180deg, #0a0d12 0%, #11161f 60%, #0a0d12 100%);
}
.hero__grid {
  position: absolute; inset: 0; z-index: -2; opacity: 0.5;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(110% 100% at 50% 0%, #000 30%, transparent 75%);
  mask-image: radial-gradient(110% 100% at 50% 0%, #000 30%, transparent 75%);
}
.hero__canvas { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; opacity: 0.7; pointer-events: none; }
.hero__noise { position: absolute; inset: 0; z-index: -1; opacity: 0.04; pointer-events: none;
  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='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

.hero__inner { position: relative; padding-block: 4rem; max-width: 920px; }
.hero h1 { margin: 1.25rem 0; }
.hero h1 .line { display: block; overflow: hidden; }
.hero h1 .line > span { display: block; will-change: transform; }
.hero__sub { max-width: 560px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.25rem; }
.hero__stats {
  display: flex; flex-wrap: wrap; gap: clamp(1.5rem, 5vw, 3.5rem);
  margin-top: 3.5rem; padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.hero__stat .num { font-family: var(--font-display); font-size: clamp(1.8rem, 1.2rem + 2.5vw, 2.8rem); color: var(--text); line-height: 1; }
.hero__stat .lbl { font-size: 0.8rem; color: var(--muted); margin-top: 0.4rem; letter-spacing: 0.02em; }
.hero__stat .num .accent { color: var(--amber); }

.scroll-cue {
  position: absolute; left: 50%; bottom: 1.5rem; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  font-size: 0.65rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--faint);
  z-index: 2;
}
.scroll-cue .bar { width: 1px; height: 40px; background: linear-gradient(var(--amber), transparent); position: relative; overflow: hidden; }
.scroll-cue .bar::after { content: ""; position: absolute; top: -50%; left: 0; width: 100%; height: 50%; background: var(--amber); animation: scrollcue 2s var(--ease) infinite; }
@keyframes scrollcue { 0% { top: -50%; } 100% { top: 100%; } }
@media (max-width: 700px) { .scroll-cue { display: none; } }

/* ---------- Marquee / trust strip ---------- */
.trust {
  border-block: 1px solid var(--line);
  background: var(--ink);
  padding-block: 1.75rem;
  overflow: hidden;
}
.trust__label { text-align: center; font-size: 0.72rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--faint); margin-bottom: 1.25rem; }
.marquee { display: flex; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee__track { display: flex; gap: 3.5rem; padding-right: 3.5rem; animation: marquee 32s linear infinite; flex-shrink: 0; min-width: 100%; justify-content: space-around; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item { display: flex; align-items: center; gap: 0.7rem; color: var(--muted); font-weight: 600; letter-spacing: 0.06em; font-size: 0.95rem; white-space: nowrap; text-transform: uppercase; }
.marquee__item svg { width: 22px; height: 22px; color: var(--amber); flex-shrink: 0; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; flex-wrap: wrap; } }

/* ---------- Service cards ---------- */
.cards { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .cards--3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  position: relative;
  padding: 2rem 1.75rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--amber); transform: scaleX(0); transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: var(--line-strong); background: var(--surface-3); }
.card:hover::before { transform: scaleX(1); }
.card__icon {
  width: 52px; height: 52px; display: grid; place-items: center;
  background: var(--amber-tint); border: 1px solid var(--amber-line);
  border-radius: var(--radius); margin-bottom: 1.5rem; color: var(--amber);
  transition: background 0.4s var(--ease);
}
.card__icon svg { width: 26px; height: 26px; }
.card:hover .card__icon { background: var(--amber); color: #11140C; }
.card h4 { margin-bottom: 0.6rem; }
.card p { font-size: 0.96rem; }
.card__link { margin-top: 1.25rem; display: inline-flex; }
.card__num { position: absolute; top: 1.25rem; right: 1.5rem; font-family: var(--font-display); font-size: 1.1rem; color: var(--faint); }

/* ---------- Process steps ---------- */
.steps { display: grid; gap: 1.5rem; grid-template-columns: 1fr; counter-reset: step; }
@media (min-width: 700px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step { position: relative; padding-top: 2.5rem; }
.step__num {
  font-family: var(--font-display); font-size: 1rem;
  width: 48px; height: 48px; display: grid; place-items: center;
  border: 1px solid var(--amber-line); color: var(--amber);
  border-radius: 50%; margin-bottom: 1.25rem; background: var(--surface);
}
.step::before {
  content: ""; position: absolute; top: 0; left: 0; width: 60%; height: 1px;
  background: linear-gradient(90deg, var(--amber), transparent);
}
.step h4 { margin-bottom: 0.5rem; }
.step p { font-size: 0.94rem; }

/* ---------- Feature / split media ---------- */
.media-frame {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line-strong);
  aspect-ratio: 4 / 3.4;
  background: linear-gradient(145deg, var(--surface-3), var(--surface));
}
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame__label {
  position: absolute; left: 1rem; bottom: 1rem; z-index: 3;
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.5rem 0.85rem; background: rgba(9,11,16,0.7);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}
.media-frame__label::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 10px var(--amber); }
/* placeholder visual: stylized excavation graphic */
.media-frame .ph {
  position: absolute; inset: 0;
  background:
    radial-gradient(80% 80% at 70% 20%, rgba(245,166,35,0.14), transparent 55%),
    repeating-linear-gradient(135deg, rgba(255,255,255,0.025) 0 2px, transparent 2px 22px),
    linear-gradient(160deg, #1b232e, #0c1015);
}
.media-frame .ph svg { position: absolute; inset: 0; margin: auto; width: 46%; max-width: 240px; color: rgba(245,166,35,0.5); opacity: 0.85; }

.feature-list { display: grid; gap: 1rem; margin-top: 1.75rem; }
.feature-list li { display: flex; gap: 0.9rem; align-items: flex-start; }
.feature-list .tick {
  flex-shrink: 0; width: 24px; height: 24px; margin-top: 2px;
  display: grid; place-items: center; border-radius: 50%;
  background: var(--amber-tint); color: var(--amber); border: 1px solid var(--amber-line);
}
.feature-list .tick svg { width: 13px; height: 13px; }
.feature-list span.txt { color: var(--muted); }
.feature-list span.txt strong { display: block; color: var(--text); font-weight: 600; margin-bottom: 1px; }

/* ---------- Stat band ---------- */
.statband { display: grid; gap: 1.5rem; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 800px) { .statband { grid-template-columns: repeat(4, 1fr); } }
.statband__item { padding: 1.5rem 0; border-top: 2px solid var(--amber); }
.statband__num { font-family: var(--font-display); font-size: clamp(2.4rem, 1.5rem + 4vw, 4rem); line-height: 0.9; color: var(--text); }
.statband__num .suffix { color: var(--amber); }
.statband__lbl { color: var(--muted); margin-top: 0.6rem; font-size: 0.92rem; }

/* ---------- Projects ---------- */
.project-grid { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 680px) { .project-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .project-grid--3 { grid-template-columns: repeat(3, 1fr); } }
.project {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); aspect-ratio: 4 / 3.2;
  display: flex; flex-direction: column; justify-content: flex-end;
  isolation: isolate;
}
.project .ph { position: absolute; inset: 0; z-index: -2; transition: transform 0.7s var(--ease); }
.project::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, transparent 30%, rgba(9,11,16,0.92)); }
.project:hover .ph { transform: scale(1.07); }
.project__body { padding: 1.5rem; }
.project__tag { display: inline-block; font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--amber); margin-bottom: 0.6rem; font-weight: 600; }
.project h4 { font-size: 1.18rem; }
.project__meta { color: var(--muted); font-size: 0.86rem; margin-top: 0.4rem; }
.project .ph-a { background: linear-gradient(150deg, #233042, #0d1117); }
.project .ph-b { background: linear-gradient(150deg, #2a2418, #0d1117); }
.project .ph-c { background: linear-gradient(150deg, #1d2c2a, #0d1117); }
.project .ph-d { background: linear-gradient(150deg, #2b2230, #0d1117); }
.project .ph::before { content: ""; position: absolute; inset: 0; background-image: repeating-linear-gradient(135deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 20px); }

/* ---------- Testimonials ---------- */
.quotes { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 860px) { .quotes { grid-template-columns: repeat(3, 1fr); } }
.quote {
  padding: 2rem 1.75rem; background: var(--surface-2);
  border: 1px solid var(--line); border-radius: var(--radius);
  display: flex; flex-direction: column;
}
.quote__mark { font-family: var(--font-display); font-size: 3rem; color: var(--amber); line-height: 0.6; height: 1.6rem; }
.quote p { color: var(--text); font-size: 1rem; margin-bottom: 1.5rem; }
.quote__who { margin-top: auto; display: flex; align-items: center; gap: 0.85rem; }
.quote__avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--surface-4); display: grid; place-items: center; font-family: var(--font-display); color: var(--amber); border: 1px solid var(--line-strong); }
.quote__name { font-weight: 600; color: var(--text); font-size: 0.92rem; }
.quote__role { font-size: 0.8rem; color: var(--muted); }
.stars { display: flex; gap: 2px; color: var(--amber); margin-bottom: 1rem; }
.stars svg { width: 16px; height: 16px; }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--ink); isolation: isolate; }
.cta-band__bg { position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 120% at 85% 50%, rgba(245,166,35,0.18), transparent 55%),
    linear-gradient(120deg, #11161f, #0a0d12);
}
.cta-band__bg::after { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(80% 100% at 80% 50%, #000, transparent 70%);
  mask-image: radial-gradient(80% 100% at 80% 50%, #000, transparent 70%); }
.cta-band .inner { display: grid; gap: 2rem; align-items: center; grid-template-columns: 1fr; }
@media (min-width: 880px) { .cta-band .inner { grid-template-columns: 1.4fr 1fr; } }
.cta-band h2 { margin-bottom: 1rem; }
.cta-band .actions { display: flex; flex-wrap: wrap; gap: 1rem; }
@media (min-width: 880px) { .cta-band .actions { justify-content: flex-end; } }

/* ---------- Page hero (interior) ---------- */
.page-hero {
  position: relative; padding-top: calc(var(--header-h) + 4rem);
  padding-bottom: 3.5rem; overflow: hidden; background: var(--ink); isolation: isolate;
}
.page-hero__bg { position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(50% 70% at 80% 0%, rgba(245,166,35,0.13), transparent 60%),
    linear-gradient(180deg, #0a0d12, #11161f);
}
.page-hero__bg::after { content: ""; position: absolute; inset: 0; opacity: 0.5;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(100% 100% at 50% 0%, #000 30%, transparent 78%);
  mask-image: radial-gradient(100% 100% at 50% 0%, #000 30%, transparent 78%); }
.breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: var(--muted); margin-bottom: 1.5rem; }
.breadcrumb a:hover { color: var(--amber); }
.breadcrumb span { color: var(--faint); }
.page-hero h1 { font-size: clamp(2.6rem, 1.6rem + 5vw, 5.5rem); margin-bottom: 1.25rem; }
.page-hero p { max-width: 620px; }

/* ---------- Service detail rows ---------- */
.svc-row { display: grid; gap: clamp(1.5rem, 4vw, 4rem); grid-template-columns: 1fr; align-items: center; }
@media (min-width: 900px) { .svc-row { grid-template-columns: 1fr 1fr; } .svc-row.is-reverse .svc-row__media { order: 2; } }
.svc-row + .svc-row { margin-top: clamp(3rem, 5vw, 5.5rem); padding-top: clamp(3rem, 5vw, 5.5rem); border-top: 1px solid var(--line); }
.svc-row__num { font-family: var(--font-display); font-size: 1rem; color: var(--amber); letter-spacing: 0.1em; margin-bottom: 1rem; }

/* ---------- Accordion (FAQ) ---------- */
.accordion { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 1.4rem 0; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  font-weight: 600; font-size: 1.08rem; color: var(--text);
}
.acc-q .ico { flex-shrink: 0; width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; transition: transform 0.4s var(--ease), background 0.3s, color 0.3s; }
.acc-q[aria-expanded="true"] .ico { transform: rotate(45deg); background: var(--amber); color: #11140C; border-color: var(--amber); }
.acc-a { max-height: 0; overflow: hidden; transition: max-height 0.45s var(--ease); }
.acc-a p { padding-bottom: 1.4rem; max-width: 70ch; }

/* ---------- Contact / Form ---------- */
.contact-grid { display: grid; gap: clamp(2rem, 5vw, 4rem); grid-template-columns: 1fr; }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 1.1fr 0.9fr; } }
.form-card { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(1.5rem, 4vw, 2.5rem); }
.field { margin-bottom: 1.25rem; }
.field label { display: block; font-size: 0.82rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem; }
.field label .req { color: var(--amber); }
.input, .textarea, .select {
  width: 100%; padding: 0.85rem 1rem; background: var(--surface);
  border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--text);
  transition: border-color 0.25s, box-shadow 0.25s; font-size: 0.98rem;
}
.input:focus, .textarea:focus, .select:focus { outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px var(--amber-tint); }
.textarea { resize: vertical; min-height: 130px; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%239AA6B2' stroke-width='2'%3E%3Cpath d='M3 5l4 4 4-4'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem; }
.field-row { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 560px) { .field-row { grid-template-columns: 1fr 1fr; } }
.field .err { display: none; color: var(--error); font-size: 0.8rem; margin-top: 0.4rem; }
.field.invalid .input, .field.invalid .textarea, .field.invalid .select { border-color: var(--error); }
.field.invalid .err { display: block; }
.form-note { font-size: 0.82rem; color: var(--faint); margin-top: 0.5rem; }
.form-error { display: none; color: var(--error); font-size: 0.9rem; margin-top: 0.85rem; padding: 0.75rem 1rem; border: 1px solid var(--error); border-radius: var(--radius); background: rgba(255,107,94,0.08); }
.form-error.show { display: block; }
.form-success {
  display: none; text-align: center; padding: 2.5rem 1rem;
}
.form-success.show { display: block; }
.form-success .ic { width: 64px; height: 64px; margin: 0 auto 1.25rem; display: grid; place-items: center; border-radius: 50%; background: var(--amber-tint); border: 1px solid var(--amber-line); color: var(--amber); }
.form-success h3 { margin-bottom: 0.75rem; }

.info-block { display: flex; gap: 1rem; padding: 1.4rem 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.info-block:first-child { padding-top: 0; }
.info-block__ic { flex-shrink: 0; width: 44px; height: 44px; display: grid; place-items: center; background: var(--surface-3); border: 1px solid var(--line); border-radius: var(--radius); color: var(--amber); }
.info-block__ic svg { width: 20px; height: 20px; }
.info-block h4 { font-size: 1rem; margin-bottom: 0.2rem; }
.info-block a { color: var(--muted); }
.info-block a:hover { color: var(--amber); }
.info-block .big { font-family: var(--font-display); font-size: 1.5rem; color: var(--text); }
.info-block .big:hover { color: var(--amber); }

.emergency {
  margin-top: 2rem; padding: 1.5rem; border-radius: var(--radius);
  border: 1px solid var(--amber-line); background: var(--amber-tint);
  display: flex; gap: 1rem; align-items: center;
}
.emergency svg { width: 32px; height: 32px; color: var(--amber); flex-shrink: 0; }
.emergency strong { color: var(--text); }
.emergency p { color: var(--muted); font-size: 0.9rem; margin-top: 0.15rem; }

/* ---------- Region chips ---------- */
.regions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.75rem; }
.region-chip {
  padding: 0.6rem 1.1rem; border: 1px solid var(--line-strong); border-radius: 100px;
  font-size: 0.9rem; color: var(--muted); transition: all 0.3s var(--ease);
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.region-chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--amber); }
.region-chip:hover { border-color: var(--amber); color: var(--text); transform: translateY(-2px); }

/* ---------- Value / about list ---------- */
.values { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .values { grid-template-columns: repeat(2, 1fr); } }
.value { padding: 1.75rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-2); }
.value__ic { color: var(--amber); margin-bottom: 1rem; }
.value__ic svg { width: 30px; height: 30px; }
.value h4 { margin-bottom: 0.5rem; }

.cert-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.cert { display: inline-flex; align-items: center; gap: 0.6rem; padding: 0.7rem 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-2); font-size: 0.85rem; color: var(--muted); font-weight: 600; letter-spacing: 0.03em; }
.cert svg { width: 18px; height: 18px; color: var(--amber); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); border-top: 1px solid var(--line); padding-top: var(--space-2xl); }
.footer-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; padding-bottom: 3rem; }
@media (min-width: 700px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
@media (min-width: 1000px) { .footer-grid { grid-template-columns: 2.2fr 1fr 1fr 1.3fr; } }
.footer-brand .brand { margin-bottom: 1.25rem; }
.footer-brand p { max-width: 34ch; font-size: 0.94rem; }
.footer-social { display: flex; gap: 0.6rem; margin-top: 1.5rem; }
.footer-social a { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--muted); transition: all 0.3s var(--ease); }
.footer-social a:hover { color: var(--amber); border-color: var(--amber); transform: translateY(-2px); }
.footer-col h5 { font-size: 0.78rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--faint); margin-bottom: 1.25rem; font-weight: 600; }
.footer-col ul { display: grid; gap: 0.75rem; }
.footer-col a { color: var(--muted); font-size: 0.94rem; transition: color 0.25s; }
.footer-col a:hover { color: var(--amber); }
.footer-contact li { display: flex; gap: 0.6rem; align-items: flex-start; color: var(--muted); font-size: 0.94rem; margin-bottom: 0.75rem; }
.footer-contact svg { width: 17px; height: 17px; color: var(--amber); flex-shrink: 0; margin-top: 3px; }
.footer-bottom { border-top: 1px solid var(--line); padding-block: 1.75rem; display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
.footer-bottom p { font-size: 0.84rem; color: var(--faint); }
.footer-bottom .legal { display: flex; gap: 1.5rem; }
.footer-bottom .legal a { font-size: 0.84rem; color: var(--faint); }
.footer-bottom .legal a:hover { color: var(--muted); }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-reveal="left"] { transform: translateX(-30px); }
.reveal[data-reveal="right"] { transform: translateX(30px); }
.reveal[data-reveal="scale"] { transform: scale(0.94); }
.reveal.is-visible[data-reveal] { transform: none; }
[data-delay="1"] { transition-delay: 0.08s; }
[data-delay="2"] { transition-delay: 0.16s; }
[data-delay="3"] { transition-delay: 0.24s; }
[data-delay="4"] { transition-delay: 0.32s; }
[data-delay="5"] { transition-delay: 0.40s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .hero h1 .line > span { transform: none !important; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-sm { margin-top: 1rem; } .mt-md { margin-top: 2rem; } .mt-lg { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; }
.maxw-60 { max-width: 60ch; }
.divider { height: 1px; background: var(--line); border: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 1rem; top: -3rem; z-index: 200; background: var(--amber); color: #11140C; padding: 0.6rem 1rem; border-radius: var(--radius); font-weight: 700; transition: top 0.2s; }
.skip-link:focus { top: 1rem; }