/* =========================================================
   BV-Servers — Landing page
   ========================================================= */

:root {
  color-scheme: light;
  --red: #E10600;
  --red-bright: #FF3B2E;
  --red-dark: #6B0F0F;
  --red-darker: #3A0505;
  --black: #121212;
  --near-black: #1a1a1a;
  --white: #FFFFFF;
  --off-white: #FAF7F7;
  --gray-900: #1f1f1f;
  --gray-700: #4a4a4a;
  --gray-500: #767676;
  --gray-200: #e6e2e2;
  --gray-100: #f2efef;

  --font-display: "Bruno Ace", "Manrope", sans-serif;
  --font-title: "Manrope", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.06 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");

  --container-w: 1180px;
  --header-h: 88px;

  --shadow-sm: 0 2px 10px rgba(0,0,0,0.06);
  --shadow-md: 0 12px 30px rgba(0,0,0,0.10);
  --shadow-red: 0 14px 34px rgba(225,6,0,0.25);

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
* , *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: var(--font-title); margin: 0; line-height: 1.15; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.text-accent { color: var(--red); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--red);
  color: var(--white);
  box-shadow: var(--shadow-red);
}
.btn-primary:hover {
  background: #c30500;
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(225,6,0,0.32);
}
.btn-ghost {
  background: transparent;
  color: var(--gray-900);
  border-color: var(--gray-200);
}
.btn-ghost:hover {
  border-color: var(--red);
  color: var(--red);
  transform: translateY(-2px);
}
.btn-white {
  background: var(--white);
  color: var(--red-dark);
}
.btn-white:hover {
  background: var(--off-white);
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(0,0,0,0.25);
}
.btn-lg { padding: 15px 32px; font-size: 1rem; }
.btn-nav { margin-left: 8px; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background-color .35s var(--ease), box-shadow .35s var(--ease), backdrop-filter .35s var(--ease);
}
.site-header.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 18px rgba(0,0,0,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.3rem;
  letter-spacing: 0.01em;
  color: var(--gray-900);
}
.logo-img {
  width: 65px;
  height: 65px;
  display: block;
  flex: none;
  transition: filter .3s var(--ease);
}
.logo:hover .logo-img {
  filter: drop-shadow(0 0 8px rgba(225,6,0,0.8)) drop-shadow(0 0 20px rgba(225,6,0,0.5));
}
.site-header.scrolled .logo-text,
.logo-footer .logo-text { color: inherit; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.main-nav ul {
  display: flex;
  gap: 30px;
  margin-right: 18px;
}
.nav-link {
  position: relative;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--gray-900);
  padding: 6px 0;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--red);
  transition: width .25s var(--ease);
}
.nav-link:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--gray-900);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--white);
  padding-top: var(--header-h);
}

.hero-wave {
  position: absolute;
  top: 0; right: 0;
  width: 52%;
  height: 100%;
  z-index: 0;
}
.hero-wave svg {
  width: 100%;
  height: 100%;
}
/* Chaque calque est généré avec un motif périodique (période = distance de
   la boucle ci-dessous) et prolongé d'une période au-dessus/en-dessous du
   viewBox. En le translatant d'exactement une période, le point d'arrivée
   est visuellement identique au point de départ : la boucle est invisible.
   Légère oscillation sinusoïdale en plus de la tendance linéaire (amplitude
   volontairement faible pour un flux lisse, sans "bosse"). Calque du milieu
   inversé (monte) et un peu plus rapide. */
.wave-layer { will-change: transform; }
.wave-layer-1 { animation: waveFlow1 12s linear infinite; }
.wave-layer-2 { animation: waveFlow2 11s linear infinite; }
.wave-layer-3 { animation: waveFlow3 9s linear infinite; }

@keyframes waveFlow1 {
  0% { transform: translateY(0.00px); }
  0.83% { transform: translateY(4.31px); }
  1.67% { transform: translateY(8.63px); }
  2.5% { transform: translateY(12.94px); }
  3.33% { transform: translateY(17.25px); }
  4.17% { transform: translateY(21.55px); }
  5% { transform: translateY(25.84px); }
  5.83% { transform: translateY(30.13px); }
  6.67% { transform: translateY(34.41px); }
  7.5% { transform: translateY(38.68px); }
  8.33% { transform: translateY(42.93px); }
  9.17% { transform: translateY(47.18px); }
  10% { transform: translateY(51.41px); }
  10.83% { transform: translateY(55.62px); }
  11.67% { transform: translateY(59.82px); }
  12.5% { transform: translateY(64.01px); }
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  14.17% { transform: translateY(72.32px); }
  15% { transform: translateY(76.44px); }
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  20% { transform: translateY(100.75px); }
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  100% { transform: translateY(460.00px); }
}
@keyframes waveFlow2 {
  0% { transform: translateY(0.00px); }
  0.83% { transform: translateY(-3.79px); }
  1.67% { transform: translateY(-7.58px); }
  2.5% { transform: translateY(-11.37px); }
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  5% { transform: translateY(-22.79px); }
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  8.33% { transform: translateY(-38.13px); }
  9.17% { transform: translateY(-42.00px); }
  10% { transform: translateY(-45.89px); }
  10.83% { transform: translateY(-49.79px); }
  11.67% { transform: translateY(-53.71px); }
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  15% { transform: translateY(-69.59px); }
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  20% { transform: translateY(-94.11px); }
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  85% { transform: translateY(-450.41px); }
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  90% { transform: translateY(-474.11px); }
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  100% { transform: translateY(-520.00px); }
}
@keyframes waveFlow3 {
  0% { transform: translateY(0.00px); }
  0.83% { transform: translateY(3.75px); }
  1.67% { transform: translateY(7.50px); }
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  5% { transform: translateY(22.47px); }
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  40.83% { transform: translateY(167.69px); }
  41.67% { transform: translateY(170.67px); }
  42.5% { transform: translateY(173.63px); }
  43.33% { transform: translateY(176.59px); }
  44.17% { transform: translateY(179.53px); }
  45% { transform: translateY(182.47px); }
  45.83% { transform: translateY(185.40px); }
  46.67% { transform: translateY(188.33px); }
  47.5% { transform: translateY(191.25px); }
  48.33% { transform: translateY(194.17px); }
  49.17% { transform: translateY(197.09px); }
  50% { transform: translateY(200.00px); }
  50.83% { transform: translateY(202.91px); }
  51.67% { transform: translateY(205.83px); }
  52.5% { transform: translateY(208.75px); }
  53.33% { transform: translateY(211.67px); }
  54.17% { transform: translateY(214.60px); }
  55% { transform: translateY(217.53px); }
  55.83% { transform: translateY(220.47px); }
  56.67% { transform: translateY(223.41px); }
  57.5% { transform: translateY(226.37px); }
  58.33% { transform: translateY(229.33px); }
  59.17% { transform: translateY(232.31px); }
  60% { transform: translateY(235.30px); }
  60.83% { transform: translateY(238.30px); }
  61.67% { transform: translateY(241.31px); }
  62.5% { transform: translateY(244.34px); }
  63.33% { transform: translateY(247.39px); }
  64.17% { transform: translateY(250.45px); }
  65% { transform: translateY(253.53px); }
  65.83% { transform: translateY(256.62px); }
  66.67% { transform: translateY(259.74px); }
  67.5% { transform: translateY(262.87px); }
  68.33% { transform: translateY(266.02px); }
  69.17% { transform: translateY(269.20px); }
  70% { transform: translateY(272.39px); }
  70.83% { transform: translateY(275.61px); }
  71.67% { transform: translateY(278.84px); }
  72.5% { transform: translateY(282.10px); }
  73.33% { transform: translateY(285.38px); }
  74.17% { transform: translateY(288.68px); }
  75% { transform: translateY(292.00px); }
  75.83% { transform: translateY(295.34px); }
  76.67% { transform: translateY(298.71px); }
  77.5% { transform: translateY(302.10px); }
  78.33% { transform: translateY(305.51px); }
  79.17% { transform: translateY(308.94px); }
  80% { transform: translateY(312.39px); }
  80.83% { transform: translateY(315.86px); }
  81.67% { transform: translateY(319.36px); }
  82.5% { transform: translateY(322.87px); }
  83.33% { transform: translateY(326.41px); }
  84.17% { transform: translateY(329.96px); }
  85% { transform: translateY(333.53px); }
  85.83% { transform: translateY(337.12px); }
  86.67% { transform: translateY(340.72px); }
  87.5% { transform: translateY(344.34px); }
  88.33% { transform: translateY(347.98px); }
  89.17% { transform: translateY(351.63px); }
  90% { transform: translateY(355.30px); }
  90.83% { transform: translateY(358.98px); }
  91.67% { transform: translateY(362.67px); }
  92.5% { transform: translateY(366.37px); }
  93.33% { transform: translateY(370.08px); }
  94.17% { transform: translateY(373.80px); }
  95% { transform: translateY(377.53px); }
  95.83% { transform: translateY(381.26px); }
  96.67% { transform: translateY(385.00px); }
  97.5% { transform: translateY(388.75px); }
  98.33% { transform: translateY(392.50px); }
  99.17% { transform: translateY(396.25px); }
  100% { transform: translateY(400.00px); }
}

.hero-inner {
  position: relative;
  z-index: 1;
}
.hero-content { max-width: 620px; }

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--red-dark);
  margin-bottom: 18px;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.6vw, 4rem);
  font-weight: 400;
  color: var(--red);
  letter-spacing: 0.01em;
  margin-bottom: 10px;
}
.hero-subtitle {
  font-family: var(--font-title);
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  font-weight: 700;
  color: var(--gray-900);
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin-bottom: 22px;
}
.hero-text {
  font-size: 1.05rem;
  color: var(--gray-700);
  max-width: 520px;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* =========================================================
   SECTIONS — shared
   ========================================================= */
.section { padding: 110px 0; }
.section-title {
  font-size: clamp(1.9rem, 3.6vw, 2.6rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 18px;
}
.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  background: var(--red);
  border-radius: 2px;
  margin: 18px auto 0;
}
.section-lead {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  color: var(--gray-700);
  font-size: 1.05rem;
}

/* ---------- reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   ADVANTAGES ("Pourquoi nous")
   ========================================================= */
.advantages { background: var(--off-white); }

.advantages-grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 40px;
}
.advantages-col {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.advantage-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 26px 24px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.advantage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.advantage-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--red-bright), var(--red-dark));
  color: var(--white);
  margin-bottom: 16px;
}
.advantage-icon i { width: 22px; height: 22px; }
.advantage-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.advantage-card p {
  color: var(--gray-700);
  font-size: 0.92rem;
}

.advantages-center { display: flex; justify-content: center; }
.center-circle {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, var(--red-bright), var(--red) 55%, var(--red-darker) 100%);
  color: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  box-shadow: 0 20px 46px rgba(225,6,0,0.32);
  position: relative;
}
.center-circle::before {
  content: "";
  position: absolute;
  inset: -16px;
  border: 2px dashed var(--gray-200);
  border-radius: 50%;
  z-index: -1;
}
.center-circle-mark {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.8rem;
  letter-spacing: 0.04em;
}
.center-circle-text {
  font-size: 0.82rem;
  font-weight: 600;
  margin-top: 8px;
  opacity: 0.92;
}

/* =========================================================
   SERVICES — bento
   ========================================================= */
.services-grid {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(200px, auto);
  grid-auto-flow: dense;
  gap: 20px;
}
.service-card--featured { grid-column: span 2; grid-row: span 2; }
.service-card--wide { grid-column: span 2; }

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 18px;
  padding: 28px 26px;
  overflow: hidden;
  --rx: 0deg; --ry: 0deg; --ty: 0px;
  transform: translateY(var(--ty)) perspective(800px) rotateX(var(--rx)) rotateY(var(--ry));
  transition: transform .15s ease-out, box-shadow .35s var(--ease), border-color .35s var(--ease);
  will-change: transform;
}
.service-card:hover {
  --ty: -6px;
  border-color: rgba(225,6,0,0.35);
  box-shadow: 0 20px 45px rgba(0,0,0,0.10), 0 0 34px rgba(225,6,0,0.14);
}

/* Trame scanline, très discrète, façon écran technique */
.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(0deg, rgba(225,6,0,0.04) 0px, rgba(225,6,0,0.04) 1px, transparent 1px, transparent 4px);
  pointer-events: none;
}

/* Coins "HUD" révélés au survol */
.service-card::after {
  content: "";
  position: absolute;
  inset: 12px;
  background-image:
    linear-gradient(to right, var(--red) 14px, transparent 14px), linear-gradient(to bottom, var(--red) 14px, transparent 14px),
    linear-gradient(to left, var(--red) 14px, transparent 14px), linear-gradient(to bottom, var(--red) 14px, transparent 14px),
    linear-gradient(to right, var(--red) 14px, transparent 14px), linear-gradient(to top, var(--red) 14px, transparent 14px),
    linear-gradient(to left, var(--red) 14px, transparent 14px), linear-gradient(to top, var(--red) 14px, transparent 14px);
  background-repeat: no-repeat;
  background-size: 14px 1.5px, 1.5px 14px, 14px 1.5px, 1.5px 14px, 14px 1.5px, 1.5px 14px, 14px 1.5px, 1.5px 14px;
  background-position: top left, top left, top right, top right, bottom left, bottom left, bottom right, bottom right;
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}
.service-card:hover::after { opacity: 1; }

.service-index {
  position: absolute;
  top: 24px; right: 26px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--gray-200);
  transition: color .35s var(--ease);
}
.service-card:hover .service-index { color: var(--red); }

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(225,6,0,0.12), rgba(107,15,15,0.12));
  color: var(--red);
  margin-bottom: 20px;
}
.service-icon i { width: 24px; height: 24px; }
.service-card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 10px;
  padding-right: 40px;
}
.service-card p {
  color: var(--gray-700);
  font-size: 0.93rem;
  margin-bottom: 16px;
}
.service-card--featured .service-icon { width: 64px; height: 64px; }
.service-card--featured .service-icon i { width: 30px; height: 30px; }
.service-card--featured h3 { font-size: 1.5rem; }
.service-card--featured p { font-size: 1rem; max-width: 440px; }

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--red);
  margin-top: auto;
  transition: gap .25s var(--ease);
}
.card-link i { width: 15px; height: 15px; }
.card-link:hover { gap: 10px; }

/* =========================================================
   APPROACH (dark)
   ========================================================= */
.approach {
  background: linear-gradient(160deg, var(--red-darker) 0%, var(--red-dark) 55%, var(--red) 130%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.approach::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 15%, rgba(255,255,255,0.08), transparent 55%);
  pointer-events: none;
}
.approach::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--grain);
  mix-blend-mode: overlay;
  pointer-events: none;
}
.approach-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
.eyebrow-light { color: rgba(255,255,255,0.75); }
.section-title-light { color: var(--white); text-align: left; }
.section-title-light::after { margin: 18px 0 0; }
.approach-lead {
  color: rgba(255,255,255,0.82);
  font-size: 1.02rem;
  max-width: 480px;
  margin: 20px 0 44px;
}

.approach-steps { display: flex; flex-direction: column; gap: 26px; }
.approach-steps li {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.step-icon {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-icon i { width: 20px; height: 20px; }
.approach-steps h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.approach-steps p {
  color: rgba(255,255,255,0.78);
  font-size: 0.92rem;
  max-width: 400px;
}

/* ---------- mockup card ---------- */
.approach-visual { display: flex; justify-content: center; }
.mockup-card {
  width: 100%;
  max-width: 400px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 18px;
  overflow: hidden;
  backdrop-filter: blur(6px);
  box-shadow: 0 30px 60px rgba(0,0,0,0.35);
}
.mockup-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(0,0,0,0.18);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.mockup-bar span {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
}
.mockup-bar-title {
  width: auto !important;
  height: auto !important;
  border-radius: 0 !important;
  background: none !important;
  margin-left: 10px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  font-family: var(--font-mono);
}
.mockup-body { padding: 22px 20px 26px; }
.mockup-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 0.88rem;
}
.mockup-row:last-of-type { border-bottom: none; }
.mockup-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex: none;
}
.mockup-dot-ok { background: #3ddc73; box-shadow: 0 0 8px rgba(61,220,115,0.7); }
.mockup-dot-warn { background: #ffb020; box-shadow: 0 0 8px rgba(255,176,32,0.7); }
.mockup-label { flex: 1; color: rgba(255,255,255,0.85); }
.mockup-status { color: rgba(255,255,255,0.55); font-size: 0.82rem; }

.mockup-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 70px;
  margin-top: 22px;
}
.mockup-chart span {
  flex: 1;
  height: var(--h);
  background: linear-gradient(180deg, var(--red-bright), rgba(255,59,46,0.35));
  border-radius: 4px 4px 0 0;
}
.mockup-caption {
  margin-top: 14px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact {
  position: relative;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 60%, var(--red-darker) 130%);
  color: var(--white);
  overflow: hidden;
}
.contact::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--grain);
  mix-blend-mode: overlay;
  pointer-events: none;
}
.contact .container { position: relative; }
.section-lead-light { color: rgba(255,255,255,0.85); }

.contact-form {
  max-width: 760px;
  margin: 50px auto 0;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 26px;
}
.form-field-message { grid-column: 1 / -1; }
.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: rgba(255,255,255,0.85);
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.95);
  color: var(--gray-900);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--white);
  box-shadow: 0 0 0 3px rgba(255,255,255,0.35);
}
.form-feedback {
  margin-top: 16px;
  font-size: 0.92rem;
  font-weight: 600;
  min-height: 1.2em;
  color: #fff7cc;
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  position: relative;
  background: var(--black);
  color: rgba(255,255,255,0.7);
  padding: 70px 0 30px;
  overflow: hidden;
}
.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--grain);
  mix-blend-mode: overlay;
  pointer-events: none;
}
.site-footer .footer-inner { position: relative; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand .logo { color: var(--white); margin-bottom: 14px; }
.footer-brand .logo-img { width: 76px; height: 76px; }
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.55); max-width: 260px; }
.footer-social { min-height: 4px; }

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 0.9rem; transition: color .2s var(--ease); }
.footer-col a:hover { color: var(--red-bright); }
.footer-col li { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }
.footer-col li i { width: 15px; height: 15px; flex: none; color: var(--red-bright); }
.footer-legal li { font-size: 0.82rem; color: rgba(255,255,255,0.45); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px) {
  .approach-inner { grid-template-columns: 1fr; }
  .approach-visual { order: -1; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 30px;
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
  }
  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 4px;
    margin-right: 0;
    margin-bottom: 18px;
  }
  .main-nav ul li a { display: block; padding: 12px 4px; }
  .btn-nav { width: 100%; justify-content: center; }
  .nav-toggle { display: flex; flex: none; }

  .header-inner { flex-wrap: nowrap; }
  .logo { font-size: 1rem; gap: 8px; min-width: 0; }
  .logo-img { width: 44px; height: 44px; }
  .logo-text { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

  .hero-wave { width: 100%; height: 46%; top: auto; bottom: 0; opacity: 0.9; }
  .hero { min-height: auto; padding-bottom: 46vh; }
  .hero-content { max-width: 100%; text-align: left; }

  .advantages-grid { grid-template-columns: 1fr; }
  .advantages-center { order: -1; margin-bottom: 8px; }
  .center-circle { width: 180px; height: 180px; }
}

@media (max-width: 640px) {
  .section { padding: 80px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card--featured, .service-card--wide { grid-column: span 1; grid-row: span 1; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero-title { font-size: 2.4rem; }
}

@media (max-width: 420px) {
  .footer-inner { grid-template-columns: 1fr; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .wave-layer-1, .wave-layer-2, .wave-layer-3 { animation: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
}