/* ============================================================
   VOLTURA HOMETECH — Shared Stylesheet
   Brand: Energy Meets Intelligence
   Palette + type derived from the brand logo (navy / electric
   blue = energy, ember orange = intelligence/spark, silver text)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

:root {
  /* Surfaces */
  --abyss: #060912;
  --midnight: #0A0E1A;
  --surface: #121A2C;
  --surface-2: #18223A;
  --line: rgba(199, 207, 221, 0.10);
  --line-strong: rgba(199, 207, 221, 0.18);

  /* Energy (solar) */
  --volt: #2B7FFF;
  --volt-soft: #5AA0FF;
  --volt-glow: rgba(43, 127, 255, 0.45);

  /* Intelligence (smart / spark) */
  --ember: #FF7A18;
  --ember-soft: #FF9A47;
  --ember-glow: rgba(255, 122, 24, 0.40);

  /* Text */
  --white: #F5F8FE;
  --silver: #DBE2F0;
  --mist: #8A97AE;
  --mist-dim: #5C6880;

  /* Type */
  --display: 'Space Grotesk', system-ui, sans-serif;
  --body: 'Manrope', system-ui, sans-serif;
  --mono: 'Space Mono', ui-monospace, monospace;

  /* Layout */
  --maxw: 1200px;
  --radius: 16px;
  --radius-lg: 24px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--body);
  background: var(--midnight);
  color: var(--silver);
  line-height: 1.6;
  font-size: 17px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Ambient background glows */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(640px 480px at 12% -8%, rgba(43, 127, 255, 0.16), transparent 60%),
    radial-gradient(620px 520px at 100% 6%, rgba(255, 122, 24, 0.12), transparent 58%),
    radial-gradient(900px 700px at 50% 120%, rgba(43, 127, 255, 0.08), transparent 60%);
  z-index: -2;
  pointer-events: none;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

.section { padding: 96px 0; position: relative; }
.section--tight { padding: 64px 0; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--volt-soft);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: '';
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--volt), var(--ember));
}
.eyebrow--ember { color: var(--ember-soft); }

.section-head { max-width: 660px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::before { display: none; }

h1, h2, h3, h4 { font-family: var(--display); color: var(--white); line-height: 1.08; font-weight: 600; letter-spacing: -0.02em; }

h2.title { font-size: clamp(30px, 4.4vw, 46px); }
h3.sub { font-size: clamp(21px, 2.4vw, 27px); }

.lead { color: var(--mist); font-size: 18px; line-height: 1.65; }

/* ---------- Power-flow divider (signature) ---------- */
.flowline {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--volt) 30%, var(--ember) 70%, transparent);
  opacity: 0.55;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 500;
  font-size: 15.5px;
  padding: 14px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }

.btn--primary {
  color: #0a0e1a;
  background: linear-gradient(95deg, var(--volt-soft), var(--volt));
  box-shadow: 0 8px 30px var(--volt-glow);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px var(--volt-glow); }

.btn--ember {
  color: #1a0d02;
  background: linear-gradient(95deg, var(--ember-soft), var(--ember));
  box-shadow: 0 8px 30px var(--ember-glow);
}
.btn--ember:hover { transform: translateY(-2px); box-shadow: 0 14px 40px var(--ember-glow); }

.btn--ghost {
  color: var(--silver);
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--volt); color: var(--white); transform: translateY(-2px); }

/* ============================================================
   NAVBAR
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 12, 22, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 42px; height: 42px; border-radius: 10px; }
.brand-txt { display: flex; flex-direction: column; line-height: 1; }
.brand-name {
  font-family: var(--display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--white);
}
.brand-name b { color: var(--ember); font-weight: 700; }
.brand-tag {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
  margin-top: 4px;
}

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-size: 15px;
  font-weight: 600;
  color: var(--mist);
  padding: 9px 15px;
  border-radius: 9px;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--white); background: rgba(255, 255, 255, 0.04); }
.nav-links a.active { color: var(--white); }
.nav-links a.active::after {
  content: '';
  display: block;
  height: 2px;
  margin-top: 5px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--volt), var(--ember));
}
.nav-cta { margin-left: 8px; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  width: 44px;
  height: 44px;
  color: var(--white);
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 22px; height: 22px; }

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; padding: 84px 0 88px; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero h1 { font-size: clamp(40px, 6vw, 70px); font-weight: 700; }
.hero h1 .grad {
  background: linear-gradient(100deg, var(--volt-soft), var(--ember));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead { margin: 24px 0 34px; max-width: 520px; font-size: 19px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 34px;
  margin-top: 48px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.stat .num {
  font-family: var(--display);
  font-size: 30px;
  font-weight: 700;
  color: var(--white);
}
.stat .num span { color: var(--ember); }
.stat .lab { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mist); margin-top: 4px; }

/* Hero visual: logo on glowing energy disc */
.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; }
.hero-disc {
  position: relative;
  width: min(440px, 100%);
  aspect-ratio: 1;
  border-radius: 30px;
  background:
    radial-gradient(circle at 50% 42%, rgba(43, 127, 255, 0.22), transparent 62%),
    linear-gradient(160deg, var(--surface-2), var(--abyss));
  border: 1px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  overflow: hidden;
}
.hero-disc img { width: 86%; filter: drop-shadow(0 10px 40px rgba(43, 127, 255, 0.35)); }
.hero-disc::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 30px;
  padding: 1px;
  background: linear-gradient(140deg, var(--volt), transparent 40%, transparent 60%, var(--ember));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.7;
}
.spark {
  position: absolute;
  border-radius: 999px;
  filter: blur(1px);
  animation: float 6s ease-in-out infinite;
}
.spark.s1 { width: 12px; height: 12px; background: var(--volt); top: 12%; left: 14%; box-shadow: 0 0 20px var(--volt); }
.spark.s2 { width: 9px; height: 9px; background: var(--ember); bottom: 16%; right: 18%; animation-delay: 1.4s; box-shadow: 0 0 18px var(--ember); }
.spark.s3 { width: 7px; height: 7px; background: var(--volt-soft); top: 50%; right: 8%; animation-delay: .7s; box-shadow: 0 0 16px var(--volt-soft); }
@keyframes float { 0%,100%{ transform: translateY(0); opacity:.9 } 50%{ transform: translateY(-16px); opacity:.5 } }

/* ============================================================
   PAGE HEADER (interior pages)
   ============================================================ */
.page-head { padding: 70px 0 46px; position: relative; }
.page-head h1 { font-size: clamp(34px, 5.2vw, 56px); font-weight: 700; }
.page-head p { color: var(--mist); font-size: 19px; max-width: 620px; margin-top: 18px; }
.crumb { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mist-dim); margin-bottom: 18px; }
.crumb b { color: var(--volt-soft); font-weight: 400; }

/* ============================================================
   DUAL SPLIT (energy vs intelligence)
   ============================================================ */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.duo-card {
  position: relative;
  padding: 38px 34px;
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, var(--surface), var(--midnight));
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform .35s var(--ease), border-color .35s var(--ease);
}
.duo-card:hover { transform: translateY(-4px); }
.duo-card .glow { position: absolute; top: -40px; right: -40px; width: 180px; height: 180px; border-radius: 999px; filter: blur(50px); opacity: .5; }
.duo-card.energy { border-color: rgba(43,127,255,0.22); }
.duo-card.energy:hover { border-color: rgba(43,127,255,0.5); }
.duo-card.energy .glow { background: var(--volt); }
.duo-card.smart { border-color: rgba(255,122,24,0.22); }
.duo-card.smart:hover { border-color: rgba(255,122,24,0.5); }
.duo-card.smart .glow { background: var(--ember); }
.duo-ic { width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 22px; position: relative; }
.duo-ic svg { width: 28px; height: 28px; }
.energy .duo-ic { background: rgba(43,127,255,0.12); color: var(--volt-soft); }
.smart .duo-ic { background: rgba(255,122,24,0.12); color: var(--ember-soft); }
.duo-card h3 { font-size: 24px; margin-bottom: 12px; }
.duo-card p { color: var(--mist); font-size: 16px; margin-bottom: 20px; }
.duo-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.duo-list li { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--silver); }
.duo-list li::before { content: ''; width: 6px; height: 6px; border-radius: 999px; flex: none; }
.energy .duo-list li::before { background: var(--volt); }
.smart .duo-list li::before { background: var(--ember); }

/* ============================================================
   FEATURE STRIP (why us)
   ============================================================ */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat {
  padding: 30px 28px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.018);
  border: 1px solid var(--line);
  transition: border-color .3s, background .3s;
}
.feat:hover { border-color: var(--line-strong); background: rgba(255,255,255,0.03); }
.feat .fi { width: 46px; height: 46px; border-radius: 12px; background: rgba(43,127,255,0.10); color: var(--volt-soft); display:flex; align-items:center; justify-content:center; margin-bottom:18px; }
.feat .fi svg { width: 24px; height: 24px; }
.feat h4 { font-size: 18.5px; margin-bottom: 9px; }
.feat p { font-size: 15px; color: var(--mist); }

/* ============================================================
   PRODUCT CATALOG
   ============================================================ */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 38px; }
.filter {
  font-family: var(--display);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--mist);
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  transition: all .25s var(--ease);
}
.filter:hover { color: var(--white); border-color: var(--volt); }
.filter.active { color: #0a0e1a; background: linear-gradient(95deg, var(--volt-soft), var(--volt)); border-color: transparent; }
.filter[data-cat="smart"].active { background: linear-gradient(95deg, var(--ember-soft), var(--ember)); }

.catalog {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  position: relative;
  border-radius: var(--radius);
  background: linear-gradient(170deg, var(--surface), var(--midnight));
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: var(--line-strong); box-shadow: 0 24px 50px rgba(0,0,0,0.4); }

/* product image placeholder — swap .ph for a real <img> later */
.card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 35%, rgba(43,127,255,0.14), transparent 65%), var(--abyss);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.card[data-cat="smart"] .card-media { background: radial-gradient(circle at 50% 35%, rgba(255,122,24,0.14), transparent 65%), var(--abyss); }
.card-media .ph { width: 42%; opacity: 0.85; color: var(--volt-soft); }
.card[data-cat="smart"] .card-media .ph { color: var(--ember-soft); }
/* real product photos: drop an <img> into .card-media and it fills the box */
.card-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.card-tag { z-index: 2; }
.card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(8,12,22,0.7);
  border: 1px solid var(--line-strong);
  color: var(--volt-soft);
  backdrop-filter: blur(6px);
}
.card[data-cat="smart"] .card-tag { color: var(--ember-soft); }

.card-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 19px; margin-bottom: 8px; }
.card-body p { font-size: 14.5px; color: var(--mist); margin-bottom: 16px; flex: 1; }
.specs { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 18px; }
.spec {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--silver);
  padding: 4px 9px;
  border-radius: 7px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
}
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.inquire {
  font-family: var(--display);
  font-weight: 600;
  font-size: 14px;
  color: var(--volt-soft);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: gap .25s var(--ease), color .25s;
}
.card[data-cat="smart"] .inquire { color: var(--ember-soft); }
.inquire svg { width: 15px; height: 15px; }
.inquire:hover { gap: 11px; }
.card.hide { display: none; }

/* ============================================================
   PROCESS STEPS (services)
   ============================================================ */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step {
  padding: 30px 26px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.018);
  border: 1px solid var(--line);
  position: relative;
}
.step .n {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ember-soft);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  display: block;
}
.step h4 { font-size: 18.5px; margin-bottom: 9px; }
.step p { font-size: 14.5px; color: var(--mist); }

/* service rows */
.srv { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.srv-card {
  padding: 36px 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, var(--surface), var(--midnight));
  border: 1px solid var(--line);
}
.srv-card .badge {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--volt-soft); margin-bottom: 16px; display: inline-block;
}
.srv-card.b .badge { color: var(--ember-soft); }
.srv-card h3 { font-size: 23px; margin-bottom: 12px; }
.srv-card p { color: var(--mist); font-size: 15.5px; margin-bottom: 18px; }
.srv-card ul { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.srv-card li { display: flex; gap: 11px; font-size: 15px; align-items: flex-start; }
.srv-card li svg { width: 18px; height: 18px; flex: none; margin-top: 2px; color: var(--volt-soft); }
.srv-card.b li svg { color: var(--ember-soft); }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band { position: relative; border-radius: var(--radius-lg); overflow: hidden; padding: 64px 48px; text-align: center;
  background: linear-gradient(150deg, var(--surface-2), var(--abyss)); border: 1px solid var(--line-strong); }
.cta-band::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(500px 240px at 20% 0%, rgba(43,127,255,0.2), transparent 60%),
              radial-gradient(500px 240px at 80% 100%, rgba(255,122,24,0.18), transparent 60%);
}
.cta-band > * { position: relative; }
.cta-band h2 { font-size: clamp(28px, 4vw, 42px); margin-bottom: 16px; }
.cta-band p { color: var(--mist); font-size: 18px; max-width: 560px; margin: 0 auto 30px; }
.cta-band .hero-cta { justify-content: center; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 0.85fr; gap: 40px; align-items: start; }

.form-card {
  padding: 38px 36px;
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, var(--surface), var(--midnight));
  border: 1px solid var(--line);
}
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--silver); margin-bottom: 8px; }
.field label span { color: var(--ember); }
.field input, .field select, .field textarea {
  width: 100%;
  font-family: var(--body);
  font-size: 15.5px;
  color: var(--white);
  background: var(--abyss);
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  padding: 13px 15px;
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder, .field textarea::placeholder { color: var(--mist-dim); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--volt); box-shadow: 0 0 0 3px var(--volt-glow);
}
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238A97AE' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 15px center; padding-right: 40px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: 13px; color: var(--mist-dim); margin-top: 14px; }
.form-ok {
  display: none; margin-top: 18px; padding: 14px 16px; border-radius: 11px;
  background: rgba(43,127,255,0.10); border: 1px solid rgba(43,127,255,0.35);
  color: var(--volt-soft); font-size: 14.5px;
}
.form-ok.show { display: block; }

.info-stack { display: flex; flex-direction: column; gap: 16px; }
.info-card {
  padding: 26px 26px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.018);
  border: 1px solid var(--line);
}
.info-card .ih { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.info-card .ih .ic { width: 40px; height: 40px; border-radius: 11px; background: rgba(43,127,255,0.10); color: var(--volt-soft); display:flex; align-items:center; justify-content:center; }
.info-card .ih .ic svg { width: 20px; height: 20px; }
.info-card .ih h4 { font-size: 16.5px; }
.info-card p, .info-card a { font-size: 14.5px; color: var(--mist); line-height: 1.55; }
.info-card a:hover { color: var(--volt-soft); }
.entity { padding-top: 14px; margin-top: 14px; border-top: 1px solid var(--line); }
.entity:first-of-type { padding-top: 0; margin-top: 0; border-top: none; }
.entity .et { font-family: var(--display); font-weight: 600; color: var(--white); font-size: 15px; margin-bottom: 3px; }
.entity .ed { font-size: 13px; color: var(--mist); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { border-top: 1px solid var(--line); padding: 64px 0 34px; margin-top: 40px; background: var(--abyss); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.foot-brand .brand { margin-bottom: 18px; }
.foot-brand p { font-size: 14.5px; color: var(--mist); max-width: 280px; }
.foot-col h5 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mist-dim); margin-bottom: 18px; }
.foot-col a, .foot-col p { display: block; font-size: 14.5px; color: var(--mist); margin-bottom: 11px; transition: color .2s; }
.foot-col a:hover { color: var(--white); }
.foot-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 28px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.foot-bottom p { font-size: 13px; color: var(--mist-dim); }
.foot-socials { display: flex; gap: 10px; }
.foot-socials a { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line-strong); display: flex; align-items: center; justify-content: center; color: var(--mist); transition: all .25s; }
.foot-socials a:hover { color: var(--white); border-color: var(--volt); transform: translateY(-2px); }
.foot-socials svg { width: 18px; height: 18px; }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { order: -1; }
  .hero-disc { width: min(360px, 80%); }
  .catalog { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .section { padding: 68px 0; }
  .wrap { padding: 0 20px; }
  .nav-links {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(8, 12, 22, 0.97);
    backdrop-filter: blur(18px);
    padding: 18px 20px 26px;
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s, transform .25s;
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 13px 14px; border-radius: 10px; }
  .nav-links a.active::after { display: none; }
  .nav-cta { margin: 8px 0 0; }
  .nav-cta .btn { width: 100%; justify-content: center; }
  .nav-toggle { display: flex; }
  .duo { grid-template-columns: 1fr; }
  .srv { grid-template-columns: 1fr; }
  .catalog { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .row2 { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 48px 26px; }
  .hero-stats { gap: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* keyboard focus */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--volt-soft);
  outline-offset: 2px;
  border-radius: 6px;
}