/* ============ SolidFormLab — Design Tokens ============ */
:root {
  --bg: #0B0E13;
  --bg-alt: #10141B;
  --surface: #151A23;
  --surface-2: #1A2029;
  --border: #242C38;
  --border-strong: #38445A;
  --text: #E8ECF2;
  --text-muted: #97A3B4;
  --steel-1: #C9D1DC;
  --steel-2: #8A94A2;
  --accent: #F5A623;
  --accent-strong: #E08D00;
  --on-accent: #14100A;
  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 20px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, .45);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'Cascadia Code', monospace;

  /* Messenger CTA colors — scoped to Telegram/WhatsApp buttons + the sticky
     FAB only. Native platform colors were chosen deliberately for instant
     app recognition; do not use these as general-purpose accents elsewhere. */
  --tg-blue: #2AABEE;
  --tg-blue-strong: #229ED9;
  --tg-on: #FFFFFF;
  --wa-green: #25D366;
  --wa-green-strong: #1DA851;
  --wa-on: #FFFFFF;
}

/* ============ Reset & Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; letter-spacing: -0.01em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 var(--space-3); }
.container-narrow { max-width: 820px; }

.icon { width: 20px; height: 20px; flex-shrink: 0; }
.icon-lg { width: 32px; height: 32px; flex-shrink: 0; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 13px 26px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 15px; line-height: 1.2; white-space: nowrap;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .15s ease;
  cursor: pointer; border: 1px solid transparent; min-height: 48px;
}
.btn:active { transform: scale(.97); }
.btn-accent { background: var(--accent); color: var(--on-accent); }
.btn-accent:hover { background: var(--accent-strong); }
.btn-tg { background: var(--tg-blue); color: var(--tg-on); }
.btn-tg:hover { background: var(--tg-blue-strong); }
.btn-wa { background: var(--wa-green); color: var(--wa-on); }
.btn-wa:hover { background: var(--wa-green-strong); }
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-sm { padding: 9px 18px; font-size: 14px; min-height: 40px; }
.header-cta { padding: 9px 14px; font-size: 13.5px; gap: 7px; }

/* ============ Header ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11, 14, 19, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease;
}
.site-header.scrolled { border-bottom-color: var(--border); }
.header-inner {
  display: flex; align-items: center; gap: var(--space-2); height: 72px;
  max-width: 1680px; /* wider than the 1180px content container, so the nav
     row (worst case: Armenian, 7 items) always has room to stay inline */
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: -0.02em; min-width: 0; flex-shrink: 1; }
.brand-name { display: inline-block; min-width: 0; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; vertical-align: middle; }
.brand-mark { width: 38px; height: 38px; border-radius: 10px; object-fit: cover; flex-shrink: 0; }
.brand-accent { color: var(--accent); }

.main-nav { display: flex; gap: 2px; margin-left: auto; flex-shrink: 0; }
.main-nav a {
  padding: 8px 8px; border-radius: 8px; font-size: 13.5px; font-weight: 500;
  color: var(--text-muted); transition: color .2s ease, background .2s ease;
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active { color: var(--text); background: rgba(255,255,255,.05); }

.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; flex-shrink: 0; }
.main-nav + .header-actions { margin-left: 0; }

.lang-switcher { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; flex-shrink: 0; }
.lang-switcher button {
  width: 38px; flex-shrink: 0; padding: 7px 0; text-align: center;
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  transition: background .2s ease, color .2s ease;
}
.lang-switcher button + button { border-left: 1px solid var(--border); }
.lang-switcher button:hover { color: var(--text); }
.lang-switcher button.active { background: var(--surface-2); color: var(--accent); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s ease, opacity .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ Hero ============ */
.hero { position: relative; overflow: hidden; padding: clamp(80px, 14vh, 160px) 0 var(--space-7); min-height: 88vh; display: flex; align-items: center; }
.hero-media { position: absolute; inset: 0; z-index: -1; background: radial-gradient(ellipse 80% 60% at 60% 20%, #1A2233 0%, var(--bg) 65%); }
.hero-media video { width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1.2s ease; }
.hero-media video.loaded { opacity: .38; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,14,19,.55) 0%, rgba(11,14,19,.35) 45%, var(--bg) 100%);
}
.hero-inner { position: relative; max-width: 900px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px; border: 1px solid var(--border); border-radius: 100px;
  font-size: 13.5px; font-weight: 500; color: var(--text-muted);
  background: rgba(21,26,35,.6); margin-bottom: var(--space-3);
}
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.hero-title {
  font-size: clamp(34px, 5.4vw, 62px); font-weight: 800; letter-spacing: -0.03em;
  background: linear-gradient(120deg, #FFFFFF 20%, var(--steel-1) 60%, var(--steel-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: var(--space-3); max-width: 20ch;
}
.hero-subtitle { font-size: clamp(16px, 2vw, 19px); color: var(--text-muted); max-width: 58ch; margin-bottom: var(--space-4); }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.hero-microcopy {
  display: flex; align-items: center; gap: 8px; margin-top: var(--space-2); margin-bottom: var(--space-6);
  font-size: 13.5px; color: var(--text-muted);
}
.hero-microcopy-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #3ECF6E; flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(62, 207, 110, .18);
}

.hero-badges { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: var(--space-2); }
.hero-badge-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: var(--space-2); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.hero-badge-item .icon { color: var(--accent); margin-top: 2px; }
.hero-badge-item strong { display: block; font-size: 18px; font-weight: 800; letter-spacing: -0.02em; }
.hero-badge-item span { display: block; font-size: 12.5px; color: var(--text-muted); margin-top: 2px; line-height: 1.35; }

/* ============ Sections ============ */
.section { padding: var(--space-7) 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 640px; margin-bottom: var(--space-5); }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.02em; margin-bottom: 12px; }
.section-head p { color: var(--text-muted); font-size: 17px; }

.grid { display: grid; gap: var(--space-3); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ============ Cards ============ */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: var(--space-4); transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.card:hover { border-color: #38445A; transform: translateY(-3px); box-shadow: var(--shadow); }
.card-icon {
  width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
  border-radius: 12px; background: linear-gradient(140deg, var(--surface-2), #202b3d);
  border: 1px solid var(--border); color: var(--accent); margin-bottom: var(--space-3);
}
.card h3 { font-size: 18.5px; margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: 15px; }

.card-img { padding: 0; overflow: hidden; }
.card-img img { width: 100%; height: 260px; object-fit: cover; background: #fff; }
.card-img .card-body { padding: var(--space-4); }

.tag {
  display: inline-block; padding: 4px 12px; border-radius: 100px; font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--accent); background: rgba(245,166,35,.1); border: 1px solid rgba(245,166,35,.25);
  margin-bottom: 12px;
}

/* ============ Process ============ */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); list-style: none; counter-reset: step; }
.step {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: var(--space-4);
}
.step-num {
  font-size: 42px; font-weight: 800; letter-spacing: -0.03em; line-height: 1;
  background: linear-gradient(180deg, var(--steel-1), rgba(138,148,162,.15));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  display: block; margin-bottom: var(--space-2);
}
.step h3 { font-size: 17.5px; margin-bottom: 8px; }
.step p { color: var(--text-muted); font-size: 14.5px; }

/* ============ Equipment ============ */
.equip-featured {
  display: grid; grid-template-columns: 2fr 3fr; gap: var(--space-5);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; margin-bottom: var(--space-3);
}
.equip-featured-img { background: var(--surface-2); display: flex; align-items: center; justify-content: center; min-height: 320px; }
.equip-featured-img img { width: 100%; height: 100%; object-fit: cover; }
.equip-featured-body { padding: var(--space-5) var(--space-5) var(--space-5) 0; }
.equip-featured-body h3 { font-size: 26px; margin-bottom: 14px; }
.equip-featured-body > p { color: var(--text-muted); margin-bottom: var(--space-3); }
.spec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-2); }
.spec-grid > div { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 18px; }
.spec-grid dt { font-size: 12.5px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }
.spec-grid dd { font-size: 17px; font-weight: 700; color: var(--steel-1); margin-top: 3px; font-variant-numeric: tabular-nums; }

/* ============ Problems We Solve — Carousel ============ */
.problems-progress { height: 3px; background: var(--border); border-radius: 3px; margin-bottom: var(--space-4); overflow: hidden; }
.problems-progress-fill { height: 100%; width: 20%; background: var(--accent); border-radius: 3px; }

.problems-carousel-wrap { position: relative; margin: 0 calc(var(--space-3) * -1); }
.problems-carousel {
  display: flex; gap: var(--space-3); overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 4px var(--space-3) var(--space-2); scroll-padding-left: var(--space-3);
  scrollbar-width: none; -ms-overflow-style: none;
  cursor: grab;
}
.problems-carousel.dragging { cursor: grabbing; user-select: none; }
.problems-carousel.dragging, .problems-carousel.wheeling { scroll-snap-type: none; }
.problems-carousel.dragging .problem-slide { pointer-events: none; }
.problems-carousel::-webkit-scrollbar { display: none; }

.problem-slide {
  flex: 0 0 auto; width: 320px; scroll-snap-align: start; position: relative; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: var(--space-4); transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.problem-slide::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px;
  background: linear-gradient(100deg, var(--steel-2) 0 44%, var(--accent) 50% 100%);
}
.problem-slide:hover { border-color: var(--border-strong); transform: translateY(-4px); box-shadow: var(--shadow); }
.problem-slide h3 { font-size: 18.5px; margin-bottom: 10px; }
.problem-slide p { color: var(--text-muted); font-size: 15px; }

.problem-tags {
  display: flex; align-items: center; gap: 6px; margin-bottom: var(--space-3);
  font-family: ui-monospace, 'SF Mono', 'Cascadia Code', monospace;
  font-size: 10px; letter-spacing: .08em; text-transform: uppercase;
}
.problem-tags .t-before { color: var(--steel-2); }
.problem-tags .t-arrow { color: var(--border-strong); }
.problem-tags .t-after { color: var(--accent); font-weight: 700; }

/* Before/after placeholder slider — real photos drop in later */
.ba-slider {
  position: relative; width: 100%; height: 160px; margin-bottom: var(--space-3);
  border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border);
  cursor: ew-resize; touch-action: pan-y; --ba-pos: 50%; user-select: none;
}
.ba-panel { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.ba-panel span {
  font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-muted); background: rgba(11,14,19,.55); padding: 4px 9px; border-radius: 6px; white-space: nowrap;
}
.ba-panel-after { background: repeating-linear-gradient(135deg, rgba(245,166,35,.12), rgba(245,166,35,.12) 10px, var(--surface-2) 10px, var(--surface-2) 20px); }
.ba-panel-before {
  width: var(--ba-pos); overflow: hidden; border-right: 2px solid var(--accent);
  background: repeating-linear-gradient(135deg, var(--surface-2), var(--surface-2) 10px, var(--surface) 10px, var(--surface) 20px);
}
.ba-handle { position: absolute; top: 0; bottom: 0; left: var(--ba-pos); width: 0; pointer-events: none; }
.ba-handle-grip {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: var(--on-accent);
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow);
}
.ba-handle-grip svg { width: 16px; height: 16px; }

.photo-placeholder {
  width: 100%; height: 160px; margin-bottom: var(--space-3);
  border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border);
  background: repeating-linear-gradient(135deg, var(--surface-2), var(--surface-2) 10px, var(--surface) 10px, var(--surface) 20px);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  color: var(--text-muted);
}
.photo-placeholder svg { width: 28px; height: 28px; opacity: .5; }
.photo-placeholder span { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: .06em; }

.problems-nav { display: flex; justify-content: flex-end; gap: 10px; margin-top: var(--space-3); }
.carousel-arrow {
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; color: var(--steel-1);
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.carousel-arrow:hover { border-color: var(--accent); color: var(--accent); background: rgba(245,166,35,.08); }
.carousel-arrow:disabled { opacity: .3; pointer-events: none; }

/* ============ Materials ============ */
.materials-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-2); }
.material {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: var(--space-3); transition: border-color .25s ease;
}
.material:hover { border-color: #38445A; }
.material h3 { font-size: 16.5px; color: var(--accent); margin-bottom: 8px; }
.material p { font-size: 13.5px; color: var(--text-muted); }
.material-premium { border-color: rgba(245,166,35,.35); background: linear-gradient(160deg, var(--surface), rgba(245,166,35,.05)); }

/* ============ Segments ============ */
.segment-group-label {
  grid-column: 1 / -1;
  font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--accent); border-bottom: 1px solid var(--border); padding-bottom: var(--space-2);
  margin-top: var(--space-4);
}
.segment-group-label:first-child { margin-top: 0; }
.segment { padding: var(--space-3); border-left: 2px solid var(--border); transition: border-color .25s ease; }
.segment:hover { border-left-color: var(--accent); }
.segment .icon-lg { color: var(--accent); margin-bottom: var(--space-2); }
.segment h3 { font-size: 17.5px; margin-bottom: 8px; }
.segment p { color: var(--text-muted); font-size: 14.5px; }
.segments-note { margin-top: var(--space-4); color: var(--text-muted); font-size: 14.5px; font-style: italic; }

/* ============ Toys ============ */
.toys-banner {
  background: linear-gradient(150deg, var(--surface), rgba(245,166,35,.08));
  border: 1px solid rgba(245,166,35,.3); border-radius: var(--radius);
  padding: var(--space-5);
}
.toys-banner h2 { font-size: clamp(24px, 3vw, 34px); letter-spacing: -0.02em; margin-bottom: 12px; }
.toys-desc { color: var(--text-muted); max-width: 62ch; font-size: 16.5px; }
.toys-steps {
  display: flex; flex-wrap: wrap; gap: var(--space-2); list-style: none;
  counter-reset: tstep; margin: var(--space-4) 0;
}
.toys-steps li {
  counter-increment: tstep; display: flex; align-items: center; gap: 10px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 100px;
  padding: 10px 20px 10px 12px; font-weight: 600; font-size: 14.5px;
}
.toys-steps li::before {
  content: counter(tstep); flex-shrink: 0;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent); color: var(--on-accent);
  font-size: 13px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}

/* ============ Pricing ============ */
.pricing-badge {
  display: inline-block; margin-top: 14px; padding: 5px 14px; border-radius: 100px;
  font-size: 12.5px; font-weight: 600; letter-spacing: .04em;
  color: var(--steel-1); background: var(--surface-2); border: 1px dashed var(--steel-2);
}
.pricing-wrap { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: var(--space-3); align-items: start; }
.pricing-table {
  width: 100%; border-collapse: separate; border-spacing: 0;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
}
.pricing-table td { padding: 18px 24px; border-bottom: 1px solid var(--border); font-size: 15.5px; }
.pricing-table tr:last-child td { border-bottom: none; }
.pricing-table td:last-child { text-align: right; font-weight: 700; color: var(--steel-1); white-space: nowrap; font-variant-numeric: tabular-nums; }
.pricing-table tr:hover td { background: rgba(255,255,255,.02); }

.pricing-sub {
  background: linear-gradient(160deg, var(--surface), rgba(245,166,35,.06));
  border: 1px solid rgba(245,166,35,.3); border-radius: var(--radius); padding: var(--space-4);
  display: flex; flex-direction: column; justify-content: center; height: 100%;
}
.pricing-sub > p { color: var(--text-muted); font-size: 14.5px; margin-bottom: var(--space-2); }

.snap-guide { margin-bottom: var(--space-3); padding-bottom: var(--space-3); border-bottom: 1px solid var(--border); }
.snap-guide h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); margin-bottom: var(--space-2); }
.snap-steps { display: flex; flex-direction: column; gap: 8px; list-style: none; }
.snap-steps li { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: var(--steel-1); line-height: 1.4; }
.snap-num {
  flex-shrink: 0; width: 20px; height: 20px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 11px; font-weight: 700; color: var(--accent);
}

.pricing-cta-row { display: flex; flex-direction: column; gap: 8px; }
.pricing-cta-row .btn { width: 100%; }

/* ============ FAQ ============ */
.faq-list { display: flex; flex-direction: column; gap: var(--space-2); }
.faq-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color .25s ease;
}
.faq-item[open] { border-color: #38445A; }
.faq-item summary {
  padding: 20px 56px 20px 24px; font-weight: 600; font-size: 16px; cursor: pointer;
  list-style: none; position: relative; min-height: 48px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: ""; position: absolute; right: 24px; top: 50%; width: 10px; height: 10px;
  border-right: 2px solid var(--text-muted); border-bottom: 2px solid var(--text-muted);
  transform: translateY(-70%) rotate(45deg); transition: transform .25s ease;
}
.faq-item[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.faq-item p { padding: 0 24px 22px; color: var(--text-muted); font-size: 15px; max-width: 70ch; }

/* ============ About ============ */
.about-wrap { display: grid; grid-template-columns: 1fr 2.6fr; gap: var(--space-5); align-items: center; }
.about-logo img { width: 100%; max-width: 240px; border-radius: var(--radius); box-shadow: var(--shadow); }
.about-body h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: var(--space-2); }
.about-body p { color: var(--text-muted); margin-bottom: var(--space-2); max-width: 62ch; }

/* ============ Contact ============ */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-2); }
.contact-card {
  display: block; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: var(--space-3); transition: border-color .25s ease, transform .25s ease;
}
a.contact-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.contact-card .icon-lg { color: var(--accent); margin-bottom: var(--space-2); }
.contact-card h3 { font-size: 16.5px; margin-bottom: 5px; }
.contact-card p { color: var(--text-muted); font-size: 13.5px; margin-bottom: 10px; }
.contact-value { font-size: 14.5px; font-weight: 600; color: var(--steel-1); word-break: break-all; }

.social-row { margin-top: var(--space-4); border-top: 1px solid var(--border); padding-top: var(--space-4); }
.social-row h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: var(--space-2); }
.social-links { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.social-links a {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 11px 18px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); font-size: 14.5px; font-weight: 600; color: var(--steel-1);
  transition: border-color .2s ease, color .2s ease, transform .2s ease; min-height: 44px;
}
.social-links a:hover { border-color: var(--accent); color: var(--text); transform: translateY(-2px); }
.social-links .icon { color: var(--accent); }

/* ============ Footer ============ */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-alt); padding: var(--space-6) 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--space-5); padding-bottom: var(--space-5); }
.footer-brand p { color: var(--text-muted); font-size: 14px; margin-top: var(--space-2); }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: var(--space-2); }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { color: var(--text-muted); font-size: 14.5px; transition: color .2s ease; }
.footer-nav a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding: var(--space-3); text-align: center; }
.footer-bottom p { color: var(--text-muted); font-size: 13.5px; }

/* ============ Sticky messenger FAB ============ */
.fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 200;
  display: flex; flex-direction: column; align-items: flex-end; gap: 12px;
  transition: opacity .25s ease, transform .25s ease;
}
.fab-hidden { opacity: 0; transform: translateY(16px); pointer-events: none; }
.fab-toggle {
  width: 58px; height: 58px; border-radius: 50%; background: var(--accent); color: var(--on-accent);
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-lg);
  transition: background .2s ease;
}
.fab-toggle:hover { background: var(--accent-strong); }
.fab-icon-close { display: none; }
.fab.open .fab-icon-msg { display: none; }
.fab.open .fab-icon-close { display: block; }
.fab-options {
  display: flex; flex-direction: column; gap: 10px; align-items: flex-end;
  opacity: 0; transform: translateY(10px); pointer-events: none; transition: opacity .2s ease, transform .2s ease;
}
.fab.open .fab-options { opacity: 1; transform: translateY(0); pointer-events: auto; }
.fab-option {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 100px;
  font-size: 13.5px; font-weight: 600; box-shadow: var(--shadow); white-space: nowrap;
}
.fab-tg { background: var(--tg-blue); color: var(--tg-on); }
.fab-tg:hover { background: var(--tg-blue-strong); }
.fab-wa { background: var(--wa-green); color: var(--wa-on); }
.fab-wa:hover { background: var(--wa-green-strong); }

@media (max-width: 480px) {
  .fab { right: 14px; bottom: 14px; }
  .fab-toggle { width: 52px; height: 52px; }
}

/* ============ Reveal animation ============ */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; transition-duration: .01ms !important; }
}

/* ============ Responsive ============ */
/* Nav collapses to a hamburger dropdown only on narrower/tablet screens.
   Above this breakpoint the header has enough room (widened header-inner +
   tightened nav/lang/CTA sizing + a real Armenian web font) to keep the full
   nav inline even in Armenian, the widest language. */
@media (max-width: 1200px) {
  .main-nav { display: none; }
  .main-nav {
    display: none; position: fixed; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 2px; padding: var(--space-2) var(--space-3) var(--space-3);
    background: rgba(11, 14, 19, .97); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border); z-index: 99;
    max-height: calc(100vh - 72px); overflow-y: auto;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 14px 16px; font-size: 16px; }
  .nav-toggle { display: flex; }
}

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .materials-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .equip-featured { grid-template-columns: 1fr; gap: 0; }
  .equip-featured-body { padding: var(--space-4); }
  .equip-featured-img { min-height: 260px; }
}

@media (max-width: 640px) {
  .header-cta { display: none; }
}

@media (max-width: 860px) {
  .problems-nav { display: none; }
}

@media (max-width: 480px) {
  .problem-slide { width: 84vw; }
}

@media (max-width: 700px) {
  .grid-3, .grid-2, .materials-grid, .process-steps { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .pricing-wrap { grid-template-columns: 1fr; }
  .about-wrap { grid-template-columns: 1fr; }
  .about-logo { display: flex; justify-content: center; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--space-4); }
  .section { padding: var(--space-6) 0; }
  .pricing-table td { padding: 15px 16px; font-size: 14px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .header-inner { gap: 12px; }
  .brand-name { display: none; }
  .brand-mark { width: 36px; height: 36px; }
  .lang-switcher button { width: 38px; }
  .header-actions { gap: 10px; }
  .nav-toggle { padding: 8px 6px; }
}