/* ============ Design tokens ============ */
:root {
  --bg: #f8fbfb;
  --bg-alt: #eef5f5;
  --surface: #ffffff;
  --text: #0f2426;
  --text-muted: #4f6668;
  --border: #dbe7e8;

  /* Brand palette derived from the logo (#024751 deep teal).
     Variable names kept for compatibility with the rest of the sheet. */
  --violet-600: #024751;   /* brand deep teal — text accents, eyebrows */
  --violet-500: #0a7c86;   /* brand teal — mid gradient, borders */
  --indigo-500: #023b44;   /* darkest — gradient start */
  --lavender: #8fd3d0;     /* light teal — glows */
  --lavender-soft: rgba(2, 71, 81, 0.10);

  --gradient-brand: linear-gradient(135deg, var(--indigo-500), var(--violet-500) 60%, #17a89c);
  --shadow-soft: 0 20px 50px -12px rgba(2, 71, 81, 0.20);
  --shadow-card: 0 10px 30px -10px rgba(15, 36, 38, 0.08);

  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;

  --container: 1180px;
  --font: 'Manrope', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.65;
}

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

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

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 14px; color: var(--text-muted); }

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

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  background: var(--surface);
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 999;
}

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--violet-600);
  margin-bottom: 12px;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 12px 24px -8px rgba(2, 71, 81, 0.40);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -8px rgba(2, 71, 81, 0.50); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--surface); border-color: var(--violet-500); color: var(--violet-600); }
.btn-lg { padding: 15px 30px; font-size: 1.02rem; }
.btn-telegram svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
.inline-link { color: var(--violet-600); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.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;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 18px 0;
  transition: padding 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
  background: rgba(248, 251, 251, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.site-header.scrolled {
  padding: 10px 0;
  background: rgba(248, 251, 251, 0.92);
  box-shadow: 0 1px 0 var(--border), 0 12px 24px -18px rgba(20, 18, 31, 0.25);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.05rem;
}
.brand-mark { width: 34px; height: 34px; }
.nav-list {
  display: flex;
  gap: 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-list a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 0.2s ease;
}
.nav-list a:hover { color: var(--violet-600); }

.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.25s 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;
  padding: 100px 0 60px;
  overflow: hidden;
  text-align: center;
}
.hero-glow {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 620px;
  background:
    radial-gradient(45% 55% at 30% 20%, rgba(10, 124, 134, 0.26), transparent 70%),
    radial-gradient(40% 50% at 75% 10%, rgba(2, 71, 81, 0.20), transparent 70%),
    radial-gradient(35% 45% at 50% 45%, rgba(143, 211, 208, 0.40), transparent 70%);
  filter: blur(10px);
  z-index: 0;
}
.hero-inner { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; }
.hero-sub { font-size: 1.1rem; max-width: 620px; margin: 0 auto 30px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-media { position: relative; z-index: 1; margin-top: 60px; }
.hero-media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft), 0 0 0 1px var(--border);
  background: var(--surface);
}
.hero-media-frame img { width: 100%; }
.hero-note {
  margin: 16px 0 0;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
}
.trust-chips {
  list-style: none;
  margin: 28px auto 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.trust-chips li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  box-shadow: var(--shadow-card);
}
.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-brand);
}

/* ============ Stats row ============ */
.stats-row {
  list-style: none;
  margin: 0 0 54px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.stats-row li {
  text-align: center;
  padding: 22px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}
.stats-row strong {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}
.stats-row span { font-size: 0.86rem; font-weight: 600; color: var(--text-muted); }

/* ============ Logos strip ============ */
.logos-strip { padding: 50px 0; }
.logos-label {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 30px;
}
.logos-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 56px;
  flex-wrap: wrap;
}
.logos-row img {
  height: 34px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1) opacity(0.55);
  transition: filter 0.25s ease, transform 0.25s ease;
}
.logos-row img:hover { filter: grayscale(0) opacity(1); transform: translateY(-2px); }

/* ============ Sections ============ */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section-sub { font-size: 1.05rem; margin-top: 10px; }
.section-cta { text-align: center; margin-top: 50px; }

/* ============ Steps ============ */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  box-shadow: var(--shadow-card);
}
.step-num {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--violet-600);
  background: var(--lavender-soft);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.step p { color: var(--text); font-weight: 700; margin: 0 0 8px; font-size: 1.08rem; }
.step small { display: block; color: var(--text-muted); font-size: 0.92rem; line-height: 1.55; }
.steps-4 { grid-template-columns: repeat(4, 1fr); }
.step-when {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.step-highlight {
  border-color: rgba(10, 124, 134, 0.45);
  box-shadow: var(--shadow-soft);
}
.step-highlight .step-when { color: var(--violet-600); }

/* ============ Contractor of Record diagram ============ */
.cor-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1.15fr auto 1fr;
  align-items: center;
  gap: 14px;
  margin-bottom: 56px;
}
.cor-node {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
  text-align: center;
}
.cor-node p { margin: 0; font-size: 0.94rem; }
.cor-node-label {
  display: block;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 8px;
}
.cor-node-center {
  border-color: rgba(10, 124, 134, 0.45);
  box-shadow: var(--shadow-soft);
  padding: 32px 26px;
}
.cor-logo { width: 42px; height: 42px; margin: 0 auto 12px; }
.cor-arrow {
  position: relative;
  width: 120px;
  height: 2px;
  background: linear-gradient(90deg, var(--indigo-500), var(--violet-500));
}
.cor-arrow::before, .cor-arrow::after {
  content: "";
  position: absolute;
  top: -4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--violet-500);
}
.cor-arrow::before { left: -3px; }
.cor-arrow::after { right: -3px; }
.cor-arrow span {
  position: absolute;
  left: 50%;
  top: 10px;
  transform: translateX(-50%);
  width: 120px;
  text-align: center;
  line-height: 1.25;
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--violet-600);
}
.cor-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.cor-point {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 26px 22px;
  box-shadow: var(--shadow-card);
}
.cor-point h3 { margin-bottom: 8px; }
.cor-point p { margin: 0; }

/* ============ Compare table ============ */
.compare-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.compare {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  font-size: 0.95rem;
}
.compare th, .compare td {
  padding: 18px 20px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.compare thead th {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  background: var(--bg-alt);
  font-weight: 800;
}
.compare thead th.compare-trevi {
  color: var(--violet-600);
  display: table-cell;
}
.compare thead th.compare-trevi img { width: 20px; height: 20px; display: inline-block; vertical-align: -4px; margin-right: 8px; }
.compare tbody th { font-weight: 700; color: var(--text); width: 26%; }
.compare tbody tr:last-child th, .compare tbody tr:last-child td { border-bottom: none; }
.compare td.compare-trevi {
  background: rgba(10, 124, 134, 0.07);
  color: var(--text);
}
.compare td.compare-trevi strong { color: var(--violet-600); }
.section-cta .btn + .btn { margin-left: 12px; }

/* ============ Use case / testimonial ============ */
.use-case-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: center;
}
.use-case-media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
blockquote {
  margin: 0 0 26px;
  padding: 24px 0 0;
  border-top: 2px solid var(--border);
}
blockquote p { color: var(--text); font-size: 1.02rem; }
blockquote footer { font-weight: 700; color: var(--violet-600); margin-top: 10px; }

/* ============ Feature grid ============ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  color: #fff;
  margin-bottom: 18px;
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { margin: 0; }

/* ============ Pricing ============ */
.pricing-card {
  position: relative;
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.pricing-glow {
  position: absolute;
  inset: auto auto -40% -20%;
  width: 70%;
  height: 70%;
  background: radial-gradient(circle, rgba(10, 124, 134, 0.22), transparent 70%);
}
.pricing-amount {
  position: relative;
  z-index: 1;
  display: block;
  font-size: 5rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.pricing-amount span { font-size: 2.2rem; }
.pricing-desc { position: relative; z-index: 1; font-size: 1.05rem; margin-bottom: 24px; }
.pricing-list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: grid;
  gap: 12px;
  text-align: left;
  max-width: 360px;
  margin-inline: auto;
}
.pricing-list li {
  position: relative;
  padding-left: 28px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.96rem;
}
.pricing-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--gradient-brand);
}
.pricing-list li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  width: 6px;
  height: 3px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg);
}
.pricing-card .btn { position: relative; z-index: 1; }
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: stretch;
}
.pricing-grid .pricing-card {
  max-width: none;
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* ============ Calculator ============ */
.calc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}
.calc-card h3 { font-size: 1.5rem; margin-bottom: 20px; }
.calc-label {
  display: block;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.calc-volume {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 4px 0 14px;
}
.calc-card input[type="range"] {
  width: 100%;
  accent-color: var(--violet-500);
  cursor: pointer;
  margin: 0;
}
.calc-scale {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 6px 0 24px;
}
.calc-results {
  margin: 0 0 16px;
  display: grid;
  gap: 12px;
}
.calc-results > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 14px 16px;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
}
.calc-results dt { font-size: 0.92rem; font-weight: 600; color: var(--text-muted); }
.calc-results dd { margin: 0; font-weight: 800; font-size: 1.15rem; color: var(--text); white-space: nowrap; }
.calc-results > div:nth-child(2) dd { color: var(--violet-600); }
.calc-note { margin: auto 0 0; font-size: 0.82rem; }

/* ============ Contact / Telegram ============ */
.telegram-card-wide {
  max-width: 640px;
  margin: 0 auto;
  padding: 44px 40px;
  box-shadow: var(--shadow-soft);
}
.telegram-card-wide h3 { font-size: 1.4rem; }
.telegram-card-wide p { margin-bottom: 26px; }
.telegram-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.telegram-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  text-align: center;
}
.telegram-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  color: #fff;
}
.telegram-icon svg { width: 28px; height: 28px; }
.telegram-card h3 { margin-bottom: 8px; }
.telegram-card p { font-size: 0.95rem; margin-bottom: 20px; }

/* ============ Sticky mobile CTA ============ */
.sticky-cta {
  display: none;
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 90;
  gap: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
}
.sticky-cta .btn { flex: 1; padding: 12px 14px; font-size: 0.9rem; }

/* ============ FAQ ============ */
.faq-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 50px;
}
.faq-head { text-align: left; margin: 0; }
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--violet-600);
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { margin-top: 12px; margin-bottom: 0; }

/* ============ About ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
.about-media { display: flex; flex-direction: column; gap: 20px; }
.about-photo {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  width: 100%;
}
.coverage-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.coverage-badge {
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--violet-600);
  background: var(--lavender-soft);
  border: 1px solid rgba(2, 71, 81, 0.18);
  padding: 8px 16px;
  border-radius: 999px;
}

/* ============ Final CTA ============ */
.cta-final { padding: 90px 0 110px; }
.cta-final-inner {
  position: relative;
  overflow: hidden;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  background: var(--gradient-brand);
  color: #fff;
  padding: 64px 44px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.cta-final-inner .cta-map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
  pointer-events: none;
}
.cta-final-inner h2, .cta-final-inner p, .cta-final-inner .btn { position: relative; z-index: 1; }
.cta-final-inner h2 { color: #fff; }
.cta-final-inner p { color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; }
.cta-final-inner .btn-primary { background: #fff; color: var(--violet-600); box-shadow: 0 12px 24px -8px rgba(0,0,0,0.25); }
.cta-final-actions { position: relative; z-index: 1; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ============ Footer ============ */
.site-footer {
  background: #061f24;
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand { max-width: 520px; }
.footer-logo { width: 46px; height: 46px; margin-bottom: 14px; }
.footer-brand p { color: rgba(255, 255, 255, 0.55); font-size: 0.88rem; margin: 0 0 10px; line-height: 1.6; }
.footer-brand .footer-affil { color: rgba(255, 255, 255, 0.4); font-size: 0.82rem; margin: 0; }
.footer-links h6 { color: #fff; margin: 0 0 14px; font-size: 0.95rem; }
.footer-links ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.65); font-size: 0.92rem; transition: color 0.2s ease; }
.footer-links a:hover { color: #fff; }
.footer-bottom { padding: 24px 0; }
.footer-bottom p { color: rgba(255, 255, 255, 0.45); font-size: 0.85rem; margin: 0; }

/* ============ Scroll reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

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

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  .header-telegram { display: none; }
}

@media (max-width: 980px) {
  .use-case-grid, .about-grid, .faq-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-media { margin-top: 20px; }
  .steps, .steps-4 { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .cor-diagram {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-inline: auto;
    gap: 6px;
  }
  .cor-arrow {
    width: 2px;
    height: 56px;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--indigo-500), var(--violet-500));
  }
  .cor-arrow::before { left: -4px; top: -3px; }
  .cor-arrow::after { left: -4px; top: auto; bottom: -3px; }
  .cor-arrow span {
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 150px;
    text-align: left;
  }
  .cor-points { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav {
    position: fixed;
    inset: 72px 16px auto 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    padding: 18px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .nav.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav-list { flex-direction: column; gap: 4px; }
  .nav-list a { display: block; padding: 10px 8px; border-radius: 8px; }
  .nav-list a:hover { background: var(--bg-alt); }
  .nav-toggle { display: flex; }
  .header-actions { gap: 10px; }
  .header-actions .btn-primary { padding: 10px 16px; font-size: 0.86rem; }
  .brand { font-size: 0.95rem; white-space: nowrap; gap: 8px; }
  .brand-mark { width: 30px; height: 30px; }
  .steps, .steps-4 { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .section { padding: 70px 0; }
  .hero { padding: 70px 0 40px; }
  .cta-final-inner { padding: 44px 26px; }
  .trust-chips li { font-size: 0.8rem; padding: 7px 12px; }
  .stats-row strong { font-size: 1.8rem; }
  .calc-card { padding: 30px 22px; }
  .calc-results > div { flex-direction: column; align-items: flex-start; gap: 4px; }
  .section-cta .btn + .btn { margin-left: 0; margin-top: 12px; }
  .sticky-cta { display: flex; }
  body { padding-bottom: 76px; }
  .site-footer { padding-bottom: 8px; }
}