/* ───── reset & base ───── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sage:        #2D5C4D;   /* основной — глубокий тил-сейдж */
  --sage-dark:   #1F4338;
  --sage-light:  #E3EDE6;
  --accent:      #00A98F;   /* электрический мятный — хайтек */
  --accent-dark: #008870;
  --accent-glow: rgba(0,169,143,0.18);
  --sand:        #F4F5F2;   /* холодноватый off-white */
  --stone:       #6B7669;
  --text:        #1F2420;
  --text-muted:  #515953;
  --text-hint:   #828A82;
  --border:      rgba(31,36,32,0.10);
  --border-md:   rgba(31,36,32,0.20);
  --radius:      6px;
  --radius-lg:   10px;
  --shadow-sm:   0 1px 3px rgba(20,40,30,0.06);
  --shadow-md:   0 8px 28px rgba(20,40,30,0.10);
  --font:        'Inter', system-ui, sans-serif;
  --mono:        ui-monospace, 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
  --max:         1180px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background:
    linear-gradient(#FBFBF8, #FBFBF8),
    repeating-linear-gradient(0deg, transparent 0, transparent 39px, rgba(45,92,77,0.04) 40px),
    repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(45,92,77,0.04) 40px);
  background-blend-mode: normal;
}

a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; }

code, .mono { font-family: var(--mono); }

/* ───── layout ───── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ───── test/beta banner ───── */
.test-banner {
  background: #14201C;
  color: #C8D2C9;
  border-bottom: 1px solid rgba(0,169,143,0.30);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  position: relative;
  z-index: 101;
}

.test-banner .container {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 10px;
  padding-bottom: 10px;
  flex-wrap: wrap;
}

.test-banner-tag {
  background: #00A98F;
  color: #04201A;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.14em;
  padding: 3px 8px;
  border-radius: 3px;
  text-transform: uppercase;
}

.test-banner-text { color: #C8D2C9; }

/* ───── header / nav ───── */
.site-header {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.01em;
  color: var(--text);
}

.logo img { width: 36px; height: 36px; }

.logo span em {
  font-style: normal;
  color: var(--sage);
}

.logo-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--accent-dark);
  padding: 2px 6px;
  border: 1px solid var(--accent);
  border-radius: 3px;
  margin-left: 4px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent-dark); text-decoration: none; }

/* live status dot */
.live-dot {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sage-dark);
}
.live-dot::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent-glow);
  animation: livepulse 1.8s infinite;
}
@keyframes livepulse {
  0%   { box-shadow: 0 0 0 0 rgba(0,169,143,0.5); }
  70%  { box-shadow: 0 0 0 10px rgba(0,169,143,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,169,143,0); }
}

/* ───── hero ───── */
.hero {
  position: relative;
  background:
    linear-gradient(135deg, #F5F7F3 0%, #EAF0EA 60%, #DDEAE2 100%);
  padding: 100px 0 84px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero-topo {
  position: absolute;
  right: -40px;
  top: -20px;
  width: 560px;
  opacity: 0.55;
  pointer-events: none;
  mix-blend-mode: multiply;
}

.hero-content { position: relative; max-width: 700px; }

.hero-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: #fff;
  color: var(--sage-dark);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid rgba(45,92,77,0.25);
}

.hero h1 {
  font-size: 50px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 20px;
}

.hero h1 span { color: var(--sage); }
.hero h1 em {
  font-style: normal;
  color: var(--accent-dark);
  border-bottom: 3px solid var(--accent);
  padding-bottom: 2px;
}

.hero p {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 32px;
  max-width: 560px;
}

.hero-meta-line {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-hint);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: var(--font);
  transition: all 0.2s;
}

.btn-primary {
  background: var(--sage);
  color: #fff;
  position: relative;
}

.btn-primary:hover { background: var(--sage-dark); text-decoration: none; color: #fff; }

.btn-accent {
  background: var(--accent);
  color: #04201A;
  box-shadow: 0 0 0 0 var(--accent-glow);
}

.btn-accent:hover { background: var(--accent-dark); color: #fff; text-decoration: none; box-shadow: 0 0 0 4px var(--accent-glow); }

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border-md);
  color: var(--text-muted);
}

.btn-outline:hover { border-color: var(--accent); color: var(--accent-dark); text-decoration: none; }

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ───── stats strip ───── */
.stats-strip {
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.stats-inner {
  display: flex;
}

.stat-item {
  flex: 1;
  padding: 26px 24px;
  border-right: 1px solid var(--border);
  position: relative;
}

.stat-item:last-child { border-right: none; }

.stat-id {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-hint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}

.stat-num {
  font-size: 30px;
  font-weight: 700;
  color: var(--sage);
  display: block;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
  display: block;
}

/* ───── sections generic ───── */
.section { padding: 92px 0; }
.section-alt { background: #fff; }

.section-header { margin-bottom: 52px; max-width: 720px; }

.section-tag {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.section-tag::before {
  content: '';
  width: 18px;
  height: 1.5px;
  background: var(--accent);
  display: inline-block;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.15;
}

.section-header p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 620px;
  line-height: 1.65;
}

/* ───── info cards ───── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.info-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 26px 26px 28px;
  position: relative;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
  overflow: hidden;
}

.info-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
}

.section-alt .info-card { background: #FBFBF8; }

.info-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(0,169,143,0.30);
}

.info-card:hover::before { transform: scaleY(1); }

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.card-id {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-hint);
  letter-spacing: 0.08em;
}

.card-status {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent-dark);
  background: rgba(0,169,143,0.10);
  border: 1px solid rgba(0,169,143,0.25);
  padding: 2px 8px;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  background: var(--sage-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.card-icon svg { width: 22px; height: 22px; }

.info-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
  letter-spacing: -0.005em;
}

.info-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ───── facts inserts ───── */
.facts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-top: 20px;
}

.fact-block {
  border-radius: var(--radius-lg);
  padding: 34px 36px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
}

.fact-block.sage   { background: var(--sage-light); border-color: rgba(45,92,77,0.18); }
.fact-block.accent { background: rgba(0,169,143,0.08); border-color: rgba(0,169,143,0.25); }

.fact-block .fact-id {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-hint);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
  display: block;
}

.fact-block .quote {
  font-size: 38px;
  color: var(--sage);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.fact-block.accent .quote { color: var(--accent-dark); }

.fact-block p {
  font-size: 15px;
  color: var(--text);
  line-height: 1.65;
}

.fact-block .source {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-hint);
  margin-top: 16px;
  letter-spacing: 0.04em;
}

/* ───── approach section ───── */
.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.approach-text h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.approach-text p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.75;
}

.approach-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 22px;
  border-top: 1px solid var(--border);
}

.approach-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  font-size: 14px;
  color: var(--text-muted);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}

.approach-list li .step-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-dark);
  letter-spacing: 0.04em;
}

.approach-list li strong {
  color: var(--text);
  font-weight: 600;
}

.approach-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.approach-tile {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  position: relative;
}

.approach-tile .tile-id {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-hint);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.approach-tile .anum {
  font-size: 30px;
  font-weight: 700;
  color: var(--sage);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.approach-tile .alabel {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ───── contact form ───── */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.contact-info h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.contact-info p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.contact-detail svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--accent-dark); }

.form-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.form-card::before {
  content: '// FORM // ENDPOINT: /verify';
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-hint);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--border);
}

.form-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
  letter-spacing: -0.01em;
}

.form-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 26px;
  line-height: 1.6;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text);
  margin-bottom: 7px;
}

.form-group label .req { color: var(--accent-dark); margin-left: 2px; }

.form-group input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-md);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font);
  color: var(--text);
  background: #FBFBF8;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder { color: var(--text-hint); }

.form-hint {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-hint);
  margin-top: 6px;
  letter-spacing: 0.02em;
}

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--sage);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  margin-top: 8px;
  font-family: var(--font);
  letter-spacing: 0.02em;
  position: relative;
}

.form-submit:hover { background: var(--sage-dark); box-shadow: 0 0 0 4px var(--accent-glow); }
.form-submit:active { transform: scale(0.99); }
.form-submit:disabled { background: #b5beb6; cursor: not-allowed; box-shadow: none; }

.form-message {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  display: none;
  font-family: var(--mono);
  font-size: 13px;
}

.form-message.success {
  background: rgba(0,169,143,0.10);
  color: var(--sage-dark);
  border: 1px solid rgba(0,169,143,0.40);
  display: block;
}

.form-message.error {
  background: #FBEEEA;
  color: #A03C25;
  border: 1px solid #E9B5A0;
  display: block;
}

/* ───── footer ───── */
.site-footer {
  background: #14201C;
  color: #8C9890;
  padding: 60px 0 32px;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 39px, rgba(0,169,143,0.04) 40px),
    repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(0,169,143,0.04) 40px);
  pointer-events: none;
}

.site-footer .container { position: relative; }

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 13px; line-height: 1.7; color: #6C7872; max-width: 360px; }

.footer-col h4 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: #C8D2C9;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.footer-col ul a { font-size: 13px; color: #6C7872; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--accent); text-decoration: none; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  font-family: var(--mono);
  font-size: 11px;
  color: #4F5953;
  letter-spacing: 0.05em;
}

/* ───── responsive ───── */
@media (max-width: 860px) {
  .hero { padding: 64px 0 50px; }
  .hero h1 { font-size: 32px; }
  .facts-row { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr; gap: 36px; }
  .contact-wrap { grid-template-columns: 1fr; gap: 36px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .nav-links { display: none; }
  .stats-inner { flex-wrap: wrap; }
  .stat-item { min-width: 50%; border-bottom: 1px solid var(--border); }
  .stat-item:nth-child(2) { border-right: none; }
  .section-header h2 { font-size: 26px; }
  .hero-topo { width: 380px; opacity: 0.35; }
}