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

:root {
  --bg-deep: #0c0f1a;
  --bg-card: #141829;
  --bg-card-hover: #1a1f36;
  --bg-light: #f4f5f7;
  --text-primary: #e8eaf0;
  --text-secondary: #8b90a5;
  --text-dark: #1a1f36;
  --text-dark-secondary: #555b73;
  --accent: #22d3a7;
  --accent-dim: rgba(34, 211, 167, 0.12);
  --accent-glow: rgba(34, 211, 167, 0.25);
  --warning: #f0b232;
  --border: rgba(255,255,255,0.06);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ── */
h1, h2, h3 { font-family: 'Manrope', sans-serif; font-weight: 700; line-height: 1.15; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); letter-spacing: -0.02em; }
h3 { font-size: 1.15rem; font-weight: 500; }

/* ── Layout ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%; right: -20%;
  width: 800px; height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
  opacity: 0.4;
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 720px; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero-eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.hero h1 { margin-bottom: 24px; }
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.cta-row { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-family: 'Manrope', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
}
.btn-primary:hover { box-shadow: 0 0 30px var(--accent-glow); transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--text-secondary); }

/* ── Pain section ── */
.pain {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.pain-header {
  max-width: 600px;
  margin-bottom: 56px;
}

.pain-header h2 { margin-bottom: 16px; }
.pain-header p { color: var(--text-secondary); font-size: 1.05rem; }

.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.pain-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  transition: background 0.2s;
}
.pain-card:hover { background: var(--bg-card-hover); }

.pain-icon {
  width: 40px; height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
  background: var(--accent-dim);
}

.pain-card h3 { margin-bottom: 10px; color: var(--text-primary); }
.pain-card p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.65; }

/* ── Services ── */
.services {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-deep) 0%, #0e1222 100%);
}

.section-label {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.services-header {
  max-width: 600px;
  margin-bottom: 56px;
}
.services-header h2 { margin-bottom: 16px; }
.services-header p { color: var(--text-secondary); font-size: 1.05rem; }

.service-list { display: flex; flex-direction: column; gap: 16px; }

.service-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  align-items: start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  transition: border-color 0.2s;
}
.service-item:hover { border-color: var(--accent-dim); }

.service-num {
  font-family: 'Manrope', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.35;
  line-height: 1;
  padding-top: 4px;
}

.service-item h3 { margin-bottom: 8px; font-size: 1.1rem; }
.service-item p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.65; }

/* ── Stack ── */
.stack {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.stack-header {
  max-width: 600px;
  margin-bottom: 48px;
}
.stack-header h2 { margin-bottom: 16px; }
.stack-header p { color: var(--text-secondary); font-size: 1.05rem; }

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.stack-tag {
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.stack-tag:hover { border-color: var(--accent); color: var(--accent); }

/* ── Form section ── */
.form-section {
  padding: 100px 0 120px;
}

.form-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.form-info h2 { margin-bottom: 20px; }
.form-info p { color: var(--text-secondary); font-size: 1.05rem; line-height: 1.7; margin-bottom: 32px; }

.form-promise {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-promise-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.form-promise-item::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
}

.form-card label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.form-card input,
.form-card textarea,
.form-card select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  margin-bottom: 20px;
  transition: border-color 0.2s;
  outline: none;
}

.form-card input:focus,
.form-card textarea:focus,
.form-card select:focus {
  border-color: var(--accent);
}

.form-card textarea { min-height: 100px; resize: vertical; }

.form-card select option { background: var(--bg-deep); }

.form-card .btn { width: 100%; justify-content: center; padding: 16px; font-size: 1.05rem; }

.form-note {
  text-align: center;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  opacity: 0.6;
}

/* ── Nav ── */
.topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0;
  background: rgba(12, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.topnav-inner { display: flex; justify-content: space-between; align-items: center; }
.logo {
  font-family: 'Manrope', sans-serif;
  font-weight: 700; font-size: 1.2rem;
  color: var(--text-primary); text-decoration: none;
  letter-spacing: -0.01em;
}
.topnav-links { display: flex; align-items: center; gap: 28px; }
.topnav-links a { color: var(--text-secondary); text-decoration: none; font-size: 0.88rem; font-weight: 500; transition: color 0.2s; }
.topnav-links a:hover { color: var(--text-primary); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }

/* ── Cases ── */
.cases {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.cases-header {
  max-width: 600px;
  margin-bottom: 56px;
}
.cases-header h2 { margin-bottom: 16px; }
.cases-header p { color: var(--text-secondary); font-size: 1.05rem; }

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: border-color 0.25s;
}
.case-card:hover { border-color: rgba(34, 211, 167, 0.2); }

.case-industry {
  display: inline-flex;
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.case-industry.tag-a { background: rgba(96, 165, 250, 0.12); color: #60a5fa; }
.case-industry.tag-b { background: rgba(251, 191, 36, 0.12); color: #fbbf24; }
.case-industry.tag-c { background: rgba(244, 114, 182, 0.12); color: #f472b6; }

.case-card h3 { font-size: 1.1rem; line-height: 1.35; }

.case-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.65; }

/* ── Footer ── */
footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-secondary);
  opacity: 0.5;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .form-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .service-item { grid-template-columns: 1fr; gap: 8px; }
  .service-num { font-size: 1.2rem; }
  .hero { min-height: auto; padding: 120px 0 80px; }
  .pain, .services, .stack, .cases, .form-section { padding: 64px 0; }
  .topnav-links a:not(.btn) { display: none; }
  .form-card { padding: 28px; }
}

/* ── Confirmation ── */
.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}
.form-success h3 {
  font-family: 'Manrope', sans-serif;
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 12px;
}
.form-success p { color: var(--text-secondary); }

/* ── Consent ── */
.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
}
.form-consent input[type="checkbox"] {
  width: auto;
  margin: 3px 0 0;
  flex-shrink: 0;
  accent-color: var(--accent);
}
.form-consent label {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 400;
  line-height: 1.5;
  text-transform: none;
  letter-spacing: 0;
}
.form-consent a { color: var(--accent); }

/* Honeypot: скрыт от людей, доступен ботам */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.btn[disabled] { opacity: 0.45; cursor: not-allowed; }
.btn[disabled]:hover { box-shadow: none; transform: none; }

.form-error {
  display: none;
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 8px;
  background: rgba(240, 178, 50, 0.1);
  border: 1px solid rgba(240, 178, 50, 0.3);
  color: var(--warning);
  font-size: 0.85rem;
  line-height: 1.5;
}
.form-error.visible { display: block; }