/* Caspori marketing site - light health-tech theme */

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

:root {
  --primary: #06B6D4;
  --primary-deep: #0891B2;
  --primary-soft: #67E8F9;
  --accent: #10B981;
  --accent-soft: #6EE7B7;
  --bg: #F8FAFC;
  --bg-elevated: #FFFFFF;
  --bg-tint: #ECFEFF;
  --text: #0F172A;
  --text-muted: #475569;
  --text-subtle: #64748B;
  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --shadow-soft: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.03);
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.06), 0 2px 6px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.10);
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--primary-deep); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }

img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  color: var(--text);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

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

.text-center { text-align: center; }

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--border);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.nav-logo img { width: 32px; height: 32px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 9px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.20);
}

.nav-cta:hover {
  background: var(--primary-deep);
  color: #fff !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(6, 182, 212, 0.30);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  padding: 150px 0 90px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -260px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.10) 0%, rgba(16, 185, 129, 0.05) 40%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.8rem);
  margin-bottom: 22px;
  letter-spacing: -0.03em;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 40px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 15px 32px;
  border-radius: 12px;
  font-size: 1.02rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 6px 22px rgba(6, 182, 212, 0.25);
}

.hero-cta:hover {
  background: var(--primary-deep);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(6, 182, 212, 0.34);
}

.hero-cta svg { width: 18px; height: 18px; display: inline; }

.hero-secondary {
  display: inline-block;
  margin-left: 12px;
  padding: 15px 24px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.98rem;
}

.hero-secondary:hover { color: var(--text); }

/* ===== Section shared ===== */
section { padding: 90px 0; }

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary-deep);
  margin-bottom: 14px;
  padding: 6px 14px;
  background: var(--bg-tint);
  border-radius: 999px;
}

.section-title {
  font-size: clamp(1.85rem, 3.6vw, 2.6rem);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-sub {
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto 56px;
  font-size: 1.05rem;
}

/* ===== Features (4 modules) ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 920px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  text-align: left;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary-soft);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 52px; height: 52px;
  background: var(--bg-tint);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 26px; height: 26px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  font-size: 1.18rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.6;
}

.feature-card .badge {
  position: absolute;
  top: 18px; right: 18px;
  background: var(--bg-tint);
  color: var(--primary-deep);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== How It Works ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 920px;
  margin: 0 auto;
}

.step {
  text-align: left;
  padding: 28px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.step-number {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* ===== Plans ===== */
.plans-toggle {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px;
  margin-bottom: 48px;
  font-size: 0.9rem;
}

.plans-toggle span {
  padding: 7px 16px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}

.plans-toggle span.active {
  background: var(--primary);
  color: #fff;
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.plan-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: left;
  position: relative;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.plan-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.plan-card.popular {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow);
}

.plan-card.popular::before {
  content: 'Most popular';
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 999px;
}

.plan-name {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.plan-price {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 6px;
}

.plan-price .currency {
  font-size: 1rem;
  font-weight: 600;
  vertical-align: 14px;
  margin-right: 4px;
  color: var(--text-muted);
}

.plan-price .period {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.plan-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 22px;
  min-height: 40px;
}

.plan-features {
  list-style: none;
  margin-bottom: 26px;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.93rem;
  color: var(--text);
}

.plan-features svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.plan-btn {
  display: block;
  text-align: center;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 11px 16px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.plan-btn:hover {
  background: var(--bg-tint);
  border-color: var(--primary-soft);
  color: var(--primary-deep);
}

.plan-card.popular .plan-btn {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.plan-card.popular .plan-btn:hover {
  background: var(--primary-deep);
  border-color: var(--primary-deep);
  color: #fff;
}

/* ===== API section ===== */
.api-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-tint) 100%);
}

.api-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.api-content h2 {
  font-size: clamp(1.75rem, 3.4vw, 2.4rem);
  margin-bottom: 16px;
}

.api-content p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

.api-features {
  list-style: none;
  margin-bottom: 30px;
}

.api-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  color: var(--text);
  font-size: 0.96rem;
}

.api-features svg {
  width: 18px; height: 18px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 2;
}

.api-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-deep);
  font-weight: 600;
  font-size: 0.98rem;
}

.api-link svg { width: 18px; height: 18px; }

.api-code {
  background: #0F172A;
  color: #E2E8F0;
  border-radius: var(--radius);
  padding: 28px;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
  font-size: 0.88rem;
  line-height: 1.7;
  white-space: pre;
  overflow-x: auto;
  box-shadow: var(--shadow-lg);
}

.api-code .comment { color: #64748B; }
.api-code .keyword { color: #67E8F9; }
.api-code .string { color: #6EE7B7; }

/* ===== Footer ===== */
.footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: 64px 0 28px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-top: 16px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: 10px; }

.footer-col a {
  color: var(--text);
  font-size: 0.94rem;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--primary-deep); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--text-muted);
}

.footer-bottom-links a:hover { color: var(--text); }

/* ===== Reveal animation ===== */
.animate-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Legal pages (privacy/terms) ===== */
.legal {
  max-width: 760px;
  margin: 0 auto;
  padding: 140px 24px 80px;
}

.legal h1 {
  font-size: 2.2rem;
  margin-bottom: 8px;
}

.legal .updated {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 40px;
}

.legal h2 {
  font-size: 1.35rem;
  margin: 40px 0 12px;
}

.legal h3 {
  font-size: 1.05rem;
  margin: 24px 0 8px;
  color: var(--text-muted);
}

.legal p, .legal li {
  color: var(--text);
  margin-bottom: 12px;
}

.legal ul { padding-left: 22px; margin-bottom: 16px; }

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--bg-elevated); border-bottom: 1px solid var(--border); padding: 16px 24px; }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; padding: 10px 0; }
  .nav-toggle { display: flex; }

  .features-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .plans-grid { grid-template-columns: repeat(2, 1fr); }
  .api-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 560px) {
  .plans-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 14px; }
  section { padding: 70px 0; }
  .hero { padding: 130px 0 70px; }
}