/* StopCoach — landing styles
   Palette: teal-green (#0f766e) primary, warm coral (#f97316) accent,
   ink (#0b1220) text, mist (#f8fafc) bg, slate (#475569) muted.
*/

:root {
  --c-primary: #0f766e;
  --c-primary-dark: #0a544f;
  --c-primary-soft: #d1fae5;
  --c-accent: #f97316;
  --c-ink: #0b1220;
  --c-text: #1f2937;
  --c-muted: #475569;
  --c-line: #e2e8f0;
  --c-mist: #f8fafc;
  --c-warn-bg: #fff7ed;
  --c-warn-border: #fed7aa;
  --c-warn-text: #7c2d12;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow-md: 0 6px 24px -8px rgba(15,23,42,.15), 0 2px 6px rgba(15,23,42,.05);
  --shadow-lg: 0 18px 50px -12px rgba(15,23,42,.18), 0 4px 14px rgba(15,23,42,.07);
  --maxw: 1180px;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--c-text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-dark); text-decoration: underline; }
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  color: var(--c-ink);
  line-height: 1.2;
  margin: 0 0 .5em;
  letter-spacing: -.01em;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; }
p { margin: 0 0 1em; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Disclaimer banner */
.banner-disclaimer {
  background: var(--c-warn-bg);
  color: var(--c-warn-text);
  font-size: 14px;
  border-bottom: 1px solid var(--c-warn-border);
  padding: 10px 0;
}
.banner-disclaimer a {
  color: var(--c-warn-text);
  font-weight: 600;
  text-decoration: underline;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--c-line);
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 70px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--c-ink);
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-mark { line-height: 0; }
.main-nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.main-nav a {
  color: var(--c-text);
  font-weight: 500;
  font-size: .95rem;
  padding: 6px 2px;
  position: relative;
}
.main-nav a:hover { color: var(--c-primary); text-decoration: none; }
.nav-cta { margin-left: 12px; }
.menu-toggle {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 40px;
  padding: 8px;
  cursor: pointer;
  margin-left: auto;
}
.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--c-ink);
  margin: 5px 0;
  transition: transform .2s;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .15s, box-shadow .2s, background .2s, color .2s;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: var(--c-primary);
  color: white;
  box-shadow: 0 6px 16px -4px rgba(15,118,110,.4);
}
.btn-primary:hover {
  background: var(--c-primary-dark);
  color: white;
  box-shadow: 0 10px 24px -6px rgba(15,118,110,.5);
}
.btn-ghost {
  background: transparent;
  color: var(--c-ink);
  border-color: var(--c-line);
}
.btn-ghost:hover { background: var(--c-mist); color: var(--c-ink); border-color: var(--c-ink); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-xl { padding: 18px 38px; font-size: 1.1rem; }

/* Eyebrow + section heads */
.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-sub {
  font-size: 1.1rem;
  color: var(--c-muted);
}

/* Hero */
.hero {
  background: linear-gradient(180deg, #f0fdfa 0%, #ffffff 100%);
  padding: 70px 0 90px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-copy .lede {
  font-size: 1.18rem;
  color: var(--c-muted);
  max-width: 540px;
  margin-bottom: 28px;
}
.hero-copy .lede strong { color: var(--c-ink); }
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}
.hero-trust {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
  font-size: .95rem;
  color: var(--c-muted);
}
.hero-trust li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  font-weight: 800;
  font-size: 13px;
  margin-right: 10px;
}

/* Hero visual */
.hero-visual {
  position: relative;
  height: 560px;
  display: flex;
  justify-content: center;
}
.phone {
  position: absolute;
  width: 260px;
  height: 540px;
  background: #0b1220;
  border-radius: 36px;
  padding: 12px;
  box-shadow: var(--shadow-lg);
  transition: transform .5s ease;
}
.phone-front {
  z-index: 2;
  transform: rotate(-4deg);
  left: 50%;
  margin-left: -130px;
  top: 0;
}
.phone-back {
  z-index: 1;
  transform: translateX(110px) rotate(6deg);
  top: 30px;
}
.phone-screen {
  width: 100%;
  height: 100%;
  background: white;
  border-radius: 26px;
  overflow: hidden;
  position: relative;
}
.phone-notch {
  position: absolute;
  top: 10px;
  left: 50%;
  width: 90px;
  height: 22px;
  background: #0b1220;
  border-radius: 0 0 14px 14px;
  transform: translateX(-50%);
  z-index: 3;
}
.floating-card {
  position: absolute;
  background: white;
  padding: 14px 18px;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .9rem;
  color: var(--c-text);
  z-index: 4;
  border: 1px solid var(--c-line);
}
.floating-card strong { color: var(--c-ink); font-size: 1.05rem; }
.floating-card span { color: var(--c-muted); font-size: .8rem; }
.floating-card .card-icon {
  font-size: 1.4rem;
  width: 38px;
  height: 38px;
  background: var(--c-mist);
  border-radius: 10px;
  display: grid;
  place-items: center;
}
.card-streak { top: 60px; left: -10px; }
.card-saved { bottom: 80px; right: -10px; }

/* Screen mocks — drawn with backgrounds, no images needed */
.screen-mock {
  width: 100%;
  height: 100%;
  position: relative;
  padding: 44px 16px 16px;
}
.screen-mock::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #f0fdfa 0%, #fff 100%);
}
.screen-chat::before {
  background:
    /* coach bubble */
    radial-gradient(circle at 18px 80px, #0f766e 0 16px, transparent 17px),
    /* user bubble */
    radial-gradient(circle at calc(100% - 18px) 160px, #fed7aa 0 16px, transparent 17px),
    linear-gradient(180deg, #f0fdfa 0%, #fff 100%);
}
.screen-chat::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 50%;
  top: 70px;
  height: 50px;
  background:
    linear-gradient(#cbd5e1, #cbd5e1) left 0 / 80% 8px no-repeat,
    linear-gradient(#cbd5e1, #cbd5e1) left 14px / 60% 8px no-repeat,
    linear-gradient(#cbd5e1, #cbd5e1) left 28px / 70% 8px no-repeat;
}
.screen-progress::before {
  background: linear-gradient(180deg, #f0fdfa 0%, #fff 100%);
}
.screen-progress::after {
  content: "";
  position: absolute;
  inset: 60px 16px 16px;
  background:
    /* big number bar */
    linear-gradient(#0f766e, #0f766e) center 0 / 60% 30px no-repeat,
    /* sub text */
    linear-gradient(#cbd5e1, #cbd5e1) center 42px / 80% 8px no-repeat,
    /* chart bars */
    linear-gradient(#0f766e, #0f766e) 0% 100% / 14px 30% no-repeat,
    linear-gradient(#0f766e, #0f766e) 18% 100% / 14px 50% no-repeat,
    linear-gradient(#14b8a6, #14b8a6) 36% 100% / 14px 65% no-repeat,
    linear-gradient(#14b8a6, #14b8a6) 54% 100% / 14px 75% no-repeat,
    linear-gradient(#2dd4bf, #2dd4bf) 72% 100% / 14px 85% no-repeat,
    linear-gradient(#2dd4bf, #2dd4bf) 90% 100% / 14px 95% no-repeat;
}
.screen-onboarding::before {
  background: linear-gradient(180deg, #fff 0%, #f0fdfa 100%);
}
.screen-onboarding::after {
  content: "";
  position: absolute;
  inset: 60px 24px 16px;
  background:
    /* heading */
    linear-gradient(#0b1220, #0b1220) 0 0 / 80% 14px no-repeat,
    /* sub */
    linear-gradient(#94a3b8, #94a3b8) 0 24px / 90% 8px no-repeat,
    linear-gradient(#94a3b8, #94a3b8) 0 38px / 70% 8px no-repeat,
    /* option cards */
    linear-gradient(#fff,#fff) 0 70px / 100% 50px no-repeat,
    linear-gradient(#fff,#fff) 0 130px / 100% 50px no-repeat,
    linear-gradient(#0f766e,#0f766e) 0 190px / 100% 50px no-repeat,
    linear-gradient(#fff,#fff) 0 250px / 100% 50px no-repeat;
  box-shadow:
    inset 0 60px 0 transparent,
    inset 0 80px 0 transparent;
}
.screen-urge::before {
  background: radial-gradient(circle at center, #d1fae5 0%, #fff 70%);
}
.screen-urge::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at center, #0f766e 0 60px, transparent 61px),
    radial-gradient(circle at center, transparent 0 80px, #d1fae5 81px, transparent 82px),
    radial-gradient(circle at center, transparent 0 100px, #99f6e4 101px, transparent 102px);
}

/* Waarom */
.waarom { padding: 90px 0; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.stat-card {
  background: var(--c-mist);
  padding: 32px 24px;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-line);
}
.stat-num {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--c-primary);
  margin-bottom: 8px;
  letter-spacing: -.02em;
}
.stat-card p { margin: 0; color: var(--c-muted); font-size: .95rem; }

/* Hoe */
.hoe { padding: 90px 0; background: var(--c-mist); }
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  counter-reset: step;
}
.steps li {
  background: white;
  padding: 36px 28px;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-sm);
  position: relative;
}
.step-num {
  width: 44px;
  height: 44px;
  background: var(--c-primary);
  color: white;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 18px;
}
.steps p { margin: 0; color: var(--c-muted); }

/* Features */
.features { padding: 90px 0; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature {
  padding: 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-line);
  background: white;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.feature-icon {
  font-size: 2rem;
  width: 56px;
  height: 56px;
  background: var(--c-primary-soft);
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}
.feature p { margin: 0; color: var(--c-muted); }

/* Screens */
.screens { padding: 90px 0; background: linear-gradient(180deg, #fff 0%, #f0fdfa 100%); }
.screens-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.screen-frame {
  margin: 0;
  text-align: center;
}
.phone-static {
  width: 100%;
  max-width: 220px;
  aspect-ratio: 9 / 19;
  background: #0b1220;
  border-radius: 30px;
  padding: 10px;
  margin: 0 auto 20px;
  position: relative;
  box-shadow: var(--shadow-md);
}
.phone-static .phone-screen {
  border-radius: 22px;
}
.phone-static .phone-notch {
  width: 70px;
  height: 18px;
  top: 8px;
}
.screen-frame figcaption {
  font-size: .92rem;
  color: var(--c-muted);
  max-width: 220px;
  margin: 0 auto;
}

/* Wetenschap */
.wetenschap { padding: 90px 0; }
.wetenschap-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
}
.checklist li {
  padding-left: 32px;
  position: relative;
  color: var(--c-text);
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  background: var(--c-primary);
  color: white;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 800;
  display: grid;
  place-items: center;
}
.science-card {
  background: var(--c-primary);
  color: white;
  padding: 40px;
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
}
.science-card blockquote { margin: 0; }
.science-card p {
  font-size: 1.25rem;
  line-height: 1.5;
  font-weight: 500;
  margin-bottom: 18px;
}
.science-card cite {
  font-style: normal;
  font-size: .9rem;
  opacity: .85;
}

/* Privacy */
.privacy { padding: 90px 0; background: var(--c-mist); }
.privacy-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 40px;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
  background: white;
  padding: 50px;
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-line);
}

/* FAQ */
.faq { padding: 90px 0; }
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}
.faq-list details {
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: 18px 24px;
  margin-bottom: 12px;
  background: white;
  transition: box-shadow .2s, border-color .2s;
}
.faq-list details[open] {
  border-color: var(--c-primary-soft);
  box-shadow: var(--shadow-sm);
}
.faq-list summary {
  font-weight: 600;
  color: var(--c-ink);
  cursor: pointer;
  list-style: none;
  padding-right: 32px;
  position: relative;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--c-primary);
  font-weight: 400;
  transition: transform .2s;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p {
  margin: 14px 0 0;
  color: var(--c-muted);
}

/* CTA final */
.cta-final {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
  color: white;
}
.cta-inner { text-align: center; max-width: 720px; margin: 0 auto; }
.cta-final h2 { color: white; }
.cta-final p { color: rgba(255,255,255,.9); font-size: 1.15rem; margin-bottom: 32px; }
.cta-final .btn-ghost {
  border-color: rgba(255,255,255,.4);
  color: white;
}
.cta-final .btn-ghost:hover {
  background: rgba(255,255,255,.1);
  border-color: white;
  color: white;
}
.cta-final .btn-primary {
  background: white;
  color: var(--c-primary);
  border-color: white;
}
.cta-final .btn-primary:hover {
  background: var(--c-mist);
  color: var(--c-primary-dark);
}
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 28px;
}
.cta-fineprint { font-size: .9rem; opacity: .8; margin: 0; }

/* Footer */
.site-footer {
  background: var(--c-ink);
  color: #cbd5e1;
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
}
.footer-grid h4 {
  color: white;
  font-size: .9rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 16px;
}
.footer-grid nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-grid a { color: #cbd5e1; font-size: .95rem; }
.footer-grid a:hover { color: white; text-decoration: none; }
.brand-footer { color: white; margin-bottom: 12px; }
.brand-footer .brand-text { color: white; }
.footer-tagline { color: #94a3b8; font-size: .95rem; margin: 0; }
.footer-help { font-size: .92rem; color: #cbd5e1; margin: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0 30px;
}
.legal {
  font-size: .82rem;
  color: #94a3b8;
  margin: 0;
  line-height: 1.6;
}
.legal strong { color: #cbd5e1; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero-visual { height: 480px; }
  .wetenschap-grid { grid-template-columns: 1fr; gap: 30px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .screens-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .privacy-grid { grid-template-columns: 1fr; text-align: center; padding: 36px; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .main-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: white;
    border-bottom: 1px solid var(--c-line);
    padding: 16px 24px;
    gap: 14px;
  }
  .main-nav.open { display: flex; }
  .nav-cta { display: none; }
  .menu-toggle { display: block; }
  .hero { padding: 50px 0 60px; }
  .hero-visual { height: 420px; }
  .phone { width: 220px; height: 460px; }
  .phone-front { margin-left: -110px; }
  .phone-back { transform: translateX(80px) rotate(6deg); }
  .card-streak { top: 30px; left: -20px; }
  .card-saved { bottom: 40px; right: -20px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .screens-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .waarom, .hoe, .features, .screens, .wetenschap, .privacy, .faq { padding: 60px 0; }
  .section-head { margin-bottom: 40px; }
}

@media (max-width: 480px) {
  .screens-grid { grid-template-columns: 1fr; }
  .phone-static { max-width: 240px; }
  .floating-card { padding: 10px 14px; font-size: .82rem; }
  .floating-card strong { font-size: .95rem; }
  .floating-card .card-icon { width: 32px; height: 32px; font-size: 1.1rem; }
}