/* iPlate landing — modern, light, fitness-tech */

:root {
  --green: #16a34a;
  --green-dark: #15803d;
  --green-light: #dcfce7;
  --bg: #ffffff;
  --bg-alt: #f7f9f7;
  --text: #0f172a;
  --text-dim: #64748b;
  --border: #e5e7eb;
  --radius: 14px;
  --radius-lg: 22px;
  --max-w: 1100px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px rgba(15, 23, 42, .06);
  --shadow-lg: 0 4px 8px rgba(15, 23, 42, .04), 0 24px 48px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
               Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

h1, h2, h3, h4 { line-height: 1.2; margin: 0; letter-spacing: -.02em; }
h1 { font-size: clamp(36px, 6vw, 64px); font-weight: 800; }
h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; margin-bottom: 8px; }
h3 { font-size: 20px; font-weight: 700; }
h4 { font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); margin-bottom: 12px; }

.dim { color: var(--text-dim); }
.small { font-size: 14px; }

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
}
.nav__links {
  display: flex;
  gap: 28px;
  font-size: 15px;
  color: var(--text-dim);
}
.nav__links a:hover { color: var(--text); }

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -.01em;
}
.logo__dot { color: var(--green); }
.logo__mark {
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  position: relative;
}
.logo__mark::before, .logo__mark::after {
  content: "";
  position: absolute;
  background: white;
  border-radius: 1px;
}
.logo__mark::before { left: 50%; top: 25%; bottom: 25%; width: 2px; transform: translateX(-50%); }
.logo__mark::after  { top: 50%; left: 25%; right: 25%; height: 2px; transform: translateY(-50%); }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background-color .12s ease;
  white-space: nowrap;
}
.btn--primary {
  background: var(--green);
  color: white;
  box-shadow: 0 1px 2px rgba(0,0,0,.05), 0 8px 20px rgba(22,163,74,.25);
}
.btn--primary:hover { background: var(--green-dark); transform: translateY(-1px); }
.btn--ghost {
  background: white;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost:hover { border-color: var(--text); }
.btn--lg { padding: 16px 28px; font-size: 16px; }
.btn--sm { padding: 8px 16px; font-size: 14px; }
.btn--full { width: 100%; }

/* HERO */
.hero {
  padding: 80px 0 60px;
  background: linear-gradient(180deg, var(--green-light) 0%, transparent 70%);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero__copy h1 { margin: 16px 0 18px; }
.lead {
  font-size: 19px;
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 0 28px;
}
.hero__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero__perks {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  color: var(--text-dim);
  font-size: 15px;
}
.hero__perks li { display: flex; align-items: center; gap: 6px; }

.badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--green-light);
  color: var(--green-dark);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}
.badge--alt { background: white; color: var(--green-dark); border: 1px solid var(--green-light); }

/* PHONE MOCKUP */
.hero__art { display: flex; justify-content: center; }
.phone {
  width: 320px;
  background: #1f2937;
  border-radius: 36px;
  padding: 12px;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.phone__notch {
  position: absolute;
  top: 18px; left: 50%;
  transform: translateX(-50%);
  width: 100px; height: 22px;
  background: #0f172a;
  border-radius: 0 0 14px 14px;
}
.phone__screen {
  background: #e8f5e9;
  border-radius: 26px;
  padding: 36px 14px 14px;
  min-height: 420px;
  font-size: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.msg {
  border-radius: 14px;
  padding: 10px 14px;
  max-width: 85%;
  line-height: 1.4;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.msg--user { background: #c8e6c9; align-self: flex-end; }
.msg--bot  { background: white;    align-self: flex-start; }
.msg .dim { font-size: 13px; color: #6b7280; }

/* SECTIONS */
.section {
  padding: 80px 0;
}
.section--alt { background: var(--bg-alt); }
.section__lead {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 620px;
  margin: 12px 0 40px;
}

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}
.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.card__icon {
  font-size: 28px;
  margin-bottom: 12px;
  display: inline-flex;
  width: 48px; height: 48px;
  align-items: center; justify-content: center;
  background: var(--green-light);
  border-radius: 12px;
}
.card h3 { margin-bottom: 6px; }
.card p { color: var(--text-dim); margin: 0; font-size: 15px; }

/* TRAINERS */
.trainers__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.features {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.features li {
  padding-left: 28px;
  position: relative;
  font-size: 16px;
  line-height: 1.5;
}
.features li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  width: 22px; height: 22px;
  background: var(--green);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
}
.trainers__card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.trainers__quote p { font-size: 18px; line-height: 1.5; margin: 16px 0 0; }
.quote__head { display: flex; align-items: center; gap: 14px; }
.avatar {
  width: 48px; height: 48px;
  background: var(--green-light);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
}

/* PRICING */
.pricing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 40px;
}
.plan {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
}
.plan--featured {
  border-color: var(--green);
  box-shadow: var(--shadow-lg);
  transform: scale(1.02);
}
.plan--free { background: var(--bg-alt); }
.plan__tag {
  position: absolute;
  top: -10px; left: 50%;
  transform: translateX(-50%);
  background: var(--green);
  color: white;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: .05em;
}
.plan__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.plan__amount { font-size: 36px; font-weight: 800; letter-spacing: -.02em; }
.plan__period { color: var(--text-dim); font-size: 15px; }
.plan__features {
  list-style: none;
  padding: 0; margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 15px;
  flex: 1;
}

/* FAQ */
.faq {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 760px;
}
.faq details {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color .12s ease;
}
.faq details[open] { border-color: var(--green); }
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 20px;
  color: var(--green);
  transition: transform .12s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 12px 0 0; color: var(--text-dim); font-size: 15px; line-height: 1.55; }

/* CTA */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
  color: white;
  text-align: center;
}
.cta h2 { color: white; }
.cta .lead { color: rgba(255,255,255,.85); margin: 16px auto 28px; }
.cta .btn--primary {
  background: white;
  color: var(--green-dark);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.cta .btn--primary:hover { background: #f3f4f6; }

/* FOOTER */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer__grid a {
  display: block;
  color: var(--text-dim);
  padding: 4px 0;
}
.footer__grid a:hover { color: var(--text); }
.footer__legal {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding-top: 24px;
}

/* DOC PAGES (offer, privacy) */
.doc {
  max-width: 760px;
}
.doc h1 {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 8px;
}
.doc h2 {
  font-size: 22px;
  margin: 32px 0 12px;
}
.doc p, .doc ul, .doc ol {
  font-size: 16px;
  line-height: 1.7;
  color: #1f2937;
  margin: 0 0 14px;
}
.doc ul, .doc ol {
  padding-left: 22px;
}
.doc ul li, .doc ol li {
  margin: 6px 0;
}
.doc code {
  background: var(--bg-alt);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px;
}
.doc a {
  color: var(--green-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.doc a:hover { color: var(--green); }
.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 14px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.doc-table th, .doc-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
.doc-table th {
  background: var(--bg-alt);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-dim);
}
.doc-table tr:last-child td { border-bottom: none; }

/* RESPONSIVE */
@media (max-width: 880px) {
  .nav__links { display: none; }
  .hero { padding: 56px 0 40px; }
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .trainers__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .section { padding: 56px 0; }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .plan--featured { transform: none; }
  .phone { width: 280px; }
}

@media (max-width: 480px) {
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; }
  .footer__grid { grid-template-columns: 1fr; }
}