:root {
  color-scheme: only light;
  --ink: #0b1520;
  --ink-soft: #33424f;
  --muted: #64748b;
  --green: #23a455;
  --green-deep: #14833f;
  --green-soft: #e8f6ee;
  --bg: #fbfcfd;
  --line: #e6ebef;
  --radius: 18px;
  --font-head: "Sora", sans-serif;
  --font-body: "Inter", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(251, 252, 253, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.nav.scrolled { border-bottom-color: var(--line); background: rgba(251, 252, 253, 0.9); }
.nav-inner {
  max-width: 1140px; margin: 0 auto; padding: 0 24px;
  height: 72px; display: flex; align-items: center; gap: 40px;
}
.nav-logo img { height: 30px; display: block; }
.nav-links { display: flex; gap: 32px; flex: 1; justify-content: center; }
.nav-links a {
  color: var(--ink-soft); text-decoration: none; font-size: 15px; font-weight: 500;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--green-deep); }

/* ---------- Burger (mobile) ---------- */
.nav-burger {
  display: none; background: none; border: 0; cursor: pointer;
  width: 42px; height: 42px; padding: 10px; border-radius: 10px;
  flex-direction: column; justify-content: center; gap: 5px;
}
.nav-burger span {
  display: block; height: 2px; width: 100%; background: var(--ink);
  border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; font-weight: 600; white-space: nowrap;
  font-size: 15px; padding: 12px 24px; border-radius: 999px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.btn-lg { padding: 16px 34px; font-size: 16px; }
.btn-primary {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-deep) 100%);
  color: #fff;
  box-shadow: 0 6px 20px rgba(35, 164, 85, 0.28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(35, 164, 85, 0.38); }
.btn-ghost { color: var(--ink); border: 1.5px solid var(--line); background: #fff; }
.btn-ghost:hover { border-color: var(--green); color: var(--green-deep); transform: translateY(-2px); }
.btn-invert { background: #fff; color: var(--green-deep); box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18); }
.btn-invert:hover { transform: translateY(-2px); box-shadow: 0 14px 38px rgba(0, 0, 0, 0.25); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 190px 0 110px;
  background: linear-gradient(180deg, #f3f8f5 0%, var(--bg) 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
#telemetry-canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.5; }
.hero-glow {
  position: absolute; top: -280px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 620px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(35, 164, 85, 0.14), transparent);
}
.hero-inner { position: relative; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--green-deep);
  background: var(--green-soft); border: 1px solid rgba(35, 164, 85, 0.25);
  padding: 7px 16px; border-radius: 999px; margin-bottom: 26px;
}
.hero-title {
  font-family: var(--font-head); font-size: clamp(42px, 6.4vw, 76px);
  font-weight: 800; line-height: 1.05; letter-spacing: -0.03em;
}
.grad {
  background: linear-gradient(120deg, var(--green) 0%, var(--green-deep) 60%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  margin: 26px auto 0; font-size: clamp(17px, 2.2vw, 21px);
  color: var(--ink-soft); max-width: 640px;
}
.hero-cta { margin-top: 40px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-stats {
  margin-top: 84px; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; max-width: 880px; margin-left: auto; margin-right: auto;
}
.stat { text-align: center; }
.stat-num, .stat-suffix {
  font-family: var(--font-head); font-size: clamp(30px, 4vw, 44px);
  font-weight: 700; color: var(--ink); letter-spacing: -0.02em;
}
.stat-suffix { color: var(--green); }
.stat-label { display: block; margin-top: 6px; font-size: 13.5px; color: var(--muted); }

/* ---------- Sections ---------- */
.section { padding: 110px 0; }
.section-title {
  font-family: var(--font-head); font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 700; line-height: 1.12; letter-spacing: -0.02em; margin-top: 8px;
}
.section-sub { margin-top: 20px; font-size: 18px; color: var(--ink-soft); max-width: 680px; }

/* ---------- Problem ---------- */
.problem-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 30px; transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 18px 44px rgba(11, 21, 32, 0.08); }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center;
  justify-content: center; font-size: 20px; color: var(--green-deep);
  background: var(--green-soft); margin-bottom: 20px;
}
.card h3, .pcard h3, .tcard h3, .step h3 {
  font-family: var(--font-head); font-size: 19px; font-weight: 600; margin-bottom: 10px;
}
.card p, .pcard p, .tcard p, .step p { color: var(--muted); font-size: 15px; }

/* ---------- Shift / compare ---------- */
.shift { background: var(--ink); color: #fff; }
.shift .eyebrow { background: rgba(35, 164, 85, 0.14); border-color: rgba(35, 164, 85, 0.4); color: #5ed08e; }
.shift-visual { margin-top: 48px; }
.shift-visual img {
  width: 100%; display: block; border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}
.shift-visual figcaption { margin-top: 14px; text-align: center; font-size: 14px; color: rgba(255, 255, 255, 0.55); }
.compare {
  margin-top: 56px; border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius); overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
}
.compare-head, .compare-row {
  display: grid; grid-template-columns: 130px 1fr 1.2fr; gap: 20px;
  padding: 18px 28px; align-items: center;
}
.compare-head { background: rgba(255, 255, 255, 0.05); font-family: var(--font-head); }
.compare-col-label { font-size: 14px; font-weight: 600; color: rgba(255, 255, 255, 0.55); text-transform: uppercase; letter-spacing: 0.08em; }
.compare-col-occulift { color: #5ed08e; }
.compare-row { border-top: 1px solid rgba(255, 255, 255, 0.07); font-size: 15px; }
.compare-row > div:first-child { font-weight: 600; color: rgba(255, 255, 255, 0.85); }
.compare-row > div:nth-child(2) { color: rgba(255, 255, 255, 0.5); }
.compare-row > div:nth-child(3) { color: #d9f3e4; }

/* ---------- How ---------- */
.how-visual { margin-top: 48px; }
.how-visual img {
  width: 100%; display: block; border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(11, 21, 32, 0.1);
}
.how-visual figcaption { margin-top: 14px; text-align: center; font-size: 14px; color: var(--muted); }
.steps { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 30px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.step:hover { transform: translateY(-6px); box-shadow: 0 18px 44px rgba(11, 21, 32, 0.08); border-color: rgba(35, 164, 85, 0.4); }
.step-num {
  display: inline-flex; width: 38px; height: 38px; border-radius: 50%;
  align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 700; font-size: 16px;
  color: #fff; background: linear-gradient(135deg, var(--green), var(--green-deep));
  margin-bottom: 18px;
}
.promise { margin-top: 48px; text-align: center; font-size: 18px; color: var(--ink-soft); }
.promise strong { color: var(--ink); }

/* ---------- Platform ---------- */
.platform { background: #f3f7f5; }
.platform-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 30px; transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-top: 3px solid var(--green);
}
.pcard:hover { transform: translateY(-6px); box-shadow: 0 18px 44px rgba(11, 21, 32, 0.08); }

/* ---------- Trust ---------- */
.trust-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.tcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 30px; transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.tcard:hover { transform: translateY(-6px); box-shadow: 0 18px 44px rgba(11, 21, 32, 0.08); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--green-deep) 0%, var(--green) 100%);
  color: #fff;
}
.cta-inner { text-align: center; }
.cta-title {
  font-family: var(--font-head); font-size: clamp(32px, 4.6vw, 52px);
  font-weight: 700; line-height: 1.1; letter-spacing: -0.02em;
}
.cta-sub { margin: 20px 0 36px; font-size: 18px; color: rgba(255, 255, 255, 0.85); }

/* ---------- Footer ---------- */
.footer { background: var(--bg); border-top: 1px solid var(--line); padding: 56px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; flex-wrap: wrap; }
.footer-brand img { height: 28px; margin-bottom: 14px; }
.footer-brand p { color: var(--muted); font-size: 14px; }
.footer-meta { text-align: right; font-size: 14px; color: var(--muted); }
.footer-meta a { color: var(--green-deep); font-weight: 600; text-decoration: none; }
.footer-meta a:hover { text-decoration: underline; }
.footer-meta p { margin-top: 8px; }
.copyright { font-size: 13px; }

.footer-contact {
  background: none; border: 0; padding: 0; cursor: pointer;
  color: var(--green-deep); font-weight: 600; font-size: 14px; font-family: inherit;
}
.footer-contact:hover { text-decoration: underline; }

/* ---------- Contact modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 20px; background: rgba(11, 21, 32, 0.55);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; transition: opacity 0.25s ease;
}
.modal-overlay[hidden] { display: none; }
.modal-overlay.open { opacity: 1; }
.modal {
  position: relative; width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto;
  background: #fff; border-radius: var(--radius); padding: 40px;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.35);
  transform: translateY(16px) scale(0.98); transition: transform 0.25s ease;
}
.modal-overlay.open .modal { transform: none; }
.modal-close {
  position: absolute; top: 14px; right: 14px; width: 38px; height: 38px;
  background: none; border: 0; cursor: pointer; border-radius: 10px;
  font-size: 26px; line-height: 1; color: var(--muted);
}
.modal-close:hover { background: rgba(11, 21, 32, 0.06); color: var(--ink); }
.modal-title { font-family: var(--font-head); font-size: 26px; font-weight: 700; letter-spacing: -0.01em; }
.modal-sub { margin: 8px 0 24px; color: var(--muted); font-size: 15px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-field { margin-bottom: 14px; }
.form-field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.form-field label span[aria-hidden] { color: var(--green-deep); margin-left: 2px; }
.form-field input, .form-field textarea {
  width: 100%; font: inherit; font-size: 15px; color: var(--ink);
  padding: 11px 14px; border: 1px solid var(--line); border-radius: 12px;
  background: #fbfcfd; outline: none; transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-field input:focus, .form-field textarea:focus {
  border-color: var(--green-deep); box-shadow: 0 0 0 3px rgba(30, 160, 96, 0.14); background: #fff;
}
.form-field textarea { resize: vertical; min-height: 96px; }
.form-captcha input { max-width: 140px; }
#cf-website { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-error { color: #c0392b; font-size: 14px; margin-bottom: 12px; }
.form-submit { width: 100%; border: 0; cursor: pointer; font-family: inherit; }
.form-submit[disabled] { opacity: 0.6; cursor: default; }
.modal-success { text-align: center; padding: 24px 0 8px; }
.success-icon {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1ea060, #17c96f); color: #fff; font-size: 30px;
}
.modal-success .btn { margin-top: 20px; }
@media (max-width: 620px) {
  .modal { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
}

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }
.d4 { transition-delay: 0.32s; }
.d5 { transition-delay: 0.4s; }
.d6 { transition-delay: 0.48s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav-burger { display: flex; }
  .nav-inner { gap: 16px; justify-content: space-between; }
  .nav-links {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(11, 21, 32, 0.08);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 16px 24px; border-top: 1px solid var(--line); font-size: 16px; }
  .problem-grid, .steps, .platform-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 36px 24px; }
}
@media (max-width: 620px) {
  .problem-grid, .steps, .platform-grid, .trust-grid { grid-template-columns: 1fr; }
  .compare-head { display: none; }
  .compare-row {
    grid-template-columns: 1fr; gap: 6px; padding: 16px 18px; font-size: 14px;
  }
  .compare-row > div:first-child {
    font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: #5ed08e;
  }
  .compare-row > div:nth-child(2) { text-decoration: line-through; text-decoration-color: rgba(255,255,255,0.3); }
  .br-desktop { display: none; }
  .section { padding: 80px 0; }
  .hero { padding: 140px 0 72px; }
  .hero-cta .btn-lg { width: 100%; text-align: center; }
  .hero-stats { margin-top: 60px; }
  .nav-cta { padding: 10px 18px; font-size: 14px; }
  .footer-inner, .footer-meta { text-align: left; }
}