:root {
  color-scheme: light;
  --ink: #1c2329;
  --muted: #596169;
  --paper: #fafaf6;
  --band: #eef3ec;
  --line: #d6ddd3;
  --green: #1f8450;
  --green-dark: #17643d;
  --teal: #187380;
  --rust: #9c4b37;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

.site-header {
  align-items: center;
  background: rgba(250, 250, 246, 0.94);
  border-bottom: 1px solid var(--line);
  display: flex;
  height: 64px;
  justify-content: space-between;
  left: 0;
  padding: 0 clamp(20px, 5vw, 72px);
  position: fixed;
  right: 0;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 800;
}

nav {
  display: flex;
  gap: clamp(14px, 3vw, 28px);
  font-size: 14px;
  font-weight: 650;
}

.language-link {
  color: var(--green-dark);
}

.hero {
  min-height: 92vh;
  padding: 142px clamp(20px, 5vw, 72px) 58px;
  display: grid;
  align-items: center;
  justify-items: center;
  gap: 48px;
  text-align: center;
}

.hero-copy {
  color: var(--ink);
  max-width: 930px;
}

.eyebrow {
  color: var(--rust);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(64px, 10vw, 132px);
  line-height: 0.92;
  margin-bottom: 22px;
}

h2 {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  margin-bottom: 18px;
  max-width: 840px;
}

h3 {
  font-size: 20px;
  line-height: 1.2;
  margin-bottom: 10px;
}

.hero-subtitle {
  color: var(--muted);
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.2;
  margin-left: auto;
  margin-right: auto;
  max-width: 920px;
}

.hero-actions,
.install-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-actions {
  justify-content: center;
}

.hero-media {
  max-width: 1120px;
  width: min(100%, 1120px);
}

.hero-media img {
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 28px 90px rgba(28, 35, 41, 0.12);
  display: block;
  height: auto;
  width: 100%;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 6px;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
}

.button.primary {
  background: var(--green);
  color: var(--white);
}

.button.primary:hover {
  background: var(--green-dark);
}

.button.secondary {
  background: var(--white);
  border-color: var(--line);
  color: var(--ink);
}

.section-inner {
  margin: 0 auto;
  max-width: 1180px;
  padding: 84px clamp(20px, 5vw, 40px);
}

.band {
  background: var(--band);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.problem-grid,
.proof-grid,
.install-grid {
  display: grid;
  gap: 42px;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
}

.problem-grid > p,
.install-grid > div > p {
  color: var(--muted);
  font-size: 20px;
}

.section-heading {
  margin-bottom: 30px;
}

.steps,
.plans {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.steps article,
.plan {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 220px;
  padding: 24px;
}

.steps p,
.plan p,
.check-list {
  color: var(--muted);
}

.step-number {
  align-items: center;
  background: #e5f0df;
  border-radius: 999px;
  color: var(--green-dark);
  display: inline-flex;
  font-weight: 850;
  height: 34px;
  justify-content: center;
  margin-bottom: 22px;
  width: 34px;
}

.check-list {
  font-size: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.check-list li {
  border-top: 1px solid var(--line);
  padding: 16px 0;
}

code {
  background: #e7eeee;
  border-radius: 4px;
  color: var(--teal);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  padding: 2px 5px;
}

.pricing {
  background: var(--paper);
}

.register {
  padding-top: 0;
}

.register-panel {
  align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.7fr);
  padding: clamp(24px, 5vw, 44px);
}

.register-panel p,
.register-actions p {
  color: var(--muted);
  font-size: 18px;
}

.register-actions {
  align-items: flex-start;
  display: grid;
  gap: 14px;
}

.success-page {
  padding-top: 150px;
}

.contact-line a,
.site-footer a {
  color: var(--green-dark);
  font-weight: 750;
}

.plan {
  display: flex;
  flex-direction: column;
}

.plan.featured {
  border-color: var(--green);
  box-shadow: 0 0 0 2px rgba(31, 132, 80, 0.12);
}

.price {
  color: var(--ink);
  font-size: 38px;
  font-weight: 850;
  margin-bottom: 8px;
}

.price span {
  color: var(--muted);
  font-size: 17px;
  font-weight: 650;
}

.plan .button {
  margin-top: auto;
}

pre {
  background: #20262c;
  border-radius: 8px;
  color: #f7f7f1;
  margin: 0;
  overflow-x: auto;
  padding: 24px;
}

pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 14px;
  gap: 10px 18px;
  justify-content: space-between;
  padding: 28px clamp(20px, 5vw, 72px);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 920px) {
  .site-header {
    position: static;
  }

  .hero {
    min-height: auto;
    padding-top: 78px;
  }

  .problem-grid,
  .proof-grid,
  .install-grid,
  .register-panel,
  .steps,
  .plans {
    grid-template-columns: 1fr;
  }

  .steps article,
  .plan {
    min-height: auto;
  }
}

@media (max-width: 560px) {
  nav {
    display: none;
  }

  .hero {
    gap: 28px;
    padding-bottom: 40px;
  }

  .hero-subtitle,
  .problem-grid > p,
  .install-grid > div > p {
    font-size: 18px;
  }

  .button {
    width: 100%;
  }
}

/* ============ CONTACT MODAL ============ */
.contact-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 100;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.contact-overlay.active {
  display: flex;
  opacity: 1;
}

.contact-modal {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  max-width: 420px;
  width: 90%;
  padding: 32px 28px;
  text-align: center;
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.contact-overlay.active .contact-modal {
  transform: scale(1);
}

.contact-modal h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--ink);
}

.contact-modal p {
  font-size: 15px;
  color: var(--muted);
  margin: 0 0 20px;
  line-height: 1.6;
}

.contact-modal .contact-email {
  display: inline-block;
  font-size: 18px;
  font-weight: 600;
  color: var(--green);
  text-decoration: none;
  padding: 10px 24px;
  border: 2px solid var(--green);
  border-radius: 8px;
  margin-bottom: 16px;
  transition: background 0.2s, color 0.2s;
}

.contact-modal .contact-email:hover {
  background: var(--green);
  color: var(--white);
}

.contact-modal .contact-close {
  display: block;
  margin: 8px auto 0;
  font-size: 14px;
  color: var(--text-4);
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px 16px;
}

.contact-modal .contact-close:hover {
  color: var(--ink);
}