@import url("/whatsapp-float.css");

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

:root {
  --white:   #ffffff;
  --bg:      #f5f5f7;
  --mid:     #e8e8ed;
  --sub:     #6e6e73;
  --dark:    #1d1d1f;
  --black:   #000000;
  --radius:  18px;
  --max:     980px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--white);
  color: var(--dark);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--mid);
  height: 48px;
  display: flex; align-items: center; justify-content: center;
}

.nav-inner {
  max-width: var(--max);
  width: 100%; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}

.nav-logo {
  font-size: 17px; font-weight: 600; color: var(--dark);
  text-decoration: none; letter-spacing: -0.3px;
}

.nav-links {
  display: flex; gap: 28px; list-style: none;
}

.nav-links a {
  font-size: 13px; color: var(--dark); text-decoration: none;
  opacity: 0.8; transition: opacity .2s;
}

.nav-links a:hover { opacity: 1; }

.nav-cta {
  font-size: 13px; font-weight: 500;
  background: var(--dark); color: var(--white);
  padding: 7px 16px; border-radius: 980px;
  text-decoration: none; transition: opacity .2s;
}

.nav-cta:hover { opacity: 0.8; }

.nav-menu-btn {
  display: none; background: none; border: none;
  cursor: pointer; padding: 4px; color: var(--dark);
}

.btn-primary {
  display: inline-block;
  background: var(--dark); color: var(--white);
  font-size: 17px; font-weight: 500;
  padding: 16px 32px; border-radius: 980px;
  text-decoration: none; transition: opacity .2s;
  letter-spacing: -0.01em;
}

.btn-primary:hover { opacity: 0.8; }

.page-main {
  padding: 96px 20px 72px;
}

.page-header {
  max-width: var(--max);
  margin: 0 auto 56px;
  text-align: center;
}

.page-back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; color: var(--sub);
  text-decoration: none; margin-bottom: 28px;
  transition: color .2s;
}

.page-back:hover { color: var(--dark); }

.section-eyebrow {
  font-size: 13px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--sub); margin-bottom: 14px;
}

.page-title {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700; letter-spacing: -0.03em;
  color: var(--black); line-height: 1.1;
  max-width: 640px; margin: 0 auto;
}

.page-sub {
  font-size: 17px; color: var(--sub);
  margin-top: 16px; line-height: 1.6;
  max-width: 560px; margin-left: auto; margin-right: auto;
}

.features-list {
  max-width: var(--max);
  margin: 0 auto;
  display: flex; flex-direction: column; gap: 64px;
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

.feature-content { order: 2; }

.feature-shot {
  order: 1;
  display: flex; justify-content: center;
}

.feature-frames {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: flex-end;
}

.feature-frames .feature-frame {
  width: min(200px, 42vw);
}

.feature-num {
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--sub); margin-bottom: 10px;
}

.feature-title {
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 700; letter-spacing: -0.02em;
  color: var(--black); line-height: 1.2;
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 16px; color: var(--sub);
  line-height: 1.65;
}

.feature-desc + .feature-desc { margin-top: 12px; }

.feature-points {
  list-style: none; margin-top: 16px;
  display: flex; flex-direction: column; gap: 10px;
}

.feature-points li {
  font-size: 15px; color: var(--sub);
  display: flex; align-items: baseline; gap: 10px;
  line-height: 1.5;
}

.feature-points li::before {
  content: "✓";
  font-size: 13px; font-weight: 600;
  color: var(--dark);
  flex-shrink: 0;
}

.feature-frame {
  width: min(280px, 78vw);
  border: none;
  border-radius: 28px;
  overflow: hidden;
  background: var(--dark);
  padding: 10px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.12);
  cursor: zoom-in;
  transition: transform .2s, box-shadow .2s;
}

.feature-frame:hover {
  transform: scale(1.02);
  box-shadow: 0 28px 72px rgba(0,0,0,0.16);
}

.feature-frame:focus-visible {
  outline: 2px solid var(--dark);
  outline-offset: 4px;
}

.feature-frame img {
  display: block; width: 100%; height: auto;
  border-radius: 20px;
  pointer-events: none;
}

body.lightbox-open { overflow: hidden; }

.lightbox {
  display: none;
  position: fixed; inset: 0; z-index: 300;
  align-items: center; justify-content: center;
  padding: 20px;
}

.lightbox.is-open { display: flex; }

.lightbox-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.88);
  border: none; cursor: zoom-out;
}

.lightbox-inner {
  position: relative; z-index: 1;
  max-width: min(420px, 92vw);
  max-height: 92vh;
  animation: lightbox-in .2s ease;
}

.lightbox-inner img {
  display: block;
  width: 100%; height: auto;
  max-height: 92vh;
  border-radius: 24px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.4);
}

.lightbox-close {
  position: absolute; top: -12px; right: -12px;
  width: 40px; height: 40px;
  background: var(--white); color: var(--dark);
  border: none; border-radius: 50%;
  font-size: 24px; line-height: 1;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: opacity .2s;
}

.lightbox-close:hover { opacity: 0.8; }

@keyframes lightbox-in {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

.devices-section {
  max-width: var(--max);
  margin: 72px auto 0;
  padding: 48px 24px;
  background: var(--bg);
  border: 1px solid var(--mid);
  border-radius: var(--radius);
}

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

.devices-title {
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700; letter-spacing: -0.02em;
  color: var(--black); line-height: 1.15;
  max-width: 520px; margin: 0 auto;
}

.devices-sub {
  font-size: 16px; color: var(--sub);
  line-height: 1.6; max-width: 560px;
  margin: 14px auto 36px;
}

.devices-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 40px;
}

.device-card {
  background: var(--white);
  border: 1px solid var(--mid);
  border-radius: 14px;
  padding: 24px 20px;
  text-align: left;
}

.device-icon {
  width: 44px; height: 44px;
  background: var(--bg);
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
  color: var(--dark);
}

.device-name {
  font-size: 17px; font-weight: 600;
  letter-spacing: -0.02em; color: var(--black);
  margin-bottom: 6px;
}

.device-desc {
  font-size: 14px; color: var(--sub);
  line-height: 1.55;
}

.devices-preview {
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: center;
}

.devices-preview-item {
  display: flex; flex-direction: column;
  align-items: center; gap: 12px;
}

.devices-preview-label {
  font-size: 12px; font-weight: 500;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--sub);
}

.devices-preview-frame--wide {
  width: min(480px, 92vw);
}

.page-cta {
  max-width: var(--max);
  margin: 72px auto 0;
  padding: 40px 24px;
  background: var(--bg);
  border: 1px solid var(--mid);
  border-radius: var(--radius);
  text-align: center;
}

.page-cta h2 {
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 700; letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 12px;
}

.page-cta p {
  font-size: 16px; color: var(--sub);
  line-height: 1.6; max-width: 480px;
  margin: 0 auto 24px;
}

footer {
  background: var(--dark); color: var(--white);
  padding: 60px 24px 40px;
  margin-top: 72px;
}

.footer-inner { max-width: var(--max); margin: 0 auto; }

.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 48px; padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand { font-size: 17px; font-weight: 600; margin-bottom: 12px; }

.footer-brand-sub {
  font-size: 14px; color: rgba(255,255,255,0.45);
  line-height: 1.6; max-width: 300px;
}

.footer-col-title {
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(255,255,255,0.4); margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex; flex-direction: column; gap: 10px;
}

.footer-links a {
  font-size: 14px; color: rgba(255,255,255,0.6);
  text-decoration: none; transition: color .2s;
}

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

.footer-bottom {
  margin-top: 36px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: rgba(255,255,255,0.35);
  flex-wrap: wrap; gap: 12px;
}

.mobile-nav {
  display: none;
  position: fixed; inset: 0; z-index: 200;
}

.mobile-nav.open { display: block; }

.mobile-nav-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.4);
}

.mobile-nav-panel {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 280px;
  background: var(--white);
  padding: 64px 32px 32px;
  display: flex; flex-direction: column; gap: 8px;
}

.mobile-nav-close {
  position: absolute; top: 16px; right: 20px;
  background: none; border: none; cursor: pointer;
  font-size: 28px; color: var(--dark); line-height: 1;
}

.mobile-nav-panel a {
  font-size: 18px; color: var(--dark);
  text-decoration: none; padding: 10px 0;
  border-bottom: 1px solid var(--mid);
}

.mobile-nav-panel .btn-primary {
  font-size: 16px; text-align: center;
  margin-top: 16px; padding: 14px 24px;
}

@media (min-width: 769px) {
  .page-main { padding: 120px 24px 80px; }

  .feature-block {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .feature-block:nth-child(even) .feature-content { order: 2; }
  .feature-block:nth-child(even) .feature-shot { order: 1; }

  .feature-block:nth-child(odd) .feature-content { order: 1; }
  .feature-block:nth-child(odd) .feature-shot { order: 2; }

  .feature-frame { width: min(300px, 42vw); }

  .feature-frames .feature-frame { width: min(200px, 20vw); }
  .feature-frames .feature-frame:nth-child(2) { transform: translateY(24px); }

  .devices-grid { grid-template-columns: repeat(3, 1fr); }

  .devices-preview {
    flex-direction: row;
    justify-content: center;
    align-items: flex-end;
    gap: 40px;
  }

  .lightbox-inner { max-width: min(540px, 92vw); }
}

@media (prefers-reduced-motion: reduce) {
  .lightbox-inner { animation: none; }
  .feature-frame { transition: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-menu-btn { display: block; }

  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .features-list { gap: 48px; }
}