/* ─── Reset & Base ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font: 'Inter', system-ui, sans-serif;

  /* Colors */
  --ink:        #0a0a0f;
  --ink-2:      #3d3d4d;
  --ink-3:      #6b6b82;
  --surface:    #ffffff;
  --surface-2:  #f6f7fb;
  --border:     #e4e5ef;

  --blue:       #1a6ef5;
  --blue-soft:  #eef3fe;
  --blue-dark:  #1456c8;

  --teal:       #0ea5aa;
  --teal-soft:  #e6f9f9;

  /* Spacing */
  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  22px;
  --r-xl:  32px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Buttons ──────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--r-md);
  cursor: pointer;
  border: none;
  transition: background 0.18s, transform 0.12s, box-shadow 0.18s;
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  padding: 14px 28px;
  background: var(--blue);
  color: #fff;
  box-shadow: 0 4px 16px rgba(26, 110, 245, 0.28);
}
.btn-primary:hover {
  background: var(--blue-dark);
  box-shadow: 0 6px 22px rgba(26, 110, 245, 0.38);
}

.btn-large { padding: 16px 36px; font-size: 17px; border-radius: var(--r-lg); }

.btn-nav {
  padding: 9px 20px;
  background: var(--blue);
  color: #fff;
  font-size: 14px;
  border-radius: var(--r-sm);
  box-shadow: 0 2px 8px rgba(26, 110, 245, 0.22);
}
.btn-nav:hover { background: var(--blue-dark); }

/* ─── Nav ──────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.nav-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.3px;
}

/* ─── Badge ────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-soft);
  border: 1px solid rgba(26, 110, 245, 0.2);
  border-radius: 100px;
  padding: 5px 14px;
}

/* ─── Hero ─────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(160deg, var(--surface) 0%, #f0f5ff 100%);
  padding: 80px 24px 0;
  overflow: hidden;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
}

.hero-text { padding-bottom: 80px; }

.hero-headline {
  font-size: clamp(40px, 5vw, 62px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -2px;
  color: var(--ink);
  margin: 20px 0 24px;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.65;
  color: var(--ink-3);
  max-width: 480px;
}

.hero-cta { margin-top: 36px; }

.hero-price {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-3);
}

/* Phones */
.hero-phones {
  position: relative;
  height: 520px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.phone {
  position: absolute;
  width: 230px;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(10, 10, 20, 0.18), 0 8px 24px rgba(10, 10, 20, 0.1);
}

.phone-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 9/18;
  display: block;
}

.phone-front {
  bottom: 0;
  left: 50%;
  transform: translateX(-20%);
  z-index: 2;
  height: 440px;
}

.phone-back {
  bottom: 40px;
  left: 50%;
  transform: translateX(-88%) rotate(-6deg);
  z-index: 1;
  height: 400px;
  opacity: 0.88;
}

/* ─── Features ─────────────────────────────────────────────────────── */
.features {
  background: var(--surface);
  padding: 100px 24px;
}

.section-title {
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -1px;
  text-align: center;
}

.section-sub {
  text-align: center;
  color: var(--ink-3);
  font-size: 17px;
  max-width: 560px;
  margin: 14px auto 56px;
  line-height: 1.65;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 32px 28px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover {
  box-shadow: 0 12px 36px rgba(10, 10, 30, 0.08);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  background: var(--blue-soft);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
  letter-spacing: -0.2px;
}

.feature-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-3);
}

/* ─── Devices Section ──────────────────────────────────────────────── */
.devices-section {
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 100px 24px;
}

.devices-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.devices-text h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -1px;
  margin-bottom: 16px;
  line-height: 1.15;
}

.devices-text p {
  color: var(--ink-3);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.device-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.device-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
}

.device-list svg {
  flex-shrink: 0;
  color: var(--blue);
}

.devices-image img {
  width: 100%;
  border-radius: var(--r-xl);
  object-fit: cover;
  aspect-ratio: 4/3;
  box-shadow: 0 24px 64px rgba(10, 10, 30, 0.12);
}

/* ─── CTA Section ──────────────────────────────────────────────────── */
.cta-section {
  background: linear-gradient(150deg, #0f1728 0%, #0d2154 100%);
  padding: 100px 24px;
  text-align: center;
}

.cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.cta-icon {
  width: 80px;
  height: 80px;
  border-radius: 22px;
  margin-bottom: 28px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.cta-section h2 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
  line-height: 1.1;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 17px;
  margin-bottom: 36px;
  max-width: 480px;
}

.cta-note {
  margin-top: 16px !important;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4) !important;
  margin-bottom: 0 !important;
}

/* ─── Footer ───────────────────────────────────────────────────────── */
.footer {
  background: #07080f;
  padding: 40px 24px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  font-weight: 600;
}

.footer-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  transition: color 0.15s;
}

.footer-links a:hover { color: rgba(255, 255, 255, 0.75); }

.footer-copy {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.25);
}

/* ─── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero { padding: 60px 24px 0; }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text { padding-bottom: 40px; }

  .hero-sub { margin: 0 auto; }

  .hero-cta { display: flex; flex-direction: column; align-items: center; }

  .hero-phones {
    height: 380px;
    width: 100%;
  }

  .phone-front { height: 340px; transform: translateX(-18%); }
  .phone-back  { height: 300px; transform: translateX(-84%) rotate(-5deg); }

  .feature-grid { grid-template-columns: repeat(2, 1fr); }

  .devices-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 540px) {
  .feature-grid { grid-template-columns: 1fr; }

  .hero-phones { height: 300px; }
  .phone-front { height: 270px; width: 180px; }
  .phone-back  { height: 240px; width: 180px; }

  .footer-links { flex-direction: column; gap: 12px; }
}