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

:root {
  --navy:       #1e3a5f;
  --navy-dark:  #152d4a;
  --navy-light: #2a4f7c;
  --teal:       #0d9488;
  --teal-light: #14b8a8;
  --teal-bg:    #f0fdfa;
  --gray-50:    #f9fafb;
  --gray-100:   #f3f4f6;
  --gray-200:   #e5e7eb;
  --gray-400:   #9ca3af;
  --gray-500:   #6b7280;
  --gray-600:   #4b5563;
  --gray-800:   #1f2937;
  --white:      #ffffff;
  --font:       'Inter', system-ui, -apple-system, sans-serif;
  --radius-sm:  8px;
  --radius:     12px;
  --radius-lg:  20px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow:     0 4px 12px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);
  --shadow-lg:  0 16px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s, transform .15s, box-shadow .15s;
  border: none;
  white-space: nowrap;
}
.btn:hover { opacity: .88; transform: translateY(-1px); }
.btn:active { transform: translateY(0); opacity: 1; }

.btn-sm   { padding: 8px 18px;  font-size: .8125rem; }
.btn-lg   { padding: 14px 28px; font-size: 1rem; }

.btn-primary {
  background: var(--teal);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(13,148,136,.3);
}
.btn-primary:hover { box-shadow: 0 6px 20px rgba(13,148,136,.4); }

.btn-ghost {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--gray-200);
}

.btn-white {
  background: var(--white);
  color: var(--navy);
  box-shadow: var(--shadow);
}

/* ── Nav ──────────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-100);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
}

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

.nav-logo-img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: cover;
}

.nav-logo-text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -.02em;
}

/* ── Hero ─────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 80px 0 100px;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  background: rgba(13,148,136,.2);
  color: var(--teal-light);
  border: 1px solid rgba(13,148,136,.35);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,.75);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 460px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.btn-ghost.btn-lg {
  color: rgba(255,255,255,.85);
  border-color: rgba(255,255,255,.25);
}
.btn-ghost.btn-lg:hover { background: rgba(255,255,255,.08); }

.hero-disclaimer {
  font-size: .8rem;
  color: rgba(255,255,255,.45);
}

/* Phone mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-frame {
  width: 240px;
  background: rgba(255,255,255,.08);
  border: 1.5px solid rgba(255,255,255,.15);
  border-radius: 36px;
  padding: 16px;
  box-shadow: 0 32px 80px rgba(0,0,0,.3);
}

.phone-screen {
  background: var(--white);
  border-radius: 24px;
  overflow: hidden;
  min-height: 380px;
}

.phone-mockup-header {
  background: var(--navy);
  padding: 12px 16px 10px;
  display: flex;
  gap: 5px;
  align-items: center;
}

.phone-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,.3);
}

.phone-mockup-body {
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
}

.mockup-logo {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.mockup-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mockup-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
}

.mockup-sub {
  font-size: .8rem;
  color: var(--gray-500);
  font-weight: 500;
}

.mockup-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-top: 8px;
}

.chip {
  background: var(--teal-bg);
  color: var(--teal);
  border: 1px solid rgba(13,148,136,.2);
  border-radius: 100px;
  padding: 4px 12px;
  font-size: .75rem;
  font-weight: 600;
}

/* ── Problem / Stats ─────────────────────────────────────────────────── */
.problem {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-100);
  padding: 64px 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.stat-number {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--teal);
  letter-spacing: -.04em;
  line-height: 1;
  margin-bottom: 10px;
}

.stat-label {
  font-size: .875rem;
  color: var(--gray-600);
  line-height: 1.5;
}

.problem-cta-text {
  text-align: center;
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.problem-cta-text strong { color: var(--navy); }

/* ── Features ────────────────────────────────────────────────────────── */
.features {
  padding: 96px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header--left {
  text-align: left;
  margin-bottom: 20px;
}

.section-eyebrow {
  font-size: .8rem;
  font-weight: 700;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -.03em;
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-title--light { color: var(--white); }

.section-sub {
  font-size: 1rem;
  color: var(--gray-500);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-sub--light { color: rgba(255,255,255,.7); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, transform .2s;
}

.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--teal-bg);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: .9rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* ── About ───────────────────────────────────────────────────────────── */
.about {
  background: var(--gray-50);
  border-top: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
  padding: 96px 0;
}

.about-inner {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 64px;
  align-items: start;
}

.about-photo-wrap {
  position: sticky;
  top: 96px;
}

.about-photo {
  width: 100%;
  max-width: 320px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 1 / 1;
}

.about-credentials {
  font-size: .9rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: 20px;
}

.about-bio {
  font-size: .95rem;
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 16px;
}

.about-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
}

.about-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--teal);
  transition: opacity .15s;
}

.about-link:hover { opacity: .7; }

/* ── Install ─────────────────────────────────────────────────────────── */
.install {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 96px 0;
}

.install-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

.install-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
}

.install-icon {
  width: 56px;
  height: 56px;
  background: rgba(13,148,136,.25);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.install-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}

.install-steps {
  list-style: none;
  counter-reset: steps;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.install-steps li {
  counter-increment: steps;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: .9rem;
  color: rgba(255,255,255,.8);
  line-height: 1.5;
}

.install-steps li::before {
  content: counter(steps);
  min-width: 24px;
  height: 24px;
  background: var(--teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 700;
  color: var(--white);
  flex-shrink: 0;
  margin-top: 1px;
}

.install-steps strong { color: var(--white); }

.install-icon-inline {
  font-size: 1.1em;
  vertical-align: middle;
}

.install-cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.install-note {
  font-size: .8rem;
  color: rgba(255,255,255,.45);
}

/* ── Footer ──────────────────────────────────────────────────────────── */
.footer {
  background: var(--navy-dark);
  padding: 48px 0;
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  object-fit: cover;
  opacity: .85;
}

.footer-brand-name {
  font-size: .95rem;
  font-weight: 700;
  color: rgba(255,255,255,.7);
}

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

.footer-links a {
  font-size: .85rem;
  color: rgba(255,255,255,.5);
  font-weight: 500;
  transition: color .15s;
}

.footer-links a:hover { color: rgba(255,255,255,.85); }

.footer-disclaimer {
  font-size: .78rem;
  color: rgba(255,255,255,.35);
  max-width: 640px;
  line-height: 1.6;
}

.footer-copy {
  font-size: .78rem;
  color: rgba(255,255,255,.25);
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero-content { order: 1; }
  .hero-visual  { order: 2; }
  .hero-ctas { justify-content: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }

  .stat-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .feature-grid { grid-template-columns: 1fr; }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-photo-wrap {
    position: static;
    display: flex;
    justify-content: center;
  }
  .about-photo { max-width: 240px; }
  .section-header--left { text-align: center; }
  .about-links { align-items: center; }

  .install-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .hero { padding: 60px 0 72px; }
  .features, .about, .install { padding: 72px 0; }
  .phone-frame { width: 200px; }
  .phone-screen { min-height: 320px; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .btn-lg { width: 100%; max-width: 280px; }
}