:root {
  --navy: #0a1128;
  --navy-soft: #16255c;
  --blue: #2563eb;
  --indigo: #4f46e5;
  --teal: #14b8a6;
  --cyan: #06b6d4;
  --purple: #7c3aed;
  --orange: #f97316;
  --red: #ef4444;
  --pink: #ec4899;
  --green: #16a34a;
  --ink: #0f1b3c;
  --muted: #5b6785;
  --bg: #f6f8fc;
  --card: #ffffff;
  --border: #e6eaf5;

  --grad-brand: linear-gradient(90deg, var(--indigo) 0%, var(--blue) 55%, var(--teal) 100%);
  --shadow-sm: 0 1px 2px rgba(15, 27, 60, 0.06), 0 1px 3px rgba(15, 27, 60, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 27, 60, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 27, 60, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.grad-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(246, 248, 252, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

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

.brand-mark {
  width: 34px;
  height: 34px;
}
.brand-mark.small { width: 28px; height: 28px; }

.brand-word {
  font-size: 20px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.brand-word.small { font-size: 17px; }

.nav-links {
  display: flex;
  gap: 28px;
  font-weight: 600;
  font-size: 15px;
  color: var(--muted);
}
.nav-links a:hover { color: var(--blue); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-sm { padding: 9px 18px; font-size: 14px; }

.btn-light {
  background: #ffffff;
  color: var(--navy);
  box-shadow: var(--shadow-md);
}

/* Hero */
.hero {
  padding: 72px 0 56px;
  background:
    radial-gradient(60% 60% at 15% 10%, rgba(37, 99, 235, 0.08), transparent),
    radial-gradient(50% 50% at 85% 20%, rgba(20, 184, 166, 0.10), transparent);
  text-align: center;
}

.hero-logo {
  width: 108px;
  height: 108px;
  margin-bottom: 8px;
}

.hero-word {
  font-size: 56px;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--navy);
  margin: 0 0 6px;
}

.hero-tagline {
  font-size: 22px;
  color: var(--ink);
  margin: 0 0 14px;
  font-weight: 500;
}
.hero-tagline strong { color: var(--blue); }

.hero-sub {
  max-width: 640px;
  margin: 0 auto 32px;
  color: var(--muted);
  font-size: 17px;
}

.play-store-badge {
  display: inline-block;
  margin-bottom: 14px;
  line-height: 0;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.play-store-badge:hover { transform: translateY(-1px); opacity: 0.92; }
.play-store-badge img { height: 56px; width: auto; }

.hero-or-divider {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 14px;
}

.inline-form {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.inline-form input[type="email"] {
  width: 320px;
  max-width: 80vw;
  padding: 13px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 15px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.inline-form input[type="email"]:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.form-note {
  min-height: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}
.form-note.is-success { color: var(--green); }
.form-note.is-error { color: var(--red); }
.form-note.light { color: rgba(255,255,255,0.85); }
.form-note.light.is-success { color: #a7f3d0; }
.form-note.light.is-error { color: #fecaca; }

/* Trust row */
.trust-row {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  margin: 44px auto 0;
  padding: 28px 0 0;
  border-top: 1px solid var(--border);
  max-width: 980px;
}

.trust-row li {
  flex: 1 1 130px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 12px;
  font-size: 12.5px;
  color: var(--muted);
}

.trust-icon svg {
  width: 30px;
  height: 30px;
}

.trust-row strong {
  font-size: 14px;
  color: var(--ink);
  margin-top: 2px;
}

/* Section shared */
.section-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--navy);
  text-align: center;
  margin: 0 0 12px;
}
.section-title.light { color: #fff; }

.section-sub {
  text-align: center;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 44px;
  font-size: 16px;
}
.section-sub.light { color: rgba(255,255,255,0.85); }

/* Features */
.features { padding: 88px 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.feature-icon svg { width: 22px; height: 22px; }

.icon-blue   { background: #e8effe; color: var(--blue); }
.icon-indigo { background: #ecebfe; color: var(--indigo); }
.icon-teal   { background: #e3faf6; color: var(--teal); }
.icon-orange { background: #fff1e6; color: var(--orange); }
.icon-purple { background: #f1eafe; color: var(--purple); }
.icon-cyan   { background: #e3f7fb; color: var(--cyan); }
.icon-pink   { background: #fde9f3; color: var(--pink); }
.icon-green  { background: #e8f8ec; color: var(--green); }

.feature-card h3 {
  font-size: 17px;
  margin: 0 0 6px;
  color: var(--ink);
}
.feature-card p {
  font-size: 14.5px;
  color: var(--muted);
  margin: 0;
}

/* Security */
.security { padding: 80px 0; background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.security-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
}
.security .section-title, .security .section-sub { text-align: left; margin-left: 0; }

.check-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--ink);
  font-weight: 500;
  font-size: 15px;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--grad-brand);
}
.check-list li::after {
  content: "";
  position: absolute;
  left: 6.5px;
  top: 7px;
  width: 8px;
  height: 4px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg);
}

.security-badge {
  display: flex;
  justify-content: center;
}
.security-logo {
  width: 220px;
  height: 220px;
  filter: drop-shadow(var(--shadow-lg));
}

/* CTA */
.cta-section {
  padding: 88px 0;
  background: linear-gradient(120deg, var(--navy) 0%, var(--navy-soft) 45%, #0f2f5c 75%, #0e5c63 130%);
  text-align: center;
}
.cta-inner .section-sub { margin-bottom: 32px; }

/* Contact */
.contact { padding: 88px 0; }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
}
.contact .section-title, .contact .section-sub { text-align: left; margin: 0 0 12px; }
.contact .section-sub { margin-bottom: 0; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.contact-form input,
.contact-form textarea {
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fbfcfe;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.contact-form .btn { align-self: flex-start; }

/* Footer */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--muted);
}
.footer-links a:hover { color: var(--blue); }

/* Legal pages */
.legal-hero {
  padding: 56px 0 32px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.legal-hero h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--navy);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.legal-hero p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

.legal-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}
.legal-content h2 {
  font-size: 21px;
  color: var(--navy);
  margin: 40px 0 12px;
  letter-spacing: -0.01em;
}
.legal-content h2:first-child { margin-top: 0; }
.legal-content h3 {
  font-size: 16.5px;
  color: var(--ink);
  margin: 24px 0 8px;
}
.legal-content p {
  color: var(--muted);
  font-size: 15.5px;
  margin: 0 0 14px;
}
.legal-content ul, .legal-content ol {
  color: var(--muted);
  font-size: 15.5px;
  margin: 0 0 14px;
  padding-left: 22px;
}
.legal-content li { margin-bottom: 6px; }
.legal-content a { color: var(--blue); font-weight: 600; }
.legal-content a:hover { text-decoration: underline; }
.legal-content strong { color: var(--ink); }
.legal-content .placeholder {
  background: #fff7e6;
  border: 1px dashed #f0b429;
  border-radius: 6px;
  padding: 1px 6px;
  color: #8a5a00;
  font-weight: 600;
  font-size: 0.95em;
}
.legal-content .callout {
  background: #eef4ff;
  border: 1px solid #d6e4ff;
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 14.5px;
  color: var(--ink);
  margin-bottom: 28px;
}
.legal-toc {
  columns: 2;
  gap: 24px;
}
.legal-toc a { font-size: 14.5px; }
.faq-item { margin-bottom: 22px; }
.faq-item h3 { margin-top: 0; }

@media (max-width: 600px) {
  .legal-toc { columns: 1; }
}

/* Responsive */
@media (max-width: 860px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .security-inner, .contact-inner { grid-template-columns: 1fr; }
  .security-badge { order: -1; }
  .nav-links { display: none; }
  .hero-word { font-size: 42px; }
}

@media (prefers-color-scheme: dark) {
  body {
    background: #0b1020;
    color: #e7ecfb;
  }
  .nav { background: rgba(11, 16, 32, 0.85); border-color: #1c2440; }
  .brand-word, .hero-word, .section-title, .feature-card h3 { color: #f1f4ff; }
  .hero-sub, .section-sub, .feature-card p, .check-list li, .trust-row strong { color: #aeb8dd; }
  .feature-card, .contact-form { background: #10162c; border-color: #1c2440; }
  .inline-form input[type="email"], .contact-form input, .contact-form textarea {
    background: #10162c; border-color: #232b4a; color: #e7ecfb;
  }
  .security { background: #0b1020; border-color: #1c2440; }
  .footer { border-color: #1c2440; }
  .trust-row { border-color: #1c2440; }
  .legal-hero { border-color: #1c2440; }
  .legal-hero h1, .legal-content h2, .legal-content h3 { color: #f1f4ff; }
  .legal-hero p, .legal-content p, .legal-content ul, .legal-content ol { color: #aeb8dd; }
  .legal-content .callout { background: #10162c; border-color: #232b4a; color: #d7deff; }
  .legal-content .placeholder { background: #2a220a; border-color: #7a5400; color: #f0c14b; }
}