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

:root {
  --primary: #1a1a2e;
  --accent: #0f3460;
  --highlight: #e94560;
  --bg: #fafafa;
  --text: #2c2c2c;
  --text-light: #666;
  --white: #ffffff;
  --border: #e0e0e0;
  --radius: 8px;
  --max-width: 1100px;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Layout ──────────────────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header / Nav ────────────────────────────────────────────── */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.nav-logo span {
  color: var(--highlight);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: var(--transition);
}

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white);
  padding: 100px 24px;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.15;
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-cta {
  display: inline-block;
  background: var(--highlight);
  color: var(--white);
  padding: 14px 36px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition), transform var(--transition);
}

.hero-cta:hover {
  background: #d63651;
  transform: translateY(-2px);
}

/* ── Section ─────────────────────────────────────────────────── */
.section {
  padding: 80px 24px;
}

.section--alt {
  background: var(--white);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 48px;
}

/* ── Cards ───────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ── App Showcase ────────────────────────────────────────────── */
.app-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.app-card-header {
  background: linear-gradient(135deg, #F58A1F 0%, #e07010 100%);
  padding: 40px 32px;
  text-align: center;
  color: var(--white);
}

.app-card-header h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.app-card-header p {
  font-size: 1rem;
  opacity: 0.9;
}

.app-card-body {
  padding: 32px;
  flex: 1;
}

.app-card-body p {
  color: var(--text-light);
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 20px;
}

.feature-list li {
  font-size: 0.9rem;
  color: var(--text);
  padding-left: 20px;
  position: relative;
}

.feature-list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--highlight);
  font-weight: 700;
}

.app-card-footer {
  padding: 20px 32px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  align-items: center;
}

.badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  background: var(--primary);
  color: var(--white);
}

.badge--android { background: #3ddc84; color: #1a1a2e; }
.badge--ios { background: #007aff; color: var(--white); }
.badge--soon { background: var(--border); color: var(--text-light); }

/* ── Contact Form ────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--text-light);
  margin-bottom: 24px;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text);
  font-size: 0.95rem;
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.btn {
  display: inline-block;
  background: var(--highlight);
  color: var(--white);
  padding: 12px 32px;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition);
  text-align: center;
}

.btn:hover { background: #d63651; }

/* ── Values / About Grid ────────────────────────────────────── */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.value-item {
  text-align: center;
  padding: 24px;
}

.value-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.value-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.value-item p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ── About Content ───────────────────────────────────────────── */
.about-content {
  max-width: 750px;
  margin: 0 auto;
}

.about-content p {
  color: var(--text-light);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

/* ── Legal / Privacy ─────────────────────────────────────────── */
.legal-content {
  max-width: 750px;
  margin: 0 auto;
}

.legal-content h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 32px 0 12px;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p,
.legal-content li {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.legal-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal-content a {
  color: var(--accent);
  text-decoration: underline;
}

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding: 48px 24px 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  max-width: var(--max-width);
  margin: 0 auto 32px;
}

.footer-brand h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.footer-brand h3 span {
  color: var(--highlight);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.5;
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
  }

  .nav-links.open { display: flex; }

  .hero { padding: 64px 24px; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }

  .section { padding: 56px 24px; }
  .section-title { font-size: 1.6rem; }

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

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

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

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }

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