/* Strážci pramenů — sdílené styly pro landing + privacy
   Barvy odpovídají aplikaci (kPrimary #1B5E6E, kAccent #4CAF82). */

:root {
  --primary: #1B5E6E;
  --primary-dark: #0D3340;
  --accent: #4CAF82;
  --accent-light: #C8E6D5;
  --bg: #F4F8F9;
  --text-primary: #1A2932;
  --text-secondary: #5A6C75;
  --divider: #DCE5E8;
  --shadow: 0 4px 16px rgba(13, 51, 64, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

a:hover {
  border-bottom-color: var(--primary);
}

/* ──────────── HERO ──────────── */

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 80px 20px 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 30%,
    rgba(76, 175, 130, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero .tagline {
  font-size: 1.25rem;
  font-weight: 400;
  opacity: 0.92;
  margin-bottom: 12px;
}

.hero .badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 20px;
}

/* ──────────── FEATURES ──────────── */

.features {
  max-width: 960px;
  margin: -50px auto 60px;
  padding: 40px 20px;
  background: white;
  border-radius: 20px;
  box-shadow: var(--shadow);
  position: relative;
  z-index: 2;
}

.features h2 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 32px;
  color: var(--primary);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.feature {
  text-align: center;
  padding: 16px;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  display: block;
}

.feature h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.feature p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ──────────── SUBSCRIBE ──────────── */

.subscribe {
  max-width: 600px;
  margin: 0 auto 80px;
  padding: 40px 30px;
  background: var(--accent-light);
  border-radius: 20px;
  text-align: center;
}

.subscribe h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--primary-dark);
}

.subscribe p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.subscribe-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.subscribe-form input[type="email"] {
  flex: 1;
  min-width: 200px;
  padding: 14px 18px;
  border: 2px solid white;
  border-radius: 999px;
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.subscribe-form input[type="email"]:focus {
  border-color: var(--primary);
}

.subscribe-form button {
  background: var(--primary);
  color: white;
  border: none;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, transform 0.1s;
}

.subscribe-form button:hover {
  background: var(--primary-dark);
}

.subscribe-form button:active {
  transform: scale(0.97);
}

.subscribe-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

/* ──────────── FOOTER ──────────── */

footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  padding: 32px 20px;
  font-size: 0.9rem;
}

footer a {
  color: white;
  border-bottom-color: rgba(255, 255, 255, 0.3);
}

footer a:hover {
  border-bottom-color: white;
}

footer .footer-links {
  margin-bottom: 12px;
}

footer .footer-links a {
  margin: 0 12px;
}

/* ──────────── PRIVACY PAGE ──────────── */

.privacy {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px;
  background: white;
}

.privacy h1 {
  font-size: 2.25rem;
  margin-bottom: 8px;
  color: var(--primary);
}

.privacy .effective {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--divider);
}

.privacy h2 {
  font-size: 1.5rem;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent-light);
}

.privacy h3 {
  font-size: 1.15rem;
  margin-top: 24px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.privacy p {
  margin-bottom: 16px;
  color: var(--text-primary);
}

.privacy ul {
  margin: 12px 0 16px 24px;
}

.privacy ul li {
  margin-bottom: 8px;
}

.privacy strong {
  color: var(--primary-dark);
}

.privacy .note {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 8px 8px 0;
}

.privacy table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  background: var(--bg);
  border-radius: 8px;
  overflow: hidden;
}

.privacy table th,
.privacy table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--divider);
}

.privacy table th {
  background: var(--primary);
  color: white;
  font-weight: 700;
}

.privacy table tr:last-child td {
  border-bottom: none;
}

.privacy .back-link {
  display: inline-block;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

/* ──────────── RESPONSIVE ──────────── */

@media (max-width: 600px) {
  .hero {
    padding: 60px 16px 80px;
  }
  .hero h1 {
    font-size: 2.25rem;
  }
  .hero .tagline {
    font-size: 1.1rem;
  }
  .features {
    margin-top: -30px;
    padding: 24px 16px;
  }
  .subscribe {
    padding: 30px 20px;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .subscribe-form input[type="email"],
  .subscribe-form button {
    width: 100%;
  }
  .privacy {
    padding: 40px 16px;
  }
  .privacy h1 {
    font-size: 1.75rem;
  }
}