/* =============================================
   BreathFly — home.css
   Landing page styles
   ============================================= */

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 24px 100px;
}

/* Ambient orbs */
.hero-atmosphere {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: -1;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
}

.orb--teal {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(74, 144, 164, 0.3) 0%, transparent 70%);
  top: -250px;
  right: -200px;
  animation: orb-breathe 10s var(--ease-in-out) infinite;
}

.orb--purple {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(123, 104, 238, 0.2) 0%, transparent 70%);
  bottom: -150px;
  left: -150px;
  animation: orb-breathe 10s var(--ease-in-out) infinite 3s;
}

.orb--accent {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(32, 178, 170, 0.15) 0%, transparent 70%);
  top: 35%;
  left: 15%;
  animation: orb-breathe 10s var(--ease-in-out) infinite 6s;
}

@keyframes orb-breathe {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(1.18); }
}

/* Hero content */
.hero-content {
  text-align: center;
  max-width: 820px;
  position: relative;
}

/* App icon — App Store rounded rectangle */
.app-icon-wrap {
  margin: 0 auto 3rem;
  position: relative;
  width: 140px;
  height: 140px;
}

.app-icon {
  width: 140px;
  height: 140px;
  border-radius: 26.37%;  /* iOS App Store superellipse ratio */
  overflow: hidden;
  border: 1.5px solid rgba(74, 144, 164, 0.3);
  animation: icon-breathe 8s var(--ease-in-out) infinite;
  box-shadow:
    0 0 60px rgba(74, 144, 164, 0.25),
    0 8px 32px rgba(0, 0, 0, 0.3);
  transition: box-shadow 0.4s ease, transform 0.3s var(--ease-out);
}

.app-icon:hover {
  transform: scale(1.05);
  box-shadow:
    0 0 90px rgba(74, 144, 164, 0.4),
    0 12px 40px rgba(0, 0, 0, 0.35);
}

.app-icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Outer glow rings */
.app-icon-wrap::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 26.37%;
  border: 1px solid rgba(74, 144, 164, 0.12);
  animation: icon-ring-pulse 8s var(--ease-in-out) infinite;
}

.app-icon-wrap::after {
  content: '';
  position: absolute;
  inset: -22px;
  border-radius: 26.37%;
  border: 1px solid rgba(74, 144, 164, 0.06);
  animation: icon-ring-pulse 8s var(--ease-in-out) infinite 0.3s;
}

@keyframes icon-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

@keyframes icon-ring-pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.05); opacity: 1; }
}

.hero-fly {
  -webkit-text-fill-color: #00FFFF;
  color: #00FFFF;
}

.hero-title {
  font-size: clamp(3.2rem, 9vw, 5.5rem);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: -0.04em;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0 auto 2.5rem;
  line-height: 1.9;
  max-width: 580px;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
}

/* Trust badges */
.trust-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.9rem;
  background: rgba(74, 144, 164, 0.08);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  color: var(--primary);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: border-color var(--transition), background var(--transition);
}

.trust-badge:hover {
  border-color: var(--border-active);
  background: rgba(74, 144, 164, 0.14);
}

/* --- Goals section --- */
.goals {
  padding: 100px 24px;
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.goals-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.goal-card {
  padding: 2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.goal-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.goal-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}

.goal-card:hover::after {
  transform: scaleX(1);
}

.goal-icon {
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 1.35rem;
  margin: 0 auto 1.25rem;
  transition: transform var(--transition);
}

.goal-card:hover .goal-icon {
  transform: scale(1.1);
}

.goal-icon--stress {
  background: rgba(107, 142, 159, 0.12);
  color: #6B8E9F;
  border: 1px solid rgba(107, 142, 159, 0.25);
}

.goal-icon--sleep {
  background: rgba(123, 104, 238, 0.12);
  color: #7B68EE;
  border: 1px solid rgba(123, 104, 238, 0.25);
}

.goal-icon--focus {
  background: rgba(74, 144, 164, 0.12);
  color: #4A90A4;
  border: 1px solid rgba(74, 144, 164, 0.25);
}

.goal-icon--energy {
  background: rgba(244, 164, 96, 0.12);
  color: #F4A460;
  border: 1px solid rgba(244, 164, 96, 0.25);
}

.goal-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.goal-card p {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

/* --- Research / Science section --- */
.research {
  padding: 100px 24px;
  position: relative;
}

.patterns-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.pattern-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.pattern-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.pattern-card:hover::before {
  transform: scaleX(1);
}

.pattern-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.pattern-source {
  font-size: 0.65rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.pattern-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.35rem;
}

.pattern-tagline {
  color: var(--primary-light);
  font-size: 0.8rem;
  margin-bottom: 0.85rem;
  font-style: italic;
}

.pattern-card p:last-child {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.7;
}

.more-patterns {
  text-align: center;
  margin-top: 2.5rem;
  padding: 1.5rem 2rem;
  background: var(--bg-card);
  border: 1px dashed var(--border-hover);
  border-radius: var(--radius-lg);
}

.more-patterns p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* --- Features section --- */
.features {
  padding: 100px 24px;
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feature-card {
  padding: 2.5rem 2rem;
  background: var(--bg-void);
  transition: background var(--transition);
  position: relative;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--glow-primary) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:hover {
  background: var(--bg-deep);
}

.feature-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  position: relative;
  z-index: 1;
}

.feature-card:hover .feature-icon {
  background: var(--primary);
  color: var(--bg-void);
  box-shadow: var(--glow-md);
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
  position: relative;
  z-index: 1;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

/* --- CTA section --- */
.cta-section {
  padding: 100px 24px;
  text-align: center;
}

.cta-box {
  max-width: 640px;
  margin: 0 auto;
  padding: 3.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
}

.cta-box h2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.cta-box p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 0.95rem;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .patterns-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .hero {
    padding: 100px 20px 60px;
  }

  .app-icon-wrap {
    width: 110px;
    height: 110px;
  }

  .app-icon {
    width: 110px;
    height: 110px;
  }

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

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

  .trust-row {
    flex-direction: column;
    align-items: center;
  }

  .cta-box {
    padding: 2.5rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .goals-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.8rem;
  }
}