/* project.css - Shared Premium Styles for All Project Pages */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Outfit:wght@400;600;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

:root {
  --bg-color: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent-color: #3b82f6; /* Will be overwritten dynamically per project if needed */
  --accent-glow: rgba(59, 130, 246, 0.2);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.08);
  --border-radius-lg: 24px;
  --border-radius-md: 16px;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Base Top Navigation */
.project-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  transition: transform 0.3s ease;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.back-btn:hover {
  color: var(--accent-color);
  transform: translateX(-4px);
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(0,0,0,0.05);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}

.action-btn.primary {
  background: var(--accent-color);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.action-btn:hover {
  transform: translateY(-2px);
  background: rgba(0,0,0,0.08);
}

.action-btn.primary:hover {
  background: var(--text-primary);
  color: var(--bg-color);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.2);
}

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Sections */
section {
  padding: 100px 5%;
  max-width: 1400px;
  margin: 0 auto;
}

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

.hero-bg-glow {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  filter: blur(80px);
  opacity: 0.5;
  z-index: -1;
  pointer-events: none;
}

.app-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.app-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.app-tagline {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--text-secondary);
  max-width: 800px;
  margin-bottom: 40px;
  font-weight: 400;
}

.hero-visual {
  width: 100%;
  max-width: 1000px;
  margin-top: 60px;
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1), 0 0 0 1px var(--glass-border);
  transform: perspective(1000px) rotateX(5deg);
  transition: transform 0.6s ease;
}

.hero-visual:hover {
  transform: perspective(1000px) rotateX(0deg) translateY(-10px);
}

.hero-visual img {
  width: 100%;
  display: block;
  object-fit: cover;
}

/* Overview Section */
.overview-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
}
@media(min-width: 768px) {
    .overview-content {
      grid-template-columns: 1fr 1fr;
      max-width: 1200px;
    }
}
.overview-title {
  font-family: 'Outfit', sans-serif;
  font-size: 2.5rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.overview-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 32px;
  transition: var(--transition-smooth);
}

.feature-card:hover {
  background: var(--bg-surface-elevated);
  transform: translateY(-5px);
  border-color: var(--accent-color);
}

.feature-icon {
  font-size: 2rem;
  color: var(--accent-color);
  margin-bottom: 20px;
  background: rgba(0,0,0,0.03);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

/* Screenshots Showcase (Staggered Grid) */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}
.showcase-item {
  position: relative;
  background: var(--bg-surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1), 0 0 0 1px var(--glass-border);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}
.showcase-item:hover {
  transform: translateY(-8px);
  z-index: 10;
  border-color: var(--accent-color);
}
.showcase-item img {
  width: 100%;
  aspect-ratio: 9/19;
  object-fit: cover;
  display: block;
}
.showcase-caption {
  padding: 24px;
}
.showcase-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.showcase-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Tech Stack */
.tech-container {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-top: 40px;
}

.tech-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: var(--transition-smooth);
}
.tech-pill:hover {
  background: var(--bg-surface-elevated);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

/* Challenges/UI Experience */
.challenges-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.challenge-item {
  background: var(--bg-surface);
  border-left: 4px solid var(--accent-color);
  padding: 24px;
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
}
.challenge-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.challenge-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Footer Section */
.project-footer {
  text-align: center;
  padding: 100px 5%;
  border-top: 1px solid var(--glass-border);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.02));
}

.project-footer h2 {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 30px;
}

.hero-actions, .footer-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  /* Layout & Navigation */
  section {
    padding: 60px 16px;
  }
  .hero-section {
    padding-top: 100px;
  }
  .project-nav {
    padding: 12px 16px;
  }
  .action-btn {
    padding: 8px 14px;
    font-size: 0.85rem;
  }

  /* Typography */
  .app-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
  }
  .overview-title {
    font-size: 2rem;
  }
  
  /* Grids */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .showcase-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
  }
  
  /* Image & Caption Scaling */
  .showcase-item {
    border-radius: var(--border-radius-md);
  }
  .showcase-caption {
    padding: 12px;
  }
  .showcase-title {
    font-size: 0.95rem;
    line-height: 1.3;
    margin-bottom: 6px;
  }
  .showcase-desc {
    font-size: 0.8rem;
    line-height: 1.4;
  }

  /* Tech Stack Pills */
  .tech-container {
    gap: 8px;
  }
  .tech-pill {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  /* Footer */
  .project-footer h2 {
    font-size: 1.8rem;
  }
}