/* Custom Modular Stylesheet for Nishan Rowjee's Portfolio */

/* ----------------------------------------------------
   1. DESIGN SYSTEM & VARIABLE DEFINITIONS
---------------------------------------------------- */
:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-glass-nav: rgba(11, 15, 25, 0.8);

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);

  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-hover: rgba(255, 255, 255, 0.16);

  --shadow-glow: 0 10px 30px -10px rgba(6, 182, 212, 0.15);
  --shadow-card-hover: 0 20px 40px -15px rgba(139, 92, 246, 0.25);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ----------------------------------------------------
   2. GLOBAL STYLES & RESET
---------------------------------------------------- */
html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
  position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: #1f2937;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #374151;
}

/* Typography Selection */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Utility Gradients & Badges */
.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient-accent {
  background: var(--accent-gradient);
}

.glow-on-hover {
  position: relative;
  transition: var(--transition-smooth);
}

.glow-on-hover:hover {
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
}

/* ----------------------------------------------------
   3. NAVIGATION (GLASSMORPHIC NAVBAR)
---------------------------------------------------- */
.custom-navbar {
  background: var(--bg-glass-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glass);
  padding: 0.8rem 0;
  transition: var(--transition-smooth);
}

.custom-navbar .navbar-brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}

.custom-navbar .nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  margin: 0 0.2rem;
  position: relative;
  transition: var(--transition-smooth);
}

.custom-navbar .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: var(--transition-smooth);
  transform: translateX(-50%);
}

.custom-navbar .nav-link:hover {
  color: var(--text-primary) !important;
}

.custom-navbar .nav-link:hover::after,
.custom-navbar .nav-link.active::after {
  width: 80%;
}

/* ----------------------------------------------------
   4. HERO SECTION
---------------------------------------------------- */
.hero-section {
  min-height: 75vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 40px 0;
}

/* Hero Decorative Backdrops */
.hero-decor-1 {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  top: 10%;
  right: 15%;
  z-index: -1;
  pointer-events: none;
}

.hero-decor-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
  bottom: 10%;
  left: 10%;
  z-index: -1;
  pointer-events: none;
}

.hero-badge {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.5rem;
}

.hero-badge .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% {
    transform: scale(0.95);
    opacity: 0.5;
  }

  50% {
    transform: scale(1.1);
    opacity: 1;
  }

  100% {
    transform: scale(0.95);
    opacity: 0.5;
  }
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
}

.hero-lead {
  color: var(--text-secondary);
  font-size: 1.15rem;
  line-height: 1.6;
  max-width: 600px;
  margin-bottom: 2rem;
}

/* Custom Buttons */
.btn-primary-custom {
  background: var(--accent-gradient);
  border: none;
  color: #fff !important;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 8px;
  transition: var(--transition-smooth);
}

.btn-primary-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px rgba(139, 92, 246, 0.5);
}

.btn-secondary-custom {
  background: transparent;
  border: 1px solid var(--border-glass);
  color: var(--text-primary) !important;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 8px;
  transition: var(--transition-smooth);
}

.btn-secondary-custom:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-glass-hover);
  transform: translateY(-2px);
}

/* ----------------------------------------------------
   5. PORTFOLIO / PROJECTS SECTION
---------------------------------------------------- */
.section-title-area {
  margin-bottom: 4rem;
  position: relative;
}

.section-subtitle {
  color: var(--accent-cyan);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: block;
}

.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.glass-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-glass-hover);
  box-shadow: var(--shadow-card-hover);
}

.card-img-wrapper {
  position: relative;
  overflow: hidden;
  height: 200px;
  background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-glass);
}

.card-img-wrapper .project-icon {
  font-size: 3rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: var(--transition-smooth);
}

.glass-card:hover .project-icon {
  transform: scale(1.1) rotate(5deg);
}

.card-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(11, 15, 25, 0.75);
  backdrop-filter: blur(4px);
  border: 1px solid var(--border-glass);
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.glass-card .card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.glass-card .card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  transition: var(--transition-smooth);
}

.glass-card:hover .card-title {
  color: var(--accent-cyan);
}

.glass-card .card-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 1.5rem;
}

.tech-pill {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.glass-card:hover .tech-pill {
  border-color: rgba(6, 182, 212, 0.2);
  color: var(--text-primary);
}

.card-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-smooth);
}

.card-link:hover {
  color: var(--accent-cyan);
}

.card-link i {
  font-size: 0.8rem;
  transition: var(--transition-smooth);
}

.card-link:hover i {
  transform: translateX(4px);
}

/* ----------------------------------------------------
   6. CONTACT & FOOTER SECTION
---------------------------------------------------- */
.contact-section {
  padding: 100px 0 60px 0;
  position: relative;
}

.contact-card {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.03) 0%, rgba(6, 182, 212, 0.03) 100%);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  padding: 4rem 2rem;
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 2rem;
}

.social-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.social-btn:hover {
  color: #fff;
  transform: translateY(-5px);
}

.social-btn.github:hover {
  background: #24292e;
  border-color: #24292e;
  box-shadow: 0 10px 20px -5px rgba(36, 41, 46, 0.6);
}

.social-btn.linkedin:hover {
  background: #0077b5;
  border-color: #0077b5;
  box-shadow: 0 10px 20px -5px rgba(0, 119, 181, 0.6);
}

.social-btn.email:hover {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 20px -5px rgba(6, 182, 212, 0.6);
}

.footer-divider {
  border-top: 1px solid var(--border-glass);
  margin: 4rem 0 2rem 0;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ----------------------------------------------------
   7. CORE SKILLS GRID
---------------------------------------------------- */
.skills-category-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  padding: 2rem;
  height: 100%;
  transition: var(--transition-smooth);
}

.skills-category-card:hover {
  border-color: var(--border-glass-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.skills-icon {
  font-size: 1.75rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  display: inline-block;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px;
}

.skill-tag {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  text-align: center;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.skill-tag:hover {
  background: rgba(139, 92, 246, 0.08);
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--text-primary);
  transform: scale(1.05);
}

/* ----------------------------------------------------
   8. GLASSMORPHIC CASE STUDY MODALS
---------------------------------------------------- */
.glass-modal .modal-content {
  background: rgba(11, 15, 25, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  color: var(--text-primary);
}

.glass-modal .modal-header {
  border-bottom: 1px solid var(--border-glass);
  padding: 1.5rem;
}

.glass-modal .modal-footer {
  border-top: 1px solid var(--border-glass);
  padding: 1.5rem;
}

.glass-modal .btn-close {
  filter: invert(1);
  opacity: 0.7;
  transition: var(--transition-smooth);
}

.glass-modal .btn-close:hover {
  opacity: 1;
}

.modal-section-title {
  color: var(--accent-cyan);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.modal-detail-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 1.25rem;
  height: 100%;
}