/* ============================================
   Modern Portfolio Theme Override
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #8b5cf6;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
  --gradient-accent: linear-gradient(135deg, #6366f1, #06b6d4);
  --sidebar-bg: #0f172a;
  --sidebar-surface: rgba(255, 255, 255, 0.05);
  --surface: #f8fafc;
  --surface-card: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08), 0 4px 10px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Google Fonts Override --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- Base Styles --- */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
  color: var(--text) !important;
  background-color: var(--surface) !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Typography --- */
h1, .h1, h2, .h2, h3, .h3, h4, .h4, h5, .h5, h6, .h6 {
  font-family: 'Inter', sans-serif !important;
  text-transform: none !important;
  font-weight: 700 !important;
  color: var(--text) !important;
  letter-spacing: -0.02em;
}

h1, .h1 {
  font-weight: 900 !important;
  font-size: clamp(2.5rem, 5vw, 4rem) !important;
  line-height: 1.1 !important;
}

h2, .h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem) !important;
  position: relative;
  display: inline-block;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 3rem;
  height: 3px;
  background: var(--gradient);
  border-radius: 2px;
}

h3, .h3 {
  font-size: 1.25rem !important;
  font-weight: 600 !important;
}

p.lead {
  font-size: 1.125rem !important;
  font-weight: 400 !important;
  color: var(--text-muted) !important;
  line-height: 1.8 !important;
  max-width: 640px;
}

.subheading {
  font-family: 'Inter', sans-serif !important;
  text-transform: none !important;
  font-weight: 500 !important;
  font-size: 1.1rem !important;
  color: var(--primary) !important;
  letter-spacing: 0;
}

.text-primary {
  color: var(--primary) !important;
}

/* --- Sidebar Navigation --- */
#sideNav {
  background: var(--sidebar-bg) !important;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
}

@media (min-width: 992px) {
  #sideNav {
    background: var(--sidebar-bg) !important;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
  }

  #sideNav .navbar-brand .img-profile {
    border: 4px solid rgba(99, 102, 241, 0.3) !important;
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.2);
    transition: var(--transition);
  }

  #sideNav .navbar-brand .img-profile:hover {
    border-color: rgba(99, 102, 241, 0.6) !important;
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.35);
    transform: scale(1.05);
  }
}

#sideNav .navbar-nav .nav-item .nav-link {
  font-weight: 500 !important;
  letter-spacing: 0.02rem !important;
  text-transform: none !important;
  font-size: 0.9rem;
  padding: 0.6rem 1.5rem !important;
  color: rgba(255, 255, 255, 0.6) !important;
  transition: var(--transition);
  position: relative;
  border-radius: var(--radius-sm);
  margin: 2px 0.75rem;
}

#sideNav .navbar-nav .nav-item .nav-link:hover {
  color: rgba(255, 255, 255, 0.95) !important;
  background: var(--sidebar-surface);
}

#sideNav .navbar-nav .nav-item .nav-link.active {
  color: #fff !important;
  background: var(--gradient) !important;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

/* --- Main Content Sections --- */
section.resume-section {
  padding-top: 4rem !important;
  padding-bottom: 4rem !important;
  align-items: flex-start !important;
}

@media (min-width: 768px) {
  section.resume-section {
    min-height: auto !important;
    padding-top: 5rem !important;
    padding-bottom: 5rem !important;
  }
}

@media (min-width: 992px) {
  section.resume-section {
    padding-left: 4rem !important;
    padding-right: 4rem !important;
  }
}

/* Remove the old hr dividers */
.container-fluid > hr {
  display: none !important;
}

/* --- About Section --- */
#about h1 {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#about .subheading {
  font-size: 1.15rem !important;
  color: var(--text-muted) !important;
  font-weight: 400 !important;
}

#about .subheading a {
  color: var(--primary) !important;
  text-decoration: none;
  font-weight: 600;
  position: relative;
}

#about .subheading a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: width 0.3s ease;
}

#about .subheading a:hover::after {
  width: 100%;
}

/* --- Social Icons --- */
.social-icons .social-icon {
  background: var(--surface-card) !important;
  color: var(--text) !important;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border-radius: var(--radius-md) !important;
}

.social-icons .social-icon:hover {
  background: var(--gradient) !important;
  color: #fff !important;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
  transform: translateY(-3px);
}

.social-icons .social-icon:hover img {
  filter: brightness(10);
}

/* --- Experience & Education Cards --- */
.resume-section .d-flex.flex-column.flex-md-row {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem !important;
  margin-bottom: 1.5rem !important;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.resume-section .d-flex.flex-column.flex-md-row:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.2);
  transform: translateY(-2px);
}

.resume-section .d-flex .flex-shrink-0 .text-primary {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary) !important;
  background: rgba(99, 102, 241, 0.08);
  padding: 0.35rem 0.85rem;
  border-radius: 2rem;
  white-space: nowrap;
}

/* --- Skills Section --- */
.dev-icons {
  font-size: 2.5rem !important;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0;
}

.dev-icons .list-inline-item {
  margin: 0 !important;
}

.dev-icons .list-inline-item i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4.5rem;
  height: 4.5rem;
  font-size: 2rem;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.dev-icons .list-inline-item i:hover {
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
  transform: translateY(-3px);
}

/* --- Libraries & Projects Lists --- */
.fa-ul {
  margin-left: 0 !important;
  padding-left: 0 !important;
  list-style: none;
}

#libraries .fa-ul li,
#projects .fa-ul li {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem !important;
  margin-bottom: 0.75rem !important;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  padding-left: 1.5rem !important;
}

#libraries .fa-ul li .fa-li,
#projects .fa-ul li .fa-li {
  display: none;
}

#libraries .fa-ul li::before,
#projects .fa-ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient);
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

#libraries .fa-ul li:hover,
#projects .fa-ul li:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.2);
  transform: translateX(4px);
}

#libraries .fa-ul li a,
#projects .fa-ul li a {
  color: var(--primary) !important;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s ease;
}

#libraries .fa-ul li a:hover,
#projects .fa-ul li a:hover {
  color: var(--primary-dark) !important;
}

/* --- Awards Section --- */
.awards-list {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  align-items: start;
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
}

.award-card {
  background: var(--surface-card) !important;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg) !important;
  padding: 1.5rem !important;
  padding-left: 1.5rem !important;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  font-size: 0.95rem;
  line-height: 1.6;
  position: relative;
  overflow: hidden;
}

.award-card .fa-li {
  position: static !important;
  display: inline-block;
  margin-right: 0.5rem;
  left: auto !important;
}

.award-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.award-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: rgba(99, 102, 241, 0.2);
}

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

.award-card img {
  border-radius: var(--radius-md) !important;
  margin-top: 1rem !important;
  box-shadow: var(--shadow-md);
}

/* --- Interests Section --- */
#interests p {
  max-width: 640px;
  line-height: 1.9;
  color: var(--text-muted);
}

/* --- Scroll Reveal Animation --- */
.hidden-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hidden-section.reveal {
  opacity: 1;
  transform: translateY(0);
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--text-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- Selection Color --- */
::selection {
  background: rgba(99, 102, 241, 0.2);
  color: var(--text);
}

/* --- Button Overrides --- */
.btn-outline-primary {
  color: var(--primary) !important;
  border-color: var(--primary) !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 500;
  transition: var(--transition);
}

.btn-outline-primary:hover {
  background: var(--primary) !important;
  color: #fff !important;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.btn-outline-secondary {
  color: var(--text-muted) !important;
  border-color: var(--border) !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 500;
  transition: var(--transition);
}

.btn-outline-secondary:hover {
  background: var(--text) !important;
  border-color: var(--text) !important;
  color: #fff !important;
}

/* --- Responsive Fine-tuning --- */
@media (max-width: 991px) {
  #sideNav {
    background: var(--sidebar-bg) !important;
  }

  .awards-list {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 576px) {
  section.resume-section {
    padding-left: 1.25rem !important;
    padding-right: 1.25rem !important;
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }

  .resume-section .d-flex.flex-column.flex-md-row {
    padding: 1.25rem !important;
  }
}

/* --- Staggered card animation --- */
.resume-section.reveal .d-flex.flex-column.flex-md-row,
.resume-section.reveal .award-card,
.resume-section.reveal .fa-ul li,
.resume-section.reveal .publication-item {
  animation: fadeInUp 0.5s ease both;
}

.resume-section.reveal .d-flex:nth-child(2) { animation-delay: 0s; }
.resume-section.reveal .d-flex:nth-child(3) { animation-delay: 0.1s; }
.resume-section.reveal .d-flex:nth-child(4) { animation-delay: 0.2s; }
.resume-section.reveal .d-flex:nth-child(5) { animation-delay: 0.3s; }

.resume-section.reveal .award-card:nth-child(1) { animation-delay: 0s; }
.resume-section.reveal .award-card:nth-child(2) { animation-delay: 0.05s; }
.resume-section.reveal .award-card:nth-child(3) { animation-delay: 0.1s; }
.resume-section.reveal .award-card:nth-child(4) { animation-delay: 0.15s; }
.resume-section.reveal .award-card:nth-child(5) { animation-delay: 0.2s; }
.resume-section.reveal .award-card:nth-child(6) { animation-delay: 0.25s; }
.resume-section.reveal .award-card:nth-child(7) { animation-delay: 0.3s; }
.resume-section.reveal .award-card:nth-child(8) { animation-delay: 0.35s; }
.resume-section.reveal .award-card:nth-child(9) { animation-delay: 0.4s; }
.resume-section.reveal .award-card:nth-child(10) { animation-delay: 0.45s; }
.resume-section.reveal .award-card:nth-child(11) { animation-delay: 0.5s; }
.resume-section.reveal .award-card:nth-child(12) { animation-delay: 0.55s; }
.resume-section.reveal .award-card:nth-child(13) { animation-delay: 0.6s; }
.resume-section.reveal .award-card:nth-child(14) { animation-delay: 0.65s; }
.resume-section.reveal .award-card:nth-child(15) { animation-delay: 0.7s; }
.resume-section.reveal .award-card:nth-child(16) { animation-delay: 0.75s; }

.resume-section.reveal .fa-ul li:nth-child(1) { animation-delay: 0s; }
.resume-section.reveal .fa-ul li:nth-child(2) { animation-delay: 0.1s; }
.resume-section.reveal .fa-ul li:nth-child(3) { animation-delay: 0.2s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}