/* ============================================
   DESIGN SYSTEM - CSS Variables
   ============================================ */
:root {
  /* Primary Palette - Enhanced Teal */
  --teal-dark: #0a5a5a;
  --teal-primary: #17a2b8;
  --teal-light: #20c5dc;
  --teal-glow: rgba(23, 162, 184, 0.4);

  /* Warm Accent */
  --accent-warm: #e8a54b;
  --accent-warm-light: #f5c77e;

  /* Neutrals */
  --bg-light: #f8f9fa;
  --bg-subtle: #f0f4f5;
  --text-primary: #1a2e35;
  --text-secondary: #4a5c63;
  --text-muted: #7a8f96;

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;

  /* Spacing */
  --section-padding: 4rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 30px var(--teal-glow);
}

/* ============================================
   BASE STYLES
   ============================================ */
html {
  position: relative;
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background-color: var(--bg-light);
  background-image:
    radial-gradient(circle at 20% 50%, rgba(23, 162, 184, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(232, 165, 75, 0.03) 0%, transparent 50%);
  line-height: 1.7;
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.015;
  z-index: 9999;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
}

h2 {
  font-size: 1.75rem;
  font-weight: 600;
}

h3 {
  font-size: 1.35rem;
  font-weight: 600;
}

p {
  color: var(--text-secondary);
}

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

/* ============================================
   ANIMATIONS - Staggered Entry
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 20px var(--teal-glow), 0 0 40px rgba(23, 162, 184, 0.2);
  }
  50% {
    box-shadow: 0 0 30px var(--teal-glow), 0 0 60px rgba(23, 162, 184, 0.3);
  }
}

.animate-in {
  animation: fadeInUp 0.6s var(--transition-slow) both;
}

.animate-in-1 { animation-delay: 0.1s; }
.animate-in-2 { animation-delay: 0.2s; }
.animate-in-3 { animation-delay: 0.3s; }
.animate-in-4 { animation-delay: 0.4s; }
.animate-in-5 { animation-delay: 0.5s; }

/* ============================================
   NAVBAR - Enhanced Gradient
   ============================================ */
.navbar {
  /* background: linear-gradient(135deg, var(--teal-dark) 0%, var(--teal-primary) 50%, var(--teal-light) 100%) !important; */
  background: var(--teal-primary) !important;
  box-shadow: var(--shadow-md);
  padding: 0.75rem 1.5rem;
}

.navbar-brand img {
  transition: transform var(--transition-medium);
}

.navbar-brand:hover img {
  transform: scale(1.05) rotate(-5deg);
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-family: var(--font-display);
  font-weight: 500;
  padding: 0.5rem 1rem;
  position: relative;
  transition: color var(--transition-fast);
}

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

.navbar-dark .navbar-nav .nav-link:hover {
  color: #fff !important;
}

.navbar-dark .navbar-nav .nav-link:hover::after {
  width: 60%;
}

.navbar-dark .navbar-toggler {
  color: rgba(255, 255, 255, 1);
  border-color: rgba(255, 255, 255, 0.5);
}

.sticky-top {
  margin-bottom: 0;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  padding: 5rem 0 4rem;
}

.hero-name {
  font-size: 4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--teal-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.8s var(--transition-slow) both;
}

.hero-title {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-secondary);
  animation: fadeInUp 0.8s var(--transition-slow) both;
}

.hero-title:nth-of-type(1) { animation-delay: 0.15s; }
.hero-title:nth-of-type(2) { animation-delay: 0.25s; }

/* Headshot with glow ring */
.cropped-img {
  height: 180px;
  width: 180px;
  border-radius: 50%;
  background-position: center center;
  background-repeat: no-repeat;
  object-fit: cover;
  border: 4px solid var(--teal-primary);
  box-shadow: var(--shadow-glow);
  animation: fadeIn 1s ease both, pulse-glow 4s ease-in-out infinite;
  animation-delay: 0.3s, 1.3s;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.cropped-img:hover {
  transform: scale(1.05);
  box-shadow: 0 0 40px var(--teal-glow), 0 0 80px rgba(23, 162, 184, 0.25);
}

/* Bio headshot - smaller variant without pulse */
.bio-headshot {
  height: 120px;
  width: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--teal-primary);
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.bio-headshot:hover {
  transform: scale(1.05);
  box-shadow: 0 0 40px var(--teal-glow), 0 0 80px rgba(23, 162, 184, 0.25);
}

/* Skills text */
.skills-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  animation: fadeInUp 0.8s var(--transition-slow) both;
  animation-delay: 0.4s;
}

.skills-text strong {
  color: var(--teal-primary);
  font-weight: 600;
}

/* ============================================
   SOCIAL ICONS - Enhanced
   ============================================ */
.social-icons {
  animation: fadeInUp 0.8s var(--transition-slow) both;
  animation-delay: 0.35s;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(23, 162, 184, 0.08);
  transition: all var(--transition-medium);
}

.social-link:hover {
  background: var(--teal-primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--teal-glow);
}

.social-link svg,
.social-link .social-icon {
  width: 22px;
  height: 22px;
  color: var(--teal-primary);
  transition: color var(--transition-fast);
}

.social-link:hover svg,
.social-link:hover .social-icon {
  color: #fff;
}

/* ============================================
   CARDS - Enhanced with depth
   ============================================ */
.card {
  border: none;
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-body {
  padding: 1.75rem;
}

.card-title {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
}

.card-subtitle {
  color: var(--text-muted) !important;
}

/* Client cards inside Experience */
.client-card {
  background: var(--bg-subtle);
  border-radius: 12px;
  padding: 1.25rem;
  border-left: 3px solid var(--teal-primary);
  transition: all var(--transition-medium);
}

.client-card:hover {
  border-left-color: var(--accent-warm);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

/* Equal height cards in grid */
.card.h-100 {
  display: flex;
  flex-direction: column;
}

.card.h-100 .card-body {
  flex: 1;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  position: relative;
  display: inline-block;
  padding-bottom: 0.75rem;
}

.section-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--teal-primary), var(--accent-warm));
  border-radius: 2px;
}

h2.text-center::after {
  left: 50%;
  transform: translateX(-50%);
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.experience-role {
  font-size: 1.25rem;
  color: var(--teal-dark);
}

.experience-date {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: linear-gradient(135deg, var(--teal-primary), var(--teal-light));
  color: #fff;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* Client cards nested inside */
.card .card-body .card-body {
  background: var(--bg-subtle);
  border-radius: 12px;
  margin-bottom: 1rem;
  border-left: 3px solid var(--teal-primary);
}

/* ============================================
   JUMBOTRON / PROJECTS
   ============================================ */
.jumbotron {
  background: linear-gradient(180deg, #fff 0%, var(--bg-subtle) 100%);
  border-radius: 20px;
  padding: 2.5rem;
  margin: 0.75rem;
  animation: fadeInUp 0.8s var(--transition-slow) both;
  animation-delay: 0.3s;
}

/* Project cards */
.card-deck .card {
  border-radius: 12px;
  border: 1px solid rgba(23, 162, 184, 0.1);
}

.card-deck .card:hover {
  border-color: var(--teal-primary);
}

.card-deck .card img {
  border-radius: 4px;
}

/* ============================================
   BADGES
   ============================================ */
.badge-info {
  background: linear-gradient(135deg, var(--teal-primary), var(--teal-light));
  font-weight: 500;
  padding: 0.4em 0.8em;
  font-size: 0.8rem;
}

.badge-secondary {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-info {
  background: linear-gradient(135deg, var(--teal-primary) 0%, var(--teal-light) 100%);
  border: none;
  font-family: var(--font-display);
  font-weight: 600;
  padding: 0.6rem 1.5rem;
  border-radius: 8px;
  transition: all var(--transition-medium);
}

.btn-info:hover {
  background: linear-gradient(135deg, var(--teal-dark) 0%, var(--teal-primary) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--teal-glow);
}

.btn-outline-info {
  border: 2px solid var(--teal-primary);
  color: var(--teal-primary);
  font-family: var(--font-display);
  font-weight: 600;
  border-radius: 8px;
  transition: all var(--transition-medium);
}

.btn-outline-info:hover {
  background: var(--teal-primary);
  border-color: var(--teal-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--teal-glow);
}

.btn-success {
  background: linear-gradient(135deg, #28a745 0%, #34ce57 100%);
  border: none;
  font-family: var(--font-display);
  font-weight: 600;
  padding: 0.6rem 1.5rem;
  border-radius: 8px;
  transition: all var(--transition-medium);
}

.btn-success:hover {
  background: linear-gradient(135deg, #1e7e34 0%, #28a745 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

/* ============================================
   FORM CONTROLS
   ============================================ */
.form-control {
  border: 2px solid #e0e6e8;
  border-radius: 10px;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--teal-primary);
  box-shadow: 0 0 0 3px var(--teal-glow);
}

.form-control::placeholder {
  color: var(--text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  height: 60px;
  /* background: linear-gradient(135deg, var(--teal-dark) 0%, var(--teal-primary) 100%); */
  background: var(--teal-primary);
  margin-top: 3rem;
}

/* ============================================
   HORIZONTAL RULES
   ============================================ */
hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(23, 162, 184, 0.3), transparent);
  margin: 1.5rem 0;
}

/* ============================================
   LISTS
   ============================================ */
ul:not(.navbar-nav):not(.list-unstyled) {
  padding-left: 0;
  list-style: none;
}

ul:not(.navbar-nav):not(.list-unstyled) li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
}

ul:not(.navbar-nav):not(.list-unstyled) li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--teal-primary);
  border-radius: 50%;
}

/* Nested lists */
ul:not(.navbar-nav):not(.list-unstyled) ul li::before {
  background: var(--accent-warm);
  width: 5px;
  height: 5px;
}

/* ============================================
   LINKS
   ============================================ */
a:not(.btn):not(.nav-link):not(.navbar-brand):not(.social-link):not(.card-link) {
  color: var(--teal-primary);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-fast);
}

a:not(.btn):not(.nav-link):not(.navbar-brand):not(.social-link):not(.card-link):hover {
  color: var(--teal-dark);
}

.card-link {
  color: var(--teal-primary);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.card-link:hover {
  color: var(--teal-dark);
  text-decoration: none;
}

/* ============================================
   CVE / SECURITY RESEARCH HIGHLIGHT
   ============================================ */
ul li:has(> ul) > ul li {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 768px) {
  h1, .hero-name {
    font-size: 2.5rem;
  }

  h2, .hero-title {
    font-size: 1.25rem;
  }

  .cropped-img {
    height: 150px;
    width: 150px;
  }

  .jumbotron {
    padding: 1.5rem;
  }

  .card-body {
    padding: 1.25rem;
  }
}

/* ============================================
   SCROLL REVEAL HELPER (optional JS enhancement)
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--transition-slow);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}