/* ============================================
   Cyber-Nexus — Modern Cybersecurity Portfolio
   Designed for High-Performance & Security Authority
   ============================================ */

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

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

:root {
  /* Colors */
  --bg: #020617;
  --surface: rgba(15, 23, 42, 0.6);
  --surface-solid: #0f172a;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent: #3b82f6; /* Electric Blue */
  --accent-secondary: #3b82f6;
  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #10b981;
  --info: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.4);
  --border: rgba(255, 255, 255, 0.1);
  --border-focus: rgba(59, 130, 246, 0.5);
  
  /* Effects */
  --glass: blur(12px) saturate(180%);
  --radius: 12px;
  --transition: cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
  
  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  background-image: 
    linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: center center;
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 50% 0%, rgba(30, 58, 138, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(30, 58, 138, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* Optional: Subtle grid move */
@keyframes gridMove {
  from { background-position: 0 0; }
  to { background-position: 50px 50px; }
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

img {
  max-width: 100%;
  display: block;
}

/* ---------- Skip Link (Accessibility) ---------- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background-color: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  text-decoration: none;
  border-radius: 0 0 var(--radius) 0;
  z-index: 1000;
  font-weight: 500;
  font-size: 0.875rem;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--accent-hover);
  outline-offset: 2px;
}

/* ---------- Focus Styles ---------- */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: 'Outfit', sans-serif;
  color: var(--text-primary);
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 8vw, 4rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 5vw, 2.5rem); font-weight: 700; margin-bottom: 1.5rem; position: relative; display: inline-block; }
h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; color: var(--accent); }

p { 
  color: var(--text-secondary); 
  font-size: 1.1rem; 
  max-width: 70ch;
}

code { font-family: 'JetBrains Mono', monospace; color: var(--accent); }

/* ---------- Layout ---------- */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

main {
  padding-top: var(--nav-height);
}

section {
  padding: 70px 0;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  background: transparent;
  transition: var(--transition);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.nav-brand {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-brand span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--accent);
}

/* ---------- Hero ---------- */
.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  position: relative;
}

.hero-content {
  max-width: 800px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 6px 12px;
  border-radius: 100px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.5; }
  100% { transform: scale(1); opacity: 1; }
}

.hero h1 span {
  display: block;
  background: linear-gradient(90deg, var(--accent), #60a5fa);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero .subtitle {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  font-size: 1.25rem;
  margin: 12px 0 16px;
}

.hero .description {
  margin-bottom: 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text-primary);
  backdrop-filter: var(--glass);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(59, 130, 246, 0.05);
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  backdrop-filter: var(--glass);
  -webkit-backdrop-filter: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  background: rgba(15, 23, 42, 0.8);
  box-shadow: 0 20px 40px -20px var(--accent-glow);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    600px circle at var(--mouse-x, 0) var(--mouse-y, 0),
    rgba(59, 130, 246, 0.08),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

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

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.05),
    transparent
  );
  transition: 0.5s;
}

.card:hover::after {
  left: 100%;
}

.card-label {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* ---------- Severity Badge ---------- */
.severity {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.severity.high {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.severity.medium {
  background-color: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
}

/* ---------- Report Wrappers ---------- */
.detail-wrapper {
  padding-top: 40px;
  padding-bottom: 80px;
  max-width: 900px;
  margin: 0 auto;
}

.detail-card {
  background: var(--surface);
  backdrop-filter: var(--glass);
  -webkit-backdrop-filter: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3rem;
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.5);
}

@media (max-width: 768px) {
  .detail-card {
    padding: 1.5rem;
    border-radius: var(--radius);
  }
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.breadcrumb-nav a {
  color: var(--text-secondary);
}

.breadcrumb-nav a:hover {
  color: var(--accent);
}

.breadcrumb-separator {
  opacity: 0.3;
}
.detail-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.detail-header h1 {
  font-size: 2rem;
  margin-bottom: 0.4rem;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: 'JetBrains Mono', monospace;
}

.detail-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.detail-section {
  margin-bottom: 3rem;
  animation: reveal 0.8s ease-out forwards;
  opacity: 0;
}

.detail-section:nth-of-type(1) { animation-delay: 0.1s; }
.detail-section:nth-of-type(2) { animation-delay: 0.2s; }
.detail-section:nth-of-type(3) { animation-delay: 0.3s; }
.detail-section:nth-of-type(4) { animation-delay: 0.4s; }
.detail-section:nth-of-type(5) { animation-delay: 0.5s; }

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

.detail-section h2 {
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.detail-section ul,
.detail-section ol {
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.detail-section li {
  margin-bottom: 0.3rem;
  line-height: 1.8;
}

.detail-section p {
  margin-bottom: 0.4rem;
}

code,
.code-block {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
}

code {
  background-color: var(--surface);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  color: var(--accent);
}

.code-block {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  overflow-x: auto;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------- Timeline (Interactive) ---------- */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}

/* Animated vertical gradient line */
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--accent) 0%,
    #60a5fa 40%,
    #a78bfa 70%,
    var(--border) 100%
  );
  transform-origin: top;
  transform: scaleY(0);
  transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.timeline.line-drawn::before {
  transform: scaleY(1);
}

/* --- Year headings --- */
.timeline-year {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  margin-top: 2rem;
  position: relative;
  /* scroll entrance */
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.timeline-year:first-child {
  margin-top: 0;
}

.timeline-year.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Year dot — pulses on entrance */
.timeline-year::before {
  content: '';
  position: absolute;
  left: -2.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
  transition: box-shadow 0.4s ease;
}

.timeline-year.visible::before {
  animation: dotPulse 0.8s ease-out forwards;
}

@keyframes dotPulse {
  0%   { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.6); }
  100% { box-shadow: 0 0 12px 4px rgba(59, 130, 246, 0); }
}

/* --- Timeline items --- */
.timeline-item {
  position: relative;
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  background: transparent;
  border-left: 2px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease,
              transform 0.35s ease, box-shadow 0.35s ease;
  /* scroll entrance — slide from left */
  opacity: 0;
  transform: translateX(-30px);
}

.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

/* Hover: shift right, accent border, subtle bg */
.timeline-item:hover {
  background: var(--surface);
  border-left-color: var(--accent);
  transform: translateX(8px);
  box-shadow: -4px 0 20px -8px rgba(59, 130, 246, 0.2),
              0 4px 16px -8px rgba(0, 0, 0, 0.3);
}

/* Item dot */
.timeline-item::before {
  content: '';
  position: absolute;
  left: -2.85rem;
  top: 1.25rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--border);
  border: 2px solid var(--bg);
  transition: background-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

/* Dot glows on hover */
.timeline-item:hover::before {
  background-color: var(--accent);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
  transform: scale(1.4);
}

/* Date */
.timeline-item .date {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 0.3rem;
  transition: color 0.3s ease;
}

.timeline-item:hover .date {
  color: var(--accent);
}

/* Event title */
.timeline-item .event {
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

.timeline-item:hover .event {
  color: #fff;
}

/* Description text inside items */
.timeline-item p:not(.date):not(.event) {
  opacity: 0.65;
  transition: opacity 0.3s ease;
}

.timeline-item:hover p:not(.date):not(.event) {
  opacity: 1;
}

/* ---------- Skills (Interactive) ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.skill-group {
  background: var(--surface);
  backdrop-filter: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 28px 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s ease;
  /* Scroll entrance — slide from left */
  opacity: 0;
  transform: translateX(-40px);
}

.skill-group.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.4s ease, box-shadow 0.4s ease;
}

/* Staggered entrance delays */
.skill-group:nth-child(1) { transition-delay: 0s; }
.skill-group:nth-child(2) { transition-delay: 0.15s; }
.skill-group:nth-child(3) { transition-delay: 0.3s; }

/* Animated left accent border — fills top-to-bottom on hover */
.skill-group::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: linear-gradient(180deg, var(--accent), #60a5fa, #a78bfa);
  border-radius: 0 2px 2px 0;
  transition: height 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.skill-group:hover::before {
  height: 100%;
}

/* Warm gradient background glow on hover */
.skill-group::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.04) 0%,
    rgba(167, 139, 250, 0.03) 50%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 0;
}

.skill-group:hover::after {
  opacity: 1;
}

.skill-group:hover {
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateX(6px);
  box-shadow: -4px 0 20px -8px rgba(59, 130, 246, 0.25),
              0 6px 20px -12px rgba(0, 0, 0, 0.3);
}

.skill-group h3 {
  color: var(--text-primary);
  margin-bottom: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem;
  position: relative;
  z-index: 1;
  transition: color 0.3s ease;
}

.skill-group:hover h3 {
  color: #fff;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: relative;
  z-index: 1;
}

.skill-tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: default;
  position: relative;
  opacity: 0.7;
  transform: translateX(0);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease,
              border-color 0.3s ease, background 0.3s ease;
}

/* Staggered tag reveal on card hover */
.skill-group:hover .skill-tag {
  opacity: 1;
  transform: translateX(4px);
  color: var(--text-primary);
}

.skill-group:hover .skill-tag:nth-child(1) { transition-delay: 0.03s; }
.skill-group:hover .skill-tag:nth-child(2) { transition-delay: 0.06s; }
.skill-group:hover .skill-tag:nth-child(3) { transition-delay: 0.09s; }
.skill-group:hover .skill-tag:nth-child(4) { transition-delay: 0.12s; }
.skill-group:hover .skill-tag:nth-child(5) { transition-delay: 0.15s; }
.skill-group:hover .skill-tag:nth-child(6) { transition-delay: 0.18s; }
.skill-group:hover .skill-tag:nth-child(7) { transition-delay: 0.21s; }
.skill-group:hover .skill-tag:nth-child(8) { transition-delay: 0.24s; }
.skill-group:hover .skill-tag:nth-child(9) { transition-delay: 0.27s; }
.skill-group:hover .skill-tag:nth-child(10) { transition-delay: 0.30s; }
.skill-group:hover .skill-tag:nth-child(11) { transition-delay: 0.33s; }

.skill-tag:hover {
  border-color: var(--accent);
  color: #fff;
  background: rgba(59, 130, 246, 0.1);
}

/* ---------- Certifications ---------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--surface);
  backdrop-filter: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

.cert-card:hover {
  border-color: var(--accent);
  transform: scale(1.02);
}

.cert-icon {
  width: 48px;
  height: 48px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
}

.cert-info h3 { font-size: 1rem; margin-bottom: 4px; }
.cert-info p { font-size: 0.85rem; color: var(--text-secondary); }

/* Clickable cert-card */
.cert-card[data-cert] {
  cursor: pointer;
  position: relative;
}

.cert-view-hint {
  position: absolute;
  bottom: 8px;
  right: 12px;
  font-size: 0.7rem;
  color: var(--text-secondary);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateX(-4px);
  font-family: 'JetBrains Mono', monospace;
}

.cert-card:hover .cert-view-hint {
  opacity: 0.7;
  transform: translateX(0);
}

/* ---------- Certificate Modal ---------- */
.cert-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.cert-modal.active {
  opacity: 1;
  visibility: visible;
}

.cert-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.cert-modal-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  transform: scale(0.9);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

.cert-modal.active .cert-modal-content {
  transform: scale(1);
}

.cert-modal-content img {
  max-width: 100%;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.6),
              0 0 0 1px rgba(255, 255, 255, 0.1);
}

.cert-modal-close {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(8px);
  color: var(--text-primary);
  font-size: 1.5rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  z-index: 2;
  line-height: 1;
}

.cert-modal-close:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  transform: rotate(90deg);
}

/* ---------- Section Header ---------- */
.section-header {
  margin-bottom: 60px;
}

.section-header h2 { margin-bottom: 8px; }
.section-header p { font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; color: var(--text-primary); opacity: 0.8; }

/* ---------- Experience (Interactive) ---------- */
.experience-item {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.75rem 1.75rem 2rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s ease;
  /* Scroll entrance — slide from left */
  opacity: 0;
  transform: translateX(-40px);
}

.experience-item.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.4s ease, box-shadow 0.4s ease;
}

/* Staggered entrance */
.experience-item:nth-child(1) { transition-delay: 0s; }
.experience-item:nth-child(2) { transition-delay: 0.18s; }
.experience-item:nth-child(3) { transition-delay: 0.36s; }

/* Animated left accent border — fills top-to-bottom on hover */
.experience-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: linear-gradient(180deg, var(--accent), #60a5fa, #a78bfa);
  border-radius: 0 2px 2px 0;
  transition: height 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.experience-item:hover::before {
  height: 100%;
}

/* Warm gradient background glow on hover */
.experience-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.06) 0%,
    rgba(167, 139, 250, 0.04) 50%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 0;
}

.experience-item:hover::after {
  opacity: 1;
}

.experience-item:hover {
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateX(6px);
  box-shadow: -4px 0 25px -8px var(--accent-glow),
              0 8px 30px -15px rgba(0, 0, 0, 0.4);
}

.experience-item h3 {
  margin-bottom: 0.25rem;
  position: relative;
  z-index: 1;
  transition: color 0.3s ease;
}

.experience-item:hover h3 {
  color: #fff;
}

.experience-item .role {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
  position: relative;
  z-index: 1;
}

.experience-item .period {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  position: relative;
  z-index: 1;
}

.experience-item ul {
  padding-left: 1.25rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.experience-item li {
  margin-bottom: 0.3rem;
  font-size: 0.9rem;
  opacity: 0.7;
  transform: translateX(0);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

/* Staggered list item reveal on card hover */
.experience-item:hover li {
  opacity: 1;
  transform: translateX(4px);
}

.experience-item:hover li:nth-child(1) { transition-delay: 0.05s; }
.experience-item:hover li:nth-child(2) { transition-delay: 0.1s; }
.experience-item:hover li:nth-child(3) { transition-delay: 0.15s; }
.experience-item:hover li:nth-child(4) { transition-delay: 0.2s; }
.experience-item:hover li:nth-child(5) { transition-delay: 0.25s; }

/* Bullet colour shift */
.experience-item:hover li::marker {
  color: var(--accent);
}

/* ---------- Contact ---------- */
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 480px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  transition: border-color var(--transition);
}

.contact-item:hover {
  border-color: var(--accent);
}

.contact-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg);
  border-radius: var(--radius);
  flex-shrink: 0;
}

.contact-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 2;
}

.contact-info .label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}

.contact-info .value {
  font-size: 0.95rem;
  color: var(--text-primary);
}

/* ---------- Disclosure ---------- */
.disclosure-content {
  max-width: 720px;
}

.disclosure-content h2 {
  font-size: 1.35rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.disclosure-content h2:first-child {
  margin-top: 0;
}

.disclosure-content p {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  line-height: 1.8;
}

.disclosure-content ul {
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.disclosure-content li {
  margin-bottom: 0.2rem;
  font-size: 0.9rem;
}

/* ---------- Page Header ---------- */
.page-header {
  margin-bottom: 2.5rem;
}

.page-header h1 {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

.page-header p {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: auto;
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.footer-links {
  display: flex;
  gap: 1.25rem;
}

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

.footer-links a:hover {
  color: var(--text-primary);
}

/* ---------- Back Link ---------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

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

/* ---------- Back to Top Button ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background-color: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 99;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--accent-hover);
  transform: translateY(-3px);
  box-shadow: 0 15px 20px -5px rgb(0 0 0 / 0.2);
}

.back-to-top svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Smooth Animations ---------- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  animation: fadeIn 0.5s ease-out;
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }
.card:nth-child(7) { animation-delay: 0.7s; }
.card:nth-child(8) { animation-delay: 0.8s; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
  }

  .nav-links.open {
    display: flex;
    max-height: 500px;
  }

  @supports not (transition: max-height 0.3s) {
    .nav-links {
      display: none;
    }
    
    .nav-links.open {
      display: flex;
    }
  }

  .nav-links a {
    padding: 0.75rem 0.5rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero .subtitle {
    font-size: 0.95rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.4rem;
  }

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

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

  .footer .container {
    flex-direction: column;
    text-align: center;
  }

  main {
    padding: 2rem 0;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.5rem;
  }

  .container {
    padding: 0 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
}

/* ---------- Print Styles ---------- */
@media print {
  .navbar,
  .nav-toggle,
  .footer,
  .back-to-top,
  .skip-link,
  .hero-actions {
    display: none !important;
  }

  body {
    background-color: #fff;
    color: #000;
  }

  .hero,
  .section {
    page-break-inside: avoid;
  }

  a {
    text-decoration: underline;
    color: #000;
  }

  .card {
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }
}