/* ════════════════════════════════════
   GLASS MIXIN — iOS 26 Liquid Glass
   ════════════════════════════════════ */
.glass {
  background: var(--bg-surface);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition:
    background     var(--transition-base),
    border-color   var(--transition-base),
    box-shadow     var(--transition-base),
    transform      var(--transition-base);
}

/* Specular highlight — the key iOS glass effect */
.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.16) 0%,
    rgba(255, 255, 255, 0.06) 35%,
    transparent 60%
  );
  pointer-events: none;
  z-index: 0;
}

/* Top edge light line — simulates light hitting the glass rim */
.glass::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.35) 30%,
    rgba(255, 255, 255, 0.55) 50%,
    rgba(255, 255, 255, 0.35) 70%,
    transparent 100%
  );
  border-radius: inherit;
  pointer-events: none;
  z-index: 1;
}

.glass > * {
  position: relative;
  z-index: 2;
}

.glass:hover {
  background: var(--bg-surface-hover);
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: var(--shadow-hover);
}

/* Light mode glass tweak */
[data-theme="light"] .glass::before {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.70) 0%,
    rgba(255, 255, 255, 0.25) 40%,
    transparent 65%
  );
}

[data-theme="light"] .glass::after {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.90) 30%,
    rgba(255, 255, 255, 1.00) 50%,
    rgba(255, 255, 255, 0.90) 70%,
    transparent 100%
  );
}

/* ════════════════════════════════════
   NAVIGATION (top bar)
   ════════════════════════════════════ */
.nav {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 1080px;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(60px) saturate(220%);
  -webkit-backdrop-filter: blur(60px) saturate(220%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-pill);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 12px 40px rgba(0, 0, 0, 0.2);
  transition:
    background var(--transition-slow),
    border-color var(--transition-slow);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  width: 100%;
  padding: 0 24px;
}

.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--transition-base);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* ── Theme Toggle Button ── */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--bg-surface);
  backdrop-filter: var(--blur-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    transform var(--transition-base);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-accent);
  color: var(--accent);
  transform: scale(1.08);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  animation: spinIn 0.3s ease both;
}

/* ── Hamburger (mobile) ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Menu ── */
.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  position: absolute;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--bg-glass);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid var(--border-glass);
  padding: var(--space-md) var(--space-xl);
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: 500;
  border-bottom: 1px solid var(--border-glass);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--accent); }

/* ── Side Nav Dots ── */
.side-nav {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.side-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-glass);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  transition:
    background var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
  position: relative;
}

.side-dot::before {
  content: attr(data-label);
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  background: var(--bg-glass);
  backdrop-filter: var(--blur-sm);
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-glass);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.side-dot:hover::before {
  opacity: 1;
}

.side-dot.active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.4);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ════════════════════════════════════
   HERO / HEADER
   ════════════════════════════════════ */
.hero {
  padding: calc(60px + var(--space-2xl)) 0 var(--space-2xl);
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.hero-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: glowPulse 2s ease-in-out infinite;
}

.hero-name {
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--text-primary) 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: var(--space-lg);
}

.hero-summary {
  max-width: 620px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

/* ── Contact Links ── */
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: var(--bg-surface);
  backdrop-filter: var(--blur-sm);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: 500;
  text-decoration: none;
  transition:
    background  var(--transition-base),
    border-color var(--transition-base),
    color       var(--transition-fast),
    transform   var(--transition-base),
    box-shadow  var(--transition-base);
}

.contact-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  flex-shrink: 0;
}

.contact-link:hover {
  background: var(--accent-soft);
  border-color: var(--border-accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

/* Download CV — accented variant */
.contact-link--accent {
  background: var(--accent-soft);
  border-color: var(--border-accent);
  color: var(--accent);
}

.contact-link--accent svg {
  fill: none;
}

.contact-link--accent:hover {
  background: var(--accent);
  color: var(--text-on-accent);
  border-color: var(--accent);
  box-shadow: 0 6px 24px var(--accent-glow);
}

/* ── Hero Stats Strip ── */
.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin: var(--space-xl) 0 var(--space-lg);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border-glass);
  flex-shrink: 0;
}



/* ════════════════════════════════════
   SECTION LAYOUT
   ════════════════════════════════════ */
section {
  margin-bottom: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-sm);
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-xl);
}

/* ════════════════════════════════════
   SKILLS SECTION
   ════════════════════════════════════ */
.skills-categories {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.skill-category {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.skill-category-label {
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  background: rgba(58, 127, 213, 0.06);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(58, 127, 213, 0.22);
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: default;
  position: relative;
  overflow: hidden;
  transition:
    background  var(--transition-base),
    border-color var(--transition-base),
    color       var(--transition-fast),
    transform   var(--transition-fast),
    box-shadow  var(--transition-base);
  user-select: none;
}

/* specular top edge on tags */
.skill-tag::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.45),
    transparent
  );
  pointer-events: none;
}



.skill-tag:hover {
  background: var(--accent-soft);
  border-color: var(--border-accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 18px var(--accent-glow);
}

.skill-tag .tag-icon {
  width: 14px;
  height: 14px;
  fill: currentColor;
  opacity: 0.75;
}



/* In-progress / learning pill */
.skill-tag.learning {
  border-style: dashed;
  border-color: rgba(122, 171, 255, 0.40);
  background: rgba(122, 171, 255, 0.07);
  color: var(--text-secondary);
  padding-left: 10px;
}

.skill-tag.learning::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-left: 6px;
  flex-shrink: 0;
  animation: glowPulse 2s ease-in-out infinite;
}

/* Override ::before specular for learning — keep it subtle */
.skill-tag.learning::before {
  opacity: 0.5;
}

.skill-tag.learning:hover {
  background: var(--accent-soft);
  border-color: var(--border-accent);
  border-style: solid;
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 18px var(--accent-glow);
}

/* ════════════════════════════════════
   PROJECT CARDS
   ════════════════════════════════════ */
.projects-grid {
  display: grid;
  gap: var(--space-lg);
}

.project-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  position: relative;
}

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.project-title {
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.project-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: var(--text-secondary);
  text-decoration: none;
  transition:
    background  var(--transition-base),
    border-color var(--transition-base),
    color       var(--transition-fast),
    transform   var(--transition-base);
}

[data-theme="light"] .project-link-btn {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.12);
  color: var(--text-secondary);
}

.project-link-btn svg {
  width: 15px;
  height: 15px;
  fill: currentColor;
}

.project-link-btn:hover {
  background: var(--accent-soft);
  border-color: var(--border-accent);
  color: var(--accent);
  transform: scale(1.1) rotate(8deg);
}

.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.tech-badge {
  padding: 3px 10px;
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.project-description {
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: var(--fs-sm);
}

/* ════════════════════════════════════
   EXPERIENCE TIMELINE
   ════════════════════════════════════ */
.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -28px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-base);
  box-shadow: 0 0 0 2px var(--accent);
  transition: box-shadow var(--transition-base);
}

.timeline-item:hover .timeline-dot {
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.timeline-card {
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-md);
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: 4px;
}

.company-name {
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--text-primary);
}

.cert-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  flex-shrink: 0;
  transition:
    background  var(--transition-base),
    border-color var(--transition-base),
    color       var(--transition-fast);
}

[data-theme="light"] .cert-btn {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.10);
  color: var(--text-secondary);
}

.cert-btn svg {
  width: 12px;
  height: 12px;
  fill: currentColor;
}

.cert-btn:hover {
  background: var(--accent-soft);
  border-color: var(--border-accent);
  color: var(--accent);
}

.timeline-role {
  font-size: var(--fs-sm);
  color: var(--accent);
  font-style: italic;
  margin-bottom: var(--space-md);
}

.timeline-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ════════════════════════════════════
   EDUCATION CARDS
   ════════════════════════════════════ */
.education-grid {
  display: grid;
  gap: var(--space-md);
}

.education-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
}

.education-info {}

.education-degree {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--fs-base);
  margin-bottom: 4px;
}

.education-institution {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.education-year {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: 4px;
  font-family: 'JetBrains Mono', monospace;
}

.education-score {
  text-align: right;
  flex-shrink: 0;
}

.score-number {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.score-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

/* ════════════════════════════════════
   CERTIFICATIONS
   ════════════════════════════════════ */
.certs-list {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-surface);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-card);
}

.cert-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  background: transparent;
  border-bottom: 1px solid var(--border-glass);
  transition: background var(--transition-fast);
}

.cert-item:last-child {
  border-bottom: none;
}

.cert-item:hover {
  background: var(--bg-surface-hover);
}

.cert-info {}

.cert-name {
  font-weight: 500;
  color: var(--text-primary);
  font-size: var(--fs-sm);
  margin-bottom: 3px;
}

.cert-provider {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
}

.cert-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.20);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  flex-shrink: 0;
  transition:
    background  var(--transition-fast),
    border-color var(--transition-fast),
    color       var(--transition-fast);
}

[data-theme="light"] .cert-view-btn {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.10);
  color: var(--text-secondary);
}

.cert-view-btn svg {
  width: 11px;
  height: 11px;
  fill: currentColor;
}

.cert-view-btn:hover {
  background: var(--accent-soft);
  border-color: var(--border-accent);
  color: var(--accent);
}

/* ════════════════════════════════════
   FOOTER
   ════════════════════════════════════ */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-glass);
  padding: var(--space-xl) 0;
  text-align: center;
}

.footer-text {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.footer-text a {
  color: var(--accent);
}

/* ════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════ */
@media (max-width: 900px) {
  .side-nav { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero { padding-top: calc(60px + var(--space-xl)); }

  .education-card {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .education-score {
    text-align: left;
  }

  .project-card-header {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .timeline-header {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .contact-links {
    flex-direction: column;
    align-items: flex-start;
  }

  .cert-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .timeline-card {
    padding: var(--space-md);
  }

  .project-card {
    padding: var(--space-lg);
  }
}