/* Interactive Resume — Portfolio blue theme */
:root {
  --bg-deep: #f8fbff;
  --bg-surface: #f0f6fc;
  --bg-elevated: rgba(255, 255, 255, 0.72);
  --text-primary: #1e3a5f;
  --text-secondary: #3d5f82;
  --text-muted: #6d8eb3;
  --accent: #2563eb;
  --accent-bright: #60a5fa;
  --accent-cyan: #06b6d4;
  --accent-violet: #6366f1;
  --accent-glow: rgba(37, 99, 235, 0.28);
  --accent-soft: rgba(37, 99, 235, 0.1);
  --coral: #f97316;
  --coral-soft: rgba(249, 115, 22, 0.12);
  --violet: #818cf8;
  --teal: #0891b2;
  --border-subtle: rgba(59, 130, 246, 0.14);
  --border-medium: rgba(59, 130, 246, 0.22);
  --border-accent: rgba(59, 130, 246, 0.32);
  --shadow-sm: 0 4px 20px rgba(30, 58, 95, 0.06);
  --shadow-md: 0 12px 36px rgba(30, 58, 95, 0.09);
  --shadow-lg: 0 20px 50px rgba(30, 58, 95, 0.11);
  --glass-bg: rgba(255, 255, 255, 0.62);
  --glass-bg-strong: rgba(255, 255, 255, 0.82);
  --glass-blur: blur(20px) saturate(160%);
  --font-display: 'Bricolage Grotesque', system-ui, sans-serif;
  --font-body: 'Sora', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 16px;
  --radius-lg: 24px;
  --nav-w: 236px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --gradient-brand: linear-gradient(118deg, #1e40af 0%, #2563eb 42%, #06b6d4 100%);
  --gradient-card: linear-gradient(155deg, rgba(255, 255, 255, 0.92) 0%, rgba(237, 246, 255, 0.68) 100%);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--font-body-size);
  background: linear-gradient(168deg, #f8fbff 0%, #edf4fc 46%, #e6eff9 100%);
  color: var(--text-primary);
  line-height: var(--line-height-body);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.resume-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 50% at 12% -8%, rgba(147, 197, 253, 0.42), transparent 55%),
    radial-gradient(ellipse 55% 45% at 92% 105%, rgba(96, 165, 250, 0.28), transparent 52%),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.4), transparent 70%);
  pointer-events: none;
}

.resume-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: radial-gradient(rgba(59, 130, 246, 0.14) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, black, transparent 92%);
  pointer-events: none;
}

.resume-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-section-x);
  background: rgba(248, 251, 255, 0.82);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 4px 24px rgba(30, 58, 95, 0.05);
}

.resume-topbar__back {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: var(--font-nav);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.resume-topbar__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #fff;
  background: var(--gradient-brand);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.resume-topbar__back:hover { color: var(--accent); }

.resume-topbar__actions {
  display: flex;
  gap: 0.75rem;
}

.btn-sm {
  font-size: var(--btn-font);
  font-weight: 600;
  padding: var(--btn-py) var(--btn-px);
  border-radius: 100px;
  border: 1px solid var(--border-medium);
  color: var(--accent);
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(8px);
  transition: all 0.3s;
}

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

.btn-sm--fill {
  background: var(--gradient-brand);
  border: none;
  color: #ffffff;
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-sm--fill:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

/* ─── Layout ─── */
.resume-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: var(--nav-w) 1fr;
  min-height: 100vh;
  padding-top: var(--header-h);
  max-width: 1240px;
  margin: 0 auto;
  gap: 0;
}

.resume-sidebar {
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  padding: 2.25rem 1.15rem 2rem 1.75rem;
  border-right: 1px solid var(--border-subtle);
  overflow-y: auto;
  background: rgba(255, 255, 255, 0.38);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.resume-sidebar__title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.resume-sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.resume-sidebar nav a {
  font-size: 0.82rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  color: var(--text-secondary);
  border-left: 2px solid transparent;
  transition: all 0.3s;
}

.resume-sidebar nav a:hover,
.resume-sidebar nav a.active {
  color: var(--accent);
  background: var(--accent-soft);
  border-left-color: var(--accent);
}

.resume-sidebar nav a {
  font-size: 0.84rem;
  font-weight: 500;
  padding: 0.55rem 0.85rem;
  border-radius: 10px;
  color: var(--text-secondary);
  border-left: 3px solid transparent;
  transition: all 0.3s var(--ease);
}

.resume-sidebar nav a:hover,
.resume-sidebar nav a.active {
  color: var(--accent);
  background: linear-gradient(90deg, var(--accent-soft), transparent);
  border-left-color: var(--accent);
}

.resume-main {
  padding: clamp(2rem, 4vw, 3rem) clamp(1.5rem, 4vw, 2.75rem) 5rem;
}

/* ─── Hero ─── */
.resume-hero {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  padding: clamp(1.75rem, 3vw, 2.5rem) clamp(1.75rem, 3.5vw, 2.75rem);
  border-radius: var(--radius-lg);
  background: var(--gradient-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.resume-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-brand);
}

.resume-hero::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: min(420px, 55vw);
  height: min(420px, 55vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.18), transparent 68%);
  pointer-events: none;
}

.resume-hero__photo {
  position: relative;
  width: clamp(120px, 16vw, 156px);
  height: clamp(120px, 16vw, 156px);
  border-radius: 22px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.22);
  z-index: 1;
}

.resume-hero__photo::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 3px;
  background: var(--gradient-brand);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}

.resume-hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.resume-hero__body {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.resume-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.resume-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.65rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.resume-hero h1 span {
  font-style: normal;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.resume-hero__role {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.5vw, 1.08rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.1rem;
}

.resume-hero__metrics {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  margin: 0 0 1.15rem;
  padding: 0;
}

.resume-hero__metrics li {
  font-size: 0.78rem;
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.resume-hero__metrics strong {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--accent);
  margin-right: 0.2rem;
}

.resume-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.resume-hero__tags span {
  font-family: var(--font-mono);
  font-size: var(--font-caption);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.55);
  transition: transform 0.25s var(--ease), box-shadow 0.25s;
}

.resume-hero__tags span:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.12);
}

.resume-hero__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  font-size: 0.8rem;
  margin-top: 0.15rem;
}

.resume-hero__contact a {
  color: var(--text-secondary);
  font-weight: 500;
  padding-bottom: 0.1rem;
  border-bottom: 1px solid rgba(59, 130, 246, 0.22);
  transition: color 0.3s, border-color 0.3s;
}

.resume-hero__contact a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ─── Sections ─── */
.resume-section {
  margin-bottom: clamp(2.75rem, 5vw, 4rem);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.resume-section__title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  text-transform: none;
  color: var(--text-primary);
  margin-bottom: 1.65rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.resume-section__title::after {
  content: '';
  flex: 1;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.35), rgba(6, 182, 212, 0.12), transparent);
}

.resume-section__lead {
  font-size: var(--font-lead);
  color: var(--text-muted);
  margin: -0.85rem 0 1.65rem;
  max-width: 52ch;
  line-height: 1.65;
}

.resume-summary {
  position: relative;
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.88;
  max-width: none;
  padding: clamp(1.5rem, 3vw, 2rem) clamp(1.65rem, 3vw, 2.15rem);
  padding-left: clamp(1.85rem, 3.2vw, 2.35rem);
  border-radius: var(--radius-lg);
  background: var(--gradient-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
}

.resume-summary::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1.15rem;
  bottom: 1.15rem;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--gradient-brand);
}

/* ─── Achievement cards ─── */
.achieve-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.achieve-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.35rem 1.45rem;
  min-height: 100%;
  background: var(--gradient-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.68;
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s, border-color 0.35s;
}

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

.achieve-card--wide {
  grid-column: 1 / -1;
}

.achieve-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 12px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #fff;
  background: var(--gradient-brand);
  box-shadow: 0 6px 16px var(--accent-glow);
  flex-shrink: 0;
}

.achieve-card p { margin: 0; }

.achieve-card p em {
  font-style: normal;
  color: var(--text-primary);
  font-weight: 500;
}

/* ─── Experience timeline cards ─── */
.exp-timeline {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  padding-left: 1.25rem;
}

.exp-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.75rem;
  bottom: 0.75rem;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), rgba(59, 130, 246, 0.12));
}

.exp-card {
  position: relative;
  background: var(--gradient-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
  box-shadow: var(--shadow-sm);
}

.exp-card::before {
  content: '';
  position: absolute;
  left: -1.31rem;
  top: 1.65rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.18);
  z-index: 1;
}

.exp-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.exp-card.open {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg);
}

.exp-card__header {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 1rem 1.5rem;
  padding: 1.35rem 1.5rem;
  text-align: left;
}

.exp-card__header h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.2rem;
}

.exp-card__org {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

.exp-card__header > .exp-card__when {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
  padding: 0.35rem 0.65rem;
  border-radius: 100px;
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
}

.exp-card__toggle {
  font-size: 0.75rem;
  color: var(--accent);
  margin-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.exp-card__toggle::after {
  content: '↓';
  transition: transform 0.3s;
}

.exp-card.open .exp-card__toggle::after {
  transform: rotate(180deg);
}

.exp-card__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease);
}

.exp-card.open .exp-card__body {
  max-height: 800px;
}

.exp-card__inner {
  padding: 0 1.5rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.25rem;
}

.exp-card__inner ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.exp-card__inner li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 1rem;
  position: relative;
  line-height: 1.6;
}

.exp-card__inner li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.7rem;
}

/* ─── Project showcase (interactive) ─── */
.project-showcase__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 2rem 0 0.75rem;
  padding-left: 0.15rem;
}

.project-showcase__label:first-of-type {
  margin-top: 0;
}

.project-showcase {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 0;
  background: var(--gradient-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 0.5rem;
  transition: border-color 0.3s, box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
  box-shadow: var(--shadow-md);
}

.project-showcase:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.project-showcase--reverse {
  direction: rtl;
}

.project-showcase--reverse > * {
  direction: ltr;
}

.project-showcase__tabs {
  display: flex;
  flex-direction: column;
  padding: 0;
  border-right: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.28);
}

.project-showcase--reverse .project-showcase__tabs {
  border-right: none;
  border-left: 1px solid var(--border-subtle);
}

.project-tab {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.3s;
}

.project-tab:last-child { border-bottom: none; }

.project-tab:hover { background: var(--accent-soft); }

.project-tab.active {
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.14), rgba(6, 182, 212, 0.06));
  border-left: 3px solid var(--accent);
  box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.08);
}

.project-tab__year {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.project-tab h4 {
  font-size: 0.88rem;
  font-weight: 600;
  margin: 0.25rem 0;
  line-height: 1.35;
}

.project-tab p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.project-showcase__panel {
  position: relative;
  min-height: 280px;
  background: rgba(237, 246, 255, 0.45);
}

.project-panel {
  display: none;
  height: 100%;
  flex-direction: column;
}

.project-panel.active {
  display: flex;
}

.project-panel__gallery {
  position: relative;
  flex: 1;
  min-height: 200px;
  overflow: hidden;
  cursor: pointer;
  background: #e2ecf8;
}

.project-panel__gallery img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.project-panel__gallery img.active { opacity: 1; }

.project-panel__gallery-dots {
  position: absolute;
  bottom: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.4rem;
  z-index: 2;
}

.gallery-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(45, 74, 107, 0.25);
  transition: background 0.3s, transform 0.3s;
}

.gallery-dot.active {
  background: var(--accent);
  transform: scale(1.3);
}

.project-panel__info {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(10px);
}

.project-panel__tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.project-panel__info p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.project-panel__link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
}

.project-panel__link:hover { color: var(--accent-bright); }

.project-panel__visual {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(147, 197, 253, 0.12));
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ─── Skills grid ─── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.skill-group {
  padding: 1.45rem 1.5rem;
  background: var(--gradient-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  transition: border-color 0.3s, box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
  box-shadow: var(--shadow-sm);
}

.skill-group:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.skill-group h4 {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-tags span {
  font-size: 0.78rem;
  padding: 0.35rem 0.7rem;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  color: var(--text-secondary);
  transition: all 0.25s var(--ease);
  cursor: default;
}

.skill-tags span:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  background: var(--accent-soft);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
}

/* ─── Publications ─── */
.pub-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.pub-card {
  padding: 1.35rem 1.5rem;
  border-radius: var(--radius);
  background: var(--gradient-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.3s, box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}

.pub-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
  transform: translateX(6px);
}

.pub-item__meta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
  padding: 0.25rem 0.55rem;
  border-radius: 100px;
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
}

.pub-card h4 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.45;
  margin-bottom: 0.4rem;
}

.pub-item__authors {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
  line-height: 1.5;
}

.pub-card a {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
}

.pub-card a:hover { color: var(--accent-bright); }

/* ─── Education & awards timeline cards ─── */
.timeline-cards {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  position: relative;
  padding-left: 1.25rem;
}

.timeline-cards::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), rgba(59, 130, 246, 0.1));
}

.timeline-card {
  position: relative;
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1.25rem;
  align-items: start;
  padding: 1.25rem 1.45rem;
  border-radius: var(--radius);
  background: var(--gradient-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.3s, box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}

.timeline-card::before {
  content: '';
  position: absolute;
  left: -1.31rem;
  top: 1.55rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.16);
}

.timeline-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.timeline-cards--compact .timeline-card {
  padding: 1rem 1.25rem;
}

.timeline-card__year {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  padding-top: 0.15rem;
  white-space: nowrap;
}

.timeline-card__body h4 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 0.25rem;
  line-height: 1.35;
}

.timeline-card__body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ─── Reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

/* ─── Mobile ─── */
.resume-mobile-nav {
  display: none;
  position: sticky;
  top: var(--header-h);
  z-index: 50;
  overflow-x: auto;
  padding: 0.85rem 1rem;
  background: rgba(248, 251, 255, 0.9);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-subtle);
  gap: 0.5rem;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 4px 16px rgba(30, 58, 95, 0.04);
}

.resume-mobile-nav a {
  flex-shrink: 0;
  font-size: 0.72rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  color: var(--text-secondary);
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.45);
}

.resume-mobile-nav a.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

/* Shared token bindings for resume cards */
.exp-card h3,
.project-showcase h3,
.achieve-card h3,
.pub-card h3,
.timeline-card h3,
.skill-group h3 {
  font-size: var(--font-card-title);
}

.exp-card p,
.project-showcase p,
.achieve-card p,
.skill-group li {
  font-size: var(--font-card-body);
}

@media (max-width: 900px) {
  .resume-layout {
    grid-template-columns: 1fr;
  }

  .resume-sidebar { display: none; }

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

  .resume-hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 1.75rem 1.5rem;
  }

  .resume-hero__photo {
    margin: 0 auto;
  }

  .resume-hero__metrics,
  .resume-hero__tags {
    justify-content: center;
  }

  .resume-hero__contact {
    justify-content: center;
  }

  .project-showcase,
  .project-showcase--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .project-showcase__tabs {
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }

  .project-tab {
    flex-shrink: 0;
    min-width: 200px;
    border-bottom: none;
    border-right: 1px solid var(--border-subtle);
  }

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

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

  .achieve-card--wide { grid-column: auto; }

  .exp-timeline {
    padding-left: 0;
  }

  .exp-timeline::before,
  .exp-card::before {
    display: none;
  }

  .exp-card__header {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .exp-card__header > .exp-card__when {
    grid-column: 1;
    grid-row: auto;
    justify-self: start;
  }

  .timeline-cards {
    padding-left: 0;
  }

  .timeline-cards::before,
  .timeline-card::before {
    display: none;
  }

  .timeline-card {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}

@media print {
  .resume-topbar, .resume-sidebar, .resume-mobile-nav, .resume-bg { display: none !important; }
  .resume-layout { grid-template-columns: 1fr; padding-top: 0; }
  .resume-main { padding: 1rem; }
  .exp-card__body { max-height: none !important; }
  .project-panel { display: flex !important; page-break-inside: avoid; }
  body { background: white; color: black; }
  .resume-section { page-break-inside: avoid; }
  .achieve-card,
  .exp-card,
  .project-showcase,
  .skill-group,
  .resume-hero,
  .resume-summary,
  .pub-card,
  .timeline-card {
    backdrop-filter: none;
    background: white;
    box-shadow: none;
    transform: none !important;
  }

  .exp-timeline::before,
  .exp-card::before,
  .timeline-cards::before,
  .timeline-card::before {
    display: none;
  }
}

#resume-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(45, 74, 107, 0.82);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
}

#resume-lightbox[hidden] { display: none !important; }

#resume-lightbox .lightbox__img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

#resume-lightbox .lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 2rem;
  color: #f8fbff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  transition: background 0.3s;
}

#resume-lightbox .lightbox__close:hover {
  background: rgba(255, 255, 255, 0.22);
}