@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");

:root {
  --bg:           #eef2ff;
  --surface:      #ffffff;
  --surface-2:    #f5f7ff;
  --border:       rgba(43, 108, 176, 0.13);

  --text-1:       #1a2035;
  --text-2:       #4a5568;
  --text-3:       #8896a8;

  --accent:       #2b6cb0;
  --accent-light: #4a90d9;
  --accent-soft:  rgba(43, 108, 176, 0.09);
  --accent-glow:  rgba(43, 108, 176, 0.22);

  --green:        #276749;
  --green-soft:   rgba(39, 103, 73, 0.09);
  --gold:         #b7791f;
  --gold-soft:    rgba(183, 121, 31, 0.09);
  --red:          #c53030;
  --red-soft:     rgba(197, 48, 48, 0.08);
  --purple:       #553c9a;
  --purple-soft:  rgba(85, 60, 154, 0.08);

  --glow-r: 43;
  --glow-g: 108;
  --glow-b: 176;

  --shadow-sm:  0 1px 4px rgba(0, 0, 0, 0.06);
  --shadow-md:  0 8px 28px rgba(15, 23, 42, 0.09);
  --shadow-lg:  0 18px 56px rgba(15, 23, 42, 0.13);

  --radius:     0.9rem;
  --radius-sm:  0.5rem;

  --ease:       cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast:     0.18s;
  --t-med:      0.28s;
  --t-slow:     0.5s;
}

[data-theme="dark"] {
  --bg:           #0d1117;
  --surface:      #161b22;
  --surface-2:    #1c2333;
  --border:       rgba(99, 149, 210, 0.16);

  --text-1:       #e6edf3;
  --text-2:       #8b949e;
  --text-3:       #57606a;

  --accent:       #58a6ff;
  --accent-light: #79bbff;
  --accent-soft:  rgba(88, 166, 255, 0.11);
  --accent-glow:  rgba(88, 166, 255, 0.24);

  --green:        #3fb950;
  --green-soft:   rgba(63, 185, 80, 0.11);
  --gold:         #e3b341;
  --gold-soft:    rgba(227, 179, 65, 0.11);
  --red:          #ff7b72;
  --red-soft:     rgba(255, 123, 114, 0.11);
  --purple:       #bc8cff;
  --purple-soft:  rgba(188, 140, 255, 0.11);

  --glow-r: 88;
  --glow-g: 166;
  --glow-b: 255;

  --shadow-sm:  0 1px 4px rgba(0, 0, 0, 0.35);
  --shadow-md:  0 8px 28px rgba(0, 0, 0, 0.45);
  --shadow-lg:  0 18px 56px rgba(0, 0, 0, 0.6);
}

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

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.65;
  overflow-x: hidden;
  transition: background var(--t-med) var(--ease),
              color      var(--t-med) var(--ease);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration:       0.01ms !important;
    animation-iteration-count: 1    !important;
    transition-duration:      0.01ms !important;
  }
  .cursor-glow { display: none; }
}

.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 340px; height: 340px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(var(--glow-r), var(--glow-g), var(--glow-b), 0.13) 0%,
    transparent 70%
  );
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 0;
  transition: opacity 0.4s var(--ease),
              background 0.6s var(--ease);
  opacity: 0;
}
.cursor-glow.visible { opacity: 1; }

.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  z-index: 300;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px var(--accent-glow);
}

.copy-toast {
  position: fixed;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%) translateY(4rem);
  background: var(--text-1);
  color: var(--surface);
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  z-index: 400;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--t-med) var(--ease),
              opacity   var(--t-med) var(--ease);
  white-space: nowrap;
}
.copy-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--t-med) var(--ease),
              box-shadow var(--t-med) var(--ease);
}
[data-theme="dark"] .site-header {
  background: rgba(22, 27, 34, 0.88);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}
.header-inner {
  max-width: 64rem;
  margin: 0 auto;
  padding: 1.1rem 1.5rem 0.85rem;
}
.header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.name-block { flex: 1 1 auto; }

.name {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  background: linear-gradient(
    120deg,
    var(--accent) 0%,
    var(--accent-light) 40%,
    #8b5cf6 70%,
    var(--accent) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 5s linear infinite;
}
@keyframes shimmer {
  0%   { background-position: 0%   center; }
  100% { background-position: 200% center; }
}

.tagline {
  margin: 0.35rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.tagline-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 500;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--border);
  transition: background var(--t-fast) var(--ease),
              transform  var(--t-fast) var(--ease);
}
.tagline-chip:hover {
  background: var(--accent-glow);
  transform: translateY(-2px) scale(1.04);
}

.hero-award {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.6rem;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--gold-soft), var(--accent-soft));
  border: 1px solid var(--gold);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gold);
  box-shadow: 0 4px 14px rgba(183, 121, 31, 0.18);
}
.hero-award-icon { font-size: 1rem; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-2);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  transition: background  var(--t-fast) var(--ease),
              transform   var(--t-fast) var(--ease),
              box-shadow  var(--t-fast) var(--ease);
}
.theme-toggle:hover {
  background: var(--accent-soft);
  transform: rotate(22deg) scale(1.1);
  box-shadow: 0 0 12px var(--accent-glow);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-print {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.42rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-2);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background  var(--t-fast) var(--ease),
              color       var(--t-fast) var(--ease),
              transform   var(--t-fast) var(--ease),
              box-shadow  var(--t-fast) var(--ease);
}
.btn-print:hover {
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--accent-glow);
}
.btn-print:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.main-nav { margin-top: 0.7rem; }
.main-nav ul {
  list-style: none;
  padding: 0; margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.main-nav a {
  display: block;
  text-decoration: none;
  color: var(--text-2);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.28rem 0.72rem;
  border-radius: 999px;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
  transition: color       var(--t-fast) var(--ease),
              background  var(--t-fast) var(--ease),
              transform   var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}

.main-nav a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  border-radius: 999px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s var(--ease);
  z-index: -1;
}
.main-nav a:hover::before,
.main-nav a.active::before {
  transform: scaleX(1);
}
.main-nav a:hover,
.main-nav a.active {
  color: #fff;
  transform: translateY(-1px);
}
.main-nav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.content-wrapper {
  max-width: 64rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

section.card[id] {
  scroll-margin-top: 110px;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity      var(--t-slow) var(--ease),
              transform    var(--t-slow) var(--ease),
              box-shadow   var(--t-med)  var(--ease),
              background   var(--t-med)  var(--ease),
              border-color var(--t-med)  var(--ease);
}
.card.visible {
  opacity: 1;
  transform: translateY(0);
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: radial-gradient(
    300px circle at var(--mouse-x, 0px) var(--mouse-y, 0px),
    rgba(var(--glow-r), var(--glow-g), var(--glow-b), 0.6),
    transparent 80%
  );
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--t-med) var(--ease);
  pointer-events: none;
}
.card:hover::before { opacity: 1; }
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--accent-glow);
}

.card { transform-style: preserve-3d; }

.card h2 {
  margin: 0 0 1.1rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.card h2::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border) 0%, transparent 100%);
}
.card h3 {
  margin: 1.25rem 0 0.35rem;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-1);
}
.card h3:first-of-type { margin-top: 0; }
.card p {
  margin: 0.25rem 0;
  color: var(--text-2);
  font-size: 0.92rem;
}
.card ul {
  margin: 0.4rem 0 0.7rem 1.1rem;
  padding: 0;
}
.card li {
  margin-bottom: 0.3rem;
  font-size: 0.91rem;
  color: var(--text-2);
}
.card a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-glow);
  transition: border-color var(--t-fast) var(--ease),
              color        var(--t-fast) var(--ease);
}
.card a:hover { border-color: var(--accent); }

.course-note {
  font-size: 0.86rem;
  color: var(--text-3);
  margin-bottom: 0.5rem !important;
}
.course-note strong { color: var(--text-2); }

.award-callout {
  background: var(--gold-soft);
  border-left: 4px solid var(--gold);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--text-1);
  margin-bottom: 1rem;
}

.contact-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.25rem;
}
.contact-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 0.87rem;
  color: var(--text-2);
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background  var(--t-fast) var(--ease),
              color       var(--t-fast) var(--ease),
              transform   var(--t-fast) var(--ease),
              box-shadow  var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}

.contact-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: translateX(-100%);
  transition: transform 0.25s var(--ease);
  z-index: 0;
}
.contact-item:hover::after { transform: translateX(0); }
.contact-item:hover {
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--accent-glow);
}
.contact-item > * { position: relative; z-index: 1; }
.contact-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.5rem 0 0.75rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.77rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease);
}
.badge:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}
.badge-blue   { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent-glow); }
.badge-green  { background: var(--green-soft);  color: var(--green);  border: 1px solid rgba(39,103,73,0.18); }
.badge-gold   { background: var(--gold-soft);   color: var(--gold);   border: 1px solid rgba(183,121,31,0.22); }

.section-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.5rem 0.6rem;
  margin: 0.85rem 0 0;
  border: none;
  background: transparent;
  font-family: inherit;
  color: var(--text-1); 
  cursor: pointer;
  border-radius: var(--radius-sm);
  text-align: left;
  transition: background var(--t-fast) var(--ease),
              color      var(--t-fast) var(--ease);
}
.section-toggle:hover { background: var(--accent-soft); color: var(--accent) !important; }
.section-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.section-toggle span:first-child {
  font-size: 0.97rem;
  font-weight: 600;
  color: currentColor;
}
.toggle-icon {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 0.65rem;
  flex-shrink: 0;
  transition: transform var(--t-med) var(--ease),
              background var(--t-fast) var(--ease);
}
.toggle-icon::before { content: '▾'; }
.section-toggle[aria-expanded="false"] .toggle-icon {
  transform: rotate(-90deg);
}
.section-toggle:hover .toggle-icon {
  background: var(--accent);
  color: #fff !important;
}

.collapsible-body {
  overflow: hidden;
  transition: max-height 0.38s var(--ease),
              opacity    0.3s  var(--ease);
  opacity: 1;
}
.collapsible-body.closed {
  max-height: 0 !important;
  opacity: 0;
}

.award-list {
  list-style: none;
  margin: 0.3rem 0 0.5rem;
  padding: 0;
}
.award-list li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-2);
  transition: background  var(--t-fast) var(--ease),
              color       var(--t-fast) var(--ease),
              padding-left var(--t-fast) var(--ease);
}
.award-list li:last-child { border-bottom: none; }
.award-list li:hover {
  background: var(--accent-soft);
  color: var(--text-1);
  padding-left: 0.9rem;
}
.award-dot {
  flex-shrink: 0;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--dot-color, var(--accent));
  margin-top: 0.4rem;
  box-shadow: 0 0 5px var(--dot-color, var(--accent));
}

.experience-item {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  margin-top: 0.75rem;
  position: relative;
  overflow: hidden;
  transition: background   var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              transform    var(--t-fast) var(--ease),
              box-shadow   var(--t-fast) var(--ease);
}

.experience-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: 3px 0 0 3px;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t-med) var(--ease);
}
.experience-item:hover::before { transform: scaleY(1); }
.experience-item:hover {
  background: var(--accent-soft);
  border-color: var(--accent-glow);
  transform: translateX(5px);
  box-shadow: var(--shadow-sm);
}
.exp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.exp-header h3 { margin: 0; }
.experience-tag {
  font-size: 0.77rem;
  font-weight: 600;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-glow);
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease),
              color      var(--t-fast) var(--ease);
}
.experience-item:hover .experience-tag {
  background: var(--accent);
  color: #fff;
}
.experience-item ul { margin: 0.5rem 0 0 1.1rem; }

.skill-category { margin-top: 0; }
.skill-category + .skill-category { margin-top: 1.25rem; }
.skill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.45rem;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.32rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
  position: relative;
  overflow: hidden;
  transition: color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease);
}

.skill-tag::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--accent);
  transform: scale(0);
  transition: transform 0.22s var(--ease);
  z-index: 0;
}

.skill-tag:active::before { transform: scale(1); }

.skill-tag:active {
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 6px 16px var(--accent-glow);
  transform: translateY(-3px) scale(1.04);
}

.skill-tag > * { position: relative; z-index: 1; }

.skill-tag[data-color="green"]:active::before   { background: var(--green); }
.skill-tag[data-color="green"]:active          { border-color: var(--green); box-shadow: 0 6px 16px var(--green-soft); }
.skill-tag[data-color="gold"]:active::before    { background: var(--gold); }
.skill-tag[data-color="gold"]:active           { border-color: var(--gold); box-shadow: 0 6px 16px var(--gold-soft); }
.skill-tag[data-color="red"]:active::before    { background: var(--red); }
.skill-tag[data-color="red"]:active            { border-color: var(--red); box-shadow: 0 6px 16px var(--red-soft); }
.skill-tag[data-color="purple"]:active::before { background: var(--purple); }
.skill-tag[data-color="purple"]:active         { border-color: var(--purple); box-shadow: 0 6px 16px var(--purple-soft); }
.skill-tag[data-color="teal"]:active::before   { background: #0d9488; }
.skill-tag[data-color="teal"]:active           { border-color: #0d9488; box-shadow: 0 6px 16px rgba(13,148,136,0.2); }
.skill-tag[data-color="orange"]:active::before { background: #c05621; }
.skill-tag[data-color="orange"]:active         { border-color: #c05621; box-shadow: 0 6px 16px rgba(192,86,33,0.2); }
.skill-tag[data-color="yellow"]:active::before { background: #975a16; }
.skill-tag[data-color="yellow"]:active         { border-color: #975a16; }

.site-footer {
  text-align: center;
  padding: 1.5rem 1rem 2.5rem;
  font-size: 0.85rem;
  color: var(--text-3);
  position: relative;
  z-index: 1;
}

@media print {
  .site-header { position: static; }
  .scroll-progress,
  .theme-toggle,
  .btn-print,
  .cursor-glow { display: none; }
  .card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
    opacity: 1 !important;
    transform: none !important;
  }
  body { background: #fff; color: #111; }
}

@media (max-width: 48rem) {
  .card { padding: 1.25rem 1.1rem; }
  .content-wrapper { padding: 1.25rem 1rem 3rem; gap: 1rem; }
}

/*addons*/

.section-toggle span:first-child {
  color: var(--text-1) !important;
}
.section-toggle:hover span:first-child {
  color: var(--accent) !important;
}