:root {
  --bg: #0a0a0a;
  --bg-soft: #111317;
  --text: #edf7ff;
  --muted: #95a4ad;
  --accent-cyan: #3ad9ff;
  --accent-green: #32f3a2;
  --glass-bg: rgba(14, 19, 24, 0.62);
  --glass-border: rgba(88, 194, 228, 0.2);
  --glass-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --content-width: 980px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 10% 10%, rgba(58, 217, 255, 0.08), transparent 35%),
    radial-gradient(circle at 85% 5%, rgba(50, 243, 162, 0.07), transparent 40%),
    linear-gradient(180deg, #0a0a0a 0%, #0a0a0a 100%);
  color: var(--text);
  font-family: "Manrope", "Segoe UI", sans-serif;
  padding: 24px 16px 16px;
  overflow-x: hidden;
}

.bg-orb {
  position: fixed;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.3;
  z-index: -1;
  pointer-events: none;
}

.bg-orb-cyan {
  top: -70px;
  right: -40px;
  background: var(--accent-cyan);
}

.bg-orb-green {
  bottom: -80px;
  left: -60px;
  background: var(--accent-green);
}

.topbar {
  width: min(var(--content-width), 100%);
  margin: 0 auto 14px;
  display: flex;
  justify-content: flex-end;
}

.lang-toggle {
  border: 1px solid rgba(78, 207, 237, 0.36);
  background: rgba(16, 21, 26, 0.85);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.lang-toggle:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-1px);
  box-shadow: 0 0 0 4px rgba(58, 217, 255, 0.1);
}

.page {
  width: min(var(--content-width), 100%);
  margin: 0 auto;
}

.shell {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(19, 25, 30, 0.7), rgba(12, 16, 20, 0.66));
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 30px;
  display: grid;
  gap: 18px;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 14px 8px 18px;
  border-bottom: 1px solid rgba(82, 196, 222, 0.16);
}

.avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  border: 2px solid rgba(58, 217, 255, 0.55);
  box-shadow: 0 10px 28px rgba(58, 217, 255, 0.2);
  overflow: hidden;
  background: rgba(10, 16, 20, 0.8);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

h1 {
  margin: 0;
  font-size: clamp(1.9rem, 4.2vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

#hero-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.9rem, 2vw, 1.05rem);
}

.social {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.icon-btn {
  width: 46px;
  height: 46px;
  border-radius: 999px;
  border: 1px solid rgba(111, 204, 226, 0.23);
  background: rgba(15, 20, 24, 0.88);
  color: #cfe6f5;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  text-decoration: none;
}

.icon-btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

svg {
  width: 24px;
  height: 24px;
  display: block;
  flex-shrink: 0;
}

.copy-feedback {
  min-height: 1.2rem;
  margin: 0;
  color: var(--accent-green);
  font-size: 0.84rem;
  letter-spacing: 0.02em;
}

.panel {
  border: 1px solid rgba(88, 194, 228, 0.14);
  border-radius: var(--radius-md);
  background: rgba(12, 17, 21, 0.55);
  padding: 18px;
}

.section-title-row {
  margin-bottom: 12px;
}

h2 {
  margin: 0;
  font-size: 1.02rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #d6f2ff;
  font-family: "JetBrains Mono", "SFMono-Regular", monospace;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.stat-card {
  border: 1px solid rgba(91, 190, 213, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(8, 14, 18, 0.66);
  padding: 12px;
}

.stat-value {
  margin: 0;
  color: var(--accent-cyan);
  font-size: 1.35rem;
  line-height: 1;
  font-family: "JetBrains Mono", "SFMono-Regular", monospace;
}

.stat-label {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.77rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.timeline {
  position: relative;
  margin-left: 4px;
  padding-left: 16px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(58, 217, 255, 0.5), rgba(50, 243, 162, 0.4));
}

.timeline-item {
  position: relative;
  padding: 0 0 16px 16px;
}

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

.timeline-item::before {
  content: "";
  position: absolute;
  top: 5px;
  left: -5px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--accent-cyan), var(--accent-green));
  box-shadow: 0 0 0 3px rgba(58, 217, 255, 0.16);
}

.highlight-date {
  margin: 0;
  color: var(--accent-cyan);
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: "JetBrains Mono", "SFMono-Regular", monospace;
}

.highlight-title {
  margin: 5px 0 3px;
  font-size: 0.98rem;
}

.highlight-detail {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.badges-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.badge-card {
  border: 1px solid rgba(91, 190, 213, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(10, 15, 19, 0.68);
  padding: 12px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.badge-thumb {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  object-fit: cover;
  border: 1px solid rgba(58, 217, 255, 0.3);
  background: rgba(13, 18, 23, 0.85);
  flex-shrink: 0;
}

.badge-content {
  min-width: 0;
}

.badge-name {
  margin: 0;
  font-size: 0.95rem;
}

.badge-date {
  margin: 3px 0 4px;
  color: var(--accent-cyan);
  font-size: 0.71rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: "JetBrains Mono", "SFMono-Regular", monospace;
}

.badge-detail {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.writeups-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.writeup-card {
  border: 1px solid rgba(91, 190, 213, 0.14);
  border-radius: var(--radius-sm);
  background: rgba(9, 14, 18, 0.64);
  text-decoration: none;
  color: inherit;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
}

.writeup-card:hover {
  transform: translateY(-2px);
  border-color: rgba(58, 217, 255, 0.52);
  background: rgba(10, 18, 23, 0.82);
}

.writeup-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}

.writeup-title {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.32;
}

.writeup-date {
  margin: 0;
  color: var(--accent-cyan);
  font-size: 0.7rem;
  text-transform: uppercase;
  font-family: "JetBrains Mono", "SFMono-Regular", monospace;
  white-space: nowrap;
}

.writeup-summary {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.writeup-meta {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  border: 1px solid rgba(93, 202, 225, 0.2);
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 0.69rem;
  color: #bed7e4;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.empty-msg {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer {
  width: min(var(--content-width), 100%);
  margin: 14px auto 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
}

.reveal,
.reveal-item {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.64s ease, transform 0.64s ease;
}

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

@media (max-width: 960px) {
  .shell {
    padding: 24px 18px;
  }

  .badges-grid,
  .stats-grid,
  .writeups-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  body {
    padding: 14px 12px 16px;
  }

  .topbar {
    margin-bottom: 10px;
  }

  .shell {
    padding: 16px 12px;
    border-radius: 18px;
    gap: 12px;
  }

  .hero {
    padding: 10px 4px 14px;
  }

  .panel {
    padding: 13px;
  }

  .badges-grid,
  .stats-grid,
  .writeups-grid {
    grid-template-columns: 1fr;
  }

  .avatar {
    width: 78px;
    height: 78px;
    font-size: 1.42rem;
  }

  .icon-btn {
    width: 42px;
    height: 42px;
  }

  .badge-card {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  .reveal-item {
    opacity: 1;
    transform: none;
  }
}