:root {
  --bg: #000000;
  --glass: rgba(255, 255, 255, 0.06);
  --glass2: rgba(255, 255, 255, 0.09);
  --border: rgba(255, 255, 255, 0.1);
  --border2: rgba(255, 255, 255, 0.18);
  --text: #f5f5fa;
  --text2: rgba(255, 255, 255, 0.72);
  --text3: rgba(255, 255, 255, 0.5);
  --p1: #ffffff;
  --p2: #999999;
  --p3: #666666;
  --p4: #dddddd;
  --p5: #bbbbbb;
  --glow1: rgba(255, 255, 255, 0.18);
  --sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "JetBrains Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  top: -120px;
  left: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  right: -100px;
  bottom: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 0;
}

.site-brand {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--p1);
}

.layout {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  max-width: 1080px;
  margin: 0 auto;
  width: 100%;
}

.left-side {
  position: sticky;
  top: 68px;
  width: 360px;
  height: calc(100vh - 68px);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 28px 20px 20px;
  overflow: hidden;
}

.optical-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.optical-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.18);
  text-transform: uppercase;
}

@property --x {
  syntax: "<percentage>";
  inherits: true;
  initial-value: 0%;
}

.optical {
  position: relative;
  width: min(280px, 90%);
  aspect-ratio: 6 / 4;
  --stripe-px: 7px;
  animation-name: body-scroll;
  animation-duration: 1ms;
  animation-timing-function: linear;
  animation-timeline: scroll(root);
}

.optical-figure {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.02));
  border-radius: 18px;
  filter: invert(1);
  mix-blend-mode: screen;
}

.optical::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  background-image: linear-gradient(90deg, #000 0 80%, transparent 0 100%);
  background-size: var(--stripe-px) 100%;
  background-repeat: repeat;
  background-position-x: var(--x);
  z-index: 1;
}

@keyframes body-scroll {
  from {
    --x: 0%;
  }
  to {
    --x: 100%;
  }
}

.right-side {
  flex: 1;
  min-height: 100vh;
}

.page-wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: 0 20px 48px;
}

.card {
  background: transparent;
  border: none;
  border-radius: 16px;
  padding: 22px 20px;
  margin-bottom: 16px;
}

.profile-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0;
}

.avatar-wrap {
  position: relative;
  width: 160px;
  height: 160px;
  margin-bottom: 8px;
}

.avatar-ring {
  display: block;
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: linear-gradient(135deg, #fff, #555);
  padding: 3px;
}

.avatar-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
}

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

.avatar-hint {
  margin-bottom: 16px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text3);
  letter-spacing: 0.08em;
}

.profile-name {
  margin-bottom: 6px;
  font-size: 22px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--p1), var(--p2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.profile-sub {
  max-width: 320px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--text3);
}

.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.ptag,
.stag,
.chat-prompt-btn {
  backdrop-filter: blur(6px);
}

.ptag {
  padding: 4px 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  color: var(--p4);
  background: rgba(255, 255, 255, 0.04);
}

.social-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.stag {
  padding: 7px 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--p4);
  background: rgba(255, 255, 255, 0.04);
}

.stag-purple {
  color: var(--p1);
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.06);
}

.stag-orange {
  color: var(--p2);
}

.stag-mint {
  color: var(--p5);
}

.sec-title {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text3);
  letter-spacing: 0.06em;
}

.sec-title::before {
  content: "";
  display: inline-block;
  width: 3px;
  height: 13px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--p1), var(--p2));
}

.stats-row {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.stat-box {
  flex: 1;
  min-width: calc(50% - 5px);
  background: var(--glass2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  text-align: center;
}

.stat-val {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  background: linear-gradient(90deg, var(--p1), var(--p2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  margin-top: 2px;
  font-size: 11px;
  color: var(--text3);
}

.bar-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bar-item label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 5px;
  font-size: 12px;
  color: var(--text2);
}

.bar-item label span {
  font-family: var(--mono);
  color: var(--text3);
}

.bar-track {
  height: 6px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--p1), var(--p2));
}

.bar-fill.orange {
  background: linear-gradient(90deg, var(--p3), var(--p2));
}

.bar-fill.mint {
  background: linear-gradient(90deg, var(--p5), var(--p4));
}

.roast-text,
.dim-body,
.chat-bubble,
footer {
  color: var(--text2);
}

.roast-text {
  font-size: 14px;
  line-height: 1.8;
}

.dim-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dim-item {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
}

.dim-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.dim-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--glass2);
  font-size: 18px;
}

.dim-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.dim-body {
  font-size: 13px;
  line-height: 1.7;
}

.chat-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 14px;
}

.chat-msg {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  max-width: 88%;
}

.chat-msg.user {
  margin-left: auto;
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--glass2);
  font-size: 14px;
}

.chat-bubble {
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.6;
}

.chat-msg.bot .chat-bubble {
  border: 1px solid var(--border);
  border-radius: 4px 14px 14px 14px;
  background: var(--glass2);
}

.chat-msg.user .chat-bubble {
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 14px 4px 14px 14px;
  background: transparent;
  color: var(--text);
}

.chat-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.chat-prompt-btn {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--border2);
  border-radius: 20px;
  background: var(--glass);
  color: var(--text2);
  font-size: 12px;
}

.skill-unlock-btn,
.download-btn,
.generate-btn,
.share-btn {
  transition: background 0.2s, border-color 0.2s, color 0.2s, opacity 0.2s;
  text-decoration: none;
}

.skill-unlock-btn {
  display: block;
  margin-top: 14px;
  padding: 11px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}

.skill-unlock-btn:hover,
.download-btn:hover,
.share-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.35);
}

.code-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.4);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--p4);
}

.code-copy {
  flex-shrink: 0;
  white-space: nowrap;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--glass2);
  color: var(--text3);
  font-family: var(--sans);
  font-size: 11px;
  cursor: pointer;
}

.skill-progress {
  margin-bottom: 18px;
}

.skill-progress-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 7px;
  font-size: 12px;
  color: var(--text3);
}

.skill-progress-header span:last-child {
  font-family: var(--mono);
  color: var(--p5);
}

.progress-track {
  height: 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}

.progress-fill {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--p5), var(--p4));
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.15);
}

.download-btn {
  display: block;
  width: 100%;
  padding: 11px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--p1);
  text-align: center;
  font-size: 14px;
  font-weight: 600;
}

.generate-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(280px, 90%);
  padding: 13px;
  border-radius: 10px;
  background: #fff;
  color: #000;
  font-size: 14px;
  font-weight: 700;
}

.generate-btn:hover {
  opacity: 0.85;
}

.share-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.share-btn {
  flex: 1;
  min-width: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--glass);
  color: var(--text2);
  font-size: 13px;
  font-weight: 500;
}

footer {
  margin-top: 8px;
  padding: 20px 0 0;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 12px;
}

footer a {
  color: var(--p1);
}

@media (max-width: 768px) {
  .layout {
    flex-direction: column;
  }

  .left-side {
    position: relative;
    top: 0;
    width: 100%;
    height: auto;
    padding: 32px 20px 24px;
    border-bottom: 1px solid var(--border);
  }

  .right-side {
    width: 100%;
  }
}