:root {
  --bg: #0d1117;
  --bg-elevated: rgba(13, 17, 23, 0.85);
  --accent: #00d2ff;
  --accent-soft: rgba(0, 210, 255, 0.16);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-primary: #f4f5f7;
  --text-secondary: #9fa6b2;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.75);
  --radius-lg: 18px;
  --radius-xl: 26px;
  --transition-fast: 180ms ease-out;
  --transition-med: 260ms ease-out;
}

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

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at top, #161b22 0, #05070a 40%, #000 100%);
  color: var(--text-primary);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  letter-spacing: 0.02em;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.background-glow {
  position: fixed;
  inset: -20%;
  background:
    radial-gradient(circle at 5% 0%, rgba(0, 210, 255, 0.18), transparent 55%),
    radial-gradient(circle at 90% 20%, rgba(88, 166, 255, 0.18), transparent 55%),
    radial-gradient(circle at 30% 100%, rgba(0, 210, 255, 0.22), transparent 60%);
  opacity: 0.9;
  mix-blend-mode: screen;
  pointer-events: none;
  z-index: -2;
}

.glass {
  background: linear-gradient(
    145deg,
    rgba(13, 17, 23, 0.9),
    rgba(13, 17, 23, 0.7)
  );
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(28px) saturate(160%);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 120px 24px 40px;
}

.section-header {
  margin-bottom: 32px;
}

.section-header h3 {
  font-size: 1.4rem;
  margin: 0 0 8px;
  font-weight: 600;
}

.section-header p {
  margin: 0;
  color: var(--text-secondary);
  max-width: 520px;
}

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.accent {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  background: rgba(13, 17, 23, 0.85);
  color: var(--text-primary);
  box-shadow: 0 0 0 1px rgba(0, 210, 255, 0),
    0 18px 40px rgba(0, 0, 0, 0.6);
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    box-shadow 260ms ease-out,
    transform var(--transition-fast),
    border-color var(--transition-fast);
}

.btn.primary {
  background: radial-gradient(circle at 0% 0%, #00d2ff, #0079ff);
  color: #02040a;
  border-color: rgba(255, 255, 255, 0.45);
}

.btn.ghost {
  background: rgba(6, 10, 15, 0.8);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow:
    0 0 0 1px rgba(0, 210, 255, 0.25),
    0 20px 55px rgba(0, 0, 0, 0.85);
  border-color: rgba(0, 210, 255, 0.45);
}

.btn:active {
  transform: translateY(0);
  box-shadow:
    0 0 0 1px rgba(0, 210, 255, 0.35),
    0 12px 30px rgba(0, 0, 0, 0.9);
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 20px 10px;
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.navbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 16px;
  border: 1px solid rgba(0, 210, 255, 0.4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 0 0, #00d2ff, #0066ff);
  color: #02040a;
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 0.96rem;
  font-weight: 600;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 0.9rem;
}

.nav-links a {
  color: var(--text-secondary);
  position: relative;
  padding-bottom: 4px;
  transition:
    color var(--transition-fast),
    transform var(--transition-fast);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #00d2ff, #58a6ff);
  transition: width var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-primary);
  transform: translateY(-1px);
}

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

.nav-social {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon {
  width: 18px;
  height: 18px;
  fill: var(--text-secondary);
  transition:
    fill var(--transition-fast),
    transform var(--transition-fast),
    filter var(--transition-fast);
}

.nav-social a:hover .icon {
  fill: var(--accent);
  filter: drop-shadow(0 0 12px rgba(0, 210, 255, 0.7));
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(6, 10, 15, 0.9);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  width: 66%;
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.active span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.active span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.4fr);
  gap: 40px;
  align-items: center;
  padding-top: 140px;
}

.hero-content {
  max-width: 560px;
}

.hero h1 {
  font-size: clamp(2.3rem, 3vw, 2.9rem);
  margin: 12px 0 8px;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.02rem;
  font-weight: 500;
  margin: 6px 0 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.hero-description {
  margin: 0 0 18px;
  color: var(--text-secondary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}

.hero-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
  opacity: 0.9;
}

.typing {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(0, 210, 255, 0.45);
  background: radial-gradient(circle at 0 0, rgba(0, 210, 255, 0.24), transparent 55%);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.86rem;
}

#typing-text {
  min-width: 10ch;
}

.caret {
  width: 1px;
  height: 1em;
  background: var(--accent);
  animation: caret 1s steps(2, start) infinite;
}

@keyframes caret {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
}

.orbit-card {
  width: 100%;
  max-width: 360px;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-xl);
  position: relative;
  padding: 20px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(circle at 0% 0%, rgba(0, 210, 255, 0.4), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(88, 166, 255, 0.35), transparent 50%),
    linear-gradient(145deg, rgba(13, 17, 23, 0.95), rgba(6, 11, 19, 0.85));
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  overflow: hidden;
}

.orbit-core {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(2, 4, 10, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.92rem;
  box-shadow: 0 0 30px rgba(0, 210, 255, 0.6);
}

.orbit-core span:first-child,
.orbit-core span:last-child {
  font-weight: 600;
}

.x-symbol {
  font-size: 1rem;
  color: var(--accent);
}

.orbit {
  position: absolute;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  font-size: 0.76rem;
  background: rgba(6, 10, 15, 0.92);
  color: var(--text-secondary);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  animation: orbit 14s linear infinite;
  transform-origin: center;
}

.orbit-1 {
  top: 18%;
  left: 10%;
}
.orbit-2 {
  bottom: 20%;
  right: 6%;
  animation-duration: 18s;
}
.orbit-3 {
  bottom: 10%;
  left: 16%;
  animation-duration: 20s;
}

@keyframes orbit {
  0% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
  50% {
    transform: translate3d(4px, -4px, 0) rotate(180deg);
  }
  100% {
    transform: translate3d(0, 0, 0) rotate(360deg);
  }
}

.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.chip {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 6px 12px;
  font-size: 0.8rem;
  background: rgba(6, 10, 15, 0.84);
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.chip:hover {
  border-color: rgba(0, 210, 255, 0.6);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.chip.active {
  background: radial-gradient(circle at 0 0, #00d2ff, #006eff);
  color: #02040a;
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 18px rgba(0, 210, 255, 0.75);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.project-card {
  position: relative;
  cursor: pointer;
  transform-origin: center;
  transition:
    transform var(--transition-med),
    box-shadow var(--transition-med),
    border-color var(--transition-med),
    background var(--transition-med),
    opacity var(--transition-med),
    filter var(--transition-med);
}

.project-card .card-inner {
  padding: 16px 14px 14px;
  border-radius: 16px;
  background: linear-gradient(
    145deg,
    rgba(13, 17, 23, 0.9),
    rgba(13, 17, 23, 0.78)
  );
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow:
    0 0 0 1px rgba(0, 210, 255, 0),
    0 18px 45px rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.project-card h4 {
  margin: 0 0 6px;
  font-size: 0.98rem;
}

.project-tagline {
  margin: 0 0 10px;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.meta-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 6px;
  align-items: baseline;
  font-size: 0.78rem;
}

.meta-label {
  color: rgba(159, 166, 178, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.meta-value {
  color: var(--text-primary);
}

.project-card:hover .card-inner {
  box-shadow:
    0 0 0 1px rgba(0, 210, 255, 0.36),
    0 24px 60px rgba(0, 0, 0, 0.9);
  transform: translateY(-4px);
}

.project-card.dimmed {
  opacity: 0.32;
  filter: grayscale(0.4);
}

.project-card.highlight .card-inner {
  box-shadow:
    0 0 0 1px rgba(0, 210, 255, 0.9),
    0 0 26px rgba(0, 210, 255, 0.95);
  transform: translateY(-3px);
}

.drawer {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
}

.drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 4, 10, 0.86);
  opacity: 0;
  transition: opacity var(--transition-med);
}

.drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(480px, 100%);
  transform: translateX(100%);
  background: linear-gradient(
    150deg,
    rgba(13, 17, 23, 0.98),
    rgba(3, 6, 12, 0.98)
  );
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: -32px 0 60px rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  transition: transform 260ms cubic-bezier(0.23, 1, 0.32, 1);
}

.drawer.open {
  pointer-events: auto;
}

.drawer.open .drawer-backdrop {
  opacity: 1;
}

.drawer.open .drawer-panel {
  transform: translateX(0);
}

.drawer-content {
  padding: 20px 24px 24px;
  height: 100%;
  overflow-y: auto;
}

.drawer-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(6, 10, 15, 0.95);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.86rem;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.drawer-close:hover {
  background: rgba(0, 210, 255, 0.15);
  color: var(--accent);
  transform: translateY(-1px);
}

.drawer-eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 6px;
}

.drawer h3 {
  margin: 0 0 6px;
}

.drawer-subtitle {
  margin: 0 0 12px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.drawer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.drawer-tag {
  padding: 4px 8px;
  font-size: 0.76rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text-secondary);
  background: rgba(6, 10, 15, 0.9);
}

.drawer-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.gallery-item {
  padding: 16px 10px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
  border-radius: 14px;
  border: 1px dashed rgba(255, 255, 255, 0.14);
}

.drawer-markdown {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.drawer-markdown h4 {
  font-size: 0.96rem;
  margin: 12px 0 6px;
  color: var(--text-primary);
}

.drawer-markdown ul {
  padding-left: 18px;
}

.drawer-markdown li + li {
  margin-top: 4px;
}

.insights-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.8fr);
  gap: 28px;
}

.insight-keywords {
  padding: 16px 16px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  background: linear-gradient(
    145deg,
    rgba(13, 17, 23, 0.95),
    rgba(13, 17, 23, 0.75)
  );
}

.keyword-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 16px;
}

.mindmap {
  position: relative;
  height: 220px;
  border-radius: 18px;
  background: radial-gradient(circle at 20% 0, #00d2ff1c, transparent 70%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.mindmap-lines {
  position: absolute;
  inset: 0;
  stroke: rgba(0, 210, 255, 0.24);
  stroke-width: 1;
  stroke-linecap: round;
}

.node {
  position: absolute;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  background: rgba(6, 10, 15, 0.9);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    background var(--transition-fast);
}

.node.core {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle at 0 0, #00d2ff, #006eff);
  color: #02040a;
  box-shadow: 0 0 25px rgba(0, 210, 255, 0.85);
  font-weight: 600;
}

.node.n1 {
  left: 13%;
  top: 16%;
}
.node.n2 {
  right: 10%;
  top: 20%;
}
.node.n3 {
  left: 10%;
  bottom: 14%;
}
.node.n4 {
  right: 10%;
  bottom: 14%;
}
.node.n5 {
  left: 50%;
  top: 14%;
  transform: translateX(-50%);
}

.node.active,
.node:hover:not(.core) {
  border-color: rgba(0, 210, 255, 0.7);
  color: var(--accent);
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.8);
  transform: translateY(-1px);
}

.insight-detail {
  padding: 18px 18px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(
    150deg,
    rgba(13, 17, 23, 0.96),
    rgba(6, 10, 17, 0.96)
  );
  box-shadow: var(--shadow-soft);
}

.insight-detail h4 {
  margin-top: 0;
}

.insight-detail p {
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.insight-detail ul {
  padding-left: 20px;
  color: var(--text-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.about-card {
  padding: 18px 16px 20px;
}

.about-card h4 {
  margin: 0 0 8px;
}

.about-card p {
  color: var(--text-secondary);
}

.about-list {
  padding-left: 18px;
  color: var(--text-secondary);
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 10px 0 12px;
}

.about-tags li {
  font-size: 0.8rem;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(6, 10, 15, 0.85);
}

.about-note {
  font-size: 0.86rem;
}

.contact-panel {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  padding: 18px 18px 16px;
}

.contact-text {
  margin: 0 0 10px;
  color: var(--text-secondary);
}

.contact-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.contact-hint {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.chat-widget {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 70;
}

.chat-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: radial-gradient(circle at 0% 0%, #00d2ff, #006eff);
  color: #02040a;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow:
    0 0 16px rgba(0, 210, 255, 0.8),
    0 18px 40px rgba(0, 0, 0, 0.9);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    filter var(--transition-fast);
}

.chat-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #00ffae;
  box-shadow: 0 0 12px rgba(0, 255, 174, 0.9);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  70% {
    transform: scale(1.6);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 0;
  }
}

.chat-window {
  position: absolute;
  right: 0;
  bottom: 54px;
  width: min(320px, 100vw - 40px);
  max-height: 420px;
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition:
    opacity var(--transition-med),
    transform var(--transition-med);
}

.chat-window.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.chat-header {
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.chat-title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
}

.chat-subtitle {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.chat-close {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(6, 10, 15, 0.9);
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
}

.chat-body {
  padding: 10px 10px 8px;
  flex: 1;
  overflow-y: auto;
}

.chat-message {
  max-width: 88%;
  padding: 8px 10px;
  border-radius: 14px;
  font-size: 0.82rem;
  margin-bottom: 6px;
  line-height: 1.5;
}

.chat-message.bot {
  background: rgba(13, 17, 23, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-message.user {
  margin-left: auto;
  background: radial-gradient(circle at 0% 0%, #00d2ff, #006eff);
  color: #02040a;
}

.chat-quick-questions {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 8px 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chat-quick-questions .chip {
  font-size: 0.76rem;
}

.chat-link {
  color: var(--accent);
  font-weight: 500;
}

.reveal {
  /* 默认可见，避免在脚本异常时页面“空白” */
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 520ms cubic-bezier(0.19, 1, 0.22, 1),
    transform 520ms cubic-bezier(0.19, 1, 0.22, 1);
}

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

@media (max-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1.1fr);
  }

  .hero-visual {
    order: -1;
    justify-content: center;
  }

  .section {
    padding-top: 90px;
  }

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

  .insights-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .navbar-inner {
    align-items: center;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: fixed;
    inset: 54px 16px auto;
    padding: 10px 12px;
    border-radius: 16px;
    background: rgba(4, 8, 12, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.08);
    flex-direction: column;
    gap: 6px;
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition:
      opacity var(--transition-med),
      transform var(--transition-med);
  }

  .nav-links.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-social {
    display: none;
  }

  .hero {
    padding-top: 105px;
  }

  .projects-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .about-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-panel {
    align-items: flex-start;
  }
}