/* Xiaomi MiMo AI — English Site Stylesheet
   Extracted from /index.html, optimized for English typography (no CJK fonts) */

:root {
  --bg: #0b0c10;
  --card: #11141c;
  --muted: #a9b3c1;
  --text: #eef1f6;
  --accent: #ff6900;
  --accent-2: #3dd6d0;
  --accent-3: #7c6ff8;
  --border: rgba(255,255,255,0.08);
  --shadow: 0 20px 60px rgba(0,0,0,0.35);
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(255,105,0,0.12), transparent 25%),
              radial-gradient(circle at 80% 10%, rgba(124,111,248,0.14), transparent 26%),
              radial-gradient(circle at 60% 70%, rgba(61,214,208,0.1), transparent 25%),
              var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(11,12,16,0.75);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 36px;
  max-width: 1200px;
  margin: 0 auto;
  min-height: 48px;
  flex-wrap: wrap;
  gap: 12px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.nav-right { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }

.nav-right a {
  padding: 6px 0;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
}

.nav-right .lang-switch {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  background: rgba(255,255,255,0.04);
}

.nav-right .lang-switch:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pill {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(255,105,0,0.18), rgba(124,111,248,0.16));
}

.btn {
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border 0.18s ease;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  font-family: inherit;
  font-size: 14px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #ff914d);
  color: #0b0c10;
  box-shadow: 0 8px 30px rgba(255,105,0,0.35);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn:hover { transform: translateY(-2px); }

.layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 24px 120px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  align-items: center;
  padding-top: 40px;
}

.headline {
  font-size: 42px;
  line-height: 1.15;
  letter-spacing: -0.6px;
  margin: 0 0 16px;
  font-weight: 800;
}

.subhead { color: var(--muted); margin: 0 0 28px; font-size: 17px; }

.badge-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0 26px; }

.badge {
  padding: 8px 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin: 28px 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card h3 { margin: 0 0 12px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }

.section { margin-top: 84px; scroll-margin-top: 90px; }
.section h2 { font-size: 28px; margin: 0 0 14px; letter-spacing: -0.3px; font-weight: 700; }
.section p.lead { margin: 0 0 18px; color: var(--muted); font-size: 16px; }

.list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.list-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.list-item strong { display: block; margin-bottom: 6px; color: var(--text); }

.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.timeline .list-item { border-left: 3px solid var(--accent); }

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.metric {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow);
}

.metric .value { font-size: 24px; font-weight: 800; }
.metric .label { color: var(--muted); font-size: 13px; }

.faq { margin-top: 18px; }
.faq-item { border-bottom: 1px solid var(--border); padding: 14px 0; }
.faq-item h3 { margin: 0 0 6px; font-size: 16px; }
.faq-item p { margin: 0; color: var(--muted); }

.cta {
  margin-top: 64px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
.chip { padding: 8px 12px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); font-size: 13px; }

.bg-orb {
  position: absolute;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255,105,0,0.12), transparent 60%);
  filter: blur(18px);
  z-index: -1;
  animation: float 10s ease-in-out infinite alternate;
}

.bg-orb.b { background: radial-gradient(circle, rgba(124,111,248,0.14), transparent 55%); animation-duration: 13s; }
.bg-orb.c { background: radial-gradient(circle, rgba(61,214,208,0.12), transparent 55%); animation-duration: 11s; }

@keyframes float { from { transform: translateY(0px); } to { transform: translateY(-18px); } }

.fade { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade.visible { opacity: 1; transform: translateY(0); }
.fade-in { animation: fadeIn 0.4s ease-out; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

pre { margin: 0; }
pre code { font-family: "SF Mono", "Fira Code", "JetBrains Mono", "Consolas", monospace; }

/* Chat Demo Card Styles */
.chat-demo-card {
  background: linear-gradient(145deg, var(--card), #161922);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4),
              0 0 0 1px rgba(255,105,0,0.1),
              inset 0 1px 0 rgba(255,255,255,0.05);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 540px;
  position: relative;
}

.chat-demo-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,105,0,0.3), rgba(61,214,208,0.3), transparent);
}

.chat-header {
  padding: 16px 20px;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(10px);
}

.chat-title-row { display: flex; align-items: center; gap: 12px; }

.chat-avatar {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(255,105,0,0.3);
}

.chat-title { font-size: 15px; font-weight: 700; color: var(--text); }
.chat-subtitle { font-size: 12px; color: var(--muted); margin-top: 2px; }

.chat-status {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  background: rgba(61,214,208,0.1);
  border: 1px solid rgba(61,214,208,0.3);
  border-radius: 20px;
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.status-text { font-size: 11px; color: var(--accent-2); font-weight: 600; }

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar { width: 6px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
.chat-messages::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

.message { display: flex; gap: 10px; animation: slideIn 0.3s ease-out; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.message-user { flex-direction: row-reverse; }

.message-avatar {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  color: white;
  flex-shrink: 0;
  font-size: 11px;
}

.message-user .message-avatar { background: var(--accent-3); }

.message-content { flex: 1; max-width: 85%; }
.message-text {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 12px;
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
}

.message-user .message-text {
  background: linear-gradient(135deg, rgba(255,105,0,0.15), rgba(124,111,248,0.12));
  border-color: rgba(255,105,0,0.2);
}

.message-thinking {
  background: rgba(61,214,208,0.08);
  border-color: rgba(61,214,208,0.2);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
}

.typing-indicator {
  display: flex; gap: 4px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.06);
  border-radius: 12px;
  width: fit-content;
}

.typing-indicator span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--muted);
  animation: typing 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

.chat-input-container { padding: 16px 20px; background: rgba(0,0,0,0.2); border-top: 1px solid var(--border); }

.chat-input-wrapper {
  display: flex; gap: 10px;
  align-items: flex-end;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 8px 12px;
  transition: all 0.2s ease;
}

.chat-input-wrapper:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255,105,0,0.1);
}

.chat-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  resize: none;
  max-height: 120px;
  line-height: 1.5;
}

.chat-input::placeholder { color: var(--muted); }

.send-button {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  border: none;
  color: white;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.send-button:hover { transform: scale(1.05); box-shadow: 0 4px 12px rgba(255,105,0,0.4); }
.send-button:active { transform: scale(0.95); }
.send-button:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.chat-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; }
.chat-hint { font-size: 11px; color: var(--muted); }
.chat-model { font-size: 11px; color: var(--accent-2); font-weight: 600; }

footer {
  margin-top: 80px;
  border-top: 1px solid var(--border);
  padding: 24px 0 40px;
  color: var(--muted);
  text-align: center;
}

/* Progress bar */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-3));
  z-index: 999;
  width: 0%;
  transition: width 0.1s ease;
}

/* Social Bar - desktop only */
.social-bar {
  position: fixed;
  bottom: 80px;
  right: 24px;
  z-index: 99;
}

@media (max-width: 640px) { .social-bar { display: none; } }

/* Ad container - fixed height to prevent CLS */
.ad-container {
  width: 100%;
  min-height: 90px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  overflow: hidden;
}

#back-to-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #0b0c10;
  border: none;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 100;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(255,105,0,0.35);
  font-size: 18px;
}

#back-to-top.visible { opacity: 1; transform: translateY(0); }
#back-to-top:hover { transform: translateY(-2px); }

/* Index section quick nav */
.section-nav {
  position: sticky;
  top: 72px;
  z-index: 5;
  background: rgba(11,12,16,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.section-nav a {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--muted);
  transition: all 0.2s;
}

.section-nav a:hover { color: var(--accent); border-color: var(--accent); }

/* Article body (for blog posts and research) */
.article-body {
  max-width: 760px;
  margin: 0 auto;
}

.article-body h2 {
  font-size: 26px;
  margin: 48px 0 16px;
  letter-spacing: -0.3px;
  font-weight: 700;
}

.article-body h3 {
  font-size: 20px;
  margin: 32px 0 12px;
  font-weight: 700;
}

.article-body p {
  margin: 0 0 16px;
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
}

.article-body ul, .article-body ol {
  margin: 0 0 20px;
  padding-left: 22px;
  color: var(--text);
}

.article-body li { margin-bottom: 8px; line-height: 1.65; }

.article-body code {
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "SF Mono", "Fira Code", "JetBrains Mono", monospace;
  font-size: 0.9em;
  color: var(--accent-2);
}

.article-body pre {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  overflow-x: auto;
  margin: 0 0 20px;
}

.article-body pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--text);
  font-size: 13px;
  line-height: 1.6;
}

.article-body blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  border-left: 3px solid var(--accent);
  background: rgba(255,105,0,0.05);
  border-radius: 0 8px 8px 0;
  color: var(--muted);
}

.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-body a:hover { color: #ff914d; }

/* Tables (used in articles) */
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 14px;
}

.article-body th, .article-body td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.article-body th {
  background: rgba(255,255,255,0.04);
  font-weight: 700;
  color: var(--text);
}

.article-body td { color: var(--muted); }

/* Breadcrumb */
.breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 24px;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: underline;
}

.breadcrumb a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 640px) {
  .nav { padding: 10px 12px; flex-wrap: wrap; gap: 8px; }
  .nav-left { width: auto; }
  .nav-left span:last-child { display: none; }
  .nav-right { flex-wrap: wrap; justify-content: center; gap: 8px; font-size: 12px; }
  .nav-right a { min-height: 36px; padding: 4px 6px; }
  .nav-right .btn { padding: 6px 12px; min-height: 36px; font-size: 12px; }
  .nav-right .lang-switch { padding: 4px 8px; font-size: 11px; }

  .headline { font-size: 28px; }
  .chat-demo-card { height: 420px; }
  .message-text { font-size: 13px; }
  .section-nav { display: none; }
  .bg-orb { display: none; }

  .layout { padding: 24px 14px 60px; overflow-x: hidden; }
  .hero { grid-template-columns: 1fr; gap: 20px; padding-top: 20px; }

  .hero-content { padding: 0; }
  .hero-content > div[style*="inline-flex"] { font-size: 11px !important; padding: 4px 10px !important; }
  .hero-content .cta .btn { min-height: 40px; font-size: 13px; padding: 8px 14px; justify-content: center; }

  .badge-row { gap: 6px; }
  .badge { font-size: 11px; padding: 4px 8px; }

  .metrics-preview { grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 20px !important; }

  .card-grid { grid-template-columns: 1fr; }
  .list { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .cta { flex-direction: column; align-items: stretch; }

  .article-body { padding: 0; }
  .article-body h2 { font-size: 22px; margin: 32px 0 12px; }
  .article-body h3 { font-size: 18px; }

  table { font-size: 12px; }
  th, td { padding: 8px 10px; }
}