@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #f5f8ff;
  --surface: rgba(255, 255, 255, 0.76);
  --surface-solid: #ffffff;
  --text: #0e1a2f;
  --muted: #516483;
  --line: #d5deec;
  --brand: #2f60df;
  --brand-ink: #1f4ec5;
  --accent: #32b89e;
  --chip: #eef3ff;
  --chip-line: #c6d3ee;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 400;
  font-variant-ligatures: none;
  font-feature-settings: 'liga' 0, 'calt' 0;
}

body {
  color: var(--text);
  background: #eef2f8;
}

.ambient-glow {
  position: fixed;
  inset: -18rem;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(circle at 20% 10%, rgba(66, 123, 255, 0.2), transparent 35%),
    radial-gradient(circle at 90% 12%, rgba(50, 184, 158, 0.14), transparent 38%);
  filter: blur(42px);
  opacity: 0.38;
}

.shell {
  width: min(1400px, calc(100% - 1rem));
  margin-left: auto;
  margin-right: auto;
}

.top-banner {
  text-align: center;
  padding: 0.7rem 1rem;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #dbe7ff;
  background: #172641;
}

.site-header {
  margin-top: 0.65rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 12px 12px 0 0;
  background: var(--surface);
  backdrop-filter: blur(12px);
  display: grid;
  align-items: center;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  font-weight: 800;
  letter-spacing: 0.01em;
}

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

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.site-nav a {
  text-decoration: none;
  color: #445a7a;
  font-size: 0.84rem;
  font-weight: 700;
  padding: 0.42rem 0.62rem;
  border-radius: 8px;
}

.site-nav a[aria-current='page'],
.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--chip);
  color: #1f3457;
}

.outline-btn {
  border: 1px solid #243957;
  background: transparent;
  color: #1f3351;
  border-radius: 10px;
  padding: 0.5rem 0.74rem;
  font: 700 0.8rem 'JetBrains Mono', monospace;
  cursor: pointer;
}

.search-strip {
  margin-top: 0;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0;
  padding: 0.9rem;
  background: var(--surface);
  backdrop-filter: blur(12px);
}

.search-wrap {
  width: min(920px, 100%);
  margin: 0 auto;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--surface-solid);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 160px;
}

.search-wrap input {
  border: 0;
  outline: none;
  background: transparent;
  padding: 0.9rem 1rem;
  font: 600 0.96rem 'JetBrains Mono', monospace;
  color: var(--text);
}

.search-wrap input::placeholder {
  color: #68809f;
}

.search-wrap button {
  border: 0;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-ink) 100%);
  font: 700 0.86rem 'JetBrains Mono', monospace;
}

.layout {
  margin-top: 0;
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 290px;
  gap: 0;
  align-items: start;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0;
  background: var(--surface);
  overflow: hidden;
}

.panel {
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
}

.layout > .panel {
  border: 0;
  border-right: 1px solid var(--line);
}

.left-panel {
  padding: 1rem;
  position: static;
}

.left-panel section + section {
  margin-top: 1.1rem;
}

.left-panel h2 {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #5f7694;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.48rem;
}

.pill-scroll-row {
  display: flex;
  gap: 0.48rem;
  flex-wrap: wrap;
  overflow: visible;
  padding-bottom: 0;
}

.pill-scroll-row .pill {
  white-space: nowrap;
}

.pill {
  border: 1px solid var(--chip-line);
  background: var(--chip);
  color: #274165;
  border-radius: 999px;
  padding: 0.35rem 0.68rem;
  font: 700 0.83rem 'JetBrains Mono', monospace;
  cursor: pointer;
}

.pill:hover,
.pill:focus-visible {
  background: #e2ebff;
}

.center-panel {
  padding: 1.1rem;
}

.verified {
  margin: 0;
  display: inline-block;
  border-radius: 8px;
  padding: 0.28rem 0.52rem;
  background: #e9f8f3;
  border: 1px solid #c2eede;
  color: #1f7161;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  margin: 0.6rem 0 0.3rem;
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -0.02em;
}

.gradient-heading {
  background: linear-gradient(120deg, #1a2f58 0%, #2f60df 45%, #2fbfa5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.phonetic {
  margin: 0 0 0.92rem;
  color: #607796;
}

.tab-row {
  border-top: 1px solid var(--line);
  margin-top: 0.9rem;
  padding-top: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tab {
  border: 1px solid var(--chip-line);
  background: transparent;
  border-radius: 999px;
  color: #274165;
  padding: 0.36rem 0.68rem;
  font: 700 0.8rem 'JetBrains Mono', monospace;
  cursor: pointer;
}

.tab.is-active {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

.status {
  min-height: 1rem;
  margin: 0.62rem 0 0.6rem;
  color: #587392;
  font-size: 0.79rem;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.grid.is-sentences {
  display: grid;
  grid-template-columns: 1fr;
}

.card-word {
  width: auto;
  text-align: center;
  border: 1px solid var(--chip-line);
  background: var(--chip);
  border-radius: 999px;
  color: #213a5e;
  padding: 0.45rem 0.8rem;
  font: 700 0.82rem 'JetBrains Mono', monospace;
  cursor: pointer;
}

.card-word:hover,
.card-word:focus-visible {
  background: #e3ecff;
}

.card-sentence {
  width: 100%;
  border: 1px solid var(--chip-line);
  background: var(--chip);
  border-radius: 12px;
  color: #213a5e;
  padding: 0.72rem 0.86rem;
  font: 600 0.88rem/1.6 'JetBrains Mono', monospace;
}

.right-panel {
  display: grid;
  gap: 0;
  border-left: 1px solid var(--line);
}

.power-card {
  padding: 1rem;
  border-bottom: 1px solid var(--line);
  border-right: 0;
}

.power-card h2,
.brief-card h2 {
  margin: 0;
  font-size: 1.3rem;
}

.score {
  margin: 0.3rem 0 0.2rem;
  font-size: clamp(2rem, 6vw, 3.1rem);
  line-height: 0.95;
  font-weight: 800;
}

.power-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
  font-size: 0.84rem;
}

.brief-card {
  border-radius: 0;
  border: 0;
  background: #1a2a45;
  color: #e8efff;
  padding: 1rem;
}

.brief-card p {
  margin: 0.3rem 0 0.65rem;
  font-size: 0.85rem;
  color: #c6d8f5;
}

.brief-card input,
.brief-card button {
  width: 100%;
  border-radius: 8px;
  padding: 0.6rem;
  border: 0;
  font: 700 0.84rem 'JetBrains Mono', monospace;
}

.brief-card input {
  margin-bottom: 0.5rem;
}

.brief-card button {
  cursor: pointer;
  background: #3ac4a9;
  color: #0f3240;
}

#brief-message {
  min-height: 1rem;
  margin: 0.55rem 0 0;
  font-size: 0.75rem;
}

#brief-message.success {
  color: #b6f6d6;
}

#brief-message.error {
  color: #ffcfcf;
}

.blog-section {
  margin-top: 0;
  border: 1px solid var(--line);
  border-top: 0;
  background: var(--surface);
  padding-bottom: 0.85rem;
}

.blog-head {
  margin-bottom: 0.82rem;
}

.blog-kicker {
  margin: 0;
  color: #617b99;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-head h2 {
  margin: 0.24rem 0 0;
  font-size: clamp(1.08rem, 2.6vw, 1.56rem);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.62rem;
}

.blog-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  padding: 0.8rem;
}

.blog-tag {
  margin: 0;
  display: inline-block;
  border-radius: 999px;
  border: 1px solid var(--chip-line);
  padding: 0.2rem 0.5rem;
  font-size: 0.68rem;
  color: #3f587b;
  background: #f0f5ff;
}

.blog-card h3 {
  margin: 0.5rem 0 0.34rem;
  font-size: 0.9rem;
  line-height: 1.3;
}

.blog-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.79rem;
  line-height: 1.45;
}

.blog-read-link {
  display: inline-block;
  margin-top: 0.56rem;
  color: var(--brand);
  text-decoration: none;
  font-size: 0.79rem;
  font-weight: 700;
}

.blog-read-link:hover,
.blog-read-link:focus-visible {
  text-decoration: underline;
}

.site-footer {
  margin-top: 0;
  margin-bottom: 0.8rem;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 12px 12px;
  background: var(--surface);
  backdrop-filter: blur(12px);
  padding: 1rem;
  display: grid;
  grid-template-columns: minmax(220px, 1.8fr) repeat(3, minmax(110px, 1fr));
  gap: 0.7rem;
  color: #5c7291;
  font-size: 0.81rem;
}

.footer-logo {
  margin: 0 0 0.4rem;
  font-weight: 800;
  color: #223e61;
}

.footer-label {
  margin: 0 0 0.35rem;
  font-size: 0.71rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #425d80;
}

.site-footer a {
  display: block;
  text-decoration: none;
  color: #5c7291;
  margin: 0 0 0.28rem;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

dialog {
  border: 1px solid var(--line);
  border-radius: 12px;
  max-width: 380px;
  width: calc(100% - 1.5rem);
  padding: 1rem;
}

dialog::backdrop {
  background: rgba(13, 26, 47, 0.42);
}

dialog h3 {
  margin: 0;
}

dialog p {
  margin: 0.6rem 0 0.9rem;
  color: var(--muted);
}

dialog button {
  border: 0;
  border-radius: 8px;
  padding: 0.5rem 0.72rem;
  cursor: pointer;
  color: #fff;
  background: var(--brand);
  font: 700 0.82rem 'JetBrains Mono', monospace;
}

@media (max-width: 1080px) {
  .site-header {
    grid-template-columns: 1fr;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .layout {
    grid-template-columns: 1fr 290px;
    grid-template-areas:
      'left left'
      'center right';
  }

  .left-panel {
    grid-area: left;
  }

  .center-panel {
    grid-area: center;
  }

  .right-panel {
    grid-area: right;
    border-left: 1px solid var(--line);
  }

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

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      'left'
      'center'
      'right';
  }

  .panel {
    border-radius: 0;
  }

  .layout > .panel {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .right-panel {
    border-left: 0;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  .shell {
    width: calc(100% - 0.6rem);
  }

  .search-wrap {
    grid-template-columns: 1fr;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }
}