:root {
  color-scheme: light;
  --bg: #f8fafd;
  --panel: rgba(255, 255, 255, 0.86);
  --panel-strong: #ffffff;
  --text: #202124;
  --muted: #5f6368;
  --line: #e5e8ef;
  --primary: #1a73e8;
  --primary-dark: #1558b0;
  --green: #1e8e3e;
  --yellow: #fbbc04;
  --red: #ea4335;
  --violet: #7b61ff;
  --shadow: 0 24px 70px rgba(60, 64, 67, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(66, 133, 244, 0.18), transparent 26%),
    radial-gradient(circle at 82% 12%, rgba(123, 97, 255, 0.18), transparent 28%),
    radial-gradient(circle at 78% 82%, rgba(52, 168, 83, 0.14), transparent 26%),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app-shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  gap: 22px;
  width: min(1360px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 20px 0 40px;
}

.sidebar {
  position: sticky;
  top: 20px;
  height: calc(100vh - 40px);
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 16px;
  background:
    linear-gradient(#fff, #fff) padding-box,
    conic-gradient(from 160deg, var(--primary), var(--green), var(--yellow), var(--red), var(--violet), var(--primary)) border-box;
  border: 2px solid transparent;
  color: var(--primary);
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 17px;
}

.brand span {
  color: var(--muted);
  font-size: 13px;
}

nav {
  display: grid;
  gap: 6px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  border-radius: 999px;
  padding: 11px 13px;
  font-size: 14px;
  font-weight: 650;
}

nav a.active,
nav a:hover {
  background: #e8f0fe;
  color: #174ea6;
}

.mini-panel {
  margin-top: auto;
  display: grid;
  gap: 6px;
  padding: 14px;
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(232, 240, 254, 0.95), rgba(243, 232, 255, 0.75));
}

.mini-panel span {
  color: var(--muted);
  font-size: 12px;
}

.mini-panel strong {
  font-size: 14px;
}

.workspace {
  min-width: 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 18px;
  align-items: stretch;
  min-height: 186px;
  padding: 28px;
  border-radius: 32px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.94), rgba(248, 250, 255, 0.72)) padding-box,
    linear-gradient(120deg, rgba(66, 133, 244, 0.4), rgba(52, 168, 83, 0.24), rgba(251, 188, 4, 0.24), rgba(234, 67, 53, 0.24)) border-box;
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 22px -78px auto;
  width: 260px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(66, 133, 244, 0.2), transparent 64%);
  pointer-events: none;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.02;
  font-weight: 750;
  letter-spacing: 0;
}

h2 {
  font-size: 20px;
  letter-spacing: 0;
}

p {
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.5;
}

.eyebrow {
  color: #174ea6;
  font-size: 13px;
  font-weight: 750;
  margin: 0 0 14px;
}

.aurora-card {
  align-self: stretch;
  display: grid;
  align-content: end;
  gap: 8px;
  min-height: 120px;
  padding: 18px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 18% 16%, rgba(251, 188, 4, 0.34), transparent 28%),
    radial-gradient(circle at 78% 26%, rgba(26, 115, 232, 0.3), transparent 32%),
    radial-gradient(circle at 62% 82%, rgba(52, 168, 83, 0.28), transparent 28%),
    #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.84);
}

.aurora-card span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.aurora-card strong {
  font-size: 18px;
  line-height: 1.2;
}

.surface {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 22px;
  margin: 18px 0;
  box-shadow: 0 12px 38px rgba(60, 64, 67, 0.07);
  backdrop-filter: blur(16px);
}

.upload-surface {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.82)),
    linear-gradient(110deg, rgba(66, 133, 244, 0.12), rgba(251, 188, 4, 0.08), rgba(52, 168, 83, 0.1));
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.section-head.compact {
  margin-bottom: 12px;
}

.grid {
  display: grid;
  gap: 16px;
  margin-top: 14px;
}

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

.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

input,
select {
  width: 100%;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 18px;
  padding: 11px 14px;
  background: #f6f8fc;
  color: var(--text);
  font: inherit;
  font-weight: 500;
}

input:focus,
select:focus {
  background: #fff;
  border-color: rgba(26, 115, 232, 0.55);
  outline: 3px solid rgba(26, 115, 232, 0.13);
}

.file-drop input {
  padding-top: 12px;
}

.actions,
.stacked-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 18px;
}

.stacked-actions {
  align-items: stretch;
  justify-content: flex-end;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 999px;
  padding: 10px 18px;
  background: linear-gradient(135deg, #1a73e8, #7b61ff);
  color: #fff;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(26, 115, 232, 0.22);
}

button:hover {
  filter: brightness(0.96);
}

button.secondary {
  background: #edf3fd;
  color: #174ea6;
  box-shadow: none;
}

.chip {
  align-self: flex-start;
  border-radius: 999px;
  padding: 8px 12px;
  background: #e6f4ea;
  color: #137333;
  font-size: 13px;
  font-weight: 750;
}

.split {
  display: grid;
  grid-template-columns: minmax(330px, 0.82fr) minmax(0, 1.18fr);
  gap: 18px;
  align-items: start;
}

.split .surface {
  margin: 0;
}

.output {
  min-width: 0;
}

pre {
  min-height: 360px;
  overflow: auto;
  margin: 0;
  padding: 16px;
  border-radius: 20px;
  background: #202124;
  color: #edf2fa;
  font-size: 13px;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

@media (max-width: 1020px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .mini-panel {
    margin-top: 0;
  }

  .hero,
  .split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  body {
    background:
      radial-gradient(circle at 10% 0%, rgba(66, 133, 244, 0.16), transparent 28%),
      radial-gradient(circle at 90% 4%, rgba(123, 97, 255, 0.14), transparent 30%),
      #f8fafd;
  }

  .app-shell {
    width: min(100vw - 18px, 430px);
    gap: 12px;
    padding: 10px 0 28px;
  }

  .sidebar {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 14px;
    border-radius: 24px;
  }

  .brand {
    gap: 10px;
  }

  .mark {
    width: 38px;
    height: 38px;
    border-radius: 14px;
  }

  nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  nav a {
    text-align: center;
    padding: 10px 8px;
    font-size: 13px;
  }

  .mini-panel {
    grid-template-columns: auto 1fr;
    align-items: center;
    padding: 11px 13px;
    border-radius: 18px;
  }

  .mini-panel strong {
    text-align: right;
  }

  .hero {
    min-height: 0;
    gap: 14px;
  }

  .hero::after {
    display: none;
  }

  .eyebrow {
    margin-bottom: 10px;
    font-size: 12px;
  }

  h1 {
    font-size: 34px;
    line-height: 1.05;
  }

  h2 {
    font-size: 19px;
  }

  p {
    font-size: 15px;
  }

  .aurora-card {
    min-height: 88px;
    border-radius: 22px;
    padding: 16px;
  }

  .section-head {
    display: grid;
    gap: 12px;
    margin-bottom: 14px;
  }

  .section-head .secondary {
    justify-self: stretch;
    order: 2;
  }

  .two,
  .three {
    grid-template-columns: 1fr;
  }

  .hero,
  .surface {
    border-radius: 22px;
    padding: 18px;
    margin: 12px 0;
  }

  .grid {
    gap: 12px;
    margin-top: 12px;
  }

  label {
    gap: 7px;
  }

  input,
  select {
    min-height: 50px;
    border-radius: 16px;
    font-size: 15px;
  }

  .chip {
    justify-self: start;
    padding: 7px 10px;
    font-size: 12px;
  }

  .actions,
  .stacked-actions {
    align-items: stretch;
    flex-direction: column;
  }

  button {
    width: 100%;
    min-height: 48px;
  }

  pre {
    min-height: 260px;
    max-height: 420px;
    border-radius: 18px;
    font-size: 12px;
  }
}

@media (max-width: 380px) {
  h1 {
    font-size: 30px;
  }

  .app-shell {
    width: calc(100vw - 12px);
  }
}