:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --ink: #0f1f38;
  --muted: #5a6c8e;
  --edge: #d9e0ec;
  --brand: #0b6ef9;
  --brand-strong: #0a56c4;
  --ok: #0a8f58;
  --warn: #b06a16;
  --danger: #b9353d;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  background: radial-gradient(circle at 0% 0%, #dfeaff, transparent 40%),
    radial-gradient(circle at 100% 100%, #dff8ef, transparent 40%),
    var(--bg);
  color: var(--ink);
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

a {
  color: var(--brand-strong);
}

.app-shell {
  width: min(1120px, 100% - 2rem);
  margin: 1.2rem auto 2rem;
  display: grid;
  gap: 1rem;
}

.hero {
  padding: 0.8rem 0.2rem;
}

.eyebrow {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 0.2rem;
}

.hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin-bottom: 0.35rem;
}

.sub {
  color: var(--muted);
  line-height: 1.4;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 10px 26px rgba(15, 31, 56, 0.08);
}

.auth-panel {
  max-width: 480px;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  margin-bottom: 0.8rem;
}

.tabs button {
  border: 1px solid var(--edge);
  border-radius: 10px;
  background: #f8fbff;
  color: var(--ink);
  padding: 0.6rem;
  cursor: pointer;
}

.tabs button.active {
  background: #e9f1ff;
  border-color: #a9c4fa;
  font-weight: 600;
}

.form-grid {
  display: grid;
  gap: 0.7rem;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.94rem;
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  border: 1px solid var(--edge);
  border-radius: 10px;
  padding: 0.62rem 0.68rem;
  background: #fff;
  color: var(--ink);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.btn-primary {
  border: 1px solid #0a4cab;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  color: #fff;
  padding: 0.65rem 0.85rem;
  cursor: pointer;
}

.btn-primary:disabled,
.btn-ghost:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-ghost {
  border: 1px solid var(--edge);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  padding: 0.55rem 0.72rem;
  cursor: pointer;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 0.9rem;
}

.plan-wrap {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.plan-badge {
  border-radius: 999px;
  border: 1px solid #f0d3a8;
  padding: 0.28rem 0.62rem;
  font-weight: 700;
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: #7e4f0c;
  background: #fff2dc;
}

.plan-badge.pro {
  border-color: #9bd9b5;
  color: #0c6a42;
  background: #ddf7e8;
}

.grid-two {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 0.85rem;
}

.search-panel h3,
.history-panel h3 {
  margin-bottom: 0.35rem;
}

.hint {
  color: var(--muted);
  font-size: 0.92rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.chip {
  background: #edf3ff;
  border: 1px solid #cadbf9;
  color: #18468c;
  border-radius: 999px;
  padding: 0.28rem 0.62rem;
  font-size: 0.78rem;
}

.history-list {
  margin: 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.65rem;
}

.history-list li {
  line-height: 1.35;
}

.results-header {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: baseline;
  margin-bottom: 0.8rem;
}

.results-list {
  display: grid;
  gap: 0.72rem;
}

.result-card {
  border: 1px solid var(--edge);
  border-radius: 12px;
  background: #fbfdff;
  padding: 0.78rem;
  display: grid;
  gap: 0.35rem;
}

.result-head {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  align-items: flex-start;
}

.result-head h4 {
  font-size: 1.02rem;
}

.score {
  font-size: 0.74rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  border: 1px solid #cfe0fe;
  background: #edf3ff;
  color: #1856ad;
}

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

.error {
  color: var(--danger);
  font-size: 0.92rem;
}

.hidden {
  display: none;
}

@media (max-width: 900px) {
  .app-shell {
    width: min(1120px, 100% - 1rem);
    margin-top: 0.8rem;
  }

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

  .topbar,
  .results-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .plan-wrap {
    justify-content: flex-start;
  }
}