:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-strong: #eef4f8;
  --text: #172033;
  --muted: #687386;
  --line: #dce4ee;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #14b8a6;
  --danger: #dc2626;
  --success: #0f766e;
  --shadow: 0 18px 45px rgba(37, 99, 235, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.08), transparent 360px),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

button,
input {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: rgba(245, 247, 251, 0.9);
  border-bottom: 1px solid rgba(220, 228, 238, 0.8);
  backdrop-filter: blur(14px);
}

.brand,
.nav,
.actions,
.actions-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--text);
  color: #fff;
  text-transform: uppercase;
}

.nav {
  flex-wrap: wrap;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a,
.link-button {
  padding: 8px 10px;
}

.nav-cta {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}

.link-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.page {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 38px 0 64px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 36px;
  align-items: center;
  min-height: 68vh;
}

.hero-copy h1,
.section-header h1 {
  margin: 8px 0 16px;
  font-size: clamp(2.15rem, 5vw, 4.7rem);
  line-height: 1;
  letter-spacing: 0;
}

.hero-text {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.65;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-panel,
.auth-card,
.panel,
.metric-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-panel {
  display: grid;
  gap: 16px;
  padding: 24px;
}

.url-preview,
.short-preview {
  display: grid;
  gap: 8px;
  padding: 18px;
  border-radius: 8px;
  background: var(--surface-strong);
  overflow-wrap: anywhere;
}

.url-preview span,
.short-preview span,
.metric-card span {
  color: var(--muted);
  font-size: 0.85rem;
}

.short-preview {
  background: #e9fbf8;
  color: #0f766e;
}

.mini-chart {
  display: flex;
  align-items: end;
  gap: 10px;
  height: 160px;
  padding: 16px;
  border-radius: 8px;
  background: #172033;
}

.mini-chart span {
  flex: 1;
  border-radius: 8px 8px 0 0;
  background: linear-gradient(180deg, #22d3ee, #2563eb);
}

.button,
.small-action,
.danger-action,
.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 700;
  transition: 160ms ease;
}

.button.primary {
  background: var(--primary);
  color: #fff;
}

.button.primary:hover {
  background: var(--primary-dark);
}

.button.ghost {
  border-color: var(--line);
  background: #fff;
  color: var(--text);
}

.button.full {
  width: 100%;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.features article {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.features h2,
.panel-title h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.features p,
.auth-card p,
.helper,
.muted {
  color: var(--muted);
}

.auth-card {
  width: min(440px, 100%);
  margin: 56px auto;
  padding: 28px;
}

.auth-card h1 {
  margin: 0 0 8px;
  font-size: 2rem;
}

.form {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.form.wide {
  max-width: 720px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  padding: 10px 12px;
}

input:focus {
  outline: 3px solid rgba(37, 99, 235, 0.16);
  border-color: var(--primary);
}

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

.checkbox input {
  width: 18px;
  min-height: 18px;
}

.field-prefix {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.section-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  display: grid;
  gap: 8px;
  padding: 20px;
}

.metric-card strong {
  font-size: 2rem;
}

.panel {
  padding: 22px;
  margin-bottom: 24px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
}

th,
td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.truncate {
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-button {
  max-width: 250px;
  border-color: #bfdbfe;
  background: #eff6ff;
  color: var(--primary-dark);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.small-action,
.danger-action {
  min-height: 34px;
  padding: 7px 10px;
  border-color: var(--line);
  background: #fff;
  color: var(--text);
  font-size: 0.86rem;
}

.danger-action {
  border-color: #fecaca;
  color: var(--danger);
}

.actions-cell form {
  margin: 0;
}

.empty-state {
  display: grid;
  gap: 10px;
  justify-items: start;
  padding: 26px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
}

.empty-state h3,
.empty-state p {
  margin: 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  gap: 18px;
  align-items: start;
}

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

.rank-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rank-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.rank-list span {
  overflow-wrap: anywhere;
}

.profile-panel dl {
  display: grid;
  gap: 16px;
  margin: 0;
}

.profile-panel div {
  display: grid;
  gap: 4px;
}

.profile-panel dt {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.profile-panel dd {
  margin: 0;
}

.alert {
  margin-bottom: 18px;
  padding: 14px 16px;
  border-radius: 8px;
  font-weight: 700;
}

.alert.success {
  border: 1px solid #99f6e4;
  background: #ccfbf1;
  color: var(--success);
}

.alert.error {
  border: 1px solid #fecaca;
  background: #fee2e2;
  color: var(--danger);
}

@media (max-width: 920px) {
  .site-header,
  .section-header {
    align-items: flex-start;
    flex-direction: column;
  }

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

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

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

@media (max-width: 560px) {
  .page {
    width: min(100% - 24px, 1180px);
    padding-top: 24px;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy h1,
  .section-header h1 {
    font-size: 2.1rem;
  }

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

  .actions,
  .actions-cell {
    flex-wrap: wrap;
  }

  .auth-card,
  .form.wide,
  .panel {
    padding: 18px;
  }
}