:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #16181d;
  --muted: #5b6270;
  --accent: #1f5eff;
  --accent-text: #ffffff;
  --border: #e3e6eb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #181b21;
    --text: #eef0f3;
    --muted: #a2a9b6;
    --accent: #5b8cff;
    --accent-text: #0f1115;
    --border: #2a2f38;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.center {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.card {
  width: 100%;
  max-width: 440px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.brand {
  margin: 0 0 24px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--accent);
}

h1 { margin: 0 0 8px; font-size: 1.5rem; line-height: 1.25; }

.muted { margin: 0 0 24px; color: var(--muted); }

.button {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  text-decoration: none;
}

.button:focus-visible { outline: 3px solid var(--text); outline-offset: 2px; }

:root { --danger: #b42318; --success-bg: #ecfdf3; --success-border: #abefc6; }

@media (prefers-color-scheme: dark) {
  :root { --danger: #ff8a7a; --success-bg: #10291c; --success-border: #22573a; }
}

/* Formulários */
.stack { display: grid; gap: 16px; }

.field { display: grid; gap: 6px; font-weight: 600; font-size: .95rem; }

.field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-weight: 400;
}

.field input:focus-visible,
.search input:focus-visible { outline: 3px solid var(--accent); outline-offset: 1px; }

.field input[aria-invalid="true"] { border-color: var(--danger); }

.error { color: var(--danger); font-weight: 400; }

.alert {
  margin: 0 0 16px;
  padding: 10px 12px;
  border: 1px solid var(--danger);
  border-radius: 8px;
  color: var(--danger);
}

button.button { border: 0; cursor: pointer; font: inherit; font-weight: 600; }

.button-small { padding: 6px 14px; font-size: .9rem; }

.button-ghost { background: transparent; color: var(--accent); border: 1px solid var(--border) !important; }

.link-button {
  border: 0;
  background: none;
  padding: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
}

/* Estrutura do painel */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.topbar .brand { margin: 0; text-decoration: none; }

.topbar-user { display: flex; align-items: baseline; gap: 12px; }

.topbar-user form { margin: 0; }

.page { max-width: 960px; margin: 0 auto; padding: 24px 16px 48px; display: grid; gap: 24px; }

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  min-width: 0;
}

.panel h1 { margin-bottom: 16px; }

.panel h2 { margin: 0; font-size: 1.15rem; }

.shorten-form { display: grid; gap: 12px; }

.extra summary { cursor: pointer; color: var(--accent); font-size: .95rem; }

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

.prefixed { display: flex; align-items: stretch; }

.prefixed .prefix {
  display: flex;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-right: 0;
  border-radius: 8px 0 0 8px;
  color: var(--muted);
  font-weight: 400;
  white-space: nowrap;
}

.prefixed input { border-radius: 0 8px 8px 0; min-width: 0; }

.shorten-form > .button { justify-self: start; }

/* Resultado */
.result {
  margin-top: 20px;
  padding: 16px;
  border: 1px solid var(--success-border);
  border-radius: 10px;
  background: var(--success-bg);
}

.result-label { margin: 0 0 6px; font-weight: 600; }

.result-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }

.result-link { font-size: 1.25rem; font-weight: 700; color: var(--text); word-break: break-all; }

.result-status { margin: 8px 0 0; font-size: .9rem; }

/* Lista */
.list-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }

.search { display: flex; gap: 8px; flex: 1 1 280px; max-width: 420px; }

.search input {
  flex: 1;
  min-width: 0;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.links { list-style: none; margin: 0; padding: 0; }

.link-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
}

.link-item.is-new { background: var(--success-bg); margin: 0 -12px; padding: 14px 12px; border-radius: 8px; }

.link-main { min-width: 0; }

.link-item .muted { margin: 0; }

.link-short a { font-weight: 700; color: var(--accent); text-decoration: none; }

.link-title { font-size: .95rem; }

.link-dest { font-size: .85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.link-meta { display: grid; justify-items: end; font-size: .85rem; white-space: nowrap; }

.badge {
  margin-left: 8px;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: .75rem;
  font-weight: 600;
}

.link-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 4px 14px; }

.link-actions form { margin: 0; }

.action { font-size: .9rem; color: var(--accent); text-decoration: none; }

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

.notice {
  margin: 0;
  padding: 12px 16px;
  border: 1px solid var(--success-border);
  border-radius: 10px;
  background: var(--success-bg);
}

.back { margin: 0 0 12px; font-size: .9rem; }

.back a, .form-actions a:not(.button) { color: var(--accent); }

.edit-short { color: var(--text); }

.form-actions { display: flex; align-items: center; gap: 16px; }

.empty { margin: 8px 0 0; }

.pagination { display: flex; justify-content: center; align-items: center; gap: 16px; margin-top: 16px; }

/* Estatística do link */
.stats-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 16px; }

.stats-title { min-width: 0; flex: 1 1 320px; }

.stats-title h1 { margin-bottom: 4px; word-break: break-all; }

.stats-title h1 a { color: var(--text); text-decoration: none; }

.stats-subtitle { margin: 0 0 4px; font-weight: 600; }

.stats-title .link-dest { margin: 0 0 4px; }

.stats-title .link-dest a { color: var(--muted); }

.stats-meta { margin: 0; font-size: .9rem; }

.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-top: 20px; }

.stat { display: grid; gap: 2px; padding: 16px; border: 1px solid var(--border); border-radius: 10px; }

.stat-value { font-size: 1.75rem; font-weight: 700; line-height: 1.2; }

.stat-label { font-weight: 600; }

.stat-hint { margin: 0; font-size: .8rem; }

.chart { display: block; width: 100%; height: auto; margin-top: 12px; overflow: visible; }

.chart-bar { fill: var(--accent); }

.chart-base { stroke: var(--border); stroke-width: 1; }

.chart-axis { fill: var(--muted); font-size: 11px; }

.chart-table { margin-top: 12px; font-size: .9rem; }

.chart-table summary { cursor: pointer; color: var(--accent); }

.chart-table table { margin-top: 8px; border-collapse: collapse; }

.chart-table th, .chart-table td { padding: 4px 16px 4px 0; text-align: left; border-bottom: 1px solid var(--border); }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }

.rank { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 12px; }

.rank-line { display: flex; justify-content: space-between; gap: 12px; font-size: .9rem; }

.rank-line .muted { margin: 0; white-space: nowrap; }

.rank-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.rank-bar { display: block; width: 100%; height: 6px; margin-top: 4px; }

.rank-track { fill: var(--border); }

.rank-fill { fill: var(--accent); }

/* QR code */
.qr-panel { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; }

.qr-preview { width: 160px; height: 160px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }

.qr-text { margin: 4px 0 12px; }

.qr-hint { margin: 12px 0 0; font-size: .85rem; }

a.button-ghost { border: 1px solid var(--border); }

/* Menu e usuários */
.topbar-nav { display: flex; align-items: baseline; gap: 16px; }

.topbar-nav a:not(.brand) { color: var(--muted); text-decoration: none; font-size: .95rem; }

.topbar-nav a:not(.brand):hover { color: var(--text); }

.field select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-weight: 400;
}

.invite-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; align-items: end; }

.invite-form > .button { justify-self: start; }

.form-hint { margin: 12px 0 0; font-size: .85rem; }

.token-link {
  flex: 1 1 240px;
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  font: .9rem/1.4 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.status-invited { color: var(--accent); }

.status-disabled { color: var(--danger); }

@media (max-width: 640px) {
  .panel { padding: 16px; }
  .link-item { row-gap: 6px; }
  .link-actions { justify-content: flex-start; }
  .link-item { grid-template-columns: minmax(0, 1fr); }
  .link-meta { grid-row: 2; display: flex; flex-wrap: wrap; gap: 4px 12px; justify-items: start; }
  .prefixed .prefix { display: none; }
  .prefixed input { border-radius: 8px; }
}