:root {
  --navy: #003260;
  --teal: #007572;
  --yellow: #f2b124;
  --yellow-hover: #dd9d14;
  --bg: #fbfbf9;
  --surface: #ffffff;
  --border: #e7e3d6;
  --text: #14263d;
  --muted: #5a6577;
  --ok: #007572;
  --ok-soft: #e3f3f2;
  --warn: #8a5c00;
  --warn-soft: #fdf2d8;
  --error: #b4232c;
  --error-soft: #fdecec;
  --radius: 14px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1a28;
    --surface: #16233a;
    --border: #26364f;
    --text: #e8edf4;
    --muted: #9aa8bb;
    --ok: #4fc3bd;
    --ok-soft: #12322f;
    --warn: #f2c25b;
    --warn-soft: #3a2f12;
    --error: #ff8a8f;
    --error-soft: #3c1a1d;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font:
    15px/1.5 'Segoe UI Variable Text',
    'Segoe UI',
    system-ui,
    -apple-system,
    sans-serif;
}

.shell {
  max-width: 560px;
  margin: 0 auto;
  padding: 40px 16px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand img {
  height: 44px;
  width: auto;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow:
    0 1px 2px rgb(0 0 0 / 0.04),
    0 8px 24px rgb(0 0 0 / 0.06);
}

h1 {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}

p {
  margin: 0 0 14px;
}

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

.small {
  font-size: 13px;
}

[hidden] {
  display: none !important;
}

/* ---------- etapas ---------- */
.steps {
  list-style: none;
  display: flex;
  gap: 6px;
  padding: 0;
  margin: 0 0 22px;
  font-size: 12px;
  color: var(--muted);
}

.steps li {
  flex: 1;
  padding-top: 8px;
  border-top: 3px solid var(--border);
}

.steps li.done {
  border-color: var(--teal);
}

.steps li.current {
  border-color: var(--yellow);
  color: var(--text);
  font-weight: 600;
}

/* ---------- verificação ---------- */
.checks {
  list-style: none;
  padding: 0;
  margin: 4px 0 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.checks li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 2px 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg);
}

.checks .icon {
  grid-row: span 2;
  font-weight: 700;
  text-align: center;
}

.checks .ok .icon {
  color: var(--ok);
}

.checks .warn .icon {
  color: var(--warn);
}

.checks .error {
  background: var(--error-soft);
}

.checks .error .icon {
  color: var(--error);
}

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

.checks .message {
  font-size: 13px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

/* ---------- formulários ---------- */
label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 600;
}

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

input:focus,
button:focus-visible,
.button:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: 1px;
}

.actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  flex-wrap: wrap;
  margin-top: 8px;
}

button,
.button {
  font: inherit;
  font-weight: 600;
  border: 0;
  border-radius: 10px;
  padding: 10px 18px;
  background: var(--yellow);
  color: var(--navy);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

button:hover:not(:disabled),
.button:hover {
  background: var(--yellow-hover);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

button.small {
  padding: 4px 10px;
  font-size: 13px;
}

.msg {
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
}

.msg.error {
  background: var(--error-soft);
  color: var(--error);
}

.msg.warn {
  background: var(--warn-soft);
  color: var(--warn);
}

/* ---------- download ---------- */
.installers {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 8px 0 18px;
}

.installer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.installer.suggested {
  border-color: var(--yellow);
  background: var(--warn-soft);
}

.installer .info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.installer .name {
  font-weight: 600;
}

.installer .file {
  font-size: 12px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.server-box {
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.copy-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.copy-row code {
  flex: 1;
  padding: 8px 10px;
  background: var(--bg);
  border-radius: 8px;
  font-size: 13px;
  overflow-wrap: anywhere;
}

footer {
  text-align: center;
}

@media (max-width: 480px) {
  .card {
    padding: 20px;
  }

  .steps {
    font-size: 11px;
  }
}