/* ============================================================
   Redmine Installer Generator — Styles
   ============================================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-light: #eef2ff;
  --success: #16a34a;
  --danger: #dc2626;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --bg: #f8f9fa;
  --card-bg: #ffffff;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Layout ──────────────────────────────────────────────── */

.page-wrapper {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header .logo {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: .25rem;
}

header .logo svg {
  width: 32px;
  height: 32px;
}

header p {
  color: var(--text-muted);
  font-size: .9rem;
}

.req-link {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .75rem;
  font-weight: 600;
  color: #c2410c;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 9999px;
  padding: .25rem .65rem;
  text-decoration: none;
  margin-top: .6rem;
  transition: background .15s, border-color .15s, color .15s;
}

.req-link:hover {
  background: #ffedd5;
  border-color: #fb923c;
  color: #9a3412;
}

/* ── Progress bar ────────────────────────────────────────── */

.progress-bar-wrapper {
  margin-bottom: 2rem;
}

.step-labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: .75rem;
}

.step-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color .2s;
}

.step-label.active   { color: var(--accent); }
.step-label.done     { color: var(--success); }

.step-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 700;
  transition: all .2s;
  flex-shrink: 0;
}

.step-label.active .step-dot {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.step-label.done .step-dot {
  border-color: var(--success);
  background: var(--success);
  color: #fff;
}

.step-label.done .step-dot::before {
  content: "✓";
}

.progress-track {
  height: 4px;
  background: var(--border);
  border-radius: 9999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 9999px;
  transition: width .4s ease;
}

/* ── Card / Panel ────────────────────────────────────────── */

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: .25rem;
}

.card-subtitle {
  color: var(--text-muted);
  font-size: .875rem;
  margin-bottom: 1.5rem;
}

/* ── Stack cards (Step 1) ────────────────────────────────── */

.stack-section {
  margin-bottom: 1.5rem;
}

.stack-section-label {
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin-bottom: .75rem;
}

.stack-options {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: .75rem;
}

.stack-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  cursor: pointer;
  transition: all .15s;
  user-select: none;
  position: relative;
  background: var(--card-bg);
}

.stack-card:hover:not(.disabled) {
  border-color: var(--accent);
  background: var(--accent-light);
}

.stack-card.selected {
  border-color: var(--accent);
  background: var(--accent-light);
}

.stack-card.selected::after {
  content: "✓";
  position: absolute;
  top: .4rem;
  right: .5rem;
  font-size: .75rem;
  color: var(--accent);
  font-weight: 700;
}

.stack-card.disabled {
  opacity: .45;
  cursor: not-allowed;
}

.stack-card .icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 2.25rem;
}

.stack-card .icon img {
  width: 2rem;
  height: 2rem;
  object-fit: contain;
}

.stack-card .name {
  font-weight: 600;
  font-size: .9rem;
  text-align: center;
}

.stack-card .version {
  font-size: .75rem;
  color: var(--text-muted);
}

.stack-section.has-error .stack-section-label {
  color: var(--danger);
}

.stack-section-error {
  display: none;
  font-size: .75rem;
  color: var(--danger);
  margin-top: .5rem;
}

.stack-section.has-error .stack-section-error {
  display: block;
}

.coming-soon-note {
  font-size: .8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: .5rem;
}

/* ── Form (Step 2) ───────────────────────────────────────── */

.form-grid {
  display: grid;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 520px) {
  .form-row { grid-template-columns: 1fr; }
}

.field {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.field label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text);
}

.field .hint {
  font-size: .75rem;
  color: var(--text-muted);
  margin-top: -.15rem;
}

.field input,
.field select {
  width: 100%;
  padding: .55rem .75rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  color: var(--text);
  background: var(--card-bg);
  transition: border-color .15s;
  outline: none;
  font-family: inherit;
}

.field input:focus,
.field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}

.field.has-error input,
.field.has-error select {
  border-color: var(--danger);
}

.field .error-msg {
  font-size: .75rem;
  color: var(--danger);
  display: none;
}

.field.has-error .error-msg {
  display: block;
}

.input-with-btn {
  display: flex;
  gap: .5rem;
}

.input-with-btn input {
  flex: 1;
  min-width: 0;
}

.btn-icon {
  padding: .55rem .75rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  cursor: pointer;
  font-size: 1rem;
  transition: all .15s;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-icon:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

.field-hidden {
  display: none !important;
}

/* ── Summary (Step 3) ────────────────────────────────────── */

.summary-grid {
  display: grid;
  gap: .5rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .875rem;
  gap: 1rem;
}

.summary-row:last-child { border-bottom: none; }

.summary-row .s-key {
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.summary-row .s-val {
  font-weight: 600;
  word-break: break-all;
  text-align: right;
}

.summary-row .s-val.masked {
  font-family: monospace;
  letter-spacing: .1em;
}

.summary-section-title {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--accent);
  padding-top: .75rem;
  padding-bottom: .25rem;
}

.toggle-pw-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: .85rem;
  margin-left: .5rem;
  padding: 0;
  flex-shrink: 0;
}

.toggle-pw-btn:hover { color: var(--accent); }

/* ── Usage block ─────────────────────────────────────────── */

.usage-block {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: .82rem;
  line-height: 1.7;
  margin-top: 1rem;
  overflow-x: auto;
  white-space: pre;
}

.usage-block .comment { color: #94a3b8; }
.usage-block .cmd     { color: #fbbf24; font-weight: 700; }

/* ── Guide block ─────────────────────────────────────────── */

.guide-block {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  font-family: 'Menlo', 'Consolas', 'Monaco', monospace;
  font-size: .8rem;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
  margin-top: .75rem;
}

/* ── Buttons ─────────────────────────────────────────────── */

.actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.actions.single { justify-content: flex-end; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .65rem 1.4rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all .15s;
  font-family: inherit;
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary {
  background: var(--card-bg);
  color: var(--text);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.btn-download {
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  padding: .8rem 2rem;
  width: 100%;
  justify-content: center;
  margin-top: .5rem;
}

.btn-download:hover { background: var(--accent-hover); }

/* ── Wizard steps visibility ─────────────────────────────── */

.step { display: none; }
.step.active { display: block; }

/* ── Responsive tweaks ───────────────────────────────────── */

@media (max-width: 480px) {
  .card { padding: 1.25rem; }
  .stack-options { grid-template-columns: repeat(2, 1fr); }
  .step-label span { display: none; }
}