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

:root {
  color-scheme: dark;
  --bg:             #0d1117;
  --surface:        #161b22;
  --surface2:       #1c2128;
  --border:         #30363d;
  --border-hover:   #484f58;
  --text:           #e6edf3;
  --muted:          #8b949e;
  --up:             #3fb950;
  --up-bg:          #0d2116;
  --up-border:      #1a4228;
  --down:           #f85149;
  --down-bg:        #2d0d0d;
  --down-border:    #5c1616;
  --signout:        #d98580;
  --signout-border: #4a2423;
  --unknown:        #d29922;
  --unknown-bg:     #271d07;
  --unknown-border: #4d3a0f;
  --accent:         #388bfd;
  --accent-hover:   #4d9bff;
  --code-bg:        #010409;
  --code-text:      #79c0ff;
  --code-string:    #ffa657;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* ════════════════════════════
   HEADER
════════════════════════════ */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  height: 56px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
  gap: 16px;
}

.header-brand {
  font-size: 1.15em;
  font-weight: 800;
  letter-spacing: -0.4px;
  flex-shrink: 0;
  color: var(--text);
  text-decoration: none;
}
.header-brand span { color: var(--accent); }

.header-user {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.header-user a { flex-shrink: 0; display: inline-flex; }
.header-user img {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  display: block;
}

.btn-settings,
.btn-nav {
  flex-shrink: 0;
  padding: 5px 14px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82em;
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s;
  display: inline-flex;
  align-items: center;
}
.btn-settings:hover,
.btn-nav:hover { color: var(--text); border-color: var(--muted); }
.btn-nav.active { color: var(--text); border-color: var(--accent); }

.btn-signout {
  flex-shrink: 0;
  padding: 5px 14px;
  /* A softer take on the DOWN / Delete red: same hue, toned down */
  border: 1px solid var(--signout-border);
  background: transparent;
  color: var(--signout);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82em;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.btn-signout:hover { color: var(--down); border-color: var(--down-border); background: var(--down-bg); }

/* ════════════════════════════
   FEEDBACK BUTTON
════════════════════════════ */
.btn-feedback {
  flex-shrink: 0;
  padding: 5px 14px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82em;
  transition: color 0.15s, border-color 0.15s;
}
.btn-feedback:hover { color: var(--text); border-color: var(--muted); }

/* ════════════════════════════
   FEEDBACK MODAL
════════════════════════════ */
.fb-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.fb-overlay.open { display: flex; }

.fb-modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 28px 24px;
  width: 100%;
  max-width: 460px;
  margin: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.fb-modal h3 {
  font-size: 1em;
  font-weight: 700;
}
.fb-modal p {
  font-size: 0.83em;
  color: var(--muted);
  line-height: 1.5;
  margin-top: -6px;
}
.fb-field { display: flex; flex-direction: column; gap: 5px; }
.fb-field label {
  font-size: 0.76em;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.fb-field select,
.fb-field textarea {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.88em;
  font-family: inherit;
  resize: vertical;
}
.fb-field select:focus,
.fb-field textarea:focus { outline: none; border-color: var(--accent); }
.fb-char-count {
  font-size: 0.72em;
  color: var(--muted);
  text-align: right;
}
.fb-char-count.over { color: var(--down); }
.fb-error {
  font-size: 0.82em;
  color: var(--down);
  display: none;
}
.fb-success {
  font-size: 0.85em;
  color: var(--up);
  display: none;
  align-items: center;
  gap: 8px;
}
.fb-success::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--up);
  flex-shrink: 0;
}
.fb-confirm {
  flex-direction: column;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--unknown-border);
  background: var(--unknown-bg);
  border-radius: 8px;
  font-size: 0.85em;
  color: var(--text);
}
.fb-confirm-actions { display: flex; justify-content: flex-end; gap: 8px; }
.fb-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 4px;
}
.fb-btn-cancel,
.fb-btn-discard {
  padding: 8px 16px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88em;
}
.fb-btn-cancel:hover,
.fb-btn-discard:hover { color: var(--text); border-color: var(--muted); }
.fb-btn-submit,
.fb-btn-keep {
  padding: 8px 18px;
  background: var(--accent);
  color: var(--text);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88em;
  font-weight: 600;
  transition: background 0.15s;
}
.fb-btn-submit:hover,
.fb-btn-keep:hover { background: var(--accent-hover); }
.fb-btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Portrait window (taller than wide) ──
   The header's row of Settings / API Docs / Feedback / Sign out becomes a full-width column.
   Shared by the dashboard, Settings and API Docs pages. */
@media (orientation: portrait) {
  .header {
    height: auto;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 10px;
    position: static;
  }
  .header-user { flex-direction: column; align-items: stretch; gap: 8px; }
  .header-user > a:first-child { align-self: center; }
  .header-user .user-info { text-align: center; }
  .header-user .btn-settings,
  .header-user .btn-nav,
  .header-user .btn-feedback,
  .header-user form,
  .header-user .btn-signout { width: 100%; text-align: center; justify-content: center; }
  .header-user .btn-settings,
  .header-user .btn-nav { display: block; box-sizing: border-box; padding-top: 8px; padding-bottom: 8px; }
  .header-user .btn-feedback,
  .header-user .btn-signout { padding-top: 8px; padding-bottom: 8px; }
}

/* ── Phone header on Settings / API Docs (≤ 640px, after the portrait rules so these win) ──
   Logo left, photo right; a full-width Dashboard button; then the same half-size buttons as the
   dashboard: Settings | Getting Started | API Docs, Feedback | Sign out (six columns, so a row holds
   three or two). .header-user's children join the grid. */
@media (max-width: 640px) {
  .header.header-subpage {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    column-gap: 8px;
    row-gap: 6px;
    align-items: center;
    padding: 10px 16px;
  }
  .header-subpage .header-user { display: contents; }
  .header-subpage .header-brand { grid-column: 1 / span 3; grid-row: 1; }
  .header-subpage .header-user > a:not(.btn-nav) { grid-column: 4 / span 3; grid-row: 1; justify-self: end; }
  .header-subpage .header-user img { width: 26px; height: 26px; }
  .header-subpage .btn-nav[href$="/dashboard"] { grid-column: 1 / -1; grid-row: 2; }
  .header-subpage .btn-nav[href$="/settings"] { grid-column: 1 / span 2; grid-row: 3; }
  .header-subpage .btn-nav[href$="/guide"]    { grid-column: 3 / span 2; grid-row: 3; }
  .header-subpage .btn-nav[href$="/api-docs"] { grid-column: 5 / span 2; grid-row: 3; }
  .header-subpage .header-user .btn-feedback { grid-column: 1 / span 3; grid-row: 4; }
  .header-subpage .header-user form { grid-column: 4 / span 3; grid-row: 4; }
  .header-subpage .header-user .btn-nav,
  .header-subpage .header-user .btn-feedback,
  .header-subpage .header-user .btn-signout { width: 100%; padding: 4px 8px; font-size: 0.72em; }
  .header-subpage .header-user form .btn-signout { display: block; }
}