/* Magi Elior — shared UI tokens & base components
 *
 * Single source of truth for colors, spacing, radii, typography.
 * Templates reference these via CSS custom properties and utility
 * classes. Keep additions here minimal — page-specific layout
 * (grids, hero, sidebar position) stays inline in the template.
 */

/* -------- Design Tokens -------- */
:root {
  /* Color */
  --bg:             #0a0a0f;
  --bg-card:        #12121a;
  --bg-elevated:    #1a1a2e;
  --bg-hover:       #16162a;
  --border:         #1e1e2e;
  --border-strong:  #2a2a3a;

  --accent:         #8b5cf6;
  --accent-hover:   #7c3aed;
  --accent-soft:    rgba(139, 92, 246, 0.15);
  --accent-fg:      #a78bfa;

  --accent-2:       #06b6d4;
  --accent-2-hover: #0891b2;
  --accent-2-soft:  rgba(6, 182, 212, 0.15);
  --accent-2-fg:    #22d3ee;

  --text:           #e0e0e0;   /* 14:1 — AAA */
  --text-dim:       #a0a0ad;   /* 7.5:1 — AAA, was #888 */
  --text-muted:     #8b8b9a;   /* 5.4:1 — AA, was #666 */
  --text-faint:     #6b6b7a;   /* 3.8:1 — AA large-text only, was #555 */

  --success:        #22c55e;
  --success-fg:     #4ade80;
  --success-soft:   rgba(34, 197, 94, 0.15);
  --danger:         #ef4444;
  --danger-fg:      #f87171;
  --warn-fg:        #fbbf24;

  /* Radius */
  --radius-sm:  6px;
  --radius-md:  8px;
  --radius-lg:  10px;
  --radius-xl:  12px;
  --radius-2xl: 16px;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;

  /* Type */
  --font:   -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:   'SF Mono', 'Fira Code', Menlo, monospace;

  /* Timing */
  --ease: cubic-bezier(.4, 0, .2, 1);
}

/* -------- Light theme (opt-in via data-theme) -------- */
[data-theme="light"] {
  --bg:             #f7f7fa;
  --bg-card:        #ffffff;
  --bg-elevated:    #f0f0f5;
  --bg-hover:       #eaeaf0;
  --border:         #e0e0e8;
  --border-strong:  #c8c8d0;

  --text:           #1a1a24;
  --text-dim:       #4a4a55;
  --text-muted:     #5f5f6c;
  --text-faint:     #7a7a88;

  /* Accents stay — brand consistency across themes */
}
body { transition: background-color .2s var(--ease), color .2s var(--ease); }

/* -------- Reset -------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

/* -------- Accessibility -------- */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre { font-family: var(--mono); }

/* -------- Buttons -------- */
.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background-color .15s var(--ease), border-color .15s var(--ease);
  text-align: center;
  font-family: inherit;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); text-decoration: none; }
.btn-primary:disabled { background: #444; cursor: not-allowed; }

.btn-accent-2 {
  background: var(--accent-2);
  color: #fff;
}
.btn-accent-2:hover { background: var(--accent-2-hover); text-decoration: none; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
}
.btn-outline:hover { border-color: var(--text-muted); text-decoration: none; }

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { background: #dc2626; text-decoration: none; }

/* -------- Forms -------- */
.input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 12px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color .15s var(--ease);
}
.input:focus { border-color: var(--accent); }

.label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 6px;
  margin-top: 16px;
}

/* -------- Cards & surfaces -------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
}

/* -------- Badges -------- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-accent   { background: var(--accent-soft);    color: var(--accent-fg); }
.badge-accent-2 { background: var(--accent-2-soft);  color: var(--accent-2-fg); }
.badge-success  { background: var(--success-soft);   color: var(--success-fg); }
.badge-danger   { background: rgba(239,68,68,.15);   color: var(--danger-fg); }
.badge-local    { background: var(--success-soft);   color: var(--success-fg); }
.badge-escalated { background: var(--accent-soft);   color: var(--accent-fg); }

/* -------- Back link -------- */
.back-link {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--text-dim);
  font-size: 13px;
}
.back-link:hover { color: var(--accent); text-decoration: none; }

/* -------- Welcome-back banner -------- */
.welcome-back-banner {
  position: fixed;
  top: 72px;
  right: 16px;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text);
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .4);
}
.welcome-back-banner a { color: var(--accent-fg); font-weight: 500; }
.welcome-back-banner .dismiss {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}
.welcome-back-banner .dismiss:hover { color: var(--text); }

/* -------- Chat: code blocks & message actions -------- */
.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  position: relative;
  overflow-x: auto;
  margin: 8px 0;
}
.code-block code {
  font-family: var(--mono);
  font-size: 13px;
  color: #d0d0d0;
  white-space: pre;
  display: block;
}
.code-block .copy-code-btn {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  opacity: 0;
  transition: opacity .15s var(--ease);
  font-family: inherit;
}
.code-block:hover .copy-code-btn { opacity: 1; }
.copy-code-btn:hover { color: var(--text); border-color: var(--text-muted); }
.copy-code-btn.copied { color: var(--success-fg); border-color: var(--success-fg); }

.inline-code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
}

.msg-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
  opacity: 0;
  transition: opacity .15s var(--ease);
}
.message:hover .msg-actions { opacity: 1; }
.msg-actions button {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
}
.msg-actions button:hover { color: var(--text); border-color: var(--text-muted); }
.msg-actions button.copied { color: var(--success-fg); border-color: var(--success-fg); }

.msg-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-1);
  font-size: 11px;
  color: var(--text-muted);
}

/* Simple markdown renderings */
.message .content p + p { margin-top: 8px; }
.message .content ul,
.message .content ol { padding-left: 20px; margin: 8px 0; }
.message .content li { margin: 2px 0; }
.message .content strong { color: #fff; font-weight: 600; }
.message .content em { color: #d0d0d0; font-style: italic; }

/* -------- Agent Mode toggle (Phase 49) -------- */
#agent-toggle {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  border-radius: var(--radius-md);
  padding: 0 12px;
  font-size: 18px;
  cursor: pointer;
  transition: background-color .15s var(--ease), border-color .15s var(--ease), color .15s var(--ease);
  font-family: inherit;
  align-self: stretch;
}
#agent-toggle:hover { color: var(--accent); border-color: var(--accent); }
#agent-toggle.is-active {
  background: var(--accent-soft);
  color: var(--accent-fg);
  border-color: var(--accent);
}

.react-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.react-meta .step-count { color: var(--accent-fg); font-weight: 600; }
.react-meta .tool {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
  font-family: var(--mono);
}

/* -------- Product tier badge (Phase 52: Edge vs Cloud) -------- */
.product-tier {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  vertical-align: middle;
  margin-left: 8px;
}
.product-tier.edge   { background: var(--accent-soft);   color: var(--accent-fg); }
.product-tier.cloud  { background: var(--accent-2-soft); color: var(--accent-2-fg); }

/* -------- Theme toggle -------- */
#theme-toggle {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  font-size: 16px;
  padding: 4px 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  line-height: 1;
  font-family: inherit;
}
#theme-toggle:hover { background: var(--bg-hover); border-color: var(--border); }

/* -------- Password utilities -------- */
.password-wrap {
  position: relative;
}
.password-wrap .input { padding-right: 40px; }
.show-pw {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px 8px;
  font-size: 14px;
  font-family: inherit;
  line-height: 1;
}
.show-pw:hover { color: var(--text); }

/* Password strength indicator (register) */
.pw-strength {
  margin-top: 8px;
  font-size: 12px;
}
.pw-strength .bars {
  display: flex;
  gap: 4px;
  margin-bottom: 4px;
}
.pw-strength .bars span {
  flex: 1;
  height: 4px;
  background: var(--border-strong);
  border-radius: 2px;
  transition: background-color .15s var(--ease);
}
.pw-strength .label { color: var(--text-muted); }
.pw-strength.pw-weak   .bars span:nth-child(-n+1) { background: var(--danger); }
.pw-strength.pw-fair   .bars span:nth-child(-n+2) { background: var(--warn-fg); }
.pw-strength.pw-good   .bars span:nth-child(-n+3) { background: var(--success-fg); }
.pw-strength.pw-strong .bars span:nth-child(-n+4) { background: var(--success); }
.pw-strength.pw-weak   .label { color: var(--danger-fg); }
.pw-strength.pw-fair   .label { color: var(--warn-fg); }
.pw-strength.pw-good   .label { color: var(--success-fg); }
.pw-strength.pw-strong .label { color: var(--success); }

/* -------- Mobile sidebar toggle -------- */
#sidebar-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  margin-right: 8px;
}
#sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .5);
  z-index: 50;
}

@media (max-width: 768px) {
  #sidebar-toggle { display: inline-block; }
  #sidebar.is-mobile-hidden { transform: translateX(-100%); }
  #sidebar {
    position: fixed !important;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 60;
    transition: transform .2s var(--ease);
  }
  #sidebar-backdrop.is-open { display: block; }
}