/* ============================================================
   SIMULADOR INTEGRIDAD DE DATOS — Estilos
   Secciones:
   1.  Variables (design tokens)
   2.  Reset y base
   3.  Layout
   4.  Tipografía display
   5.  Card y Card-inner
   6.  Tabs
   7.  Case cards
   8.  Form fields
   9.  DB Table + constraint badges
   10. SQL Block
   11. Result box
   12. Botones
   13. Chip
   14. Dot status
   15. FK Policy bar
   16. Relationship line
   17. Scrollbar
   18. Animaciones y keyframes
   ============================================================ */

/* ── 1. VARIABLES ─────────────────────────────────────────── */
:root {
  --cyan:   #00d4ff;
  --purple: #a855f7;
  --amber:  #f59e0b;
  --green:  #10b981;
  --red:    #ef4444;
  --bg:     #060c18;
  --surf:   #0b1625;
  --surf2:  #0f1e33;
  --bdr:    #1c3352;
  --text:   #c8d8f0;
  --muted:  #4a6080;
}

/* ── 2. RESET Y BASE ──────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  font-family: 'IBM Plex Mono', monospace;
  color: var(--text);
  min-height: 100vh;
  font-size: 13px;
}

/* ── 3. LAYOUT ────────────────────────────────────────────── */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 14px;
}

@media (max-width: 1024px) {
  .main-grid { grid-template-columns: 1fr; }
}

.form-grid   { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.form-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.cases-grid  { display: grid; grid-template-columns: repeat(2, 1fr); gap: 7px; }

/* ── 4. TIPOGRAFÍA DISPLAY ────────────────────────────────── */
.font-display { font-family: 'Syne', sans-serif; }

/* ── 5. CARD ──────────────────────────────────────────────── */
.card {
  background: var(--surf);
  border: 1px solid var(--bdr);
  border-radius: 10px;
}

.card-inner {
  background: var(--surf2);
  border-radius: 6px;
  border: 1px solid var(--bdr);
}

/* ── 6. TABS ──────────────────────────────────────────────── */
.tab-btn {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}

.tab-btn:hover { background: rgba(255, 255, 255, .05); }

.tab-active-cyan   { border-color: var(--cyan)   !important; color: var(--cyan)   !important; background: rgba(0,   212, 255, .08) !important; }
.tab-active-purple { border-color: var(--purple) !important; color: var(--purple) !important; background: rgba(168,  85, 247, .08) !important; }
.tab-active-amber  { border-color: var(--amber)  !important; color: var(--amber)  !important; background: rgba(245, 158,  11, .08) !important; }
.tab-active-green  { border-color: var(--green)  !important; color: var(--green)  !important; background: rgba(16,  185, 129, .08) !important; }

/* ── 7. CASE CARDS ────────────────────────────────────────── */
.case-card {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--bdr);
  cursor: pointer;
  transition: all .2s;
  background: var(--surf2);
}

.case-card:hover    { border-color: var(--muted); background: rgba(255, 255, 255, .03); }
.case-card.selected { border-color: var(--cyan); background: rgba(0, 212, 255, .06); box-shadow: 0 0 14px rgba(0, 212, 255, .12); }

/* ── 8. FORM FIELDS ───────────────────────────────────────── */
.field-group { display: flex; flex-direction: column; gap: 3px; }

.field-label {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.field-label span { color: var(--cyan); margin-left: 3px; }

.field-input {
  background: #070e1c;
  border: 1px solid var(--bdr);
  border-radius: 5px;
  color: var(--text);
  padding: 6px 9px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  width: 100%;
  transition: border-color .2s, box-shadow .2s;
}

.field-input:focus    { outline: none; border-color: var(--cyan); box-shadow: 0 0 10px rgba(0, 212, 255, .15); }
.field-input.error-field { border-color: var(--red) !important; box-shadow: 0 0 10px rgba(239, 68, 68, .2); }
.field-input:disabled { opacity: .4; cursor: not-allowed; }

/* Select options */
select.field-input option { background: #0b1625; }

/* ── 9. DB TABLE ──────────────────────────────────────────── */
.db-table { width: 100%; border-collapse: collapse; font-size: 11px; }

.db-table th {
  background: #112240;
  color: var(--cyan);
  padding: 6px 8px;
  text-align: left;
  font-weight: 700;
  white-space: nowrap;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* Constraint badges */
.db-table th .constraint {
  display: inline-block;
  margin-left: 4px;
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 700;
}

.pk  { background: rgba(251, 191,  36, .15); color: #fbbf24; }
.fk  { background: rgba(248, 113, 113, .15); color: #f87171; }
.ak  { background: rgba(167, 139, 250, .15); color: #a78bfa; }
.nn  { background: rgba(110, 231, 183, .10); color: #6ee7b7; }
.tri { background: rgba( 16, 185, 129, .10); color: #10b981; }
.ck  { background: rgba(245, 158,  11, .10); color: #f59e0b; }

.db-table td {
  padding: 5px 8px;
  border-bottom: 1px solid rgba(30, 58, 95, .4);
  white-space: nowrap;
  vertical-align: middle;
}

.db-table tr.data-row:hover td { background: rgba(0, 212, 255, .04); }

/* Highlight new rows */
.new-row td { background: rgba(16, 185, 129, .08); animation: rowIn 1.2s ease forwards; }

/* Highlight cascade-deleted rows */
.cascade-row td { background: rgba(245, 158, 11, .08); animation: cascadeFlash 1.2s ease forwards; }

/* Highlight set-null rows */
.null-row td { background: rgba(168, 85, 247, .06); animation: nullFlash 1.2s ease forwards; }

/* ── 10. SQL BLOCK ────────────────────────────────────────── */
.sql-block {
  background: #030810;
  border-radius: 6px;
  padding: 12px 14px;
  font-size: 11.5px;
  color: #7dd3fc;
  border-left: 3px solid var(--cyan);
  white-space: pre-wrap;
  font-family: 'IBM Plex Mono', monospace;
  line-height: 1.6;
}

.sql-comment { color: #4a6080; font-style: italic; }
.sql-kw      { color: #c084fc; font-weight: 700; }
.sql-val     { color: #86efac; }
.sql-err     { color: var(--red); }

/* ── 11. RESULT BOX ───────────────────────────────────────── */
.result-box {
  border-radius: 8px;
  border: 1px solid;
  overflow: hidden;
}

.res-success { border-color: var(--green); background: rgba(16,  185, 129, .06); }
.res-error   { border-color: var(--red);   background: rgba(239,  68,  68, .06); }

/* ── 12. BOTONES ──────────────────────────────────────────── */
.btn-exec {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 13px;
  padding: 10px 24px;
  background: var(--cyan);
  color: #000;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: all .2s;
  letter-spacing: .02em;
}

.btn-exec:hover  { opacity: .88; transform: translateY(-1px); box-shadow: 0 4px 20px rgba(0, 212, 255, .35); }
.btn-exec:active { transform: translateY(0); }

.btn-reset {
  font-family: 'Syne', sans-serif;
  font-size: 11px;
  padding: 6px 14px;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--bdr);
  border-radius: 6px;
  cursor: pointer;
  transition: all .2s;
}

.btn-reset:hover { color: var(--text); border-color: var(--muted); }

/* ── 13. CHIP ─────────────────────────────────────────────── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 10px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.chip-cyan   { background: rgba(0,   212, 255, .12); color: var(--cyan); }
.chip-purple { background: rgba(168,  85, 247, .12); color: var(--purple); }
.chip-amber  { background: rgba(245, 158,  11, .12); color: var(--amber); }
.chip-green  { background: rgba(16,  185, 129, .12); color: var(--green); }
.chip-red    { background: rgba(239,  68,  68, .12); color: var(--red); }

/* ── 14. DOT STATUS ───────────────────────────────────────── */
.dot       { width: 8px; height: 8px; border-radius: 50%; }
.dot-green { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dot-red   { background: var(--red);   box-shadow: 0 0 6px var(--red); }

/* ── 15. FK POLICY BAR ────────────────────────────────────── */
.fk-policy-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surf2);
  border: 1px solid var(--bdr);
  border-radius: 8px;
  padding: 8px 12px;
  flex-wrap: wrap;
}

.policy-btn {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 5px 12px;
  border-radius: 5px;
  border: 1px solid var(--bdr);
  cursor: pointer;
  background: transparent;
  color: var(--muted);
  transition: all .18s;
}

.policy-btn:hover           { color: var(--text);   border-color: var(--muted); }
.policy-btn.active-restrict { background: rgba(239,  68,  68, .12); border-color: var(--red);    color: var(--red); }
.policy-btn.active-cascade  { background: rgba(245, 158,  11, .12); border-color: var(--amber);  color: var(--amber); }
.policy-btn.active-setnull  { background: rgba(168,  85, 247, .12); border-color: var(--purple); color: var(--purple); }
.policy-btn.active-noaction { background: rgba(0,   212, 255, .12); border-color: var(--cyan);   color: var(--cyan); }

/* ── 16. RELATIONSHIP LINE ────────────────────────────────── */
.rel-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 0;
  color: var(--amber);
  font-size: 11px;
}

.rel-line::before,
.rel-line::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber));
}

.rel-line::after { transform: scaleX(-1); }

/* ── 17. SCROLLBAR ────────────────────────────────────────── */
::-webkit-scrollbar        { width: 5px; height: 5px; }
::-webkit-scrollbar-track  { background: var(--bg); }
::-webkit-scrollbar-thumb  { background: var(--bdr); border-radius: 3px; }

/* ── 18. ANIMACIONES Y KEYFRAMES ──────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .3s ease forwards; }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25%       { transform: translateX(-6px); }
  75%       { transform: translateX(6px); }
}
.shake { animation: shake .35s ease; }

@keyframes rowIn {
  0%   { background: rgba(16, 185, 129, .35); }
  100% { background: rgba(16, 185, 129, .08); }
}

@keyframes cascadeFlash {
  0%   { background: rgba(245, 158, 11, .5); }
  100% { background: rgba(245, 158, 11, .08); }
}

@keyframes nullFlash {
  0%   { background: rgba(168, 85, 247, .4); }
  100% { background: rgba(168, 85, 247, .06); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .3; }
}