/* components.css — Componentes UI ElectroCalc v2.2 */

/* ── VIEW HEADER ─────────────────────────── */
.view-header { margin-bottom: 18px; }
.view-header h2 {
  font-size: 1.4rem; font-weight: 800; color: var(--text);
  margin-bottom: 5px; letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 8px;
}
.view-header p { font-size: 0.85rem; color: var(--text-sub); line-height: 1.5; }

/* Fav button en header */
.view-fav-btn {
  background: none; border: 1px solid var(--border);
  color: var(--text-dim); cursor: pointer; border-radius: 8px;
  padding: 5px 10px; font-size: 0.8rem; transition: all 0.2s;
  display: flex; align-items: center; gap: 5px;
  margin-top: 10px;
}
.view-fav-btn:hover { border-color: var(--warning); color: var(--warning); }
.view-fav-btn.is-fav { border-color: var(--warning); color: var(--warning); background: rgba(245,166,35,0.1); }

/* ── CARD ────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 14px;
  transition: box-shadow 0.2s;
}
.card:hover { box-shadow: var(--shadow-card); }
.card-title {
  font-size: 0.82rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .07em; color: var(--text-dim);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

/* ── FORMULA BOX ─────────────────────────── */
.formula-box {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 14px;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  color: var(--text-sub);
  white-space: pre-wrap;
  line-height: 1.6;
}

/* ── TABS ────────────────────────────────── */
.tab-bar {
  display: flex; gap: 4px; flex-wrap: wrap;
  margin-bottom: 16px;
  background: var(--surface2);
  border-radius: 10px; padding: 4px;
  border: 1px solid var(--border);
}
.tab-btn {
  flex: 1; min-width: 80px;
  background: none; border: none; border-radius: 7px;
  padding: 7px 10px; font-size: 0.78rem; font-weight: 600;
  color: var(--text-dim); cursor: pointer; transition: all 0.18s;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--text); background: var(--surface3); }
.tab-btn.active { background: var(--primary); color: #fff; box-shadow: 0 2px 8px var(--primary-glow); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.18s ease; }

/* ── CALC GRID ───────────────────────────── */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}
.input-group { display: flex; flex-direction: column; gap: 5px; }
.input-group label {
  font-size: 0.77rem; font-weight: 600; color: var(--text-sub);
  display: flex; align-items: center; gap: 5px;
}
.formula-hint { font-size: 0.68rem; color: var(--text-dim); font-weight: 400; }
.input-wrap {
  display: flex; align-items: stretch;
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 9px;
  overflow: hidden;
  transition: border-color 0.18s, box-shadow 0.18s;
}
.input-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.input-wrap input[type="number"],
.input-wrap input[type="text"] {
  flex: 1; min-width: 0;
  background: none; border: none; outline: none;
  color: var(--text); font-size: 0.95rem; font-weight: 600;
  padding: 9px 12px;
  -moz-appearance: textfield;
}
.input-wrap input::-webkit-outer-spin-button,
.input-wrap input::-webkit-inner-spin-button { -webkit-appearance: none; }
.unit-sel {
  background: var(--surface3); border: none; outline: none;
  color: var(--text-sub); font-size: 0.77rem; font-weight: 600;
  padding: 0 10px;
  border-left: 1px solid var(--border);
  cursor: pointer; min-width: 60px;
}
.unit-sel:hover { background: var(--border-strong); }

/* ── BUTTONS ─────────────────────────────── */
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }
.btn {
  padding: 10px 20px; border: none; border-radius: 9px;
  font-size: 0.88rem; font-weight: 700;
  cursor: pointer; transition: all 0.18s;
  letter-spacing: 0.01em;
  display: flex; align-items: center; gap: 6px;
}
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 3px 12px var(--primary-glow);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 5px 16px var(--primary-glow); }
.btn-primary:active { transform: none; }
.btn-secondary {
  background: var(--surface2); color: var(--text-sub);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--surface3); color: var(--text); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: var(--success-dark); }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-dark); }
.btn-danger-sm {
  background: none; border: 1px solid var(--border); color: var(--text-dim);
  padding: 4px 8px; border-radius: 6px; cursor: pointer; font-size: 0.8rem;
  transition: all 0.15s;
}
.btn-danger-sm:hover { border-color: var(--danger); color: var(--danger); background: rgba(255,77,79,0.08); }

/* ── RESULT PANEL ────────────────────────── */
.result-panel {
  background: var(--surface);
  border: 1.5px solid var(--primary);
  border-radius: 14px;
  padding: 18px;
  margin-top: 14px;
  animation: slideUp 0.2s ease;
}
.result-panel.hidden { display: none; }
@keyframes slideUp { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:none; } }
.result-title {
  font-size: 0.72rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: .1em; color: var(--primary); margin-bottom: 14px;
}
.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.result-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
}
.result-big {
  background: linear-gradient(135deg, var(--primary-glow), transparent);
  border: 1px solid var(--primary);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
}
.res-label {
  font-size: 0.7rem; font-weight: 600; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px;
}
.res-value {
  font-size: 1.15rem; font-weight: 800; color: var(--text);
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}
.result-big .res-value { font-size: 1.6rem; color: var(--primary); }

/* Botón exportar en resultado */
.result-export-btn {
  background: none; border: 1px solid var(--border); color: var(--text-dim);
  padding: 5px 10px; border-radius: 7px; cursor: pointer; font-size: 0.75rem;
  transition: all 0.2s; margin-top: 10px;
  display: flex; align-items: center; gap: 4px;
}
.result-export-btn:hover { border-color: var(--success); color: var(--success); }

/* ── ALERTS ──────────────────────────────── */
.alert {
  border-radius: 9px; padding: 11px 14px;
  font-size: 0.83rem; line-height: 1.5; margin-bottom: 12px;
  display: flex; align-items: flex-start; gap: 8px;
  border: 1px solid transparent;
}
.alert-info    { background: rgba(79,158,255,.1); border-color: rgba(79,158,255,.3); color: var(--primary); }
.alert-success { background: rgba(52,199,132,.1); border-color: rgba(52,199,132,.3); color: var(--success); }
.alert-warning { background: rgba(245,166,35,.1); border-color: rgba(245,166,35,.3); color: var(--warning); }
.alert-danger  { background: rgba(255,77,79,.1);  border-color: rgba(255,77,79,.3);  color: var(--danger); }

/* ── TABLES ──────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: 10px; border: 1px solid var(--border); }
.ref-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
.ref-table thead tr { background: var(--surface2); }
.ref-table th {
  padding: 10px 12px; text-align: left;
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.ref-table td {
  padding: 9px 12px; border-bottom: 1px solid var(--border);
  color: var(--text-sub); vertical-align: middle;
}
.ref-table tr:last-child td { border-bottom: none; }
.ref-table tr:hover td { background: var(--surface2); }

/* Color swatch en tablas */
.color-swatch {
  display: inline-block; width: 18px; height: 18px;
  border-radius: 4px; vertical-align: middle; margin-right: 6px;
  border: 1px solid rgba(255,255,255,.2);
}

/* ── DIVIDER ─────────────────────────────── */
.divider {
  border: none; border-top: 1px solid var(--border);
  margin: 20px 0;
}

/* ── CALCULADORA CIENTÍFICA ──────────────── */
.calc-btn {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 4px;
  font-size: 0.82rem; font-weight: 600; color: var(--text-sub);
  cursor: pointer; transition: all 0.14s; text-align: center;
}
.calc-btn:hover { background: var(--surface3); color: var(--text); }
.calc-btn:active { transform: scale(0.94); }
.cb-num { background: var(--surface); color: var(--text); font-size: 1rem; }
.cb-op  { background: var(--surface2); color: var(--primary); font-size: 1rem; }
.cb-eq  { background: var(--primary); color: #fff; box-shadow: 0 2px 8px var(--primary-glow); }
.cb-eq:hover { background: var(--primary-dark); }
.cb-clr { color: var(--danger); }
.cb-func { color: var(--success); font-size: 0.78rem; }
.cb-mem { color: var(--warning); font-size: 0.75rem; }

/* ── SMPS DIAGRAM ────────────────────────── */
.smps-diagram {
  background: var(--surface2); border-radius: 10px;
  padding: 14px; margin-bottom: 14px;
  font-family: monospace; font-size: 0.78rem;
  color: var(--text-sub); white-space: pre; overflow-x: auto;
}

/* ── PINOUT TABLE ────────────────────────── */
.pinout-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.pinout-table th { background: var(--surface2); padding: 8px 10px; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing:.06em; color:var(--text-dim); }
.pinout-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); }
.pin-num { font-weight: 800; color: var(--primary); font-family: monospace; }
.pin-vcc { color: var(--danger); font-weight: 700; }
.pin-gnd { color: var(--text-dim); }
.pin-sig { color: var(--success); }
.pin-nc  { color: var(--text-dim); font-style: italic; }

/* ── TOAST NOTIFICACIÓN ──────────────────── */
#toast {
  position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%);
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text); padding: 10px 18px; border-radius: 24px;
  font-size: 0.83rem; font-weight: 600;
  box-shadow: var(--shadow-hover);
  z-index: 999; pointer-events: none;
  opacity: 0; transition: opacity 0.3s;
  white-space: nowrap;
}
#toast.show { opacity: 1; }

/* ── BADGE ───────────────────────────────── */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 20px;
  font-size: 0.68rem; font-weight: 700; letter-spacing: .04em;
}
.badge-primary { background: var(--primary-glow); color: var(--primary); }
.badge-success { background: rgba(52,199,132,.15); color: var(--success); }
.badge-warning { background: rgba(245,166,35,.15); color: var(--warning); }
.badge-danger  { background: rgba(255,77,79,.15);  color: var(--danger); }