/* ===================== RESET & BASE ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue-900: #1e3a8a;
  --blue-800: #1e40af;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-100: #dbeafe;
  --blue-50:  #eff6ff;
  --slate-900: #0f172a;
  --slate-700: #334155;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50:  #f8fafc;
  --green-100: #dcfce7;
  --green-700: #15803d;
  --red-100:   #fee2e2;
  --red-600:   #dc2626;
  --amber-100: #fef3c7;
  --amber-800: #92400e;
  --white:     #ffffff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
  --radius:    10px;
  --radius-sm: 6px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--slate-100);
  color: var(--slate-900);
  min-height: 100vh;
}

/* ===================== SCREENS ===================== */
.screen { display: none; }
.screen.active { display: flex; }

/* ===================== LOGIN ===================== */
#login-screen {
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-600) 100%);
  padding: 1rem;
}

.login-card {
  background: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
}

.login-logo { text-align: center; margin-bottom: 2rem; }
.login-logo svg { margin-bottom: .75rem; }
.login-logo h1 { font-size: 1.5rem; font-weight: 700; color: var(--slate-900); }
.login-logo p  { font-size: .875rem; color: var(--slate-500); margin-top: .25rem; }

.field-group { margin-bottom: 1.25rem; }
.field-group label { display: block; font-size: .8125rem; font-weight: 600; color: var(--slate-700); margin-bottom: .375rem; }
.field-group input {
  width: 100%; padding: .625rem .875rem;
  border: 1.5px solid var(--slate-200); border-radius: var(--radius-sm);
  font-size: .9375rem; outline: none; transition: border-color .15s;
}
.field-group input:focus { border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }

.password-wrap { position: relative; }
.password-wrap input { padding-right: 2.75rem; }
.eye-btn {
  position: absolute; right: .625rem; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; color: var(--slate-400); padding: .25rem;
}
.eye-btn:hover { color: var(--slate-700); }

.error-msg { font-size: .8125rem; color: var(--red-600); margin-bottom: .875rem; background: var(--red-100); padding: .5rem .75rem; border-radius: var(--radius-sm); }

.btn-primary {
  width: 100%; padding: .75rem; background: var(--blue-600); color: var(--white);
  border: none; border-radius: var(--radius-sm); font-size: .9375rem; font-weight: 600;
  cursor: pointer; transition: background .15s, transform .1s;
}
.btn-primary:hover  { background: var(--blue-800); }
.btn-primary:active { transform: scale(.98); }

/* ===================== APP HEADER ===================== */
#app-screen { flex-direction: column; min-height: 100vh; }

.app-header {
  background: var(--blue-800);
  color: var(--white);
  display: flex; align-items: center; justify-content: space-between;
  padding: .875rem 1.5rem;
  box-shadow: var(--shadow-md);
  position: sticky; top: 0; z-index: 100;
}
.header-left { display: flex; align-items: center; gap: .875rem; }
.header-left h1 { font-size: 1.125rem; font-weight: 700; }
.header-sub { font-size: .75rem; opacity: .7; }
.header-right { display: flex; align-items: center; gap: 1rem; }

.user-badge {
  display: flex; align-items: center; gap: .375rem;
  font-size: .8125rem; background: rgba(255,255,255,.15);
  padding: .375rem .75rem; border-radius: 999px;
}

.btn-logout {
  display: flex; align-items: center; gap: .375rem;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2);
  color: var(--white); padding: .375rem .875rem; border-radius: var(--radius-sm);
  font-size: .8125rem; font-weight: 500; cursor: pointer; transition: background .15s;
}
.btn-logout:hover { background: rgba(255,255,255,.22); }

/* ===================== MAIN ===================== */
.app-main { flex: 1; padding: 1.5rem; max-width: 1400px; margin: 0 auto; width: 100%; }

/* ===================== STATS ===================== */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--white); border-radius: var(--radius); padding: 1.25rem 1rem;
  box-shadow: var(--shadow-sm); text-align: center;
  border-top: 3px solid var(--blue-500);
}
.stat-num { display: block; font-size: 2rem; font-weight: 800; color: var(--blue-600); }
.stat-label { font-size: .75rem; color: var(--slate-500); margin-top: .25rem; }

/* ===================== SEARCH PANEL ===================== */
.search-panel {
  background: var(--white); border-radius: var(--radius); padding: 0;
  box-shadow: var(--shadow-sm); margin-bottom: 1.5rem; overflow: hidden;
}

/* ===================== TABS ===================== */
.tab-bar {
  display: flex; border-bottom: 1px solid var(--slate-200);
  background: var(--slate-50);
}
.tab-btn {
  display: flex; align-items: center; gap: .5rem;
  padding: .875rem 1.5rem; background: none; border: none;
  font-size: .875rem; font-weight: 500; color: var(--slate-500);
  cursor: pointer; border-bottom: 2px solid transparent;
  margin-bottom: -1px; transition: color .15s, border-color .15s;
}
.tab-btn:hover { color: var(--blue-600); }
.tab-btn.active { color: var(--blue-600); border-bottom-color: var(--blue-600); background: var(--white); font-weight: 600; }

/* ===================== PANEL SIMPLE ===================== */
#panel-simple { padding: 1.5rem; }

.search-row { display: flex; gap: 2rem; flex-wrap: wrap; }

.search-field { flex: 1; min-width: 220px; }
.search-field label,
.search-input-wrap label { display: block; font-size: .8rem; font-weight: 600; color: var(--slate-500); margin-bottom: .625rem; text-transform: uppercase; letter-spacing: .04em; }

.radio-group { display: flex; flex-direction: column; gap: .5rem; }
.radio-opt { display: flex; align-items: center; gap: .5rem; cursor: pointer; font-size: .9rem; color: var(--slate-700); }
.radio-opt input[type="radio"] { accent-color: var(--blue-600); width: 16px; height: 16px; }
.radio-opt:hover span { color: var(--blue-600); }

.search-input-wrap { flex: 2; min-width: 300px; }

.search-box {
  display: flex; align-items: center; gap: .5rem;
  border: 1.5px solid var(--slate-200); border-radius: var(--radius-sm);
  padding: .5rem .875rem; background: var(--white); transition: border-color .15s;
  margin-bottom: .875rem;
}
.search-box:focus-within { border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.search-box input { flex: 1; border: none; outline: none; font-size: .9375rem; color: var(--slate-900); background: transparent; }
.search-box input::placeholder { color: var(--slate-400); }

.btn-clear { background: none; border: none; cursor: pointer; color: var(--slate-400); font-size: .875rem; padding: .125rem .375rem; border-radius: 4px; }
.btn-clear:hover { background: var(--slate-100); color: var(--slate-700); }

.search-actions { display: flex; gap: .75rem; }
.search-actions .btn-primary { width: auto; padding: .625rem 1.5rem; }
.btn-secondary {
  padding: .625rem 1.25rem; background: var(--white);
  border: 1.5px solid var(--slate-200); border-radius: var(--radius-sm);
  font-size: .9375rem; font-weight: 500; color: var(--slate-700); cursor: pointer; transition: all .15s;
}
.btn-secondary:hover { border-color: var(--blue-500); color: var(--blue-600); }

/* ===================== PANEL MASIVA ===================== */
#panel-masiva { padding: 1.5rem; }

.bulk-label {
  display: block; font-size: .8rem; font-weight: 600; color: var(--slate-500);
  text-transform: uppercase; letter-spacing: .04em; margin-bottom: .625rem;
}

.bulk-textarea {
  width: 100%; min-height: 120px; padding: .75rem 1rem;
  border: 1.5px solid var(--slate-200); border-radius: var(--radius-sm);
  font-size: .875rem; font-family: 'Courier New', monospace;
  color: var(--slate-900); background: var(--white);
  resize: vertical; outline: none; transition: border-color .15s;
  line-height: 1.6;
}
.bulk-textarea:focus { border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.bulk-textarea::placeholder { color: var(--slate-400); font-family: 'Segoe UI', system-ui, sans-serif; }

.bulk-preview {
  margin-top: .625rem; padding: .5rem .875rem;
  background: var(--blue-50); border: 1px solid var(--blue-100);
  border-radius: var(--radius-sm); font-size: .8125rem; color: var(--blue-800);
}

/* ===================== NOT FOUND ALERT ===================== */
.not-found-alert {
  background: var(--amber-100); border: 1px solid #fcd34d;
  border-radius: var(--radius-sm); padding: .75rem 1rem;
  font-size: .8125rem; color: var(--amber-800);
  margin-bottom: 1rem; line-height: 1.6;
}
.not-found-alert code {
  background: rgba(0,0,0,.06); padding: .1rem .35rem;
  border-radius: 3px; font-size: .75rem; margin: 0 .15rem;
}

/* ===================== RESULTS ===================== */
.results-panel {
  background: var(--white); border-radius: var(--radius); padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.results-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.results-header h3 { font-size: 1.0625rem; font-weight: 700; }
.results-count { font-size: .8125rem; background: var(--blue-100); color: var(--blue-800); padding: .25rem .75rem; border-radius: 999px; font-weight: 600; }

.empty-state {
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
  padding: 3.5rem 1rem; color: var(--slate-500); font-size: .9375rem; text-align: center;
}

/* ===================== TABLE ===================== */
.table-scroll { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--slate-200); }

table { width: 100%; border-collapse: collapse; font-size: .85rem; }
thead { background: var(--slate-900); color: var(--white); }
thead th { padding: .75rem 1rem; text-align: left; font-weight: 600; font-size: .78rem; letter-spacing: .03em; white-space: nowrap; }
tbody tr { border-bottom: 1px solid var(--slate-100); transition: background .1s; cursor: pointer; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--blue-50); }
tbody td { padding: .75rem 1rem; color: var(--slate-700); white-space: nowrap; max-width: 220px; overflow: hidden; text-overflow: ellipsis; }
tbody td:first-child { font-weight: 700; color: var(--slate-900); }

.badge { display: inline-block; padding: .2rem .625rem; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge-vigente { background: var(--green-100); color: var(--green-700); }
.badge-other   { background: var(--slate-200);  color: var(--slate-600); }

/* ===================== MODAL ===================== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,.5);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem; z-index: 200; backdrop-filter: blur(2px);
}
.modal-card {
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); width: 100%; max-width: 640px; max-height: 90vh; overflow-y: auto;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--slate-200);
  background: var(--blue-800); border-radius: var(--radius) var(--radius) 0 0;
}
.modal-header h3 { font-size: 1rem; font-weight: 700; color: var(--white); }
.modal-close { background: rgba(255,255,255,.15); border: none; color: var(--white); width: 28px; height: 28px; border-radius: 6px; cursor: pointer; font-size: 1rem; display: flex; align-items: center; justify-content: center; }
.modal-close:hover { background: rgba(255,255,255,.25); }

.modal-body { padding: 1.5rem; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.detail-item { display: flex; flex-direction: column; gap: .25rem; }
.detail-item.full { grid-column: 1 / -1; }
.detail-label { font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--slate-500); font-weight: 600; }
.detail-value { font-size: .9375rem; color: var(--slate-900); font-weight: 500; word-break: break-word; }
.detail-sep { border: none; border-top: 1px solid var(--slate-200); margin: .5rem 0; grid-column: 1 / -1; }

/* ===================== UTILS ===================== */
.hidden { display: none !important; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 768px) {
  .app-header { padding: .75rem 1rem; }
  .header-left h1 { font-size: .9rem; }
  .header-sub { display: none; }
  .user-badge span { display: none; }
  .app-main { padding: 1rem; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .search-row { flex-direction: column; gap: 1rem; }
  .detail-grid { grid-template-columns: 1fr; }
  .tab-btn { padding: .75rem 1rem; font-size: .8rem; }
}

@media (max-width: 480px) {
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 1.5rem; }
}