/* =========================================================
   OFS TLAXCALA - ESCÁNER DE ACTAS
   Autor: Omar Gabriel Salvatierra García
   Estilo institucional refinado y coherente
   ========================================================= */

/* ===== VARIABLES ===== */
:root {
  --color-primary: #1e3a8a;
  --color-primary-light: #2563eb;
  --color-accent: #1d4ed8;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #0f172a;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  --color-success: #15803d;
  --color-warning: #b45309;
  --color-error: #b91c1c;
  --radius: 10px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.08);
  --transition: all 0.25s ease;
}

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

body {
  font-family: "Inter", "Segoe UI", Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* =========================================================
   HEADER
   ========================================================= */
.header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  padding: 1.2rem 2rem;
  border-radius: 0 0 var(--radius) var(--radius);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.ofs-logo {
  height: 60px;
  width: auto;
  object-fit: contain;
}

.header-text h1 {
  font-size: 1.6rem;
  color: var(--color-primary);
  font-weight: 700;
}

.header-text p {
  font-size: 0.95rem;
  color: var(--color-muted);
}

.header-right {
  display: flex;
  align-items: center;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-info .avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 2px solid var(--color-primary-light);
  object-fit: cover;
}

.user-info h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.user-info p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* =========================================================
   CONTENIDO PRINCIPAL
   ========================================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* =========================================================
   PESTAÑAS / MÉTODOS
   ========================================================= */
.scan-methods {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}

.method-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background: #f1f5f9;
}

.tab-btn {
  flex: 1;
  padding: 1rem;
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-muted);
  border-bottom: 3px solid transparent;
  transition: var(--transition);
}

.tab-btn:hover {
  background: rgba(37, 99, 235, 0.05);
  color: var(--color-primary-light);
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary-light);
  background: var(--color-surface);
}

.tab-content {
  display: none;
  padding: 2rem;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   INSTRUCCIONES
   ========================================================= */
.pdf-instructions,
.usb-instructions {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary-light);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.pdf-instructions h3,
.usb-instructions h3 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

/* =========================================================
   INPUTS / FORMULARIOS
   ========================================================= */
.file-input {
  width: 100%;
  padding: 1rem;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-muted);
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.file-input:hover {
  border-color: var(--color-primary-light);
  background: rgba(37, 99, 235, 0.04);
}

.file-input-label {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background: var(--color-primary-light);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.file-input-label:hover {
  background: var(--color-primary);
  transform: translateY(-1px);
}

#pdfFileName {
  margin-left: 1rem;
  font-weight: 500;
  color: var(--color-muted);
}

.usb-input {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  font-family: "Courier New", monospace;
  transition: var(--transition);
}

.usb-input:focus {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  outline: none;
  background: #fff;
}

/* =========================================================
   BOTONES
   ========================================================= */
.btn {
  padding: 0.9rem 1.6rem;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  font-size: 0.95rem;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary);
  transform: translateY(-1px);
}

.btn-download {
  background: var(--color-primary-light);
  color: #fff;
}
.btn-download:hover {
  background: var(--color-primary);
  transform: translateY(-1px);
}

.btn-error {
  background: var(--color-error);
  color: #fff;
}
.btn-error:hover {
  background: #991b1b;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* =========================================================
   PANEL DE CONTROL
   ========================================================= */
.controls-panel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.stats {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.actions {
  display: flex;
  gap: 1rem;
}

/* =========================================================
   TABLAS
   ========================================================= */
.table-panel {
  background: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.table-panel h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.table-container {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.registros-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.registros-table th,
.registros-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.registros-table th {
  background: #f8fafc;
  color: var(--color-muted);
  font-weight: 600;
  white-space: nowrap;
}

.registros-table tr:hover {
  background: rgba(37, 99, 235, 0.05);
}

.curp-cell {
  font-family: "Courier New", monospace;
  color: var(--color-primary);
  font-weight: 600;
}

/* =========================================================
   MENSAJES / ALERTAS
   ========================================================= */
.message {
  padding: 1.2rem;
  border-radius: var(--radius);
  font-weight: 500;
  text-align: center;
  margin: 1rem 0;
  border-left: 4px solid transparent;
}

.message.success {
  background: rgba(21, 128, 61, 0.06);
  border-left-color: var(--color-success);
  color: var(--color-success);
}

.message.error {
  background: rgba(185, 28, 28, 0.06);
  border-left-color: var(--color-error);
  color: var(--color-error);
}

.message.info {
  background: rgba(37, 99, 235, 0.06);
  border-left-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  text-align: center;
  padding: 1rem;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.85rem;
  box-shadow: var(--shadow-sm);
  margin-top: 2rem;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .controls-panel {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .actions {
    justify-content: center;
    flex-wrap: wrap;
  }

  .tab-btn {
    padding: 0.9rem;
    font-size: 0.9rem;
  }

  .tab-content {
    padding: 1.5rem;
  }

  .header-text h1 {
    font-size: 1.3rem;
  }
}
/* ===== Cámara ===== */
.cam-container { display: grid; gap: 1rem; }
.cam-preview {
  position: relative;
  background: #000;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 640px;
}
#camVideo { width: 100%; height: auto; display: block; }
.cam-frame {
  position: absolute; inset: 10%; border: 3px solid rgba(255,255,255,0.7);
  border-radius: 12px; pointer-events: none;
}
.cam-controls { display: flex; align-items: center; gap: 1rem; }
.cam-status { color: var(--color-muted); font-weight: 600; }