:root {
  --primary: #0d7377;
  --primary-dark: #095457;
  --primary-light: #14a3a8;
  --secondary: #32e0c4;
  --bg: #f8fbfb;
  --card-bg: #ffffff;
  --text: #1a2f2f;
  --text-muted: #5a7a7a;
  --border: #e0ebeb;
  --pendiente: #f59e0b;
  --pendiente-bg: #fef3c7;
  --realizada: #10b981;
  --realizada-bg: #d1fae5;
  --no-realizada: #ef4444;
  --no-realizada-bg: #fee2e2;
  --shadow: 0 4px 20px rgba(13, 115, 119, 0.08);
  --shadow-hover: 0 8px 30px rgba(13, 115, 119, 0.12);
}

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

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.app {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 2rem;
  border-radius: 16px;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}

.header-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.logo-icon {
  font-size: 2.5rem;
}

.logo h1 {
  font-size: 1.75rem;
  font-weight: 700;
}

.subtitle {
  opacity: 0.9;
  font-size: 0.95rem;
}

.main {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.main-top {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1.5rem;
  align-items: flex-start;
}

.new-ticket-section {
  background: var(--card-bg);
  padding: 1.5rem 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.new-ticket-section h2,
.tickets-section h2 {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  color: var(--primary-dark);
}

.ticket-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 10px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--primary-dark);
  border: 2px solid var(--primary-light);
  padding: 0.55rem 1.2rem;
}

.btn-secondary:hover {
  background: var(--primary-light);
  color: #ffffff;
}

.btn-status {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: 8px;
}

.chart-section {
  background: var(--card-bg);
  padding: 1.5rem 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.chart-section h2 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
  color: var(--primary-dark);
}

.chart-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.chart-container {
  max-width: 350px;
  margin: 0 auto;
}

.chart-empty {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
}

.chart-empty span {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.5rem;
  opacity: 0.6;
}

.tickets-section {
  background: var(--card-bg);
  padding: 1.5rem 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.tickets-columns {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1.5rem;
  align-items: flex-start;
}

.tickets-column-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.tickets-column-pendientes {
  border-left: 2px dashed var(--border);
  padding-left: 1rem;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.ticket-search {
  padding: 0.45rem 0.8rem;
  border-radius: 8px;
  border: 2px solid var(--border);
  font-family: inherit;
  font-size: 0.9rem;
  min-width: 220px;
}

.ticket-search:focus {
  outline: none;
  border-color: var(--primary-light);
}

.filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border: 2px solid var(--border);
  background: white;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover {
  border-color: var(--primary-light);
  color: var(--primary);
}

.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.tickets-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ticket-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  transition: all 0.2s;
}

.ticket-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.ticket-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.ticket-id {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}

.ticket-titulo {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
}

.ticket-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.ticket-meta span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.ticket-descripcion {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.ticket-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-edit {
  background: #eef2ff;
  color: #4338ca;
}

.btn-edit:hover {
  background: #e0e7ff;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.status-badge.pendiente {
  background: var(--pendiente-bg);
  color: #b45309;
}

.status-badge.realizada {
  background: var(--realizada-bg);
  color: #047857;
}

.status-badge.no-realizada {
  background: var(--no-realizada-bg);
  color: #b91c1c;
}

.prioridad-badge {
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.prioridad-baja { background: #e5e7eb; color: #4b5563; }
.prioridad-media { background: #dbeafe; color: #1d4ed8; }
.prioridad-alta { background: #fce7f3; color: #be185d; }
.prioridad-urgente { background: #fee2e2; color: #dc2626; }

.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
  opacity: 0.6;
}

.footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.login-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.login-box {
  background: #ffffff;
  border-radius: 16px;
  padding: 2rem 2.5rem;
  box-shadow: var(--shadow-hover);
  max-width: 420px;
  width: 100%;
}

.login-box h2 {
  margin-bottom: 1rem;
  color: var(--primary-dark);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-actions {
  display: flex;
  justify-content: flex-end;
}

.login-hint {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.export-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 40;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
}

.modal-dialog {
  position: relative;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: var(--shadow-hover);
  padding: 1.5rem 1.75rem;
  width: 100%;
  max-width: 640px;
  z-index: 41;
}

.modal-dialog h3 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
  color: var(--primary-dark);
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

@media (max-width: 900px) {
  .main-top { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .app { padding: 1rem; }
  .form-row { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: stretch; }
  .tickets-columns { grid-template-columns: 1fr; }
  .tickets-column-pendientes {
    border-left: none;
    padding-left: 0;
  }
}