/**
 * Painel Admin - Calculadora de Custo Efetivo
 * Design responsivo (mobile-first)
 */

:root {
  --color-primary: #0d9488;
  --color-primary-dark: #0f766e;
  --color-bg: #f1f5f9;
  --color-card: #ffffff;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-danger: #dc2626;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --radius: 10px;
  --radius-sm: 6px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

/* Login */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-container {
  width: 100%;
  max-width: 400px;
}

.login-card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2rem;
}

.login-card h1 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

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

.login-form .form-group {
  margin-bottom: 1rem;
}

.login-form label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.login-form input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

.login-form input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.login-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 1rem;
  text-align: center;
}

/* Admin layout */
.admin-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-content h1 {
  font-size: 1.25rem;
}

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

.admin-main {
  display: flex;
  flex-direction: column;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

.admin-nav {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.nav-link {
  padding: 0.5rem 1rem;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.nav-link:hover {
  color: var(--color-primary);
  background: rgba(13, 148, 136, 0.1);
}

.nav-link.active {
  color: var(--color-primary);
  background: rgba(13, 148, 136, 0.15);
}

.admin-content {
  flex: 1;
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

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

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

.btn-outline {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.8);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.2);
}

.admin-content .btn-outline {
  color: var(--color-text);
  border-color: var(--color-border);
}

.admin-content .btn-outline:hover {
  background: var(--color-bg);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}

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

.btn-danger:hover {
  background: #b91c1c;
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.alert-error {
  background: #fef2f2;
  color: var(--color-danger);
}

/* Dashboard */
.dashboard-section h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.dashboard-section p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.dashboard-list {
  margin: 1rem 0 1.5rem 1.5rem;
}

.dashboard-list li {
  margin-bottom: 0.5rem;
}

/* Section */
.section h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

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

/* Acquirers list */
.acquirers-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.acquirer-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-card);
}

.acquirer-card.inactive {
  opacity: 0.7;
}

.acquirer-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge {
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-text-muted);
}

.badge.inactive {
  background: #fecaca;
  color: var(--color-danger);
}

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

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

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  overflow-y: auto;
}

.modal.open {
  display: flex;
}

.modal-content {
  background: var(--color-card);
  border-radius: var(--radius);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-large .modal-content {
  max-width: 680px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-size: 1.1rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-muted);
  line-height: 1;
}

.modal-close:hover {
  color: var(--color-text);
}

.modal form {
  padding: 1.5rem;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

/* Form */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

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

.form-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-check input {
  width: auto;
}

/* Fees grid (admin) */
.fees-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.fees-group h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.fee-input {
  margin-bottom: 0.5rem !important;
}

/* Settings */
.settings-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
}

.tab-btn:hover {
  background: var(--color-card);
}

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

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

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

.distribution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.distribution-group h4 {
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  grid-column: 1 / -1;
}

.distribution-total {
  margin: 1rem 0;
  padding: 0.75rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}

@media (min-width: 640px) {
  .admin-main {
    flex-direction: row;
    align-items: flex-start;
  }

  .admin-nav {
    flex-direction: column;
    min-width: 180px;
    margin-right: 1rem;
  }

  .fees-grid {
    grid-template-columns: 1fr 2fr;
  }

  .distribution-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .distribution-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}