@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --primary: #2563EB;
  --success: #16A34A;
  --warning: #D97706;
  --neutral: #64748B;
  --bg: #F8F9FA;
  --border: #E2E8F0;
  --white: #FFFFFF;
  --text: #1E293B;
  --text-muted: #94A3B8;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* Card */
.card {
  background: var(--white);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border);
}

/* Botones */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: #1d4ed8;
}

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

.btn-success:hover:not(:disabled) {
  background: #15803d;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--bg);
}

/* Badges de estado */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.badge-pending {
  background: #e0e7ff;
  color: var(--neutral);
}

.badge-overdue {
  background: #fed7aa;
  color: var(--warning);
}

.badge-paid {
  background: #dcfce7;
  color: var(--success);
}

/* Form inputs */
.input {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  width: 100%;
  transition: border-color 0.2s;
}

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

/* Form row */
.form-row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 150px;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

/* Tabla */
.table-container {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th {
  text-align: left;
  padding: 12px;
  font-weight: 600;
  color: var(--text);
  border-bottom: 2px solid var(--border);
  background: var(--bg);
}

.table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.table tr:hover {
  background: var(--bg);
}

.table tr.paid {
  color: var(--text-muted);
}

/* Total card */
.total-card {
  background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
  color: var(--white);
  text-align: center;
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.total-card h2 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 8px;
}

.total-card p {
  font-size: 14px;
  opacity: 0.9;
}

/* Filter bar */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}

.filter-btn:hover {
  background: var(--bg);
}

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

/* Header */
.header {
  background: var(--white);
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.header h1 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

/* Error message */
.error-msg {
  background: #fee2e2;
  color: #dc2626;
  padding: 12px;
  border-radius: 8px;
  font-size: 14px;
  margin-top: 12px;
  display: none;
}

.error-msg.show {
  display: block;
}

/* Login page */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

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

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.login-header .icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Spacing utilities */
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }