:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --bg-color: #f3f4f6;
    --text-color: #111827;
    --text-muted: #6b7280;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --card-bg: rgba(255, 255, 255, 0.85);
    --glass-border: 1px solid rgba(255, 255, 255, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    overflow-x: hidden;
    position: relative;
}

/* Background Blobs for Modern Feel */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: drift 20s infinite alternate;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: #6366f1;
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: #ec4899;
    bottom: -50px;
    right: -50px;
    animation-delay: -5s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: #14b8a6;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes drift {
    0% {
        transform: translate(0, 0) scale(1);
    }

    100% {
        transform: translate(30px, 30px) scale(1.1);
    }
}

.container {
    width: 100%;
    max-width: 800px;
    padding: 40px 20px;
    z-index: 1;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    overflow: hidden;
    max-width:100%;
}
.logo-wrap{
  padding: 0;               /* desktop */
}

.header-logo{
  display: block;
  width: 100%;
  max-width: 260px;         /* límite en pantallas grandes */
  height: auto;
  margin: 0 auto 12px;
}

/* En celular: aumenta padding y el logo se "encoge" */
@media (max-width: 600px){
  .logo-wrap{
    padding: 0 24px;        /* ajusta: 16px, 24px, 32px */
  }
  .header-logo{
    max-width: 220px;       /* opcional: aún más pequeño */
  }
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #1f2937;
}

.header p {
    color: var(--text-muted);
}

/* Cards & Glassmorphism */
.card,
.search-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 24px;
}

.search-section {
    margin-bottom: 30px;
}

.search-card label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.input-group {
    display: flex;
    gap: 10px;
}

input[type="text"] {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
    transition: all 0.2s;
}

input[type="text"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--primary-hover);
}

.error-msg {
    color: var(--danger-color);
    margin-top: 10px;
    font-size: 0.9rem;
    font-weight: 500;
}

.hidden {
    display: none !important;
}

/* Results Section */
.summary-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.summary-item {
    text-align: center;
}

.summary-item h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.summary-item p {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
}

.total-due p {
    color: var(--primary-color);
}

.total-overdue p {
    color: var(--danger-color);
}

.invoices-list h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #1f2937;
}

.invoices-grid {
    display: grid;
    gap: 16px;
}

.invoice-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: transform 0.2s;
    border-left: 5px solid transparent;
}

.invoice-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.invoice-card.posted {
    border-left-color: var(--primary-color);
}

.invoice-card.paid {
    border-left-color: var(--success-color);
}

.invoice-card.not_paid {
    border-left-color: var(--warning-color);
}

.invoice-card.reversed {
    border-left-color: var(--text-muted);
}

.invoice-info h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.invoice-dates {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.invoice-status {
    text-align: right;
}

.amount {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-paid {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-not_paid {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-reversed {
    background-color: #f3f4f6;
    color: #374151;
}

.badge-in_payment {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Loader */
.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(79, 70, 229, 0.1);
    border-left-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

footer {
    text-align: center;
    margin-top: 60px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    .input-group {
        flex-direction: column;
    }

    .summary-cards {
        grid-template-columns: 1fr;
    }

    .invoice-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .invoice-status {
        text-align: left;
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
}

/* Invoice Details (Expanded View) */
.invoice-card {
    cursor: pointer;
    flex-wrap: wrap;
    /* Allow details to break to new line */
}

.invoice-details {
    width: 100%;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 600px) {
    .details-grid {
        grid-template-columns: 1fr;
    }
}

.detail-section h5 {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 10px;
    font-weight: 600;
}

.detail-table {
    width: 100%;
    font-size: 0.85rem;
    border-collapse: collapse;
}

.detail-table th,
.detail-table td {
    padding: 8px 0;
    text-align: left;
    border-bottom: 1px solid #f3f4f6;
}

.detail-table th {
    font-weight: 600;
    color: var(--text-muted);
}

.detail-table tr:last-child td {
    border-bottom: none;
}

.text-right {
    text-align: right !important;
}

.text-center {
    text-align: center !important;
}

.status-dot {
    height: 8px;
    width: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
}

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

.bg-warning {
    background-color: var(--warning-color);
}