:root {
    --primary-color: #ff4757; /* Bright Red/Pink */
    --secondary-color: #ff6b81;
    --bg-color: #1e272e;
    --card-bg: #2f3542;
    --text-color: #f1f2f6;
    --text-muted: #a4b0be;
    --accent: #1e90ff; /* Bright Blue */
    --border-radius: 12px;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Header */
.app-header {
    background: linear-gradient(135deg, #2d3436, #000000);
    padding: 2rem 1rem;
    text-align: center;
    border-bottom: 4px solid var(--primary-color);
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.logo-container {
    max-width: 250px;
    margin: 0 auto 1rem;
}

.app-logo {
    width: 100%;
    height: auto;
    filter: drop-shadow(0px 0px 10px rgba(255, 71, 87, 0.4));
}

.header-content h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: -webkit-linear-gradient(var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-content h2 {
    margin: 5px 0 0;
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-muted);
}

/* Main Content */
.app-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Filters */
.filters-section {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    margin-bottom: 1.5rem;
}

.filter-group {
    flex: 1;
    min-width: 200px;
    display: flex;
    flex-direction: column;
}

.filter-group.search-group {
    flex: 2;
}

.filter-group label {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-weight: 600;
}

.filter-group select,
.filter-group input {
    padding: 0.8rem;
    border: 1px solid #57606f;
    border-radius: 8px;
    background-color: #1e272e;
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.results-info {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Results Grid */
.results-section {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* Record Card */
.record-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    position: relative;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 4px solid transparent;
}

.record-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.4);
    border-top-color: var(--accent);
}

.record-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    border-bottom: 1px solid #57606f;
    padding-bottom: 0.5rem;
}

.puesto-badge {
    background-color: var(--primary-color);
    color: white;
    font-weight: 800;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.placa-badge {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
}

.record-body h3 {
    margin: 0 0 0.5rem;
    font-size: 1.2rem;
    color: var(--text-color);
}

.record-body p {
    margin: 0.3rem 0;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.record-body strong {
    color: var(--text-color);
}

.record-footer {
    margin-top: 1.5rem;
    text-align: right;
}

.btn-diploma {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 100%;
}

.btn-diploma:hover {
    background-color: #1565c0;
}

.btn-diploma:disabled {
    background-color: #57606f;
    cursor: not-allowed;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--card-bg);
    width: 90%;
    max-width: 800px;
    height: 80vh;
    border-radius: var(--border-radius);
    padding: 2rem;
    position: relative;
    display: flex;
    flex-direction: column;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
}

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

.modal-content h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--text-color);
    padding-right: 30px;
}

.diploma-container {
    flex: 1;
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    background-color: #1e272e;
}

.diploma-container iframe {
    width: 100%;
    height: 100%;
}

@media (max-width: 600px) {
    .header-content h1 {
        font-size: 1.5rem;
    }
    
    .filters-section {
        flex-direction: column;
    }
    
    .modal-content {
        height: 90vh;
        padding: 1.5rem;
    }
}