@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root {
    --primary-blue: #0288D1; /* Azul corporativo */
    --light-blue: #E1F5FE;
    --background: #FFFFFF;
    --text-main: #333333;
    --text-muted: #666666;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.6;
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--light-blue);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-container img {
    height: 50px;
}

.logo-container h1 {
    font-size: 1.5rem;
    color: var(--primary-blue);
    font-weight: 700;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    margin-left: 20px;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-blue);
}

.btn-primary {
    background: var(--primary-blue);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background: #0277BD;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(2, 136, 209, 0.3);
}

/* Main Container */
main {
    padding: 3rem 5%;
    min-height: calc(100vh - 80px);
}

/* Titles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 2rem;
}

/* Grid de Modelos */
.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

/* Tarjetas */
.model-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--light-blue);
    display: flex;
    flex-direction: column;
}

.model-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-blue);
}

.model-card h3 {
    font-size: 1.25rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.model-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.model-card .btn-view {
    text-align: center;
    display: block;
    width: 100%;
}

/* Viewer 3D */
#model-viewer-container {
    width: 100%;
    height: 70vh;
    background: var(--light-blue);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.05);
    margin-bottom: 2rem;
    position: relative;
}

model-viewer {
    width: 100%;
    height: 100%;
    --poster-color: transparent;
}

.viewer-details {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--light-blue);
}

/* Formularios de Admin */
.admin-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--light-blue);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-blue);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px var(--light-blue);
}

/* Tabla Admin */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
}

.table th, .table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--light-blue);
}

.table th {
    background-color: var(--light-blue);
    color: var(--primary-blue);
}

.btn-danger {
    background: #E53935;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-danger:hover {
    background: #C62828;
}

.btn-edit {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
    margin-right: 5px;
}

.btn-edit:hover {
    background: #0277BD;
}

/* Utilidades */
.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }