/* VisionarIA - Calculadora de Andamios IA - Tema claro corporativo */

:root {
    --bg-primary: #f7f8f9;
    --bg-secondary: #ffffff;
    --bg-input: #f1f3f5;
    --accent: #7B2FBE;
    --accent-hover: #6A25A8;
    --accent-light: #9B59D0;
    --text-primary: #222222;
    --text-secondary: #575760;
    --text-muted: #94a3b8;
    --success: #16a34a;
    --warning: #d97706;
    --border: #e2e8f0;
    --border-light: #cbd5e1;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    background-color: var(--bg-secondary);
    border-bottom: 3px solid;
    border-image: linear-gradient(90deg, #7B2FBE, #6CB4E6) 1;
    padding: 0.75rem 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

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

.header-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-logo {
    height: 40px;
    width: auto;
}

header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.badge {
    background-color: var(--accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-info {
    background-color: var(--bg-input);
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid var(--border);
}

/* Main */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
    flex: 1;
}

/* Cards */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.card h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

/* Form */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

input[type="number"],
input[type="text"],
select {
    background-color: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.625rem 0.875rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(123, 47, 190, 0.15);
}

input::placeholder {
    color: var(--text-muted);
}

/* Radio & Checkbox */
.radio-group {
    display: flex;
    gap: 1rem;
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

input[type="radio"],
input[type="checkbox"] {
    width: 1.125rem;
    height: 1.125rem;
    accent-color: var(--accent);
}

/* Button */
.btn-primary {
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
}

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

/* Resultado */
.resultado-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.resultado h2 {
    margin-bottom: 0;
}

/* Alertas */
.alertas {
    margin-bottom: 1.25rem;
}

.alerta {
    background-color: #fffbeb;
    border: 1px solid var(--warning);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: #92400e;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* Secciones */
.seccion {
    background-color: var(--bg-input);
    border-radius: 0.5rem;
    padding: 1.25rem;
    margin-top: 1.25rem;
    border: 1px solid var(--border);
}

.seccion h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.grid-2 .seccion {
    margin-top: 0;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: var(--bg-input);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

td.num, th.num {
    text-align: right;
}

td.codigo {
    font-family: monospace;
    color: var(--text-muted);
}

tbody tr:hover {
    background-color: #f1f5f9;
}

tfoot {
    background-color: var(--bg-input);
}

tfoot td {
    border-bottom: none;
}

/* Lista check */
.lista-check {
    list-style: none;
}

.lista-check li {
    padding: 0.375rem 0;
    color: var(--text-secondary);
}

.lista-check li::before {
    content: "\2713";
    color: var(--success);
    margin-right: 0.5rem;
    font-weight: bold;
}

.lista-check strong {
    color: var(--text-primary);
}

.recomendacion {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-left: 3px solid var(--accent);
}

/* Modulacion */
.modulacion-grid {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.modulacion-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modulacion-valor {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}

.modulacion-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 1rem 2rem;
    text-align: center;
}

footer p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Auth Modal */
.auth-overlay {
    position: fixed;
    inset: 0;
    background: rgba(248, 249, 250, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

body.locked > *:not(.auth-overlay) {
    filter: blur(8px);
    pointer-events: none;
    user-select: none;
}

.auth-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2.5rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

.auth-logo-img {
    height: 60px;
    width: auto;
    margin-bottom: 1.5rem;
}

.auth-modal h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.auth-modal > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

.auth-modal input {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 1rem;
    text-align: center;
}

.auth-modal input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(123, 47, 190, 0.15);
}

.auth-modal .btn-primary {
    margin-bottom: 0.75rem;
}

.auth-error {
    color: #dc2626;
    font-size: 0.875rem;
    min-height: 1.25rem;
}

/* Responsive */
@media (max-width: 640px) {
    main {
        padding: 1rem;
    }

    .header-content {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }

    .header-logo {
        height: 32px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

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

    .modulacion-grid {
        justify-content: center;
    }
}