/* ========================================
   CALCULADORAS TÉCNICAS - TECNO ESCUELA DIGITAL
   Estilos unificados con colores institucionales
   ======================================== */

:root {
    /* Colores institucionales - Basados en la imagen de referencia */
    --color-primario-start: #063157;
    --color-primario-mid: #084298;
    --color-primario-end: #0c3f78;
    --color-secundario: #FBE200;
    --color-terciario: #f8f8f8;
    
    /* Colores adicionales */
    --color-texto-claro: #f1f5f9;
    --color-texto-medio: #94a3b8;
    --color-texto-oscuro: #475569;
    --color-fondo-card: rgba(30, 41, 59, 0.6);
    --color-borde: rgba(148, 163, 184, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #1e3a5f;
    color: var(--color-terciario);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Contenedor principal */
.calc-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 40px auto;
    padding: 30px;
    background: var(--color-fondo-card);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid var(--color-borde);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* Títulos */
h1, h2, h3 {
    color: var(--color-terciario);
    font-weight: 700;
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--color-terciario) 0%, var(--color-secundario) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

/* Formularios */
.form-bg {
     border-radius: 12px;
    padding: 20px;
    border: 2px solid var(--color-secundario);
}

.form-label {
    color: var(--color-texto-claro);
    font-weight: 500;
    margin-bottom: 8px;
}


.form-control {
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--color-borde);
    border-radius: 8px;
    color: var(--color-terciario);
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-select {
    background-color: rgba(255,255,255,0.9);
    border: 2px solid var(--color-borde);
    border-radius: 8px;
    color: var(--color-texto-oscuro);
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: var(--color-secundario);
    box-shadow: 0 0 0 0.2rem rgba(251, 226, 0, 0.25);
    color: var(--color-terciario);
}

.form-select:focus {
    background-color: rgba(255,255,255,0.95);
    border-color: var(--color-secundario);
    box-shadow: 0 0 0 0.2rem rgba(251, 226, 0, 0.25);
    color: var(--color-texto-oscuro);
}

.form-control::placeholder {
    color: var(--color-texto-medio);
}

/* Botones */
.btn-primary,
.btn-success {
    background: linear-gradient(135deg, var(--color-primario-start) 0%, var(--color-primario-mid) 100%);
    border: 2px solid var(--color-secundario);
    border-radius: 10px;
    padding: 12px 24px;
    font-weight: 600;
    color: var(--color-terciario);
    transition: all 0.3s ease;
}

.btn-primary:hover,
.btn-success:hover {
    background: var(--color-secundario);
    color: var(--color-primario-mid);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(251, 226, 0, 0.4);
}

/* Alertas */
.alert {
    border-radius: 12px;
    border: none;
    padding: 15px 20px;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border-left: 4px solid #ef4444;
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.2);
    color: #86efac;
    border-left: 4px solid #22c55e;
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
    border-left: 4px solid #3b82f6;
}

/* Resultados */
.bg-light {
    background: linear-gradient(135deg, #FFFFFF 0%, #F8F9FA 100%) !important;
    border-radius: 12px;
    padding: 20px;
    border: 2px solid var(--color-secundario);
    box-shadow: 0 4px 15px rgba(251, 226, 0, 0.2);
}

.bg-light pre {
    background-color: rgba(30, 41, 59, 0.05);
    border-radius: 8px;
    padding: 15px;
    color: #1e293b;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    overflow-x: auto;
}

/* Logo */
.logo-img {
    max-width: 80px;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    transition: transform 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.05) rotate(2deg);
}

/* Footer */
footer {
    margin-top: 3rem;
    padding: 20px;
    text-align: center;
    color: var(--color-texto-medio);
    font-size: 0.875rem;
    border-top: 1px solid var(--color-borde);
}

footer strong {
    color: var(--color-secundario);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .calc-container {
        margin: 20px;
        padding: 20px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.calc-container {
    animation: fadeInUp 0.6s ease-out;
}

/* Tablas */
.table {
    color: var(--color-terciario);
}

.table thead th {
    background-color:#ebebeb;
    color: var(--color-terciario);
    border-color: #E7E6E6;
}

.table tbody td {
    border-color: var(--color-terciario);
}

/* Select2 y otros componentes */
.select2-container--default .select2-selection--single {
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--color-borde);
    border-radius: 8px;
    height: 45px;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--color-terciario);
    line-height: 41px;
}