/* ============================================
   TRANSIMBA - ESTILOS PRINCIPALES
   Multi Services System
   Versión: 1.0
   ============================================ */

/* === VARIABLES CSS === */
:root {
    /* Colores Principales */
    --primary-color: #062F86;
    /* Navy Blue */
    --primary-light: #1646B1;
    /* Azul Claro Derivado */
    --primary-dark: #032161;
    /* Azul Oscuro Derivado */
    --secondary-color: #9FC6E1;
    /* Light Blue */
    --secondary-light: #B8D6EB;
    /* Light Blue Claro */
    --secondary-dark: #7BA9C7;
    /* Light Blue Oscuro */
    --accent-color: #062F86;
    /* Se usa el Navy como acento principal */
    --accent-light: #9FC6E1;
    --accent-dark: #032161;

    /* Colores Neutrales */
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --gray: #6C757D;
    --dark-gray: #495057;
    --black: #212529;

    /* Tipografía */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-headings: 'Poppins', sans-serif;

    /* Espaciados */
    --spacing-xs: 0.5rem;
    /* 8px */
    --spacing-sm: 1rem;
    /* 16px */
    --spacing-md: 1.5rem;
    /* 24px */
    --spacing-lg: 2rem;
    /* 32px */
    --spacing-xl: 3rem;
    /* 48px */
    --spacing-2xl: 4rem;
    /* 64px */
    --spacing-3xl: 6rem;
    /* 96px */

    /* Bordes - Estilo Cuadrado como transimba-sl.com */
    --border-radius: 0;
    --border-radius-lg: 0;
    --border-radius-xl: 0;

    /* Sombras - Flat design principalmente */
    --shadow-sm: none;
    --shadow: none;
    --shadow-lg: none;
    --shadow-xl: 0 10px 30px rgba(0, 0, 0, 0.05);

    /* Transiciones Fluidas */
    --transition-base: 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

/* === RESET Y BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray);
    background-color: var(--white);
    overflow-x: hidden;
}

/* === TIPOGRAFÍA === */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-headings);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 2rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--accent-color);
}

/* Performance Optimizations */
.btn,
.service-card,
.about-card,
.client-logo,
.feature-item {
    will-change: transform, opacity, box-shadow;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

/* === UTILIDADES === */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}


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

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

.text-secondary {
    color: var(--secondary-color);
}

.text-accent {
    color: var(--accent-color);
}

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

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

/* === BOTONES === */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-family: var(--font-headings);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: 0;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

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

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

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

.btn-accent:hover {
    background-color: transparent;
    color: var(--accent-color);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(6, 47, 134, 0.1);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

/* === HEADER === */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--secondary-color);
    /* Light Blue */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.header-top {
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
}

.header-top-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-contact {
    display: flex;
    gap: var(--spacing-lg);
}

.header-contact a {
    color: var(--white);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.header-contact a:hover {
    color: var(--accent-color);
}

.header-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-icon {
    color: var(--white);
    font-size: 1.1rem;
    transition: color var(--transition-base);
}

.social-icon:hover {
    color: var(--accent-color);
}

.header-main {
    padding: var(--spacing-md) 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-headings);
    color: var(--primary-color);
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-text span {
    color: var(--secondary-color);
}

/* Navegación */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--gray);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Menú Hamburguesa */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all var(--transition-base);
}

/* === FOOTER === */
.footer {
    background-color: var(--secondary-color);
    /* Light Blue */
    color: var(--primary-color);
    /* Texto Navy para legibilidad sobre Light Blue */
    padding: var(--spacing-3xl) 0 var(--spacing-md);
    margin-top: var(--spacing-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h4 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-base);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.contact-info-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
}

.contact-info-icon {
    width: 24px;
    height: 24px;
    background-color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.875rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-xl);
    text-align: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Botón Volver Arriba */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 0;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.back-to-top:hover {
    background-color: var(--accent-dark);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.back-to-top.visible {
    display: flex;
}

/* === FORMULARIOS === */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.form-label.required::after {
    content: ' *';
    color: var(--secondary-color);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

.form-select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-primary);
    background-color: var(--white);
    cursor: pointer;
    transition: all var(--transition-base);
}

.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

/* ============================================
   FOOTER - CORRECCIÓN DE COLORES CONTACTO
   ============================================ */

/* Aseguramos que todos los textos en el footer sean claros */
.footer-column p,
.footer-column .contact-info-item {
    color: rgba(255, 255, 255, 0.85) !important;
}

/* Enlaces de contacto (tel y mail) en BLANCO */
.footer-column .contact-info-item a,
.footer-links a {
    color: var(--white) !important;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
}

/* Hover: dorado */
.footer-column .contact-info-item a:hover,
.footer-links a:hover {
    color: var(--accent-color) !important;
    text-decoration: underline;
}

/* Íconos de contacto (si usas <i> o <svg>) */
.contact-info-icon {
    color: var(--white);
}

/* Si usas <strong> dentro del contacto */
.contact-info-item strong {
    color: var(--white);
}

/* === RESPONSIVE REFINED === */

/* Large Tablets and Laptops */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-slider {
        height: 70vh;
    }

    .header-main {
        padding: 10px 20px;
    }
}

/* Tablets and Mobile Landscape */
@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .section {
        padding: 60px 0;
    }

    .header-top {
        display: none;
    }

    /* Hide top info on small screens to save space */

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .footer-column h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .contact-info-item {
        justify-content: center;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .btn {
        width: 100%;
        padding: 12px 20px;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .logo img {
        height: 60px;
    }
}


/* === ANIMACIONES === */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }

    to {
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}

/* === PRINT === */
@media print {

    .header,
    .footer,
    .back-to-top,
    .btn {
        display: none;
    }
}