/**
 * Estilos principales - GKM Corporacion
 * Paleta: #1a2634, #141c27, #ff6b35, #25D366, #FFD700, #ffffff, #e5e7eb
 */

/* ========================================
   VARIABLES CSS
   ======================================== */
:root {
    --color-primary: #1a2634;
    --color-dark: #141c27;
    --color-accent: #ff6b35;
    --color-green: #25D366;
    --color-gold: #FFD700;
    --color-light: #ffffff;
    --color-gray: #e5e7eb;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --radius: 10px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: var(--color-light);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   HEADER
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-light);
    z-index: 1000;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
}

/* Navegacion */
.main-nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-primary);
    padding: 8px 14px;
    border-radius: 5px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-link.nav-active {
    color: var(--color-accent);
    font-weight: 600;
}

/* Boton CTA del header */
.btn-cta {
    margin-left: 10px;
    white-space: nowrap;
}

/* Hamburguesa */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 3px;
    transition: var(--transition);
}

.menu-toggle.active .hamburger:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.menu-toggle.active .hamburger:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .hamburger:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ========================================
   BOTONES
   ======================================== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: #e55a2b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.4);
}

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

.btn-gold:hover {
    background-color: #e6c200;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-light);
    border: 2px solid var(--color-light);
}

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

/* ========================================
   SECCIONES GENERALES
   ======================================== */
.section {
    padding: 80px 0;
}

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

.section-dark {
    background-color: var(--color-primary);
    color: var(--color-light);
}

.section-darker {
    background-color: var(--color-dark);
    color: var(--color-light);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.section-dark .section-title,
.section-darker .section-title {
    color: var(--color-accent);
}

.section-light .section-title {
    color: var(--color-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.section-dark .section-subtitle,
.section-darker .section-subtitle {
    color: var(--color-gray);
}

/* ========================================
   GRIDS
   ======================================== */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

/* ========================================
   CARDS
   ======================================== */
.card {
    background-color: var(--color-light);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-dark {
    background-color: var(--color-primary);
    color: var(--color-light);
}

.card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-body {
    padding: 25px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.card-dark .card-title {
    color: var(--color-accent);
}

.card-text {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 15px;
}

.card-dark .card-text {
    color: var(--color-gray);
}

/* ========================================
   SERVICIOS
   ======================================== */
.service-card {
    text-align: center;
    padding: 40px 25px;
    background-color: var(--color-primary);
    border-radius: var(--radius);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.service-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-light);
    margin-bottom: 12px;
}

.service-text {
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.6;
}

/* ========================================
   ESTADISTICAS / CONTADORES
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 30px 15px;
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 1rem;
    color: var(--color-gray);
}

/* ========================================
   GANADORES / TESTIMONIOS
   ======================================== */
.winner-card {
    background-color: var(--color-primary);
    border-radius: var(--radius);
    overflow: hidden;
    text-align: center;
    padding: 30px;
    transition: var(--transition);
}

.winner-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.winner-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
    border: 3px solid var(--color-accent);
}

.winner-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-light);
    margin-bottom: 5px;
}

.winner-prize {
    font-size: 1rem;
    color: var(--color-gold);
    font-weight: 600;
    margin-bottom: 15px;
}

.winner-testimonial {
    font-size: 0.9rem;
    color: var(--color-gray);
    font-style: italic;
    line-height: 1.6;
    position: relative;
    padding: 0 10px;
}

.winner-testimonial::before {
    content: '\201C';
    font-size: 3rem;
    color: var(--color-accent);
    position: absolute;
    top: -20px;
    left: -5px;
    font-family: Georgia, serif;
    line-height: 1;
}

/* ========================================
   BLOG
   ======================================== */
.blog-card {
    background-color: var(--color-light);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.blog-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.blog-card-body {
    padding: 25px;
}

.blog-card-meta {
    font-size: 0.85rem;
    color: #999;
    margin-bottom: 10px;
}

.blog-card-meta span {
    margin-right: 15px;
}

.blog-card-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.blog-card-title:hover {
    color: var(--color-accent);
}

.blog-card-excerpt {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.blog-card-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
}

.blog-card-link:hover {
    color: #e55a2b;
}

/* ========================================
   FORMULARIO DE CONTACTO
   ======================================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-primary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--color-gray);
    border-radius: 8px;
    background-color: var(--color-light);
    color: #333;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
    background-color: var(--color-primary);
    color: var(--color-gray);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.footer-logo img {
    height: 45px;
    width: auto;
    margin-bottom: 15px;
}

.footer-logo-text {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-light);
    display: block;
    margin-bottom: 15px;
}

.footer-description {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-gray);
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-light);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--color-accent);
    border-radius: 2px;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-gray);
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.footer-contact i {
    color: var(--color-accent);
    margin-top: 4px;
    flex-shrink: 0;
}

.footer-contact a {
    color: var(--color-gray);
}

.footer-contact a:hover {
    color: var(--color-light);
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--color-light);
    font-size: 1.1rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background-color: var(--color-accent);
    transform: translateY(-3px);
}

.footer-bottom {
    margin-top: 40px;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* ========================================
   WHATSAPP FLOTANTE
   ======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-green);
    border-radius: 50%;
    color: var(--color-light);
    font-size: 1.8rem;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

/* ========================================
   UTILIDADES
   ======================================== */
.text-center {
    text-align: center;
}

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

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

.mb-20 {
    margin-bottom: 20px;
}

.mb-40 {
    margin-bottom: 40px;
}

.mt-30 {
    margin-top: 30px;
}

/* Espacio para el header fijo */
.site-content {
    padding-top: 80px;
}

/* ========================================
   ALERTAS / MENSAJES
   ======================================== */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.alert-success {
    background-color: rgba(37, 211, 102, 0.15);
    color: #1a8f4a;
    border: 1px solid rgba(37, 211, 102, 0.3);
}

.alert-error {
    background-color: rgba(255, 107, 53, 0.15);
    color: #d44a1a;
    border: 1px solid rgba(255, 107, 53, 0.3);
}

/* ========================================
   PAGINACION
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}

.pagination a {
    background-color: var(--color-primary);
    color: var(--color-light);
}

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

.pagination .active {
    background-color: var(--color-accent);
    color: var(--color-light);
}

/* ========================================
   RESPONSIVE - TABLET (< 768px)
   ======================================== */
@media (max-width: 768px) {
    /* Header movil */
    .menu-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--color-light);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 30px 30px;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 1000;
    }

    .main-nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    .nav-link {
        display: block;
        padding: 12px 0;
        font-size: 1.05rem;
        border-bottom: 1px solid var(--color-gray);
    }

    .btn-cta {
        margin-left: 0;
        margin-top: 20px;
        width: 100%;
        text-align: center;
    }

    /* Secciones */
    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    /* Grids a 1 columna */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-number {
        font-size: 2.2rem;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

}

/* ========================================
   RESPONSIVE - MOVIL (< 480px)
   ======================================== */
@media (max-width: 480px) {
    .section-title {
        font-size: 1.5rem;
    }

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

    .stat-number {
        font-size: 2rem;
    }

}