/* ============================================
   GM FITNESS CONCEPT - MAIN STYLES
   Tema oscuro: Negro y Blanco
   ============================================ */

:root {
    --color-bg-primary: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-card: #1a1a1a;
    --color-text-primary: #ffffff;
    --color-text-secondary: #cccccc;
    --color-accent: #ffffff;
    --color-accent-hover: #f0f0f0;
    --color-success: #4caf50;
    --color-error: #f44336;
    --color-warning: #ff9800;
    --spacing-unit: 1rem;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    width: 100%;
}

html {
    overflow-x: hidden;
    width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
    width: 100%;
    box-sizing: border-box;
}

/* ============================================
   TOP HEADER BAR
   ============================================ */

.top-header-bar {
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

.top-header-content {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 1.5rem;
}

.top-header-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition);
    padding: 0.25rem 0;
}

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

@media (max-width: 768px) {
    .top-header-bar {
        padding: 0.4rem 0;
        font-size: 0.8rem;
    }

    .top-header-content {
        gap: 1rem;
    }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.main-header {
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.navbar-brand {
    display: flex;
    align-items: center;
    height: 100%;
}

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.logo-link:hover {
    opacity: 0.9;
}

.navbar-logo {
    height: 100%;
    max-height: 80px;
    width: auto;
    max-width: none;
    object-fit: contain;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.navbar-menu li {
    margin: 0;
}

.navbar-menu a {
    color: var(--color-text-primary);
    text-decoration: none;
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
    position: relative;
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: 0.5rem;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background-color: var(--color-accent);
    transition: var(--transition);
}

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

.navbar-menu a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    position: relative;
}

.navbar-toggle span {
    width: 28px;
    height: 3px;
    background-color: var(--color-text-primary);
    margin: 4px 0;
    transition: var(--transition);
    border-radius: 2px;
}

.navbar-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.navbar-toggle.active span:nth-child(2) {
    opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Styles */
@media (max-width: 768px) {
    .navbar {
        padding: 0.75rem 0;
    }

    .navbar .container {
        padding: 0 1rem;
    }

    .navbar-logo {
        height: 100%;
        max-height: 60px;
        max-width: none;
    }

    .navbar-toggle {
        display: flex;
    }

    .navbar-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-bg-primary);
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 2rem 2rem;
        gap: 0;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.5);
        transition: right 0.3s ease;
        z-index: 1000;
        border-left: 1px solid rgba(255, 255, 255, 0.1);
    }

    .navbar-menu.active {
        right: 0;
    }

    .navbar-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .navbar-menu a {
        display: block;
        width: 100%;
        padding: 1rem 0;
        font-size: 1.1rem;
    }

    .navbar-menu a::after {
        display: none;
    }

    .navbar-menu a:hover {
        padding-left: 0.5rem;
        background-color: transparent;
        color: var(--color-accent);
    }

    /* Overlay cuando el menú está abierto */
    body.menu-open::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.7);
        z-index: 999;
        pointer-events: none;
    }
}

@media (max-width: 480px) {
    .navbar-logo {
        height: 100%;
        max-height: 55px;
        max-width: none;
    }

    .navbar-menu {
        width: 85%;
        padding: 4rem 1.5rem 2rem;
    }
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main-content {
    flex: 1;
    padding: 0;
}

.page-header {
    text-align: center;
    padding: calc(var(--spacing-unit) * 3) 0;
    border-bottom: 1px solid var(--color-bg-card);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-unit);
    color: var(--color-text-primary);
}

.breadcrumb {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--color-accent);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    padding: calc(var(--spacing-unit) * 6) 0;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-unit);
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-unit);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-accent);
}

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

.btn-whatsapp {
    background-color: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background-color: #20BA5A;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* ============================================
   CARDS & GRIDS
   ============================================ */

.features-grid,
.products-grid,
.capacitaciones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: calc(var(--spacing-unit) * 2);
    margin-top: calc(var(--spacing-unit) * 2);
}

.feature-card,
.product-card,
.capacitacion-card {
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius);
    padding: calc(var(--spacing-unit) * 1.5);
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover,
.product-card:hover,
.capacitacion-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(255, 215, 0, 0.2);
}

.product-card a,
.capacitacion-card a {
    text-decoration: none;
    color: inherit;
}

.product-image,
.capacitacion-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-unit);
    overflow: hidden;
}

.product-image img,
.capacitacion-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image img,
.capacitacion-card:hover .capacitacion-image img {
    transform: scale(1.05);
}

.product-info h3,
.capacitacion-info h3 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.product-price,
.capacitacion-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent);
    margin: 0.5rem 0;
}

/* ============================================
   GYM PAGE STYLES
   ============================================ */

.gym-info-section {
    padding: calc(var(--spacing-unit) * 3) 0;
}

.gym-content {
    max-width: 900px;
    margin: 0 auto;
}

.gym-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
}

.gym-content h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.gym-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.services-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.services-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-secondary);
}

.services-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.specialties-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.specialty-item {
    background-color: var(--color-bg-card);
    padding: 1rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-secondary);
}

.specialty-item strong {
    color: var(--color-accent);
    display: block;
    margin-bottom: 0.5rem;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-section {
    padding: calc(var(--spacing-unit) * 3) 0;
    background-color: var(--color-bg-secondary);
}

.contact-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--color-text-primary);
    text-align: center;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.contact-item {
    background-color: var(--color-bg-card);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-item strong {
    color: var(--color-accent);
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-item p {
    color: var(--color-text-secondary);
    margin: 0;
}

.contact-item a {
    color: var(--color-accent);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.whatsapp-contact {
    text-align: center;
    margin: 2rem 0;
}

.btn-whatsapp {
    background-color: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background-color: #20ba5a;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.map-container {
    margin-top: 2rem;
}

.map-container h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.map-wrapper {
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.map-wrapper iframe {
    display: block;
    width: 100%;
}

.map-note {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-style: italic;
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-unit);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-bg-card);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-unit);
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-unit);
}

.alert-error {
    background-color: rgba(244, 67, 54, 0.2);
    border: 1px solid var(--color-error);
    color: var(--color-error);
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.2);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

/* ============================================
   FOOTER
   ============================================ */

.main-footer {
    background-color: var(--color-bg-secondary);
    border-top: 2px solid var(--color-accent);
    padding: calc(var(--spacing-unit) * 3) 0;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: calc(var(--spacing-unit) * 2);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-section h3,
.footer-section h4 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-unit);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-unit);
    flex-wrap: wrap;
}

.social-links a {
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--color-accent-hover);
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: calc(var(--spacing-unit) * 2);
    border-top: 1px solid var(--color-bg-card);
    color: var(--color-text-secondary);
}

/* ============================================
   PRODUCT DETAIL
   ============================================ */

.product-detail,
.capacitacion-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 3);
    margin-top: calc(var(--spacing-unit) * 2);
}

.product-main-image img,
.capacitacion-image-large img {
    width: 100%;
    border-radius: var(--border-radius);
}

.product-thumbnails {
    display: flex;
    gap: var(--spacing-unit);
    margin-top: var(--spacing-unit);
}

.product-thumbnails img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--border-radius);
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.product-thumbnails img:hover {
    border-color: var(--color-accent);
}

.product-price-large {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    margin: var(--spacing-unit) 0;
}

/* ============================================
   VIDEO PLAYER
   ============================================ */

.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ============================================
   UTILITIES
   ============================================ */

.empty-state {
    text-align: center;
    padding: calc(var(--spacing-unit) * 4);
    color: var(--color-text-secondary);
}

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

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-success {
    background-color: var(--color-success);
    color: white;
}

.badge-error {
    background-color: var(--color-error);
    color: white;
}

.badge-completado {
    background-color: var(--color-success);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-left: 0.5rem;
}

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

@media (max-width: 768px) {
    .navbar-toggle {
        display: flex;
    }

    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--spacing-unit);
        border-top: 1px solid var(--color-bg-card);
    }

    .navbar-menu.active {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .product-detail,
    .capacitacion-detail {
        grid-template-columns: 1fr;
    }

    .features-grid,
    .products-grid,
    .capacitaciones-grid {
        grid-template-columns: 1fr;
    }

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

    .contact-info {
        grid-template-columns: 1fr;
    }

    .gym-content h2 {
        font-size: 1.75rem;
    }

    .gym-content h3 {
        font-size: 1.25rem;
    }

    .contact-section h2 {
        font-size: 1.75rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .map-wrapper iframe {
        height: 300px;
    }

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

/* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */

.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #25D366;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    transition: all 0.3s;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-float i {
    font-size: 32px;
    color: white;
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 1.5rem;
        right: 1.5rem;
    }

    .whatsapp-float i {
        font-size: 28px;
    }
}