/* ===== SISTEMA DE DISEÑO: VARIABLES MOTRIZA ===== */
:root {
    /* Paleta de Colores Principal Motriza */
    --motriza-primary: #f22d3a;
    --motriza-primary-dark: #c4171d;
    --motriza-primary-light: #f54a50;
    --motriza-secondary: #4c4e53;
    --motriza-text: #000000;
    --motriza-text-light: #6c757d;
    --motriza-background: #ffffff;
    --motriza-light: #f8f9fa;
    --motriza-border: #dee2e6;
    --motriza-accent: #fff5f5;
    --motriza-success: #28a745;
    --motriza-warning: #ffc107;
    --motriza-info: #17a2b8;

    /* Sistema de Escala */
    --scale-xxs: 0.25rem;
    --scale-xs: 0.5rem;
    --scale-sm: 0.75rem;
    --scale-md: 1rem;
    --scale-lg: 1.5rem;
    --scale-xl: 2rem;
    --scale-xxl: 3rem;
    --scale-xxxl: 4rem;

    /* Tipografía - Montserrat */
    --font-primary: 'Montserrat', sans-serif;
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;

    /* Efectos y Transiciones */
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.15);
    --shadow-primary: 0 8px 25px rgba(242, 45, 58, 0.15);
    --shadow-hover: 0 15px 35px rgba(0, 0, 0, 0.1);
    --shadow-nav: 0 5px 20px rgba(0, 0, 0, 0.15);

    /* Layout */
    --section-padding: var(--scale-xxxl) var(--scale-lg);
    --container-max-width: 1400px;
    --header-height: 80px;
    --bottom-nav-height: 70px;
}

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

html {
    font-family: var(--font-primary);
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-regular);
    color: var(--motriza-text);
    background-color: var(--motriza-background);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    /* REMOVER EL PADDING FIXED DEL BODY */
    /* padding-bottom: var(--bottom-nav-height); */
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--scale-lg);
    width: 100%;
}

.section-padding {
    padding: var(--section-padding);
}

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

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

/* ===== NAVEGACIÓN BOTTOM FIJA ===== */
.specialties-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 3px solid var(--motriza-primary);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    height: var(--bottom-nav-height);
    z-index: 998;
    transition: transform 0.3s ease, top 0.3s ease;
}

.specialties-bottom-nav .nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--scale-lg);
    height: 100%;
    justify-content: center;
}

.specialties-bottom-nav .nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    gap: var(--scale-xl);
}

.specialties-bottom-nav .nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-decoration: none;
    color: var(--motriza-text-light);
    transition: all var(--transition);
    position: relative;
    padding: var(--scale-xs) var(--scale-sm);
    border-radius: var(--border-radius-sm);
    background: transparent;
    cursor: pointer;
}

.specialties-bottom-nav .nav-item:hover {
    color: var(--motriza-primary);
    background: var(--motriza-accent);
    transform: translateY(-1px);
}

.specialties-bottom-nav .nav-item.active {
    color: var(--motriza-primary);
    background: var(--motriza-accent);
}

.specialties-bottom-nav .nav-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-bottom: 4px;
    transition: all var(--transition);
    color: inherit;
}

.specialties-bottom-nav .nav-item.active .nav-icon {
    color: var(--motriza-primary);
    transform: scale(1.1);
}

.specialties-bottom-nav .nav-label {
    font-size: 0.7rem;
    font-weight: var(--font-semibold);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.specialties-bottom-nav .nav-indicator {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--motriza-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

.specialties-bottom-nav .nav-item.active .nav-indicator {
    width: 80%;
}

/* ===== HERO SECTION ESPECIALIDADES ===== */
.specialties-hero-section {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    text-align: center;
    padding: calc(var(--header-height) + 20px) 20px 60px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: brightness(0.6);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(242, 45, 58, 0.4) 0%,
            rgba(0, 0, 0, 0.8) 100%);
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-text {
    color: white;
}

.hero-tag {
    display: inline-block;
    background: rgba(242, 45, 58, 0.2);
    border: 1px solid rgba(242, 45, 58, 0.4);
    border-radius: 30px;
    padding: 8px 20px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.hero-tag span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.title-line {
    display: block;
}

.title-highlight {
    color: var(--motriza-primary);
    display: block;
    background: white;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

/* ===== CONTENIDO DE ESPECIALIDADES ===== */
.specialties-content {
    position: relative;
}

.specialty-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    scroll-margin-top: calc(var(--header-height) + 20px);
    scroll-margin-bottom: calc(var(--bottom-nav-height) + 20px);
}

.specialty-section-container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--scale-lg);
}

.specialty-header {
    text-align: center;
    margin-bottom: var(--scale-xxl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.specialty-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--motriza-primary);
    color: white;
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.specialty-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: var(--font-bold);
    color: var(--motriza-text);
    margin-bottom: 15px;
    line-height: 1.2;
}

.specialty-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--motriza-text-light);
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
}

.specialty-content {
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.specialty-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    margin-bottom: var(--scale-xxl);
}

.specialty-layout.reverse {
    direction: rtl;
}

.specialty-layout.reverse>* {
    direction: ltr;
}

.specialty-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.specialty-intro h3 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--motriza-text);
    margin-bottom: 20px;
    line-height: 1.3;
}

.specialty-intro p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--motriza-text);
    margin-bottom: 15px;
}

.specialty-intro strong {
    color: var(--motriza-primary);
    font-weight: 700;
}

.specialty-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.specialty-features .feature {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.specialty-features .feature:hover {
    border-color: var(--motriza-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(242, 45, 58, 0.15);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--motriza-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--motriza-primary);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--motriza-text);
    margin-bottom: 8px;
}

.feature-text p {
    font-size: 0.9rem;
    color: var(--motriza-text-light);
    line-height: 1.5;
    margin: 0;
}

/* ===== GALERÍA COLLAGE ===== */
.collage-gallery {
    position: relative;
}

.collage-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    height: 100%;
}

.collage-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.5s ease;
}

.collage-item-ex {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.5s ease;
}

.collage-item.large {
    height: 300px;
}

.collage-item-ex.large {
    height: 450px;
}

.collage-item.medium {
    height: 140px;
}

.collage-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.collage-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s ease;
}

.collage-item-ex img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s ease;
}

.collage-item:hover img {
    transform: scale(1.05);
}

.collage-item-ex:hover img {
    transform: scale(1.05);
}

.collage-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 15px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.collage-item:hover .collage-overlay {
    transform: translateY(0);
}

.collage-item-ex:hover .collage-overlay {
    transform: translateY(0);
}

.collage-overlay span {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
}

.collage-overlay i {
    color: var(--motriza-primary);
}

/* ===== SUBCATEGORÍAS ===== */
.subcategories-section {
    margin: var(--scale-xxl) 0;
}

.section-subtitle {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--motriza-text);
    text-align: center;
    margin-bottom: var(--scale-xl);
    position: relative;
}

.section-subtitle::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--motriza-primary);
    border-radius: 2px;
}

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

.subcategories-grid-academy {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.subcategory-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 2px solid var(--motriza-border);
    transition: all 0.3s ease;
}

.subcategory-card:hover {
    border-color: var(--motriza-primary);
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(242, 45, 58, 0.15);
}

.subcategory-icon {
    width: 70px;
    height: 70px;
    background: var(--motriza-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--motriza-primary);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.subcategory-content h4 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--motriza-text);
    margin-bottom: 15px;
    line-height: 1.3;
}

.subcategory-content p {
    font-size: 1rem;
    color: var(--motriza-text-light);
    line-height: 1.6;
    margin-bottom: 20px;
}

.subcategory-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.subcategory-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--motriza-text);
    margin-bottom: 10px;
    line-height: 1.5;
}

.subcategory-features li:last-child {
    margin-bottom: 0;
}

.subcategory-features i {
    color: var(--motriza-primary);
    font-size: 0.9rem;
    margin-top: 3px;
    flex-shrink: 0;
}

/* ===== CTA GLOBAL ===== */
.global-cta {
    color: #4c4e53;
    min-height: 70vh;
    display: flex;
    align-items: center;
    background-color: #4c4e53;
    position: relative;
    z-index: 1;
}

.cta-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    color: #4c4e53;
}

.cta-content h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: white;
    line-height: 1.2;
}

.cta-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-image {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.cta-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* ===== FOOTER ===== */
footer {
    position: relative;
    z-index: 997;
}

/* ===== CERTIFICADOS ===== */
.motriza-especialidades-certificates-wrapper {
    width: 100%;
    max-width: 900px;
    height: 200px;
    background: rgba(255, 255, 255, 0.98);
    border-radius: var(--border-radius-lg);
    padding: var(--scale-md);
    border: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.motriza-especialidades-certificates {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
    padding: var(--scale-xs);
}

.motriza-especialidades-certificates-text {
    position: absolute;
    bottom: var(--scale-xs);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(242, 45, 58, 0.9);
    color: white;
    padding: var(--scale-xxs) var(--scale-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: var(--font-medium);
}

/* ===== MODAL DE CURSOS - FUNCIONAL ===== */
.text-center {
    text-align: center;
}

.mr-2 {
    margin-right: var(--scale-xs);
}

.btn-lg {
    padding: var(--scale-md) var(--scale-xl);
    font-size: 1.1rem;
    font-weight: var(--font-bold);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition);
}

.btn-primary {
    background: var(--motriza-primary);
    color: white;
    border: none;
    padding: var(--scale-sm) var(--scale-lg);
    border-radius: var(--border-radius);
    font-weight: var(--font-semibold);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--scale-xs);
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--motriza-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary);
}

/* MODAL DE CURSOS */
.courses-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    overflow-y: auto;
    padding: var(--scale-lg);
}

.courses-modal.active {
    display: block;
}

.courses-modal-content {
    background: white;
    border-radius: 20px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
    position: relative;
}

.courses-modal-header {
    padding: var(--scale-xs);
    background: linear-gradient(135deg, var(--motriza-primary) 0%, var(--motriza-primary-dark) 100%);
    color: white;
    border-radius: 20px 20px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.courses-modal-header h2 {
    margin: 0;
    font-size: clamp(1.8rem, 3vw, 1.3rem);
    font-weight: var(--font-bold);
    display: flex;
    align-items: center;
    gap: var(--scale-md);
}

.courses-modal-close {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: all var(--transition);
}

.courses-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.courses-modal-body {
    padding: var(--scale-xl);
    max-height: 60vh;
    overflow-y: auto;
}

/* GRID 2,1 fr */
.courses-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--scale-xl);
}

.courses-column {
    display: flex;
    flex-direction: column;
    gap: var(--scale-xl);
}

.category-section {
    background: white;
    border-radius: 16px;
    border: 2px solid var(--motriza-border);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.category-header {
    background: white;
    padding: var(--scale-xs);
    display: flex;
    align-items: center;
    gap: var(--scale-md);
    border-bottom: 3px solid var(--motriza-accent);
}

.category-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--motriza-primary), var(--motriza-primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    flex-shrink: 0;
}

.category-header h3 {
    margin: 0;
    flex: 1;
    font-size: 1rem;
    font-weight: var(--font-bold);
    color: var(--motriza-text);
    line-height: 1.3;
}

.category-count {
    background: var(--motriza-accent);
    color: var(--motriza-primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: var(--font-bold);
    border: 2px solid var(--motriza-primary-light);
}

.courses-list {
    padding: var(--scale-md);
    max-height: 300px;
    overflow-y: auto;
}

.course-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--scale-xxs) var(--scale-xs);
    margin-bottom: var(--scale-xs);
    background: #f8f9fa;
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--motriza-primary);
    transition: all 0.3s ease;
}

.course-item:hover {
    background: white;
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(242, 45, 58, 0.1);
}

.course-name {
    flex: 1;
    font-weight: var(--font-medium);
    color: var(--motriza-text);
    font-size: 0.8rem;
    line-height: 1.4;
    padding-right: var(--scale-sm);
}

.course-hours {
    background: var(--motriza-accent);
    color: var(--motriza-primary);
    padding: 5px 12px;
    border-radius: 15px;
    font-weight: var(--font-bold);
    font-size: 0.75rem;
    white-space: nowrap;
    border: 1px solid var(--motriza-primary-light);
}

.courses-modal-footer {
    padding: var(--scale-lg);
    background: var(--motriza-light);
    border-top: 1px solid var(--motriza-border);
    border-radius: 0 0 20px 20px;
}

.total-summary {
    display: flex;
    justify-content: center;
    gap: var(--scale-xxl);
}

.summary-item {
    display: flex;
    align-items: center;
    gap: var(--scale-sm);
    color: var(--motriza-text);
    font-size: 1rem;
    padding: var(--scale-xs) var(--scale-md);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.summary-item i {
    color: var(--motriza-primary);
    font-size: 1.3rem;
}

.summary-item strong {
    color: var(--motriza-primary);
    font-weight: var(--font-bold);
    margin-left: 4px;
    font-size: 0.85rem;
}

/* Estilos para categorías */
[data-category="operador"] .category-icon {
    background: linear-gradient(135deg, #f22d3a, #c4171d);
}

[data-category="maniobristas"] .category-icon {
    background: linear-gradient(135deg, #4c4e53, #343a40);
}

[data-category="seguridad"] .category-icon {
    background: linear-gradient(135deg, #28a745, #1e7e34);
}

[data-category="especialidades"] .category-icon {
    background: linear-gradient(135deg, #17a2b8, #117a8b);
}

/* Prevenir scroll del body */
body.modal-open {
    overflow: hidden;
}

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

/* Tablets grandes */
@media (max-width: 1199px) {
    .specialty-section-container {
        padding: 0 var(--scale-md);
    }

    .section-padding {
        padding: var(--scale-xxl) var(--scale-md);
    }

    .specialties-bottom-nav .nav-container {
        padding: 0 var(--scale-md);
    }
}

/* Tablets */
@media (max-width: 1024px) {
    :root {
        --bottom-nav-height: 65px;
    }

    .specialties-bottom-nav {
        height: 65px;
    }

    .specialty-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .specialty-layout.reverse {
        direction: ltr;
    }

    .collage-item.large {
        height: 250px;
    }

    .collage-item.medium {
        height: 115px;
    }

    .cta-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .cta-image {
        order: -1;
        height: 300px;
    }

    .specialty-section {
        min-height: auto;
        padding: var(--scale-xxl) 0;
    }

    .specialties-bottom-nav .nav-icon {
        width: 26px;
        height: 26px;
        font-size: 1rem;
    }

    .specialties-bottom-nav .nav-label {
        font-size: 0.65rem;
    }

    .courses-modal {
        padding: var(--scale-md);
    }

    .courses-modal-content {
        max-width: 95%;
    }

    .courses-grid {
        gap: var(--scale-lg);
    }

    .courses-modal-body {
        padding: var(--scale-lg);
    }

    .btn-lg {
        padding: var(--scale-sm) var(--scale-lg);
        font-size: 1rem;
    }
}

/* Tablets pequeñas y móviles grandes */
@media (max-width: 768px) {
    :root {
        --bottom-nav-height: 60px;
    }

    .specialties-bottom-nav {
        height: 60px;
    }

    .specialty-header {
        margin-bottom: var(--scale-xl);
    }

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

    .specialty-features {
        grid-template-columns: 1fr;
    }

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

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

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

    .collage-item.medium {
        height: 180px;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .specialty-section {
        min-height: 100vh;
        padding: var(--scale-xl) 0;
    }

    .specialties-hero-section {
        padding: calc(var(--header-height) + 15px) 15px 40px;
    }

    .specialties-bottom-nav .nav-item {
        padding: var(--scale-xxs) var(--scale-xs);
    }

    .specialties-bottom-nav .nav-icon {
        width: 24px;
        height: 24px;
        font-size: 0.95rem;
    }

    .specialties-bottom-nav .nav-label {
        font-size: 0.6rem;
    }

    .courses-modal-content {
        max-width: 100%;
        margin: var(--scale-md);
    }

    .courses-grid {
        grid-template-columns: 1fr;
        gap: var(--scale-lg);
    }

    .courses-column {
        gap: var(--scale-lg);
    }

    .courses-modal-header {
        padding: var(--scale-lg);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--scale-md);
    }

    .courses-modal-header h2 {
        font-size: 1.6rem;
    }

    .courses-modal-close {
        position: absolute;
        top: var(--scale-md);
        right: var(--scale-md);
    }

    .total-summary {
        gap: var(--scale-lg);
    }

    .summary-item {
        font-size: 0.9rem;
        padding: var(--scale-sm);
    }

    .btn-lg {
        width: 100%;
        max-width: 300px;
    }
}

/* Móviles medianos */
@media (max-width: 575px) {
    :root {
        --bottom-nav-height: 55px;
    }

    .specialties-bottom-nav {
        height: 55px;
    }

    .specialty-section-container {
        padding: 0 var(--scale-sm);
    }

    .specialty-section {
        padding: var(--scale-xl) 0;
    }

    .specialty-intro h3 {
        font-size: 1.5rem;
    }

    .specialty-features .feature {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .subcategory-card {
        padding: 25px;
    }

    .subcategory-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .specialty-section {
        min-height: 100vh;
    }

    .specialties-bottom-nav .nav-container {
        padding: 0 var(--scale-sm);
    }

    .specialties-bottom-nav .nav-inner {
        gap: 1px;
    }

    .specialties-bottom-nav .nav-item {
        padding: 4px 2px;
    }

    .specialties-bottom-nav .nav-icon {
        width: 22px;
        height: 22px;
        font-size: 0.9rem;
        margin-bottom: 2px;
    }

    .specialties-bottom-nav .nav-label {
        font-size: 0.55rem;
    }
}

/* Móviles pequeños */
@media (max-width: 480px) {
    :root {
        --bottom-nav-height: 50px;
    }

    .specialties-bottom-nav {
        height: 50px;
    }

    .subcategories-grid-academy {
        grid-template-columns: 1fr;
    }

    .specialties-bottom-nav .nav-label {
        display: none;
    }

    .specialties-bottom-nav .nav-item {
        justify-content: center;
    }

    .specialties-bottom-nav .nav-icon {
        margin-bottom: 0;
        font-size: 1rem;
    }

    .courses-modal {
        padding: var(--scale-sm);
    }

    .courses-modal-content {
        margin: var(--scale-sm);
    }

    .courses-modal-body {
        padding: var(--scale-md);
        max-height: 70vh;
    }

    .category-header {
        padding: var(--scale-md);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--scale-sm);
    }

    .category-header h3 {
        font-size: 1.2rem;
    }

    .category-count {
        align-self: flex-start;
    }

    .course-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--scale-xs);
    }

    .course-hours {
        align-self: flex-end;
        margin-top: var(--scale-xs);
    }

    .total-summary {
        flex-direction: column;
        align-items: center;
        gap: var(--scale-md);
    }

    .summary-item {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

/* Móviles muy pequeños */
@media (max-width: 375px) {
    :root {
        --bottom-nav-height: 45px;
    }

    .specialties-bottom-nav {
        height: 45px;
    }

    .specialties-bottom-nav .nav-container {
        padding: 0 var(--scale-xs);
    }

    .specialties-bottom-nav .nav-icon {
        width: 20px;
        height: 20px;
        font-size: 0.85rem;
    }
}

/* ===== ESTILOS PARA POSICIONAMIENTO DEL NAVBAR ===== */
.specialties-bottom-nav.nav-hidden {
    transform: translateY(100%);
}

.specialties-bottom-nav.nav-fixed {
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 999 !important;
}

.specialties-bottom-nav.nav-absolute {
    position: absolute !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 998 !important;
}

/* Clase para hover */
.specialties-bottom-nav.hovered {
    transform: translateY(0) !important;
}

/* Clases de respaldo */
.specialties-bottom-nav {
    will-change: transform, position;
}

/* Media queries para el navbar */
@media (max-width: 768px) {
    .specialties-bottom-nav.nav-absolute {
        position: fixed !important;
        bottom: 0 !important;
        top: auto !important;
    }
}