/* ==========================================================================
   VARIABLES CSS Y TOKENS DE DISEÑO
   ========================================================================== */
:root {
    /* Colores principales */
    --color-primary: #16A085;
    --color-primary-light: #1ABC9C;
    --color-primary-dark: #148F77;
    --color-secondary: #40E0D0;
    --color-accent: #E74C3C;
    --color-accent-dark: #C0392B;
    --color-gold: #FFD700;
    --color-gold-dark: #FFC107;
    
    /* Colores neutros */
    --color-white: #ffffff;
    --color-gray-50: #f8f8f8;
    --color-gray-100: #f0f0f0;
    --color-gray-300: #cccccc;
    --color-gray-500: #555555;
    --color-gray-700: #333333;
    --color-gray-900: #222222;
    --color-black: #000000;
    
    /* Colores de fondo */
    --bg-primary: #f0fdfa;
    --bg-overlay: rgba(22, 160, 133, 0.9);
    --bg-card: var(--color-white);
    --bg-footer: rgba(44, 62, 80, 0.9);
    
    /* Typography */
    --font-family-base: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    
    /* Font sizes - Escala tipográfica mejorada */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 2rem;      /* 32px */
    --font-size-4xl: 2.5rem;    /* 40px */
    --font-size-5xl: 3rem;      /* 48px */
    
    /* Spacing - Sistema de espaciado consistente */
    --space-xs: 0.25rem;   /* 4px */
    --space-sm: 0.5rem;    /* 8px */
    --space-md: 1rem;      /* 16px */
    --space-lg: 1.5rem;    /* 24px */
    --space-xl: 2rem;      /* 32px */
    --space-2xl: 3rem;     /* 48px */
    --space-3xl: 4rem;     /* 64px */
    
    /* Border radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index scale */
    --z-negative: -1;
    --z-base: 0;
    --z-dropdown: 10;
    --z-sticky: 20;
    --z-fixed: 30;
    --z-modal: 40;
    --z-tooltip: 50;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   UTILIDADES PARA ACCESIBILIDAD
   ========================================================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-md);
    text-decoration: none;
    border-radius: var(--border-radius-md);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

/* ==========================================================================
   TIPOGRAFÍA
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--space-md) 0;
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--color-gray-900);
}

h1 { font-size: var(--font-size-4xl); }
h2 { 
    font-size: var(--font-size-3xl); 
    color: var(--color-secondary);
}
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin: 0 0 var(--space-md) 0;
    color: var(--color-gray-500);
}

/* Enlaces */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover,
a:focus {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Listas */
ul, ol {
    margin: 0 0 var(--space-md) 0;
    padding-left: var(--space-lg);
}

li {
    margin-bottom: var(--space-xs);
}

.services-list {
    list-style: none;
    padding-left: 0;
}

.services-list li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
}

.services-list li::before {
    content: "•";
    color: var(--color-secondary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* ==========================================================================
   LAYOUT PRINCIPAL
   ========================================================================== */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-negative);
    pointer-events: none;
}

.main-container {
    position: relative;
    z-index: var(--z-base);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.contenedor {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    width: 100%;
}


/* ==========================================================================
   HEADER Y NAVEGACIÓN
   ========================================================================== */
.header {
    background-color: var(--bg-overlay);
    color: var(--color-white);
    padding: var(--space-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header h1 {
    margin: 0 0 var(--space-sm) 0;
    font-size: clamp(var(--font-size-lg), 4vw, var(--font-size-2xl));
    color: var(--color-white);
    text-align: center;
}

/* Navegación */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    z-index: var(--z-dropdown);
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-white);
    margin: 5px 0;
    transition: var(--transition-fast);
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0 0 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-primary-light);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    display: inline-block;
    border: 2px solid transparent;
}

.nav-menu a:hover,
.nav-menu a:focus {
    background-color: var(--color-primary-dark);
    border-color: var(--color-white);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
    background: linear-gradient(
        rgba(0, 0, 0, 0.4), 
        rgba(0, 0, 0, 0.4)
    ), url('images/psgImg.jpg') no-repeat center center/cover;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--space-3xl) var(--space-md);
    color: var(--color-white);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    pointer-events: none;
}

.hero > * {
    position: relative;
    z-index: var(--z-base);
}

.hero h2 {
    font-size: clamp(var(--font-size-2xl), 6vw, var(--font-size-5xl));
    margin-bottom: var(--space-lg);
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    line-height: 1.1;
}

.hero p {
    font-size: clamp(var(--font-size-base), 3vw, var(--font-size-xl));
    margin-bottom: var(--space-2xl);
    color: var(--color-gray-50);
    max-width: 600px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* CTA Button */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cta-button:hover,
.cta-button:focus {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    text-decoration: none;
    color: var(--color-white);
}

/* ==========================================================================
   SECCIONES DE CONTENIDO
   ========================================================================== */
section {
    padding: var(--space-3xl) 0;
    scroll-margin-top: 80px; /* Para navegación sticky */
}

section:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.5);
}

/* Sección Sobre Nosotros */
#nosotros {
    background: var(--bg-card);
    padding: var(--space-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 800px;
    margin: 0 auto var(--space-2xl) auto;
    text-align: center;
    transition: transform var(--transition-base);
}

#nosotros:hover {
    transform: translateY(-5px);
}

#nosotros h2 {
    margin-bottom: var(--space-lg);
}

#nosotros p {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

/* Contenedor para imagen de consultorio */
.consultation-image-container {
    max-width: 600px;
    margin: var(--space-xl) auto;
    text-align: center;
}

.consultation-image-container img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    filter: sepia(10%) saturate(85%) hue-rotate(-10deg) brightness(105%) contrast(102%);
}

.consultation-image-container:hover img {
    box-shadow: var(--shadow-xl);
    transform: translateY(-3px);
}

/* Video Section */
.video-section {
    margin: var(--space-2xl) 0;
    text-align: center;
}

.video-container {
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.video-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    pointer-events: none;
    z-index: var(--z-base);
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
    position: relative;
    z-index: var(--z-base);
}

/* Social Section */
.social-section {
    text-align: center;
    margin: var(--space-2xl) 0;
}

.social-section h3 {
    margin-bottom: var(--space-md);
    color: var(--color-secondary);
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    text-decoration: none;
    font-size: var(--font-size-2xl);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.social-link:hover,
.social-link:focus {
    background: var(--color-primary-dark);
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
    text-decoration: none;
}

/* ==========================================================================
   CARDS Y CONTENEDORES
   ========================================================================== */
.card-container {
    display: grid;
    gap: var(--space-lg);
    margin: var(--space-2xl) 0;
}

.card {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-primary);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card h3 {
    color: var(--color-gray-900);
    margin-bottom: var(--space-md);
    font-size: var(--font-size-xl);
}

.card p {
    color: var(--color-gray-500);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

/* Contenedores específicos */
.service-container {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin: var(--space-2xl) 0;
}

.service-card {
    @extend .card;
}

/* Enfoque Sanne Section */
.enfoque-sanne-section {
    background: linear-gradient(135deg, #f8f9fb 0%, #ffffff 100%);
    padding: var(--spacing-lg) var(--spacing-md);
    position: relative;
    overflow: hidden;
    max-width: 1200px;
    margin: 0 auto;
}

.enfoque-sanne-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-primary);
}

.enfoque-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

.sane-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.featured-card {
    background: white;
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: 0 6px 24px rgba(67, 74, 86, 0.08);
    border: 1px solid rgba(67, 74, 86, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    max-height: 400px;
}

.featured-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.featured-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(67, 74, 86, 0.12);
}

.featured-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border-radius: 50%;
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.card-icon i {
    color: white;
    font-size: 1.3rem;
}

.featured-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.3;
}

.featured-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    font-size: 0.95rem;
}

.feature-highlights {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-highlights li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.feature-highlights i {
    color: var(--primary-color);
    font-size: 0.75rem;
    min-width: 14px;
}

.enfoque-cta {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-primary);
    border-radius: 12px;
    color: white;
    margin-top: var(--spacing-md);
}

.enfoque-cta p {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 500;
}

.enfoque-button {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    box-shadow: 0 3px 12px rgba(255, 255, 255, 0.2);
}

.enfoque-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(255, 255, 255, 0.3);
    background: #f8f9fa;
}

.sane-card {
    @extend .card;
}

/* Session Cards */
.session-container {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    margin: var(--space-2xl) 0;
}

.session-card {
    background: rgba(22, 160, 133, 0.9);
    padding: var(--space-xl);
    border-radius: var(--border-radius-xl);
    color: var(--color-white);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.session-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.05);
    pointer-events: none;
}

.session-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.session-card h3 {
    color: var(--color-white);
    margin-bottom: var(--space-md);
    font-size: var(--font-size-xl);
    position: relative;
    z-index: var(--z-base);
}

.session-card .descripcion {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-md);
    color: var(--color-gray-50);
    position: relative;
    z-index: var(--z-base);
}

.session-card .precio {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-lg);
    color: var(--color-gold);
    position: relative;
    z-index: var(--z-base);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.contratar-btn {
    @extend .btn;
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
    color: var(--color-black);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: var(--z-base);
}

.contratar-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3), 
        transparent);
    transition: left var(--transition-slow);
}

.contratar-btn:hover::before {
    left: 100%;
}

.contratar-btn:hover,
.contratar-btn:focus {
    background: linear-gradient(135deg, var(--color-gold-dark), var(--color-gold));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-black);
}

/* ==========================================================================
   FORMULARIOS
   ========================================================================== */
.form-group {
    margin-bottom: var(--space-lg);
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--color-gray-700);
    background: var(--color-white);
    transition: all var(--transition-base);
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(22, 160, 133, 0.1);
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

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

.error-message {
    display: none;
    margin-top: var(--space-sm);
    color: var(--color-accent);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

/* Contacto Section */
#contacto {
    padding: var(--space-3xl) 0;
    background: var(--bg-primary);
}

.contacto-card {
    background: var(--bg-card);
    padding: var(--space-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.contacto-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--color-primary);
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

.contacto-card button {
    @extend .btn;
    width: 100%;
    background: var(--color-primary);
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    padding: var(--space-lg);
    font-size: var(--font-size-lg);
}

.contacto-card button:hover,
.contacto-card button:focus {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
    background: linear-gradient(135deg, 
        rgba(44, 62, 80, 0.95), 
        rgba(52, 73, 94, 0.95));
    color: var(--color-white);
    padding: var(--space-2xl) var(--space-md);
    text-align: center;
    position: relative;
    margin-top: auto;
    backdrop-filter: blur(10px);
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-gray-300);
}

footer p {
    margin: 0 0 var(--space-md) 0;
    font-size: var(--font-size-sm);
    color: var(--color-gray-100);
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    text-decoration: none;
    font-size: var(--font-size-xl);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.social-icons a:hover,
.social-icons a:focus {
    background: var(--color-primary-dark);
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
    text-decoration: none;
}

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

/* Tablets */
@media (min-width: 768px) {
    :root {
        --font-size-base: 1.125rem; /* 18px */
    }

    .nav-toggle {
        display: none;
    }

    .nav-menu {
        flex-direction: row;
        justify-content: center;
    }

    .hero h2 {
        font-size: clamp(var(--font-size-3xl), 8vw, var(--font-size-5xl));
    }

    .hero p {
        font-size: clamp(var(--font-size-lg), 4vw, var(--font-size-2xl));
    }

    .service-container,
    .sane-container {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .enfoque-sanne-section {
        padding: var(--spacing-lg) var(--spacing-lg);
    }

    .featured-card {
        max-height: 350px;
    }

    .session-container {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    #nosotros {
        max-width: 70%;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .contenedor {
        padding: 0 var(--space-2xl);
    }

    .hero {
        min-height: 70vh;
        padding: var(--space-3xl) var(--space-2xl);
    }

    .service-container,
    .sane-container {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-md);
    }

    .enfoque-sanne-section {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .featured-card {
        max-height: 380px;
    }

    .session-container {
        grid-template-columns: repeat(3, 1fr);
        max-width: 1000px;
        margin: var(--space-2xl) auto;
    }

    #nosotros {
        max-width: 60%;
    }
}

/* Mobile Navigation */
@media (max-width: 767px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-overlay);
        flex-direction: column;
        padding: var(--space-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu--open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        margin: var(--space-sm) 0;
    }

    .nav-menu a {
        display: block;
        width: 100%;
        text-align: center;
        padding: var(--space-md);
    }

    /* Navegación toggle animación */
    .nav-toggle[aria-expanded="true"] span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle[aria-expanded="true"] span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero {
        min-height: 50vh;
        padding: var(--space-2xl) var(--space-md);
    }

    .hero h2 {
        font-size: var(--font-size-2xl);
    }

    .hero p {
        font-size: var(--font-size-base);
    }

    .service-container,
    .sane-container,
    .session-container {
        grid-template-columns: 1fr;
    }

    .card,
    .session-card {
        padding: var(--space-lg);
    }

    #nosotros {
        width: 100%;
        padding: var(--space-lg);
        margin: var(--space-lg) auto;
    }

    .contacto-card {
        padding: var(--space-lg);
        margin: 0 var(--space-md);
    }
}

/* Mobile específico muy pequeño */
@media (max-width: 480px) {
    :root {
        --font-size-base: 0.9rem; /* 14.4px */
        --space-md: 0.75rem;      /* 12px */
        --space-lg: 1rem;         /* 16px */
        --space-xl: 1.25rem;      /* 20px */
    }

    .hero {
        min-height: 40vh;
        padding: var(--space-xl) var(--space-sm);
    }

    .hero h2 {
        font-size: var(--font-size-xl);
        margin-bottom: var(--space-md);
    }

    .hero p {
        font-size: var(--font-size-sm);
        margin-bottom: var(--space-lg);
    }

    .cta-button {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-base);
    }

    .card,
    .session-card {
        padding: var(--space-md);
        border-radius: var(--border-radius-md);
    }

    .session-card h3 {
        font-size: var(--font-size-lg);
    }

    .session-card .precio {
        font-size: var(--font-size-xl);
    }

    .nav-menu a {
        padding: var(--space-lg) var(--space-md);
        margin: var(--space-xs) 0;
    }
}

/* ==========================================================================
   UTILIDADES Y CLASES DE AYUDA
   ========================================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.hidden { display: none; }
.visible { display: block; }

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Estados de focus mejorados para accesibilidad */
*:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

button:focus,
a:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Mejoras de rendimiento */
.hero,
.session-card,
.card {
    will-change: transform;
}

/* Reduce motion para usuarios que lo prefieren */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Mobile specific adjustments */
@media (max-width: 767px) {
    .enfoque-sanne-section {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .sane-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .featured-card {
        max-height: none;
        min-height: 280px;
    }

    .enfoque-intro {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }

    .card-icon {
        width: 45px;
        height: 45px;
    }

    .card-icon i {
        font-size: 1.2rem;
    }

    .featured-card h3 {
        font-size: 1.1rem;
    }

    .enfoque-cta {
        padding: var(--spacing-sm);
    }

    .enfoque-cta p {
        font-size: 0.95rem;
    }
}

/* Print styles */
@media print {
    .nav-toggle,
    .social-icons,
    #canvas-container {
        display: none;
    }
    
    .hero {
        background: none;
        color: var(--color-black);
    }
    
    .session-card,
    .card {
        box-shadow: none;
        border: 1px solid var(--color-gray-300);
    }
}