/* ======= VARIABLES ======= */
:root {
    /* Primary colors - Неоморфизм */
    --primary-color: #2d46b9;
    --primary-dark: #1d2f80;
    --primary-light: #4f69d1;
    
    /* Secondary colors - Раздельно-дополнительная схема */
    --secondary-color: #f18805;
    --secondary-dark: #d27000;
    --secondary-light: #ffa636;
    
    /* Tertiary accents */
    --accent-1: #18a999;
    --accent-2: #e63946;
    
    /* Neutrals */
    --light-color: #ffffff;
    --light-gray: #f5f5f7;
    --medium-gray: #e0e0e0;
    --dark-gray: #333333;
    --text-color: #333333;
    
    /* UI Colors */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Shadow colors for neomorphism */
    --shadow-light: rgba(255, 255, 255, 0.8);
    --shadow-dark: rgba(0, 0, 0, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    --gradient-overlay: linear-gradient(to right, rgba(0,0,0,0.7), rgba(0,0,0,0.3));
    
    /* Border radius */
    --border-radius-sm: 8px;
    --border-radius-md: 15px;
    --border-radius-lg: 20px;
    --border-radius-xl: 30px;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    
    /* Shadows for neomorphism */
    --shadow-neo-sm: 5px 5px 10px var(--shadow-dark), -5px -5px 10px var(--shadow-light);
    --shadow-neo-md: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
    --shadow-neo-lg: 12px 12px 24px var(--shadow-dark), -12px -12px 24px var(--shadow-light);
    --shadow-neo-pressed: inset 3px 3px 6px var(--shadow-dark), inset -3px -3px 6px var(--shadow-light);
    
    /* Font sizes */
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-md: 1rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.5rem;
    --fs-4xl: 3rem;
}

/* ======= BASE STYLES ======= */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', sans-serif;
    color: var(--text-color);
    background-color: var(--light-gray);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Oswald', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--fs-4xl);
}

h2 {
    font-size: var(--fs-3xl);
}

h3 {
    font-size: var(--fs-2xl);
}

h4 {
    font-size: var(--fs-xl);
}

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

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

section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-title {
    font-size: var(--fs-3xl);
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.section-subtitle {
    font-size: var(--fs-lg);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--secondary-color);
}

/* ======= UTILITY CLASSES ======= */
.text-primary {
    color: var(--primary-color) !important;
}

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

.text-light {
    color: var(--light-color) !important;
}

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

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

.bg-secondary {
    background-color: var(--secondary-color) !important;
}

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

.bg-gradient-primary {
    background: var(--gradient-primary) !important;
}

.bg-gradient-secondary {
    background: var(--gradient-secondary) !important;
}

/* ======= COMPONENTS ======= */
/* Buttons */
.btn, button, input[type='submit'] {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 2px solid transparent;
    padding: 0.6rem 1.5rem;
    font-size: var(--fs-md);
    line-height: 1.5;
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-bounce);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    cursor: pointer;
}

.btn:focus, button:focus, input[type='submit']:focus {
    outline: none;
    box-shadow: 0 0 0 0.25rem rgba(45, 70, 185, 0.25);
}

.btn:hover, button:hover, input[type='submit']:hover {
    transform: translateY(-3px);
}

.btn:active, button:active, input[type='submit']:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--light-color);
    border: none;
    box-shadow: 0 4px 15px rgba(45, 70, 185, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 8px 25px rgba(45, 70, 185, 0.4);
    color: var(--light-color);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--light-color);
    border: none;
    box-shadow: 0 4px 15px rgba(241, 136, 5, 0.3);
}

.btn-secondary:hover {
    box-shadow: 0 8px 25px rgba(241, 136, 5, 0.4);
    color: var(--light-color);
}

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

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: var(--light-color);
    box-shadow: 0 8px 25px rgba(45, 70, 185, 0.2);
}

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

.btn-outline-light:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.btn-link {
    color: var(--primary-color);
    background: transparent;
    border: none;
    padding: 0;
    text-decoration: none;
    position: relative;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.btn-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.btn-link i {
    margin-left: var(--spacing-xs);
    transition: all var(--transition-normal);
}

.btn-link:hover i {
    transform: translateX(3px);
}

/* Cards - Neomorphism style */
.card {
    background-color: var(--light-color);
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-neo-md);
    transition: all var(--transition-bounce);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-neo-lg);
}

.card-image {
    overflow: hidden;
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card-image img {
    width: 100%;
    transition: transform var(--transition-slow);
    display: block;
    object-fit: cover;
}

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

.card-body {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    color: var(--primary-color);
    margin-top: 0;
    font-weight: 700;
}

.card-text {
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

/* Forms */
.form-control, .form-select {
    display: block;
    width: 100%;
    padding: 0.8rem 1.2rem;
    font-size: var(--fs-md);
    font-weight: 400;
    line-height: 1.5;
    color: var(--dark-gray);
    background-color: var(--light-color);
    background-clip: padding-box;
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
}

.form-control:focus, .form-select:focus {
    color: var(--dark-gray);
    background-color: var(--light-color);
    border-color: var(--primary-light);
    outline: 0;
    box-shadow: var(--shadow-neo-pressed);
}

.form-label {
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--dark-gray);
}

.form-check-input {
    width: 1em;
    height: 1em;
    margin-top: 0.25em;
    vertical-align: top;
    background-color: var(--light-color);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    border: 1px solid var(--medium-gray);
    appearance: none;
    print-color-adjust: exact;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label {
    margin-bottom: 0;
}

/* ======= LAYOUT & SECTIONS ======= */
/* Header & Navigation */
header {
    z-index: 1000;
    width: 100%;
}

.navbar {
    background-color: var(--light-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-md) 0;
    transition: all var(--transition-normal);
}

.navbar-brand {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    font-size: var(--fs-xl);
    color: var(--primary-color);
}

.navbar-toggler {
    border: none;
    padding: 0.25rem 0.75rem;
    font-size: var(--fs-xl);
    line-height: 1;
    background-color: transparent;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    display: inline-block;
    width: 1.5em;
    height: 1.5em;
    vertical-align: middle;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100%;
}

.navbar-scrolled {
    padding: var(--spacing-sm) 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.nav-link {
    font-weight: 600;
    color: var(--dark-gray);
    padding: 0.5rem 1rem;
    transition: all var(--transition-normal);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--primary-color);
    transition: all var(--transition-normal);
}

.nav-link:hover::after {
    width: 80%;
    left: 10%;
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--light-color);
}

.hero-section .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-section h1 {
    font-size: var(--fs-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    color: var(--light-color);
}

.hero-section p {
    font-size: var(--fs-lg);
    margin-bottom: var(--spacing-lg);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    color: var(--light-color);
}

/* Cursos Section */
.curso-card .card-image {
    height: 250px;
}

.curso-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--fs-sm);
    color: var(--dark-gray);
}

.curso-details span {
    display: flex;
    align-items: center;
}

.curso-details i {
    margin-right: 5px;
    color: var(--primary-color);
}

/* Instructores Section */
.instructor-card {
    text-align: center;
}

.instructor-card .card-image {
    padding-top: var(--spacing-lg);
}

.instructor-card .card-image img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--light-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.instructor-role {
    font-size: var(--fs-md);
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--light-color);
    transition: all var(--transition-normal);
    text-decoration: none;
}

.social-link:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

/* Portfolio Section */
.portfolio-card .card-image {
    height: 240px;
}

.portfolio-student {
    font-size: var(--fs-sm);
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

/* Recursos Externos Section */
.recurso-card {
    height: 100%;
}

/* Testimonios Section */
.testimonial-rating {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.testimonial-quote {
    font-style: italic;
    position: relative;
    padding: 0 var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.testimonial-quote::before {
    content: '"';
    font-size: 3rem;
    position: absolute;
    left: -10px;
    top: -20px;
    color: var(--primary-color);
    opacity: 0.2;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: var(--spacing-md);
}

/* Noticias Section */
.news-card .card-image {
    height: 220px;
}

.news-date {
    font-size: var(--fs-sm);
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

/* Empresas Section */
.client-logo {
    background-color: var(--light-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-neo-sm);
    transition: all var(--transition-normal);
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.client-logo:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-neo-md);
}

.client-logo img {
    max-width: 80%;
    max-height: 60px;
    filter: grayscale(100%);
    transition: all var(--transition-normal);
}

.client-logo:hover img {
    filter: grayscale(0%);
}

/* Contact Section */
.contact-info h3 {
    font-size: var(--fs-lg);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
}

.contact-info h3 i {
    margin-right: var(--spacing-sm);
}

.contact-item {
    background-color: var(--light-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-neo-sm);
    margin-bottom: var(--spacing-md);
}

.contact-map {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-neo-sm);
}

.contact-form-wrapper {
    background-color: var(--light-color);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-neo-md);
}

/* Footer */
.footer {
    background-color: #2d3748;
    color: #cbd5e0;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-title {
    color: var(--light-color);
    font-size: var(--fs-lg);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

.footer-text {
    margin-bottom: var(--spacing-lg);
    font-size: var(--fs-md);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-links a {
    color: #cbd5e0;
    text-decoration: none;
    transition: all var(--transition-normal);
    display: inline-block;
}

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

.footer .social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.footer .social-link {
    color: var(--light-color);
    text-decoration: none;
    transition: all var(--transition-normal);
    background-color: transparent;
    width: auto;
    height: auto;
}

.footer .social-link:hover {
    color: var(--secondary-color);
}

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

.footer-bottom p {
    margin-bottom: 0;
}

.footer-bottom a {
    color: #cbd5e0;
    text-decoration: none;
    transition: all var(--transition-normal);
}

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

.footer-form .input-group {
    box-shadow: var(--shadow-neo-sm);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.footer-form .form-control {
    border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
    border: none;
}

.footer-form .btn {
    border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
}

/* Success Page */
.success-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

.success-card {
    background-color: var(--light-color);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-neo-lg);
    text-align: center;
}

.success-icon {
    font-size: 5rem;
    color: var(--success-color);
    margin-bottom: var(--spacing-md);
}

/* About, Privacy, Terms Pages */
.page-content {
    padding-top: 120px;
}

/* Cookie Consent */
#cookieConsent {
    background-color: rgba(0, 0, 0, 0.85);
    color: var(--light-color);
    padding: var(--spacing-lg);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    text-align: center;
}

#cookieConsent p {
    margin-bottom: var(--spacing-sm);
}

#acceptCookies {
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
}

#acceptCookies:hover {
    background-color: var(--primary-dark);
}

/* ======= ANIMATIONS ======= */
.animated {
    animation-duration: 1s;
    animation-fill-mode: both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

.fade-in {
    animation-name: fadeIn;
}

.bounce {
    animation-name: bounce;
}

.float {
    animation: float 3s ease-in-out infinite;
}

/* ======= MEDIA QUERIES ======= */
@media (max-width: 1199.98px) {
    :root {
        --fs-4xl: 2.5rem;
        --fs-3xl: 2.2rem;
        --fs-2xl: 1.8rem;
    }
    
    .hero-section h1 {
        font-size: var(--fs-3xl);
    }
    
    .hero-section p {
        font-size: var(--fs-md);
    }
}

@media (max-width: 991.98px) {
    :root {
        --fs-4xl: 2.3rem;
        --fs-3xl: 2rem;
        --fs-2xl: 1.6rem;
        --fs-xl: 1.3rem;
    }
    
    .navbar-collapse {
        background-color: var(--light-color);
        padding: var(--spacing-md);
        border-radius: var(--border-radius-md);
        box-shadow: var(--shadow-neo-md);
        margin-top: var(--spacing-sm);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .curso-card .card-image,
    .portfolio-card .card-image,
    .news-card .card-image {
        height: 200px;
    }
}

@media (max-width: 767.98px) {
    :root {
        --fs-4xl: 2rem;
        --fs-3xl: 1.8rem;
        --fs-2xl: 1.5rem;
        --fs-xl: 1.2rem;
        --fs-lg: 1.1rem;
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-section {
        text-align: center;
    }
    
    .hero-section .btn {
        display: block;
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .contact-form-wrapper,
    .contact-item {
        padding: var(--spacing-md);
    }
    
    .footer-title {
        margin-top: var(--spacing-lg);
    }
}

@media (max-width: 575.98px) {
    :root {
        --fs-4xl: 1.8rem;
        --fs-3xl: 1.6rem;
        --fs-2xl: 1.4rem;
        --fs-xl: 1.2rem;
        --fs-lg: 1rem;
        --fs-md: 0.95rem;
    }
    
    .hero-section {
        min-height: auto;
        padding: 120px 0 var(--spacing-xl);
    }
    
    .curso-card .card-image,
    .portfolio-card .card-image,
    .news-card .card-image {
        height: 180px;
    }
    
    .instructor-card .card-image img {
        width: 120px;
        height: 120px;
    }
    
    .client-logo {
        height: 80px;
    }
}