/* 
* DrevaListra Shop - Main Stylesheet
* Theme: Stretching for office workers
* Version: 1.0
*/

/* ====================
   TABLE OF CONTENTS
   ====================
   1. Base Styles & Reset
   2. Typography
   3. Layout & Grid
   4. Header & Navigation
   5. Hero Section
   6. Problem Section
   7. Solution Section
   8. Courses Section
   9. Trainers Section
   10. Testimonials Section
   11. FAQ Section
   12. Newsletter Section
   13. Contact Section
   14. Footer
   15. Utility Classes
   16. Animations
   17. Media Queries
   18. Cookie Consent
   19. Back to Top Button
   ==================== */

/* ==================== 1. Base Styles & Reset ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Main colors */
    --primary-color: #3A8DAD;
    --primary-dark: #307A96;
    --primary-light: #4FABCF;
    --accent-color: #82C91E;
    --accent-dark: #6BA219;
    --accent-light: #9DDE39;
    --background-color: #F7F9FA;
    --text-color: #222222;
    --text-light: #666666;
    --white: #FFFFFF;
    --light-gray: #E5E9EC;
    --medium-gray: #B8C2C8;
    --dark-gray: #5A6268;
    
    /* Font families */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Inter', sans-serif;
    
    /* Font sizes */
    --text-xs: 0.75rem;   /* 12px */
    --text-sm: 0.875rem;  /* 14px */
    --text-base: 1rem;    /* 16px */
    --text-md: 1.125rem;  /* 18px */
    --text-lg: 1.25rem;   /* 20px */
    --text-xl: 1.5rem;    /* 24px */
    --text-2xl: 1.875rem; /* 30px */
    --text-3xl: 2.25rem;  /* 36px */
    --text-4xl: 3rem;     /* 48px */
    
    /* Spacing */
    --spacing-xs: 0.25rem; /* 4px */
    --spacing-sm: 0.5rem;  /* 8px */
    --spacing-md: 1rem;    /* 16px */
    --spacing-lg: 1.5rem;  /* 24px */
    --spacing-xl: 2rem;    /* 32px */
    --spacing-2xl: 3rem;   /* 48px */
    --spacing-3xl: 4rem;   /* 64px */
    
    /* Border radius */
    --radius-sm: 0.25rem;  /* 4px */
    --radius-md: 0.5rem;   /* 8px */
    --radius-lg: 1rem;     /* 16px */
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: var(--body-font);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    outline: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

/* ==================== 2. Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

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

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

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

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

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: var(--radius-full);
}

/* ==================== 3. Layout & Grid ==================== */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

/* ==================== 4. Header & Navigation ==================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    padding: var(--spacing-md) 0;
}

.main-header.scrolled {
    padding: var(--spacing-sm) 0;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 50px;
    width: auto;
    transition: height var(--transition-normal);
}

.scrolled .logo {
    height: 40px;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--text-color);
    transition: color var(--transition-fast);
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    transition: transform var(--transition-fast);
}

.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--text-color);
    transition: all var(--transition-fast);
}

/* ==================== 5. Hero Section ==================== */
.hero {
    height: 100vh;
    min-height: 600px;
    background-image: url('images/hero.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    position: relative;
    margin-top: 0;
    padding: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 650px;
    color: var(--white);
    animation: fadeIn 1s ease-out;
}

.hero-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--spacing-lg);
    color: var(--white);
}

.hero-subtitle {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-xl);
    color: var(--white);
}

.hero-cta {
    display: inline-block;
    font-size: var(--text-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    animation: pulseGlow 2s infinite;
}

/* ==================== 6. Problem Section ==================== */
.problem-section {
    background-color: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.problem-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    background-color: var(--background-color);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

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

.problem-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    height: 60px;
    width: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(58, 141, 173, 0.1);
    border-radius: var(--radius-full);
}

.problem-card h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.problem-card p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* ==================== 7. Solution Section ==================== */
.solution-section {
    background-color: var(--primary-color);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.curved-bg {
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    background-color: var(--white);
    border-radius: 0 0 50% 50% / 0 0 100px 100px;
}

.solution-section .section-title {
    color: var(--white);
}

.solution-section .section-title::after {
    background-color: var(--white);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.solution-card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.solution-card:hover {
    transform: translateY(-10px);
    background-color: rgba(255, 255, 255, 0.2);
}

.solution-icon {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    height: 70px;
    width: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.solution-card:hover .solution-icon {
    background-color: var(--accent-color);
    color: var(--white);
}

.solution-card h3 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.solution-card p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0;
}

.solution-feature {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    box-shadow: var(--shadow-lg);
}

.solution-feature-image {
    height: 100%;
}

.solution-feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.solution-feature-content {
    padding: var(--spacing-xl);
    color: var(--text-color);
}

.solution-feature-content h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.solution-feature-content ul {
    list-style: disc;
    padding-left: var(--spacing-xl);
    margin-top: var(--spacing-md);
}

.solution-feature-content li {
    margin-bottom: var(--spacing-sm);
}

/* ==================== 8. Courses Section ==================== */
.courses-section {
    background-color: var(--background-color);
}

.course-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.course-filter {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    background-color: var(--white);
    color: var(--text-color);
    font-weight: 500;
    transition: all var(--transition-fast);
    border: 1px solid var(--light-gray);
}

.course-filter:hover {
    background-color: var(--light-gray);
}

.course-filter.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.course-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.course-image {
    position: relative;
    height: 200px;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: var(--accent-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
}

.course-content {
    padding: var(--spacing-lg);
}

.course-content h3 {
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-lg);
}

.course-content p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    min-height: 80px;
}

.course-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
    font-size: var(--text-sm);
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--light-gray);
    padding-top: var(--spacing-md);
}

.course-price {
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--primary-color);
}

/* ==================== 9. Trainers Section ==================== */
.trainers-section {
    background-color: var(--white);
}

.trainers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.trainer-card {
    background-color: var(--background-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.trainer-card:hover {
    transform: translateY(-10px);
}

.trainer-image {
    height: 250px;
}

.trainer-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.trainer-content {
    padding: var(--spacing-lg);
}

.trainer-content h3 {
    margin-bottom: var(--spacing-xs);
}

.trainer-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: var(--text-sm);
}

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

.trainer-specialties {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.trainer-specialties span {
    background-color: rgba(58, 141, 173, 0.1);
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
}

/* ==================== 10. Testimonials Section ==================== */
.testimonials-section {
    background-color: var(--background-color);
    position: relative;
    overflow: hidden;
}

.testimonials-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("images/test.jpg");
    opacity: 0.5;
    z-index: 0;
}

.testimonials-carousel {
    position: relative;
    z-index: 1;
    display: flex;
    overflow: hidden;
}

.testimonial-card {
    flex: 0 0 100%;
    padding: var(--spacing-xl);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast);
}

.testimonial-content {
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-top: var(--spacing-lg);
}

.testimonial-quote {
    position: absolute;
    top: 0;
    left: 0;
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.2;
}

.testimonial-content p {
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.testimonial-rating {
    color: #FFD700;
    font-size: var(--text-md);
    margin-bottom: var(--spacing-sm);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.testimonial-author h4 {
    margin-bottom: var(--spacing-xs);
    font-size: var(--text-md);
}

.testimonial-author p {
    color: var(--text-light);
    font-size: var(--text-sm);
    margin-bottom: 0;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.testimonial-prev,
.testimonial-next {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--white);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.testimonial-prev:hover,
.testimonial-next:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.testimonial-dots {
    display: flex;
    gap: var(--spacing-sm);
}

.testimonial-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background-color: var(--medium-gray);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.testimonial-dot.active {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

.testimonial-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ==================== 11. FAQ Section ==================== */
.faq-section {
    background-color: var(--white);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--light-gray);
    margin-bottom: var(--spacing-md);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    cursor: pointer;
}

.faq-question h3 {
    margin-bottom: 0;
    font-size: var(--text-lg);
    padding-right: var(--spacing-md);
}

.faq-toggle {
    font-size: var(--text-md);
    color: var(--primary-color);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
    padding: 0 var(--spacing-md) 0 0;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding-bottom: var(--spacing-md);
}

/* ==================== 12. Newsletter Section ==================== */
.newsletter-section {
    background-color: var(--primary-color);
    padding: var(--spacing-2xl) 0;
}

.newsletter-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.newsletter-content {
    color: var(--white);
}

.newsletter-content h2 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.newsletter-content p {
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    position: relative;
}

.newsletter-form input {
    width: 100%;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: none;
    background-color: rgba(255, 255, 255, 0.9);
}

.newsletter-form button {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.form-disclaimer {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-sm);
}

.form-disclaimer a {
    color: var(--white);
    text-decoration: underline;
}

/* ==================== 13. Contact Section ==================== */
.contact-section {
    background-color: var(--background-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-card {
    background-color: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    font-size: var(--text-xl);
    color: var(--primary-color);
    background-color: rgba(58, 141, 173, 0.1);
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-details h3 {
    margin-bottom: var(--spacing-xs);
    font-size: var(--text-md);
}

.contact-details p {
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.google-map {
    margin-top: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-header {
    margin-bottom: var(--spacing-md);
}

.form-header h3 {
    margin-bottom: var(--spacing-xs);
}

.form-header p {
    color: var(--text-light);
}

.contact-form .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.contact-form label {
    font-weight: 500;
    color: var(--text-color);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-md);
    background-color: var(--background-color);
    transition: border var(--transition-fast);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--primary-color);
}

.form-checkbox {
    flex-direction: row !important;
    align-items: center;
    gap: var(--spacing-sm) !important;
}

.form-checkbox input {
    width: auto;
}

.form-checkbox label {
    font-size: var(--text-sm);
    color: var(--text-light);
}

/* ==================== 14. Footer ==================== */
.main-footer {
    background-color: #2A2A2A;
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-logo img {
    filter: brightness(0) invert(1);
    height: 40px;
    width: auto;
}

.footer-logo p {
    opacity: 0.8;
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-nav-column h3 {
    color: var(--white);
    font-size: var(--text-md);
    margin-bottom: var(--spacing-md);
}

.footer-nav-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-nav-column a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-nav-column a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    font-size: var(--text-sm);
    opacity: 0.7;
}

.payment-methods {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--text-xl);
    opacity: 0.7;
}

/* ==================== 15. Utility Classes ==================== */
.btn-primary {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-align: center;
}

.btn-primary:hover {
    background-color: var(--accent-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    display: inline-block;
    background-color: var(--white);
    color: var(--primary-color);
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--primary-color);
    transition: all var(--transition-fast);
    text-align: center;
}

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

.btn-text {
    color: var(--white);
    text-decoration: underline;
    transition: opacity var(--transition-fast);
}

.btn-text:hover {
    opacity: 0.8;
    color: var(--white);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==================== 16. Animations ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulseGlow {
    0% {
        box-shadow: 0 0 0 0 rgba(130, 201, 30, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(130, 201, 30, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(130, 201, 30, 0);
    }
}

.fade-in {
    animation: fadeIn 1s ease-out;
}

/* ==================== 17. Media Queries ==================== */
@media (max-width: 1024px) {
    :root {
        --text-4xl: 2.5rem;
        --text-3xl: 2rem;
        --text-2xl: 1.75rem;
        --text-xl: 1.25rem;
    }
    
    .solution-feature {
        grid-template-columns: 1fr;
    }
    
    .solution-feature-image {
        height: 300px;
    }
    
    .newsletter-container {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 3rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-list {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-lg) 0;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-normal);
    }
    
    .nav-list.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    
    .hero-content {
        text-align: center;
        margin: 0 auto;
    }
    
    .problem-grid,
    .solution-grid,
    .trainers-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .footer-nav {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --text-4xl: 2rem;
        --text-3xl: 1.75rem;
        --text-2xl: 1.5rem;
        --text-xl: 1.25rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .course-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .course-filter {
        width: 100%;
        text-align: center;
    }
    
    .footer-nav {
        grid-template-columns: 1fr;
    }
}

/* ==================== 18. Cookie Consent ==================== */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    padding: var(--spacing-md);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: none;
}

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.cookie-content p {
    margin-bottom: 0;
    padding-right: var(--spacing-md);
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .cookie-content p {
        padding-right: 0;
    }
}

/* ==================== 19. Back to Top Button ==================== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-5px);
}