:root {
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-secondary: 'Lora', serif;

    --color-text-light: #1a1d2c;
    --color-background-light: #f8f9fa;
    --color-primary-light: #2a62ff;
    --color-secondary-light: #f0f3ff;
    --color-accent-light: #ff4d88;
    --color-border-light: #dde2e8;
    --color-card-light: #ffffff;
    --color-subtle-light: #6c757d;

    --color-text-dark: #e8e9f1;
    --color-background-dark: #12141c;
    --color-primary-dark: #5c85ff;
    --color-secondary-dark: #232a3b;
    --color-accent-dark: #ff70a0;
    --color-border-dark: #343a4a;
    --color-card-dark: #1a1d2c;
    --color-subtle-dark: #a0a7b5;

    --color-text: var(--color-text-light);
    --color-background: var(--color-background-light);
    --color-primary: var(--color-primary-light);
    --color-secondary: var(--color-secondary-light);
    --color-accent: var(--color-accent-light);
    --color-border: var(--color-border-light);
    --color-card: var(--color-card-light);
    --color-subtle: var(--color-subtle-light);

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08);

    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;

    --transition-fast: 0.2s ease-in-out;
    --transition-medium: 0.4s ease-in-out;
    --transition-slow: 0.6s cubic-bezier(0.25, 1, 0.5, 1);

    --font-size-xs: clamp(0.75rem, 0.5vw + 0.65rem, 0.9rem);
    --font-size-sm: clamp(0.875rem, 0.5vw + 0.775rem, 1rem);
    --font-size-base: clamp(1rem, 0.5vw + 0.9rem, 1.125rem);
    --font-size-md: clamp(1.125rem, 1vw + 0.9rem, 1.5rem);
    --font-size-lg: clamp(1.5rem, 1.5vw + 1.2rem, 2.25rem);
    --font-size-xl: clamp(2rem, 2.5vw + 1.5rem, 3.5rem);
    --font-size-xxl: clamp(2.5rem, 4vw + 1.5rem, 4.5rem);

    --container-width: 1240px;
    --container-padding: 2rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-text: var(--color-text-dark);
        --color-background: var(--color-background-dark);
        --color-primary: var(--color-primary-dark);
        --color-secondary: var(--color-secondary-dark);
        --color-accent: var(--color-accent-dark);
        --color-border: var(--color-border-dark);
        --color-card: var(--color-card-dark);
        --color-subtle: var(--color-subtle-dark);
    }
}

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

html {
    font-size: 100%;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.65;
    font-size: var(--font-size-base);
    transition: background-color var(--transition-medium), color var(--transition-medium);
    overflow-x: hidden;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: 1rem;
    text-wrap: balance;
}

h1 { font-size: var(--font-size-xxl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-md); }

p {
    margin-bottom: 1.5rem;
    color: var(--color-subtle);
}

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

a:hover {
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
}

ul {
    list-style: none;
}

section {
    padding: 6rem 0;
    overflow: hidden;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    font-size: var(--font-size-md);
    color: var(--color-subtle);
}

.cta-button {
    display: inline-block;
    font-weight: 600;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    font-size: var(--font-size-sm);
}

.cta-button.primary {
    background-color: var(--color-primary);
    color: #fff;
}

.cta-button.primary:hover {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cta-button.secondary {
    background-color: var(--color-secondary);
    color: var(--color-primary);
    border-color: var(--color-secondary);
}

.cta-button.secondary:hover {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}


.main-header {
    background-color: var(--color-background);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

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

.logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-text);
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
}

.logo-icon {
    color: var(--color-primary);
    margin-right: 0.5rem;
    width: 32px;
    height: 32px;
    transition: transform var(--transition-medium);
}

.logo:hover .logo-icon {
    transform: rotate(180deg);
}

.main-nav ul {
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: var(--color-text);
    font-weight: 500;
    position: relative;
    padding: 0.25rem 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-medium);
}

.main-nav a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.main-nav a:hover::after {
    width: 100%;
}

.hero-section {
    padding: 8rem 0;
    display: flex;
    align-items: center;
    position: relative;
    min-height: 90vh;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -20%;
    width: 500px;
    height: 500px;
    background-color: var(--color-secondary);
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.5;
    z-index: -1;
}

.hero-content {
    max-width: 600px;
    text-align: left;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
}

.hero-content .subtitle {
    font-size: var(--font-size-md);
    color: var(--color-subtle);
    margin-bottom: 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-image-container {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    max-width: 700px;
    z-index: 1;
}

.hero-image {
    width: 100%;
    border-radius: var(--border-radius-lg);
    opacity: 0.5;
}

.pillars-section {
    background-color: var(--color-secondary);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.pillar-item {
    background-color: var(--color-card);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-medium);
    text-align: center;
}

.pillar-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.pillar-item svg {
    margin: 0 auto 1.5rem;
    color: var(--color-primary);
    width: 48px;
    height: 48px;
}

.pillar-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.pillar-item p {
    color: var(--color-subtle);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

.courses-section {
    position: relative;
}

.tabs-container {
    background-color: var(--color-card);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.tabs-nav {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tabs-nav::-webkit-scrollbar {
    height: 4px;
}
 
.tabs-nav::-webkit-scrollbar-track {
    background: var(--color-secondary);
}
 
.tabs-nav::-webkit-scrollbar-thumb {
    background: var(--color-primary); 
    border-radius: 4px;
}

.tab-link {
    padding: 1rem 1.5rem;
    border: none;
    background-color: transparent;
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-subtle);
    position: relative;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.tab-link::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background-color: var(--color-primary);
    transition: width var(--transition-medium);
}

.tab-link.active {
    color: var(--color-primary);
}

.tab-link.active::after {
    width: 80%;
}

.tab-pane {
    display: none;
    padding: 0 1rem;
    animation: fadeIn 0.5s ease;
}

.tab-pane.active {
    display: block;
}

.tab-pane-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.tab-description h3 {
    margin-bottom: 1.5rem;
}

.tab-description p {
    margin-bottom: 1rem;
}

.tab-details {
    background-color: var(--color-secondary);
    padding: 2rem;
    border-radius: var(--border-radius-md);
}

.tab-details h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.tab-details ul {
    margin-bottom: 2rem;
}

.tab-details li {
    padding-left: 2rem;
    position: relative;
    margin-bottom: 1rem;
}

.tab-details li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.2rem;
}

.tab-details p {
    font-size: var(--font-size-sm);
    color: var(--color-subtle);
    margin-bottom: 0;
}


.how-it-works-section {
    background-color: var(--color-secondary);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
    position: relative;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 12.5%;
    width: 75%;
    height: 2px;
    background: repeating-linear-gradient(90deg, var(--color-border), var(--color-border) 6px, transparent 6px, transparent 12px);
    z-index: 0;
}

.step-item {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    margin: 0 auto 1.5rem;
    position: relative;
    z-index: 2;
}

.step-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background-color: var(--color-card);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: -30px auto 1.5rem;
    border: 4px solid var(--color-secondary);
    box-shadow: var(--shadow-sm);
}

.step-icon svg {
    color: var(--color-primary);
}

.step-item h3 {
    font-size: 1.2rem;
}

.how-it-works-image-container {
    max-width: 900px;
    margin: 0 auto;
}

.how-it-works-image {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}


.testimonials-section {
    background-color: var(--color-background);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background-color: var(--color-card);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.testimonial-card blockquote {
    flex-grow: 1;
    margin: 0 0 1.5rem;
    position: relative;
    padding-left: 2.5rem;
}

.testimonial-card blockquote::before {
    content: '“';
    position: absolute;
    left: -0.5rem;
    top: -1.5rem;
    font-size: 5rem;
    font-family: var(--font-secondary);
    color: var(--color-primary);
    opacity: 0.2;
}

.testimonial-card p {
    font-style: italic;
    color: var(--color-subtle);
}

.testimonial-card cite {
    font-style: normal;
    font-weight: 600;
}

.testimonial-card .name {
    display: block;
    color: var(--color-text);
}

.testimonial-card .role {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-subtle);
    font-weight: 400;
}


.faq-section {
    background-color: var(--color-secondary);
}

.faq-header-link {
    color: inherit;
    text-decoration: none;
}

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

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

.accordion-item {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-item:last-child {
    margin-bottom: 0;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem;
    text-align: left;
    background-color: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    transition: transform var(--transition-medium);
    flex-shrink: 0;
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.accordion-content p {
    padding: 0 1.5rem 1.5rem;
    margin-bottom: 0;
    color: var(--color-subtle);
    font-size: var(--font-size-sm);
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}


.final-cta-section {
    background-color: var(--color-background);
}

.final-cta-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    background-color: var(--color-secondary);
    padding: 5rem;
    border-radius: var(--border-radius-lg);
}

.cta-content h2 {
    font-size: var(--font-size-xl);
}

.cta-content p {
    font-size: var(--font-size-base);
    margin-bottom: 2rem;
}

.mini-reg-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.mini-reg-form input {
    flex-grow: 1;
    padding: 0.8rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    background-color: var(--color-card);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.mini-reg-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-secondary);
}

.thank-you-msg {
    background-color: var(--color-primary);
    color: #fff;
    padding: 1rem;
    border-radius: var(--border-radius-md);
    text-align: center;
}

.thank-you-msg p {
    margin-bottom: 0;
    color: #fff;
}

.form-privacy-note {
    font-size: var(--font-size-xs);
    color: var(--color-subtle);
    margin-bottom: 0;
}

.form-privacy-note a {
    color: var(--color-subtle);
    text-decoration: underline;
}

.cta-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.cta-image {
    width: 100%;
    max-width: 400px;
    border-radius: var(--border-radius-lg);
}


.main-footer {
    background-color: var(--color-card);
    color: var(--color-subtle);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--color-subtle);
}

.footer-column a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.footer-logo {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.footer-column.about p {
    font-size: var(--font-size-sm);
}

.footer-column.contact address {
    font-style: normal;
    line-height: 1.8;
    font-size: var(--font-size-sm);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 2rem;
    text-align: center;
    font-size: var(--font-size-xs);
}


.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-card);
    color: var(--color-text);
    padding: 1.5rem;
    box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.1);
    z-index: 2000;
    transform: translateY(100%);
    transition: transform var(--transition-medium);
    display: none;
}

.cookie-banner.visible {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    gap: 2rem;
}

.cookie-content p {
    margin-bottom: 0;
}

#cookie-accept-btn {
    white-space: nowrap;
    background-color: var(--color-primary);
    color: #fff;
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-sm);
    border: none;
    cursor: pointer;
}


@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--transition-slow), transform 0.8s var(--transition-slow);
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}


@media (max-width: 1200px) {
    .hero-image-container {
        position: relative;
        width: 100%;
        max-width: 600px;
        margin: 4rem auto 0;
        transform: none;
        top: auto;
    }

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

    .hero-content {
        max-width: 100%;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .final-cta-section .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-image-container {
        order: -1;
        margin-bottom: 3rem;
    }
}


@media (max-width: 992px) {
    :root {
        --container-padding: 1.5rem;
    }

    section {
        padding: 4rem 0;
    }

    .header-cta {
        display: none;
    }

    .tab-pane-content {
        grid-template-columns: 1fr;
    }

    .tab-details {
        margin-top: 2rem;
    }

    .steps-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }

    .steps-container::before {
        display: none;
    }
}


@media (max-width: 768px) {
    .main-nav {
        display: none;
    }

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

    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .final-cta-section .container {
        padding: 3rem;
    }

    .mini-reg-form {
        flex-direction: column;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}


@media (max-width: 576px) {
    :root {
        --container-padding: 1rem;
    }
    
    section {
        padding: 3rem 0;
    }

    .hero-section {
        padding: 4rem 0;
        min-height: auto;
    }

    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-column .logo {
        justify-content: center;
    }
}

.logo span,
.main-nav a,
h1, h2, h3, h4,
.cta-button,
.pillar-item h3,
.tab-link,
.step-item h3,
.testimonial-card .name,
.accordion-header span,
.footer-column h4 {
    letter-spacing: -0.02em;
}

body::-webkit-scrollbar {
    width: 12px;
}

body::-webkit-scrollbar-track {
    background: var(--color-background);
}

body::-webkit-scrollbar-thumb {
    background-color: var(--color-border);
    border-radius: 20px;
    border: 3px solid var(--color-background);
}

.hero-section,
.pillars-section,
.courses-section,
.how-it-works-section,
.testimonials-section,
.faq-section,
.final-cta-section {
    padding-top: clamp(3rem, 5vw, 6rem);
    padding-bottom: clamp(3rem, 5vw, 6rem);
}

.pillar-item,
.testimonial-card,
.accordion-item,
.mini-reg-form input {
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.mini-reg-form input:hover {
    border-color: var(--color-primary);
}

.cta-button:active {
    transform: translateY(0);
    box-shadow: none;
}

.logo .logo-icon path {
    transition: fill var(--transition-medium);
}

.pillar-item:hover svg {
    transform: scale(1.1);
    transition: transform var(--transition-fast);
}

.step-item:hover .step-icon {
    transform: scale(1.05) rotate(5deg);
    transition: transform var(--transition-medium);
}

.testimonial-card:hover {
    border-color: var(--color-border);
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.accordion-header:hover {
    color: var(--color-primary);
}

.footer-column.about .logo:hover,
.footer-column.about .logo:hover .logo-icon,
.footer-column.about .logo:hover span {
    color: var(--color-primary);
}

.footer-column address a {
    text-decoration: underline;
    text-decoration-style: dotted;
    text-decoration-color: var(--color-border);
}

.footer-column address a:hover {
    color: var(--color-primary);
    text-decoration-color: var(--color-primary);
}