/* ==========================================================================
   Аристотель - Стили сайта
   ========================================================================== */

/* Основные переменные - Дизайн Tilda */
:root {
    --color-primary: #ff8562;
    --color-primary-dark: #e66d4d;
    --color-secondary: #153254;
    --color-accent: #ff8562;
    --color-success: #10B981;
    --color-danger: #EF4444;
    
    --color-text-primary: #000000;
    --color-text-secondary: #000000;
    --color-text-light: #666666;
    
    --color-bg: #faf7f2;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #f5f2ed;
    
    --color-border: #e0ddd8;
    
    --font-family: 'Manrope', Arial, sans-serif;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

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

body {
    font-family: var(--font-family);
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-bg-secondary);
    backdrop-filter: none;
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 0;
}

.nav__logo a {
    display: flex;
    flex-direction: column;
    font-weight: 700;
}

.logo {
    font-size: 1.5rem;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.nav__toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-text-primary);
    transition: var(--transition);
}

.nav__menu {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav__list {
    display: flex;
    gap: 2rem;
}

.nav__link {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 0;
    transition: var(--transition);
    white-space: nowrap;
    font-family: var(--font-family);
}

.btn--primary {
    background: var(--color-primary);
    color: white;
    border: 2px solid var(--color-primary);
}

.btn--primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 133, 98, 0.3);
}

.btn--secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-text-primary);
}

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

.btn--outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

.btn--outline:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-text-primary);
}

.btn--large {
    padding: 1rem 2.5rem;
    font-size: 1.05rem;
}

/* Hero Section */
.hero {
    padding: 10rem 0 6rem;
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.highlight {
    background: linear-gradient(90deg, #FBBF24, #F59E0B);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero__stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card {
    text-align: center;
    padding: 1.5rem;
    background: white;
    backdrop-filter: none;
    border-radius: 0;
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.stat-card__value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.stat-card__label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.hero__cta {
    display: flex;
    gap: 1rem;
}

.visual-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem;
}

.visual-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    backdrop-filter: none;
    border-radius: 0;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.visual-card:nth-child(1) { animation-delay: 0s; }
.visual-card:nth-child(2) { animation-delay: 0.5s; }
.visual-card:nth-child(3) { animation-delay: 1s; }

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

.visual-card:hover {
    background: var(--color-bg-tertiary);
    transform: scale(1.05);
}

.icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    background: var(--color-secondary);
    color: white;
    border-radius: 0;
}

/* Features Preview */
.features-preview {
    padding: 4rem 0;
    background: var(--color-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.feature-card__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.feature-card__text {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Section Styling */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
}

/* About Section */
.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.about__text h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.about__text p {
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.tech-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tech-item {
    padding: 1rem;
    background: white;
    border-radius: 0;
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
}

.tech-item strong {
    color: var(--color-primary);
}

.architecture-diagram {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 0;
    border: 1px solid var(--color-border);
}

.arch-layer {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.arch-block {
    flex: 1;
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--color-secondary);
    border-radius: 0;
    text-align: center;
    font-weight: 600;
    color: var(--color-secondary);
}

.principles {
    margin-top: 4rem;
}

.principles__title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
}

.principles__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.principle-card {
    padding: 2rem;
    background: white;
    border-radius: 0;
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
}

.principle-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.principle-card p {
    color: var(--color-text-secondary);
}

/* Subjects Section */
.subjects {
    background: var(--color-bg);
}

.subjects__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.subject-card {
    padding: 2.5rem;
    background: white;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.subject-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.subject-card__icon {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
}

.subject-card--math .subject-card__icon { color: var(--color-secondary); }
.subject-card--physics .subject-card__icon { color: var(--color-secondary); }
.subject-card--cs .subject-card__icon { color: var(--color-secondary); }

.subject-card__title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.subject-card__description {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.subject-card__features {
    list-style: disc;
    padding-left: 1.5rem;
}

.subject-card__features li {
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

/* For Students Section */
.interface-demo {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    align-items: start;
}

.screen-mockup {
    background: #1F2937;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
}

.screen-mockup__panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.panel {
    background: #374151;
    border-radius: 0.5rem;
    overflow: hidden;
}

.panel__header {
    padding: 0.75rem 1rem;
    background: #4B5563;
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
}

.panel__content {
    padding: 1rem;
    color: #D1D5DB;
    font-size: 0.85rem;
    min-height: 100px;
}

.panel code {
    font-family: 'Monaco', 'Courier New', monospace;
    display: block;
    color: #10B981;
}

.chat-message--ai {
    background: #4F46E5;
    padding: 0.75rem;
    border-radius: 0.5rem;
    color: white;
}

.demo-feature {
    padding: 1.5rem;
    background: white;
    border-radius: 0;
    margin-bottom: 1rem;
    border: 1px solid var(--color-border);
}

.demo-feature h4 {
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.demo-feature p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* For Teachers Section */
.for-teachers {
    background: var(--color-bg-secondary);
}

.teacher-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tool-card {
    padding: 2rem;
    background: white;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.tool-card__icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.tool-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.tool-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Benefits Section */
.benefits__content {
    display: grid;
    gap: 4rem;
}

.benefit-main {
    text-align: center;
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
}

.research-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.research-card {
    padding: 2rem;
    background: var(--color-secondary);
    color: white;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.research-card__label {
    font-size: 0.85rem;
    opacity: 0.9;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.research-card__value {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.research-card__description {
    font-size: 0.95rem;
    opacity: 0.95;
    line-height: 1.6;
}

.benefits__list {
    display: grid;
    gap: 2rem;
}

.benefit-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 0;
    border: 1px solid var(--color-border);
}

.benefit-item__icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.benefit-item__content h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.benefit-item__content p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Team Section */
.team {
    background: var(--color-bg);
}

.team__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.team-card {
    padding: 2.5rem;
    background: white;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    text-align: center;
    border: 1px solid var(--color-border);
}

.team-card__avatar {
    margin: 0 auto 1.5rem;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--color-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-placeholder {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
}

.team-card__name {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.team-card__role {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.team-card__bio {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.team-card__links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.team-card__links a {
    color: var(--color-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.team-card__links a:hover {
    text-decoration: underline;
}

.company-info {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem;
    background: white;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--color-border);
}

.company-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
}

.company-info p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.company-info strong {
    color: var(--color-primary);
}

/* Resources Section */
.resources__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.resource-card {
    padding: 2rem;
    background: white;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.resource-card__category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: white;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.resource-card__title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.resource-card__excerpt {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.resource-card__link {
    color: var(--color-primary);
    font-weight: 600;
    transition: var(--transition);
}

.resource-card__link:hover {
    text-decoration: underline;
}

/* FAQ */
.faq {
    max-width: 800px;
    margin: 0 auto;
}

.faq__title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.faq__item {
    border-bottom: 1px solid var(--color-border);
}

.faq__question {
    width: 100%;
    padding: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    text-align: left;
    transition: var(--transition);
}

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

.faq__icon {
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: var(--transition);
}

.faq__item.active .faq__icon {
    transform: rotate(45deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq__item.active .faq__answer {
    max-height: 500px;
}

.faq__answer p {
    padding: 0 0 1.5rem 0;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

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

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
}

.contact-item__icon {
    font-size: 1.5rem;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.contact-item a {
    display: block;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
    transition: var(--transition);
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}

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

/* Form */
.contact__form {
    background: white;
    padding: 2.5rem;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--color-border);
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    font-family: var(--font-family);
}

.form__input,
.form__textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: 0;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form__textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: #1F2937;
    color: #D1D5DB;
    padding: 4rem 0 2rem;
}

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

.footer__title {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer__text {
    line-height: 1.6;
    opacity: 0.9;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__links a {
    color: #D1D5DB;
    transition: var(--transition);
}

.footer__links a:hover {
    color: white;
}

.footer__bottom {
    padding-top: 2rem;
    border-top: 1px solid #374151;
    text-align: center;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .about__content {
        grid-template-columns: 1fr;
    }
    
    .interface-demo {
        grid-template-columns: 1fr;
    }
    
    .contact__content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav__toggle {
        display: flex;
    }
    
    .nav__menu {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        align-items: stretch;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: var(--transition);
    }
    
    .nav__menu.active {
        transform: translateY(0);
    }
    
    .nav__list {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav__actions {
        flex-direction: column;
    }
    
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__stats {
        flex-direction: column;
    }
    
    .hero__cta {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .screen-mockup__panels {
        grid-template-columns: 1fr;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}