/* ===== ROOT VARIABLES ===== */
:root {
    /* Colors */
    --primary-color: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #3385d6;
    --secondary-color: #ff6b35;
    --secondary-dark: #e55a2b;
    
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --white-color: #ffffff;
    --bg-color: #f8f9fa;
    --bg-dark: #e9ecef;
    
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0066cc 0%, #004d99 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #e55a2b 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0, 102, 204, 0.95) 0%, rgba(0, 77, 153, 0.95) 100%);
    
    /* Typography */
    --body-font: 'Poppins', sans-serif;
    --h1-font-size: 3rem;
    --h2-font-size: 2.5rem;
    --h3-font-size: 1.75rem;
    --h4-font-size: 1.25rem;
    --normal-font-size: 1rem;
    --small-font-size: 0.875rem;
    --smaller-font-size: 0.75rem;
    
    /* Font Weight */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Spacing */
    --header-height: 5rem;
    --section-padding: 5rem 0;
    
    /* Border Radius */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 1rem;
    --border-radius-lg: 1.5rem;
    --border-radius-xl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.20);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-tooltip: 10;
    --z-fixed: 100;
    --z-modal: 1000;
}

/* ===== RESPONSIVE TYPOGRAPHY ===== */
@media screen and (max-width: 968px) {
    :root {
        --h1-font-size: 2.25rem;
        --h2-font-size: 2rem;
        --h3-font-size: 1.5rem;
        --h4-font-size: 1.125rem;
    }
}

@media screen and (max-width: 576px) {
    :root {
        --h1-font-size: 1.875rem;
        --h2-font-size: 1.625rem;
        --h3-font-size: 1.25rem;
    }
}

/* ===== BASE ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    color: var(--text-color);
    background-color: var(--white-color);
    line-height: 1.6;
}

h1, h2, h3, h4 {
    color: var(--text-color);
    font-weight: var(--font-bold);
    line-height: 1.2;
}

ul {
    list-style: none;
}

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

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

button {
    border: none;
    outline: none;
    cursor: pointer;
    font-family: var(--body-font);
}

/* ===== REUSABLE CSS CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.section {
    padding: var(--section-padding);
}

.section__header {
    text-align: center;
    margin-bottom: 4rem;
}

.section__subtitle {
    display: inline-block;
    color: var(--primary-color);
    font-size: var(--small-font-size);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.section__title {
    font-size: var(--h2-font-size);
    color: var(--text-color);
    margin-bottom: 1rem;
}

.section__description {
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* ===== BUTTONS ===== */
.button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-md);
    font-weight: var(--font-semibold);
    font-size: var(--normal-font-size);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.button--primary {
    background: var(--gradient-primary);
    color: var(--white-color);
    box-shadow: var(--shadow-md);
}

.button--primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

.button--outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-light);
    padding: 0.75rem 1.5rem;
    font-size: var(--small-font-size);
}

.button--outline:hover {
    background: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
}

.button--full {
    width: 100%;
    justify-content: center;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white-color);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-extrabold);
    color: var(--primary-color);
}

.logo-location {
    font-size: 0.75rem;
    font-weight: var(--font-medium);
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav__list {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav__link {
    color: var(--text-color);
    font-weight: var(--font-medium);
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

.nav__link:hover::after,
.nav__link.active-link::after {
    width: 100%;
}

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

.nav__btns {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav__toggle,
.nav__close {
    display: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
}

/* ===== HOME SECTION ===== */
.home {
    padding-top: calc(var(--header-height) + 3rem);
    min-height: 100vh;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.home__container {
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
    gap: 3rem;
}

.home__data {
    animation: fadeInUp 1s ease;
}

.home__subtitle {
    display: block;
    color: var(--primary-color);
    font-size: var(--small-font-size);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.home__title {
    font-size: var(--h1-font-size);
    color: var(--text-color);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.home__description {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.home__buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

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

.stat__item {
    text-align: center;
    padding: 1.5rem;
    background: var(--white-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}

.stat__number {
    font-size: var(--h2-font-size);
    color: var(--primary-color);
    font-weight: var(--font-extrabold);
    margin-bottom: 0.25rem;
}

.stat__text {
    color: var(--text-light);
    font-size: var(--small-font-size);
}

.home__img {
    display: flex;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
}

.home__blob {
    width: 400px;
    height: 400px;
    background: var(--gradient-primary);
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
}

.home__blob i {
    font-size: 8rem;
    color: var(--white-color);
}

.home__scroll {
    text-align: center;
    margin-top: 3rem;
}

.home__scroll-button {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: var(--small-font-size);
    transition: color var(--transition-fast);
}

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

.home__scroll-button i {
    font-size: 1.5rem;
    animation: scrollDown 2s ease-in-out infinite;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--white-color);
}

.about__container {
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.about__img {
    position: relative;
    height: 500px;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about__img-overlay {
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
}

.about__img-overlay i {
    font-size: 8rem;
    color: var(--white-color);
    opacity: 0.9;
}

.about__title {
    font-size: var(--h3-font-size);
    margin-bottom: 1rem;
    color: var(--text-color);
}

.about__description {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.about__features {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

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

.feature__icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.2) 100%);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature__icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.feature__content h4 {
    font-size: var(--h4-font-size);
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.feature__content p {
    color: var(--text-light);
    font-size: var(--small-font-size);
}

/* ===== SERVICES SECTION ===== */
.services {
    background: var(--bg-color);
}

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

.service__card {
    position: relative;
    background: var(--white-color);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.service__card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.service__card--featured {
    background: var(--gradient-primary);
    color: var(--white-color);
}

.service__card--featured .service__title,
.service__card--featured .service__description,
.service__card--featured .service__features li,
.service__card--featured .service__button {
    color: var(--white-color);
}

.service__card--featured .service__icon {
    background: rgba(255, 255, 255, 0.2);
}

.service__card--featured .service__icon i {
    color: var(--white-color);
}

.service__badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--secondary-color);
    color: var(--white-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: var(--smaller-font-size);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
}

.service__icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.2) 100%);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service__icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.service__title {
    font-size: var(--h3-font-size);
    margin-bottom: 1rem;
}

.service__description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service__features {
    margin-bottom: 2rem;
}

.service__features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-light);
}

.service__features i {
    color: var(--success-color);
    font-size: 1rem;
}

.service__card--featured .service__features i {
    color: var(--white-color);
}

.service__button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: var(--font-semibold);
    transition: gap var(--transition-fast);
}

.service__button:hover {
    gap: 1rem;
}

/* ===== COURSES SECTION ===== */
.courses {
    background: var(--white-color);
}

.course__filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter__btn {
    padding: 0.75rem 1.5rem;
    background: var(--white-color);
    color: var(--text-color);
    border: 2px solid var(--bg-dark);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-medium);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

.course__card {
    background: var(--white-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    transition: all var(--transition-normal);
}

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

.course__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.course__icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.2) 100%);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.course__icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.course__tag {
    background: var(--primary-color);
    color: var(--white-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: var(--smaller-font-size);
    font-weight: var(--font-semibold);
}

.course__title {
    font-size: var(--h4-font-size);
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.course__description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: var(--small-font-size);
}

.course__info {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--bg-dark);
}

.course__info span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: var(--small-font-size);
}

.course__info i {
    color: var(--primary-color);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--bg-color);
}

.contact__container {
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact__title {
    font-size: var(--h3-font-size);
    margin-bottom: 1rem;
}

.contact__description {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact__cards {
    display: grid;
    gap: 1.5rem;
}

.contact__card {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}

.contact__card-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.2) 100%);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact__card-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact__card-data h4 {
    font-size: var(--h4-font-size);
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.contact__card-data p {
    color: var(--text-light);
    font-size: var(--small-font-size);
    line-height: 1.6;
}

.contact__social {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--white-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}

.contact__social h4 {
    font-size: var(--h4-font-size);
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

.social__link {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.2) 100%);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
    transition: all var(--transition-normal);
}

.social__link:hover {
    background: var(--gradient-primary);
    color: var(--white-color);
    transform: translateY(-3px);
}

/* ===== CONTACT FORM ===== */
.contact__form-container {
    background: var(--white-color);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.form__title {
    font-size: var(--h3-font-size);
    margin-bottom: 2rem;
    color: var(--text-color);
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form__label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: var(--font-medium);
    font-size: var(--small-font-size);
}

.form__input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--bg-dark);
    border-radius: var(--border-radius-sm);
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    color: var(--text-color);
    transition: border-color var(--transition-fast);
}

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

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.form__message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    text-align: center;
    font-weight: var(--font-medium);
    display: none;
}

.form__message.success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
    display: block;
}

.form__message.error {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    display: block;
}

/* ===== MAP ===== */
.contact__map {
    margin-top: 4rem;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--text-color);
    color: var(--white-color);
    padding: 4rem 0 2rem;
}

.footer__container {
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer__logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
    margin-bottom: 1rem;
}

.footer__logo .logo-text {
    color: var(--white-color);
}

.footer__description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

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

.footer__social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white-color);
    transition: all var(--transition-normal);
}

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

.footer__title {
    font-size: var(--h4-font-size);
    margin-bottom: 1.5rem;
}

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

.footer__link {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.footer__link:hover {
    color: var(--white-color);
    padding-left: 5px;
}

.footer__link i {
    margin-top: 3px;
    color: var(--primary-color);
}

.footer__bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__copy {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--small-font-size);
}

.footer__terms {
    display: flex;
    gap: 1rem;
    align-items: center;
    font-size: var(--small-font-size);
}

.footer__terms .footer__link {
    color: rgba(255, 255, 255, 0.7);
}

.footer__terms .footer__link:hover {
    padding-left: 0;
}

.footer__legal {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__legal p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--small-font-size);
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.footer__legal strong {
    color: var(--white-color);
    font-weight: var(--font-semibold);
}

.footer__bottom-content {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer__copy {
    line-height: 1.6;
}

/* ===== SCROLL UP BUTTON ===== */
.scrollup {
    position: fixed;
    right: 2rem;
    bottom: -30%;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white-color);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-md);
    z-index: var(--z-tooltip);
    transition: all var(--transition-normal);
}

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

.scrollup.show-scroll {
    bottom: 2rem;
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

/* ===== RESPONSIVE ===== */
@media screen and (max-width: 968px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--white-color);
        padding: 4rem 2rem 2rem;
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-normal);
        z-index: var(--z-fixed);
    }
    
    .nav__menu.show-menu {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav__close {
        display: block;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
    }
    
    .nav__toggle {
        display: block;
    }
    
    .nav__btns .button {
        display: none;
    }
    
    .home__container,
    .about__container,
    .services__container,
    .courses__container,
    .contact__container,
    .footer__container {
        grid-template-columns: 1fr;
    }
    
    .home__stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .stat__item {
        padding: 1rem;
    }
    
    .stat__number {
        font-size: 1.75rem;
    }
    
    .home__blob {
        width: 300px;
        height: 300px;
    }
    
    .home__blob i {
        font-size: 5rem;
    }
    
    .about__img {
        height: 350px;
    }
    
    .form__row {
        grid-template-columns: 1fr;
    }
    
    .footer__bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

@media screen and (max-width: 576px) {
    .container {
        padding: 0 1rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .home__buttons {
        flex-direction: column;
    }
    
    .home__stats {
        grid-template-columns: 1fr;
    }
    
    .home__blob {
        width: 250px;
        height: 250px;
    }
    
    .home__blob i {
        font-size: 4rem;
    }
    
    .service__card {
        padding: 1.5rem;
    }
    
    .course__filters {
        gap: 0.5rem;
    }
    
    .filter__btn {
        padding: 0.5rem 1rem;
        font-size: var(--small-font-size);
    }
    
    .footer__container {
        gap: 2rem;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer__bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .scrollup {
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}