/* --- VARIABLES --- */
:root {
    /* Couleurs principales */
    --main-color: #222222;      /* Noir anthracite */
    --accent-color: #3d4b8d;    /* Bleu principal */
    --accent-color-light: #4e5ca0; /* Version plus claire du bleu principal */
    --accent-color-dark: #32407a; /* Version plus foncée du bleu principal */
    --light-color: #f8f9fa;     /* Fond clair */
    --dark-color: #222222;      /* Noir anthracite */
    --text-color: #333333;      /* Couleur de texte principale */
    --text-light: #666666;      /* Couleur de texte secondaire */
    --white: #ffffff;
    --success: #28a745;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    
    /* Typographie */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Espacement */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    /* Effets */
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --border-radius-sm: 5px;
    --border-radius: 10px;
    --border-radius-lg: 20px;
    
    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --header-height-scrolled: 70px;
}

/* --- RESET & BASE --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    width: 100%;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
	width: 100%;
    -webkit-overflow-scrolling: touch;
    margin: 0;
    padding: 0;
    position: relative;
    box-sizing: border-box;	
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark-color);
    margin-bottom: var(--spacing-sm);
}

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

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

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

ul {
    list-style-type: none;
}

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

/* --- UTILITIES --- */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-padding {
    padding: var(--spacing-xxl) 0;
}

.section-full {
    min-height: 100vh; /* Fallback pour les navigateurs desktop */
    min-height: calc(var(--vh, 1vh) * 100); /* Solution mobile */
    display: flex;
    align-items: center;
    position: relative;
}

.safari .section-full {
    height: 100vh; /* Utiliser height au lieu de min-height sur Safari */
}

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

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

.gradient-text {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-sm);
}

/* --- HEADER --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 0;
    transition: var(--transition);
}

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

header.scrolled .header-content {
    height: var(--header-height-scrolled);
}

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

.logo-img {
    height: 75px;
    transition: var(--transition);
}

header.scrolled .logo-img {
    height: 55px;
}

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

.nav-item {
    margin-left: var(--spacing-lg);
    font-weight: 500;
    position: relative;
    color: var(--dark-color);
    padding: 0.5rem 0;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    transition: var(--transition);
}

.nav-item:hover::after,
.nav-item.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--dark-color);
    border-radius: 3px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* --- BUTTONS --- */
.btn {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1.5;
}

.primary-btn {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(61, 75, 141, 0.3);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(61, 75, 141, 0.4);
    color: var(--white);
}

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

.secondary-btn:hover {
    background-color: rgba(61, 75, 141, 0.1);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-full {
    width: 100%;
}

/* --- HERO SECTION --- */
#hero {
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
    max-width: 550px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.hero-image {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.blob-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 100%;
}

.blob {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    animation: blob-animation 8s infinite alternate ease-in-out;
}

.hero-profile-img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 87%;
    height: 87%;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

@keyframes blob-animation {
    0% {
        transform: scale(1) translate(0, 0);
    }
    33% {
        transform: scale(1.05) translate(5px, 5px);
    }
    66% {
        transform: scale(0.95) translate(-5px, 5px);
    }
    100% {
        transform: scale(1) translate(0, 0);
    }
}

.hero-shapes .shape {
    position: absolute;
    z-index: 1;
    opacity: 0.5;
}

.hero-shapes .shape-1 {
    top: 20%;
    left: 10%;
    width: 60px;
    height: 60px;
    background-color: rgba(61, 75, 141, 0.1);
    border-radius: 50%;
    animation: float 6s infinite alternate ease-in-out;
}

.hero-shapes .shape-2 {
    bottom: 30%;
    right: 10%;
    width: 80px;
    height: 80px;
    background-color: rgba(61, 75, 141, 0.1);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: float 8s infinite alternate-reverse ease-in-out;
}

.hero-shapes .shape-3 {
    top: 60%;
    left: 15%;
    width: 40px;
    height: 40px;
    background-color: rgba(61, 75, 141, 0.1);
    border-radius: 30% 70% 30% 70% / 70% 30% 70% 30%;
    animation: float 7s infinite alternate ease-in-out;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
    100% {
        transform: translateY(0) rotate(0deg);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--accent-color);
    border-radius: 20px;
    position: relative;
    margin-bottom: var(--spacing-xs);
}

.wheel {
    width: 6px;
    height: 6px;
    background-color: var(--accent-color);
    border-radius: 50%;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

.arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.arrow span {
    display: block;
    width: 10px;
    height: 10px;
    border-bottom: 2px solid var(--accent-color);
    border-right: 2px solid var(--accent-color);
    transform: rotate(45deg);
    animation: arrow 2s infinite;
}

.arrow span:nth-child(2) {
    animation-delay: 0.2s;
}

@keyframes arrow {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

/* Wave Animation */
.wave-container {
    position: absolute;
    width: 100%;
    bottom: 0;
    left: 0;
    height: 150px;
    overflow: hidden;
    z-index: 2;
}

.waves {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 100%;
}

.parallax > use {
    animation: move-forever 25s cubic-bezier(.55,.5,.45,.5) infinite;
}

.parallax > use:nth-child(1) {
    animation-delay: -2s;
    animation-duration: 7s;
}
.parallax > use:nth-child(2) {
    animation-delay: -3s;
    animation-duration: 10s;
}
.parallax > use:nth-child(3) {
    animation-delay: -4s;
    animation-duration: 13s;
}
.parallax > use:nth-child(4) {
    animation-delay: -5s;
    animation-duration: 20s;
}

@keyframes move-forever {
    0% {
        transform: translate3d(-90px,0,0);
    }
    100% { 
        transform: translate3d(85px,0,0);
    }
}

/* --- SECTION HEADERS --- */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-subtitle {
    display: inline-block;
    font-size: 1rem;
    font-weight: 500;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
    position: relative;
    padding: 0 var(--spacing-sm);
}

.section-subtitle::before,
.section-subtitle::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 1px;
    background-color: var(--accent-color);
}

.section-subtitle::before {
    left: -35px;
}

.section-subtitle::after {
    right: -35px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    color: var(--text-light);
    font-size: 1.1rem;
}

/* --- ABOUT SECTION --- */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.image-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.profile-img {
    width: 100%;
    height: auto;
    transition: var(--transition);
}

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

.experience-badge {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow);
}

.experience-badge .number {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.experience-badge .text {
    font-size: 0.8rem;
}

.about-text h3 {
    margin-top: var(--spacing-md);
    font-size: 1.3rem;
}

.feature-list {
    margin: var(--spacing-sm) 0 var(--spacing-lg);
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.feature-list .icon {
    color: var(--success);
    margin-right: var(--spacing-sm);
    font-size: 1.2rem;
}

.highlight-text {
    font-weight: 500;
    font-size: 1.1rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border-left: 3px solid var(--accent-color);
    background-color: rgba(61, 75, 141, 0.05);
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

/* --- APPROACH SECTION --- */
.approach-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.approach-card {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.approach-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    transition: var(--transition);
}

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

.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(61, 75, 141, 0.1);
    color: var(--accent-color);
    font-size: 1.5rem;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
    transition: var(--transition);
}

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

.approach-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

/* --- PHILOSOPHY SECTION --- */
.philosophy-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-xl) 0;
    position: relative;
}

.quote-icon {
    font-size: 3rem;
    color: rgba(61, 75, 141, 0.1);
    margin-bottom: var(--spacing-sm);
}

.quote {
    font-size: 1.8rem;
    font-weight: 300;
    line-height: 1.5;
    margin: var(--spacing-lg) 0;
    position: relative;
    color: var(--dark-color);
}

.quote-line {
    width: 80px;
    height: 3px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    margin: var(--spacing-lg) auto 0;
}

.bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(var(--gray-200) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.3;
    z-index: -1;
}

/* --- CONTACT SECTION --- */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

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

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(61, 75, 141, 0.1);
    color: var(--accent-color);
    font-size: 1.2rem;
    border-radius: 50%;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.contact-details a {
    color: var(--text-color);
}

.contact-details a:hover {
    color: var(--accent-color);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--gray-100);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(61, 75, 141, 0.1);
    background-color: var(--white);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-response {
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    display: none;
}

.form-response.success {
    display: block;
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
    border-left: 4px solid #28a745;
}

.form-response.error {
    display: block;
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
    border-left: 4px solid #dc3545;
}

.form-group input.error,
.form-group textarea.error {
    border-color: #dc3545;
    background-color: rgba(220, 53, 69, 0.05);
}

.form-group input.error:focus,
.form-group textarea.error:focus {
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.consent-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.consent-checkbox input[type="checkbox"] {
    width: auto;
    margin-top: 5px;
}

.consent-checkbox label {
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 0;
    font-weight: 400;
}

/* --- FOOTER --- */
footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.footer-logo-img {
    height: 60px;
    filter: brightness(0) invert(1);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--gray-300);
    transition: var(--transition);
}

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

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.copyright {
    font-size: 0.9rem;
    color: var(--gray-300);
    margin-bottom: 0;
}


/* Competences */

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

.expertise-card {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

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

.expertise-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.expertise-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.expertise-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: var(--spacing-sm);
}

.expertise-tags span {
    background-color: rgba(61, 75, 141, 0.08);
    color: var(--accent-color);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
    transition: var(--transition);
}

.expertise-tags span:hover {
    background-color: var(--accent-color);
    color: var(--white);
}






/* Back to Top Button */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
}

#backToTop.visible {
    opacity: 1;
    visibility: visible;
}

#backToTop:hover {
    background-color: var(--accent-color-dark);
    transform: translateY(-3px);
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 1200px) {
    :root {
        --container-width: 960px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 992px) {
    :root {
        --container-width: 720px;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        margin-top: var(--spacing-lg);
        max-width: 400px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .about-image {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-info {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-links {
        margin: var(--spacing-md) 0;
    }
}

@media (max-width: 768px) {
    :root {
        --container-width: 540px;
        --header-height: 70px;
        --header-height-scrolled: 60px;
    }
    
    .section-padding {
        padding: var(--spacing-xl) 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .quote {
        font-size: 1.5rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: calc(var(--header-height) + var(--spacing-lg)) var(--spacing-lg) var(--spacing-lg);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 999;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-item {
        margin: 0 0 var(--spacing-md);
        width: 100%;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    :root {
        --container-width: 100%;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .approach-cards {
        grid-template-columns: 1fr;
    }
    
    .logo-img {
        height: 50px;
    }
    
    header.scrolled .logo-img {
        height: 40px;
    }
    
    #backToTop {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
}