:root {
    --primary: #00c9ff;
    --secondary: #92fe9d;
    --accent: #ff6b6b;
    --dark: #1a1a2e;
    --darker: #16213e;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --primary-gradient: linear-gradient(135deg, #00c9ff, #92fe9d);
    --secondary-gradient: linear-gradient(135deg, #ff6b6b, #ff8e53);
    --dark-gradient: linear-gradient(135deg, #1a1a2e, #16213e);
    --text-light: rgba(255, 255, 255, 0.9);
    --text-muted: rgba(255, 255, 255, 0.6);
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
}

/* Light mode */
[data-theme="light"] {
    --dark: #f8f9fa;
    --darker: #e9ecef;
    --glass-bg: rgba(0, 0, 0, 0.04);
    --glass-border: rgba(0, 0, 0, 0.08);
    --dark-gradient: linear-gradient(135deg, #f8f9fa, #e9ecef);
    --text-light: rgba(0, 0, 0, 0.87);
    --text-muted: rgba(0, 0, 0, 0.6);
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] body::before {
    background:
        radial-gradient(circle at 10% 20%, rgba(0, 201, 255, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(146, 254, 157, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 30% 60%, rgba(255, 107, 107, 0.05) 0%, transparent 30%);
}

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

html {
    min-height: 100%;
    overflow-y: auto;
}

html.skrollr-mobile,
html.skrollr-mobile body {
    overflow-y: auto !important;
    overflow-x: hidden !important;
}

body {
    font-family: 'Nunito Sans', sans-serif;
    background: var(--dark-gradient);
    color: var(--text-light);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 10% 20%, rgba(0, 201, 255, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(146, 254, 157, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 30% 60%, rgba(255, 107, 107, 0.1) 0%, transparent 30%);
    z-index: -1;
    pointer-events: none;
}

/* Glassmorphism effect */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
}

/* Sidebar styling */
.fixed-left {
    position: fixed;
    left: 2rem;
    top: 2rem;
    bottom: 2rem;
    width: 300px;
    padding: 2rem;
    z-index: 100;
    transition: var(--transition);

}

.fixed-left > *:not(.theme-toggle):not(.social-links) {
    flex-shrink: 0;
}

.fixed-left .nav {
    flex: 1;
    overflow-y: auto;
}

.social-links {
    margin-top: auto;
    flex-shrink: 0;
}

.name {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2rem;
    letter-spacing: 2px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 0.5rem;
    word-break: break-word;
    line-height: 1.2;
}

.fixed-left h2 {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-muted);
}

.fixed-left p {
    color: var(--text-muted);
    margin: 1.5rem 0;
    line-height: 1.6;
}

.nav-link {
    color: var(--text-light) !important;
    font-size: 1.1rem;
    padding: 0.5rem 0 !important;
    margin: 0.5rem 0;
    position: relative;
    transition: var(--transition);
    border-left: 3px solid transparent;
    padding-left: 1rem !important;
}

.nav-link:hover,
.nav-link.active {
    color: #fff !important;
    border-left: 3px solid #00c9ff;
}

[data-theme="light"] .nav-link:hover,
[data-theme="light"] .nav-link.active {
    color: #000 !important;
    border-left: 3px solid #00c9ff;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    margin-right: 1rem;
    transition: var(--transition);
}

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

/* Theme toggle button */
.theme-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--primary-gradient);
    transform: rotate(20deg) scale(1.1);
}

[data-theme="light"] .theme-toggle i::before {
    content: "\f185";
}

[data-theme="light"] .social-links a {
    color: #0066cc;
}

[data-theme="light"] .social-links a:hover {
    color: #fff;
}

[data-theme="light"] .tech-btn {
    background: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] a {
    color: #0066cc;
}

[data-theme="light"] a:hover {
    color: #0052a3;
}

/* Main content area */
.scroll-right {
    margin-left: 350px;
    padding: 2rem 3rem;
}

.mobile-intro {
    display: none;
}

/* Section styling */
section {
    margin-bottom: 3rem;
    padding: 2rem;
}

.section-title {
    position: relative;
    margin-bottom: 2rem;
    font-family: 'Titillium Web', sans-serif;
    font-weight: 700;
    letter-spacing: 1px;
    background: var(--secondary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary-gradient);
}

/* Experience cards */
.experience-card {
    margin-bottom: 1.5rem;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.experience-card.animate {
    opacity: 1;
    transform: translateY(0);
}

.experience-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.date {
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: block;
}

.technologies-used {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-btn {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* Staircase section */
.cards-container {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 40px;
    padding: 0 20px;
    margin-top: 2rem;
}

.feature-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    padding: 40px;
    border: none;
    display: flex;
    align-items: center;
    min-height: 250px;
    transition: var(--transition);
    z-index: 1;
    background-size: cover;
    background-position: center;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30, 30, 46, 0.7);
    backdrop-filter: blur(5px);
    z-index: -1;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.feature-card:nth-child(1) {
    margin-right: 80px;
    z-index: 4;
    background-image: url('https://images.unsplash.com/photo-1555066931-4365d14bab8c?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80');
}

.feature-card:nth-child(2) {
    margin-left: 80px;
    margin-right: 40px;
    z-index: 3;
    background-image: url('https://images.unsplash.com/photo-1547658719-da2b51169166?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');
}

.feature-card:nth-child(3) {
    margin-left: 40px;
    margin-right: 80px;
    z-index: 2;
    background-image: url('https://images.unsplash.com/photo-1517245386807-bb43f82c33c4?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80');
}

.feature-card:nth-child(4) {
    margin-left: 80px;
    z-index: 1;
    background-image: url('https://images.unsplash.com/photo-1516321318423-f06f85e504b3?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80');
}

.side-circle {
    position: absolute;
    top: -30px;
    left: -30px;
    font-size: 6rem;
    font-weight: 800;
    width: 120px;
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    z-index: 10;
    font-family: 'Bebas Neue', sans-serif;
}

.feature-card:nth-child(1) .side-circle {
    background: linear-gradient(135deg, transparent, transparent),
        linear-gradient(135deg, #ff6b6b, #ff8e53, #00c9ff) border-box;
    border: 4px solid transparent;
    -webkit-mask:
        linear-gradient(#fff 0 0) padding-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    color: #ff6b6b;
}

.feature-card:nth-child(2) .side-circle {
    background: linear-gradient(135deg, transparent, transparent),
        linear-gradient(135deg, #00c9ff, #92fe9d) border-box;
    border: 4px solid transparent;
    -webkit-mask:
        linear-gradient(#fff 0 0) padding-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    color: #00c9ff;
}

.feature-card:nth-child(3) .side-circle {
    background: linear-gradient(135deg, transparent, transparent),
        linear-gradient(135deg, #ff6b6b, #ff8e53) border-box;
    border: 4px solid transparent;
    -webkit-mask:
        linear-gradient(#fff 0 0) padding-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    color: #ff8e53;
}

.feature-card:nth-child(4) .side-circle {
    background: linear-gradient(135deg, transparent, transparent),
        linear-gradient(135deg, #92fe9d, #00c9ff) border-box;
    border: 4px solid transparent;
    -webkit-mask:
        linear-gradient(#fff 0 0) padding-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    color: #92fe9d;
}

.feature-content {
    max-width: 600px;
    margin-left: 100px;
}

.feature-card h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
    font-family: 'Titillium Web', sans-serif;
}

.feature-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-muted);
}

[data-theme="light"] .feature-card::before {
    background: rgba(248, 249, 250, 0.85) !important;
}

[data-theme="light"] .feature-card h2 {
    color: #000;
}

[data-theme="light"] .feature-card p {
    color: #333;
}

/* Projects section */
.coming-soon {
    position: relative;
    padding: 3rem;
    text-align: center;
    border-radius: 16px;
    overflow: hidden;
    margin: 2rem 0;
}

.coming-soon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 26, 46, 0.5);
    backdrop-filter: blur(10px);
    z-index: -1;
}

.coming-soon h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.form-container {
    display: flex;
    max-width: 500px;
    margin: 2rem auto;
}

.form-container input {
    flex: 1;
    padding: 0.8rem 1.2rem;
    border: none;
    border-radius: 30px 0 0 30px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.form-container button {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 0 30px 30px 0;
    background: var(--primary-gradient);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.form-container button:hover {
    opacity: 0.9;
    transform: scale(1.05);
}

/* Pricing Section */
#pricing {
    background: transparent;
}

.pricing-card {
    background: rgba(26, 26, 46, 0.6);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.pricing-card.animate {
    opacity: 1;
    transform: translateY(0);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.pricing-card.featured {
    border: 2px solid var(--primary);
    transform: scale(1.05);
    z-index: 2;
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.price-tag {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.pricing-features {
    padding: 0;
    margin: 0 0 1.5rem;
    list-style: none;
}

.pricing-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    display: flex;
    align-items: center;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li i {
    margin-right: 10px;
    color: var(--secondary);
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 0.8rem;
    text-align: center;
    background: var(--primary-gradient);
    color: white;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
}

.pricing-btn:hover {
    background: var(--secondary-gradient);
    transform: translateY(-3px);
}

.icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.about-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer a {
    color: #00c9ff;
    text-decoration: none;
}

/* Menu hamburger */
.menu-toggle {
    display: none;
    position: fixed;
    top: 1.5rem;
    left: 1.5rem;
    width: 46px;
    height: 46px;
    padding: 0;
    z-index: 1001;
    background: var(--primary-gradient);
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 50%;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.menu-toggle:hover {
    transform: translateY(-2px);
}

.menu-toggle.active {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.85);
}

.menu-close {
    display: none;
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.14);
    color: var(--text-light);
    font-size: 1.3rem;
    cursor: pointer;
    transition: var(--transition);
}

.menu-close:hover {
    background: var(--secondary-gradient);
    color: #fff;
}

/* Menu backdrop for mobile */
.menu-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.menu-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

/* Responsive design */
@media (max-width: 1200px) {
    .fixed-left {
        width: 250px;
    }

    .scroll-right {
        margin-left: 280px;
    }

    .menu-toggle {
        display: none;
    }
}

/* Tablette (768px à 992px) */
@media (max-width: 992px) {
    .fixed-left {
        position: fixed;
        left: 0;
        top: 0;
        width: 200px;
        bottom: auto;
        height: 100vh;
        padding: 1.5rem;
        overflow-y: auto;
        z-index: 100;
    }

    .scroll-right {
        margin-left: 220px;
        overflow: auto;
        padding: 2rem 1.5rem;
    }

    .name {
        font-size: 1.8rem;
    }

    .fixed-left h2 {
        font-size: 1.1rem;
    }

    .fixed-left p {
        font-size: 0.9rem;
    }

    .feature-card {
        margin-left: 20px !important;
        margin-right: 20px !important;
    }

    .side-circle {
        left: 20px;
        top: -20px;
        font-size: 4rem;
        width: 80px;
        height: 80px;
    }

    .feature-content {
        margin-left: 80px;
    }
}

/* Mobile (max 768px) */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .menu-backdrop {
        display: block;
    }

    .fixed-left {
        position: fixed;
        left: -100vw;
        top: 0;
        width: 100vw;
        height: 100vh;
        bottom: auto;
        padding: 1.5rem;
        overflow-y: auto;
        transition: left 0.3s ease;
        z-index: 1000;
    }

    .fixed-left.active {
        left: 0;
    }

    .fixed-left.active .menu-close {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .scroll-right {
        margin-left: 0;
        min-height: 100vh;
        max-width: 100vw;
        overflow: visible;
        padding: 5rem 1.5rem 1.5rem;
    }

    .mobile-intro {
        display: block;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        margin-bottom: 1.5rem;
        padding: 1.5rem;
    }

    .mobile-intro .intro-kicker {
        margin-bottom: 0.4rem;
        color: var(--secondary);
        font-family: 'Titillium Web', sans-serif;
        font-size: 0.85rem;
        font-weight: 700;
        letter-spacing: 1px;
        text-transform: uppercase;
    }

    .mobile-intro h2 {
        margin-bottom: 1rem;
        color: var(--text-light);
        font-size: 1.25rem;
        font-weight: 400;
    }

    .mobile-intro p:not(.intro-kicker) {
        margin-bottom: 1.25rem;
        color: var(--text-muted);
        line-height: 1.6;
        overflow-wrap: anywhere;
    }

    .mobile-intro-links {
        display: flex;
        gap: 0.75rem;
    }

    .mobile-intro-links a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.12);
        color: var(--text-light);
        text-decoration: none;
        transition: var(--transition);
    }

    .mobile-intro-links a:hover {
        background: var(--primary-gradient);
        color: #fff;
    }

    .name {
        font-size: 1.5rem;
    }

    .fixed-left h2 {
        font-size: 1rem;
    }

    .fixed-left p {
        font-size: 0.85rem;
    }

    .feature-card {
        padding: 30px;
        margin-left: 20px !important;
        margin-right: 20px !important;
    }

    .feature-card h2 {
        font-size: 1.5rem;
    }

    .side-circle {
        position: relative;
        top: 0;
        left: 0;
        margin-bottom: 20px;
    }

    .feature-content {
        margin-left: 0;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

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

@media (max-width: 576px) {

    .fixed-left {
        padding: 1.5rem;
    }

    .scroll-right {
        padding: 5rem 1.5rem 1.5rem;
    }

    .name {
        font-size: 2.5rem;
    }

    .coming-soon {
        padding: 1.5rem;
    }

    .coming-soon h1 {
        font-size: 2rem;
    }

    .form-container {
        flex-direction: column;
    }

    .form-container input {
        border-radius: 30px;
        margin-bottom: 10px;
    }

    .form-container button {
        border-radius: 30px;
    }

    .social-links a{
        margin: 10px;
    }
}

@media (max-width: 390px) {
    html,
    body {
        width: 100%;
        max-width: 100%;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
    }

    .fixed-left {
        bottom: auto;
        width: 100vw;
        max-width: 100vw;
    }

    .scroll-right {
        width: 100vw;
        max-width: 100vw;
    }

    .fixed-left,
    .scroll-right,
    section {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .fixed-left p,
    .feature-card p,
    .experience-card p {
        overflow-wrap: anywhere;
    }
}