/* Reset et variables CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ffffff;
    --secondary-color: #f8f9fa;
    --accent-color: #333333;
    --accent-light: #555555;
    --accent-dark: #1a1a1a;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #e9ecef;
    --shadow: 0 20px 40px rgba(51, 51, 51, 0.15);
    --shadow-hover: 0 30px 60px rgba(51, 51, 51, 0.25);
    --card-shadow: 0 25px 50px rgba(51, 51, 51, 0.3);
    --card-shadow-hover: 0 35px 70px rgba(51, 51, 51, 0.4);
    --border-radius: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--primary-color);
    overflow-x: hidden;
    padding-bottom: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Section principale */
.main-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: var(--primary-color);
    position: relative;
}

.card {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 50%, var(--accent-dark) 100%);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    padding: 60px 40px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    position: relative;
    margin: 0 auto;
    overflow: hidden;
    animation: cardAppear 0.8s ease-out;
    transition: transform 0.2s ease-out, box-shadow 0.3s ease;
    transform-style: preserve-3d;
    cursor: pointer;
    z-index: 10;
    will-change: transform;
}

.card:hover {
    box-shadow: var(--card-shadow-hover);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
                rgba(255, 255, 255, 0.2) 0%, 
                transparent 60%);
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 1;
}

@keyframes cardAppear {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Section profil */
.profile-section {
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
}

.profile-image-container {
    margin-bottom: 24px;
}

.profile-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    transition: var(--transition);
    position: relative;
    z-index: 5;
}

.name {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
    animation: slideInUp 0.6s ease-out 0.2s both;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.title {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    margin-bottom: 4px;
    animation: slideInUp 0.6s ease-out 0.3s both;
}

.subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    animation: slideInUp 0.6s ease-out 0.4s both;
}

.description {
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    max-width: 400px;
    margin: 0 auto;
    animation: slideInUp 0.6s ease-out 0.5s both;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Bouton Contacter */
.contact-button-container {
    animation: slideInUp 0.6s ease-out 0.6s both;
    position: relative;
    z-index: 2;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.contact-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.contact-button:hover::before {
    left: 0;
}

.contact-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.contact-button span,
.contact-button i {
    position: relative;
    z-index: 1;
}

.contact-button i {
    transition: var(--transition);
}

.contact-button:hover i {
    transform: translateX(4px);
}

/* Section compétences */
.skills-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #e9ecef 100%);
    position: relative;
}

.skills-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(180deg, 
        rgba(51, 51, 51, 0.05) 0%, 
        rgba(51, 51, 51, 0.02) 50%, 
        transparent 100%);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 70%);
}

.skills-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(0deg, 
        rgba(51, 51, 51, 0.02) 0%, 
        transparent 100%);
    clip-path: polygon(0 100%, 100% 100%, 100% 30%, 0 0);
}

.skills-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: var(--text-color);
    position: relative;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.skill-item {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light));
    transform: scaleX(0);
    transition: var(--transition);
}

.skill-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.skill-item:hover::before {
    transform: scaleX(1);
}

.skill-item i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    transition: var(--transition);
    display: block;
}

.skill-item:hover i {
    transform: scale(1.1);
}

.skill-item span {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition);
}

.skill-item:hover span {
    color: var(--accent-color);
}

/* Section projets */
.projects-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #e9ecef 0%, #f8f9fa 50%, #ffffff 100%);
    position: relative;
}

.projects-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(180deg, 
        rgba(51, 51, 51, 0.03) 0%, 
        rgba(51, 51, 51, 0.01) 50%, 
        transparent 100%);
    clip-path: polygon(0 30%, 100% 0, 100% 100%, 0 100%);
}

.projects-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(0deg, 
        rgba(51, 51, 51, 0.015) 0%, 
        transparent 100%);
    clip-path: polygon(0 100%, 100% 100%, 100% 60%, 0 40%);
}

.projects-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-color);
}

.projects-hint {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 60px;
    font-style: italic;
}

.projects-hint i {
    margin-right: 8px;
    color: var(--accent-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.project-card-flip {
    perspective: 1000px;
    height: 400px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.project-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: left;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    transform-origin: center center;
}

.project-card-flip.flipped .project-card-inner {
    transform: rotateY(180deg);
}

.project-card-front,
.project-card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: white;
    border: 1px solid var(--border-color);
}

.project-card-back {
    transform: rotateY(180deg);
    background: white;
    color: var(--text-color);
    top: 0;
    left: 0;
}

.project-card-back h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
}

.project-details {
    height: calc(100% - 80px);
    overflow-y: auto;
    padding-right: 10px;
}

.project-details p {
    margin-bottom: 15px;
    line-height: 1.6;
    color: var(--text-light);
}

.project-details::-webkit-scrollbar {
    width: 6px;
}

.project-details::-webkit-scrollbar-track {
    background: var(--border-color);
    border-radius: 3px;
}

.project-details::-webkit-scrollbar-thumb {
    background: var(--accent-light);
    border-radius: 3px;
}

.project-details::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

.detail-item {
    background: var(--secondary-color);
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 15px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.detail-item:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.detail-item:hover h4 {
    color: white;
}

.detail-item:hover p {
    color: rgba(255, 255, 255, 0.9);
}

.detail-item h4 {
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    transition: var(--transition);
}

.detail-item p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin: 0;
    transition: var(--transition);
}

.project-card-front {
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.project-card-front::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 107, 107, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(78, 205, 196, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(69, 183, 209, 0.1) 0%, transparent 50%);
    border-radius: 24px;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 2;
    transform: translateY(10px);
}

.project-card-flip:not(.flipped):hover .project-card-front::after {
    opacity: 1;
    transform: translateY(0);
}

.project-card-front::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 107, 107, 0.07) 0%, 
        rgba(78, 205, 196, 0.07) 25%, 
        rgba(69, 183, 209, 0.07) 50%, 
        rgba(150, 206, 180, 0.07) 75%, 
        rgba(254, 202, 87, 0.07) 100%);
    border-radius: 24px;
    opacity: 1;
    transition: none;
    z-index: 1;
    transform: none;
}

.project-card-flip:not(.flipped):hover .project-card-front::before {
    opacity: 1;
    transform: none;
}

.project-card-flip {
    height: 400px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateY(0) scale(1);
    transform-style: preserve-3d;
    perspective: 1000px;
    position: relative;
}

.project-card-flip.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .project-card-flip {
        height: 350px;
    }

    .project-card-front,
    .project-card-back {
        padding: 20px;
    }

    .project-card-back h3 {
        font-size: 1.3rem;
    }

    .detail-item {
        padding: 12px;
    }

    .detail-item h4 {
        font-size: 1rem;
    }

    .detail-item p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .project-card-flip {
        height: 320px;
    }

    .project-card-front,
    .project-card-back {
        padding: 15px;
    }

    .project-card-back h3 {
        font-size: 1.2rem;
    }

    .project-details {
        height: calc(100% - 70px);
    }

    .detail-item {
        padding: 10px;
        margin-bottom: 10px;
    }
}

.project-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.project-header i {
    font-size: 2rem;
    color: var(--accent-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateY(0) scale(1);
    position: relative;
}

.project-header i::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
}

.project-card-flip:hover .project-header i {
    transform: translateY(-3px);
    color: #ff6b6b;
}

.project-card-flip:hover .project-header i::after {
    width: 60px;
    height: 60px;
    opacity: 1;
}

.project-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateY(0);
    position: relative;
}

.project-header h3::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card-flip:hover .project-header h3 {
    transform: translateY(-2px);
}

.project-card-flip:hover .project-header h3::before {
    opacity: 1;
}

.project-card-front p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 25px;
    transition: var(--transition);
}

.project-card-flip:hover .project-card-front p {
    color: var(--text-color);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.project-tech span {
    background: var(--accent-color);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateY(0);
    position: relative;
    overflow: hidden;
}

.project-tech span::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.project-card-flip:hover .project-tech span {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.project-card-flip:hover .project-tech span::before {
    left: 100%;
}

.project-card-flip:hover .project-tech span:nth-child(1) { 
    transition-delay: 0s; 
    transform: translateY(-2px) translateX(-2px);
}
.project-card-flip:hover .project-tech span:nth-child(2) { 
    transition-delay: 0.05s; 
    transform: translateY(-2px) translateX(2px);
}
.project-card-flip:hover .project-tech span:nth-child(3) { 
    transition-delay: 0.1s; 
    transform: translateY(-2px) translateX(-1px);
}
.project-card-flip:hover .project-tech span:nth-child(4) { 
    transition-delay: 0.15s; 
    transform: translateY(-2px) translateX(1px);
}

.project-tech span:nth-child(odd) {
    background: var(--accent-light);
}

.project-tech span:nth-child(even) {
    background: var(--accent-color);
}

/* Section formation */
.education-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f1f3f4 50%, #e8eaed 100%);
    position: relative;
}

.education-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(180deg, 
        rgba(51, 51, 51, 0.04) 0%, 
        rgba(51, 51, 51, 0.015) 50%, 
        transparent 100%);
    clip-path: polygon(0 0, 100% 0, 100% 80%, 0 100%);
}

.education-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(0deg, 
        rgba(51, 51, 51, 0.025) 0%, 
        transparent 100%);
    clip-path: polygon(0 100%, 100% 100%, 100% 50%, 0 20%);
}

.education-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: var(--text-color);
}

.education-card {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.education-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 10px;
}

.period {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 8px;
}

.diploma {
    color: var(--text-light);
    margin-bottom: 20px;
}

.specialty {
    color: var(--text-color);
    margin-bottom: 30px;
}

.rncp-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.rncp-link:hover {
    color: var(--accent-dark);
}

.education-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.education-category {
    background: var(--secondary-color);
    padding: 20px;
    border-radius: 16px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.education-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.education-category h4 {
    color: var(--accent-color);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.education-category p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Section Contact */
.contact-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #e8eaed 0%, #f1f3f4 50%, #ffffff 100%);
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(180deg, 
        rgba(51, 51, 51, 0.02) 0%, 
        rgba(51, 51, 51, 0.005) 50%, 
        transparent 100%);
    clip-path: polygon(0 20%, 100% 0, 100% 100%, 0 90%);
}

.contact-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(0deg, 
        rgba(51, 51, 51, 0.01) 0%, 
        transparent 100%);
    clip-path: polygon(0 100%, 100% 100%, 100% 70%, 0 50%);
}

.contact-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: var(--text-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.contact-item {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    text-align: center;
}

.contact-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.contact-item:hover .contact-icon {
    transform: scale(1.1);
}

.contact-icon i {
    font-size: 2rem;
    color: white;
}

.contact-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 10px;
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.contact-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--accent-dark);
}

@media (max-width: 768px) {
    .card {
        padding: 40px 20px;
    }

    .name {
        font-size: 2rem;
    }

    .contact-button {
        padding: 14px 28px;
    }

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

    .education-details {
        grid-template-columns: 1fr;
    }

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

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

    .legal-content p {
        margin-bottom: 10px;
    }
}

@media (max-width: 480px) {
    .card {
        padding: 30px 15px;
    }

    .name {
        font-size: 1.8rem;
    }

    .title {
        font-size: 1rem;
    }

    .description {
        font-size: 0.9rem;
    }

    .contact-button {
        padding: 12px 24px;
        font-size: 1rem;
    }

    .project-card {
        padding: 20px;
    }

    .education-card {
        padding: 25px;
    }

    .contact-item {
        padding: 20px;
    }
}

.project-card,
.education-card,
.contact-item,
.skill-item,
.project-card-flip {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.project-card.visible,
.education-card.visible,
.contact-item.visible,
.skill-item.visible,
.project-card-flip.visible {
    opacity: 1;
    transform: translateY(0);
}

html {
    scroll-behavior: smooth;
}

.flip-card {
    perspective: 1000px;
    height: 400px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: left;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: white;
    border: 1px solid var(--border-color);
}

.flip-card-back {
    transform: rotateY(180deg);
    background: var(--accent-color);
    color: white;
}

.flip-card-back h3 {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.project-details {
    height: calc(100% - 80px);
    overflow-y: auto;
    padding-right: 10px;
}

.detail-section h4 {
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.detail-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.detail-section ul {
    list-style: none;
    padding: 0;
}

.detail-section li {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.detail-section li::before {
    content: '•';
    color: var(--accent-light);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.tech-grid span {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.flip-card.flipped:hover {
    transform: translateY(-8px) rotateY(180deg);
    box-shadow: var(--shadow-hover);
}

.legal-footer {
    background: transparent;
    color: var(--text-color);
    padding: 30px 0;
    text-align: center;
    margin-top: 40px;
}

.update-date {
    font-size: 0.8rem;
    opacity: 0.6;
    margin-bottom: 8px;
}

.copyright {
    font-size: 0.8rem;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .update-date {
        font-size: 0.75rem;
    }

    .copyright {
        font-size: 0.75rem;
    }
}

.about-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #e9ecef 0%, #f8f9fa 50%, #ffffff 100%);
    position: relative;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(180deg, 
        rgba(51, 51, 51, 0.03) 0%, 
        rgba(51, 51, 51, 0.01) 50%, 
        transparent 100%);
    clip-path: polygon(0 40%, 100% 0, 100% 100%, 0 80%);
}

.about-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(0deg, 
        rgba(51, 51, 51, 0.02) 0%, 
        transparent 100%);
    clip-path: polygon(0 100%, 100% 100%, 100% 40%, 0 60%);
}

.about-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: var(--text-color);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 25px;
    text-align: justify;
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-content p:first-child {
    font-weight: 400;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .about-section {
        padding: 60px 0;
    }

    .about-section h2 {
        font-size: 2rem;
        margin-bottom: 40px;
    }

    .about-content p {
        font-size: 1rem;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .about-section h2 {
        font-size: 1.8rem;
    }

    .about-content p {
        font-size: 0.95rem;
    }
}

@keyframes icon-rotate {
  0% { 
    transform: rotate(0deg) scale(1); 
  }
  100% { 
    transform: rotate(360deg) scale(1.1); 
  }
}

.icon-rotate {
  animation: icon-rotate 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}