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

:root {
    --primary-dark: #1a365d;
    --primary-blue: #2a4d8e;
    --primary-light: #4299e1;
    --accent-green: #38b2ac;
    --accent-orange: #ed8936;
    --gray-dark: #2d3748;
    --gray-medium: #718096;
    --gray-light: #e2e8f0;
    --white: #ffffff;
    --black: #000000;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--gray-dark);
    background-color: var(--white);
}

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

/* Navigation */
.navbar {
    background: var(--primary-dark);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h2 {
    color: var(--white);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.brand-icon {
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.brand-icon i {
    font-size: 0.9rem;
    color: var(--white);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.nav-link:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--white);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--accent-green);
    color: var(--white);
}

.btn-primary:hover {
    background: #2c9a94;
    transform: translateY(-2px);
}

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

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

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-shield {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.security-shield i {
    font-size: 6rem;
    color: var(--white);
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--gray-light);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-dark);
}

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

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.feature-card p {
    color: var(--gray-medium);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    margin: 0.35rem 0;
}

.footer a {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
}

.footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--primary-dark);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    .security-shield {
        width: 150px;
        height: 150px;
    }

    .security-shield i {
        font-size: 4rem;
    }

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

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* About Page Styles */
.about-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 140px 0 80px;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.lead {
    font-size: 1.25rem;
    opacity: 0.9;
    line-height: 1.6;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-placeholder {
    width: 250px;
    height: 250px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 3px solid rgba(255, 255, 255, 0.2);
}

.profile-placeholder i {
    font-size: 6rem;
    color: var(--white);
}

.about-details {
    padding: 80px 0;
    background: var(--white);
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.detail-card {
    background: var(--gray-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

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

.detail-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.detail-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.detail-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.detail-card p {
    color: var(--gray-medium);
    line-height: 1.6;
}

.values {
    padding: 80px 0;
    background: var(--gray-light);
}

.values h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-dark);
}

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

.value-item {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.value-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.value-item i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.value-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.value-item p {
    color: var(--gray-medium);
    line-height: 1.6;
}

.mission {
    padding: 80px 0;
    background: var(--white);
}

.mission-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.mission-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-dark);
}

.mission-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-medium);
    margin-bottom: 3rem;
}

.mission-highlights {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.highlight {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.highlight i {
    font-size: 2rem;
    color: var(--accent-green);
}

.highlight span {
    font-weight: 600;
    color: var(--primary-dark);
}

/* Responsive adjustments for About page */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .about-text h1 {
        font-size: 2.5rem;
    }

    .profile-placeholder {
        width: 200px;
        height: 200px;
    }

    .profile-placeholder i {
        font-size: 4rem;
    }

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

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

    .mission-highlights {
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .about-text h1 {
        font-size: 2rem;
    }

    .lead {
        font-size: 1.1rem;
    }

    .profile-placeholder {
        width: 150px;
        height: 150px;
    }

    .profile-placeholder i {
        font-size: 3rem;
    }

    .mission-highlights {
        flex-direction: column;
        gap: 1.5rem;
    }
}

/* Projects Page Styles */
.projects-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 140px 0 80px;
    text-align: center;
}

.projects-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.projects-hero .lead {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

.projects-showcase {
    padding: 80px 0;
    background: var(--gray-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.project-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.project-image {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-light) 100%);
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image i {
    font-size: 4rem;
    color: var(--white);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.project-category {
    color: var(--accent-green);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.project-description {
    color: var(--gray-medium);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-details {
    border-top: 1px solid var(--gray-light);
    padding-top: 1.5rem;
}

.project-details h4 {
    font-size: 1rem;
    color: var(--primary-dark);
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background: var(--primary-light);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-context p {
    color: var(--gray-medium);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-features ul {
    list-style: none;
    padding: 0;
}

.project-features li {
    color: var(--gray-medium);
    padding: 0.3rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.project-features li:before {
    content: "✓";
    color: var(--accent-green);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.projects-cta {
    padding: 80px 0;
    background: var(--white);
    text-align: center;
}

.projects-cta h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.projects-cta p {
    font-size: 1.1rem;
    color: var(--gray-medium);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive adjustments for Projects page */
@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .projects-hero h1 {
        font-size: 2.5rem;
    }

    .project-content {
        padding: 1.5rem;
    }

    .tech-tags {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .projects-hero h1 {
        font-size: 2rem;
    }

    .projects-hero .lead {
        font-size: 1.1rem;
    }

    .project-card {
        margin: 0 1rem;
    }

    .project-image {
        height: 150px;
    }

    .project-image i {
        font-size: 3rem;
    }
}

.info-list,
.detail-list,
.skill-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    text-align: left;
}

.info-list li,
.detail-list li,
.skill-list li {
    padding: 0.4rem 0 0.4rem 1.2rem;
    position: relative;
    color: var(--gray-medium);
}

.info-list li:before,
.detail-list li:before,
.skill-list li:before {
    content: "•";
    color: var(--accent-green);
    font-weight: 700;
    position: absolute;
    left: 0;
}

.page-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 140px 0 80px;
    text-align: center;
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.page-hero .lead {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

.services-section,
.skills-section,
.contact-section {
    padding: 80px 0;
    background: var(--gray-light);
}

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

.service-card,
.skill-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.service-card:hover,
.skill-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-icon,
.skill-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i,
.skill-icon i {
    font-size: 2rem;
    color: var(--white);
}

.service-card h3,
.skill-card h3 {
    font-size: 1.4rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.service-card p,
.skill-card p {
    color: var(--gray-medium);
    line-height: 1.6;
}

.service-value {
    margin-top: 1rem;
    color: var(--primary-dark);
    font-weight: 600;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-info {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.contact-info h2 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--gray-medium);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.confidential-note {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--gray-light);
    border-radius: var(--border-radius);
    color: var(--primary-dark);
    font-weight: 600;
}

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.form-status {
    margin-bottom: 1rem;
    padding: 0.9rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    display: none;
}

.form-status-success {
    display: block;
    background: rgba(56, 178, 172, 0.15);
    color: #2c7a7b;
    border: 1px solid rgba(56, 178, 172, 0.45);
}

.form-status-error {
    display: block;
    background: rgba(237, 137, 54, 0.15);
    color: #9c4221;
    border: 1px solid rgba(237, 137, 54, 0.45);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
    font-weight: 600;
}

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

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.15);
}

.contact-cta {
    margin-top: 1.5rem;
    font-weight: 600;
    color: var(--primary-dark);
}

@media (max-width: 768px) {
    .page-hero h1 {
        font-size: 2.5rem;
    }

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

@media (max-width: 480px) {
    .page-hero h1 {
        font-size: 2rem;
    }

    .page-hero .lead {
        font-size: 1.1rem;
    }
}