/* ===========================
   CSS Variables & Root
   =========================== */

:root {
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-border: #e5e5e5;
    --color-primary: #0066cc;
    --color-primary-hover: #0052a3;
    --color-accent: #f8f9fa;
    --header-bg: rgba(255, 255, 255, 0.8);
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Menlo, Courier, monospace;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius: 8px;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0f0f0f;
        --color-text: #e5e5e5;
        --color-text-light: #a0a0a0;
        --color-border: #2a2a2a;
        --color-accent: #151515;
        --header-bg: rgba(15, 15, 15, 0.8);
    }
}

/* ===========================
   Global Styles
   =========================== */

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    transition: background-color var(--transition-slow), color var(--transition-slow);
    overflow-x: hidden;
}

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

a:hover {
    color: var(--color-primary-hover);
}

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

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(to right, var(--color-primary), #00c6ff);
    z-index: 2000;
    transition: width 0.1s ease-out;
}

/* ===========================
   Layout
   =========================== */

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===========================
   Header & Navigation
   =========================== */

.header {
    position: sticky;
    top: 0;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header.scrolled {
    padding: 5px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    transition: padding var(--transition-normal);
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-text);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 4px 0;
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-cv {
    background-color: var(--color-primary);
    color: white !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal) !important;
}

.nav-cv::after {
    display: none;
}

.nav-cv:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.2);
}

/* ===========================
   Hero Section (Typography Driven)
   =========================== */

.hero {
    padding: 12vh 0 8vh;
    text-align: left;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 800px;
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    color: var(--color-text); /* Force back to text color for "Bonjour..." */
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.hero-name span {
    color: var(--color-primary); /* Force name to be blue */
}

.hero-description {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 650px;
    line-height: 1.6;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) 0.2s forwards;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) 0.3s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===========================
   Buttons
   =========================== */

.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-text);
    color: var(--color-bg);
}

.btn-primary:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 102, 204, 0.15);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text);
    transform: translateY(-3px);
}

/* ===========================
   Section Animations
   =========================== */

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   About Section
   =========================== */

.about {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-accent);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.about-vision {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
    position: relative;
    padding-left: var(--spacing-md);
    border-left: 4px solid var(--color-primary);
}

.about-text p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

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

/* ===========================
   Featured Projects
   =========================== */

.featured-projects {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-accent);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.view-all {
    font-weight: 600;
    color: var(--color-primary);
    position: relative;
    padding-bottom: 2px;
}

.view-all::after {
    content: '→';
    margin-left: 5px;
    transition: margin var(--transition-normal);
}

.view-all:hover::after {
    margin-left: 10px;
}

/* Reuse project-card styles from projects.css (ensure it's included or duplicate here for homepage) */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
    border-color: transparent;
}

.project-image {
    height: 180px;
    width: 100%;
}

.project-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.project-description {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tag {
    background-color: var(--color-accent);
    color: var(--color-text);
    padding: 0.2rem 0.6rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    font-family: var(--font-mono);
}

.project-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.project-link {
    font-size: 0.9rem;
    font-weight: 600;
}

/* ===========================
   Connect Section
   =========================== */

.connect {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.connect h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.connect p {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.social-links-large {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.8rem 1.5rem;
    background-color: var(--color-accent);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    color: var(--color-text);
    font-weight: 600;
    transition: all var(--transition-normal);
}

.social-btn:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

/* ===========================
   Footer
   =========================== */

.footer {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
    text-align: center;
    color: var(--color-text-light);
}

.footer p {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

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

.footer-links a {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-text);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition-normal);
}

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

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .about-vision {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 10vh 0 5vh;
        min-height: auto;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .connect h2 {
        font-size: 2.2rem;
    }
    
    .nav {
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .header-content {
        padding: var(--spacing-md) 0;
    }
    
    .nav {
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        font-size: 0.85rem;
    }
}
 }
}