:root {
    --primary-color: #1a1a1a;
    --accent-color: #c49b63;
    --bg-color: #ffffff;
    --light-gray: #f4f4f4;
    --font-main: 'Montserrat', sans-serif;
    --font-heading: 'Playfair Display', serif;
    --header-bg: rgba(255, 255, 255, 0.95);
    --header-shadow: rgba(0, 0, 0, 0.05);
    --timeline-content-p: #555;
    --main-bg-color:#f4f4f4;
    --footer-bg-color:#1a1a1a;
    --card-border:#dedede;
}


body.dark-mode {
    --primary-color: #DBD9D9; 
    --bg-color: #121212;      
    --light-gray: #1e1e1e;    
    --header-bg: rgba(18, 18, 18, 0.95); 
    --header-shadow: rgba(255, 255, 255, 0.05);
    --timeline-content-p: #878787;
    --main-bg-color: #524F4F;
    --footer-bg-color:#1e1e1e;
    --border-color:#333333;
}

.theme-btn {
    color: var(--primary-color);
    border: none;
    background: none;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.theme-btn:hover {
    color: var(--accent-color); 
}


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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--primary-color);
    line-height: 1.6;
    background-color: var(--bg-color);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    position: fixed;
    width: 100%;
    background: var(--header-bg);
    box-shadow: 0 2px 10px var(--header-shadow);
    z-index: 1000;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--accent-color);
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    transition: color 0.3s;

}

nav ul li a:hover {
    color: var(--accent-color);
}

section {
    padding: 80px 5%;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    margin: 15px auto 0;
}


#main {
    background-color: var(--main-bg-color);
    min-height: 90vh; 
    display: flex;
    align-items: center; 
    padding: 0 5%; 
}

.hero-container {
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    width: 100%;
    max-width: 1200px; 
    margin: 0 auto; 
}


.hero-text {
    flex: 1; 
    padding-right: 50px; 
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #000000;
    
}

.hero-text p {
    font-size: 1.2rem;
    color: #000000;
    margin-bottom: 30px;
    max-width: 500px; 
}


.hero-image {
    flex: 1; 
    display: flex;
    justify-content: center;
}

.hero-image svg {
    width: 100%; 
    max-width: 500px; 
    height: auto;
}


.floating-animate {
    animation: float 4s ease-in-out infinite;
}

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


.code-lines path {
    animation: pulse 2s infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.6; }
    100% { opacity: 1; }
}


.btn {
    display: inline-block;
    padding: 12px 30px;
    background: #000000;
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    transition: background 0.3s;
}

.btn:hover {
    background: var(--accent-color);
}


#experience{
    border-top: 5px solid var(--light-gray);
}
.timeline-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}


.timeline-container::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--light-gray);
    
}

.timeline-item {
    display: flex;
    margin-bottom: 40px;
    position: relative;
    padding-left: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 5px;
    width: 14px;
    height: 14px;
    background: var(--accent-color);
    border-radius: 50%;
    border: 3px solid #fff;
}

.timeline-date {
    min-width: 150px;
    font-weight: 700;
    color: var(--accent-color);
    font-family: var(--font-heading);
    padding-top: 2px;
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.timeline-content h4 {
    font-size: 1rem;
    font-weight: 400;
    color: #666;
    margin-bottom: 10px;
    font-style: italic;
}

.timeline-content p {
    color: var(--timeline-content-p);
    font-size: 0.95rem;
}


#portfolio .git_a{
    color: var(--accent-color);
}
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.gallery a{
    color: var(--primary-color); 
    text-decoration: none; 
}

.gallery a:visited {
    color: var(--primary-color); 
}


.gallery a:active {
    color: var(--primary-color);
}
.project-card {
    height: 500px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px; 
    padding: 30px; 
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden; 
}

.project-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 5px; 
    background: var(--accent-color);
    transition: width 0.3s; 
}

.project-card:hover::before {
    width: 10px;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.project-info {
    padding: 0; 
}

.project-info h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.liste-gibi-p {
    display: list-item;       
    list-style-type: disc;    
    list-style-position: inside; 
    margin-left: 10px;        
    margin-top: 30px;
    color: var(--primary-color); 
}

#contact a{
    color: var(--primary-color);
    text-decoration: none;
}
#contact {
    min-height: auto; 
    padding: 50px 5%; 
    
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center; 
}


footer {
    background: var(--footer-bg-color);
    color: #fff;
    text-align: center;
    padding: 40px;
    font-size: 0.9rem;
}


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

    nav ul {
        display: none;
    }

    section {
        padding: 60px 20px;
    }

    .timeline-item {
        flex-direction: column;
    }

    .timeline-date {
        margin-bottom: 10px;
    }
}

@media (max-width: 991px) { 
    .hero-container {
        flex-direction: column; 
        text-align: center;
        padding-top: 40px;
    }

    .hero-text {
        padding-right: 0;
        margin-bottom: 40px;
        order: 1; 
        width: 100%;
    }

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

    .hero-image {
        order: 2; 
        width: 100%;
        margin-bottom: 30px;
    }

    .hero-image svg {
        width: 80%;
        max-width: 400px;
    }
}