/* Renk teması değişkenleri */
:root {
    --primary-color: #FFC107;
    --secondary-color: #1E1E1E;
    --background-color: #121212;
    --text-color: #FFFFFF;
    --hover-color: #2D2D2D;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.main-header {
    background: transparent;
    padding: 40px 0 0 0;
    text-align: center;
}
.profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}
.profile-img {
    width: 120px;
    border: 4px solid var(--primary-color);
    box-shadow: 0 4px 24px rgba(0,0,0,0.12);
    object-fit: cover;
}
.profile-info h1 {
    font-size: 2.3rem;
    margin: 0 0 8px 0;
    color: var(--primary-color);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}
.bio {
    font-size: 1.1rem;
    color: #FFD54F;
    margin: 0 0 10px 0;
}
.social-links {
    display: flex;
    gap: 18px;
    justify-content: center;
    margin-top: 8px;
}
.social-links img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: #fff;
    padding: 4px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.social-links img:hover {
    transform: scale(1.15) rotate(-6deg);
    box-shadow: 0 4px 16px var(--primary-color);
}
.skills-section {
    margin: 32px auto 0 auto;
    max-width: 700px;
    background: var(--secondary-color);
    border-radius: 18px;
    box-shadow: var(--card-shadow);
    padding: 28px 18px 18px 18px;
    text-align: center;
    backdrop-filter: blur(8px);
}
.skills-section h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 14px;
}
.skills-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
}
.skills-list li {
    background: var(--hover-color);
    color: var(--primary-color);
    border-radius: 8px;
    padding: 8px 18px;
    font-weight: 500;
    font-size: 1rem;
    box-shadow: var(--card-shadow);
    transition: background 0.2s, color 0.2s;
}
.projects-section {
    margin: 40px auto 0 auto;
    max-width: 900px;
    padding: 0 16px;
}
.projects-section h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 24px;
    text-align: center;
}
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 56px;
    justify-items: center;
}
.container {
    background: linear-gradient(145deg, var(--secondary-color), var(--hover-color));
    border-radius: 18px;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.10);
    padding: 32px 18px 22px 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: transform 0.25s cubic-bezier(.23,1.02,.64,1), box-shadow 0.25s;
    max-width: 320px;
    width: 100%;
    animation: glassFadeIn 1s cubic-bezier(.23,1.02,.64,1) both;
}
@keyframes glassFadeIn {
    0% { opacity: 0; transform: translateY(24px) scale(0.96); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}
.container:hover {
    transform: translateY(-12px) scale(1.06) rotate(-1deg);
    box-shadow: 0 12px 36px var(--primary-color);
}
.container img {
    width: 72px;
    height: 72px;
    border-radius: 12px;
    margin-bottom: 12px;
    object-fit: cover;
}
.github-username {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 6px;
}
.contact-section {
    margin: 48px 0 0 0;
    text-align: center;
}
.contact-section h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 18px;
}
.contact-btn {
    background: var(--primary-color);
    color: var(--background-color);
    padding: 14px 36px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border: none;
    transition: background 0.2s, color 0.2s;
    cursor: pointer;
}
.contact-btn:hover {
    background: var(--hover-color);
    color: var(--primary-color);
}
.main-footer {
    margin-top: 48px;
    text-align: center;
    color: var(--primary-color);
    font-size: 1rem;
    padding-bottom: 24px;
}
@media (max-width: 900px) {
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .skills-section {
        max-width: 98vw;
    }
}
@media (max-width: 600px) {
    .main-header {
        padding: 24px 0 0 0;
    }
    .profile-img {
        width: 90px;
        height: 90px;
    }
    .profile-info h1 {
        font-size: 1.5rem;
    }
    .projects-section h2, .skills-section h2 {
        font-size: 1.2rem;
    }
    .container {
        padding: 18px 8px 12px 8px;
        max-width: 98vw;
    }
    .skills-list li {
        font-size: 0.95rem;
        padding: 6px 12px;
    }
    .projects-grid {
        gap: 24px;
    }
}