:root {
--bg-color: #f8fafc;       /* Sayfa arka planı (açık gri/beyaz) */
    --text-color: #1e293b;     /* Ana yazı rengi (koyu lacivert/siyah) */
    --card-bg: #ffffff;        /* Kartların arka planı (tam beyaz) */
    --header-text: #ffffff;    /* Header içindeki yazılar hep beyaz kalsın */
    --primary-color: #6366f1;  /* İndigo vurgu */
}

[data-theme="dark"] {
    /* KOYU MOD RENKLERİ */
    --bg-color: #0f172a;       /* Sayfa arka planı (gece mavisi) */
    --text-color: #f1f5f9;     /* Ana yazı rengi (beyaz/açık gri) */
    --card-bg: #1e293b;        /* Kartların arka planı (koyu lacivert) */
}

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


body{
    line-height: 1.6;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    transition: all 0.4s ease;
    max-width: 100%;
    position: relative;

}

main, .container, #wrapper { 
    overflow-x: hidden; 
}

.container, .section {
    overflow: visible !important;
}


html {
    scroll-behavior: smooth;
    max-width: 100%;
    position: relative;
}

.header{
    background: linear-gradient(135deg, #13141a 0%, #337894 100%);
    color: white;
    text-align: center;
    padding: 60px 20px;
    text-shadow: -8px -2px  rgb(0, 0, 0);
}

.header h1, .header p {
    color: var(--header-text);
}

.header p{
      font-size: 20px;
     text-shadow: -5px -2px  rgb(0, 0, 0);
}

.profile-img{
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 5px solid #272727;
    margin-bottom: 20px;
    
    
}

.nav{
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #3e4041;
    padding: 15px 0;
    width: 100%;
}

.nav ul{
    list-style: none;
    display: flex;
    justify-content:center;
    gap: 30px;
}


.section, .project-card, .project-card-vertical {
    background-color: var(--card-bg) !important;
}

.nav ul a{
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.6s;
    
}

.nav a:hover{
    color: #337894;
    transition: color 0.6s;
}

.container{
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    font-family: Georgia, 'Times New Roman', Times, serif;
}

.section{
    background-color: var(--card-bg) !important; 
    color: var(--text-color); 
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
    margin-bottom: 50px;
    
    
}


.project-card, .project-card-vertical {
    background-color: var(--card-bg) !important; /* Beyaz yerine değişken */
    color: var(--text-color); /* Yazı rengini de bağladık */
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease;
    border-radius: 15px;
    height: 600px;
    padding: 30px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0 auto !important;
    border: 1px solid rgba(0,0,0,0.1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}


.section h2{
    color: var(--text-color);
    padding-bottom: 15px;
    text-align: center;
}

.skills{
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    cursor: pointer;
}

.skill:hover{
    background-color: #096694;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
    transform: scale(1.1);
    cursor: pointer;
}

.skill{
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    margin-bottom: 40px;
    background: #e0e7ff; /* Açık indigo */
    color: var(--primary-color); /* Koyu indigo */
    border: 1px solid #c7d2fe;
    font-weight: bold;
}


.projects{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap:50px;
    
    
}

.footer{
    background: #333;
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top:40px;
}

.profile__social{
  display: flex;
  justify-content: center;
  column-gap: .75rem;
}

.profile__social-link{
  font-size: 1.25rem;
  color:black;
  transition: .3s;
  
}




.profile__social-link img{
    width: 30px;
    
}

.project-card img{
    width: 500px;
}

.view{
    margin-top: 50px;
    color: white;
    padding: 10px;
    text-align: center;
    justify-self: center;
    transition-duration: 0.4s;
    align-items: center;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    background-color: var(--primary-color);
    border-radius: 8px;
    font-weight: 600;
    letter-spacing: 0.5px;
    
}

.view a{
    text-decoration: none;
     color: white;
     
}

.view:hover{
    color: #ffffff !important;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
    transform: translateY(-3px) scale(1.05);
    cursor: pointer;
    background-color: var(--secondary-color);
    transform: translateY(-2px) scale(1.02);
}

.view:hover a {
    color: #858585 !important;
}



.mobile-screens {
    display: flex;
    gap: 10px;
}
.mobile-screens img {
    width: 48%; /* İki resmi yan yana sığdırır */
    height: auto;
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-card-vertical:hover{
    transform: translateY(-10px);
}

.project-card img, .project-card-vertical img {
    width: 100%; 
    height: 250px; 
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 15px;
}



.pro-section h2{
    text-align: center;
    margin-top: 100px;
    margin-bottom: 50px;
    
}

.project-card p{
    margin-top: 20px;
}

.contact-section {
    text-align: center;
    background-color: var(--card-bg) !important; /* Arka planı değişkene bağla */
    color: var(--text-color);
}

.contact-container {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.contact-button {
    display: flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #13141a 0%, #337894 100%);
    color: white !important; /* Link rengini beyaz yap */
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(51, 120, 148, 0.3);
}

.contact-button:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 30px rgba(51, 120, 148, 0.5);
    filter: brightness(1.2);
}

.social-links-footer {
    display: flex;
    gap: 20px;
}

.social-links-footer a {
    color: #337894;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}



.social-links-footer a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

#iletisim{
    margin-top: 200px;
}


#typewriter {
    border-right: 3px solid var(--primary-color);
    padding-right: 5px;
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0% { border-color: transparent; }
    50% { border-color: var(--primary-color); }
    100% { border-color: transparent; }
}




@media (max-width: 768px) {
    
    
    .container {
        padding: 20px 15px; /* Kenar boşluklarını daralt */
    }

    .section {
        padding: 25px 15px; /* İç boşluğu azalt */
    }

    /* 2. Kartların Sabit Boyutlarını İptal Et (Kritik!) */
    .project-card, .project-card-vertical {
        width: 100% !important;
        height: auto !important; 
        min-height: auto;
        padding: 20px;
        margin: 0 0 20px 0;
    }

    /* 3. Resimleri ve İçeriği Esnet */
    .project-card img, .project-card-vertical img {
        height: 200px; 
        width: 100%;
        object-fit: cover;
    }

    /* 4. Grid Yapısını Tek Kolona Düşür */
    .projects {
        grid-template-columns: 1fr !important; 
        gap: 20px;
    }

    
    .nav ul {
        gap: 15px;
        font-size: 14px;
    }

  
    .header h1 {
        font-size: 28px;
    }
}


@media (max-width: 400px) {
    .nav ul {
        gap: 8px;
        font-size: 12px;
    }
    
    .view {
        width: 100%;
    }
}