* {
    font-family: var(--font-main);  
}

h1, h2, h3, .logo-text, .hero-title {
    font-family: var(--font-heading);  
    font-weight: 700;
}

body {
    line-height: 1.8;  
}
    :root {
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;

    --primary: #5A53E0;
    --secondary: #FF5278;
    --accent: #FFD166;
    --dark: #1F1E29;
    --light: #F9F9F9;

    --skill-html: #E34F26;
    --skill-js: #F7DF1E;
    --skill-react: #61DAFB;
    --skill-python: #3776AB;
    --skill-java: #007396;
}

    .skill-item .fa-java { color: var(--skill-java); }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
        scroll-behavior: smooth;
    }

    body {
          background:
        radial-gradient(circle at 20% 20%, rgba(90,83,224,0.06), transparent 40%),
        radial-gradient(circle at 80% 30%, rgba(255,82,120,0.05), transparent 45%),
        #f7f8fc;
        color: var(--dark);
        line-height: 1.6;
        overflow-x: hidden;
        transition: background-color 0.4s, color 0.4s, overflow 0.3s;
    }
    
    body.menu-open {
        overflow: hidden;  
    }
    
     body.dark-mode {
        background-color: var(--bg-dark);
        color: var(--text-dark);
    }
    body.dark-mode .logo, body.dark-mode .nav-links a {
        color: var(--text-dark);
    }
    body.dark-mode nav {
        background: rgba(18, 18, 18, 0.5);  
    }
    body.dark-mode .about-card, body.dark-mode .service-card {
        background: #1e1e1e;
        box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
    }
    body.dark-mode .btn {
        box-shadow: 0 4px 15px rgba(255, 82, 120, 0.4);  
    }
    body.dark-mode .btn:hover {
        box-shadow: 0 8px 20px rgba(255, 82, 120, 0.6);
    }

     body::-webkit-scrollbar {
        width: 12px;
    }
    body::-webkit-scrollbar-thumb {
        background-color: var(--primary); 
        border-radius: 6px;
        border: 3px solid var(--light); 
    }
    body::-webkit-scrollbar-track {
        background: var(--light);
    }
     a:focus, button:focus, input:focus, textarea:focus, select:focus {
        outline: 4px solid var(--accent); 
        outline-offset: 2px;
        border-radius: 5px; 
    }

     .visually-hidden {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        padding: 0 !important;
        margin: -1px !important;
        overflow: hidden !important;
        clip: rect(0,0,0,0) !important;
        white-space: nowrap !important;
        border: 0 !important;
    }
     .skip-link:focus {
        position: static !important;
        width: auto !important;
        height: auto !important;
        padding: 10px 20px !important;
        margin: 10px !important;
        background: var(--primary);
        color: white;
        text-align: center;
        z-index: 9999;
        text-decoration: none;
        border-radius: 5px;
    }

     nav {
     background: linear-gradient(
        135deg,
        rgba(90,83,224,0.88),
        rgba(255,82,120,0.88)
    );
    backdrop-filter: blur(10px);
    height: 70px;
    padding: 0 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;

   box-shadow:
        0 8px 25px rgba(0,0,0,0.25);

    position: sticky;
    top: 0;
    z-index: 1000;
    transition:
        background 0.4s ease,
        box-shadow 0.4s ease,
        backdrop-filter 0.4s ease;
        animation: navbarGradient 12s ease infinite;
}
.nav-links a.active-nav {
    color: #FFD166;
    text-shadow:
        0 0 4px rgba(255,209,102,0.45),
        0 0 8px rgba(255,209,102,0.25);
}
@keyframes navbarGradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}
.nav-links a.active-nav::after {
    background: linear-gradient(
        to right,
        #FFD166,
        #ff5278
    );
    box-shadow: 0 0 12px rgba(255,209,102,0.8);
}
@media (max-width: 992px) {
    .nav-links {
        transform: translateY(-20px);
        opacity: 0;
        transition:
            opacity 0.4s ease,
            transform 0.4s ease;
    }
}
@media (max-width: 992px) {
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }
}

nav::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255,255,255,0.5),
        transparent
    );
    opacity: 0.4;
}.nav-links a {
    position: relative;
    color: #fff;
}

 .nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0%;
    height: 3px;
    background: #FFD166;
    transition: width 0.3s ease;
}


.nav-links a:hover::after,
.nav-links a.active-nav::after {
    width: 100%;
}

    nav.shrink {
   background: linear-gradient(
        135deg,
        rgba(25,25,40,0.95),
        rgba(15,15,25,0.95)
    );

    backdrop-filter: blur(18px);

    box-shadow:
        0 20px 45px rgba(0,0,0,0.45);
}

    body.dark-mode nav.shrink {
     background: linear-gradient(
        135deg,
        rgba(18,18,30,0.95),
        rgba(30,30,45,0.95)
    );
    }
nav.shrink .nav-links a {
    color: #ffffff;
}

    .logo {
        color: var(--dark);
        display: flex; 
        align-items: center;
        gap: 10px;
        font-size: 1.6rem;
        font-weight: 800;
        letter-spacing: 0.5px;
        z-index: 1002;
        transition: transform 0.3s;
        text-decoration: none;
         background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    
    .logo img {
         height: 296px; 
        max-height: 100%;  
        width: auto;
        vertical-align: middle;
        display: inline-block;
        border: none;
        transition: height 0.3s ease; 
        filter: drop-shadow(0 0 10px rgba(255,255,255,0.4));
    transition:
        transform 0.3s ease,
        filter 0.3s ease;
    }
    .logo:hover {
        transform: scale(1.05);
    }
    .logo:hover img {
    filter: drop-shadow(0 0 20px rgba(255,209,102,0.8));
    transform: scale(1.05);
}

     .logo .logo-text {
        font-size: 1.6rem;
        transition: font-size 0.3s ease;
    }

    .nav-links {
        margin: 0 auto; 
        display: flex;
        list-style: none;
        gap: 4rem;
    }

    .nav-links a {
        text-decoration: none;
        font-size: 1.1rem;
        position: relative;
        padding: 8px 0;
        transition: color 0.3s, transform 0.2s;
        color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.3px;
    }

   
    .nav-links a:hover, .nav-links a.active-nav {
     color: #FFD166;
        transform: translateY(-3px);
    }
    .nav-links a:hover::after, .nav-links a.active-nav::after {
        width: 100%;
    }
 

.nav-links a:hover::after,
.nav-links a.active-nav::after {
    width: 100%;
}

.nav-links a:hover {
    color: #FFD166;
}

body.dark-mode nav {
    background: linear-gradient(
        135deg,
        rgba(15,15,25,0.95),
        rgba(25,25,40,0.95)
    );
}

body.dark-mode .nav-links a {
    color: #f5f5f5;
}

body.dark-mode .nav-links a:hover {
    color: var(--secondary);
}
@media (max-width: 992px) {
    .nav-links {
        background: linear-gradient(
            180deg,
            rgba(20,20,35,0.98),
            rgba(10,10,20,0.98)
        );
        backdrop-filter: blur(20px);
    }
}
nav::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255,255,255,0.6),
        transparent
    );
}

    .nav-right {
        display: flex;
        align-items: center;
        gap: 1rem;
        z-index: 1002;
    }

     .lang-btn {
        background: var(--primary); 
        border: none;
        color: white;
        padding: 0.5rem 1rem;
        border-radius: 20px;
        cursor: pointer;
        font-weight: bold;
        font-size: 0.9rem;
        transition: 0.3s;
        box-shadow: 0 4px 10px rgba(90, 83, 224, 0.3);
    }
    .lang-btn:hover {
        background: var(--secondary); 
        box-shadow: 0 4px 12px rgba(255, 82, 120, 0.4);
    }
    
    body.dark-mode .lang-btn {
        background: var(--secondary); 
        color: var(--dark);
        box-shadow: none;
    }
    body.dark-mode .lang-btn:hover {
        background: var(--primary); 
        color: var(--light);
    }
    
    .toggle-btn {
    background: rgba(255,255,255,0.85);
    border: 2px solid rgba(255,255,255,0.6);
    color: #1f1e29;

    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    cursor: pointer;

    display: flex;
    align-items: center;
    justify-content: center;

    box-shadow:
        0 4px 15px rgba(0,0,0,0.25);

    transition:
        background 0.3s ease,
        color 0.3s ease,
        box-shadow 0.3s ease,
        transform 0.2s ease;
}

    body.dark-mode .toggle-btn {
    background: rgba(20,20,35,0.95);
    border: 2px solid rgba(255,255,255,0.25);
    color: #ffffff;

    box-shadow:
        0 0 12px rgba(255,255,255,0.25);
}

    .toggle-btn:hover {
    background: #FFD166;
    color: #1f1e29;

    box-shadow:
        0 0 18px rgba(255,209,102,0.9);

    transform: scale(1.08);
}

    body.dark-mode .toggle-btn:hover {
    background: var(--secondary);
    color: #ffffff;

    box-shadow:
        0 0 20px rgba(255,82,120,0.9);
}
.toggle-btn i {
    font-size: 1.1rem;
    pointer-events: none;
}



    .hamburger {
        display: none;
        cursor: pointer;
        font-size: 1.5rem;
        color: var(--dark);
        background: transparent;
        border: none;
        padding: 5px;
        z-index: 1002;
    }
    
    section {
        padding: 5rem 5%;
        min-height: auto;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
    }

    h2 {
        font-size: clamp(2rem, 5vw, 3rem); 
        margin-bottom: 2rem;
        position: relative;
        display: inline-block;
    }

    h2::after {
        content: '';
        width: 50%;
        height: 4px;
        background: var(--gradient);
        position: absolute;
        bottom: -10px;
        left: 50%;
        transform: translateX(-50%);
        border-radius: 2px;
    }

    

#home {
    min-height: 90vh;
    position: relative;
    overflow: hidden;

    
    background-image:
        linear-gradient(
            rgba(255,255,255,0.75),
            rgba(255,255,255,0.75)
        );
        
         

    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
body.dark-mode #home {
     background-image:
        linear-gradient(
            rgba(0,0,0,0.65),
            rgba(0,0,0,0.65)
        );
         
}


    
    
   

    .hero-title { 
        font-size: clamp(2.5rem, 8vw, 4rem); 
        margin-bottom: 1rem; 
        color: var(--dark); 
        line-height: 1.2; 
    }
    body.dark-mode .hero-title {
        color: var(--text-dark);
    }
    .hero-role { font-size: 1.4rem; color: var(--secondary); font-weight: 500; margin-top: -0.5rem; margin-bottom: 0.5rem; }
    .highlight { color: var(--primary); }

    .btn {
        display: inline-block;
        padding: 0.9rem 2.5rem;
        background: var(--gradient);
        color: white;
        text-decoration: none;
        border-radius: 50px;
        margin-top: 2rem;
        font-weight: bold;
        box-shadow: 0 4px 15px rgba(90, 83, 224, 0.4);
        transition: transform 0.3s;
        border: none;
        cursor: pointer;
    }
    .btn:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(90, 83, 224, 0.6);
    }

    #services { background-color: white; }
    body.dark-mode #services { background-color: #1a1a1a; }
    
    .services-container { 
        display: grid; 
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
        gap: 2rem; 
        width: 100%; 
        max-width: 1200px;
    }
    .service-card { 
        background: var(--light); 
        padding: 2rem; 
        border-radius: 15px; 
        box-shadow: 0 5px 15px rgba(0,0,0,0.05); 
        transition: transform 0.3s; 
        border-top: 5px solid var(--secondary); 
        text-align: center;
    }
    .service-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    }

    .service-icon { font-size: 3rem; margin-bottom: 1rem; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

    #about { background-color: var(--light); }
    body.dark-mode #about { background-color: #121212; }
    .about-card { background: white; padding: 3rem; border-radius: 20px; max-width: 900px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); text-align: left; }
    body.dark-mode .about-card { background: #1e1e1e; }
    .cv-section-title { color: var(--primary); font-size: 1.2rem; margin-top: 1.5rem; margin-bottom: 0.5rem; font-weight: bold; text-transform: uppercase; }

    .skills-grid { display: flex; justify-content: center; gap: 2.5rem; margin-top: 1.5rem; flex-wrap: wrap; }
    .skill-item { display: flex; flex-direction: column; align-items: center; gap: 10px; font-weight: 600; width: 120px; }
    .skill-item i { font-size: 3.5rem; transition: transform 0.3s, filter 0.3s; filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1)); }
    .skill-item:hover i { transform: translateY(-8px) scale(1.1); }
    .skill-item .fa-html5 { color: var(--skill-html); }
    .skill-item .fa-js { color: var(--skill-js); }
    .skill-item .fa-react { color: var(--skill-react); }
    .skill-item .fa-python { color: var(--skill-python); }
    .skill-item .fa-database { color: var(--skill-db); }


    /* İLETİŞİM */
    #contact { background: linear-gradient(135deg, var(--dark), #101018); color: var(--light); padding-bottom: 6rem; }
    .form-container { 
        background: rgba(255,255,255,0.08); 
        padding: 2rem; 
        border-radius: 15px; 
        width: 100%; 
        max-width: 500px; 
        margin: 2rem 0; 
        backdrop-filter: blur(10px); 
    }
    
    input, textarea, select { 
        padding: 1rem; 
        border-radius: 8px; 
        border: none; 
        font-size: 1rem; 
        width: 100%; 
        margin-bottom: 15px;
        color: var(--dark); /* Koyu metin */
    }
    body.dark-mode input, body.dark-mode textarea, body.dark-mode select {
        background: #333;
        color: var(--text-dark);
    }
    
    .submit-btn { 
        padding: 1rem; 
        border: none; 
        border-radius: 8px; 
        cursor: pointer; 
        font-weight: bold; 
        font-size: 1.1rem; 
        background: var(--secondary); 
        color: white; 
        transition: 0.3s; 
        margin-top: 5px;
    }
    .submit-btn:hover { background: var(--primary); }
    
    .social-icons { display: flex; justify-content: center; gap: 3rem; margin-top: 3.5rem; flex-wrap: wrap; padding: 0 5%; }
    .social-icon { width: 80px; height: 80px; font-size: 2.2rem; background: white; color: var(--dark); border-radius: 50%; display: flex; align-items: center; justify-content: center; text-decoration: none; transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55); box-shadow: 0 5px 15px rgba(0,0,0,0.3); }
    .social-icon:hover { transform: translateY(-12px) scale(1.15); color: white; }
    
    .social-icon.linkedin:hover { background: #0077b5; box-shadow: 0 0 20px #0077b5; }
    .social-icon.instagram:hover { background: #E1306C; box-shadow: 0 0 20px #E1306C; }
    .social-icon.whatsapp:hover { background: #25D366; box-shadow: 0 0 20px #25D366; }
    .social-icon.mail:hover { background: var(--secondary); box-shadow: 0 0 20px var(--secondary); }
    .social-icon.phone:hover { background: var(--primary); box-shadow: 0 0 20px var(--primary); }

    .fixed-contact-button {
        position: fixed;
        bottom: 40px; 
        z-index: 1003; 
        width: 70px; 
        height: 70px; 
        font-size: 2.5rem; 
        color: white; 
        border-radius: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
        text-decoration: none;
        box-shadow: 0 8px 18px rgba(0, 0, 0, 0.6);
        transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }
    .fixed-contact-button:hover { transform: scale(1.35) translateY(-15px) rotate(5deg); box-shadow: 0 15px 30px rgba(0, 0, 0, 0.7); }
    .fixed-whatsapp { left: 40px; background-color: #25D366; }
    .fixed-mail { right: 40px; background-color: var(--secondary); }
    
    
    @media (max-width: 1200px) {
        .services-container {
            max-width: 90%; 
        }
        .about-card {
            max-width: 90%; 
            padding: 2.5rem; 
        }
        .fixed-whatsapp { left: 30px; }
        .fixed-mail { right: 30px; }
    }


   @media (max-width: 992px) {
        .hamburger { display: block; }
        
        nav {
            justify-content: space-between; 
        }

        .nav-right {
            display: flex; 
            align-items: center;
            gap: 0.4rem; 
            z-index: 1002; 
        }

        .logo .logo-text {
            font-size: 1.2rem;
        }

        .lang-btn {
            padding: 0.2rem 0.5rem; 
            font-size: 0.75rem;     
            border-radius: 15px;    
        }
        
        .toggle-btn {
            padding: 0.2rem 0.5rem; 
            font-size: 0.8rem; 
            margin-left: 5px; 
            border-radius: 15px;
        }
        
        .toggle-btn i {
            font-size: 1.0rem; 
        }
        
        .nav-links {
            position: fixed;
            top: 70px;
            left: 0; 
            width: 100%; 
            height: calc(100vh - 70px);
            background-color: var(--dark);
            flex-direction: column;
            justify-content: flex-start; 
            align-items: flex-start; 
            padding-left: 10%; 
            padding-top: 2rem;
            gap: 2rem; 
            z-index: 1001;
            
            opacity: 0; 
            visibility: hidden; 
            transform: none; 
            transition: opacity 0.4s ease, visibility 0.4s ease; 
        }
        .nav-links.active { 
            opacity: 1; 
            visibility: visible;
        }

        .nav-links li a { 
            color: var(--light); 
            font-size: 1.4rem; 
            padding: 10px 0; 
        }
        .nav-links.active a:hover, .nav-links.active a.active-nav {
            color: var(--secondary);
        }
        .nav-links.active a:hover::after, .nav-links.active a.active-nav::after {
            background: var(--secondary);
        }
        
        .fixed-contact-button {
            bottom: 25px; 
            width: 65px; 
            height: 65px; 
            font-size: 2.2rem;
        }
        .fixed-whatsapp { left: 25px; }
        .fixed-mail { right: 25px; }
    }
    @media (max-width: 768px) {
        .logo img {
            height: 191px; 
        }
        
        .hero-title { font-size: clamp(2.5rem, 8vw, 4rem); }
        .hero-role { font-size: 1.2rem; }
        
        .fixed-contact-button { width: 60px; height: 60px; font-size: 2rem; bottom: 15px; }
        .fixed-whatsapp { left: 15px; }
        .fixed-mail { right: 15px; }
    }

    /* FOOTER */
    #footer {
        background-color: var(--dark);
        color: rgba(255, 255, 255, 0.7);
        text-align: center;
        padding: 1.5rem 5%;
        font-size: 0.9rem;
        border-top: 3px solid var(--secondary);
    }
    @keyframes skillPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
    }

    .skill-item:hover i {
    animation: skillPulse 1s infinite;
    filter: drop-shadow(0 0 15px var(--primary));
    }  
    #scrollProgress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 9999;
    transition: width 0.1s linear;
}
body.fade-out {
    opacity: 0;
    transition: opacity 0.3s ease;
}
body.page-transition {
    opacity: 0.3;
    transform: translateY(-8px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

section {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

section.show {
    opacity: 1;
    transform: translateY(0);
}

/* Buton basma efekti */
.btn {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:active {
    transform: scale(0.96);
}
h1, h2, h3, .hero-title {
    font-family: 'Poppins', sans-serif;
    letter-spacing: -0.5px;
}
.hero-title {
    font-weight: 800;
    line-height: 1.15;
}

.hero-role {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
}
.nav-links a {
    font-weight: 600;
}

.btn, .lang-btn, .toggle-btn {
    font-weight: 600;
    letter-spacing: 0.3px;
}
.about-card p {
    font-size: 1.05rem;
    line-height: 1.75;
}

section:not(#home):not(#contact) {
    position: relative;
}

section:not(#home):not(#contact)::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        rgba(90,83,224,0.3),
        transparent
    );
}
.services-container,
.skills-grid {
    background: rgba(90, 83, 224, 0.03);
    padding: 3rem 2rem;
    border-radius: 30px;
}
#cta {
    background: linear-gradient(
    135deg,
    #ffffff 0%,
    #f5f7ff 50%,
    #ffffff 100%
);
}
body.dark-mode #services,
body.dark-mode #projects,
body.dark-mode #process,
body.dark-mode #blog,
body.dark-mode #tech {
    background: linear-gradient(
        135deg,
        #121212,
        #1a1a1a,
        #121212
    );
}
section:not(#home):not(#contact) {
    position: relative;
}

section:not(#home):not(#contact)::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        rgba(90, 83, 224, 0.35),
        transparent
    );
}

  


 
.service-card {
    position: relative;
    overflow: hidden;
    transition:
        transform 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275),
        box-shadow 0.45s ease;
}

.service-card:hover {
    transform: translateY(-14px) scale(1.04);
    box-shadow:
        0 25px 50px rgba(90, 83, 224, 0.25),
        0 0 0 1px rgba(90, 83, 224, 0.15);
}
.service-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        120deg,
        transparent 30%,
        rgba(255,255,255,0.6),
        transparent 70%
    );
    transform: translateX(-120%);
    transition: transform 0.8s ease;
    pointer-events: none;
}

.service-card:hover::after {
    transform: translateX(120%);
}
.service-icon {
    transition: transform 0.4s ease, filter 0.4s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.25) rotate(-3deg);
    filter: drop-shadow(0 0 14px rgba(90,83,224,0.6));
}
.service-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 15px;
    padding: 2px;
    background: linear-gradient(
        135deg,
        rgba(90,83,224,0.7),
        rgba(255,82,120,0.7)
    );
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.service-card:hover::before {
    opacity: 1;
}

.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(
            rgba(255,255,255,0.75),
            rgba(255,255,255,0.75)
        ),
        var(--bg);
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.1);
    transition: opacity 1.2s ease, transform 8s linear;
}

.hero-slide.active {
    opacity: 1;
    transform: scale(1);
}

/* Dark mode */
body.dark-mode .hero-slide {
    background-image:
        linear-gradient(
            rgba(0,0,0,0.65),
            rgba(0,0,0,0.65)
        ),
        var(--bg);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at top,
        rgba(90,83,224,0.15),
        transparent 60%
    );
    z-index: 2;
}

/* Content */
.hero-content {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 5%;
}

.hero-title {
    font-size: clamp(2.8rem, 7vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
}

.hero-role {
    font-size: 1.4rem;
    color: var(--secondary);
    margin-top: 1rem;
}
/* CANLI HEADER */
header,
.navbar {
    

    background: linear-gradient(
        135deg,
        rgba(255,255,255,0.75),
        rgba(245,247,255,0.65)
    );

    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);

    border-bottom: 1px solid rgba(90,83,224,0.15);
    box-shadow:
        0 15px 35px rgba(0,0,0,0.08);

    transition: all 0.35s ease;
}
 
 #scrollProgress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 9999;
}

.hero-title,
.hero-role,
.hero .btn {
    opacity: 0;
    transform: translateY(30px);
    animation: heroFade 1s ease forwards;
}

.hero-role { animation-delay: 0.3s; }
.hero .btn { animation-delay: 0.6s; }

@keyframes heroFade {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.nav-link.active {
    color: #5a53e0;
    font-weight: 600;
}
#backTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: none;
    background: #5a53e0;
    color: white;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    transition: 0.3s;
}

#backTop.show {
    opacity: 1;
}
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}
 
.glass-logo::after {
    content: "";
    position: absolute;
    inset: -6px;
    border-radius: inherit;

    background: radial-gradient(
        circle,
        rgba(255,209,102,0.35),
        transparent 70%
    );
    opacity: 0.6;
    pointer-events: none;
}
@keyframes navWave {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

nav {
    background-size: 300% 300%;
    animation: navWave 18s ease infinite;
}
nav.shrink {
    animation-duration: 14s;
}
.nav-links a {
    position: relative;
    overflow: hidden;
}
.nav-links a::before {
    content: "";
    position: absolute;
    inset: 0;
     background: radial-gradient(
        circle,
        rgba(255,255,255,0.18),
        transparent 70%
    );
    opacity: 0;
    transform: scale(0.3);
    transition: transform 0.4s ease, opacity 0.4s ease;
}
.nav-links a:hover::before {
    opacity: 1;
    transform: scale(1.6);
}
section.active-section::before {
    content: "";
    position: absolute;
    inset: 0;

    background: radial-gradient(
        circle at top,
        rgba(255,82,120,0.15),
        transparent 70%
    );
    pointer-events: none;
    animation: sectionPulse 6s ease-in-out infinite;
}
section.active-section {
    position: relative;
}
@keyframes sectionPulse {
    0%,100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}
nav {
    opacity: 0.92;
    transition: opacity 0.4s ease;
}
nav.shrink {
    opacity: 1;
}
nav.shrink .glass-logo {
    opacity: 0.95;
}
nav .glass-logo {
    transition: opacity 0.4s ease;
}
body.dark-mode .glass-logo::after {
    background: radial-gradient(
        circle,
        rgba(255,255,255,0.25),
        transparent 70%
    );
}
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;

    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));

    transition: all 0.35s ease;
    box-shadow: 0 12px 30px rgba(90, 83, 224, 0.35);
}

 
.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 45px rgba(90, 83, 224, 0.45);
    filter: brightness(1.05);
}

 
.btn:active {
    transform: translateY(0);
    box-shadow: 0 10px 20px rgba(90, 83, 224, 0.3);
}

 
body.dark-mode .btn {
    box-shadow: 0 12px 30px rgba(255, 255, 255, 0.12);
}
 

 
body.dark-mode {
    background-color: #0B1120;
    color: #E5E7EB;
}

/* Başlıklar */
body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4,
body.dark-mode h5,
body.dark-mode h6 {
    color: #F9FAFB;
}

/* Paragraflar, span, liste */
body.dark-mode p,
body.dark-mode span,
body.dark-mode li {
    color: #D1D5DB;
}

/* Linkler */
body.dark-mode a {
    color: #E5E7EB;
    text-decoration: none;
}

body.dark-mode a:hover {
    color: var(--accent);
}

 

body.dark-mode #home {
    background-color: #0F172A;
}

body.dark-mode #home h1 {
    color: #F9FAFB;
}

body.dark-mode #home p {
    color: #CBD5F5;
}

body.dark-mode #home .btn {
    color: #fff;
    box-shadow: 0 12px 30px rgba(255, 255, 255, 0.12);
}


body.dark-mode nav {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
}

body.dark-mode .nav-links a {
    color: #E5E7EB;
}

body.dark-mode .nav-links a:hover {
    color: var(--accent);
}

body.dark-mode .nav-btn {
    color: #fff;
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
}


body.dark-mode section {
    background-color: #0B1120;
}

body.dark-mode .card,
body.dark-mode .service-card,
body.dark-mode .project-card,
body.dark-mode .blog-card {
    background-color: #111827;
}

body.dark-mode .card p,
body.dark-mode .service-card p,
body.dark-mode .project-card p,
body.dark-mode .blog-card p {
    color: #D1D5DB;
}


body.dark-mode input,
body.dark-mode textarea {
    background-color: #020617;
    color: #E5E7EB;
    border: 1px solid #1E293B;
}

body.dark-mode input::placeholder,
body.dark-mode textarea::placeholder {
    color: #9CA3AF;
}


body.dark-mode footer {
    background-color: #020617;
}

body.dark-mode footer p,
body.dark-mode footer span {
    color: #9CA3AF;
}


body.dark-mode .text-muted {
    color: #9CA3AF;
}

body.dark-mode i,
body.dark-mode svg {
    color: #E5E7EB;
}
 
body.dark-mode #cta {
    background: inherit !important;
}

body.dark-mode section {
    background-color: #0B1120;
}

body.dark-mode #cta .container,
body.dark-mode #cta .row,
body.dark-mode #cta .col {
    background: transparent !important;
}

body.dark-mode #cta::before,
body.dark-mode #cta::after {
    content: none !important;
}

body.dark-mode #cta h1,
body.dark-mode #cta h2 {
    color: #F9FAFB;
}

body.dark-mode #cta p,
body.dark-mode #cta span {
    color: #D1D5DB;
}

html.dark-mode .social-icons a,
body.dark-mode .social-icons a,
html.dark-mode .social a,
body.dark-mode .social a,
html.dark-mode .social-links a,
body.dark-mode .social-links a {
    color: #E5E7EB !important;
}

html.dark-mode .social-icons i,
body.dark-mode .social-icons i,
html.dark-mode .social i,
body.dark-mode .social i {
    color: #E5E7EB !important;
}

html.dark-mode .social-icons svg,
body.dark-mode .social-icons svg,
html.dark-mode .social svg,
body.dark-mode .social svg {
    fill: #E5E7EB !important;
    stroke: #E5E7EB !important;
}

html.dark-mode .social-icons svg *,
body.dark-mode .social-icons svg *,
html.dark-mode .social svg *,
body.dark-mode .social svg * {
    fill: #E5E7EB !important;
    stroke: #E5E7EB !important;
}

html.dark-mode .social-icons a:hover,
body.dark-mode .social-icons a:hover {
    color: var(--accent) !important;
}

html.dark-mode .social-icons a:hover i {
    color: var(--accent) !important;
}

html.dark-mode .social-icons a:hover svg *,
body.dark-mode .social-icons a:hover svg * {
    fill: var(--accent) !important;
    stroke: var(--accent) !important;
}


body.dark-mode {
    background-color: #0B1120;
    color: #E5E7EB;
}

body.dark-mode section {
    background-color: #0B1120;
}

body.dark-mode #cta {
    background: #0B1120 !important;
}



body.dark-mode .social-icon {
    background: #111827 !important;  
    color: #E5E7EB !important;
    box-shadow: 0 10px 25px rgba(0,0,0,0.6);
}

body.dark-mode .social-icon i {
    color: #E5E7EB !important;
}

body.dark-mode .social-icon.linkedin:hover {
    background: #0077b5;
}
body.dark-mode .social-icon.instagram:hover {
    background: #E1306C;
}
body.dark-mode .social-icon.whatsapp:hover {
    background: #25D366;
}
body.dark-mode .social-icon.mail:hover {
    background: var(--secondary);
}
body.dark-mode .social-icon.phone:hover {
    background: var(--primary);
}

body.dark-mode .social-icon:hover i {
    color: #ffffff !important;
}
 
.hamburger i {
  color: #000;
}

 #navbar.scrolled .hamburger i {
  color: #fff;
}
.hamburger i {
  transition: color 0.3s ease;
}

#navbar.scrolled .hamburger:hover i {
  color: #00e5ff;
}
#navbar.scrolled {
  background: linear-gradient(
    135deg,
    rgba(99, 102, 241, 0.85),
    rgba(236, 72, 153, 0.85)
  );
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.25);
}
#navbar.scrolled a {
  color: #ffffff;
  font-weight: 600;
}
#navbar.scrolled a {
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
}

.nav-links a::after {
  background: linear-gradient(90deg, #a78bfa, #f472b6);
}
#navbar.scrolled .lang-btn,
#navbar.scrolled .toggle-btn,
#navbar.scrolled .hamburger i {
  color: #ffffff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
}
#navbar.scrolled a:hover {
  color: #f9fafb;
}
.lang-btn,
.toggle-btn {
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 600;
  background: linear-gradient(135deg, #a78bfa, #f472b6);
  color: #ffffff;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}
.lang-btn:hover,
.toggle-btn:hover {
  transform: translateY(-1px) scale(1.05);
  box-shadow: 0 8px 25px rgba(236, 72, 153, 0.45);
}
 
 
.toggle-btn i {
  font-size: 16px;
}
#navbar.scrolled .toggle-btn i {
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.6));
}
#navbar.scrolled .lang-btn,
#navbar.scrolled .toggle-btn {
  background: linear-gradient(135deg, #a78bfa, #f472b6);
  box-shadow: 0 6px 20px rgba(236, 72, 153, 0.45);
}
body.dark .lang-btn,
body.dark .toggle-btn {
  background: linear-gradient(135deg, #22d3ee, #6366f1);
}
body.dark #navbar.scrolled .lang-btn,
body.dark #navbar.scrolled .toggle-btn {
  background: linear-gradient(135deg, #38bdf8, #818cf8);
}
.toggle-btn i {
  font-size: 16px;
}

#navbar.scrolled .toggle-btn i {
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.6));
}