/* --- 1. GENEL AYARLAR --- */
:root {
    --bg: #0a0a0a;
    --blue: #007bff;
    --glow-color: rgba(0, 123, 255, 0.5);
    --card: #121212;
    --text-dim: rgba(255, 255, 255, 0.6);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    background: var(--bg);
    color: white;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Global arka plan parçacık alanı */
#bg-particles {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

/* Scroll reveal animasyonları (şimdilik kullanılmıyor; istenirse tekrar eklenebilir) */

/* --- 2. NAVBAR (ÜST MENÜ) --- */
.site-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 5%;
    position: fixed;
    top: 0; 
    left: 0; 
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Hamburger (mobil menü) butonu */
.nav-toggle {
    display: none;
    width: 28px;
    height: auto;
    border-radius: 0;
    border: none;
    background: transparent;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-left: auto;
}
.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 999px;
    transition: transform 0.2s ease, opacity 0.2s ease;
    margin: 3px 0; /* eşit aralıklı üç çizgi */
}

.logo-link img {
    height: 80px; /* Amblem büyüklüğü (eski haline döndü) */
    transition: 0.4s;
}

.logo-link:hover img {
    filter: drop-shadow(0 0 15px var(--blue));
}

/* TR dilinde logoya ekstra glow */
html[lang="tr"] .logo-link:hover img {
    filter: drop-shadow(0 0 30px var(--blue));
}

.menu {
    display: flex;
    list-style: none;
    gap: 15px;
    margin: 0 auto; /* Masaüstünde menüyü ortala */
}

.menu a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 10px 15px;
    border-radius: 8px;
    transition: 0.3s;
}

.menu a:hover {
    color: white;
    text-shadow: 0 0 10px var(--glow-color);
    background: var(--blue);
}

/* Dropdown Ayarları */
.has-dropdown { 
    position: relative; 
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: #161b22;
    min-width: 220px;
    list-style: none;
    padding: 6px 0;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    visibility: hidden;
    opacity: 0;
    transition: 0.3s;
}

.has-dropdown:hover .dropdown {
    visibility: visible;
    opacity: 1;
    transform: translateX(-50%) translateY(5px);
}

.dropdown a { 
    font-size: 0.86rem !important; 
    padding: 7px 12px !important;
    text-transform: none !important; 
    display: block;
}

.dropdown-group {
    position: relative;
}

.dropdown-group::after {
    content: '';
    position: absolute;
    top: 0;
    left: 100%;
    width: 10px;
    height: 100%;
}

.dropdown-group-title {
    color: rgba(255, 255, 255, 0.7) !important;
}

.dropdown-submenu {
    list-style: none;
    position: absolute;
    top: -2px;
    left: calc(100% + 2px);
    min-width: 220px;
    margin: 0;
    padding: 6px 0;
    background: #161b22;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: none;
    z-index: 30;
}

.dropdown-submenu a {
    font-size: 0.85rem !important;
    padding: 7px 12px !important;
    color: rgba(255, 255, 255, 0.7) !important;
    border-left: none;
}

.dropdown-submenu a:hover {
    color: white !important;
}

.dropdown-group:hover .dropdown-submenu {
    display: block;
}

/* --- 3. HERO (GİRİŞ ALANI) --- */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 11% 60px 11%; /* Yatay padding: metni biraz daha ortaya taşı */
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 32px;
    align-items: center;
    width: 100%;
    max-width: 1040px;
}

.hero-content {
    text-align: left;
    margin-left: 50px; /* Yazı bloğunu biraz daha ortaya çek */
}

.hero h4 {
    font-size: 1.25rem; /* Merhaba metnini biraz büyüt */
    color: var(--blue);
    margin-bottom: 8px; /* Merhaba ile isim arası yakınlaştırıldı */
    font-weight: 500;
}

.hero h1 {
    font-size: clamp(2.7rem, 7.4vw, 4.9rem); /* Cansel Karagöz biraz daha büyük */
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px; /* İsim ile açıklama arası mesafe */
}

.glow-text {
    color: var(--blue);
    text-shadow: 0 0 25px var(--glow-color);
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-dim);
    max-width: 600px;
    line-height: 1.6;
    margin-top: 4px;
    margin-bottom: 24px; /* Yazı ile buton arası hafif açıldı */
    margin-left: 0;
    margin-right: 0;
}

.hero-video-wrapper {
    display: flex;
    justify-content: center;
}

.hero-video-link {
    display: inline-block;
    text-decoration: none;
    cursor: pointer;
}

.hero-video-frame {
    position: relative;
    width: 260px;
    height: 420px;
    /* Orijinal tasarımdaki uzun oval form */
    border-radius: 50% / 45%;
    overflow: hidden; /* Oval sınırların dışına taşan her şeyi kes */
    isolation: isolate; /* Safari'deki border-radius / z-index hatalarını önler */
    border: 3px solid var(--blue);
    /* Eski, klasik glow efekti */
    box-shadow: 0 0 35px var(--glow-color);
    transform-style: preserve-3d;
    transition: transform 0.6s ease, box-shadow 0.6s ease, border-color 0.6s ease;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Çerçevenin içine orantılı yerleşsin */
    display: block;
    border-radius: inherit; /* Videonun çerçeve dışına taşmasını engeller */
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* Varsayılan: masaüstünde video göster, mobilde görsel */
.hero-video-desktop {
    display: block;
}
.hero-image-mobile {
    display: none;
}

@media (max-width: 768px) {
    .hero-video-desktop {
        display: none;
    }
    .hero-image-mobile {
        display: block;
    }
}

.hero-video-glow {
    position: absolute;
    inset: -30%;
    background: radial-gradient(circle at 50% 10%, rgba(255,255,255,0.25), transparent 55%);
    mix-blend-mode: screen;
    opacity: 0.35;
    pointer-events: none;
}


html[lang="en"] .hero-video-frame {
    border-color: #98FF98;
    box-shadow: 0 0 40px rgba(152,255,152,0.45);
}

.hero-video-frame:hover {
    transform: translateY(-12px) rotateX(8deg) rotateY(-8deg);
    box-shadow: 0 25px 50px var(--glow-color);
}

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    .hero-content {
        text-align: center;
        margin-left: 0; /* Mobilde sola kaymayı engelle */
    }
    .hero-video-frame {
        width: 220px;
        height: 360px;
        border-radius: 50% / 45%;
    }
}

/* Mobilde iOS/Safari için köşe düzeltmesi ve oran koruması */
@media (max-width: 768px) {
    .hero-video-frame {
        width: 220px;
        aspect-ratio: 13 / 21; /* Sabit oran, yükseklik buna göre hesaplanır */
        height: auto;
        /* mobilde de glow görünsün diye maske kullanma, sadece oval + glow kalsın */
        border-radius: 50% / 45%;
        box-shadow: 0 0 35px var(--glow-color);
    }
}

.btn-primary {
    background: var(--blue);
    color: white;
    padding: 16px 45px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: 0.3s;
    display: inline-block;
    box-shadow: 0 10px 20px var(--glow-color);
}

/* Hero özel: butonu biraz sağa kaydır */
.hero .btn-primary {
    position: relative;
    left: 6px; /* İhtiyaca göre artırılabilir/azaltılabilir */
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px var(--glow-color);
}

.btn-outline {
    background: transparent;
    color: #fff;
    padding: 14px 40px;
    border-radius: 50px;
    border: 1.5px solid rgba(255, 255, 255, 0.45);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.96rem;
    display: inline-block;
    transition: 0.3s;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: #fff;
    transform: translateY(-4px);
}

/* --- 4. MODERN KUTULAR --- */
.modern-services {
    padding: 40px 10% 80px;
}

.services-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.s-card {
    background: var(--card);
    padding: 50px 35px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: 0.4s;
    position: relative;
    overflow: hidden;
    text-align: left;
}

.s-card:hover {
    transform: translateY(-15px);
    border-color: var(--blue);
    box-shadow: 0 15px 35px var(--glow-color);
}

.s-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 3px;
    background: var(--glow-color);
    transition: 0.4s;
    box-shadow: 0 0 15px var(--glow-color);
}

.s-card:hover::after { width: 100%; }

.s-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.s-card p {
    color: #888;
    font-size: 0.95rem;
    line-height: 1.6;
}

.services-cta {
    margin-top: 40px;
    text-align: center;
    display: none; /* Varsayılan: masaüstünde gösterme */
}
.services-cta .btn-primary {
    padding-inline: 40px;
}

/* Ana sayfa bento grid (kullanılmıyor) */

/* DİL DEĞİŞTİRİCİ */
.lang-switcher {
    display: flex;
    gap: 12px;
}
.lang-switcher img {
    width: 22px; height: 22px;
    border-radius: 50%;
    opacity: 0.4; transition: 0.3s;
}
.lang-switcher img.active, .lang-switcher img:hover {
    opacity: 1; transform: scale(1.2);
}

/* --- GENEL MOBİL UYUMLULUK --- */
@media (max-width: 900px) {
    .site-nav {
        padding: 8px 1.2rem;
    }
    .menu {
        gap: 12px;
    }
    .menu a {
        padding: 12px 14px;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .site-nav {
        flex-wrap: wrap;
        gap: 2px;
        padding-top: 4px;
        padding-bottom: 4px;
        padding-inline: 0.9rem;
        min-height: 54px; /* Navbar yüksekliğini biraz daha düşür */
        align-items: center;
    }
    .logo-area {
        flex: 0 0 auto; /* Logo ve hamburger aynı satırda */
        display: flex;
        justify-content: flex-start;
        margin-bottom: 0;
    }
    .logo-link img {
        height: 42px; /* Mobilde logo 40–45 px arası */
    }
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        margin-left: auto; /* Logonun sağında hizala */
    }
    .nav-toggle span {
        width: 18px;
        height: 2px;
    }
    .menu {
        flex: 1 0 100%;
        justify-content: center;
        flex-wrap: wrap;
        display: none; /* nav-open ile açılacak */
    }
    .lang-switcher {
        flex: 1 0 100%;
        justify-content: center;
        display: none;
    }

    /* Tüm ana section’larda yatay padding sabitle (15–20px arası) */
    main > section {
        padding-left: 1.1rem;
        padding-right: 1.1rem;
    }
    .service-detail-page section {
        padding-left: 1.1rem;
        padding-right: 1.1rem;
    }

    .hero {
        min-height: auto;
        padding: 110px 1.8rem 50px 1.8rem;
    }
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .hero-content {
        margin-top: 0;
    }
    .hero h1 {
        font-size: 2.3rem;
        margin-bottom: 14px;
    }
    .hero p {
        font-size: 1rem;
        margin-bottom: 18px;
    }
    .hero-video-frame {
        width: 220px;
        height: 340px;
        border-radius: 50% / 45%;
        margin: 0 auto;
    }

    .services-row { grid-template-columns: 1fr; }
    .s-card {
        padding: 32px 22px;
        text-align: center; /* Mobilde kart içeriğini ortala */
    }

    /* CTA yalnızca tablet/mobilde kartların altında görünsün */
    .services-cta {
        display: block;
    }

    /* Hero'daki CTA butonunu tablet/mobilde gizle, alt kartların altında ayrı CTA göstereceğiz */
    .hero .btn-primary {
        display: none;
    }
}

@media (max-width: 600px) {
    .site-nav {
        padding-inline: 0.8rem;
    }
    .menu a {
        font-size: 0.85rem;
        padding: 10px 14px;
    }

    .hero {
        padding: 100px 1.4rem 32px 1.4rem;
    }
    .hero-inner {
        gap: 20px;
    }
    .hero-content {
        margin-top: 4px;
    }
    .hero h1 {
        font-size: 2.05rem;
    }
    .hero p {
        font-size: 0.95rem;
    }
    .hero-video-frame {
        width: 200px;
        height: 310px;
        border-radius: 50% / 45%;
        margin: 0 auto;
    }
    .modern-services {
        padding: 16px 1.4rem 24px;
    }

    /* Hizmetler alt menüsü varsayılan kapalı olacak, JS ile açılacak */
    .has-dropdown .dropdown {
        display: none;
    }
}



@media (max-width: 768px) {
    /* Menü açıkken göster */
    .site-nav.nav-open .menu {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: 12px;
    }
    .site-nav.nav-open .lang-switcher {
        display: flex;
        margin-top: 8px;
    }
    .site-nav.services-open .has-dropdown .dropdown {
        display: block;
    }
    .site-nav.nav-open {
        background: rgba(10, 10, 10, 0.95); /* Sadece navbarı biraz koyulaştır, tam ekran kaplama olmasın */
    }

    .site-nav.nav-open {
        flex-direction: column;
        align-items: center;
        padding-bottom: 12px;
    }
    .site-nav.nav-open .logo-area {
        order: 1;
        margin-bottom: 6px;
    }
    .site-nav.nav-open .menu {
        order: 2;
    }
    .site-nav.nav-open .lang-switcher {
        order: 3;
        margin-top: 16px; /* Dropdown listesinin hemen altında hizala */
    }

    /* Mobilde Hizmetler dropdown'ı akış içinde olsun, bayrakları aşağıya itsin */
    .site-nav.services-open .has-dropdown .dropdown {
        position: static;
        top: auto;
        left: auto;
        transform: none;
        margin-top: 8px;
        background: rgba(22, 27, 34, 0.98);
        border-radius: 12px;
        width: 100%;
        max-width: 260px;
        z-index: 10;
    }
    .site-nav.services-open .has-dropdown .dropdown a {
        text-align: center;
    }
    .site-nav.services-open .has-dropdown .dropdown-group-title {
        justify-content: center;
        text-align: center;
    }
    .site-nav.services-open .has-dropdown .dropdown-submenu {
        position: static;
        top: auto;
        left: auto;
        min-width: 0;
        padding-left: 0;
        margin-top: 8px;
        background: transparent;
        border: none;
        border-radius: 0;
        display: none;
    }
    .site-nav.services-open .has-dropdown .dropdown-submenu a {
        border-left: none;
        border-bottom: 1px solid rgba(230, 230, 250, 0.24);
        border-radius: 0;
        padding-block: 10px !important;
    }
    .site-nav.services-open .has-dropdown .dropdown-submenu li:last-child a {
        border-bottom: none;
    }
    .site-nav.services-open.digital-open .has-dropdown .dropdown-submenu {
        display: block;
    }
    /* Hizmetler açıldığında bayrakları dropdown'dan biraz daha aşağıda tut */
    .site-nav.services-open .lang-switcher {
        margin-top: 20px;
    }
}
.site-nav.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.site-nav.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
}
.site-nav.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}
/* PRELOADER TASARIMI */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #0a0a0a; /* Sitenin arka plan rengi */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999999; /* En üstte durması için */
    transition: opacity 0.8s ease, visibility 0.8s;
}

.loader-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Preloader içindeki Lottie iframe boyutlarını mobilde küçült */
#preloader iframe {
    max-width: 260px;
    width: 70vw;
    height: auto;
}

@media (max-width: 600px) {
    #preloader iframe {
        max-width: 220px;
    }
}

/* Sayfa yüklendiğinde bu sınıf eklenecek ve ekran kaybolacak */
.preloader-hidden {
    opacity: 0;
    visibility: hidden;
}

/* --- HAKKIMDA SAYFASI DETAY --- */
.about-detail {
    padding: 150px 0 100px;
    overflow: hidden;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr; /* Sol (foto) ve sağ (metin) oranı */
    gap: 100px; /* Fotoğraf ve yazı arasındaki boşluğu artırdık */
    align-items: center;
    max-width: 1100px; /* Sayfanın çok fazla yayılmasını engeller */
    margin: 0 auto; /* Sayfayı ortalar */
}

/* OVAL FOTOĞRAF VE ÇERÇEVE */
.about-visual {
    position: relative;
    display: flex;
    justify-content: center;
}


.image-wrapper {
    width: 350px;
    height: 450px;
    border-radius:50%;/* Üstü oval, altı daha düz şık bir form */
    overflow: hidden;
    border: 3px solid var(--blue);
    box-shadow: 0 0 30px var(--glow-color);
    z-index: 2;
    transition: 0.5s ease;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

.image-wrapper:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 50px var(--glow-color);
}

/* Arkadaki Parlama */
.glow-circle {
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--blue);
    filter: blur(100px);
    opacity: 0.2;
    z-index: 1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* YAZI ALANI */
.about-text-box h1 {
    font-size: 3rem;
    margin: 20px 0;
}

.highlight {
    color: var(--blue);
    text-shadow: 0 0 10px var(--glow-color);
}

.badge {
    background: rgba(0, 0, 0, 0.45);
    color: var(--blue);
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.8rem;
    border: 1px solid var(--blue);
}

/* Bakım & Grafik kartları (paylaşılan) */
.maint-card {
    background: rgba(255, 255, 255, 0.02);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: 0.3s;
    text-align: center;
}

.maint-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--blue);
    transform: scale(1.03);
}

.active-card {
    border-color: rgba(255, 255, 255, 0.05);
    box-shadow: none;
}

.maint-icon {
    font-size: 2.5rem;
    color: var(--blue);
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px var(--glow-color));
}

.maint-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
    color: var(--blue);
}

.maint-card p {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.6;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
}

.stat-card {
    background: #161b22;
    padding: 20px;
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.05);
}

.stat-card h3 {
    color: var(--blue);
    font-size: 1.8rem;
    margin-bottom: 5px;
}
.description {
    color: var(--text-dim);
    line-height: 1.8; /* Satır aralığı ferah olsun */
    margin-bottom: 20px;
    font-size: 1.05rem;
    text-align: justify; /* Yazıyı iki yana yaslayarak daha derli toplu gösterebilirsin */
}

/* Hakkımda sayfasında iletişim butonu – sadece masaüstünde biraz aşağıda dursun */
@media (min-width: 992px) {
    .about-detail .about-text-box .btn-primary {
        margin-top: 24px;
    }
}
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        padding: 0 20px;
    }
    .about-text-box {
        padding-right: 0;
    }
    .description {
        max-width: 100%;
    }
}

.service-hero {
    padding: 120px 0 60px;
    text-align: center;
}

.service-hero h1 {
    font-size: 3.5rem;
    margin: 20px 0;
}

@media (max-width: 768px) {
    .service-hero h1 {
        font-size: 2.5rem; /* SEO Danışmanlığı başlığı mobilde – hafif büyütüldü */
    }
}

@media (max-width: 600px) {
    .service-hero h1 {
        font-size: 2rem; /* Küçük ekranlarda daha dengeli başlık boyutu */
    }
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.process-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--blue);
    padding: 50px 30px;
    border-radius: 30px;
    position: relative;
    transition: 0.4s;
    overflow: hidden;
}

.process-card:hover {
    border-color: var(--blue);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--glow-color);
}

.step-num {
    font-size: 4rem;
    font-weight: 900;
    color: var(--blue);
    position: absolute;
    top: 10px;
    right: 20px;
}

.service-cta {
    text-align: center;
    margin-top: 50px;
}

/* Web tasarım sayfası – scroll ile stack olan kartlar */
.stacked-cards {
    position: relative;
    max-width: 900px;
    margin: 80px auto 160px;
    padding-bottom: 260px; /* Scroll alanı */
}

.stacked-card {
    position: sticky;
    top: 130px; /* Kartın sabitleneceği nokta (navbar altında) */
    background: rgba(255, 255, 255, 0.03);
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px 40px;
    min-height: 360px; /* Daha kareye yakın oran */
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(14px);
    overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
    margin-bottom: 48px;
}

.stacked-card:nth-child(1) { z-index: 3; }
.stacked-card:nth-child(2) { z-index: 4; }
.stacked-card:nth-child(3) { z-index: 5; }

.stacked-card--highlight {
    /* Önceden ikinci kartı ekstra vurguluyordu; şimdi diğer kartlarla aynı görünsün diye boş bırakıldı */
}

.stacked-card::before {
    content: '';
    position: absolute;
    inset: -40%;
    background: radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.18), transparent 55%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.stacked-card:hover {
    transform: translateY(-6px);
    border-color: var(--blue);
    box-shadow: 0 26px 60px var(--glow-color);
}

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

.stacked-step-number {
    position: absolute;
    top: 22px;
    right: 32px;
    font-size: 3.4rem;
    font-weight: 800;
    color: var(--blue);
    opacity: 0.2;
}

.stacked-card-title {
    font-size: 1.8rem;
    margin-bottom: 16px;
    color: var(--blue);
}

.stacked-card-text {
    font-size: 1.05rem;
    color: #9ca3af;
    line-height: 1.6;
    max-width: 620px;
}

.highlight-wd-prefix {
    color: var(--blue);
    text-shadow: 0 0 25px var(--glow-color);
}


@media (max-width: 768px) {
    .stacked-cards {
        max-width: 100%;
        margin: 30px auto 60px;
        padding-bottom: 0;
    }
    .stacked-card {
        position: static;
        margin-bottom: 20px;
    }
    .stacked-step-number {
        font-size: 2.4rem;
        top: 16px;
        right: 20px;
    }
}

/* --- PORTFOLIO SAYFASI / ÇALIŞMALAR --- */
.portfolio-container.no-title {
    padding: 140px 7% 120px;
    max-width: 1100px;
    margin: 0 auto;
}

.portfolio-soon-title {
    color: var(--blue);
    text-shadow: 0 0 24px var(--glow-color);
}

.scroll-sections {
    display: flex;
    flex-direction: column;
    gap: 120px;
}

.scroll-section {
    min-height: 75vh;
    display: flex;
    align-items: center;
}

.projects-section {
    width: 100%;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.project-item {
    display: block;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.project-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.card-glass {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 26px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.65);
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease, background 0.35s ease;
}

.card-glass::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.08), transparent 55%);
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}

.card-glass:hover {
    transform: translateY(-6px);
    border-color: var(--blue);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 0 26px 60px var(--glow-color);
}

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

.image-area {
    border-radius: 18px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16 / 10;
    background: #050505;
}

.image-area img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.02);
    transition: transform 0.45s ease;
}

.card-glass:hover .image-area img {
    transform: scale(1.06);
}

.info-area {
    padding: 18px 8px 4px;
}

.info-area .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--blue);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.info-area h3 {
    margin: 10px 0 6px;
    font-size: 1.15rem;
}

.info-area p {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 6px;
}

/* İçerik içi sekmeli filtre (furkangiray tarzı) */
.portfolio-tabs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 10px;
    margin-bottom: 32px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
}

.portfolio-tab {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    padding: 10px 22px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
}

.portfolio-tab .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0;
    box-shadow: 0 0 0 transparent;
    transition: opacity 0.25s ease, box-shadow 0.25s ease;
}

.portfolio-tab.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--blue);
    box-shadow: 0 0 18px var(--glow-color), inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.portfolio-tab.active .dot {
    opacity: 1;
    box-shadow: 0 0 10px var(--blue);
}

@media (max-width: 640px) {
    .portfolio-tabs {
        flex-wrap: wrap;
        row-gap: 8px;
        padding-inline: 14px;
    }
    .portfolio-tab {
        font-size: 0.75rem;
        padding-inline: 14px;
    }
}

/* Sekmeli minimal portfolyo üst navigasyonu */
.portfolio-nav {
    position: fixed;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    width: min(1100px, 100% - 32px);
    padding: 10px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(18px);
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 900;
}

.portfolio-nav .logo-section {
    display: flex;
    align-items: center;
}

.portfolio-nav .tabs-wrapper {
    display: flex;
    gap: 8px;
    padding: 5px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.portfolio-nav .tab-btn {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    padding: 8px 18px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 7px;
    transition: color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
}

.portfolio-nav .tab-btn .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0;
    box-shadow: 0 0 0 transparent;
    transition: opacity 0.25s ease, box-shadow 0.25s ease;
}

.portfolio-nav .tab-btn.active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--blue);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06), 0 0 18px var(--glow-color);
    transform: translateY(-1px);
}

.portfolio-nav .tab-btn.active .dot {
    opacity: 1;
    box-shadow: 0 0 10px var(--blue);
}

.lang-switcher.compact {
    display: flex;
    gap: 6px;
}

.lang-switcher.compact .lang-item img {
    width: 20px;
    height: 20px;
    border-radius: 999px;
}

/* Sabit sanal asistan bileşeni */
.assistant-widget {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1800;
}

/* Mobil menü açıkken asistan ve diğer sabit öğeleri geri planda tut */
.site-nav.nav-open ~ .assistant-widget {
    opacity: 0;
    pointer-events: none;
}

.assistant-toggle {
    width: auto;
    height: auto;
    padding: 0;
    border-radius: 0;
    border: none;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #fff;
    box-shadow: none;
    backdrop-filter: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    animation: assistant-float 3.4s ease-in-out infinite;
}

html[lang="tr"] .assistant-toggle {
    box-shadow: none;
}

html[lang="en"] .assistant-toggle {
    box-shadow: none;
}

.assistant-toggle i {
    font-size: 1.4rem;
}

.assistant-toggle:hover {
    transform: translateY(-3px) scale(1.03);
}

/* Asistan etiket pill'i */
.assistant-label {
    position: absolute;
    right: 70px;
    bottom: 10px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(10, 10, 10, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #ddd;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    backdrop-filter: blur(12px);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.assistant-label span {
    font-weight: 600;
}

/* Hover tooltip */
.assistant-tooltip {
    position: absolute;
    right: 70px;
    bottom: 54px;
    max-width: 200px;
    padding: 6px 10px;
    border-radius: 8px;
    background: rgba(15, 15, 20, 0.96);
    color: #ccc;
    font-size: 0.78rem;
    opacity: 0;
    transform: translateY(4px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.assistant-tooltip::after {
    content: '';
    position: absolute;
    right: 8px;
    bottom: -6px;
    border-width: 6px 6px 0 6px;
    border-style: solid;
    border-color: rgba(15, 15, 20, 0.96) transparent transparent transparent;
}

.assistant-widget:hover .assistant-tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* Açılış balonu */
.assistant-intro {
    position: absolute;
    right: 70px;
    bottom: 80px;
    max-width: 230px;
    padding: 8px 12px;
    border-radius: 14px;
    background: rgba(15, 15, 20, 0.98);
    color: #eee;
    font-size: 0.8rem;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.7);
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.assistant-intro.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

@keyframes assistant-float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
    100% { transform: translateY(0); }
}

.assistant-panel {
    position: absolute;
    right: 0;
    bottom: 70px;
    width: min(320px, 90vw);
    border-radius: 22px;
    padding: 14px 16px 16px 16px;
    background: rgba(10, 10, 15, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 26px 60px rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(18px);
    opacity: 0;
    transform: translateY(16px) scale(0.98);
    pointer-events: none;
    transition: opacity 0.28s ease, transform 0.28s ease;
}

.assistant-widget.assistant-open .assistant-panel {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.assistant-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

.assistant-title {
    font-size: 0.9rem;
    font-weight: 600;
}

.assistant-close {
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    padding: 4px;
    border-radius: 999px;
    transition: color 0.2s, background 0.2s;
}

.assistant-close:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.assistant-body {
    font-size: 0.88rem;
    color: var(--text-dim);
}

.assistant-messages {
    max-height: 260px;
    min-height: 120px;
    overflow-y: auto;
    padding: 8px 4px 10px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 8px;
}

.assistant-message {
    padding: 7px 11px;
    border-radius: 12px;
    font-size: 0.82rem;
    line-height: 1.5;
    max-width: 92%;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.assistant-message--assistant {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.06);
    color: #f5f5f5;
}

.assistant-message--user {
    align-self: flex-end;
    background: var(--blue);
    color: #fff;
}

.assistant-typing {
    display: none;
    align-items: center;
    gap: 4px;
    margin-bottom: 6px;
}

.assistant-typing span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    animation: assistant-typing 1s infinite ease-in-out;
}

.assistant-typing span:nth-child(2) {
    animation-delay: 0.15s;
}

.assistant-typing span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes assistant-typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.3; }
    30% { transform: translateY(-3px); opacity: 1; }
}

.assistant-form {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
}

.assistant-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    padding: 7px 12px;
    font-size: 0.82rem;
    color: #f5f5f5;
    outline: none;
}

.assistant-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.assistant-input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 1px rgba(0, 123, 255, 0.45);
}

.assistant-send {
    border: none;
    border-radius: 999px;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--blue);
    color: #fff;
    cursor: pointer;
    font-size: 0.86rem;
    flex-shrink: 0;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.assistant-send:hover {
    background: #0b84ff;
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(0, 123, 255, 0.4);
}

.assistant-send:active {
    transform: translateY(0);
    box-shadow: none;
}

@media (max-width: 900px) {
    .portfolio-nav {
        width: calc(100% - 20px);
        padding-inline: 14px;
        gap: 10px;
    }
    .portfolio-nav .tabs-wrapper {
        flex: 1;
        justify-content: center;
    }
    .portfolio-nav .tab-btn {
        padding-inline: 12px;
        font-size: 0.75rem;
    }
    .portfolio-container.no-title {
        padding-inline: 16px;
    }
}

@media (max-width: 640px) {
    .portfolio-nav {
        flex-wrap: wrap;
        row-gap: 10px;
    }
    .portfolio-nav .logo-section {
        flex-basis: 100%;
        justify-content: center;
    }
    .lang-switcher.compact {
        display: none;
    }

    .assistant-widget {
        right: 14px;
        bottom: 14px;
    }

    .assistant-panel {
        width: min(320px, 100vw - 24px);
        right: 0;
        bottom: 64px;
    }

    .assistant-label {
        display: none;
    }

    .assistant-tooltip,
    .assistant-intro {
        right: 4px;
    }
}