/*
* Sadece Dizayn - Haupt-CSS Datei
* Autor: AI Assistant
* Zweck: Globales Styling, Responsivität, Animationen, Navbar, Buttons, Sektionen
* Version: 2.1 (Farbanpassung, Button-Optimierung)
*/

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800;900&family=Inter:wght@400;500;600;700&display=swap');

/* --- Global Değişkenler (Renkler, Geçiş Hızları) --- */
:root {
    --primary-color: #086ad7; /* Mavi - Ana vurgu rengi */
    --secondary-color: #28a745; /* Yeşil - İkincil vurgu / hover rengi */
    --accent-color: #6f42c1; /* Mor - Üçüncül vurgu rengi */
    --dark-color: #343a40; /* Koyu gri - Genel metin, koyu arka plan */
    --light-color: #f8f9fa; /* Açık gri - Hafif arka planlar */
    --white-color: #ffffff;
    --text-color: #555; /* Genel paragraf metin rengi */
    --heading-color: #333; /* Başlık metin rengi */
    --transition-speed: 0.3s; /* Genel geçiş hızı */
    --box-shadow-light: 0 4px 10px rgba(0,0,0,0.1);
    --box-shadow-medium: 0 6px 15px rgba(0,0,0,0.15);
}

/* --- Temel HTML Elementleri ve Body Ayarları --- */
html {
    scroll-behavior: smooth; /* Yumuşak kaydırma */
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden; /* Yatay kaydırmayı engellemek için */
    background-color: var(--white-color); /* Genel arka plan */
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    color: var(--heading-color);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
/* Mobil için başlık boyutları @media sorgularında ayarlanacak */

p {
    margin-bottom: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}
a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

section {
    padding: 80px 0; /* Genel bölüm paddingi */
    position: relative;
    overflow: hidden; /* Animasyonlar için */
}

.section-title-underline {
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
    margin-bottom: 30px;
}
.section-title-underline::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* --- Buton Stilleri --- */
.btn {
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-speed) ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white-color);
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--white-color);
    transform: translateY(-2px); /* Hafif yukarı kalkma efekti */
    box-shadow: var(--box-shadow-medium);
}

.btn-light-outline {
    background-color: transparent;
    border-color: var(--white-color);
    color: var(--white-color);
}
.btn-light-outline:hover, .btn-light-outline:focus {
    background-color: var(--white-color);
    color: var(--primary-color);
    border-color: var(--white-color);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-medium);
}

.btn-light {
    background-color: var(--white-color);
    border-color: var(--white-color);
    color: var(--primary-color);
}
.btn-light:hover, .btn-light:focus {
    background-color: var(--light-color);
    border-color: var(--light-color);
    color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-medium);
}

/* --- Navbar --- */
.navbar {
    background-color: transparent;
    transition: background-color var(--transition-speed) ease, padding var(--transition-speed) ease;
    padding-top: 20px;
    padding-bottom: 20px;
    z-index: 1040; /* Navbar Bootstrap'ın varsayılan z-index'ini geçsin */
}
.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98); /* Scroll'da hafif opak beyaz */
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding-top: 10px;
    padding-bottom: 10px;
}

.navbar-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 1.8rem;
    color: var(--white-color) !important; /* Başlangıçta beyaz logo */
    transition: color var(--transition-speed) ease;
}
.navbar.scrolled .navbar-brand {
    color: var(--dark-color) !important; /* Scroll'da koyu logo */
}

.navbar-nav .nav-link {
    color: var(--white-color); /* Başlangıçta beyaz linkler */
    font-weight: 600;
    margin: 0 10px;
    position: relative;
    padding: 0.5rem 0; /* Menü öğelerinin dikey hizalaması */
    transition: color var(--transition-speed) ease;
}
.navbar.scrolled .navbar-nav .nav-link {
    color: var(--dark-color); /* Scroll'da koyu linkler */
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 3px;
    background-color: var(--primary-color);
    bottom: -5px;
    left: 0;
    transition: width var(--transition-speed) ease;
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-item.active .nav-link::after {
    width: 100%;
}
.navbar-nav .nav-link:hover {
    color: var(--primary-color); /* Hover'da renk değişimi */
}
.navbar.scrolled .navbar-nav .nav-link:hover {
    color: var(--primary-color);
}

/* Navbar'daki "Kontakt" butonu */
.navbar-nav .nav-link.btn-primary {
    color: var(--white-color) !important; /* Butonun kendi rengini kullan */
    margin-left: 15px; /* Diğer linklerden ayır */
    padding: 8px 20px; /* Buton paddingini ayarla */
    border-radius: 5px;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    line-height: normal; /* Buton içindeki metin hizasını düzeltir */
}
.navbar-nav .nav-link.btn-primary:hover {
    background-color: var(--secondary-color) !important;
    border-color: var(--secondary-color) !important;
    color: var(--white-color) !important;
    transform: translateY(-1px);
}
.navbar-nav .nav-link.btn-primary::after { /* Butondaki alt çizgiyi kaldır */
    display: none;
}

/* --- Hero Section --- */
#hero {
    min-height: 100vh;
    background-size: cover !important;
    background-position: center !important;
    position: relative;
    display: flex;
    align-items: center;
    color: var(--white-color);
    padding-top: 100px; /* Navbar altından başlasın */
    padding-bottom: 50px;
}
#hero::before { /* Hero'ya hafif koyu bir overlay ekle */
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4); /* Koyu overlay */
    z-index: 0;
}
#hero .container {
    position: relative;
    z-index: 1; /* İçeriğin overlay'in üstünde olmasını sağla */
}

#hero.video-bg video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -1;
    transform: translateX(-50%) translateY(-50%);
    background-size: cover;
    filter: brightness(0.7); /* Video çok parlak olursa karart */
}

#hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 25px;
    color: var(--white-color);
}
#hero p.lead {
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: 40px;
    color: rgba(255,255,255,0.9);
}

/* --- Hero bölümündeki "Mehr erfahren" butonu (Büyüklük ayarı yapıldı) --- */
#hero .btn-mehr-erfahren {
    padding: 10px 25px; /* Daha küçük padding */
    font-size: 1rem; /* Daha küçük font */
    border-radius: 6px; /* Daha küçük border-radius */
}
#hero .btn-mehr-erfahren:hover {
    transform: translateY(-1px); /* Hafif hover efekti */
}

/* --- Stats Section (Sayı Sayıcı) --- */
#stats {
    background-color: var(--light-color);
    padding: 60px 0;
}
.counter-box {
    background-color: var(--white-color);
    padding: 30px 15px;
    border-radius: 10px;
    box-shadow: var(--box-shadow-light);
    transition: transform var(--transition-speed) ease;
    height: 100%; /* Kartların aynı yükseklikte olmasını sağlar */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.counter-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-medium);
}
.counter-value {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}
.counter-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--heading-color);
    text-transform: uppercase;
}

/* --- Leistungen Section --- */
#leistungen .card {
    border: none;
    border-radius: 10px;
    box-shadow: var(--box-shadow-light);
    padding: 30px;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    height: 100%; /* Tüm kartların aynı yükseklikte olmasını sağlar */
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* İçerik dikeyde hizala */
}
#leistungen .card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-medium);
}
#leistungen .card .fas {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}
#leistungen .card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--heading-color);
}
#leistungen .card p {
    font-size: 0.95rem;
    color: var(--text-color);
    flex-grow: 1; /* Paragrafın mümkün olduğunca yer kaplamasını sağlar */
}

/* "Mehr erfahren" link/buton stili (kartların içindeki küçük linkler) */
#leistungen .card a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 18px;
    border-radius: 5px;
    background-color: var(--light-color);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid var(--light-color);
    transition: all var(--transition-speed) ease;
    margin-top: 20px; /* Paragraftan boşluk bırak */
    align-self: flex-start; /* Sola hizala */
}
#leistungen .card a:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}
#leistungen .card a i {
    margin-left: 8px;
    transition: transform var(--transition-speed) ease;
}
#leistungen .card a:hover i {
    transform: translateX(3px);
}


/* --- Portfolio Section --- */
#portfolio {
    background-color: var(--light-color);
}
.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: var(--box-shadow-light);
    height: 250px; /* Örnek yükseklik, ihtiyaca göre ayarlanabilir */
}
.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Resmin alanı doldurmasını sağlar */
    transition: transform 0.4s ease;
}
.portfolio-item:hover img {
    transform: scale(1.05); /* Hover'da hafif büyütme */
}
.portfolio-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0));
    color: var(--white-color);
    padding: 20px;
    transform: translateY(100%); /* Başlangıçta gizli */
    transition: transform 0.4s ease;
}
.portfolio-item:hover .portfolio-info {
    transform: translateY(0); /* Hover'da görünür yap */
}
.portfolio-info h4 {
    color: var(--white-color);
    font-size: 1.2rem;
    margin-bottom: 5px;
}
.portfolio-info p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 0;
}
.btn-portfolio-all {
    background-color: var(--dark-color);
    border-color: var(--dark-color);
    color: var(--white-color);
    padding: 15px 35px;
    font-size: 1.1rem;
}
.btn-portfolio-all:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white-color);
}

/* --- Warum Wir Section --- */
#warum-wir .list-unstyled li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}
#warum-wir .list-unstyled li .fas {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-right: 20px;
    min-width: 30px; /* İkonların aynı hizada kalması için */
    text-align: center;
}
#warum-wir .list-unstyled li h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}
#warum-wir .list-unstyled li p {
    font-size: 0.95rem;
    color: var(--text-color);
}

/* --- Testimonials Section (Slick Carousel) --- */
#testimonials {
    background-color: var(--light-color);
}
#testimonial-slider .slick-slide {
    padding: 15px; /* Slaytlar arasında boşluk */
}
.testimonial-item {
    background-color: var(--white-color);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--box-shadow-light);
    min-height: 320px; /* Testimonial kartlarının yüksekliğini sabitler */
    display: flex !important; /* Slick'in display: block'u ezmek için */
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.testimonial-item img {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 0 5px rgba(0,0,0,0.05); /* Hafif dış gölge */
}
.testimonial-item p {
    font-style: italic;
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.7;
    flex-grow: 1; /* Metnin dikeyde yer kaplaması için */
}
.testimonial-item .quote-icon-left,
.testimonial-item .quote-icon-right {
    color: var(--primary-color);
    font-size: 1.2rem;
    opacity: 0.6;
    margin: 0 5px;
}
.testimonial-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 5px;
}
.testimonial-item h5 {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 0;
}

/* Slick Dots (Navigasyon Noktaları) */
.slick-dots {
    bottom: -40px !important; /* Noktaları biraz daha aşağı al */
}
.slick-dots li button:before {
    font-size: 12px;
    color: var(--dark-color);
    opacity: 0.3;
}
.slick-dots li.slick-active button:before {
    color: var(--primary-color);
    opacity: 1;
}

/* --- Primary Gradient CTA Section (Hero altındaki) --- */
.bg-primary-gradient {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--white-color);
    padding: 60px 0;
}
.bg-primary-gradient h2, .bg-primary-gradient p {
    color: var(--white-color);
}


/* --- FAQ Section --- */
#faq {
    background-color: var(--white-color);
}
.accordion-item {
    border: 1px solid var(--light-color);
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: var(--box-shadow-light);
    overflow: hidden; /* Border radius için */
}
.accordion-header {
    margin-bottom: 0;
}
.accordion-button {
    background-color: var(--white-color);
    color: var(--heading-color);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 20px 25px;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-speed) ease;
}
.accordion-button:not(.collapsed) {
    background-color: var(--primary-color); /* Açıkken arka plan rengi */
    color: var(--white-color); /* Açıkken metin rengi */
    border-bottom: 1px solid var(--primary-color);
    box-shadow: inset 0 -1px 0 rgba(0,0,0,.05);
}
.accordion-button:hover {
    background-color: var(--light-color);
}
.accordion-button:not(.collapsed):hover {
    background-color: var(--primary-color); /* Açıkken hover rengi */
}

.accordion-button i {
    font-size: 1rem;
    margin-left: 15px;
    transition: transform var(--transition-speed) ease;
    color: var(--primary-color); /* İkon rengi */
}
.accordion-button:not(.collapsed) i {
    transform: rotate(180deg);
    color: var(--white-color); /* Açıkken ikon rengi */
}
.accordion-body {
    padding: 20px 25px;
    background-color: var(--light-color);
    border-top: 1px solid var(--light-color);
    font-size: 0.95rem;
    color: var(--text-color);
}

/* --- Mini Contact Form Section --- */
#mini-contact {
    background-color: var(--light-color);
}
.contact-form {
    background-color: var(--white-color);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--box-shadow-medium);
}
.contact-form .form-control {
    border-radius: 8px;
    padding: 12px 15px;
    border: 1px solid var(--light-color);
    margin-bottom: 15px;
    font-size: 1rem;
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
.contact-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(8, 106, 215, 0.25); /* Renk kodu güncellendi */
    outline: none;
}
.contact-form textarea.form-control {
    min-height: 120px;
    resize: vertical;
}
.contact-form button[type="submit"] {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    border-radius: 8px;
}

/* --- Kontakt CTA Section (Alt kısımdaki büyük CTA) --- */
#kontakt-cta {
    background-color: var(--primary-color);
    color: var(--white-color);
    text-align: center;
    padding: 80px 0;
}
#kontakt-cta h3 {
    color: var(--white-color);
    font-size: 2.5rem;
}
#kontakt-cta p.lead {
    color: rgba(255,255,255,0.9);
    font-size: 1.3rem;
    margin-bottom: 40px;
}
#kontakt-cta .btn-lg {
    padding: 15px 40px;
    font-size: 1.2rem;
}
#kontakt-cta .btn-lg i {
    margin-right: 10px;
}

/* --- Footer --- */
footer {
    background-color: var(--dark-color) !important;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}
footer a {
    color: rgba(255,255,255,0.7);
    transition: color var(--transition-speed) ease;
}
footer a:hover {
    color: var(--primary-color);
}
footer h5, footer h6 {
    color: var(--white-color);
    font-weight: 700;
    margin-bottom: 15px;
}
footer .social-links a {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    margin-right: 15px;
    transition: color var(--transition-speed) ease;
}
footer .social-links a:hover {
    color: var(--primary-color);
}
footer hr {
    border-color: rgba(255,255,255,0.1);
    margin-top: 30px;
    margin-bottom: 20px;
}
footer .small {
    font-size: 0.85rem;
}


/* --- Scroll-to-Top Butonu --- */
#scroll-to-top-btn {
    display: none; /* Başlangıçta gizli */
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 1000;
    font-size: 1.5rem; /* İkon boyutu */
    width: 55px;
    height: 55px;
    border-radius: 50%; /* Tamamen yuvarlak olması için */
    background-color: var(--primary-color);
    color: var(--white-color);
    border: none;
    text-align: center;
    display: flex; /* İkonu merkeze almak için */
    justify-content: center;
    align-items: center;
    box-shadow: var(--box-shadow-medium);
    transition: background-color var(--transition-speed) ease, transform 0.2s ease-out;
    cursor: pointer;
}
#scroll-to-top-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}


/* --- Sticky CTA Butonu (Alt Sol) --- */
#sticky-cta-container {
    display: none; /* Başlangıçta gizli */
    position: fixed;
    bottom: 25px;
    left: 25px;
    z-index: 999;
    background-color: var(--dark-color);
    color: var(--white-color);
    padding: 10px 20px;
    border-radius: 8px;
    box-shadow: var(--box-shadow-medium);
    display: flex;
    align-items: center;
    opacity: 0; /* Başlangıçta opaklık 0, animasyonla gösterilecek */
    transform: translateY(20px); /* Alttan gelme efekti için */
    transition: opacity var(--transition-speed) ease, transform var(--transition-speed) ease;
}
#sticky-cta-container.show {
    opacity: 1;
    transform: translateY(0);
}
#sticky-cta-container a {
    color: var(--white-color);
    font-weight: 600;
    margin-right: 15px;
    white-space: nowrap; /* Metnin tek satırda kalmasını sağlar */
}
#sticky-cta-container a:hover {
    color: var(--primary-color);
}
#sticky-cta-container .close-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.7);
    font-size: 1.3rem;
    line-height: 1;
    cursor: pointer;
    margin-left: 10px;
    transition: color var(--transition-speed) ease;
}
#sticky-cta-container .close-btn:hover {
    color: var(--white-color);
}


/* --- Animasyon Sınıfları (Intersection Observer ile tetiklenir) --- */
.animate-on-scroll,
.animate-from-left,
.animate-from-right,
.animate-zoom-in,
.animate-from-bottom {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    transform: translateY(20px); /* Varsayılan yukarı kayma efekti */
}

.animate-from-left {
    transform: translateX(-50px);
}
.animate-from-right {
    transform: translateX(50px);
}
.animate-zoom-in {
    transform: scale(0.9);
}
.animate-from-bottom {
    transform: translateY(50px);
}


/* Animasyon tetiklendiğinde uygulanacak sınıflar */
.animate-on-scroll.is-visible,
.animate-from-left.is-visible,
.animate-from-right.is-visible,
.animate-zoom-in.is-visible,
.animate-from-bottom.is-visible {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* --- Responsif Tasarım (Mobil ve Tablet Uyumluğu) --- */
@media (max-width: 991.98px) { /* Mobil ve tablet boyutları (Bootstrap'ın lg breakpoint'i) */
    section {
        padding: 60px 0; /* Mobil cihazlarda daha az padding */
    }

    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.7rem; }
    .section-title-underline {
        margin-bottom: 20px;
    }
    .section-title-underline::after {
        width: 40px;
        height: 3px;
    }

    /* Navbar Mobil Ayarları */
    .navbar {
        padding: 10px 0;
    }
    .navbar-brand {
        font-size: 1.5rem !important;
        margin-left: 15px;
    }
    .navbar-toggler {
        border: none;
        padding: 0;
        margin-right: 15px; /* Sağdan boşluk */
    }
    .navbar-light .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='%23ffffff' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); /* Başlangıçta beyaz ikon */
    }
    .navbar.scrolled .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='%23343a40' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); /* Scroll'da koyu ikon */
    }

    .navbar-collapse {
        background-color: var(--dark-color); /* Mobil menü arkaplan rengi - Koyu olarak güncellendi */
        padding: 20px 0;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        z-index: 1050;
        border-top: 1px solid rgba(255,255,255,0.1);
        max-height: calc(100vh - 60px); /* Ekran yüksekliğinden navbar yüksekliğini çıkar */
        overflow-y: auto;
    }

    .navbar-nav {
        width: 100%;
    }
    .navbar-nav .nav-item {
        text-align: center;
        margin-bottom: 5px;
    }
    .navbar-nav .nav-link {
        color: var(--white-color) !important;
        font-size: 1.1rem;
        padding: 12px 15px;
        display: block;
    }
    .navbar-nav .nav-link:hover {
        background-color: rgba(255,255,255,0.1);
        color: var(--white-color) !important;
    }
    .navbar-nav .nav-link::after { /* Mobil menüde alt çizgiyi kaldır */
        display: none;
    }

    .navbar-nav .nav-link.btn-primary {
        background-color: var(--primary-color) !important; /* Mobil menüdeki buton rengi */
        border-color: var(--primary-color) !important;
        color: var(--white-color) !important;
        width: 85%;
        margin: 20px auto 10px auto !important;
        display: block;
        padding: 10px 20px;
    }
    .navbar-nav .nav-link.btn-primary:hover {
        background-color: var(--secondary-color) !important;
        border-color: var(--secondary-color) !important;
        transform: none;
        box-shadow: none;
    }

    /* Hero Section Mobil */
    #hero {
        padding-top: 80px; /* Mobil navbar yüksekliğine göre ayarla */
        padding-bottom: 40px;
        min-height: 80vh; /* Mobil cihazlarda biraz daha kısa */
    }
    #hero h1 {
        font-size: 2.5rem;
        margin-bottom: 20px;
    }
    #hero p.lead {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
    #hero .hero-content {
        text-align: center;
    }
    #hero .btn-lg { /* Hero bölümündeki genel butonlar */
        width: 90%;
        margin-left: auto !important;
        margin-right: auto !important;
        margin-bottom: 15px;
        display: block;
    }
    #hero .btn-mehr-erfahren { /* "Mehr erfahren" butonu özel olarak */
        width: auto; /* Otomatik genişlik */
        margin-left: auto;
        margin-right: auto;
        display: inline-block; /* Inline block olarak davranır */
    }
    #hero .btn-lg:last-child {
        margin-bottom: 0;
    }

    /* Stats Section Mobil */
    #stats .counter-box {
        padding: 20px 10px;
        min-height: 140px;
    }
    #stats .counter-box .counter-value {
        font-size: 2.5rem;
    }
    #stats .counter-box .counter-label {
        font-size: 0.95rem;
    }

    /* Leistungen Section Mobil */
    #leistungen .card {
        padding: 25px;
    }
    #leistungen .card .fas {
        font-size: 2.5rem;
        margin-bottom: 15px;
    }
    #leistungen .card h3 {
        font-size: 1.2rem;
    }
    #leistungen .card p {
        font-size: 0.9rem;
    }
    #leistungen .card a {
        padding: 6px 15px;
        font-size: 0.85rem;
    }

    /* Portfolio Section Mobil */
    .portfolio-item {
        height: 220px; /* Mobil portföy item yüksekliği */
    }
    .portfolio-info h4 {
        font-size: 1.1rem;
    }
    .portfolio-info p {
        font-size: 0.85rem;
    }
    .btn-portfolio-all {
        padding: 12px 25px;
        font-size: 1rem;
    }

    /* Warum Wir Section Mobil */
    #warum-wir .list-unstyled li {
        margin-bottom: 20px;
    }
    #warum-wir .list-unstyled li .fas {
        font-size: 1.5rem;
        margin-right: 15px;
    }
    #warum-wir .list-unstyled li h4 {
        font-size: 1.1rem;
    }
    #warum-wir .list-unstyled li p {
        font-size: 0.9rem;
    }

    /* Testimonials Section Mobil */
    #testimonial-slider .slick-slide {
        padding: 10px;
    }
    .testimonial-item {
        padding: 25px;
        min-height: 280px; /* Mobil testimonial yüksekliği */
    }
    .testimonial-item img {
        width: 70px;
        height: 70px;
        margin-bottom: 15px;
    }
    .testimonial-item p {
        font-size: 0.9rem;
    }
    .testimonial-item h4 {
        font-size: 1rem;
    }
    .testimonial-item h5 {
        font-size: 0.8rem;
    }
    .slick-dots {
        bottom: -30px !important;
    }

    /* FAQ Section Mobil */
    .accordion-button {
        font-size: 1rem;
        padding: 15px 20px;
    }
    .accordion-button i {
        font-size: 0.9rem;
    }
    .accordion-body {
        font-size: 0.9rem;
        padding: 15px 20px;
    }

    /* Mini Contact Form Mobil */
    .contact-form {
        padding: 30px;
    }
    .contact-form .form-control {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    .contact-form button[type="submit"] {
        padding: 12px;
        font-size: 1rem;
    }

    /* Kontakt CTA Mobil */
    #kontakt-cta {
        padding: 60px 0;
    }
    #kontakt-cta h3 {
        font-size: 2rem;
    }
    #kontakt-cta p.lead {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
    #kontakt-cta .btn-lg {
        padding: 12px 30px;
        font-size: 1.1rem;
    }

    /* Footer Mobil */
    footer {
        padding-top: 40px;
        padding-bottom: 20px;
    }
    footer h5, footer h6 {
        margin-bottom: 10px;
    }
    footer .social-links a {
        margin-right: 10px;
        font-size: 1.1rem;
    }
    footer hr {
        margin-top: 20px;
        margin-bottom: 15px;
    }
    footer .small {
        font-size: 0.8rem;
    }
}

/* Ekstra küçük cihazlar için (örneğin eski/küçük telefonlar) */
@media (max-width: 575.98px) { /* Bootstrap'ın sm breakpoint'i */
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }

    #hero h1 {
        font-size: 2.2rem;
    }
    #hero p.lead {
        font-size: 1rem;
    }
    
    #sticky-cta-container {
        left: 10px;
        right: 10px;
        width: auto;
        bottom: 10px;
        justify-content: space-between;
        padding: 8px 10px;
        font-size: 0.85rem;
    }
    #sticky-cta-container a {
        margin-right: 8px;
    }
    #sticky-cta-container .close-btn {
        font-size: 1rem;
    }

    #scroll-to-top-btn {
        bottom: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
}