/* Google Font ve Renk Tanımları */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');
@import url("https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css");

:root {
    --font-family: 'Poppins', sans-serif;
    --primary-color: #1e2139;
    --secondary-color: #0052D4;
    --accent-color: #FFC107;
    --gradient-start: #4364F7;
    --gradient-end: #0052D4;
    --text-dark: #343a40;
    --text-light: #f8f9fa;
    --body-bg: #f2f4f8;
}

body {
    font-family: var(--font-family);
    background-color: var(--body-bg);
    color: var(--text-dark);
    line-height: 1.7;
}

h1, h2, h3, h4, h5, h6 { font-weight: 700; }
.section-padding { padding: 100px 0; }
.section-title {
    font-size: 1.1rem; font-weight: 600; color: var(--secondary-color);
    margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 2px;
}
.section-subtitle {
    font-size: 3rem; font-weight: 700; margin-bottom: 4rem;
    color: var(--primary-color); position: relative; padding-bottom: 1rem;
    display: inline-block;
}
.section-subtitle::after {
    content: ''; position: absolute; bottom: 0; left: 50%;
    transform: translateX(-50%); width: 100px; height: 5px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    border-radius: 3px;
}

main { display: block; }
header {
    background: var(--primary-color); box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    padding: 1rem 0; position: sticky; top: 0; z-index: 1000;
}
header .navbar-brand { font-weight: 700; font-size: 1.8rem; color: #fff; }
header .nav-link {
    color: #fff; border-radius: 8px; padding: 10px 20px !important; margin: 0 5px;
    font-weight: 600; text-align: center; transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); border: 2px solid transparent;
}
header .nav-item:nth-child(1) .nav-link { background-color: #e63946; }
header .nav-item:nth-child(2) .nav-link { background-color: #f77f00; }
header .nav-item:nth-child(3) .nav-link { background-color: #43aa8b; }
header .nav-item:nth-child(4) .nav-link { background-color: #118ab2; }
header .nav-link:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15); filter: brightness(1.1); }
header .btn-primary {
    background-color: var(--accent-color); border-color: var(--accent-color); color: var(--text-dark);
    font-weight: 700; border-radius: 50px; padding: 10px 25px; transition: all 0.3s ease;
}
header .btn-primary:hover { transform: scale(1.05); }

.brand-bar { padding: 2rem 0; background-color: #ffffff; border-bottom: 1px solid #e0e0e0; }
.brand-bar .brand-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 1.5rem; align-items: center; }
.brand-bar .brand-item {
    display: block; /* a etiketlerinin div gibi davranması için */
    background-color: var(--primary-color); color: var(--text-light); padding: 1rem;
    border-radius: 8px; text-align: center; font-weight: 600;
    transition: all 0.3s ease-in-out; box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    text-decoration: none; /* Link altı çizgisini kaldır */
}
.brand-bar .brand-item:hover {
    color: var(--text-light); /* Hover durumunda da rengin beyaz kalmasını sağla */
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
    background-color: var(--secondary-color);
}

.hero-section {
    background: url('https://images.unsplash.com/photo-1596048033222-14545def046b?q=80&w=2070&auto=format&fit=crop') no-repeat center center;
    background-size: cover; padding: 100px 0; position: relative;
}
.hero-section::after { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.6); }
.hero-section .container { position: relative; z-index: 2; }
.hero-section .btn-light { padding: 1rem 2.5rem; font-size: 1.2rem; }

.steps-section { background: linear-gradient(to top, #f2f4f8, #ffffff); }
.steps-section .step-card {
    background: #fff; padding: 2.5rem 2rem; border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.07); transition: all 0.4s ease;
    border: 1px solid transparent; position: relative; overflow: hidden;
}
.steps-section .step-card:hover { transform: translateY(-15px); box-shadow: 0 25px 50px rgba(0,0,0,0.1); border-color: var(--secondary-color); }
.steps-section .step-icon-wrapper {
    background: linear-gradient(45deg, var(--gradient-start), var(--gradient-end));
    color: #fff; width: 80px; height: 80px; border-radius: 20px;
    display: flex; align-items: center; justify-content: center;
    font-size: 2.5rem; margin: 0 auto 1.5rem auto;
    box-shadow: 0 10px 20px rgba(67, 100, 247, 0.3); transition: all 0.4s ease;
}
.steps-section .step-card:hover .step-icon-wrapper { transform: rotate(10deg) scale(1.1); }

.services-section { padding-bottom: 60px; }
.service-card {
    border-radius: 15px; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: all 0.3s ease; background: #fff; height: 100%;
}
.service-card:hover { transform: translateY(-10px); box-shadow: 0 15px 40px rgba(0,0,0,0.12); }
.service-card img { height: 220px; object-fit: cover; }
.service-card .card-body { padding: 1.5rem; }
.service-card .card-title { font-weight: 700; font-size: 1.2rem; }

/* Kategori kartı link stili */
.category-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    height: 100%;
}

.category-card-link .service-card {
    transition: all 0.3s ease;
}

.category-card-link:hover .service-card {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}

.why-us-section { background-color: #fff; padding-top: 60px; }
.feature-card {
    padding: 2rem;
    background-color: var(--body-bg);
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}
.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
    border-color: var(--secondary-color);
}
.feature-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}
.feature-card h5 {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.testimonials-section { background: linear-gradient(to bottom, #f2f4f8, #ffffff); }
.testimonial-card {
    background: #fff;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.07);
    height: 100%;
    position: relative;
    text-align: center;
}
.testimonial-quote {
    font-size: 4rem; font-weight: 700; color: var(--secondary-color);
    opacity: 0.2; position: absolute; top: 1rem; left: 2rem; line-height: 1;
}
.testimonial-text {
    font-style: italic; margin-bottom: 1.5rem;
    position: relative; z-index: 2;
}
.testimonial-rating { margin-bottom: 1rem; color: var(--accent-color); }
.testimonial-author { font-weight: 600; color: var(--primary-color); }

.faq-section { background-color: #fff; }
.faq-section .accordion-item {
    margin-bottom: 1rem; border: none; border-radius: 15px !important;
    overflow: hidden; box-shadow: 0 5px 25px rgba(0,0,0,0.07);
}
.faq-section .accordion-button {
    font-weight: 600; color: var(--text-dark); padding: 1.5rem; background-color: #fff;
    display: flex; justify-content: space-between; align-items: center; width: 100%;
}
.faq-section .accordion-button::after { display: none; }
.faq-section .accordion-icon {
    transition: transform 0.3s ease;
    flex-shrink: 0;
}
.faq-section .accordion-button:not(.collapsed) .accordion-icon { transform: rotate(180deg); }
.faq-section .accordion-button:not(.collapsed) {
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end)); color: #fff; box-shadow: none;
}
.faq-section .accordion-button:not(.collapsed) svg { fill: #fff; }
.faq-section .accordion-button:focus { box-shadow: 0 0 0 0.25rem rgba(67, 100, 247, 0.25); }
.faq-section .accordion-body { background: #fff; padding: 0 1.5rem 1.5rem 1.5rem; }

footer {
    background-color: var(--primary-color);
    color: rgba(255,255,255,0.8);
    padding: 80px 0 30px 0;
}
footer h5 { color: var(--accent-color); margin-bottom: 1.5rem; }
footer p, footer a, footer li {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.95rem;
}
footer a:hover { color: #fff; }
footer .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    margin-top: 50px;
}
footer .social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.1);
    color: #fff;
    margin-right: 10px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}
footer .social-links a:hover {
    transform: translateY(-3px);
    text-decoration: none;
}
footer .social-links a.facebook:hover { background-color: #1877F2; }
footer .social-links a.instagram:hover { background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%,#d6249f 60%,#285AEB 90%); }
footer .social-links a.whatsapp:hover { background-color: #25D366; }

/* YENİ: SABİT WHATSAPP BUTONU */
.whatsapp-float {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 1000;
    transition: all 0.3s ease;
}
.whatsapp-float:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}