:root {
    --primary: #2563eb; /* Göze hoş gelen modern ve kurumsal Safir Mavi */
    --primary-hover: #1d4ed8;
    --dark: #0f172a;
    --dark-surface: #1e293b;
    --light: #f8fafc;
    --text: #334155;
    --text-muted: #64748b;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

body {
    font-family: var(--font-body);
    color: var(--text);
    background-color: var(--light);
    line-height: 1.6;
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header & Kibar Tasarlanmış Logo */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px; /* Daha kibar bar yüksekliği */
}

.logo {
    font-family: var(--font-heading);
    font-size: 20px; /* Boyut aşırılıktan çıkarıldı, kibar ve dengeli hale getirildi */
    font-weight: 700;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.logo-main {
    color: var(--dark);
}

.logo-sub {
    color: var(--primary);
    font-weight: 700;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 28px;
}

nav ul li a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 14px;
    transition: color 0.2s;
}

nav ul li a:hover {
    color: var(--primary);
}

/* Swiper Hero */
#hero {
    width: 100%;
    height: 100vh;
    position: relative;
}

.swiper-slide {
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.55) 0%, rgba(15, 23, 42, 0.75) 100%);
}

.slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.slide-content h1 {
    font-family: var(--font-heading);
    font-size: 46px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
    margin-bottom: 20px;
}

.slide-content p {
    font-size: 18px;
    color: #cbd5e1;
    margin-bottom: 32px;
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

.swiper-button-next, .swiper-button-prev {
    color: #ffffff !important;
}

.swiper-pagination-bullet-active {
    background: var(--primary) !important;
}

/* Sections */
.section-padding {
    padding: 90px 0;
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 50px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 32px;
    color: var(--dark);
    margin-bottom: 12px;
}

.section-header p {
    color: var(--text-muted);
}

/* Cards & Icons */
.hizmet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.hizmet-card {
    background: #ffffff;
    padding: 36px;
    border-radius: 14px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.hizmet-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

.icon-box {
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
}

.hizmet-card h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    color: var(--dark);
    margin-bottom: 12px;
    white-space: nowrap; /* Hizmet başlıklarının kaymasını engeller */
}

/* Contact Section */
.bg-dark {
    background-color: var(--dark);
}

.section-header.light h2 {
    color: #ffffff;
}

.section-header.light p {
    color: #94a3b8;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
}

.contact-card {
    background: var(--dark-surface);
    padding: 30px;
    border-radius: 14px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-card i {
    font-size: 26px;
    color: var(--primary);
    margin-bottom: 16px;
}

.contact-card h4 {
    color: #ffffff;
    font-size: 18px;
    margin-bottom: 8px;
}

.contact-card a, .contact-card p {
    color: #94a3b8;
    text-decoration: none;
    font-size: 15px;
}

.contact-card a:hover {
    color: var(--primary);
}

footer {
    background: #090d16;
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

footer p {
    color: #64748b;
    font-size: 14px;
}