:root {
    --color-dark: #121826;
    --color-accent: #4272d7;
    --color-accent-hover: #355cb8;
    --color-text: #a0aec0;
    --color-heading: #e2e8f0;
    --color-surface: #1a2232;
    --color-border: #2d3748;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-dark);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
    background-color: rgba(28, 35, 51, 0.85);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.navbar-brand img {
    transition: transform 0.3s ease;
}
.navbar-brand:hover img {
    transform: scale(1.05);
}
.navbar-nav {
    gap: 0.5rem;
}
.navbar-dark .navbar-nav .nav-link {
    color: #cbd5e0;
    font-weight: 500;
    padding: 8px 16px;
    transition: color 0.3s ease, background-color 0.3s ease;
    border-radius: 6px;
}
.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: #fff;
    background-color: rgba(255,255,255,0.05);
}

/* When user scrolls, make nav links white but keep navbar background unchanged */
.nav-links-scrolled .navbar-nav .nav-link {
    color: #ffffff !important;
}
.nav-links-scrolled .navbar-nav .nav-link:hover,
.nav-links-scrolled .navbar-nav .nav-link.active {
    color: #ffffff !important;
    background-color: rgba(255,255,255,0.04) !important;
}

.navbar .btn {
    padding: 8px 20px;
    font-size: 14px;
}
@media (max-width: 991.98px) {
    .navbar-nav { margin-top: 1rem; margin-bottom: 1rem !important; }
    .navbar .btn { width: 100%; }
}

/* --- Hero Section --- */
.hero-section {
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 0 15px;
}
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(18, 24, 38, 0.9) 0%, rgba(18, 24, 38, 0.5) 60%, rgba(18, 24, 38, 0.3) 100%);
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}
.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5em;
    text-shadow: 0 4px 15px rgba(0,0,0,0.3);
}
.hero-content p.lead {
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    color: var(--color-text);
    margin-bottom: 1.5em;
}
.btn-primary {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}
.btn-primary:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

/* --- Genel Section Ayarları --- */
.section-padding {
    padding: 80px 0;
}
.section-title {
    text-align: center;
    margin-bottom: 60px;
}
.section-title h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-heading);
}
.section-title p.lead {
    font-size: 1.2rem;
    color: var(--color-text);
    max-width: 600px;
    margin: 0 auto;
}

/* --- Hizmet Kartları --- */
.service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    height: 100%;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    border-color: var(--color-accent);
}
.service-card__icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: var(--color-accent);
    color: #fff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}
.service-card__icon i {
    display: block;
    line-height: 1;
}
.service-card__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-heading);
}
.service-card__text {
    color: var(--color-text);
    font-size: 0.95rem;
    line-height: 1.6;
}

.service-card--modern {
    position: relative;
    display: block;
    min-height: 280px;
    border-radius: 16px;
    overflow: hidden;
    padding: 0;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background-color: var(--svc-bg-color, #2f4368);
    background-image: none;
    background-size: cover;
    background-position: center;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.25);
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.service-card--modern.service-card--has-image {
    background-color: var(--svc-bg-color, #2f4368);
    background-image: var(--svc-bg-image, none);
    background-size: cover;
    background-position: center;
}

.service-card--modern .service-card__shade {
    position: absolute;
    inset: 0;
    background: rgba(8, 12, 22, 0.22);
}

.service-card--modern:not(.service-card--has-image) .service-card__shade {
    background: rgba(8, 12, 22, 0.16);
}

.service-card--modern.service-card--has-image .service-card__shade {
    background: rgba(8, 12, 22, 0.42);
}

.service-card--modern .service-card__content {
    position: relative;
    z-index: 1;
    height: 100%;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.service-card--modern .service-card__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 18px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card--modern .service-card__title {
    color: #f8fafc;
    margin-bottom: 10px;
}

.service-card--modern .service-card__text {
    color: rgba(226, 232, 240, 0.9);
    margin-bottom: 0;
}

.service-card--modern.service-card--text-dark .service-card__title {
    color: #0f172a;
}

.service-card--modern.service-card--text-dark .service-card__text {
    color: rgba(15, 23, 42, 0.86);
}

.service-card--modern.service-card--text-dark .service-card__icon {
    background: rgba(15, 23, 42, 0.12);
    border-color: rgba(15, 23, 42, 0.18);
    color: #0f172a;
}

.service-card--modern.service-card--text-light .service-card__icon {
    color: #f8fafc;
}

.service-card__cta {
   
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #f8fafc;
    opacity: 0.95;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(15, 23, 42, 0.24);
    backdrop-filter: blur(2px);
    transition: transform 0.25s ease, opacity 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.service-card--modern.service-card--text-dark .service-card__cta {
    color: #0f172a;
    border-color: rgba(15, 23, 42, 0.28);
    background: rgba(255, 255, 255, 0.4);
}

.service-card--modern:hover {
    transform: translateY(-10px);
    border-color: rgba(66, 114, 215, 0.65);
    box-shadow: 0 22px 44px rgba(9, 12, 24, 0.42);
}

.service-card--modern:hover .service-card__cta {
    transform: translateX(4px);
    opacity: 1;
    border-color: rgba(255, 255, 255, 0.65);
    background: rgba(15, 23, 42, 0.38);
}

/* --- Hakkımızda Bölümü --- */
#hakkimizda p {
    line-height: 1.7;
}

/* --- İletişim Formu --- */
.contact-form .form-group {
    margin-bottom: 1.5rem;
}
.contact-form .form-control {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-heading);
    border-radius: 8px;
    padding: 12px 15px;
    font-size: 0.95rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.contact-form .form-control:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(66, 114, 215, 0.2);
    background-color: var(--color-surface);
    color: #fff;
}
.contact-form .form-control::placeholder {
    color: var(--color-text);
}

/* --- Harita --- */
.map-container {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.map-container iframe {
    filter: grayscale(1) invert(0.9) contrast(0.9);
}

/* --- Footer --- */
.site-footer {
    background: var(--color-dark);
    border-top: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 40px 0;
    font-size: 0.9rem;
}
.site-footer p {
    margin: 0;
}
.site-footer .navbar-brand {
    opacity: 0.8;
}
.site-footer .nav-link {
    padding: 4px 0;
}
.footer-socials {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.footer-social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #e2e8f0;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.footer-social-link:hover {
    transform: translateY(-2px);
    color: #ffffff;
    border-color: rgba(66, 114, 215, 0.7);
    background: rgba(66, 114, 215, 0.25);
}
.footer-legal-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 0.84rem;
}
.footer-legal-links a {
    color: rgba(226, 232, 240, 0.9);
    text-decoration: none;
    transition: color 0.2s ease;
}
.footer-legal-links a:hover {
    color: #ffffff;
}
.footer-legal-sep {
    color: rgba(148, 163, 184, 0.8);
}

@media (max-width: 767.98px) {
    .site-footer .text-md-end {
        text-align: left !important;
        margin-top: 1rem;
    }
}

/* İletişim Formu */
.contact-form .form-group {
    margin-bottom: 1.5rem;
}
.contact-form .form-control {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 15px;
    font-size: 0.95rem;
    transition: border-color 0.3s ease;
}
.contact-form .form-control:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(66, 114, 215, 0.15);
}
.contact-form .btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: background-color 0.3s ease;
}
.contact-form .btn-primary:hover {
    background-color: #355cb8;
    border-color: #355cb8;
}

/* Harita */
.map-container {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}