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

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f3f4f6;
    color: #111827;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

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

/* TOP BAR */

.top-bar {
    background: linear-gradient(90deg, #2563eb, #f97316, #10b981);
    color: #0f172a;
    font-size: 0.9rem;
}

.top-bar-text {
    font-weight: 600;
}

.top-bar-call {
    font-weight: 700;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(248, 250, 252, 0.7);
    border: 1px solid rgba(15, 23, 42, 0.15);
}

/* HEADER */

.main-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(248, 250, 252, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.6);
}

.main-header .container {
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
}

.logo-wrap img {
    height: 42px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.25rem;
    align-items: center;
    font-size: 0.95rem;
}

.main-nav a {
    color: #0f172a;
    font-weight: 500;
    position: relative;
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #f97316, #10b981);
    transition: width 0.2s ease;
}

.main-nav a:hover::after {
    width: 100%;
}

/* Dil anahtarı */

.lang-switch-group {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
    padding: 2px;
    border-radius: 999px;
    background: #e5e7eb;
}

.lang-btn {
    font-size: 0.8rem;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    font-weight: 600;
    color: #0f172a;
}

.lang-btn.lang-active {
    background: #0f172a;
    color: #f9fafb;
}

.nav-toggle {
    background: none;
    border: none;
    color: #0f172a;
    font-size: 1.6rem;
    display: none;
    cursor: pointer;
}

/* HERO */

.hero-section {
    padding: 2.8rem 0 3rem;
    color: #f9fafb;
    background: linear-gradient(135deg, #0f172a, #1d4ed8);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 2.5rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-text p {
    font-size: 1rem;
    color: #e5e7eb;
    margin-bottom: 1.25rem;
}

.hero-seo {
    font-size: 0.9rem;
    color: #e5e7eb;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.1rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
}

.primary-btn {
    background: radial-gradient(circle at 10% 20%, #f97316, #e11d48);
    color: #0f172a;
    box-shadow: 0 0 16px rgba(248, 250, 252, 0.7);
}

.secondary-btn {
    background: rgba(15, 23, 42, 0.85);
    color: #e5e7eb;
    border: 1px solid rgba(148, 163, 184, 0.7);
}

.hero-side-box {
    background: radial-gradient(circle at top, #1d4ed8, #0f172a);
    border-radius: 1.25rem;
    padding: 1.5rem 1.4rem;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.7);
}

.hero-side-box h2 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: #e5e7eb;
}

.hero-side-box ul {
    list-style: none;
    margin-bottom: 0.75rem;
}

.hero-side-box li {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: #e5e7eb;
    font-size: 0.95rem;
    padding: 0.25rem 0;
}

.hero-side-box span {
    font-size: 1.1rem;
}

.link-underline {
    font-size: 0.9rem;
    color: #bfdbfe;
    text-decoration: underline;
}

/* SECTIONS GENEL */

.section {
    padding: 3rem 0;
    background: #f9fafb;
}

.section-alt {
    background: #eef2ff;
}

.section h2 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: #0f172a;
}

.section p {
    font-size: 0.98rem;
    line-height: 1.7;
    color: #111827;
}

.feature-grid,
.service-grid,
.areas-grid,
.contact-grid {
    margin-top: 1.4rem;
    display: grid;
    gap: 1.25rem;
}

.feature-grid {
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.service-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

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

.feature-card,
.service-card {
    background: #ffffff;
    border-radius: 1rem;
    padding: 1.1rem 1rem;
    box-shadow: 0 12px 25px rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.feature-card h3,
.service-card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.45rem;
    color: #111827;
}

.feature-card p,
.service-card p {
    font-size: 0.95rem;
}

.areas-list {
    list-style: none;
    padding-left: 0;
}

.areas-list li {
    padding: 0.25rem 0;
    font-size: 0.95rem;
}

.areas-seo {
    margin-top: 1.1rem;
    font-size: 0.9rem;
    color: #4b5563;
}

/* FAQ */

.faq-list {
    margin-top: 1.2rem;
    display: grid;
    gap: 0.75rem;
}

details {
    background: #ffffff;
    border-radius: 0.75rem;
    padding: 0.7rem 0.9rem;
    border: 1px solid rgba(148, 163, 184, 0.3);
    cursor: pointer;
}

summary {
    font-weight: 600;
    list-style: none;
}

summary::-webkit-details-marker {
    display: none;
}

details[open] {
    border-color: #2563eb;
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.1);
}

details p {
    padding-top: 0.4rem;
    font-size: 0.93rem;
}

/* CONTACT */

.contact-section {
    background: #0f172a;
    color: #e5e7eb;
}

.contact-grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 1.8rem;
}

.contact-section h2,
.contact-section h3 {
    color: #f9fafb;
}

.contact-section p {
    color: #e5e7eb;
}

.contact-box {
    margin-top: 0.8rem;
    background: rgba(15, 23, 42, 0.9);
    border-radius: 1rem;
    padding: 0.9rem 1rem;
    border: 1px solid rgba(148, 163, 184, 0.6);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.2rem 0;
    font-size: 0.95rem;
}

.contact-item a {
    color: #bfdbfe;
    text-decoration: underline;
}

.contact-note {
    background: radial-gradient(circle at top, #16a34a, #022c22);
    border-radius: 1rem;
    padding: 1rem 1.1rem;
    box-shadow: 0 15px 30px rgba(34, 197, 94, 0.15);
    font-size: 0.95rem;
}

/* MOBİL ALT CTA BAR */

.mobile-cta-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(90deg, #22c55e, #f97316);
    padding: 0.45rem 0.7rem;
    display: flex;
    justify-content: center;
    gap: 0.55rem;
    z-index: 998;
}

.mobile-cta-bar .btn {
    flex: 1;
    max-width: 240px;
    font-size: 0.9rem;
}

/* BACK TO TOP */

.back-to-top {
    position: fixed;
    right: 1rem;
    bottom: 3.4rem;
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 999px;
    border: none;
    background: #2563eb;
    color: #f9fafb;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.6);
    display: none;
    z-index: 997;
}

/* ANİMASYONLAR */

.blink {
    animation: blinkGlow 1.1s ease-in-out infinite alternate;
}

@keyframes blinkGlow {
    from {
        transform: translateY(0);
        box-shadow: 0 0 8px rgba(248, 250, 252, 0.7);
        filter: saturate(1);
    }
    to {
        transform: translateY(-1px);
        box-shadow: 0 0 18px rgba(248, 250, 252, 1);
        filter: saturate(1.25);
    }
}

/* RESPONSIVE */

@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-nav {
        position: absolute;
        inset: 56px 0 auto 0;
        background: #f9fafb;
        border-bottom: 1px solid rgba(148, 163, 184, 0.4);
        display: none;
    }

    .main-nav.open {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.6rem 1.25rem 0.9rem;
        gap: 0.6rem;
    }

    .nav-toggle {
        display: block;
    }

    .top-bar-text {
        display: none;
    }
}