/* --- golgelendirme-sistemleri.css (V10.1 - SEO+FAQ UI FIX) --- */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800&display=swap');

:root {
    --color-kale-navy: #002e5b;
    --color-kale-blue: #00aeef;
    --color-white: #ffffff;

    /* FAQ soft palette */
    --faq-border: #e6eef6;
    --faq-hover-bg: #f3f9ff;
    --faq-active-bg: #eaf6ff;
}

body, .page-main-content { font-family: 'Poppins', sans-serif !important; }

/* 1. SLIDER (YAZI İNCELTİLDİ) */
.page-slider { position: relative; width: 100%; height: 450px; overflow: hidden; background: #1a1e23; }
.page-slider img { width: 100%; height: 100%; object-fit: cover; opacity: 0.85; }
.slider-caption { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: #fff; z-index: 5; }
.slider-caption h1 {
    font-size: clamp(28px, 5vw, 48px); font-weight: 600 !important; letter-spacing: 2px;
    margin-bottom: 5px; text-transform: uppercase; text-shadow: 2px 2px 10px rgba(0,0,0,0.6);
}
.slider-caption p { font-size: 18px; opacity: 0.95; font-weight: 400; }

/* 2. ANA BAŞLIK */
.main-title { color: var(--color-kale-navy); font-weight: 800; font-size: 36px; }
.header-line { width: 120px; height: 3px; background: var(--color-kale-blue); margin: 15px auto; border-radius: 2px; }

/* 3. MENÜ KUTULARI (H3 VE OVERLAY RESTORE EDİLDİ) */
.container-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.app-card {
    position: relative; height: 380px; border-radius: 15px; overflow: hidden;
    text-decoration: none; display: block; box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.4s ease;
}
.app-card:hover { transform: translateY(-10px); }
.card-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: 0.8s; z-index: 1; }
.app-card:hover .card-bg { transform: scale(1.1); }

/* Uygulamalar Sayfası Tarzı Tam Karartma */
.card-overlay {
    position: absolute; inset: 0; z-index: 2;
    background: linear-gradient(to top, rgba(0,46,91,0.85) 0%, rgba(0,46,91,0.2) 100%);
}

/* Merkezi H3 Başlık Düzeni */
.card-content {
    position: absolute; inset: 0; z-index: 3;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 35px; text-align: center;
}
.card-content h3 {
    color: #fff; font-size: 23px; font-weight: 800; text-transform: uppercase;
    margin-bottom: 25px; background: rgba(0, 0, 0, 0.4); padding: 10px 15px; width: 100%;
}
.btn-text {
    background: var(--color-kale-blue) !important; color: #fff !important;
    padding: 12px 28px; border-radius: 50px; font-size: 13px; font-weight: 700; transition: 0.3s;
}
.app-card:hover .btn-text { background: #fff !important; color: var(--color-kale-navy) !important; }

/* 4. TEKNİK MAKALE */
.technical-guide-section .content-block { margin-bottom: 60px; }
.technical-guide-section h2 { color: var(--color-kale-navy); font-size: 28px; font-weight: 800; margin-bottom: 25px; border-left: 6px solid var(--color-kale-blue); padding-left: 20px; }
.technical-guide-section p { font-size: 17.5px; color: #444; line-height: 1.85; text-align: justify; }

/* 5. FAQ AKORDİYON (SOFT + PLUS/MİNUS + NO BLUE FILL) */
.accordion-item {
    margin-bottom: 15px;
    border: 1px solid var(--faq-border);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
}

.accordion-header {
    width: 100%;
    padding: 20px 54px 20px 26px; /* right space for icon */
    text-align: left;
    background: #fff;
    border: none;
    outline: none;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-kale-navy);
    cursor: pointer;
    transition: background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
    position: relative;
}

.accordion-header::after {
    content: "+";
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    border-radius: 999px;
    border: 1px solid rgba(0,174,239,0.35);
    display: grid;
    place-items: center;
    color: var(--color-kale-blue);
    font-size: 18px;
    font-weight: 800;
    background: #fff;
}

.accordion-header:hover {
    background: var(--faq-hover-bg);
}

.accordion-header.active {
    background: var(--faq-active-bg);
    color: var(--color-kale-navy);
}

.accordion-header.active::after {
    content: "–";
    border-color: rgba(0,174,239,0.55);
    background: #fff;
}

.accordion-body {
    padding: 0 26px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    background: #fff;
}

.accordion-body.open {
    padding: 18px 26px 24px 26px;
    max-height: 1200px;
}

.accordion-body p { font-size: 16px; color: #555; line-height: 1.7; margin: 0; }

/* MOBİL */
@media (max-width: 992px) { .container-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
    .container-grid { grid-template-columns: 1fr; }
    .page-slider { height: 260px; }
    .accordion-header { font-size: 16px; padding: 18px 52px 18px 22px; }
}