/* ============================================================
   GÖNENÇ TEKNOLOJİ - Kurumsal Site CSS
   Renk Paleti: Lacivert (#0d1b2a) + Teknoloji Mavisi (#0077c8)
   ============================================================ */

:root {
    --gt-dark:     #0d1b2a;
    --gt-navy:     #112240;
    --gt-blue:     #0077c8;
    --gt-blue-lt:  #00a3e0;
    --gt-accent:   #00c9ff;
    --gt-gray:     #6b7280;
    --gt-light:    #f4f7fc;
    --gt-white:    #ffffff;
    --gt-border:   #e2e8f0;
    --transition:  all .3s ease;
}

/* ── Genel ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: #1e293b;
    background: #fff;
    line-height: 1.7;
}

a { color: var(--gt-blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gt-blue-lt); }

/* ── Üst Bilgi Çubuğu ────────────────────────────── */
.topbar {
    background: var(--gt-dark);
    color: rgba(255,255,255,.7);
    font-size: .8rem;
    padding: .4rem 0;
}
.topbar-info span { color: rgba(255,255,255,.8); }
.topbar-info i { color: var(--gt-accent); }
.topbar-social a {
    color: rgba(255,255,255,.6);
    margin-left: .75rem;
    font-size: .85rem;
    transition: var(--transition);
}
.topbar-social a:hover { color: var(--gt-accent); }

/* ── Navigasyon ──────────────────────────────────── */
#mainNav {
    background: var(--gt-navy);
    padding: .8rem 0;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,.06);
}
#mainNav.scrolled {
    background: rgba(11,27,50,.97);
    padding: .5rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,.35);
}

/* Logo */
.navbar-brand { display: flex; align-items: center; }
.navbar-logo {
    height: 60px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    background: #fff;
    border-radius: 6px;
    padding: 4px 8px;
    transition: opacity .2s;
}
.navbar-brand:hover .navbar-logo { opacity: .85; }

/* Nav linkleri */
.navbar-nav .nav-link {
    color: rgba(255,255,255,.8) !important;
    font-size: .9rem;
    font-weight: 500;
    padding: .45rem .9rem;
    border-radius: 4px;
    transition: var(--transition);
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #fff !important;
    background: rgba(255,255,255,.1);
}
.navbar-nav .btn-contact {
    background: var(--gt-blue);
    color: #fff !important;
    border-radius: 4px;
}
.navbar-nav .btn-contact:hover { background: var(--gt-blue-lt); }

.navbar-nav .btn-quote {
    background: transparent;
    color: #fff !important;
    border: 1px solid rgba(255,255,255,.45);
    border-radius: 4px;
}
.navbar-nav .btn-quote:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.8); }

/* ── Hero Bölümü ─────────────────────────────────── */
.hero {
    background: linear-gradient(135deg, var(--gt-dark) 0%, var(--gt-navy) 60%, #0a3060 100%);
    min-height: 88vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%230077c8' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
    display: inline-block;
    background: rgba(0,119,200,.25);
    border: 1px solid rgba(0,119,200,.5);
    color: var(--gt-accent);
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: .35rem 1rem;
    border-radius: 20px;
    margin-bottom: 1.5rem;
}
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 1.25rem;
}
.hero h1 span { color: var(--gt-accent); }
.hero p {
    font-size: 1.1rem;
    color: rgba(255,255,255,.75);
    max-width: 560px;
    margin-bottom: 2rem;
}
.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,.1);
}
.hero-stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gt-accent);
    line-height: 1;
}
.hero-stat-label {
    font-size: .82rem;
    color: rgba(255,255,255,.6);
    text-transform: uppercase;
    letter-spacing: .5px;
}
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-shield {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, rgba(0,119,200,.2), rgba(0,119,200,.05));
    border: 1px solid rgba(0,119,200,.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 7rem;
    color: rgba(0,119,200,.5);
    animation: pulse-ring 3s ease-in-out infinite;
}
@keyframes pulse-ring {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0,119,200,.3); }
    50%       { box-shadow: 0 0 0 30px rgba(0,119,200,.0); }
}

/* ── Butonlar ─────────────────────────────────────── */
.btn-gt-primary {
    background: var(--gt-blue);
    color: #fff;
    border: none;
    padding: .8rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: .95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: .5rem;
}
.btn-gt-primary:hover { background: var(--gt-blue-lt); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,119,200,.4); }

.btn-gt-outline {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,.4);
    padding: .8rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: .95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: .5rem;
}
.btn-gt-outline:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.7); color: #fff; }

/* ── Section Başlıkları ───────────────────────────── */
.section-tag {
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gt-blue);
}
.section-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    color: var(--gt-dark);
    line-height: 1.25;
}
.section-subtitle {
    font-size: 1rem;
    color: var(--gt-gray);
    max-width: 560px;
}
.divider {
    width: 50px;
    height: 3px;
    background: var(--gt-blue);
    margin: 1rem 0;
    border-radius: 2px;
}
.divider-center { margin: 1rem auto; }

/* ── Hizmet Kartları (Anasayfa) ──────────────────── */
.services-section { padding: 6rem 0; background: var(--gt-light); }

.service-card {
    background: #fff;
    border: 1px solid var(--gt-border);
    border-radius: 10px;
    padding: 2rem 1.75rem;
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gt-blue), var(--gt-accent));
    transform: scaleX(0);
    transition: var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0,0,0,.1); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: rgba(0,119,200,.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--gt-blue);
    margin-bottom: 1.25rem;
    transition: var(--transition);
}
.service-card:hover .service-icon { background: var(--gt-blue); color: #fff; }
.service-card h5 { font-size: 1rem; font-weight: 700; color: var(--gt-dark); margin-bottom: .5rem; }
.service-card p { font-size: .88rem; color: var(--gt-gray); margin: 0; }

/* ── Neden Biz ───────────────────────────────────── */
.why-section { padding: 6rem 0; }
.why-feature { display: flex; gap: 1.25rem; margin-bottom: 2rem; }
.why-icon {
    flex-shrink: 0;
    width: 48px; height: 48px;
    border-radius: 10px;
    background: rgba(0,119,200,.1);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
    color: var(--gt-blue);
}
.why-feature h6 { font-weight: 700; color: var(--gt-dark); margin-bottom: .3rem; }
.why-feature p { font-size: .88rem; color: var(--gt-gray); margin: 0; }

.why-visual {
    background: linear-gradient(135deg, var(--gt-dark), var(--gt-navy));
    border-radius: 16px;
    padding: 3rem 2.5rem;
    color: #fff;
}
.why-stat { text-align: center; padding: 1.5rem; }
.why-stat-num { font-size: 2.5rem; font-weight: 800; color: var(--gt-accent); }
.why-stat-label { font-size: .82rem; color: rgba(255,255,255,.65); text-transform: uppercase; }

/* ── CTA Bölümü ──────────────────────────────────── */
.cta-section {
    background: linear-gradient(135deg, var(--gt-blue) 0%, #004f8b 100%);
    padding: 5rem 0;
    text-align: center;
}
.cta-section h2 { font-size: 2rem; font-weight: 800; color: #fff; }
.cta-section p { color: rgba(255,255,255,.85); font-size: 1.05rem; }

/* ── Sayfa Hero (İç Sayfalar) ────────────────────── */
.page-hero {
    background: linear-gradient(135deg, var(--gt-dark) 0%, var(--gt-navy) 100%);
    padding: 5rem 0 4rem;
    text-align: center;
    color: #fff;
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; margin-bottom: .5rem; }
.page-hero p { color: rgba(255,255,255,.7); font-size: 1.05rem; margin: 0; }
.breadcrumb-dark .breadcrumb-item a { color: rgba(255,255,255,.6); }
.breadcrumb-dark .breadcrumb-item.active { color: rgba(255,255,255,.9); }
.breadcrumb-dark .breadcrumb-item + .breadcrumb-item::before { color: rgba(255,255,255,.4); }

/* ── Hakkımızda Sayfası ──────────────────────────── */
.about-section { padding: 5rem 0; }
.about-highlight {
    border-left: 4px solid var(--gt-blue);
    padding-left: 1.25rem;
    margin: 2rem 0;
    font-size: 1.05rem;
    color: var(--gt-dark);
    font-style: italic;
}
.value-card {
    text-align: center;
    padding: 2rem 1.5rem;
    border: 1px solid var(--gt-border);
    border-radius: 10px;
    transition: var(--transition);
}
.value-card:hover { border-color: var(--gt-blue); box-shadow: 0 10px 30px rgba(0,119,200,.1); }
.value-icon { font-size: 2.25rem; color: var(--gt-blue); margin-bottom: 1rem; }
.value-card h6 { font-weight: 700; color: var(--gt-dark); }
.value-card p { font-size: .85rem; color: var(--gt-gray); margin: 0; }

/* ── Hizmetler Sayfası ───────────────────────────── */
.hizmet-card {
    border: 1px solid var(--gt-border);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
}
.hizmet-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,.1); }
.hizmet-header {
    background: linear-gradient(135deg, var(--gt-dark), var(--gt-navy));
    padding: 1.75rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.hizmet-header-icon {
    width: 52px; height: 52px;
    background: rgba(0,119,200,.3);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem;
    color: var(--gt-accent);
}
.hizmet-header h5 { color: #fff; font-weight: 700; margin: 0; font-size: 1.05rem; }
.hizmet-body { padding: 1.75rem; }
.hizmet-body p { color: var(--gt-gray); font-size: .9rem; margin-bottom: 1rem; }
.hizmet-list { list-style: none; padding: 0; margin: 0; }
.hizmet-list li {
    font-size: .88rem;
    color: #374151;
    padding: .35rem 0;
    border-bottom: 1px dashed var(--gt-border);
    display: flex;
    align-items: center;
    gap: .6rem;
}
.hizmet-list li:last-child { border: none; }
.hizmet-list li::before { content: '›'; color: var(--gt-blue); font-weight: 700; font-size: 1.1rem; }

/* ── Blog Sayfası ────────────────────────────────── */
.blog-empty {
    text-align: center;
    padding: 5rem 1rem;
}
.blog-empty-icon { font-size: 4rem; color: var(--gt-border); margin-bottom: 1.5rem; }
.blog-empty h4 { color: var(--gt-dark); font-weight: 700; }
.blog-empty p { color: var(--gt-gray); }

/* ── İletişim Sayfası ────────────────────────────── */
.contact-info-card {
    background: var(--gt-light);
    border-radius: 12px;
    padding: 2rem;
}
.contact-item { display: flex; gap: 1rem; margin-bottom: 1.75rem; }
.contact-item:last-child { margin: 0; }
.contact-item-icon {
    flex-shrink: 0;
    width: 46px; height: 46px;
    background: var(--gt-blue);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 1rem;
}
.contact-item-label { font-size: .78rem; text-transform: uppercase; letter-spacing: 1px; color: var(--gt-gray); margin-bottom: .2rem; }
.contact-item-value { font-weight: 600; color: var(--gt-dark); }
.contact-item-value a { color: var(--gt-dark); }
.contact-item-value a:hover { color: var(--gt-blue); }

/* ── Footer ──────────────────────────────────────── */
.site-footer { background: var(--gt-dark); color: rgba(255,255,255,.7); }
.footer-top { padding: 4rem 0 3rem; }
.footer-brand { display: flex; align-items: center; gap: .5rem; }
.footer-desc { font-size: .88rem; line-height: 1.7; }
.footer-heading { color: #fff; font-weight: 700; font-size: .9rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 1rem; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: .5rem; }
.footer-links a { color: rgba(255,255,255,.6); font-size: .88rem; transition: var(--transition); }
.footer-links a:hover { color: var(--gt-accent); padding-left: 4px; }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { display: flex; gap: .75rem; font-size: .88rem; margin-bottom: .85rem; align-items: flex-start; }
.footer-contact i { color: var(--gt-blue); margin-top: .2rem; flex-shrink: 0; }
.footer-contact a { color: rgba(255,255,255,.65); }
.footer-contact a:hover { color: var(--gt-accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 1.25rem 0; font-size: .83rem; }
.footer-social a { color: rgba(255,255,255,.5); margin-left: 1rem; font-size: .9rem; transition: var(--transition); }
.footer-social a:hover { color: var(--gt-accent); }

/* ── Blog Kartları ───────────────────────────────── */
.blog-card {
    background: #fff;
    border: 1px solid var(--gt-border);
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,.1); }
.blog-card-img img {
    width: 100%; height: 200px;
    object-fit: cover;
    display: block;
}
.blog-card-img-placeholder {
    height: 160px;
    background: linear-gradient(135deg, var(--gt-dark), var(--gt-navy));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: rgba(0,119,200,.4);
}
.blog-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.blog-category {
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gt-blue);
    margin-bottom: .6rem;
    display: block;
}
.blog-title { font-size: 1rem; font-weight: 700; margin-bottom: .6rem; line-height: 1.4; }
.blog-title a { color: var(--gt-dark); }
.blog-title a:hover { color: var(--gt-blue); }
.blog-summary { font-size: .85rem; color: var(--gt-gray); flex: 1; margin-bottom: 1rem; }
.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: .8rem;
    color: var(--gt-gray);
    border-top: 1px solid var(--gt-border);
    padding-top: .75rem;
    margin-top: auto;
}
.blog-read-more { color: var(--gt-blue); font-weight: 600; }
.blog-read-more:hover { color: var(--gt-blue-lt); }

/* ── Yardımcılar ──────────────────────────────────── */
.bg-light-gt { background: var(--gt-light); }
section { scroll-margin-top: 70px; }

/* ══ REFERANSLAR KAYAN BANT ══════════════════════════════════════ */
.refs-section {
    padding: 4rem 0;
    background: var(--gt-light);
    border-top: 1px solid var(--gt-border);
    overflow: hidden;
}

/* Kenar solma maskesi */
.refs-track-wrapper {
    position: relative;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
    mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

/* Kayan ray */
.refs-track {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    width: max-content;
    animation: refsScroll 30s linear infinite;
}
.refs-track:hover { animation-play-state: paused; }

@keyframes refsScroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Kart */
.refs-card {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 1.75rem;
    background: #fff;
    border: 1px solid var(--gt-border);
    border-radius: 12px;
    min-width: 160px;
    height: 90px;
    text-decoration: none;
    transition: box-shadow .25s, border-color .25s, transform .25s;
    white-space: nowrap;
}
.refs-card:hover {
    box-shadow: 0 6px 24px rgba(0,119,200,.12);
    border-color: var(--gt-blue);
    transform: translateY(-3px);
}

.refs-logo {
    max-height: 56px;
    max-width: 140px;
    object-fit: contain;
    filter: grayscale(100%) opacity(.6);
    transition: filter .3s;
}
.refs-card:hover .refs-logo {
    filter: grayscale(0%) opacity(1);
}

.refs-name {
    font-size: .9rem;
    font-weight: 700;
    color: var(--gt-dark);
    opacity: .65;
    transition: opacity .3s;
}
.refs-card:hover .refs-name { opacity: 1; color: var(--gt-blue); }