/* =========================================================
   BESA - Modern dinamik tema (gradient + animasyon)
   ========================================================= */

:root {
    /* BESA kurumsal renkler (logodan) */
    --primary: #1F3864;        /* BESA lacivert */
    --primary-2: #2A4A80;      /* lacivert açık */
    --primary-dark: #152848;   /* lacivert koyu */
    --accent: #E37F1A;         /* BESA turuncu */
    --accent-2: #F59A45;       /* turuncu açık */
    --accent-dark: #C66A0F;    /* turuncu koyu */
    --grad-hero: linear-gradient(135deg, #152848 0%, #1F3864 45%, #2A4A80 70%, #E37F1A 100%);
    --grad-soft: linear-gradient(135deg, #eef2f8 0%, #fef3e6 100%);
    --grad-btn: linear-gradient(135deg, #E37F1A 0%, #C66A0F 100%);
    --grad-card: linear-gradient(135deg, #1F3864 0%, #E37F1A 100%);
    --text: #0f172a;
    --text-soft: #475569;
    --muted: #64748b;
    --border: #e2e8f0;
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --shadow-sm: 0 2px 6px rgba(15,23,42,.06);
    --shadow-md: 0 12px 30px rgba(31,56,100,.12);
    --shadow-lg: 0 20px 60px rgba(31,56,100,.20);
    --radius: 14px;
    --radius-lg: 22px;
    --transition: 0.35s cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', 'Segoe UI', Tahoma, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.65;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--primary-2); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 90px 0; position: relative; }
.section-soft { background: var(--bg-soft); }

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    background: var(--grad-card);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.section-desc { color: var(--text-soft); font-size: 1.05rem; max-width: 680px; margin-bottom: 50px; }
.text-center { text-align: center; }
.text-center .section-desc { margin-left: auto; margin-right: auto; }

/* ============== Buttons ============== */
.btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 28px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.98rem;
    border: none;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    text-decoration: none;
}
.btn-primary {
    background: var(--grad-btn);
    color: #fff;
    box-shadow: 0 10px 25px rgba(37, 99, 235, .35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 35px rgba(37, 99, 235, .45); color: #fff; }
.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,.4);
}
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; color: #fff; }
.btn-ghost {
    background: rgba(37, 99, 235, .08); color: var(--primary-2);
}
.btn-ghost:hover { background: var(--primary-2); color: #fff; }
.btn-block { width: 100%; justify-content: center; }

/* ============== Header ============== */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226,232,240,.6);
    transition: box-shadow var(--transition), background var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); background: rgba(255,255,255,.95); }
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 0; gap: 30px;
}
.logo {
    font-size: 1.5rem; font-weight: 800; letter-spacing: -0.02em;
    background: var(--grad-card); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    display: flex; align-items: center; gap: 8px;
}
.logo i { -webkit-text-fill-color: initial; color: var(--primary-2); }

.main-nav { display: flex; gap: 6px; align-items: center; }
.main-nav a {
    color: var(--text);
    padding: 10px 16px;
    border-radius: 10px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition);
    position: relative;
}
.main-nav a:hover, .main-nav a.active { color: var(--primary-2); background: rgba(37, 99, 235, .08); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.lang-switch { display: flex; gap: 4px; background: var(--bg-soft); border-radius: 999px; padding: 4px; }
.lang-switch a {
    padding: 6px 12px; border-radius: 999px;
    font-size: 0.85rem; font-weight: 600; color: var(--muted);
}
.lang-switch a.active { background: var(--grad-btn); color: #fff; }

.menu-toggle {
    display: none;
    background: var(--grad-btn); color: #fff;
    border: none; width: 44px; height: 44px; border-radius: 10px;
    font-size: 1.1rem; cursor: pointer;
}

/* ============== Hero ============== */
.hero {
    position: relative;
    padding: 180px 0 120px;
    background: var(--grad-hero);
    color: #fff;
    overflow: hidden;
}
.hero::before, .hero::after {
    content: '';
    position: absolute; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,.15) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
}
.hero::before { width: 500px; height: 500px; top: -150px; right: -100px; }
.hero::after { width: 400px; height: 400px; bottom: -100px; left: -120px; animation-delay: -4s; }

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.hero-inner {
    position: relative; z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-badge {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(255,255,255,.18);
    border: 1px solid rgba(255,255,255,.25);
    border-radius: 999px;
    font-size: 0.85rem; font-weight: 600;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}
.hero-title {
    font-size: clamp(2.2rem, 4.5vw, 3.6rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 22px;
}
.hero-title span {
    background: linear-gradient(120deg, #F59A45 0%, #E37F1A 100%);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc {
    font-size: 1.1rem; opacity: .92; margin-bottom: 32px; max-width: 540px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero görseli (CSS ile çizilen kart) */
.hero-visual {
    position: relative; height: 420px;
}
.hero-card {
    position: absolute;
    background: rgba(255,255,255,.96);
    color: var(--text);
    border-radius: 20px;
    padding: 22px;
    box-shadow: 0 20px 60px rgba(0,0,0,.25);
    animation: float-card 6s ease-in-out infinite;
}
.hero-card .icon {
    width: 50px; height: 50px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    background: var(--grad-btn); color: #fff;
    font-size: 1.3rem; margin-bottom: 12px;
}
.hero-card h4 { font-size: 1rem; margin-bottom: 4px; }
.hero-card p { font-size: 0.85rem; color: var(--muted); }

.hero-card.c1 { top: 20px; left: 0; width: 230px; }
.hero-card.c2 { top: 130px; right: 0; width: 250px; animation-delay: -2s; }
.hero-card.c3 { bottom: 0; left: 60px; width: 240px; animation-delay: -4s; }

@keyframes float-card {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ============== Stats ============== */
.stats {
    margin-top: -60px; position: relative; z-index: 5;
    background: #fff; border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.stat-item { text-align: center; }
.stat-num {
    font-size: 2.4rem; font-weight: 800;
    background: var(--grad-card);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { color: var(--muted); font-size: 0.95rem; margin-top: 4px; }

/* ============== Cards (services, blog, training) ============== */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cards-grid.col-2 { grid-template-columns: repeat(2, 1fr); }
.cards-grid.col-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: #fff;
    border-radius: var(--radius);
    padding: 30px;
    border: 1px solid var(--border);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: var(--grad-btn); transform: scaleX(0); transform-origin: left;
    transition: transform var(--transition);
}
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: transparent; }
.card:hover::before { transform: scaleX(1); }

.card-icon {
    width: 60px; height: 60px;
    background: var(--grad-soft); color: var(--primary-2);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; margin-bottom: 18px;
    transition: background var(--transition), color var(--transition);
}
.card:hover .card-icon { background: var(--grad-btn); color: #fff; }
.card h3 { font-size: 1.25rem; margin-bottom: 10px; letter-spacing: -0.01em; }
.card p { color: var(--text-soft); font-size: 0.97rem; margin-bottom: 18px; }
.card-link {
    color: var(--primary-2); font-weight: 600; font-size: 0.92rem;
    display: inline-flex; align-items: center; gap: 6px;
}
.card-link i { transition: transform var(--transition); }
.card:hover .card-link i { transform: translateX(5px); }

/* Image card (blog/training) */
.card-image {
    background: #fff; border-radius: var(--radius); overflow: hidden;
    border: 1px solid var(--border);
    transition: transform var(--transition), box-shadow var(--transition);
}
.card-image:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.card-image .img {
    height: 220px; background: var(--grad-card);
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,.4); font-size: 4rem;
    background-size: cover; background-position: center;
    position: relative;
}
.card-image .badge {
    position: absolute; top: 14px; left: 14px;
    background: rgba(255,255,255,.95); color: var(--primary);
    padding: 6px 12px; border-radius: 999px;
    font-size: 0.8rem; font-weight: 600;
}
.card-image .body { padding: 24px; }
.card-image .meta {
    display: flex; gap: 15px; flex-wrap: wrap;
    color: var(--muted); font-size: 0.85rem; margin-bottom: 12px;
}
.card-image .meta i { color: var(--primary-2); margin-right: 4px; }
.card-image h3 { font-size: 1.2rem; margin-bottom: 10px; line-height: 1.4; }
.card-image p { color: var(--text-soft); font-size: 0.93rem; margin-bottom: 14px; }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image {
    height: 460px; border-radius: var(--radius-lg);
    background: var(--grad-card); position: relative; overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.about-image::before {
    content: '\f559'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
    font-size: 12rem; color: rgba(255,255,255,.15);
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.about-features { list-style: none; margin-top: 28px; }
.about-features li {
    padding: 12px 0; display: flex; align-items: flex-start; gap: 14px;
    border-bottom: 1px dashed var(--border);
}
.about-features li:last-child { border-bottom: none; }
.about-features i {
    width: 32px; height: 32px; border-radius: 8px;
    background: var(--grad-soft); color: var(--primary-2);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; font-size: 0.85rem;
}
.about-features strong { display: block; }

/* References slider */
.refs-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.ref-item {
    background: #fff; border: 1px solid var(--border);
    border-radius: var(--radius); padding: 30px;
    text-align: center; transition: all var(--transition);
}
.ref-item:hover { border-color: var(--primary-2); transform: translateY(-5px); box-shadow: var(--shadow-md); }
.ref-item .name {
    font-weight: 700; color: var(--primary); margin-bottom: 4px;
    font-size: 1.05rem;
}
.ref-item .sector { font-size: 0.82rem; color: var(--muted); }

/* Testimonials */
.testimonial {
    background: #fff; border-radius: var(--radius);
    padding: 30px; border: 1px solid var(--border);
    position: relative;
}
.testimonial::before {
    content: '\201C'; font-size: 4rem; color: var(--primary-2);
    position: absolute; top: -10px; left: 20px; opacity: 0.2; font-family: serif;
}
.testimonial p { font-style: italic; color: var(--text-soft); margin-bottom: 16px; }
.testimonial .author { font-weight: 700; color: var(--primary); }
.testimonial .author span { display: block; font-size: 0.82rem; color: var(--muted); font-weight: 400; }

/* CTA */
.cta-block {
    background: var(--grad-hero);
    border-radius: var(--radius-lg);
    padding: 60px 50px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-block::before {
    content: ''; position: absolute; top: -50px; right: -50px;
    width: 200px; height: 200px; border-radius: 50%;
    background: rgba(255,255,255,.1);
}
.cta-block h2 { font-size: 2rem; margin-bottom: 12px; position: relative; }
.cta-block p { opacity: .9; margin-bottom: 28px; position: relative; }
.cta-block .btn-primary {
    background: #fff; color: var(--primary);
}
.cta-block .btn-primary:hover { background: #fff; color: var(--primary-2); transform: translateY(-3px); }

/* ============== Forms ============== */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid.col-1 { grid-template-columns: 1fr; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.97rem;
    transition: all var(--transition);
    background: #fff;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none; border-color: var(--primary-2);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
}
.form-group textarea { min-height: 130px; resize: vertical; }

.alert {
    padding: 14px 18px; border-radius: 10px;
    margin-bottom: 18px; font-size: 0.95rem;
    border-left: 4px solid;
}
.alert-success { background: #ecfdf5; color: #065f46; border-left-color: #10b981; }
.alert-error { background: #fef2f2; color: #991b1b; border-left-color: #ef4444; }

/* ============== Page hero (alt sayfalar) ============== */
.page-hero {
    padding: 150px 0 70px;
    background: var(--grad-hero);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-hero::after {
    content: ''; position: absolute; bottom: -80px; left: 50%; transform: translateX(-50%);
    width: 800px; height: 200px; border-radius: 50%;
    background: radial-gradient(ellipse, rgba(255,255,255,.2) 0%, transparent 70%);
}
.page-hero h1 {
    font-size: 2.8rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 12px;
}
.page-hero p { opacity: .9; max-width: 700px; margin: 0 auto; font-size: 1.1rem; }
.breadcrumb {
    display: flex; gap: 10px; justify-content: center;
    margin-top: 20px; font-size: 0.9rem;
}
.breadcrumb a, .breadcrumb span { color: rgba(255,255,255,.85); }
.breadcrumb a:hover { color: #fff; }

/* ============== Single post / service ============== */
.post-content {
    background: #fff; padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
}
.post-content h2 { font-size: 1.6rem; margin: 24px 0 12px; }
.post-content h3 { font-size: 1.3rem; margin: 20px 0 10px; }
.post-content p { margin-bottom: 14px; line-height: 1.8; }
.post-content ul, .post-content ol { margin: 14px 0 14px 24px; }
.post-content li { margin-bottom: 6px; }

.post-meta-row {
    display: flex; gap: 18px; flex-wrap: wrap;
    color: var(--muted); font-size: 0.9rem; margin-bottom: 24px;
}
.post-meta-row i { color: var(--primary-2); margin-right: 5px; }

/* Sidebar */
.layout-with-sidebar { display: grid; grid-template-columns: 1fr 320px; gap: 30px; }
.sidebar-widget {
    background: #fff; border: 1px solid var(--border);
    border-radius: var(--radius); padding: 24px; margin-bottom: 24px;
}
.sidebar-widget h4 { font-size: 1.05rem; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.sidebar-widget ul { list-style: none; }
.sidebar-widget li { padding: 8px 0; border-bottom: 1px dashed var(--border); }
.sidebar-widget li:last-child { border-bottom: none; }
.sidebar-widget a { color: var(--text); font-size: 0.95rem; display: block; }
.sidebar-widget a:hover { color: var(--primary-2); padding-left: 4px; }

/* Pagination */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 30px; }
.pagination a {
    width: 42px; height: 42px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); border-radius: 10px;
    color: var(--text); font-weight: 600;
    transition: all var(--transition);
}
.pagination a:hover, .pagination a.active {
    background: var(--grad-btn); color: #fff; border-color: transparent;
}

/* ============== Footer ============== */
.site-footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 70px 0 0;
    margin-top: 60px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
}
.footer-col h4 { color: #fff; font-size: 1.05rem; margin-bottom: 20px; }
.footer-col p { font-size: 0.95rem; line-height: 1.8; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: #cbd5e1; font-size: 0.95rem; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact-item {
    display: flex; gap: 12px; align-items: flex-start;
    font-size: 0.95rem; margin-bottom: 14px;
}
.footer-contact-item i {
    width: 36px; height: 36px; flex-shrink: 0;
    background: rgba(37, 99, 235, .15);
    color: var(--accent);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
}
.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.footer-social a {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,.06); color: #fff;
    border-radius: 10px;
    transition: all var(--transition);
}
.footer-social a:hover { background: var(--grad-btn); transform: translateY(-3px); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 24px 0;
    text-align: center;
    font-size: 0.88rem;
    color: #94a3b8;
}

.newsletter-form { display: flex; gap: 8px; margin-top: 14px; }
.newsletter-form input {
    flex: 1;
    padding: 12px 14px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 10px;
    color: #fff;
    font-size: 0.92rem;
}
.newsletter-form input::placeholder { color: #94a3b8; }
.newsletter-form button {
    padding: 12px 18px; background: var(--grad-btn); color: #fff;
    border: none; border-radius: 10px; cursor: pointer; font-weight: 600;
}

/* ============== Animasyonlar ============== */
.fade-in { opacity: 0; transform: translateY(30px); transition: all 0.7s cubic-bezier(.2,.7,.2,1); }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ============== Responsive ============== */
@media (max-width: 992px) {
    .hero-inner, .about-grid, .layout-with-sidebar { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { display: none; }
    .cards-grid, .refs-grid, .cards-grid.col-4 { grid-template-columns: repeat(2, 1fr); }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .section { padding: 60px 0; }
    .section-title { font-size: 1.9rem; }
}
@media (max-width: 640px) {
    .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0;
        flex-direction: column; background: #fff; padding: 20px;
        border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md);
    }
    .main-nav.open { display: flex; }
    .menu-toggle { display: flex; align-items: center; justify-content: center; }
    .cards-grid, .refs-grid, .cards-grid.col-2, .cards-grid.col-4 { grid-template-columns: 1fr; }
    .stats { grid-template-columns: repeat(2, 1fr); padding: 24px; }
    .form-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 2rem; }
    .page-hero h1 { font-size: 2rem; }
    .cta-block { padding: 40px 24px; }
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 56px;
    height: 56px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    box-shadow: 0 4px 16px rgba(37,211,102,.45);
    z-index: 999;
    transition: transform .2s, box-shadow .2s;
    text-decoration: none;
}
.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37,211,102,.6);
    color: #fff;
}