/* ==========================================================================
   DF Yapı — Çelik Konstrüksiyon & Ferforje Tema
   Endüstriyel, güçlü, güven veren tasarım dili
   ========================================================================== */

/* ---------- MARKA RENKLERİ -------------------------------------------- */
:root {
    /* Ana Marka Renkleri — Çelik mavisi + Endüstriyel turuncu */
    --df-navy:      #0d1b2a;   /* Koyu lacivert — gece çeliği */
    --df-steel:     #1a3a5c;   /* Çelik mavisi */
    --df-blue:      #1e5fa8;   /* Canlı mavi */
    --df-orange:    #e85d04;   /* Güçlü turuncu — vurgu */
    --df-orange-lt: #f48c06;   /* Açık turuncu */
    --df-silver:    #8d99ae;   /* Metalik gri */
    --df-light:     #f0f4f8;   /* Açık arka plan */
    --df-white:     #ffffff;

    /* Semantik atama */
    --primary:        var(--df-blue);
    --primary-dark:   var(--df-steel);
    --primary-light:  #4a90d9;
    --primary-50:     #e8f0fb;
    --primary-100:    #c5d8f5;
    --accent:         var(--df-orange);
    --accent-dark:    #c44c02;

    /* Gradyanlar */
    --gradient-hero:    linear-gradient(135deg, var(--df-navy) 0%, var(--df-steel) 60%, #1a4a7a 100%);
    --gradient-steel:   linear-gradient(180deg, var(--df-navy) 0%, var(--df-steel) 100%);
    --gradient-orange:  linear-gradient(135deg, var(--df-orange) 0%, var(--df-orange-lt) 100%);
    --gradient-card:    linear-gradient(145deg, #ffffff 0%, var(--df-light) 100%);

    /* Font */
    --font-sans:    'Plus Jakarta Sans', 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Plus Jakarta Sans', 'Segoe UI', Roboto, sans-serif;

    /* Spacing & Radius */
    --section-py:    clamp(60px, 8vw, 110px);
    --section-py-sm: clamp(40px, 5vw, 70px);
    --radius-sm:  4px;
    --radius:     8px;
    --radius-md:  12px;
    --radius-lg:  16px;

    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
    --shadow:     0 4px 12px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
    --shadow-md:  0 10px 24px rgba(0,0,0,.12), 0 4px 8px rgba(0,0,0,.06);
    --shadow-lg:  0 20px 40px rgba(0,0,0,.14), 0 8px 16px rgba(0,0,0,.06);
    --shadow-steel: 0 8px 32px rgba(30,95,168,.25);
    --shadow-orange: 0 8px 32px rgba(232,93,4,.30);
}

/* ========================================================================
   TEMEL RESET & TİPO
   ======================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-700);
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.25;
    color: var(--df-navy);
}

a { color: var(--df-blue); text-decoration: none; transition: color .2s; }
a:hover { color: var(--df-orange); }

img { max-width: 100%; height: auto; }

/* ========================================================================
   HEADER / NAVBAR
   ======================================================================== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    transition: all .35s ease;
}

/* Top Bar */
.header-top {
    background: var(--df-navy);
    color: rgba(255,255,255,.75);
    font-size: .8125rem;
    padding: .4rem 0;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.header-top a {
    color: rgba(255,255,255,.75);
    transition: color .2s;
    display: inline-flex; align-items: center; gap: .35rem;
}
.header-top a:hover { color: var(--df-orange); }
.header-top i { font-size: .9rem; color: var(--df-orange); }

/* Main Nav */
.header-main {
    background: var(--df-steel);
    box-shadow: 0 2px 20px rgba(0,0,0,.25);
    transition: all .35s ease;
}
.site-header.scrolled .header-main {
    background: rgba(13,27,42,.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.site-header.scrolled .header-top { display: none; }

.navbar-brand {
    display: flex; align-items: center; gap: .75rem;
    color: #fff !important;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -.5px;
    text-decoration: none;
}
.navbar-brand .brand-icon {
    width: 42px; height: 42px;
    background: var(--gradient-orange);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
    color: #fff;
    flex-shrink: 0;
    box-shadow: var(--shadow-orange);
}
.navbar-brand .brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.navbar-brand .brand-name { color: #fff; font-size: 1.3rem; }
.navbar-brand .brand-sub  { color: var(--df-orange-lt); font-size: .625rem; font-weight: 500; text-transform: uppercase; letter-spacing: 1.5px; }

/* Nav Links */
.navbar-nav .nav-link {
    color: rgba(255,255,255,.85) !important;
    font-weight: 600;
    font-size: .8875rem;
    padding: 1.5rem .875rem !important;
    position: relative;
    text-transform: uppercase;
    letter-spacing: .5px;
    transition: color .2s;
}
.navbar-nav .nav-link::after {
    content: '';
    position: absolute; bottom: 0; left: 50%; right: 50%;
    height: 3px;
    background: var(--df-orange);
    transition: left .25s, right .25s;
    border-radius: 3px 3px 0 0;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active { color: #fff !important; }
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after { left: .5rem; right: .5rem; }

/* Dropdown */
.navbar-nav .dropdown-menu {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    background: var(--df-white);
    padding: .5rem;
    min-width: 220px;
    top: 100%;
    margin-top: 0;
    border-top: 3px solid var(--df-orange);
}
.navbar-nav .dropdown-item {
    border-radius: var(--radius);
    padding: .625rem 1rem;
    font-size: .875rem;
    font-weight: 500;
    color: var(--df-navy);
    transition: all .15s;
    display: flex; align-items: center; gap: .5rem;
}
.navbar-nav .dropdown-item:hover {
    background: var(--df-light);
    color: var(--df-orange);
    padding-left: 1.25rem;
}
.navbar-nav .dropdown-item i { color: var(--df-blue); width: 18px; }

/* CTA Button in navbar */
.navbar .btn-cta {
    background: var(--gradient-orange);
    color: #fff !important;
    border: none;
    border-radius: var(--radius);
    padding: .625rem 1.25rem !important;
    font-size: .8rem !important;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
    box-shadow: var(--shadow-orange);
    transition: transform .2s, box-shadow .2s;
    white-space: nowrap;
}
.navbar .btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(232,93,4,.4);
    color: #fff !important;
}
.navbar .btn-cta::after { display: none !important; }

/* Hamburger */
.navbar-toggler {
    border: none;
    padding: .5rem;
    color: #fff;
    font-size: 1.5rem;
}
.navbar-toggler:focus { box-shadow: none; }

/* ========================================================================
   HERO SECTION
   ======================================================================== */
.hero {
    min-height: 100vh;
    background: var(--gradient-hero);
    position: relative;
    display: flex;
    align-items: center;
    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='%23ffffff' fill-opacity='0.03'%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::after {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 120px;
    background: linear-gradient(to top, #fff 0%, transparent 100%);
}

.hero-badge {
    display: inline-flex; align-items: center; gap: .5rem;
    background: rgba(232,93,4,.15);
    border: 1px solid rgba(232,93,4,.35);
    color: var(--df-orange-lt);
    border-radius: var(--radius-full);
    padding: .375rem 1rem;
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}
.hero-badge i { color: var(--df-orange); }

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: #fff;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}
.hero h1 span { color: var(--df-orange); }
.hero p.lead {
    font-size: clamp(.95rem, 2vw, 1.15rem);
    color: rgba(255,255,255,.8);
    margin-bottom: 2rem;
    max-width: 520px;
}

.hero-stats {
    display: flex; gap: 2rem; flex-wrap: wrap;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,.12);
}
.hero-stat .stat-value {
    font-size: 2rem; font-weight: 800; color: var(--df-orange); line-height: 1;
}
.hero-stat .stat-label { font-size: .8rem; color: rgba(255,255,255,.65); text-transform: uppercase; letter-spacing: .5px; }

.hero-img-wrap {
    position: relative;
}
.hero-img-wrap img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 4px solid rgba(255,255,255,.1);
}
.hero-img-badge {
    position: absolute; bottom: -1.5rem; left: -1.5rem;
    background: var(--gradient-orange);
    color: #fff;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    font-weight: 800;
    font-size: .875rem;
    box-shadow: var(--shadow-orange);
    min-width: 140px;
    text-align: center;
}
.hero-img-badge strong { display: block; font-size: 2rem; line-height: 1; }

/* ========================================================================
   SECTION COMMON
   ======================================================================== */
section { padding: var(--section-py) 0; }
section.sm { padding: var(--section-py-sm) 0; }
section.light { background: var(--df-light); }
section.dark {
    background: var(--df-navy);
    color: rgba(255,255,255,.8);
}
section.dark h1, section.dark h2, section.dark h3 { color: #fff; }
section.steel {
    background: var(--gradient-steel);
    color: rgba(255,255,255,.8);
}
section.steel h1, section.steel h2, section.steel h3 { color: #fff; }

.section-badge {
    display: inline-flex; align-items: center; gap: .4rem;
    background: var(--primary-50);
    border: 1px solid var(--primary-100);
    color: var(--df-blue);
    border-radius: var(--radius-full);
    padding: .3rem .875rem;
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .75px;
    margin-bottom: .875rem;
}
.section-badge.orange {
    background: rgba(232,93,4,.1);
    border-color: rgba(232,93,4,.25);
    color: var(--df-orange);
}

.section-title {
    font-size: clamp(1.625rem, 3.5vw, 2.375rem);
    font-weight: 800;
    color: var(--df-navy);
    margin-bottom: .75rem;
}
.section-title span { color: var(--df-orange); }
.section-title.white { color: #fff; }

.section-desc {
    color: var(--gray-500);
    font-size: 1.025rem;
    max-width: 580px;
    margin: 0 auto;
}
.section-desc.light { color: rgba(255,255,255,.7); }

.divider-orange {
    width: 48px; height: 4px;
    background: var(--gradient-orange);
    border-radius: 4px;
    margin: 1rem 0;
}
.divider-orange.center { margin: 1rem auto; }

/* ========================================================================
   BUTTONS
   ======================================================================== */
.btn {
    display: inline-flex; align-items: center; gap: .5rem;
    font-weight: 700;
    border-radius: var(--radius);
    transition: all .25s;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: .9rem;
    padding: .75rem 1.75rem;
    white-space: nowrap;
}
.btn-primary {
    background: var(--gradient-orange);
    color: #fff;
    box-shadow: var(--shadow-orange);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(232,93,4,.4); color: #fff; }

.btn-outline-primary {
    background: transparent;
    color: var(--df-blue);
    border-color: var(--df-blue);
}
.btn-outline-primary:hover { background: var(--df-blue); color: #fff; }

.btn-outline-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,.5);
}
.btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }

.btn-steel {
    background: var(--df-steel);
    color: #fff;
}
.btn-steel:hover { background: var(--df-navy); color: #fff; }

.btn-sm { padding: .5rem 1.125rem; font-size: .8125rem; }
.btn-lg { padding: .875rem 2.25rem; font-size: 1rem; }

.btn i { font-size: 1em; }

/* ========================================================================
   CARDS
   ======================================================================== */
.card-df {
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform .3s, box-shadow .3s;
    border: 1px solid rgba(0,0,0,.04);
    height: 100%;
}
.card-df:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

/* Hizmet Kartı */
.service-card .service-icon {
    width: 60px; height: 60px;
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.625rem;
    color: #fff;
    margin-bottom: 1.25rem;
    background: var(--df-steel);
    box-shadow: var(--shadow-steel);
    flex-shrink: 0;
}
.service-card .card-body { padding: 1.75rem; }
.service-card h3 { font-size: 1.125rem; margin-bottom: .625rem; color: var(--df-navy); }
.service-card p  { color: var(--gray-500); font-size: .9rem; margin-bottom: 1.25rem; }
.service-card .card-link {
    font-size: .8125rem; font-weight: 700;
    color: var(--df-blue);
    display: inline-flex; align-items: center; gap: .35rem;
    text-transform: uppercase; letter-spacing: .5px;
    transition: gap .2s, color .2s;
}
.service-card .card-link:hover { color: var(--df-orange); gap: .6rem; }

/* Ürün Kartı */
.product-card .product-img {
    width: 100%; aspect-ratio: 4/3;
    object-fit: cover;
    background: var(--df-light);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.product-card .product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-card:hover .product-img img { transform: scale(1.05); }
.product-card .product-cat {
    font-size: .7rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .75px; color: var(--df-orange);
    margin-bottom: .375rem;
}
.product-card .card-body { padding: 1.25rem; }
.product-card h3 { font-size: 1rem; margin-bottom: .375rem; }
.product-card .product-meta { font-size: .8rem; color: var(--gray-500); }

/* Referans Kartı */
.reference-card .ref-image {
    width: 100%; aspect-ratio: 16/10; overflow: hidden;
    background: var(--df-light);
}
.reference-card .ref-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.reference-card:hover .ref-image img { transform: scale(1.04); }
.reference-card .ref-badge {
    position: absolute; top: 1rem; left: 1rem;
    background: var(--gradient-orange);
    color: #fff;
    border-radius: var(--radius);
    padding: .25rem .625rem;
    font-size: .7rem; font-weight: 700;
    text-transform: uppercase;
}
.reference-card .card-body { padding: 1.25rem; }
.reference-card h3 { font-size: 1rem; margin-bottom: .5rem; }
.reference-card .ref-meta {
    display: flex; gap: 1rem; flex-wrap: wrap;
    font-size: .8rem; color: var(--gray-500);
}
.reference-card .ref-meta span { display: flex; align-items: center; gap: .3rem; }
.reference-card .ref-meta i { color: var(--df-orange); }

/* Blog Kartı */
.blog-card .blog-img {
    width: 100%; aspect-ratio: 16/9; overflow: hidden;
    background: var(--df-light);
}
.blog-card .blog-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.blog-card:hover .blog-img img { transform: scale(1.04); }
.blog-card .blog-meta { font-size: .8rem; color: var(--gray-400); margin-bottom: .625rem; display: flex; gap: 1rem; align-items: center; }
.blog-card .blog-meta i { color: var(--df-orange); }
.blog-card h3 { font-size: 1.025rem; margin-bottom: .5rem; line-height: 1.4; }
.blog-card p { font-size: .875rem; color: var(--gray-500); }

/* ========================================================================
   WHY US — Özellikler
   ======================================================================== */
.feature-item {
    display: flex; gap: 1.25rem; align-items: flex-start;
    margin-bottom: 1.75rem;
}
.feature-icon {
    width: 52px; height: 52px;
    border-radius: var(--radius);
    background: var(--primary-50);
    color: var(--df-blue);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.375rem;
    flex-shrink: 0;
    border: 1px solid var(--primary-100);
}
.feature-item h4 { font-size: .95rem; margin-bottom: .25rem; color: var(--df-navy); }
.feature-item p  { font-size: .875rem; color: var(--gray-500); margin: 0; }

/* ========================================================================
   STATS
   ======================================================================== */
.stats-section { background: var(--gradient-steel); }
.stat-box {
    text-align: center;
    padding: 2rem 1rem;
    position: relative;
}
.stat-box::after {
    content: '';
    position: absolute; right: 0; top: 20%; bottom: 20%;
    width: 1px;
    background: rgba(255,255,255,.1);
}
.stat-box:last-child::after { display: none; }
.stat-num {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--df-orange);
    line-height: 1;
    margin-bottom: .375rem;
}
.stat-label { font-size: .8rem; color: rgba(255,255,255,.7); text-transform: uppercase; letter-spacing: .75px; font-weight: 600; }
.stat-desc   { font-size: .8125rem; color: rgba(255,255,255,.5); margin-top: .25rem; }

/* ========================================================================
   CTA BANNER
   ======================================================================== */
.cta-banner {
    background: var(--gradient-orange);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
    position: relative;
    overflow: hidden;
}
.cta-banner::before {
    content: '';
    position: absolute; top: -50%; right: -10%;
    width: 350px; height: 350px;
    border-radius: 50%;
    background: rgba(255,255,255,.06);
}
.cta-banner h2 { color: #fff; font-size: clamp(1.5rem, 3vw, 2rem); }
.cta-banner p  { color: rgba(255,255,255,.85); }

/* ========================================================================
   BREADCRUMB
   ======================================================================== */
.page-hero {
    background: var(--gradient-hero);
    padding: 5.5rem 0 2.5rem;
    position: relative;
    overflow: hidden;
}
.page-hero::after {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 80px;
    background: linear-gradient(to top, #fff 0%, transparent 100%);
}
.page-hero h1 { color: #fff; font-size: clamp(1.75rem, 4vw, 2.75rem); margin-bottom: .5rem; }
.breadcrumb { background: none; padding: 0; margin: 0; }
.breadcrumb-item a { color: rgba(255,255,255,.65); }
.breadcrumb-item a:hover { color: var(--df-orange); }
.breadcrumb-item.active { color: var(--df-orange-lt); }
.breadcrumb-item + .breadcrumb-item::before { color: rgba(255,255,255,.35); }

/* ========================================================================
   İÇERİK DETAY
   ======================================================================== */
.content-body h2 { color: var(--df-navy); margin: 1.75rem 0 .875rem; font-size: 1.5rem; }
.content-body h3 { color: var(--df-steel); margin: 1.25rem 0 .625rem; font-size: 1.2rem; }
.content-body p  { margin-bottom: 1rem; color: var(--gray-600); line-height: 1.8; }
.content-body ul, .content-body ol { padding-left: 1.5rem; margin-bottom: 1rem; }
.content-body li { margin-bottom: .5rem; color: var(--gray-600); }
.content-body li strong { color: var(--df-navy); }
.content-body strong { color: var(--df-navy); }

/* ========================================================================
   GALERI
   ======================================================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
}
.gallery-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    position: relative;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item-overlay {
    position: absolute; inset: 0;
    background: rgba(13,27,42,.45);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity .3s;
    color: #fff; font-size: 2rem;
}
.gallery-item:hover .gallery-item-overlay { opacity: 1; }

/* ========================================================================
   FOOTER
   ======================================================================== */
.site-footer {
    background: var(--df-navy);
    color: rgba(255,255,255,.7);
    font-size: .9rem;
}
.site-footer h5, .site-footer h6 {
    color: #fff;
    font-weight: 700;
    margin-bottom: 1.25rem;
    font-size: .925rem;
    text-transform: uppercase;
    letter-spacing: .75px;
}
.site-footer p { color: rgba(255,255,255,.65); }
.site-footer a { color: rgba(255,255,255,.65); transition: color .2s; }
.site-footer a:hover { color: var(--df-orange); }

.footer-logo .brand-name { color: #fff; font-size: 1.5rem; }
.footer-logo .brand-sub  { color: var(--df-orange-lt); }

.footer-links li { margin-bottom: .5rem; }
.footer-links li a {
    display: flex; align-items: center; gap: .4rem;
    transition: all .2s;
}
.footer-links li a::before {
    content: '';
    width: 6px; height: 2px;
    background: var(--df-orange);
    border-radius: 2px;
    transition: width .2s;
}
.footer-links li a:hover::before { width: 14px; }

.footer-contact-item {
    display: flex; align-items: flex-start; gap: .875rem;
    margin-bottom: 1rem;
}
.footer-contact-item i {
    width: 32px; height: 32px;
    background: rgba(232,93,4,.15);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    color: var(--df-orange);
    font-size: .9rem;
    flex-shrink: 0;
    margin-top: .1rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 1.25rem 0;
    font-size: .8rem;
    color: rgba(255,255,255,.45);
}

.social-links { display: flex; gap: .625rem; }
.social-link {
    width: 38px; height: 38px;
    border-radius: var(--radius);
    background: rgba(255,255,255,.07);
    color: rgba(255,255,255,.65);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
    transition: all .2s;
    border: 1px solid rgba(255,255,255,.07);
}
.social-link:hover {
    background: var(--df-orange);
    color: #fff;
    border-color: var(--df-orange);
    transform: translateY(-2px);
}

/* ========================================================================
   FORM — İletişim
   ======================================================================== */
.contact-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.5rem;
}
.contact-info-item {
    display: flex; align-items: flex-start; gap: 1.25rem;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--df-light);
}
.contact-info-item:last-child { border-bottom: none; }
.contact-info-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    background: var(--primary-50);
    color: var(--df-blue);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.contact-info-icon.orange { background: rgba(232,93,4,.1); color: var(--df-orange); }
.contact-info-text h6 { font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; color: var(--gray-400); margin-bottom: .25rem; }
.contact-info-text p, .contact-info-text a { font-size: .95rem; color: var(--df-navy); font-weight: 600; margin: 0; }
.contact-info-text a:hover { color: var(--df-orange); }

.form-control, .form-select {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: .75rem 1rem;
    font-size: .9rem;
    transition: border-color .2s, box-shadow .2s;
    background: #fff;
}
.form-control:focus, .form-select:focus {
    border-color: var(--df-blue);
    box-shadow: 0 0 0 4px rgba(30,95,168,.12);
    outline: none;
}
.form-label { font-weight: 600; font-size: .85rem; color: var(--df-navy); margin-bottom: .4rem; }
textarea.form-control { resize: vertical; min-height: 140px; }

/* ========================================================================
   RESPONSIVE
   ======================================================================== */
@media (max-width: 991.98px) {
    .header-main .navbar-collapse {
        background: var(--df-navy);
        padding: 1rem;
        border-radius: 0 0 var(--radius-md) var(--radius-md);
        box-shadow: var(--shadow-lg);
    }
    .navbar-nav .nav-link { padding: .75rem 1rem !important; }
    .navbar-nav .nav-link::after { display: none; }
    .hero { min-height: auto; padding: 8rem 0 4rem; }
    .hero-img-wrap { margin-top: 2.5rem; }
    .hero-img-badge { bottom: -1rem; left: -.5rem; }
    .stat-box::after { display: none; }
}

@media (max-width: 767.98px) {
    .hero-stats { gap: 1.25rem; }
    .hero-stat .stat-value { font-size: 1.5rem; }
    .cta-banner { padding: 2rem 1.5rem; }
    .contact-card { padding: 1.5rem; }
    section { padding: 3.5rem 0; }
}

/* ========================================================================
   YARDIMCI
   ======================================================================== */
.text-orange   { color: var(--df-orange) !important; }
.text-steel    { color: var(--df-steel) !important; }
.bg-steel      { background: var(--df-steel) !important; }
.bg-navy       { background: var(--df-navy) !important; }
.bg-light-df   { background: var(--df-light) !important; }
.border-orange { border-color: var(--df-orange) !important; }

.list-clean    { list-style: none; padding: 0; margin: 0; }
.overflow-hidden { overflow: hidden; }
.position-relative { position: relative; }
.img-cover     { width: 100%; height: 100%; object-fit: cover; }

/* Placeholder görseller için */
.img-placeholder {
    width: 100%; height: 100%;
    background: linear-gradient(135deg, var(--df-steel) 0%, var(--df-light) 100%);
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,.4);
    font-size: 4rem;
}

/* Back to top */
.back-to-top {
    position: fixed; bottom: 2rem; right: 2rem;
    width: 44px; height: 44px;
    background: var(--gradient-orange);
    color: #fff;
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-orange);
    cursor: pointer;
    transition: all .3s;
    opacity: 0; visibility: hidden;
    z-index: 900;
    border: none;
    font-size: 1rem;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-4px); }

/* WhatsApp FAB */
.whatsapp-fab {
    position: fixed; bottom: 2rem; right: 5rem;
    width: 52px; height: 52px;
    background: #25d366;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.625rem;
    color: #fff;
    box-shadow: 0 4px 20px rgba(37,211,102,.4);
    transition: all .3s;
    z-index: 900;
    text-decoration: none;
}
.whatsapp-fab:hover { transform: scale(1.12); color: #fff; }

/* ========================================================================
   SAYFA GEÇIŞ & AOS OVERRİDE
   ======================================================================== */
[data-aos] { will-change: transform; }

/* ================================================================
   ENHANCED BLOG & CONTENT STYLES
   ================================================================ */

/* Reading progress bar */
.reading-progress {
    position: fixed;
    top: 0; left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-orange);
    z-index: 9999;
    transition: width .1s linear;
}

/* Article typography */
.article-body {
    font-size: 1.0625rem;
    line-height: 1.85;
    color: #374151;
}
.article-body h2 {
    font-size: 1.625rem;
    font-weight: 800;
    color: var(--df-navy);
    margin: 2.5rem 0 1rem;
    padding-left: 1rem;
    border-left: 4px solid var(--df-orange);
}
.article-body h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--df-steel);
    margin: 2rem 0 .75rem;
}
.article-body p { margin-bottom: 1.25rem; }
.article-body ul, .article-body ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}
.article-body li {
    margin-bottom: .625rem;
    color: #374151;
}
.article-body li::marker { color: var(--df-orange); }
.article-body strong { color: var(--df-navy); font-weight: 700; }
.article-body blockquote {
    border-left: 4px solid var(--df-orange);
    margin: 2rem 0;
    padding: 1.25rem 1.5rem;
    background: var(--df-light);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--df-steel);
    font-size: 1.1rem;
}
.article-body img {
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
    box-shadow: var(--shadow);
}

/* Share buttons */
.share-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .5rem 1rem;
    border-radius: var(--radius);
    font-size: .8125rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all .2s;
    text-decoration: none;
}
.share-btn.facebook  { background: #1877F2; color: #fff; }
.share-btn.twitter   { background: #1DA1F2; color: #fff; }
.share-btn.whatsapp  { background: #25D366; color: #fff; }
.share-btn.linkedin  { background: #0A66C2; color: #fff; }
.share-btn.copy      { background: var(--df-light); color: var(--df-navy); border: 1px solid var(--df-gray-200); }
.share-btn:hover     { transform: translateY(-2px); opacity: .9; }

/* Tag pills */
.tag-pill {
    display: inline-block;
    padding: .25rem .75rem;
    background: var(--primary-50);
    color: var(--df-blue);
    border-radius: var(--radius-full);
    font-size: .75rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--primary-100);
    transition: all .2s;
}
.tag-pill:hover {
    background: var(--df-blue);
    color: #fff;
    border-color: var(--df-blue);
}

/* Table of contents */
.toc {
    background: var(--df-light);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    border-left: 3px solid var(--df-orange);
}
.toc-title {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .75px;
    color: var(--df-navy);
    margin-bottom: .75rem;
    display: flex;
    align-items: center;
    gap: .4rem;
}
.toc ol { padding-left: 1.25rem; margin: 0; }
.toc li { margin-bottom: .35rem; }
.toc a  { font-size: .875rem; color: var(--df-steel); font-weight: 500; text-decoration: none; }
.toc a:hover { color: var(--df-orange); }

/* Sticky sidebar */
.sticky-sidebar {
    position: sticky;
    top: 100px;
}

/* Info box */
.info-box {
    background: var(--primary-50);
    border: 1px solid var(--primary-100);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}
.info-box-title {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--df-blue);
    margin-bottom: .75rem;
}
.info-box-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .4rem 0;
    border-bottom: 1px solid var(--primary-100);
    font-size: .875rem;
}
.info-box-row:last-child { border-bottom: none; }
.info-box-row .label { color: #64748b; }
.info-box-row .value { font-weight: 700; color: var(--df-navy); }

/* Feature list for services */
.feature-list { list-style: none; padding: 0; margin: 0; }
.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
    padding: .625rem 0;
    border-bottom: 1px solid var(--df-light);
    font-size: .9rem;
    color: #374151;
}
.feature-list li:last-child { border-bottom: none; }
.feature-list li::before {
    content: '';
    width: 20px; height: 20px;
    background: var(--df-orange);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 2px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z' fill='white'/%3E%3C/svg%3E");
    background-size: 12px;
    background-position: center;
    background-repeat: no-repeat;
}

/* Category badge */
.cat-badge {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .375rem .875rem;
    background: var(--gradient-orange);
    color: #fff;
    border-radius: var(--radius-full);
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
}

/* Related card mini */
.related-mini {
    display: flex;
    gap: .875rem;
    align-items: flex-start;
    padding: .75rem 0;
    border-bottom: 1px solid var(--df-light);
    text-decoration: none;
    transition: all .2s;
}
.related-mini:last-child { border-bottom: none; }
.related-mini:hover { transform: translateX(4px); }
.related-mini-img {
    width: 60px; height: 45px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
    background: var(--df-light);
}
.related-mini-text h6 {
    font-size: .825rem;
    font-weight: 700;
    color: var(--df-navy);
    margin-bottom: .15rem;
    line-height: 1.35;
}
.related-mini-text span {
    font-size: .7rem;
    color: #94a3b8;
}

/* Contact sidebar card */
.contact-sidebar {
    background: var(--gradient-hero);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    color: #fff;
}
.contact-sidebar h5 { color: #fff; font-size: 1.1rem; margin-bottom: .5rem; }
.contact-sidebar p  { color: rgba(255,255,255,.75); font-size: .875rem; margin-bottom: 1.25rem; }
.contact-sidebar .phone-big {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--df-orange-lt);
    display: block;
    margin-bottom: 1rem;
}

/* Page hero variants */
.page-hero-sm {
    background: var(--gradient-hero);
    padding: 6.5rem 0 2rem;
    position: relative;
    overflow: hidden;
}
.page-hero-sm::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 60px;
    background: linear-gradient(to top, #fff, transparent);
}

/* Pagination */
.page-link {
    border: 1px solid var(--df-gray-200, #e2e8f0);
    color: var(--df-steel);
    padding: .5rem .875rem;
    border-radius: var(--radius);
    margin: 0 .125rem;
    font-weight: 600;
    font-size: .875rem;
    transition: all .2s;
}
.page-link:hover { background: var(--primary-50); color: var(--df-blue); border-color: var(--primary-100); }
.page-item.active .page-link { background: var(--df-blue); border-color: var(--df-blue); color: #fff; }

/* Mobile menu overlay */
@media (max-width: 991.98px) {
    .navbar-collapse.show .navbar-nav {
        padding: .5rem 0;
    }
    .navbar .btn-cta {
        margin-top: .5rem;
        width: 100%;
        justify-content: center;
    }
}