/* ==========================================================================
   ARYANT İNŞAAT — KURUMSAL TEMA
   --------------------------------------------------------------------------
   PALET ÖNERİSİ (koyu lacivert/antrasit + amber vurgu):
     Ana renk : #3C5261 (slate — güven, sağlamlık; türevleri zeminde kullanılır)
     Zemin    : #1B2934 / #22333F / #2C404E
     Vurgu    : #978056 (altın/bronz — enerji + kalite)
     Metin  : #F4F7FB / #A9B6CC
   Koyu tema varsayılandır; sağ üstteki düğmeyle açık temaya geçilebilir.

   NOT: Yayına alırken bu dosyayı minify edin (örn. cssminifier.com) —
   yorum satırları kaldırılır, dosya boyutu ~%60 küçülür.
   ========================================================================== */

/* ---------- 1. TEMA DEĞİŞKENLERİ (CSS Custom Properties) ---------- */
:root {
    /* Koyu tema (varsayılan) — ana renk #3C5261 türevleri, vurgu #978056 */
    --bg:            #1B2934;                 /* sayfa zemini               */
    --bg-elevated:   #22333F;                 /* kart / yüzey zemini        */
    --bg-soft:       #2C404E;                 /* ikincil yüzey              */
    --border:        rgba(255, 255, 255, .09);
    --text:          #F4F7F9;                 /* ana metin                  */
    --text-muted:    #B6C4CE;                 /* ikincil metin              */
    --accent:        #978056;                 /* altın/bronz vurgu          */
    --accent-hover:  #AD966B;
    --accent-ink:    #17130B;                 /* vurgu üstündeki metin      */
    --accent-soft:   rgba(151, 128, 86, .16);
    --header-bg:     rgba(27, 41, 52, .75);
    --footer-bg:     #121C24;
    --shadow-lg:     0 24px 60px -16px rgba(5, 10, 14, .55);
    --shadow-glow:   0 10px 34px -8px rgba(151, 128, 86, .45);
}

/* Açık tema geçersiz kılmaları */
[data-theme="light"] {
    --bg:            #F4F6F8;
    --bg-elevated:   #FFFFFF;
    --bg-soft:       #E9EEF2;
    --border:        rgba(60, 82, 97, .14);
    --text:          #24313B;
    --text-muted:    #5C6D79;
    --accent:        #7D6943;                 /* açık zeminde daha okunur  */
    --accent-hover:  #978056;
    --accent-ink:    #FBF8F1;
    --accent-soft:   rgba(151, 128, 86, .16);
    --header-bg:     rgba(255, 255, 255, .82);
    --footer-bg:     #1B2934;                 /* footer her temada koyu    */
    --shadow-lg:     0 24px 60px -18px rgba(60, 82, 97, .25);
    --shadow-glow:   0 10px 30px -10px rgba(125, 105, 67, .35);
}

/* ---------- 2. RESET & TEMEL ---------- */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text);
    background-color: var(--bg);
    overflow-x: hidden;
    transition: background-color .35s ease, color .35s ease;
}

body.no-scroll { overflow: hidden; }

img, svg, video { max-width: 100%; display: block; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', 'Segoe UI', sans-serif;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -.01em;
}

::selection { background: var(--accent); color: var(--accent-ink); }

a:focus-visible,
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* Temaya uyumlu ince kaydırma çubuğu */
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-soft); border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Yapışkan başlık, çapa hedeflerini örtmesin */
[id] { scroll-margin-top: 96px; }

/* ---------- 3. YERLEŞİM & YARDIMCILAR ---------- */
.container { width: min(1240px, 100% - 2.5rem); margin-inline: auto; }

.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); position: relative; }
.section--tight { padding-block: clamp(3rem, 6vw, 4.5rem); }

/* Bölüm başlığı */
.section-head { max-width: 680px; margin-bottom: clamp(2.75rem, 5vw, 4rem); }
.section-head--center { margin-inline: auto; text-align: center; }

.eyebrow {
    display: inline-flex; align-items: center; gap: .65rem;
    font-family: 'Space Grotesk', sans-serif;
    font-size: .8rem; font-weight: 600;
    letter-spacing: .22em; text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}
.eyebrow::before { content: ''; width: 34px; height: 2px; background: var(--accent); }
.section-head--center .eyebrow::after { content: ''; width: 34px; height: 2px; background: var(--accent); }

.section-title { font-size: clamp(1.9rem, 3.6vw, 2.8rem); margin-bottom: 1rem; }
.section-text { color: var(--text-muted); font-size: 1.05rem; }

.text-accent { color: var(--accent); }

/* Basit grid yardımcıları */
.grid { display: grid; gap: 1.75rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 4. BUTONLAR ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
    padding: .95rem 2.1rem;
    border-radius: 999px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600; font-size: .95rem; letter-spacing: .02em;
    transition: transform .3s ease, box-shadow .3s ease,
                background-color .3s ease, color .3s ease, border-color .3s ease;
    will-change: transform;
    white-space: nowrap;
}
.btn:active { transform: scale(.97); }

.btn-primary {
    background: var(--accent); color: var(--accent-ink);
    box-shadow: 0 8px 24px -10px rgba(151, 128, 86, .55);
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-3px); box-shadow: var(--shadow-glow); }

.btn-outline { border: 1.5px solid var(--border); color: var(--text); background: transparent; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }

.btn-sm { padding: .65rem 1.35rem; font-size: .88rem; }

/* Buton oku: hover'da kayar */
.btn .btn-arrow { transition: transform .3s ease; }
.btn:hover .btn-arrow { transform: translateX(5px); }

/* ---------- 5. PRELOADER ---------- */
.preloader {
    position: fixed; inset: 0; z-index: 9999;
    display: grid; place-items: center;
    background: var(--bg);
    transition: opacity .6s ease, visibility .6s ease;
}
.preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.preloader-inner { display: flex; flex-direction: column; align-items: center; gap: 1.1rem; }

.preloader-mark {
    width: 64px; height: 64px;
    display: grid; place-items: center;
    background: var(--accent); color: var(--accent-ink);
    font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.7rem;
    border-radius: 16px;
    animation: preloaderPulse 1.15s ease-in-out infinite;
}
.preloader-name {
    font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.05rem;
    letter-spacing: .42em; text-indent: .42em;
    color: var(--text);
}
.preloader-bar {
    width: 150px; height: 3px;
    background: var(--bg-soft); border-radius: 3px; overflow: hidden;
}
.preloader-bar::after {
    content: ''; display: block; height: 100%; width: 40%;
    background: var(--accent); border-radius: 3px;
    animation: preloaderSlide 1.1s ease-in-out infinite;
}

@keyframes preloaderPulse {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.06); }
}
@keyframes preloaderSlide {
    0%   { transform: translateX(-120%); }
    100% { transform: translateX(420%); }
}

/* ---------- 6. ÜST BARI (HEADER) ---------- */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: transparent;
    transition: background-color .35s ease, box-shadow .35s ease, border-color .35s ease;
    border-bottom: 1px solid transparent;
}
.site-header.scrolled {
    background: var(--header-bg);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    box-shadow: 0 12px 32px -18px rgba(2, 6, 23, .5);
    border-bottom-color: var(--border);
}

.header-inner {
    display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
    height: 84px;
    transition: height .35s ease;
}
.site-header.scrolled .header-inner { height: 72px; }

/* Logo */
.brand { display: inline-flex; align-items: center; gap: .8rem; }
.brand-mark {
    width: 46px; height: 46px; flex: none;
    display: grid; place-items: center;
    background: var(--accent); color: var(--accent-ink);
    font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.4rem;
    border-radius: 12px;
    box-shadow: 0 8px 20px -8px rgba(151, 128, 86, .5);
    transition: transform .35s ease;
}
.brand:hover .brand-mark { transform: rotate(-8deg) scale(1.05); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-family: 'Space Grotesk', sans-serif; font-size: 1.25rem; letter-spacing: .06em; }
.brand-text small { color: var(--text-muted); font-size: .66rem; letter-spacing: .18em; text-transform: uppercase; }

/* Masaüstü menü */
.nav-list { display: flex; gap: 2.1rem; }
.nav-link {
    position: relative;
    font-size: .95rem; font-weight: 500;
    color: var(--text-muted);
    padding-block: .45rem;
    transition: color .25s ease;
}
.nav-link::after {
    content: ''; position: absolute; left: 0; bottom: 0;
    width: 0; height: 2px; border-radius: 2px;
    background: var(--accent);
    transition: width .3s ease;
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* Sağ aksiyonlar */
.header-actions { display: flex; align-items: center; gap: .9rem; }

.theme-toggle {
    width: 42px; height: 42px; flex: none;
    display: grid; place-items: center;
    border: 1.5px solid var(--border); border-radius: 50%;
    color: var(--text);
    transition: border-color .3s ease, color .3s ease, transform .3s ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); transform: rotate(15deg); }
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* Hamburger (mobil) */
.hamburger {
    display: none;
    width: 44px; height: 44px; flex: none;
    flex-direction: column; align-items: center; justify-content: center; gap: 6px;
    border: 1.5px solid var(--border); border-radius: 12px;
}
.hamburger span {
    display: block; width: 20px; height: 2px;
    background: var(--text); border-radius: 2px;
    transition: transform .3s ease, opacity .3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobil menü (tam ekran overlay) */
.mobile-menu {
    position: fixed; inset: 0; z-index: 990;
    background: var(--bg);
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .4rem;
    opacity: 0; visibility: hidden;
    transition: opacity .4s ease, visibility .4s ease;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.6rem; font-weight: 600;
    padding: .55rem 1rem;
    color: var(--text-muted);
    transition: color .25s ease, transform .25s ease;
}
.mobile-menu a:hover,
.mobile-menu a.active { color: var(--accent); transform: translateX(6px); }
.mobile-menu .mobile-cta { margin-top: 1.6rem; }

/* ---------- 7. HERO (TEMEL) ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: grid; place-items: center;
    text-align: center;
    overflow: hidden;
    /* Geçici arka plan — 2. adımda gerçek görsel/slider ile değiştirilecek */
    background:
        radial-gradient(900px 480px at 80% -10%, rgba(151, 128, 86, .20), transparent 60%),
        radial-gradient(760px 520px at 10% 110%, rgba(60, 82, 97, .55), transparent 60%),
        linear-gradient(160deg, #2C404E 0%, #1B2934 55%, #16222C 100%);
}
[data-theme="light"] .hero {
    background:
        radial-gradient(900px 480px at 80% -10%, rgba(151, 128, 86, .14), transparent 60%),
        linear-gradient(160deg, #E2EAF0 0%, #F4F6F8 60%, #E5EBF0 100%);
}
/* İnce mühendislik grid dokusu */
.hero::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 72px 72px;
    opacity: .35;
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
            mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}

.hero-content { position: relative; z-index: 2; max-width: 920px; padding-inline: 1.5rem; }

.hero-kicker {
    font-family: 'Space Grotesk', sans-serif;
    letter-spacing: .28em; text-transform: uppercase;
    font-size: .82rem; font-weight: 600;
    color: var(--accent);
    margin-bottom: 1.4rem;
}
.hero-title { font-size: clamp(2.5rem, 6.4vw, 4.6rem); margin-bottom: 1.4rem; }
.hero-text {
    color: var(--text-muted);
    font-size: clamp(1rem, 1.6vw, 1.2rem);
    max-width: 620px; margin: 0 auto 2.4rem;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Aşağı kaydırma göstergesi */
.scroll-down {
    position: absolute; bottom: 2.2rem; left: 50%; transform: translateX(-50%);
    z-index: 2;
    width: 30px; height: 52px;
    border: 2px solid var(--text-muted); border-radius: 18px;
    display: flex; justify-content: center; padding-top: 9px;
    color: var(--accent);
    transition: border-color .3s ease;
}
.scroll-down:hover { border-color: var(--accent); }
.scroll-down::after {
    content: ''; width: 4px; height: 10px; border-radius: 4px;
    background: currentColor;
    animation: scrollWheel 1.8s ease-in-out infinite;
}
@keyframes scrollWheel {
    0%   { transform: translateY(0);  opacity: 1; }
    70%  { transform: translateY(14px); opacity: 0; }
    100% { transform: translateY(14px); opacity: 0; }
}

/* ---------- 8. SCROLL ANİMASYONLARI (Intersection Observer) ---------- */
/* JS aktifken gizlenir, görünüme girince .is-visible ile açılır.
   JS kapalıysa içerik her zaman görünür kalır. */
.js .reveal {
    opacity: 0;
    transform: translateY(44px);
    transition:
        opacity .8s cubic-bezier(.22, 1, .36, 1),
        transform .8s cubic-bezier(.22, 1, .36, 1);
    transition-delay: var(--reveal-delay, 0s);
    will-change: opacity, transform;
}
.js .reveal--left   { transform: translateX(-56px); }
.js .reveal--right  { transform: translateX(56px); }
.js .reveal--scale  { transform: scale(.92); }
.js .reveal.is-visible { opacity: 1; transform: none; }

.reveal-delay-1 { --reveal-delay: .10s; }
.reveal-delay-2 { --reveal-delay: .22s; }
.reveal-delay-3 { --reveal-delay: .34s; }
.reveal-delay-4 { --reveal-delay: .46s; }

/* ---------- 9. ALT BİLGİ (FOOTER) ---------- */
.site-footer { background: var(--footer-bg); color: #C7D2E2; }
[data-theme="light"] .site-footer { color: #B9C6D8; }

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
    gap: 3rem;
    padding-block: clamp(3.5rem, 7vw, 5.5rem);
}

.footer-title {
    color: #FFFFFF;
    font-size: 1.02rem; letter-spacing: .04em;
    margin-bottom: 1.4rem;
    position: relative; padding-bottom: .7rem;
}
.footer-title::after {
    content: ''; position: absolute; left: 0; bottom: 0;
    width: 30px; height: 3px; border-radius: 3px;
    background: var(--accent);
}

.footer-about p { font-size: .95rem; opacity: .85; margin-top: 1.2rem; max-width: 340px; }
.footer-brand .brand-text strong { color: #FFFFFF; }
.footer-brand .brand-text small { color: #8A98AD; }

.footer-links li + li { margin-top: .7rem; }
.footer-links a {
    font-size: .95rem; color: #C7D2E2;
    transition: color .25s ease, padding-left .25s ease;
}
.footer-links a:hover { color: var(--accent); padding-left: 8px; }

.footer-contact li { display: flex; gap: .85rem; font-size: .95rem; line-height: 1.55; }
.footer-contact li + li { margin-top: 1.05rem; }
.footer-contact svg { flex: none; width: 19px; height: 19px; color: var(--accent); margin-top: .2rem; }
.footer-contact a:hover { color: var(--accent); }

.social-links { display: flex; gap: .75rem; margin-top: 1.6rem; }
.social-links a {
    width: 42px; height: 42px; display: grid; place-items: center;
    border: 1px solid rgba(255, 255, 255, .14); border-radius: 50%;
    color: #C7D2E2;
    transition: background-color .3s ease, color .3s ease,
                border-color .3s ease, transform .3s ease;
}
.social-links a:hover {
    background: var(--accent); border-color: var(--accent);
    color: var(--accent-ink); transform: translateY(-4px);
}
.social-links svg { width: 18px; height: 18px; }

.footer-bottom {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; flex-wrap: wrap;
    padding-block: 1.6rem;
    border-top: 1px solid rgba(255, 255, 255, .08);
    font-size: .86rem; color: #8A98AD;
}

/* ---------- 10. YUKARI ÇIK BUTONU ---------- */
.back-to-top {
    position: fixed; right: 1.6rem; bottom: 1.6rem; z-index: 900;
    width: 50px; height: 50px; border-radius: 14px;
    display: grid; place-items: center;
    background: var(--accent); color: var(--accent-ink);
    box-shadow: var(--shadow-glow);
    opacity: 0; visibility: hidden; transform: translateY(16px);
    transition: opacity .35s ease, visibility .35s ease, transform .35s ease;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { background: var(--accent-hover); transform: translateY(-4px); }
.back-to-top svg { width: 20px; height: 20px; }

/* ---------- 11. 404 SAYFASI ---------- */
.error-page {
    min-height: 100vh;
    min-height: 100svh;
    display: grid; place-items: center;
    text-align: center;
    padding-top: 84px;
}
.error-code {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(6rem, 18vw, 12rem); font-weight: 700; line-height: 1;
    background: linear-gradient(135deg, var(--accent), #C7B488);
    -webkit-background-clip: text; background-clip: text;
    color: transparent;
}
.error-actions {
    margin-top: 2.2rem;
    display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
}

/* ---------- 12. RESPONSIVE (mobile-first yaklaşım) ---------- */
@media (max-width: 1080px) {
    .main-nav, .header-cta { display: none; }
    .hamburger { display: flex; }

    .footer-grid { grid-template-columns: 1fr 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .container { width: calc(100% - 2rem); }
    .footer-grid { grid-template-columns: 1fr; gap: 2.4rem; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .hero-actions .btn { width: 100%; max-width: 320px; }
    .footer-bottom { justify-content: center; text-align: center; }
    .back-to-top { right: 1rem; bottom: 1rem; }
}

/* ==========================================================================
   12. ANASAYFA BÖLÜMLERİ (2. adım)
   Hero slider, hakkımızda, hizmetler, projeler, sayaçlar,
   süreç, referanslar, blog ve CTA bandı.
   ========================================================================== */

/* ---------- 12.1 HERO SLIDER ---------- */
/* Hero bölümü her iki temada da koyu zeminli slaytlar gösterir;
   bu yüzden metin renkleri tema değişkenine bağlanmaz. */
.hero { color: #F4F7FB; }
.hero .hero-text { color: #C9D3E4; }

.hero-slider { position: absolute; inset: 0; z-index: 0; }

.hero-slide {
    position: absolute; inset: 0;
    opacity: 0; visibility: hidden;
    display: grid; place-items: center; text-align: center;
    transition: opacity .9s ease, visibility .9s ease;
}
.hero-slide.is-active { opacity: 1; visibility: visible; z-index: 1; }

.hero-slide-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
}
.hero-slide.is-active .hero-slide-bg { animation: kenBurns 9s ease-out forwards; }

@keyframes kenBurns {
    from { transform: scale(1.02); }
    to   { transform: scale(1.12); }
}

/* Slayt zeminleri — görsel ayarlanmamışsa varsayılan gradyanlar */
.hero-slide-bg.slide-1 {
    background:
        radial-gradient(900px 480px at 82% -10%, rgba(151, 128, 86, .22), transparent 60%),
        radial-gradient(760px 520px at 8% 112%, rgba(60, 82, 97, .55), transparent 60%),
        linear-gradient(160deg, #304452 0%, #1B2934 60%, #16222C 100%);
}
.hero-slide-bg.slide-2 {
    background:
        radial-gradient(820px 460px at 12% -8%, rgba(151, 128, 86, .16), transparent 60%),
        radial-gradient(900px 560px at 90% 115%, rgba(60, 82, 97, .60), transparent 62%),
        linear-gradient(200deg, #2A3C49 0%, #1B2934 55%, #16222C 100%);
}
.hero-slide-bg.slide-3 {
    background:
        radial-gradient(860px 500px at 85% -12%, rgba(151, 128, 86, .20), transparent 60%),
        radial-gradient(760px 520px at 10% 110%, rgba(60, 82, 97, .55), transparent 60%),
        linear-gradient(160deg, #2F4351 0%, #1B2934 58%, #16222C 100%);
}

/* Okunabilirlik overlay'i */
.hero-slide::after {
    content: ''; position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(180deg, rgba(8, 13, 24, .58) 0%, rgba(8, 13, 24, .22) 42%, rgba(8, 13, 24, .68) 100%);
}

.hero-slide-content { position: relative; z-index: 2; max-width: 920px; width: 100%; padding-inline: 1.5rem; }

/* Slayt içeriği giriş animasyonu (yalnızca aktif slaytta) */
.hero-slide-content > * {
    opacity: 0; transform: translateY(34px);
    transition: opacity .75s ease, transform .75s ease;
}
.hero-slide.is-active .hero-slide-content > * { opacity: 1; transform: none; }
.hero-slide.is-active .hero-slide-content > :nth-child(1) { transition-delay: .10s; }
.hero-slide.is-active .hero-slide-content > :nth-child(2) { transition-delay: .24s; }
.hero-slide.is-active .hero-slide-content > :nth-child(3) { transition-delay: .38s; }
.hero-slide.is-active .hero-slide-content > :nth-child(4) { transition-delay: .52s; }

/* Slayt kontrolleri */
.hero-dots {
    position: absolute; bottom: 6.6rem; left: 50%; transform: translateX(-50%);
    z-index: 3; display: flex; gap: .7rem;
}
.hero-dot {
    width: 10px; height: 10px; border-radius: 999px;
    background: rgba(244, 247, 251, .32);
    transition: width .35s ease, background-color .35s ease;
}
.hero-dot:hover { background: rgba(244, 247, 251, .75); }
.hero-dot.is-active { width: 32px; background: var(--accent); }

.hero-arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
    width: 52px; height: 52px; border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .28); color: #F4F7FB;
    display: grid; place-items: center;
    transition: background-color .3s ease, color .3s ease, border-color .3s ease;
}
.hero-arrow:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.hero-arrow svg { width: 20px; height: 20px; }
.hero-arrow--prev { left: clamp(1rem, 4vw, 3rem); }
.hero-arrow--next { right: clamp(1rem, 4vw, 3rem); }

.scroll-down { z-index: 3; }

/* ---------- 12.2 HAKKIMIZDA ÖZETİ ---------- */
.about-grid {
    display: grid; grid-template-columns: 1.02fr 1fr;
    gap: clamp(3rem, 6vw, 5.5rem); align-items: center;
}
.about-media { position: relative; margin-bottom: 1rem; }
.about-img {
    position: relative; border-radius: 24px; overflow: hidden;
    aspect-ratio: 4 / 3;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}
.about-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s ease; }
.about-media:hover .about-img img { transform: scale(1.05); }
.about-img--small {
    position: absolute; right: -1.25rem; bottom: -1.5rem;
    width: 46%; aspect-ratio: 1 / 1;
    border: 6px solid var(--bg); border-radius: 20px;
}
.about-badge {
    position: absolute; left: -1rem; top: 1.4rem; z-index: 2;
    background: var(--accent); color: var(--accent-ink);
    border-radius: 18px; padding: 1.1rem 1.35rem;
    box-shadow: var(--shadow-glow); text-align: center;
}
.about-badge strong { font-family: 'Space Grotesk', sans-serif; font-size: 1.7rem; display: block; line-height: 1.05; }
.about-badge small { font-size: .72rem; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; }

.about-content .section-head { margin-bottom: 1.2rem; }

.check-list { margin: 1.5rem 0 2.2rem; display: grid; gap: .8rem; }
.check-list li { display: flex; gap: .75rem; align-items: flex-start; font-weight: 500; }
.check-list svg { flex: none; width: 21px; height: 21px; color: var(--accent); margin-top: .2rem; }

/* ---------- 12.3 HİZMETLER ---------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }

.service-card {
    position: relative; overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 22px;
    padding: 2.4rem 2rem;
    transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.service-card::before {
    content: ''; position: absolute; left: 0; top: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    transform: scaleX(0); transform-origin: left;
    transition: transform .45s ease;
}
.service-card:hover { transform: translateY(-8px); border-color: rgba(151, 128, 86, .42); box-shadow: var(--shadow-lg); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
    width: 64px; height: 64px; border-radius: 18px;
    display: grid; place-items: center;
    background: var(--accent-soft); color: var(--accent);
    margin-bottom: 1.5rem;
    transition: background-color .35s ease, color .35s ease, transform .35s ease;
}
.service-icon svg { width: 30px; height: 30px; }
.service-card:hover .service-icon { background: var(--accent); color: var(--accent-ink); transform: rotate(-6deg) scale(1.07); }
.service-card h3 { font-size: 1.22rem; margin-bottom: .7rem; }
.service-card p { color: var(--text-muted); font-size: .95rem; margin-bottom: 1.4rem; }
.service-link {
    display: inline-flex; align-items: center; gap: .45rem;
    color: var(--accent); font-weight: 600; font-size: .9rem;
}

/* ---------- 12.4 ÖNE ÇIKAN PROJELER ---------- */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }

.project-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 22px;
    overflow: hidden;
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.project-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(151, 128, 86, .35); }

.project-media { position: relative; display: block; aspect-ratio: 4 / 3; overflow: hidden; }
.project-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s ease; }
.project-card:hover .project-media img { transform: scale(1.09); }
.project-media::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 42%, rgba(8, 13, 24, .85) 100%);
    opacity: .7; transition: opacity .4s ease;
}
.project-card:hover .project-media::after { opacity: 1; }

.project-cat {
    position: absolute; top: 1.1rem; left: 1.1rem; z-index: 2;
    background: var(--accent); color: var(--accent-ink);
    font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    padding: .42rem .9rem; border-radius: 999px;
}
.project-more {
    position: absolute; bottom: 1.2rem; left: 1.3rem; z-index: 2;
    color: #FFFFFF; font-weight: 600; font-size: .92rem;
    display: inline-flex; align-items: center; gap: .5rem;
    opacity: 0; transform: translateY(12px);
    transition: opacity .4s ease, transform .4s ease;
}
.project-card:hover .project-more { opacity: 1; transform: none; }

.project-info { padding: 1.4rem 1.5rem 1.65rem; }
.project-title { font-size: 1.16rem; margin-bottom: .6rem; transition: color .25s ease; }
.project-card:hover .project-title { color: var(--accent); }
.project-meta { display: flex; gap: 1.1rem; flex-wrap: wrap; color: var(--text-muted); font-size: .85rem; }
.project-meta span { display: inline-flex; align-items: center; gap: .4rem; }
.project-meta svg { width: 15px; height: 15px; color: var(--accent); flex: none; }

.section-actions { text-align: center; margin-top: clamp(2.5rem, 5vw, 3.5rem); }

/* ---------- 12.5 SAYAÇLAR ---------- */
.stats-band {
    position: relative; overflow: hidden;
    background:
        radial-gradient(720px 340px at 50% 0%, rgba(151, 128, 86, .15), transparent 65%),
        linear-gradient(160deg, #243643 0%, #1B2934 72%);
    border-block: 1px solid var(--border);
}
.stats-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 2rem; padding-block: clamp(3rem, 6vw, 4.6rem);
}
.stat-item { text-align: center; }
.stat-item + .stat-item { border-left: 1px solid var(--border); }
.stat-value {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.4rem, 4.6vw, 3.4rem); font-weight: 700; line-height: 1.1;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}
.stat-label { display: block; margin-top: .5rem; color: #B6C4CE; font-size: .95rem; }

/* ---------- 12.6 SÜREÇ (TIMELINE) ---------- */
.process { position: relative; max-width: 920px; margin-inline: auto; }
.process::before {
    content: ''; position: absolute; top: 1.4rem; bottom: 1.4rem; left: 50%;
    width: 2px; transform: translateX(-50%);
    background: linear-gradient(180deg, transparent, var(--accent) 10%, var(--accent) 90%, transparent);
    opacity: .45;
}
.process-item { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; padding-block: 1.5rem; }
.process-num {
    position: absolute; left: 50%; top: 2.3rem; transform: translateX(-50%); z-index: 2;
    width: 58px; height: 58px; border-radius: 50%;
    display: grid; place-items: center;
    background: var(--accent); color: var(--accent-ink);
    font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.25rem;
    box-shadow: var(--shadow-glow);
}
.process-content {
    padding: 1.9rem 2rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 20px;
    transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.process-content:hover { transform: translateY(-5px); border-color: rgba(151, 128, 86, .4); box-shadow: var(--shadow-lg); }
.process-item:nth-child(odd)  .process-content { grid-column: 1; text-align: right; }
.process-item:nth-child(even) .process-content { grid-column: 2; }
.process-content h3 { font-size: 1.22rem; margin-bottom: .55rem; }
.process-content p { color: var(--text-muted); font-size: .95rem; }

/* ---------- 12.7 BLOG KARTLARI ---------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.blog-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 22px; overflow: hidden;
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.blog-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(151, 128, 86, .35); }
.blog-card:hover .project-media img { transform: scale(1.09); }
.blog-info { padding: 1.4rem 1.5rem 1.65rem; }
.blog-meta { display: flex; align-items: center; gap: .45rem; color: var(--text-muted); font-size: .84rem; margin-bottom: .6rem; }
.blog-meta svg { width: 15px; height: 15px; color: var(--accent); }
.blog-info h3 { font-size: 1.12rem; line-height: 1.42; margin-bottom: .55rem; transition: color .25s ease; }
.blog-card:hover .blog-info h3 { color: var(--accent); }
.blog-info p { color: var(--text-muted); font-size: .93rem; margin-bottom: 1.1rem; }
.blog-more { display: inline-flex; align-items: center; gap: .45rem; color: var(--accent); font-weight: 600; font-size: .9rem; }
.blog-more svg { width: 16px; height: 16px; }

/* ---------- 12.9 İLETİŞİM CTA BANDI ---------- */
.cta-band {
    position: relative; overflow: hidden;
    background: linear-gradient(120deg, #978056, #AD966B);
    color: #17130B; border-radius: 28px;
    padding: clamp(2.4rem, 5vw, 3.7rem);
    display: flex; align-items: center; justify-content: space-between;
    gap: 2rem; flex-wrap: wrap;
}
.cta-band::before {
    content: ''; position: absolute; right: -90px; top: -90px;
    width: 320px; height: 320px; border-radius: 50%;
    border: 46px solid rgba(22, 19, 10, .08);
}
.cta-band h2 { font-size: clamp(1.55rem, 3vw, 2.25rem); margin-bottom: .45rem; }
.cta-band p { opacity: .8; font-weight: 500; }
.cta-actions { display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap; position: relative; }
.cta-phone { display: inline-flex; align-items: center; gap: .9rem; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.2rem; }
.cta-phone .icon-circle {
    width: 52px; height: 52px; flex: none; border-radius: 50%;
    background: rgba(22, 19, 10, .14);
    display: grid; place-items: center;
    transition: transform .3s ease;
}
.cta-phone:hover .icon-circle { transform: rotate(-10deg) scale(1.07); }
.cta-phone svg { width: 22px; height: 22px; }

.btn-dark { background: #16130A; color: #E7D9BC; box-shadow: 0 10px 26px -12px rgba(22, 19, 10, .55); }
.btn-dark:hover { background: #0E0C07; transform: translateY(-3px); box-shadow: 0 14px 30px -12px rgba(22, 19, 10, .6); }

/* ---------- 12.10 ANASAYFA RESPONSIVE ---------- */
@media (max-width: 1080px) {
    .about-grid { grid-template-columns: 1fr; }
    .about-media { max-width: 580px; }
    .services-grid, .projects-grid, .blog-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item + .stat-item { border-left: 0; }
    .stat-item:nth-child(even) { border-left: 1px solid var(--border); }
}

@media (max-width: 640px) {
    .hero-arrow { display: none; }
    .hero-dots { bottom: 5.6rem; }
    .about-img--small { right: 0; bottom: -1rem; width: 52%; border-width: 4px; }
    .about-badge { left: .5rem; top: .5rem; padding: .85rem 1rem; }
    .about-badge strong { font-size: 1.35rem; }
    .services-grid, .projects-grid, .blog-grid { grid-template-columns: 1fr; }
    .process::before { left: 29px; }
    .process-item { grid-template-columns: 1fr; gap: 1rem; padding-left: 74px; }
    .process-num { left: 29px; width: 50px; height: 50px; font-size: 1.1rem; }
    .process-item:nth-child(odd) .process-content { grid-column: 1; text-align: left; }
    .process-content { padding: 1.5rem 1.4rem; }
    .cta-band { justify-content: center; text-align: center; border-radius: 22px; }
    .cta-actions { justify-content: center; }
}

/* Hareket azaltma tercihi olan kullanıcılar için animasyonları kapat */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .js .reveal { opacity: 1; transform: none; transition: none; }
    * { animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* ==========================================================================
   13. PROJELER (3. adım)
   İç sayfa hero, kategori filtreleri, galeri + lightbox,
   proje detay düzeni ve ilgili projeler.
   ========================================================================== */

/* ---------- 13.1 İÇ SAYFA HERO ---------- */
.page-hero {
    position: relative; overflow: hidden;
    padding: clamp(8.5rem, 16vw, 11.5rem) 0 clamp(3rem, 6vw, 4.2rem);
    background:
        radial-gradient(720px 360px at 82% -18%, rgba(151, 128, 86, .16), transparent 60%),
        radial-gradient(680px 420px at 6% 118%, rgba(60, 82, 97, .50), transparent 62%),
        linear-gradient(160deg, #2C404E 0%, #1B2934 62%);
    border-bottom: 1px solid var(--border);
    color: #F4F7FB;
}
/* İnce mühendislik grid dokusu */
.page-hero::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 72px 72px;
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 78%);
            mask-image: radial-gradient(ellipse at center, #000 30%, transparent 78%);
}
.page-hero .container { position: relative; }
.page-hero-title { font-size: clamp(2.2rem, 5vw, 3.4rem); }
.page-hero-text { color: #C9D3E4; max-width: 640px; margin-top: 1rem; }
.page-hero-meta { display: flex; flex-wrap: wrap; gap: 1.8rem; margin-top: 1.7rem; color: #C9D3E4; font-size: .95rem; }
.page-hero-meta span { display: inline-flex; align-items: center; gap: .55rem; }
.page-hero-meta svg { width: 17px; height: 17px; color: var(--accent); flex: none; }

/* Ekmek kırıntısı (breadcrumb) */
.breadcrumb {
    display: flex; align-items: center; flex-wrap: wrap; gap: .7rem;
    font-size: .88rem; color: rgba(244, 247, 251, .6);
    margin-bottom: 1.6rem;
}
.breadcrumb a { transition: color .25s ease; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span[aria-current] { color: var(--accent); font-weight: 600; }

/* ---------- 13.2 KATEGORİ FİLTRELERİ ---------- */
.filter-bar {
    display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center;
    margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.filter-btn {
    padding: .68rem 1.5rem; border-radius: 999px;
    border: 1.5px solid var(--border);
    font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: .92rem;
    color: var(--text-muted);
    display: inline-flex; align-items: center; gap: .55rem;
    transition: border-color .3s ease, color .3s ease, background-color .3s ease,
                transform .3s ease, box-shadow .3s ease;
}
.filter-btn:hover { border-color: var(--accent); color: var(--text); transform: translateY(-2px); }
.filter-btn.is-active {
    background: var(--accent); border-color: var(--accent); color: var(--accent-ink);
    box-shadow: var(--shadow-glow);
}
.filter-count {
    background: var(--accent-soft); color: var(--accent);
    border-radius: 999px; font-size: .76rem; font-weight: 700;
    padding: .12rem .55rem;
}
.filter-btn.is-active .filter-count { background: rgba(22, 19, 10, .18); color: var(--accent-ink); }

.project-card.is-hidden { display: none; }
.project-card.card-anim { animation: cardPop .55s cubic-bezier(.22, 1, .36, 1); }
@keyframes cardPop {
    from { opacity: 0; transform: translateY(20px) scale(.96); }
    to   { opacity: 1; transform: none; }
}

.empty-state { text-align: center; padding: clamp(2.5rem, 6vw, 4rem) 1rem; color: var(--text-muted); }
.empty-state p { margin-bottom: 1.6rem; font-size: 1.05rem; }

/* ---------- 13.3 PROJE DETAY DÜZENİ ---------- */
.project-detail-grid {
    display: grid; grid-template-columns: 1fr 380px;
    gap: clamp(2rem, 5vw, 3.5rem); align-items: start;
}

/* Galeri */
.gallery-main {
    display: block; width: 100%; padding: 0;
    aspect-ratio: 16 / 9;
    border-radius: 26px; overflow: hidden;
    border: 1px solid var(--border);
    position: relative; cursor: zoom-in;
    background: var(--bg-elevated);
}
.gallery-main img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s ease; }
.gallery-main:hover img { transform: scale(1.04); }
.gallery-main::after {
    content: '⤢'; position: absolute; right: 1.3rem; bottom: 1.2rem;
    width: 46px; height: 46px; border-radius: 12px;
    display: grid; place-items: center;
    background: rgba(8, 13, 24, .55); color: #F4F7FB; font-size: 1.25rem;
    -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
    opacity: 0; transform: translateY(8px);
    transition: opacity .35s ease, transform .35s ease;
}
.gallery-main:hover::after { opacity: 1; transform: none; }

.gallery-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 1rem; }
.gallery-thumb {
    padding: 0; aspect-ratio: 4 / 3; border-radius: 16px; overflow: hidden;
    border: 2px solid transparent; position: relative; cursor: zoom-in;
    transition: border-color .3s ease, transform .3s ease;
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb:hover { border-color: var(--accent); transform: translateY(-3px); }

/* Açıklama (WYSIWYG içerik) */
.project-description { margin-top: 2.6rem; }
.project-description h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 1.1rem; }
.rich-text { color: var(--text-muted); font-size: 1.02rem; }
.rich-text p + p { margin-top: 1rem; }
.rich-text h2, .rich-text h3 { color: var(--text); margin: 1.6rem 0 .8rem; }
.rich-text ul { list-style: disc; padding-left: 1.3rem; margin: 1rem 0; }
.rich-text li + li { margin-top: .4rem; }
.rich-text strong { color: var(--text); }

/* Teknik bilgi kartı */
.spec-card {
    position: sticky; top: 110px;
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 22px;
    padding: 1.9rem;
}
.spec-card h3 {
    font-size: 1.1rem; margin-bottom: 1.3rem; padding-bottom: .9rem;
    border-bottom: 1px solid var(--border);
}
.spec-list li { display: flex; align-items: flex-start; gap: .9rem; padding-block: .78rem; }
.spec-list li + li { border-top: 1px dashed var(--border); }
.spec-icon {
    width: 42px; height: 42px; flex: none; border-radius: 12px;
    background: var(--accent-soft); color: var(--accent);
    display: grid; place-items: center;
}
.spec-icon svg { width: 19px; height: 19px; }
.spec-list strong {
    display: block; font-size: .76rem; text-transform: uppercase; letter-spacing: .1em;
    color: var(--text-muted); font-family: 'Space Grotesk', sans-serif;
}
.spec-list span { font-weight: 600; }

.spec-cta {
    margin-top: 1.5rem; text-align: center;
    background: linear-gradient(120deg, #978056, #AD966B);
    border-radius: 22px; padding: 1.9rem 1.6rem; color: #17130B;
}
.spec-cta h4 { margin-bottom: .5rem; font-size: 1.15rem; }
.spec-cta p { font-size: .9rem; opacity: .85; margin-bottom: 1.3rem; }

/* ---------- 13.4 LIGHTBOX ---------- */
.lightbox {
    position: fixed; inset: 0; z-index: 5000;
    background: rgba(5, 8, 16, .93);
    -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    display: grid; place-items: center;
    opacity: 0; visibility: hidden;
    transition: opacity .35s ease, visibility .35s ease;
}
.lightbox.open { opacity: 1; visibility: visible; }

.lb-figure { max-width: min(1100px, 92vw); text-align: center; }
.lb-figure img {
    max-width: 100%; max-height: 78vh; width: auto; margin-inline: auto;
    border-radius: 14px; box-shadow: var(--shadow-lg);
}
.lb-figure img.lb-swap { animation: lbFade .35s ease; }
@keyframes lbFade {
    from { opacity: 0; transform: scale(.98); }
    to   { opacity: 1; transform: none; }
}
.lb-caption { margin-top: 1rem; color: #C9D3E4; font-size: .95rem; }

.lb-close {
    position: absolute; top: 1.4rem; right: 1.6rem;
    width: 48px; height: 48px; border-radius: 50%;
    background: rgba(255, 255, 255, .08); color: #F4F7FB;
    font-size: 1.7rem; line-height: 1;
    display: grid; place-items: center;
    transition: background-color .3s ease, color .3s ease;
}
.lb-close:hover { background: var(--accent); color: var(--accent-ink); }

.lb-nav {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 54px; height: 54px; border-radius: 50%;
    background: rgba(255, 255, 255, .08); color: #F4F7FB;
    font-size: 1.9rem; line-height: 1;
    display: grid; place-items: center;
    transition: background-color .3s ease, color .3s ease;
}
.lb-nav:hover { background: var(--accent); color: var(--accent-ink); }
.lb-prev { left: clamp(.8rem, 3vw, 2.4rem); }
.lb-next { right: clamp(.8rem, 3vw, 2.4rem); }

.lb-counter {
    position: absolute; bottom: 1.6rem; left: 50%; transform: translateX(-50%);
    color: #C9D3E4; font-size: .9rem; letter-spacing: .14em;
}

/* ---------- 13.5 PROJELER RESPONSIVE ---------- */
@media (max-width: 1080px) {
    .project-detail-grid { grid-template-columns: 1fr; }
    .spec-card { position: static; }
}

@media (max-width: 640px) {
    .page-hero-meta { gap: 1rem; flex-direction: column; align-items: flex-start; }
    .filter-bar {
        flex-wrap: nowrap; justify-content: flex-start;
        overflow-x: auto; padding-bottom: .6rem;
        -webkit-overflow-scrolling: touch;
    }
    .filter-btn { flex: none; }
    .gallery-thumbs { grid-template-columns: repeat(2, 1fr); }
    .lb-nav { width: 44px; height: 44px; font-size: 1.5rem; }
    .lb-close { top: 1rem; right: 1rem; width: 42px; height: 42px; }
}

/* ==========================================================================
   14. HAKKIMIZDA + HİZMETLER + İLETİŞİM (4. adım)
   ========================================================================== */

/* ---------- 14.1 MİSYON / VİZYON ---------- */
.mv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.75rem; }
.mv-card {
    position: relative; overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 24px;
    padding: 2.6rem 2.4rem;
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.mv-card::after {
    content: ''; position: absolute; right: -70px; top: -70px;
    width: 200px; height: 200px; border-radius: 50%;
    background: radial-gradient(circle, rgba(151, 128, 86, .14), transparent 70%);
    pointer-events: none;
}
.mv-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(151, 128, 86, .4); }
.mv-icon {
    width: 62px; height: 62px; border-radius: 18px;
    background: var(--accent-soft); color: var(--accent);
    display: grid; place-items: center; margin-bottom: 1.4rem;
}
.mv-icon svg { width: 28px; height: 28px; }
.mv-card h3 { font-size: 1.3rem; margin-bottom: .7rem; }
.mv-card p { color: var(--text-muted); }

/* ---------- 14.2 EKİP ---------- */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.75rem; }
.team-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 22px;
    padding: 2.2rem 1.8rem; text-align: center;
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.team-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(151, 128, 86, .4); }
.team-avatar {
    width: 96px; height: 96px; margin: 0 auto 1.3rem; border-radius: 50%;
    overflow: hidden; display: grid; place-items: center;
    background: var(--accent-soft); color: var(--accent);
    font-family: 'Space Grotesk', sans-serif; font-size: 2rem; font-weight: 700;
    border: 3px solid var(--border);
    transition: border-color .35s ease, transform .35s ease;
}
.team-card:hover .team-avatar { border-color: var(--accent); transform: scale(1.05); }
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-card h3 { font-size: 1.12rem; margin-bottom: .25rem; }
.team-role {
    display: block; color: var(--accent);
    font-size: .82rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
    margin-bottom: .9rem;
}
.team-card p { color: var(--text-muted); font-size: .9rem; }

/* ---------- 14.3 SERTİFİKALAR ---------- */
.certs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.cert-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 20px; overflow: hidden;
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.cert-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(151, 128, 86, .4); }
.cert-media { aspect-ratio: 4 / 3; overflow: hidden; }
.cert-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.cert-card:hover .cert-media img { transform: scale(1.07); }
.cert-caption {
    padding: 1.2rem 1.4rem;
    font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: .98rem;
    display: flex; align-items: center; gap: .6rem;
}
.cert-caption svg { width: 17px; height: 17px; color: var(--accent); flex: none; }

/* ---------- 14.4 HİZMET BÖLÜMLERİ ---------- */
.service-row {
    display: grid; grid-template-columns: 1fr 1.1fr;
    gap: clamp(2rem, 5vw, 4rem); align-items: center;
    padding-block: clamp(2.4rem, 5vw, 3.8rem);
}
.service-row + .service-row { border-top: 1px solid var(--border); }
.service-row--reverse .service-row-media { order: 2; }
.service-row-media {
    border-radius: 26px; overflow: hidden;
    border: 1px solid var(--border);
    aspect-ratio: 16 / 10; box-shadow: var(--shadow-lg);
}
.service-row-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s ease; }
.service-row:hover .service-row-media img { transform: scale(1.05); }
.service-row-content .service-icon { margin-bottom: 1.2rem; }
.service-row-content h2 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); margin-bottom: .8rem; }
.service-row-content > p { color: var(--text-muted); margin-bottom: 1.3rem; }
.feature-list { display: grid; gap: .6rem; }
.feature-list li { display: flex; gap: .7rem; align-items: flex-start; font-size: .96rem; }
.feature-list svg { width: 19px; height: 19px; color: var(--accent); flex: none; margin-top: .2rem; }

/* ---------- 14.5 İLETİŞİM SAYFASI ---------- */
.contact-info-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
    margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.info-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 20px;
    padding: 1.8rem 1.5rem;
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.info-card:hover { transform: translateY(-6px); border-color: rgba(151, 128, 86, .4); box-shadow: var(--shadow-lg); }
.info-icon {
    width: 52px; height: 52px; border-radius: 14px;
    background: var(--accent-soft); color: var(--accent);
    display: grid; place-items: center; margin-bottom: 1.1rem;
}
.info-icon svg { width: 23px; height: 23px; }
.info-card h3 { font-size: 1.02rem; margin-bottom: .35rem; }
.info-card p, .info-card a { color: var(--text-muted); font-size: .92rem; word-break: break-word; }
.info-card a:hover { color: var(--accent); }

.contact-social {
    display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap;
    margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.contact-social > span { color: var(--text-muted); font-size: .95rem; font-weight: 500; }
.contact-social .social-links { margin-top: 0; }

.contact-layout {
    display: grid; grid-template-columns: 1.1fr 1fr;
    gap: clamp(2rem, 5vw, 3.5rem); align-items: stretch;
}

/* Form */
.contact-form {
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 26px;
    padding: clamp(1.8rem, 4vw, 2.8rem);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.form-group { margin-bottom: 1.2rem; }
.form-group label {
    display: block; font-family: 'Space Grotesk', sans-serif;
    font-weight: 600; font-size: .92rem; margin-bottom: .45rem;
}
.form-group .req { color: var(--accent); }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: .85rem 1.1rem; border-radius: 14px;
    background: var(--bg); border: 1.5px solid var(--border);
    color: var(--text);
    transition: border-color .3s ease, box-shadow .3s ease;
}
.form-group select { cursor: pointer; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft);
}
.form-group input.is-invalid, .form-group textarea.is-invalid { border-color: #E5484D; }
.field-error { display: block; min-height: 1.1em; color: #E5484D; font-size: .82rem; margin-top: .35rem; }

/* Form durum mesajı (AJAX) */
.form-status { display: none; margin: 1rem 0; padding: .95rem 1.2rem; border-radius: 14px; font-size: .94rem; }
.form-status.is-success { display: block; background: rgba(46, 160, 67, .14); border: 1px solid rgba(46, 160, 67, .4); color: #2EA043; }
.form-status.is-error   { display: block; background: rgba(229, 72, 77, .12); border: 1px solid rgba(229, 72, 77, .4); color: #E5484D; }

/* Flash uyarıları (PRG) */
.alert {
    padding: 1rem 1.3rem; border-radius: 14px; margin-bottom: 1.6rem;
    font-size: .95rem; display: flex; gap: .7rem; align-items: flex-start;
}
.alert-success { background: rgba(46, 160, 67, .14); border: 1px solid rgba(46, 160, 67, .4); color: #2EA043; }
.alert-error   { background: rgba(229, 72, 77, .12); border: 1px solid rgba(229, 72, 77, .4); color: #E5484D; }

/* Spam tuzağı (insan gözüne görünmez) */
.hp-field {
    position: absolute !important; left: -9999px !important;
    width: 1px; height: 1px; opacity: 0;
}

/* Harita */
.map-frame {
    position: relative; border-radius: 26px; overflow: hidden;
    border: 1px solid var(--border);
    min-height: 460px; background: var(--bg-elevated);
}
.map-frame iframe {
    position: absolute; inset: 0;
    width: 100%; height: 100%; border: 0; display: block;
    filter: saturate(.92);
}

/* ---------- 14.6 ADIM 4 RESPONSIVE ---------- */
@media (max-width: 1080px) {
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .certs-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-layout { grid-template-columns: 1fr; }
    .map-frame { min-height: 380px; }
}

@media (max-width: 640px) {
    .mv-grid { grid-template-columns: 1fr; }
    .service-row { grid-template-columns: 1fr; }
    .service-row--reverse .service-row-media { order: 0; }
    .form-grid { grid-template-columns: 1fr; }
    .team-grid, .certs-grid, .contact-info-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   15. BLOG (5. adım)
   Arama + kategori filtreleri, sayfalama, detay düzeni,
   sosyal paylaşım ve ilgili yazılar.
   ========================================================================== */

/* ---------- 15.1 ARAMA + KATEGORİ ARAÇLARI ---------- */
.blog-tools {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1.4rem; flex-wrap: wrap;
    margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.blog-search { display: flex; flex: 1; max-width: 380px; min-width: 240px; position: relative; }
.blog-search input {
    width: 100%; padding: .8rem 3.4rem .8rem 1.3rem; border-radius: 999px;
    background: var(--bg-elevated); border: 1.5px solid var(--border); color: var(--text);
    transition: border-color .3s ease, box-shadow .3s ease;
}
.blog-search input::placeholder { color: var(--text-muted); }
.blog-search input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.blog-search button {
    position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
    width: 38px; height: 38px; border-radius: 50%;
    display: grid; place-items: center;
    background: var(--accent); color: var(--accent-ink);
    transition: background-color .3s ease;
}
.blog-search button:hover { background: var(--accent-hover); }
.blog-search svg { width: 17px; height: 17px; }
.blog-cats { display: flex; flex-wrap: wrap; gap: .7rem; }
.blog-cats .filter-btn { text-decoration: none; }

/* ---------- 15.2 SAYFALAMA ---------- */
.pagination {
    display: flex; justify-content: center; align-items: center;
    gap: .55rem; flex-wrap: wrap;
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
}
.page-link {
    min-width: 44px; height: 44px; padding-inline: .8rem;
    display: grid; place-items: center; border-radius: 12px;
    border: 1.5px solid var(--border);
    color: var(--text-muted);
    font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: .92rem;
    transition: border-color .3s ease, color .3s ease, transform .3s ease,
                background-color .3s ease, box-shadow .3s ease;
}
.page-link:hover { border-color: var(--accent); color: var(--text); transform: translateY(-2px); }
.page-link.is-active {
    background: var(--accent); border-color: var(--accent); color: var(--accent-ink);
    box-shadow: var(--shadow-glow);
}
.page-arrow.is-disabled { opacity: .35; pointer-events: none; }
.page-dots { color: var(--text-muted); padding-inline: .2rem; }

/* ---------- 15.3 BLOG DETAY ---------- */
.blog-detail-grid {
    display: grid; grid-template-columns: 1fr 340px;
    gap: clamp(2rem, 5vw, 3.5rem); align-items: start;
}
.blog-cover {
    border-radius: 26px; overflow: hidden;
    border: 1px solid var(--border); aspect-ratio: 16 / 9;
    box-shadow: var(--shadow-lg); margin-bottom: 1.8rem;
}
.blog-cover img { width: 100%; height: 100%; object-fit: cover; }

.post-meta {
    display: flex; flex-wrap: wrap; gap: 1.6rem; align-items: center;
    color: var(--text-muted); font-size: .92rem; margin-bottom: 1.8rem;
}
.post-meta span { display: inline-flex; align-items: center; gap: .5rem; }
.post-meta svg { width: 16px; height: 16px; color: var(--accent); flex: none; }
.post-cat-chip {
    background: var(--accent-soft); color: var(--accent);
    font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
    padding: .42rem .9rem; border-radius: 999px;
}

/* Paylaşım kartı (sticky sidebar) */
.share-card {
    position: sticky; top: 110px;
    background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: 22px;
    padding: 1.8rem;
}
.share-card h3 { font-size: 1.05rem; margin-bottom: 1.2rem; }
.share-btns { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.share-btn {
    display: inline-flex; align-items: center; gap: .55rem;
    padding: .72rem .9rem; border-radius: 12px;
    border: 1.5px solid var(--border);
    font-size: .88rem; font-weight: 600; color: var(--text);
    transition: border-color .3s ease, color .3s ease, transform .3s ease;
}
.share-btn svg { width: 16px; height: 16px; flex: none; }
.share-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.back-link {
    display: inline-flex; align-items: center; gap: .5rem;
    color: var(--accent); font-weight: 600; margin-top: 2.4rem;
    transition: gap .3s ease;
}
.back-link:hover { gap: .85rem; }
.back-link svg { width: 17px; height: 17px; }

/* ---------- 15.4 BLOG RESPONSIVE ---------- */
@media (max-width: 1080px) {
    .blog-detail-grid { grid-template-columns: 1fr; }
    .share-card { position: static; }
}

@media (max-width: 640px) {
    .blog-tools { flex-direction: column; align-items: stretch; }
    .blog-search { max-width: none; }
    .share-btns { grid-template-columns: 1fr 1fr; }
}

/* ==========================================================================
   16. ŞEFFAF HEADER — KOYU HERO ÜZERİNDE OKUNABİLİRLİK (düzeltme)
   --------------------------------------------------------------------------
   Header sayfa başında şeffaftır ve altında her iki temada da koyu
   hero/page-hero bulunur. Bu durumda (scrolled değilken) menü metni
   ve kontroller açık renk olmalıdır — kullanıcı açık temadayken bile.
   Kaydırınca (.scrolled) header kendi zeminini alır ve tema renkleri
   geçerli olur; 404 gibi hero'suz sayfalar (body.has-dark-hero yok)
   bu zorlamadan etkilenmez.
   ========================================================================== */

.has-dark-hero .site-header:not(.scrolled) .nav-link {
    color: rgba(244, 247, 251, .82);
}
.has-dark-hero .site-header:not(.scrolled) .nav-link:hover,
.has-dark-hero .site-header:not(.scrolled) .nav-link.active {
    color: #FFFFFF;
}

.has-dark-hero .site-header:not(.scrolled) .brand-text strong {
    color: #FFFFFF;
}
.has-dark-hero .site-header:not(.scrolled) .brand-text small {
    color: rgba(244, 247, 251, .68);
}

.has-dark-hero .site-header:not(.scrolled) .theme-toggle {
    color: rgba(244, 247, 251, .92);
    border-color: rgba(255, 255, 255, .38);
}
.has-dark-hero .site-header:not(.scrolled) .theme-toggle:hover {
    color: var(--accent-hover);
    border-color: var(--accent);
}

.has-dark-hero .site-header:not(.scrolled) .hamburger {
    border-color: rgba(255, 255, 255, .38);
}
.has-dark-hero .site-header:not(.scrolled) .hamburger span {
    background: #F4F7FB;
}

/* ==========================================================================
   17. YÜKLENEN LOGO (Ayarlar → Görseller → Site Logosu)
   --------------------------------------------------------------------------
   Yatay (geniş) logo için boyutlandırılmıştır; kare logo da kullanılabilir.
   ========================================================================== */
.brand.has-logo .brand-text { display: none; }
.brand-logo {
    height: 54px; width: auto; max-width: 320px;
    object-fit: contain; flex: none;
    transition: transform .35s ease;
}
.brand:hover .brand-logo { transform: scale(1.04); }
.footer-brand .brand-logo { height: 50px; max-width: 300px; }

/* Yatay logo için tablet/mobil kırılımları */
@media (max-width: 1080px) {
    .brand-logo { height: 48px; max-width: 230px; }
}
@media (max-width: 640px) {
    .brand-logo { height: 42px; max-width: 180px; }
    .footer-brand .brand-logo { height: 42px; max-width: 220px; }
}