/* ============================================================
   Delta Proses Otomasyon — T0 Anasayfa
   Venüs Web Standardı v3 · Bootstrap 5 grid + özel bileşenler
   ============================================================ */

/* ---------- Fontlar (self-host, Arimo değişken ağırlık) ---------- */
@font-face {
  font-family: "Arimo";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/arimo-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Arimo";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/arimo-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- Tasarım değişkenleri ---------- */
:root {
  --color-ink: #1d1d1b;          /* ana metin, koyu zemin */
  --color-ink-soft: #3a3a38;     /* ikincil metin, hover */
  --color-muted: #6b6b68;        /* meta metin */
  --color-line: #cccccc;         /* kenarlık, ayırıcı (logo grisi) */
  --color-surface: #f4f4f4;      /* açık bölüm zemini */
  --color-white: #ffffff;
  --color-accent: #ffed00;       /* CTA — yalnızca dolgu, üzerinde siyah metin */
  --color-accent-hover: #f5e300;

  --font-base: "Arimo", Arial, Helvetica, sans-serif;
  --fs-hero: clamp(2.6rem, 6.2vw, 5.4rem);
  --fs-display: clamp(2rem, 4.2vw, 3.4rem);
  --fs-h2: clamp(1.7rem, 3.2vw, 2.6rem);
  --fs-h3: 1.25rem;
  --fs-body: 1rem;
  --fs-lead: clamp(1.05rem, 1.4vw, 1.25rem);
  --fs-small: .875rem;
  --fs-label: .75rem;

  --space-section: clamp(4rem, 9vw, 8rem);
  --space-block: clamp(2rem, 4vw, 3.5rem);
  --header-height: 80px;         /* mobil; ≥992px'te 116px */
  --header-height-scrolled: 64px; /* kaydırınca daralan header; ≥992px'te 80px */
  --radius: 4px;
  --radius-pill: 999px;
  --container-max: 1360px;

  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --duration: .6s;
}

/* ---------- Temel ---------- */
html { scroll-behavior: smooth; }
body {
  padding-top: var(--header-height); /* sabit beyaz header için yer */
  font-family: var(--font-base);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:hover { color: inherit; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.1; letter-spacing: -.02em; margin: 0; }
p { margin: 0 0 1rem; }
:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; }
.container { max-width: var(--container-max); padding-inline: clamp(1.25rem, 4vw, 3rem); }

.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 1000;
  padding: .75rem 1rem; background: var(--color-accent); color: var(--color-ink);
  font-weight: 700; border-radius: var(--radius);
}
.skip-link:focus { top: 1rem; }

/* ---------- Tipografi yardımcıları ---------- */
.section-label {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: var(--fs-label); font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-muted); margin-bottom: 1.25rem;
}
.section-label::before { content: ""; width: 28px; height: 3px; background: var(--color-accent); }
.section-title { font-size: var(--fs-h2); max-width: 22ch; }
.section-display { font-size: var(--fs-display); max-width: 18ch; }
.lead-text { font-size: var(--fs-lead); line-height: 1.55; color: var(--color-ink-soft); }
.text-muted-soft { color: var(--color-muted); }

/* ---------- Butonlar ---------- */
.btn-delta {
  display: inline-flex; align-items: center; gap: .75rem;
  min-height: 48px; padding: .8rem 1.6rem;
  font-weight: 700; font-size: var(--fs-small); letter-spacing: .04em; text-transform: uppercase;
  border-radius: var(--radius-pill); border: 2px solid transparent;
  transition: background var(--duration) var(--ease-out), color var(--duration) var(--ease-out), border-color var(--duration) var(--ease-out), transform var(--duration) var(--ease-out);
}
.btn-delta svg { width: 18px; height: 18px; transition: transform var(--duration) var(--ease-out); }
.btn-delta:hover svg { transform: translateX(4px); }
.btn-delta-primary { background: var(--color-accent); color: var(--color-ink); }
.btn-delta-primary:hover { background: var(--color-accent-hover); color: var(--color-ink); }
.btn-delta-dark { background: var(--color-ink); color: var(--color-white); }
.btn-delta-dark:hover { background: var(--color-ink-soft); color: var(--color-white); }
.btn-delta-outline { border-color: var(--color-ink); color: var(--color-ink); background: transparent; }
.btn-delta-outline:hover { background: var(--color-ink); color: var(--color-white); }
.btn-delta-outline-light { border-color: rgba(255,255,255,.6); color: var(--color-white); background: transparent; }
.btn-delta-outline-light:hover { border-color: var(--color-white); background: var(--color-white); color: var(--color-ink); }

.link-arrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: var(--fs-small); letter-spacing: .04em; text-transform: uppercase;
  border-bottom: 2px solid var(--color-accent); padding-bottom: .15rem;
}
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--duration) var(--ease-out); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- Header (beyaz, sabit) ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-height);
  background: var(--color-white); color: var(--color-ink);
  border-bottom: 1px solid var(--color-line);
  transition: height var(--duration) var(--ease-out), box-shadow var(--duration) var(--ease-out);
}
.site-header.is-scrolled { height: var(--header-height-scrolled); box-shadow: 0 6px 24px rgba(0,0,0,.08); }
.site-header.is-menu-open { height: var(--header-height); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 2rem; }

.brand { display: flex; align-items: center; }
.brand-logo { height: 64px; width: auto; transition: height var(--duration) var(--ease-out); } /* orijinal logo: gri zemin + sarı şerit, olduğu gibi kullanılır */
.site-header.is-scrolled .brand-logo { height: 48px; }
.site-header.is-menu-open .brand-logo { height: 64px; }

.main-nav { display: none; }
.main-nav { height: 100%; }
.main-nav > ul { display: flex; gap: 2rem; list-style: none; margin: 0; padding: 0; height: 100%; }
.main-nav > ul > li { display: flex; align-items: center; height: 100%; } /* hover alanı header boyunca — panele inerken menü kapanmasın */
.main-nav > ul > li > a {
  position: relative; display: inline-flex; align-items: center; gap: .35rem;
  padding: .5rem 0; font-weight: 700; font-size: 1rem; letter-spacing: .01em;
}
.main-nav > ul > li > a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px;
  background: var(--color-accent); transform: scaleX(0); transform-origin: left;
  transition: transform var(--duration) var(--ease-out);
}
.main-nav > ul > li > a:hover::after, .main-nav > ul > li > a[aria-current="page"]::after { transform: scaleX(1); }
.main-nav > ul > li > a svg { width: 12px; height: 12px; opacity: .7; transition: transform .3s; }
.main-nav .has-mega:hover > a svg, .main-nav .has-mega.is-open > a svg, .main-nav .has-mega:focus-within > a svg { transform: rotate(180deg); }
.main-nav .has-mega:hover > a::after, .main-nav .has-mega.is-open > a::after, .main-nav .has-mega:focus-within > a::after { transform: scaleX(1); }

/* Mega menü — header'a göre tam genişlik panel */
.mega {
  position: absolute; left: 0; right: 0; top: calc(100% + 1px); z-index: 5; /* +1px: header'ın alt kenarlığı (top:100% padding kutusunu baz alır) */
  background: var(--color-white); color: var(--color-ink);
  box-shadow: 0 24px 48px rgba(0,0,0,.12);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity .3s var(--ease-out), transform .3s var(--ease-out), visibility 0s .3s;
}
.has-mega:hover .mega, .has-mega.is-open .mega, .has-mega:focus-within .mega { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.mega::before { content: ""; position: absolute; left: 0; right: 0; top: -2px; height: 2px; } /* header kenarlığındaki 1px boşluğu köprüler */
.mega-inner { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); gap: 3rem; align-items: center; padding-top: 2.5rem; padding-bottom: 2.5rem; }
.mega-intro { padding-right: 2rem; border-right: 1px solid var(--color-line); }
.mega-intro h3 { font-size: 1.35rem; margin-bottom: .75rem; }
.mega-intro p { font-size: var(--fs-small); color: var(--color-ink-soft); }
.mega-grid { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.25rem 1.5rem; }
.mega-grid-3 { grid-template-columns: repeat(3, 1fr); }
.mega-grid-5 { grid-template-columns: repeat(5, 1fr); }
.mega-grid-6 { grid-template-columns: repeat(6, 1fr); gap: 1rem; }
.mega-grid-6 .mega-item strong { font-size: .875rem; }
.mega-grid-6 .mega-item small { font-size: .75rem; }
.mega-item { display: grid; gap: .6rem; padding: 0; }
.mega-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .6s var(--ease-out), filter .3s; }
.mega-item:hover img { transform: scale(1.03); }
.mega-item span { display: grid; gap: .15rem; }
.mega-item strong { font-size: .9375rem; line-height: 1.25; }
.mega-item small { font-size: .8125rem; color: var(--color-muted); line-height: 1.4; }
.mega-item strong { position: relative; }
.mega-item:hover strong { text-decoration: underline; text-decoration-color: var(--color-accent); text-decoration-thickness: 2px; text-underline-offset: 4px; }
.mega-grid-5 .mega-item strong { font-size: .875rem; }

.header-tools { display: flex; align-items: center; gap: 1.25rem; }
.lang-switch { display: flex; gap: .25rem; font-size: .9375rem; font-weight: 700; letter-spacing: .06em; }
.lang-switch a { padding: .35rem .5rem; opacity: .6; }
.lang-switch a[aria-current="true"] { opacity: 1; border-bottom: 2px solid var(--color-accent); }
.header-cta { display: none; }
.header-partner { display: none; align-items: center; }
.header-partner img { height: 88px; width: auto; transition: height var(--duration) var(--ease-out); }
.site-header.is-scrolled .header-partner img { height: 64px; }

.nav-toggle {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 48px; height: 48px; padding: 0 10px; background: transparent; border: 0; color: inherit; cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; background: currentColor; transition: transform .35s var(--ease-out), opacity .35s; }
.site-header.is-menu-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.is-menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.is-menu-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobil menü */
.mobile-menu {
  position: fixed; inset: var(--header-height) 0 0 0; z-index: 99;
  background: var(--color-white); color: var(--color-ink);
  padding: 1.5rem 0 2rem; overflow-y: auto;
  transform: translateY(-8px); opacity: 0; visibility: hidden;
  transition: opacity .35s var(--ease-out), transform .35s var(--ease-out), visibility 0s .35s;
}
.mobile-menu.is-open { transform: none; opacity: 1; visibility: visible; transition-delay: 0s; }
.mobile-menu ul { list-style: none; margin: 0; padding: 0; }
.mobile-menu > .container > ul > li { border-bottom: 1px solid var(--color-line); }
.mobile-menu > .container > ul > li > a,
.mobile-menu > .container > ul > li > button {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  padding: 1rem 0; font-size: 1.25rem; font-weight: 700; background: none; border: 0; color: inherit; text-align: left;
}
.mobile-menu ul ul { padding: 0 0 1rem 1rem; display: none; }
.mobile-menu li.is-open ul { display: block; }
.mobile-menu ul ul a { display: block; padding: .5rem 0; color: var(--color-ink-soft); }
.mobile-menu-footer { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; padding-top: 1.5rem; }

@media (min-width: 992px) {
  :root { --header-height: 116px; --header-height-scrolled: 84px; }
  .brand-logo { height: 90px; }
  .site-header.is-scrolled .brand-logo { height: 60px; }
  .site-header.is-menu-open .brand-logo { height: 90px; }
  .main-nav { display: block; }
  .header-cta { display: inline-flex; }
}
@media (min-width: 1200px) {
  .header-partner { display: inline-flex; }
  .nav-toggle, .mobile-menu { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: calc(100svh - var(--header-height)); display: flex; align-items: flex-end;
  background: var(--color-ink); color: var(--color-white); overflow: hidden; isolation: isolate;
}
.hero-slides { position: absolute; inset: 0; z-index: -1; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.2s var(--ease-out); }
.hero-slide.is-active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.06); transition: transform 7s linear; }
.hero-slide.is-active img { transform: scale(1); }
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(29,29,27,.55) 0%, rgba(29,29,27,.15) 55%, rgba(29,29,27,0) 100%),
    linear-gradient(to top, rgba(29,29,27,.85) 0%, rgba(29,29,27,.45) 45%, rgba(29,29,27,.2) 100%);
}
.hero-content { position: relative; padding-block: 4rem 6rem; width: 100%; }
.hero-brand { font-size: var(--fs-label); font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 1rem; }
.hero-title { font-size: var(--fs-hero); max-width: 14ch; margin-bottom: 1.25rem; }
.hero-tagline { font-size: var(--fs-lead); font-weight: 700; max-width: 34ch; margin-bottom: .75rem; }
.hero-text { max-width: 60ch; color: rgba(255,255,255,.82); margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem 1rem; }

.hero-footer {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem;
  margin-top: 3rem; padding-top: 1.25rem; border-top: 1px solid rgba(255,255,255,.2);
}
.hero-caption { font-size: var(--fs-small); color: rgba(255,255,255,.75); }
.hero-caption strong { color: var(--color-white); }
.hero-nav { display: flex; align-items: center; gap: .75rem; }
.hero-dots { display: flex; gap: .5rem; }
.hero-dots button {
  width: 44px; height: 44px; padding: 0; background: none; border: 0; cursor: pointer; display: grid; place-items: center;
}
.hero-dots button span { display: block; width: 28px; height: 3px; background: rgba(255,255,255,.35); transition: background .3s; }
.hero-dots button[aria-current="true"] span { background: var(--color-accent); }
.hero-arrow {
  width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.4); border-radius: 50%; background: none; color: inherit; cursor: pointer;
  transition: background .3s, border-color .3s;
}
.hero-arrow:hover { background: var(--color-white); color: var(--color-ink); border-color: var(--color-white); }
.hero-arrow svg { width: 18px; height: 18px; }
.hero-counter { font-variant-numeric: tabular-nums; font-size: var(--fs-small); letter-spacing: .1em; }

@media (min-width: 992px) {
  .hero-content { padding-bottom: 6.5rem; }
  .hero-nav { padding-right: 7rem; } /* sabit WhatsApp butonuna yer bırak */
}

/* ---------- Bölüm düzeni ---------- */
.section { padding: var(--space-section) 0; }
.section-surface { background: var(--color-surface); }
.section-dark { background: var(--color-ink); color: var(--color-white); }
.section-dark .section-label { color: rgba(255,255,255,.6); }
.section-dark .lead-text { color: rgba(255,255,255,.78); }
.section-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1.5rem; margin-bottom: var(--space-block); }

/* ---------- Hakkımızda ---------- */
.about-grid { display: grid; gap: 2.5rem; }
.about-label { grid-column: 1 / -1; margin-bottom: 0; } /* etiket ayrı satırda: başlık ve metin aynı hizadan başlar */
.about-text p:last-child { margin-bottom: 0; }
.about-image { position: relative; }
.about-image img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.about-image-tag {
  position: absolute; left: 0; bottom: 0; padding: .75rem 1.25rem;
  background: var(--color-accent); color: var(--color-ink); font-size: var(--fs-label); font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
}
@media (min-width: 992px) {
  .about-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 1.5rem 4rem; align-items: start; }
}

.stats { display: grid; gap: 1px; background: var(--color-line); margin-top: var(--space-block); }
.stat { background: var(--color-white); padding: 1.75rem 1.5rem; }
.stat-icon { display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 1rem; background: var(--color-accent); color: var(--color-ink); }
.stat-icon svg { width: 24px; height: 24px; }
.stat-value { font-size: clamp(2rem, 3.6vw, 3rem); font-weight: 700; letter-spacing: -.03em; line-height: 1; }
.stat-value small { font-size: .5em; font-weight: 700; margin-left: .15em; }
.stat-label { margin-top: .6rem; font-size: var(--fs-label); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--color-muted); }
@media (min-width: 576px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .stats { grid-template-columns: repeat(4, 1fr); } }


/* ---------- Faaliyet alanları (4 kart) + slider okları ---------- */
.section-head-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }
.slider-nav { display: flex; gap: .5rem; }
.slider-arrow {
  width: 48px; height: 48px; display: grid; place-items: center;
  border: 1px solid currentColor; border-radius: 50%; background: none; color: inherit; cursor: pointer;
  transition: background .3s, color .3s, border-color .3s, opacity .3s;
}
.slider-arrow svg { width: 20px; height: 20px; }
.slider-arrow:hover { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-ink); }
.slider-arrow[disabled] { opacity: .3; cursor: default; }
.slider-arrow[disabled]:hover { background: none; border-color: currentColor; color: inherit; }

.service-grid { display: grid; gap: 1.25rem; }
.service-card {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  background: var(--color-white); color: var(--color-ink);
  transition: transform var(--duration) var(--ease-out), box-shadow var(--duration) var(--ease-out);
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,.35); }
.service-card-media { overflow: hidden; }
.service-card-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.service-card:hover .service-card-media img { transform: scale(1.05); }
.service-card-body { display: flex; flex-direction: column; flex: 1; padding: 1.5rem; gap: .75rem; }
.service-card-index { display: inline-block; padding: .2rem .5rem; font-size: var(--fs-label); font-weight: 700; letter-spacing: .14em; background: var(--color-accent); color: var(--color-ink); align-self: flex-start; }
.service-card h3 { font-size: var(--fs-h3); }
.service-card p { color: var(--color-ink-soft); font-size: var(--fs-small); margin: 0; flex: 1; }
.service-card-link { display: inline-flex; align-items: center; gap: .5rem; font-size: var(--fs-small); font-weight: 700; margin-top: .5rem; border-bottom: 2px solid var(--color-accent); align-self: flex-start; padding-bottom: .1rem; }
.service-card-link svg { width: 16px; height: 16px; transition: transform var(--duration) var(--ease-out); }
.service-card:hover .service-card-link svg { transform: translateX(4px); }
.service-card > a.stretched::after { content: ""; position: absolute; inset: 0; }
@media (min-width: 576px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1200px) { .service-grid { grid-template-columns: repeat(4, 1fr); } }

/* ---------- Projeler ---------- */
.project-grid { display: grid; gap: 1.5rem; }
.project-card { position: relative; display: block; background: var(--color-white); }
.project-card-media { overflow: hidden; }
.project-card-media img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.project-card:hover .project-card-media img { transform: scale(1.04); }
.project-card-body { padding: 1.5rem 1.5rem 1.75rem; }
.project-card-meta { display: flex; flex-wrap: wrap; gap: .5rem 1rem; font-size: var(--fs-label); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--color-muted); margin-bottom: .75rem; }
.project-card-meta span:first-child { color: var(--color-ink); }
.project-card h3 { font-size: var(--fs-h3); margin-bottom: .6rem; }
.project-card p { color: var(--color-ink-soft); font-size: var(--fs-small); margin: 0; }
@media (min-width: 768px) { .project-grid { grid-template-columns: repeat(3, 1fr); } }

.category-strip { margin-top: var(--space-section); }
.category-scroller {
  display: flex; gap: 1rem; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 1rem;
  scrollbar-width: none;
}
.category-scroller::-webkit-scrollbar { display: none; }
.category-item { flex: 0 0 200px; scroll-snap-align: start; position: relative; display: block; }
.category-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; filter: saturate(.85); transition: filter .4s, transform var(--duration) var(--ease-out); }
.category-item:hover img { filter: saturate(1); }
.category-item span { display: block; padding: .75rem 0 0; font-size: var(--fs-small); font-weight: 700; line-height: 1.3; }
.category-item::before { content: ""; position: absolute; left: 0; top: 0; width: 0; height: 3px; background: var(--color-accent); transition: width var(--duration) var(--ease-out); }
.category-item:hover::before { width: 100%; }
@media (min-width: 992px) { .category-item { flex-basis: 240px; } }

/* ---------- Kapanış CTA ---------- */
.cta {
  position: relative; color: var(--color-white); background: var(--color-ink); overflow: hidden; isolation: isolate;
}
.cta-bg { position: absolute; inset: 0; z-index: -1; }
.cta-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .35; }
.cta-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(29,29,27,.9), rgba(29,29,27,.5)); }
.cta-inner { padding: var(--space-section) 0; display: grid; gap: 2rem; }
.cta-title { font-size: var(--fs-display); max-width: 16ch; }
.cta-text { color: rgba(255,255,255,.8); max-width: 48ch; }
@media (min-width: 992px) { .cta-inner { grid-template-columns: 1fr auto; align-items: center; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-surface); color: var(--color-ink); border-top: 3px solid var(--color-accent); }
.footer-main { padding: var(--space-block) 0; display: grid; gap: 2.5rem; }
.footer-brand img { height: 64px; width: auto; }
.footer-slogan { font-weight: 700; font-size: var(--fs-lead); margin: 1.25rem 0 .5rem; }
.footer-brand p { color: var(--color-ink-soft); font-size: var(--fs-small); max-width: 36ch; }
.footer-heading { font-size: var(--fs-label); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--color-muted); margin-bottom: 1rem; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.footer-links a { font-size: var(--fs-small); font-weight: 700; }
.footer-links a:hover { color: var(--color-ink-soft); text-decoration: underline; text-decoration-color: var(--color-accent); text-underline-offset: 4px; }
.footer-contact { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; font-size: var(--fs-small); }
.footer-contact li { display: grid; grid-template-columns: 20px 1fr; gap: .75rem; align-items: start; }
.footer-contact svg { width: 18px; height: 18px; margin-top: .15rem; color: var(--color-muted); }
.footer-contact a { font-weight: 700; }
.footer-bottom { border-top: 1px solid var(--color-line); padding: 1.25rem 0; }
.footer-bottom .container { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; align-items: center; justify-content: space-between; font-size: var(--fs-label); color: var(--color-muted); }
.footer-legal { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; list-style: none; margin: 0; padding: 0; }
.footer-legal button { background: none; border: 0; padding: 0; color: inherit; font: inherit; cursor: pointer; }
.footer-legal a:hover, .footer-legal button:hover { color: var(--color-ink); text-decoration: underline; }
@media (min-width: 768px) { .footer-main { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2rem; } }

/* ---------- WhatsApp ---------- */
.whatsapp-button {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 90;
  display: inline-flex; align-items: center; gap: .6rem;
  min-width: 56px; height: 56px; padding: 0 1rem 0 .9rem;
  background: #25d366; color: var(--color-white); border-radius: var(--radius-pill);
  font-weight: 700; font-size: var(--fs-small); box-shadow: 0 8px 24px rgba(0,0,0,.18);
  transition: transform var(--duration) var(--ease-out);
}
.whatsapp-button:hover { transform: translateY(-3px); color: var(--color-white); }
.whatsapp-button svg { width: 26px; height: 26px; flex: none; }
.whatsapp-button span { display: none; }
@media (min-width: 768px) { .whatsapp-button span { display: inline; } }

/* ---------- Reveal animasyonu ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-slide img { transform: none; }
}

/* ============================================================
   İÇ SAYFALAR — T1 kurumsal / metin
   ============================================================ */
.page-hero {
  position: relative; display: flex; align-items: flex-end; min-height: 420px;
  background: var(--color-ink); color: var(--color-white); overflow: hidden; isolation: isolate;
}
.page-hero-media { position: absolute; inset: 0; z-index: -1; }
.page-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.page-hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(29,29,27,.9) 0%, rgba(29,29,27,.45) 60%, rgba(29,29,27,.25) 100%); }
.page-hero-content { position: relative; padding-block: 3rem 2.5rem; }
.page-title { font-size: var(--fs-display); max-width: 20ch; margin: .75rem 0 1rem; }
.page-lead { font-size: var(--fs-lead); color: rgba(255,255,255,.85); max-width: 60ch; margin: 0; }
@media (min-width: 992px) { .page-hero { min-height: 480px; } .page-hero-content { padding-block: 4rem 3.5rem; } }

.breadcrumb-nav ol { display: flex; flex-wrap: wrap; gap: .25rem .5rem; list-style: none; margin: 0; padding: 0; font-size: var(--fs-label); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.7); }
.breadcrumb-nav li + li::before { content: "/"; margin-right: .5rem; opacity: .5; }
.breadcrumb-nav a:hover { color: var(--color-accent); }
.breadcrumb-nav [aria-current="page"] { color: var(--color-white); }

.prose { max-width: 68ch; }
.prose p { margin-bottom: 1.15rem; }
.prose p:first-of-type { font-size: var(--fs-lead); line-height: 1.55; color: var(--color-ink-soft); }
.prose h2 { font-size: var(--fs-h2); margin: 2.5rem 0 1rem; }
.prose h3 { font-size: var(--fs-h3); margin: 2rem 0 .75rem; }
.prose ul { padding-left: 1.25rem; margin-bottom: 1.15rem; }
.prose li { margin-bottom: .35rem; }

.content-grid { display: grid; gap: 2.5rem; }
.content-aside { display: grid; gap: 1.5rem; align-content: start; }
.aside-image img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.aside-card { background: var(--color-surface); padding: 1.5rem; }
.aside-card h3 { font-size: 1rem; margin-bottom: .75rem; }
.aside-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; font-size: var(--fs-small); }
.aside-card li { display: flex; gap: .6rem; align-items: flex-start; }
.aside-card li::before { content: ""; flex: none; width: 8px; height: 8px; margin-top: .45rem; background: var(--color-accent); }
@media (min-width: 992px) {
  .content-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 5rem; align-items: start; }
  .content-aside { position: sticky; top: calc(var(--header-height-scrolled) + 1.5rem); }
}

/* Belgeler / ortaklıklar */
.cert-grid { display: grid; gap: 1.25rem; }
.cert-card { background: var(--color-white); padding: 1.75rem; display: grid; gap: .75rem; align-content: start; border-top: 3px solid var(--color-accent); }
.cert-card-logo { height: 72px; display: flex; align-items: center; }
.cert-card-logo img { height: 100%; width: auto; }
.cert-card-year { font-size: var(--fs-label); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--color-muted); }
.cert-card h3 { font-size: var(--fs-h3); }
.cert-card p { margin: 0; font-size: var(--fs-small); color: var(--color-ink-soft); }
@media (min-width: 768px) { .cert-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1200px) { .cert-grid { grid-template-columns: repeat(4, 1fr); } }

/* Vurgu maddeleri */
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.25rem; }
.feature-item { display: grid; grid-template-columns: 44px 1fr; gap: 1rem; align-items: start; }
.feature-icon { width: 44px; height: 44px; display: grid; place-items: center; background: var(--color-accent); color: var(--color-ink); }
.feature-icon svg { width: 22px; height: 22px; }
.feature-item h3 { font-size: 1.05rem; margin-bottom: .25rem; }
.feature-item p { margin: 0; font-size: var(--fs-small); color: var(--color-ink-soft); }
@media (min-width: 768px) { .feature-list { grid-template-columns: repeat(3, 1fr); gap: 2rem; } .feature-item { grid-template-columns: 1fr; } }

/* Ülkeler / platformlar */
.chip-list { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; margin: 0; padding: 0; }
.chip { display: inline-flex; align-items: center; gap: .5rem; padding: .5rem .9rem; border: 1px solid var(--color-line); border-radius: var(--radius-pill); font-size: var(--fs-small); font-weight: 700; background: var(--color-white); }
.chip-strong { background: var(--color-ink); color: var(--color-white); border-color: var(--color-ink); }
.section-dark .chip { background: transparent; color: var(--color-white); border-color: rgba(255,255,255,.3); }
.section-dark .chip-strong { background: var(--color-accent); color: var(--color-ink); border-color: var(--color-accent); }
.split { display: grid; gap: 2rem; }
@media (min-width: 992px) { .split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 4rem; align-items: start; } }

/* ---------- İç sayfa ek bileşenleri ---------- */
.page-hero-compact { min-height: 0; background: var(--color-ink); }
.page-hero-compact .page-hero-content { padding-block: 2.5rem 2rem; }
.aside-links { list-style: none; margin: 0; padding: 0; display: grid; }
.aside-links li { border-bottom: 1px solid var(--color-line); }
.aside-links li:last-child { border-bottom: 0; }
.aside-links a { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .7rem 0; font-size: var(--fs-small); font-weight: 700; }
.aside-links a svg { width: 16px; height: 16px; flex: none; transition: transform var(--duration) var(--ease-out); }
.aside-links a:hover svg { transform: translateX(4px); }
.aside-card.aside-card-scope { border-top: 3px solid var(--color-accent); }
.aside-card-dark { background: var(--color-ink); color: var(--color-white); }
.aside-card-dark h3 { color: var(--color-white); }
.aside-card-dark p { font-size: var(--fs-small); color: rgba(255,255,255,.75); }
.aside-card-dark .btn-delta { margin-bottom: .75rem; }
.aside-phone { display: block; font-weight: 700; font-size: 1.05rem; }
.scope-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; font-size: var(--fs-small); }
.scope-list li { display: grid; grid-template-columns: 20px 1fr; gap: .6rem; align-items: start; }
.aside-card .scope-list li::before { content: none; }
.scope-list svg { width: 18px; height: 18px; color: var(--color-ink); background: var(--color-accent); padding: 2px; margin-top: .1rem; }
.callout { display: grid; gap: 1.25rem; padding: 1.5rem; margin: 1.75rem 0; background: var(--color-surface); border-left: 4px solid var(--color-accent); }
.callout img { height: 72px; width: auto; }
.callout h3 { margin: 0 0 .5rem; font-size: var(--fs-h3); }
.callout p { margin: 0; font-size: var(--fs-small); }
@media (min-width: 576px) { .callout { grid-template-columns: auto 1fr; align-items: start; } }

/* Galeri */
.gallery-grid { display: grid; gap: 1rem; grid-template-columns: repeat(2, 1fr); }
.gallery-item { display: block; overflow: hidden; background: var(--color-line); }
.gallery-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .8s var(--ease-out); }
.gallery-grid[data-ratio="16 / 9"] .gallery-item img { aspect-ratio: 16 / 9; }
.gallery-item:hover img { transform: scale(1.04); }
@media (min-width: 768px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1200px) { .gallery-grid { grid-template-columns: repeat(4, 1fr); } .gallery-grid[data-ratio="16 / 9"] { grid-template-columns: repeat(3, 1fr); } }
.lightbox { position: fixed; inset: 0; z-index: 200; display: none; align-items: center; justify-content: center; background: rgba(29,29,27,.94); padding: 3rem 1rem; }
.lightbox.is-open { display: flex; }
.lightbox img { max-width: min(1400px, 100%); max-height: 82vh; object-fit: contain; }
.lightbox-caption { position: absolute; left: 1.5rem; bottom: 1.25rem; color: rgba(255,255,255,.8); font-size: var(--fs-small); }
.lightbox-close, .lightbox-prev, .lightbox-next { position: absolute; width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.4); border-radius: 50%; background: none; color: var(--color-white); cursor: pointer; }
.lightbox-close { top: 1rem; right: 1rem; }
.lightbox-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1rem; top: 50%; transform: translateY(-50%); }
.lightbox button svg { width: 20px; height: 20px; }
.lightbox button:hover { background: var(--color-accent); color: var(--color-ink); border-color: var(--color-accent); }

/* Projeler — filtre */
.filter-bar { display: grid; gap: 1.25rem; padding: 1.5rem; margin-bottom: 2rem; background: var(--color-surface); }
.filter-group { display: grid; gap: .6rem; }
.filter-label { font-size: var(--fs-label); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--color-muted); }
.filter-chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.filter-chip { padding: .45rem .9rem; border: 1px solid var(--color-line); border-radius: var(--radius-pill); background: var(--color-white); font-size: var(--fs-small); font-weight: 700; cursor: pointer; transition: background .25s, border-color .25s, color .25s; }
.filter-chip:hover { border-color: var(--color-ink); }
.filter-chip[aria-pressed="true"] { background: var(--color-ink); color: var(--color-white); border-color: var(--color-ink); }
.filter-count { margin: 0; font-size: var(--fs-small); color: var(--color-muted); }
.project-card[hidden] { display: none; }

/* Referans satırları — logo · müşteri + yapılan iş · konum (Referanslar.docx düzeni) */
.ref-list { display: grid; gap: 1px; background: var(--color-line); border: 1px solid var(--color-line); }
.ref-row { display: grid; grid-template-columns: 96px 1fr; gap: .75rem 1.25rem; align-items: center; padding: 1rem 1.25rem; background: var(--color-white); }
.ref-row[hidden] { display: none; }
.ref-logo { display: flex; align-items: center; justify-content: center; width: 96px; height: 64px; background: var(--color-white); border: 1px solid var(--color-line); padding: .35rem; overflow: hidden; }
.ref-logo img { display: block; width: 100%; height: 100%; object-fit: contain; }
.ref-logo-text { font-weight: 700; font-size: 1rem; letter-spacing: .06em; color: var(--color-muted); }
.ref-body { display: block; min-width: 0; }
.ref-cat, .ref-customer { display: block; margin-bottom: .15rem; }
.ref-cat { font-size: var(--fs-label); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--color-muted); }
.ref-customer { font-size: 1.05rem; line-height: 1.3; text-transform: uppercase; }
.ref-job { display: inline; font-size: var(--fs-small); color: var(--color-ink-soft); line-height: 1.6; }
.ref-job + .ref-job::before { content: "·"; margin: 0 .5em; color: #b8a800; font-weight: 700; } /* iş kalemleri yan yana akar, sarı nokta ayırıcı */
.ref-location { font-size: var(--fs-label); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--color-ink); grid-column: 2; }
@media (min-width: 768px) { .ref-row { grid-template-columns: 128px 1fr 160px; padding: 1.25rem 1.5rem; } .ref-logo { width: 128px; height: 80px; } .ref-location { grid-column: auto; text-align: right; } }
@media (min-width: 992px) { .ref-row { grid-template-columns: 160px 1fr 180px; } .ref-logo { width: 160px; height: 96px; } }
.empty-state { text-align: center; padding: 3rem 1rem; }
.empty-state h3 { font-size: var(--fs-h3); margin-bottom: .5rem; }
.empty-state p { color: var(--color-muted); margin-bottom: 1.25rem; }
.meta-list { display: grid; grid-template-columns: auto 1fr; gap: .5rem 1rem; margin: 0; font-size: var(--fs-small); }
.meta-list dt { font-weight: 700; color: var(--color-muted); }
.meta-list dd { margin: 0; }
.service-grid-3 { grid-template-columns: repeat(1, 1fr); }
@media (min-width: 576px) { .service-grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .service-grid-3 { grid-template-columns: repeat(3, 1fr) !important; } }

/* Formlar */
.contact-grid { display: grid; gap: 3rem; }
@media (min-width: 992px) { .contact-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 5rem; align-items: start; } }
.contact-list { list-style: none; margin: 1.5rem 0; padding: 0; display: grid; gap: 1rem; }
.contact-list li { display: grid; grid-template-columns: 130px 1fr; gap: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--color-line); }
.contact-label { font-size: var(--fs-label); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--color-muted); padding-top: .2rem; }
.contact-list a { font-weight: 700; }
.contact-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.form-card { background: var(--color-surface); padding: clamp(1.5rem, 3vw, 2.5rem); }
.delta-form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: .35rem; }
.field label { font-size: var(--fs-small); font-weight: 700; }
.field abbr { text-decoration: none; color: #c0392b; }
.field-row { display: grid; gap: 1.1rem; }
@media (min-width: 576px) { .field-row { grid-template-columns: 1fr 1fr; } }
.delta-form .form-control, .delta-form .form-select { border: 1px solid var(--color-line); border-radius: var(--radius); padding: .8rem .9rem; font-family: inherit; font-size: 1rem; background: var(--color-white); min-height: 48px; box-shadow: none; }
.delta-form .form-control:focus, .delta-form .form-select:focus { border-color: var(--color-ink); box-shadow: 0 0 0 3px rgba(255,237,0,.5); outline: 0; }
.delta-form .is-invalid { border-color: #c0392b; }
.field-error { display: none; font-size: .8125rem; color: #c0392b; }
.field.has-error .field-error { display: block; }
.field-check { grid-template-columns: 20px 1fr; align-items: start; gap: .6rem; }
.field-check input { width: 20px; height: 20px; margin-top: .15rem; accent-color: var(--color-ink); }
.field-check label { font-weight: 400; font-size: .875rem; line-height: 1.5; }
.field-check .field-error { grid-column: 1 / -1; }
.field-help { font-size: .75rem; color: var(--color-muted); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: .5rem; }
.form-status { margin: 0; font-size: var(--fs-small); font-weight: 700; }
.form-status.is-error { color: #c0392b; }
.map-section { background: var(--color-surface); }
.map-embed iframe { display: block; width: 100%; height: 420px; border: 0; filter: grayscale(.2); }

/* Sistem sayfaları */
.system-page { display: flex; align-items: center; min-height: calc(100svh - var(--header-height)); padding: var(--space-section) 0; background: var(--color-surface); }
.system-inner { max-width: 720px; }
.system-code { font-size: var(--fs-label); font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--color-muted); margin-bottom: 1rem; }
.system-inner .section-display { margin-bottom: 1rem; max-width: none; }
.system-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }
.system-links { list-style: none; margin: 1.5rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; }
.system-links a { display: inline-flex; align-items: center; gap: .4rem; font-weight: 700; font-size: var(--fs-small); border-bottom: 2px solid var(--color-accent); }
.system-links svg { width: 14px; height: 14px; }
.search-form { display: flex; gap: .75rem; margin-top: 1.5rem; max-width: 560px; }
.search-form .form-control { flex: 1; min-height: 48px; border: 1px solid var(--color-line); border-radius: var(--radius); padding: .6rem .9rem; }

/* Yasal / kurumsal kimlik */
.prose-legal { max-width: 80ch; }
.prose-legal h2 { font-size: 1.25rem; margin: 2rem 0 .75rem; }
.prose-legal p:first-of-type { font-size: var(--fs-body); color: inherit; }
.notice { padding: 1rem 1.25rem; margin-bottom: 1.5rem; background: #fff8c2; border-left: 4px solid var(--color-accent); font-size: var(--fs-small); }
.link-inline { background: none; border: 0; padding: 0; font: inherit; color: inherit; text-decoration: underline; cursor: pointer; }
.brand-grid { display: grid; gap: 1.25rem; margin-bottom: 2rem; }
@media (min-width: 768px) { .brand-grid { grid-template-columns: repeat(3, 1fr); } }
.brand-tile { margin: 0; display: grid; gap: 0; border: 1px solid var(--color-line); }
.brand-tile img { width: 100%; height: 220px; object-fit: contain; padding: 2rem; }
.brand-tile-light img { background: var(--color-white); }
.brand-tile-dark img { background: var(--color-ink); }
.brand-tile figcaption { padding: .75rem 1rem; font-size: var(--fs-small); font-weight: 700; background: var(--color-surface); }
.download-list { display: grid; gap: 1px; background: var(--color-line); border: 1px solid var(--color-line); }
.download-item { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem 1.25rem; background: var(--color-white); }
.download-item span { display: grid; }
.download-item small { color: var(--color-muted); font-size: .8125rem; }
.download-item svg { width: 20px; height: 20px; flex: none; }
.download-item:hover { background: var(--color-surface); }
.download-item[aria-disabled="true"] { opacity: .5; pointer-events: none; }
.color-grid { display: grid; gap: 1rem; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px) { .color-grid { grid-template-columns: repeat(4, 1fr); } }
.color-tile { display: grid; gap: .25rem; }
.color-swatch { display: block; height: 120px; border: 1px solid var(--color-line); margin-bottom: .5rem; }
.swatch-ink { background: var(--color-ink); } .swatch-accent { background: var(--color-accent); } .swatch-line { background: var(--color-line); } .swatch-white { background: var(--color-white); }
.color-tile small { color: var(--color-muted); }
.aside-card .aside-links li::before { content: none; }
.prose .callout p { font-size: var(--fs-small); line-height: 1.6; color: var(--color-ink-soft); }