/* =====================================================================
   Mehmet Şerif Yavuz — Sağlık Psikolojisi & Longevity
   Tasarım Sistemi (Design System)
   ===================================================================== */

/* ---- Design Tokens ---- */
:root {
  /* Navy / authority */
  --navy-900: #0B1B2B;
  --navy-800: #102A40;
  --navy-700: #173853;
  --navy-600: #1F4A6B;

  /* Ink / text */
  --ink:       #16242F;
  --ink-soft:  #51606C;
  --ink-faint: #8A98A2;

  /* Light surfaces */
  --paper:     #FFFFFF;
  --bone:      #F6F4EF;  /* warm off-white */
  --sand:      #ECE3D4;  /* beige / sand */
  --sand-soft: #F3EDE2;
  --line:      #E4E7EA;  /* hairline on light */
  --line-navy: rgba(255,255,255,.14);

  /* Accent — used sparingly */
  --gold:      #B0894F;
  --gold-soft: #C9A56A;
  --gold-tint: rgba(176,137,79,.12);

  /* Type */
  --serif: "Newsreader", Georgia, "Times New Roman", serif;        /* başlıklar */
  --serif-logo: "Fraunces", Georgia, "Times New Roman", serif;     /* yalnızca logo/wordmark */
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Layout */
  --container: 1180px;
  --container-narrow: 820px;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(11,27,43,.05), 0 4px 16px rgba(11,27,43,.05);
  --shadow-md: 0 6px 14px rgba(11,27,43,.06), 0 18px 40px rgba(11,27,43,.09);
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---- Reset / base ---- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }

/* ---- Accessibility ---- */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 3px;
}
.skip-link {
  position: absolute; left: 16px; top: -60px;
  background: var(--navy-900); color: #fff;
  padding: 10px 18px; border-radius: 8px; z-index: 200;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 16px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 460;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--navy-900);
}
.display {
  font-size: clamp(2.4rem, 1.4rem + 4.4vw, 4.3rem);
  font-weight: 450;
  line-height: 1.1;
  letter-spacing: -.02em;
}
h2.section-title {
  font-size: clamp(1.9rem, 1.3rem + 2.4vw, 3rem);
}
h3 { font-size: 1.4rem; line-height: 1.2; }
p { color: var(--ink-soft); }
.lead {
  font-size: clamp(1.08rem, 1rem + .4vw, 1.3rem);
  line-height: 1.65;
  color: var(--ink-soft);
}

.eyebrow {
  font-family: var(--sans);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--gold);
  opacity: .7;
}
.eyebrow.center { justify-content: center; }

/* ---- Layout ---- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.narrow { max-width: var(--container-narrow); }
.section { padding-block: clamp(64px, 5vw + 40px, 120px); }
.section--bone { background: var(--bone); }
.section--sand { background: var(--sand-soft); }
.section-head { max-width: 640px; margin-bottom: 52px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head .eyebrow { margin-bottom: 18px; }
.section-head p { margin-top: 18px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .95rem; font-weight: 600;
  padding: 15px 28px; border-radius: 100px;
  transition: transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease);
  will-change: transform;
}
.btn svg { width: 17px; height: 17px; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--gold); color: #fff; }
.btn-primary:hover { background: var(--gold-soft); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(176,137,79,.32); }
.btn-dark { background: var(--navy-900); color: #fff; }
.btn-dark:hover { background: var(--navy-700); transform: translateY(-2px); }
.btn-ghost { border: 1px solid rgba(255,255,255,.3); color: #fff; }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.06); }
.btn-ghost-dark { border: 1px solid var(--line); color: var(--ink); }
.btn-ghost-dark:hover { border-color: var(--navy-900); transform: translateY(-2px); }
.text-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: .92rem; color: var(--navy-800);
  border-bottom: 1px solid transparent; padding-bottom: 2px;
  transition: gap .25s var(--ease), border-color .25s var(--ease);
}
.text-link svg { width: 15px; height: 15px; }
.text-link:hover { gap: 12px; border-color: var(--gold); color: var(--gold); }

/* ---- Header ---- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .35s var(--ease), box-shadow .35s var(--ease), padding .35s var(--ease);
  padding-block: 20px;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; max-width: 1320px; }
.brand { display: flex; flex-direction: column; line-height: 1.2; }
.brand b {
  font-family: var(--serif-logo); font-weight: 500; font-size: 1.22rem; line-height: 1.2;
  color: #fff; letter-spacing: .01em; transition: color .35s var(--ease);
}
.brand span {
  font-size: .62rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--gold-soft); margin-top: 7px; line-height: 1.5; font-weight: 500;
}
/* Opsiyonel YENİ logo (wordmark) — yalnız Customizer'da "Yeni" seçilince kullanılır */
.brand--logo { flex-direction: row; align-items: center; }
.brand-logo { display: block; height: 46px; width: auto; }
.brand-logo--dark { display: none; }
.site-header.is-solid .brand-logo--light,
.site-header.on-light:not(.is-solid) .brand-logo--light { display: none; }
.site-header.is-solid .brand-logo--dark,
.site-header.on-light:not(.is-solid) .brand-logo--dark { display: block; }
@media (max-width: 760px) { .brand-logo { height: 38px; } }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a {
  font-size: .85rem; font-weight: 500; color: rgba(255,255,255,.82);
  position: relative; transition: color .25s var(--ease); white-space: nowrap;
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1.5px; width: 0;
  background: var(--gold); transition: width .28s var(--ease);
}
.nav a:hover, .nav a[aria-current="page"] { color: #fff; }
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }
.nav .btn { padding: 11px 22px; }

/* Scrolled / solid header */
.site-header.is-solid {
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(160%) blur(12px);
  box-shadow: 0 1px 0 var(--line);
  padding-block: 13px;
}
.site-header.is-solid .brand b { color: var(--navy-900); }
.site-header.is-solid .nav a { color: var(--ink-soft); }
.site-header.is-solid .nav a:hover, .site-header.is-solid .nav a[aria-current="page"] { color: var(--navy-900); }
.site-header.is-solid .nav-toggle span { background: var(--navy-900); }

/* Header on light pages (no dark hero) */
.site-header.on-light:not(.is-solid) .brand b { color: var(--navy-900); }
.site-header.on-light:not(.is-solid) .nav a { color: var(--ink-soft); }
.site-header.on-light:not(.is-solid) .nav a:hover { color: var(--navy-900); }
.site-header.on-light:not(.is-solid) .nav-toggle span { background: var(--navy-900); }

/* Mobile toggle */
.nav-toggle { display: none; width: 44px; height: 44px; position: relative; }
.nav-toggle span {
  position: absolute; left: 11px; height: 2px; width: 22px; background: #fff;
  transition: transform .3s var(--ease), opacity .2s var(--ease), top .3s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 28px; }
body.nav-open .nav-toggle span:nth-child(1) { top: 22px; transform: rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* ---- Hero ---- */
.hero {
  position: relative;
  background: radial-gradient(120% 130% at 85% 0%, var(--navy-700) 0%, var(--navy-900) 55%);
  color: #fff;
  padding-top: 150px;
  padding-bottom: clamp(70px, 6vw, 120px);
  overflow: hidden;
}
.hero::before {
  /* subtle grain / vignette */
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 12% 100%, rgba(176,137,79,.12), transparent 70%),
    radial-gradient(40% 40% at 100% 30%, rgba(31,74,107,.5), transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center;
}
.hero-eyebrow { color: var(--gold-soft); margin-bottom: 26px; }
.hero-eyebrow::before { background: var(--gold-soft); }
.hero h1 { color: #fff; max-width: 16ch; margin-bottom: 26px; }
.hero .lead { color: rgba(255,255,255,.78); max-width: 52ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 38px; }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 28px; margin-top: 46px;
  padding-top: 30px; border-top: 1px solid var(--line-navy);
}
.hero-meta div b {
  font-family: var(--serif); font-size: 1.7rem; font-weight: 450; color: #fff; display: block;
}
.hero-meta div span { font-size: .8rem; color: rgba(255,255,255,.6); letter-spacing: .02em; }

/* Hero portrait frame (graceful fallback if no photo) */
.hero-portrait {
  position: relative; aspect-ratio: 4/5; border-radius: 18px; overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% 0%, var(--navy-600), var(--navy-900));
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 30px 70px rgba(0,0,0,.4);
}
.hero-portrait img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: 50% 20%; z-index: 2;
}
/* subtle premium vignette so the photo blends with the navy theme */
.hero-portrait::after {
  content: ""; position: absolute; inset: 0; z-index: 3; pointer-events: none;
  background: linear-gradient(180deg, rgba(11,27,43,.12) 0%, transparent 28%, transparent 62%, rgba(11,27,43,.34) 100%);
}
.hero-portrait .portrait-fallback {
  position: absolute; inset: 0; z-index: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 16px; text-align: center; padding: 24px;
}
.hero-portrait .monogram {
  font-family: var(--serif); font-size: 3.4rem; color: var(--gold-soft);
  width: 110px; height: 110px; border: 1px solid rgba(201,165,106,.5); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; letter-spacing: .02em;
}
.hero-portrait .portrait-fallback small {
  color: rgba(255,255,255,.45); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
}
/* decorative orbit motif */
.hero-portrait .orbit { position: absolute; inset: 0; opacity: .5; }

/* ---- Intro strip ---- */
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.intro-quote {
  font-family: var(--serif); font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.15rem);
  line-height: 1.32; color: var(--navy-900); font-weight: 420; letter-spacing: -.01em;
}
.intro-quote em { color: var(--gold); font-style: italic; }
.intro-body p + p { margin-top: 18px; }
.signature {
  margin-top: 28px; font-family: var(--serif); font-size: 1.15rem;
  color: var(--navy-800); display: flex; align-items: baseline; gap: 12px;
}
.signature span { font-family: var(--sans); font-size: .82rem; color: var(--ink-faint); letter-spacing: .02em; }

/* ---- Cards grid (work areas) ---- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 30px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: transparent; }
.card .card-num {
  font-family: var(--serif); font-size: .95rem; color: var(--gold);
  letter-spacing: .04em; margin-bottom: 22px; display: block;
}
.card .card-icon {
  width: 50px; height: 50px; border-radius: 12px; background: var(--gold-tint);
  display: flex; align-items: center; justify-content: center; margin-bottom: 22px;
}
.card .card-icon svg { width: 24px; height: 24px; stroke: var(--gold); fill: none; }
.card h3 { margin-bottom: 12px; color: var(--navy-900); }
.card p { font-size: .96rem; }
.card .card-link {
  margin-top: 20px; font-size: .85rem; font-weight: 600; color: var(--navy-700);
  display: inline-flex; gap: 7px; align-items: center;
}
.card .card-link svg { width: 14px; height: 14px; transition: transform .25s var(--ease); }
.card:hover .card-link svg { transform: translateX(4px); }

/* ---- ADP feature band ---- */
.feature {
  background: linear-gradient(160deg, var(--navy-800) 0%, var(--navy-900) 70%);
  color: #fff; position: relative; overflow: hidden;
}
.feature::after {
  content: ""; position: absolute; right: -10%; top: -20%; width: 50%; height: 140%;
  background: radial-gradient(circle, rgba(176,137,79,.16), transparent 60%); pointer-events: none;
}
.feature .container { position: relative; z-index: 2; }
.feature h2 { color: #fff; }
.feature .lead { color: rgba(255,255,255,.78); }
.feature .eyebrow { color: var(--gold-soft); }
.feature .eyebrow::before { background: var(--gold-soft); }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 52px; }
.step {
  border: 1px solid var(--line-navy); border-radius: 12px; padding: 24px 18px;
  background: rgba(255,255,255,.02); transition: background .3s var(--ease), border-color .3s var(--ease);
}
.step:hover { background: rgba(255,255,255,.05); border-color: rgba(201,165,106,.4); }
.step .step-no {
  font-family: var(--serif); font-size: 1.1rem; color: var(--gold-soft);
  width: 38px; height: 38px; border: 1px solid rgba(201,165,106,.4); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.step b { display: block; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 8px; }
.step h4 { color: #fff; font-size: 1.02rem; margin-bottom: 8px; font-family: var(--sans); font-weight: 600; }
.step p { font-size: .85rem; color: rgba(255,255,255,.62); line-height: 1.55; }

/* concept chips */
.concept-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.chip {
  font-size: .82rem; padding: 9px 16px; border-radius: 100px;
  border: 1px solid var(--line-navy); color: rgba(255,255,255,.82);
}
.chip strong { color: var(--gold-soft); font-weight: 600; }

/* ---- Methodology pillars ---- */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.pillar {
  padding: 38px 32px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--paper); transition: background .3s var(--ease);
}
.pillar:hover { background: var(--bone); }
.pillar .p-num { font-family: var(--serif); color: var(--gold); font-size: .9rem; }
.pillar h4 { font-family: var(--serif); font-size: 1.25rem; margin: 14px 0 10px; color: var(--navy-900); font-weight: 460; }
.pillar p { font-size: .92rem; }

/* ---- Article library ---- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.filter-chip {
  font-size: .86rem; font-weight: 500; padding: 9px 18px; border-radius: 100px;
  border: 1px solid var(--line); color: var(--ink-soft); background: var(--paper);
  transition: all .22s var(--ease);
}
.filter-chip:hover { border-color: var(--navy-700); color: var(--navy-900); }
.filter-chip.active { background: var(--navy-900); color: #fff; border-color: var(--navy-900); }

.article-card {
  display: flex; flex-direction: column; background: var(--paper);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.article-thumb {
  aspect-ratio: 16/10; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-900));
  display: flex; align-items: flex-end; padding: 20px;
}
.article-thumb.t-sand { background: linear-gradient(135deg, var(--sand), #d9ccb3); }
.article-thumb.t-bone { background: linear-gradient(135deg, #e9eef0, #cdd8dd); }
.article-thumb.t-gold { background: linear-gradient(135deg, #c9a56a, #9c7639); }
.article-thumb .thumb-tag {
  font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  background: rgba(255,255,255,.92); color: var(--navy-900); padding: 6px 12px; border-radius: 100px;
}
.article-thumb .thumb-glyph {
  position: absolute; right: 18px; top: 16px; font-family: var(--serif);
  font-size: 2.4rem; color: rgba(255,255,255,.22);
}
.article-thumb.t-sand .thumb-glyph, .article-thumb.t-bone .thumb-glyph { color: rgba(11,27,43,.16); }
.article-body { padding: 26px 28px 30px; display: flex; flex-direction: column; flex: 1; }
.article-meta { font-size: .78rem; color: var(--ink-faint); letter-spacing: .04em; margin-bottom: 14px; }
.article-card h3 { font-size: 1.22rem; line-height: 1.25; margin-bottom: 12px; }
.article-card p { font-size: .92rem; flex: 1; }
.article-card .text-link { margin-top: 20px; }

/* ---- Contact ---- */
.contact { background: linear-gradient(160deg, var(--navy-800), var(--navy-900)); color: #fff; }
.contact h2 { color: #fff; }
.contact .lead { color: rgba(255,255,255,.78); }
.contact .eyebrow { color: var(--gold-soft); }
.contact .eyebrow::before { background: var(--gold-soft); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.contact-list { display: grid; gap: 4px; margin-top: 8px; }
.contact-item {
  display: flex; align-items: center; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line-navy);
}
.contact-item .ci-icon {
  width: 46px; height: 46px; border-radius: 12px; border: 1px solid rgba(201,165,106,.35);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-item .ci-icon svg { width: 20px; height: 20px; stroke: var(--gold-soft); fill: none; }
.contact-item .ci-label { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.5); }
.contact-item .ci-value { font-size: 1.05rem; color: #fff; transition: color .25s var(--ease); }
.contact-item:hover .ci-value { color: var(--gold-soft); }

/* ---- Footer ---- */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,.6); padding-block: 64px 30px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 44px; padding-bottom: 44px; border-bottom: 1px solid var(--line-navy); }
.footer-brand b { font-family: var(--serif); font-size: 1.3rem; color: #fff; display: block; margin-bottom: 14px; }
.footer-brand p { font-size: .92rem; max-width: 38ch; }
.footer-col h5 { font-size: .76rem; letter-spacing: .16em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 18px; font-family: var(--sans); }
.footer-col a { display: block; font-size: .92rem; padding: 6px 0; color: rgba(255,255,255,.62); transition: color .22s var(--ease); }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 26px; font-size: .82rem; flex-wrap: wrap; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px; height: 38px; border: 1px solid var(--line-navy); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; transition: all .25s var(--ease);
}
.footer-social a:hover { border-color: var(--gold-soft); background: rgba(201,165,106,.1); }
.footer-social svg { width: 17px; height: 17px; fill: rgba(255,255,255,.7); }

/* ---- Page hero (interior pages) ---- */
.page-hero {
  background: radial-gradient(120% 130% at 85% 0%, var(--navy-700) 0%, var(--navy-900) 60%);
  color: #fff; padding-top: 150px; padding-bottom: clamp(56px, 5vw, 90px); position: relative; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(50% 50% at 10% 100%, rgba(176,137,79,.12), transparent 70%); pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero .eyebrow { color: var(--gold-soft); margin-bottom: 22px; }
.page-hero .eyebrow::before { background: var(--gold-soft); }
.page-hero h1 { color: #fff; max-width: 18ch; }
.page-hero .lead { color: rgba(255,255,255,.78); max-width: 56ch; margin-top: 22px; }
.breadcrumb { font-size: .82rem; color: rgba(255,255,255,.55); margin-bottom: 26px; display: flex; gap: 8px; }
.breadcrumb a:hover { color: #fff; }

/* ---- Prose (about / article bodies) ---- */
.prose { max-width: 720px; }
.prose p { margin-bottom: 20px; font-size: 1.05rem; color: var(--ink-soft); }
.prose h2 { font-size: 1.7rem; margin: 44px 0 18px; color: var(--navy-900); }
.prose h3 { font-size: 1.3rem; margin: 32px 0 14px; }
.prose ul.bullets { margin: 0 0 22px; display: grid; gap: 12px; }
.prose ul.bullets li { position: relative; padding-left: 28px; color: var(--ink-soft); }
.prose ul.bullets li::before {
  content: ""; position: absolute; left: 4px; top: 11px; width: 7px; height: 7px;
  background: var(--gold); border-radius: 50%;
}
.prose strong { color: var(--navy-900); }

/* article byline + extras */
.article-byline { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 24px; color: rgba(255,255,255,.72); font-size: .9rem; }
.article-byline .ab-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--gold-soft); }
.article-byline .ab-cat { color: var(--gold-soft); font-weight: 600; letter-spacing: .04em; }
.prose .lead-in { font-size: 1.18rem; line-height: 1.6; color: var(--ink); }
.prose .citation { margin-top: 30px; padding: 16px 20px; border-left: 3px solid var(--gold); background: var(--bone); border-radius: 0 8px 8px 0; font-size: .92rem; color: var(--ink-soft); }
.prose .usage-box { margin-top: 44px; padding: 28px 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bone); }
.prose .usage-box h2 { margin-top: 0; font-size: 1.25rem; }
.prose .usage-box p { font-size: .92rem; margin-bottom: 10px; }
.article-footer-nav { margin-top: 56px; padding-top: 30px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; }

/* timeline (about) */
.timeline { display: grid; gap: 0; margin-top: 10px; }
.tl-item { display: grid; grid-template-columns: 110px 1fr; gap: 28px; padding: 26px 0; border-top: 1px solid var(--line); }
.tl-item .tl-year { font-family: var(--serif); font-size: 1.4rem; color: var(--gold); }
.tl-item h4 { font-size: 1.1rem; margin-bottom: 6px; color: var(--navy-900); }
.tl-item p { font-size: .96rem; }

/* ---- Area detail rows (Çalışma Alanları) ---- */
.area-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding-block: clamp(40px, 4vw, 64px); border-top: 1px solid var(--line); }
.area-row:first-of-type { border-top: 0; }
.area-row.flip .area-visual { order: -1; }
.area-row .area-tag { font-family: var(--serif); font-size: .95rem; color: var(--gold); letter-spacing: .04em; }
.area-row h2 { font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.3rem); margin: 12px 0 16px; }
.area-row .bullets { margin-top: 22px; display: grid; gap: 10px; }
.area-row .bullets li { position: relative; padding-left: 26px; color: var(--ink-soft); font-size: .96rem; }
.area-row .bullets li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 7px; height: 7px; background: var(--gold); border-radius: 50%; }
.area-visual {
  aspect-ratio: 5/4; border-radius: var(--radius); overflow: hidden; position: relative;
  background: linear-gradient(150deg, var(--navy-700), var(--navy-900));
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
}
.area-visual.v-sand { background: linear-gradient(150deg, var(--sand), #d6c6a8); }
.area-visual.v-bone { background: linear-gradient(150deg, #e8edef, #c9d5da); }
.area-visual .av-icon { width: 96px; height: 96px; opacity: .9; }
.area-visual .av-icon svg { width: 100%; height: 100%; stroke: rgba(255,255,255,.6); fill: none; stroke-width: 1; }
.area-visual.v-sand .av-icon svg, .area-visual.v-bone .av-icon svg { stroke: rgba(11,27,43,.4); }
.area-visual .av-word { position: absolute; bottom: 18px; left: 22px; font-family: var(--serif); font-size: 1.05rem; color: rgba(255,255,255,.85); }
.area-visual.v-sand .av-word, .area-visual.v-bone .av-word { color: rgba(11,27,43,.6); }

/* ---- Value / approach list (about) ---- */
.value-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.value-item { display: flex; gap: 18px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.value-item .vi-no { font-family: var(--serif); font-size: 1.6rem; color: var(--gold); line-height: 1; }
.value-item h4 { font-size: 1.1rem; margin-bottom: 6px; color: var(--navy-900); }
.value-item p { font-size: .94rem; }

/* model cards (about) */
.model-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 38px 34px; height: 100%; }
.model-card .mc-tag { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); font-weight: 600; }
.model-card h3 { margin: 14px 0 12px; font-size: 1.5rem; }
.model-card p { font-size: .98rem; }

/* ---- Contact form ---- */
.form-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(28px, 3vw, 44px); box-shadow: var(--shadow-sm); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .82rem; font-weight: 600; color: var(--navy-900); letter-spacing: .02em; }
.field input, .field textarea, .field select {
  font-family: var(--sans); font-size: 1rem; color: var(--ink);
  padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--bone); transition: border-color .2s var(--ease), background .2s var(--ease);
  width: 100%;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--gold); background: #fff; outline: none; }
.field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: .82rem; color: var(--ink-faint); margin-top: 16px; }
.form-note.form-success { font-size: .92rem; color: #0F6E56; background: rgba(29,158,117,.10); border: 1px solid rgba(29,158,117,.35); border-radius: 10px; padding: 14px 18px; margin: 0 0 18px; }
.form-note.form-error { font-size: .92rem; color: #A32D2D; background: rgba(226,75,74,.08); border: 1px solid rgba(226,75,74,.35); border-radius: 10px; padding: 14px 18px; margin: 0 0 18px; }

/* CTA band */
.cta-band { background: linear-gradient(160deg, var(--navy-800), var(--navy-900)); color: #fff; border-radius: var(--radius); padding: clamp(40px, 5vw, 70px); text-align: center; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; right: -8%; top: -30%; width: 40%; height: 160%; background: radial-gradient(circle, rgba(176,137,79,.16), transparent 60%); }
.cta-band > * { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.78); max-width: 50ch; margin: 16px auto 0; }
.cta-band .btn { margin-top: 30px; }

@media (max-width: 880px) {
  .area-row { grid-template-columns: 1fr; gap: 28px; }
  .area-row.flip .area-visual { order: 0; }
  .value-grid, .form-grid { grid-template-columns: 1fr; }
}

/* ---- Reveal on scroll ---- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card, .article-card { transition: none; }
}

/* =====================================================================
   Responsive
   ===================================================================== */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-portrait { max-width: 380px; }
  .intro-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1200px) {
  /* Mobil/tablet/dar-masaüstü: 7 maddelik yatay menü sığmadığından tam-ekran overlay menü */
  .nav-toggle { display: block; z-index: 120; }
  .nav {
    position: fixed; inset: 0; flex-direction: column; justify-content: center;
    gap: 8px; background: var(--navy-900);
    transform: translateX(100%); transition: transform .4s var(--ease);
    padding: 80px 32px 40px;
  }
  body.nav-open .nav { transform: none; }
  .nav a { color: #fff !important; font-size: 1.3rem; font-family: var(--serif); padding: 12px 0; }
  .nav a::after { display: none; }
  .nav .btn { margin-top: 14px; width: 100%; justify-content: center; }
  body.nav-open { overflow: hidden; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .grid-3, .grid-2, .pillars, .steps { grid-template-columns: 1fr; }
  .pillar { border-right: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .hero-meta { gap: 20px; }
  .tl-item { grid-template-columns: 1fr; gap: 6px; }
  .section-head { margin-bottom: 38px; }
}

/* --- Rafinasyon: dengeli baslik kirilimi (regresyonsuz, ek kural — odak zaten temada mevcut) --- */
.display, .section-title { text-wrap: balance; }
.lead, .prose p, .intro-body p { text-wrap: pretty; }

/* === Header isim markası — A2 small-caps wordmark (yalnız .brand kapsamı, lokal & geri alınabilir) ===
   Çizgi yok. Small-caps + ferah aralık → "tasarlanmış" wordmark, sıradan font görünümünden çıkar.
   Serif sistemde kalır (Fraunces, font enqueue DEĞİŞMEZ). is-solid / on-light lacivert kuralları
   daha yüksek özgüllükte olduğu için scroll/açık-zemin davranışı korunur (yalnız koyu-hero rafine). */
.site-header .brand b{
  /* ağırlık temadaki yüklü Fraunces 500'den miras alınır (font sistemine dokunulmaz) */
  font-size: clamp(1.2rem, 1.06rem + .55vw, 1.42rem);
  font-variant-caps: small-caps;
  font-feature-settings: "smcp" 1;
  letter-spacing: .05em;
  line-height: 1.05;
  color: #F4F1EA;              /* sıcak kırık-beyaz (saf beyazdan rafine; kâğıt-beji paletiyle uyumlu) */
}
/* Türkçe 'İ' düzeltmesi: small-caps, Safari'de Türkçe 'i'nin noktasını düşürür (Chrome'da sorun yok).
   Çözüm: yalnız "Şerif"teki o tek harfi gerçek (noktalı) İ olarak, küçük-kapital boyuna ölçekli ver.
   Locale/dönüşüme bağlı değil → nokta harfin kendindedir, her tarayıcıda garanti. Estetik birebir korunur. */
.site-header .brand b .brand-doti{
  font-variant-caps: normal; font-feature-settings: normal;
  font-size: .68em; font-style: normal;   /* küçük-kapital yüksekliğine ölçek (noktası small-cap çizgisinde) */
}
.site-header .brand span{ font-size: .58rem; letter-spacing: .24em; margin-top: 9px; }
@media (max-width: 760px){
  .site-header .brand b{ font-size: 1.18rem; }
}

/* === Model fikri mülkiyet notu === */
.model-ip-note{ margin-top:30px; text-align:center; font-size:.82rem; line-height:1.6; color:var(--ink-soft); opacity:.9; }

/* === İçerik kopyalama caydırıcısı (yalnız içerik; form & iletişim açık) === */
body{ -webkit-user-select:none; -moz-user-select:none; user-select:none; }
input, textarea, select, [contenteditable="true"], .contact-item, .ci-value{ -webkit-user-select:text; -moz-user-select:text; user-select:text; }
img{ -webkit-user-drag:none; user-drag:none; }

/* === Tanıtım broşürü — sayfa sayfa görüntü istifi (ADP & MÇM) === */
.brochure-bar{ display:flex; justify-content:center; }
.brochure-pages{ max-width:760px; margin:30px auto; }
.brochure-page{
  width:100%; height:auto; display:block; background:#fff;
  border:1px solid var(--line); border-radius:8px;
  margin-bottom:16px; box-shadow:var(--shadow-sm);
}
.brochure-page:last-child{ margin-bottom:0; }