/* =========================================================================
   Yunus Nazif Anginer — kişisel akademik site
   Yön: "Saklı Ateş" — bilimsel karanlık-lüks / hermetik editoryal
   Palet: sıcak vellum-siyah · patine altın · gizli köz (ember)
   ========================================================================= */

/* ---- Design tokens ---------------------------------------------------- */
:root {
  /* renk */
  --ink:            #0c0a08;
  --ink-2:          #14100b;
  --surface:        #191410;
  --surface-2:      #211a13;
  --line:           rgba(201, 162, 75, 0.16);
  --line-strong:    rgba(201, 162, 75, 0.34);

  --parchment:      #ebe2d0;
  --parchment-dim:  #b7aa8e;
  --muted:          #8a7d63;
  --muted-2:        #6b6049;

  --gold:           #c9a24b;
  --gold-hi:        #e7c46a;
  --gold-bright:    #f3d798;   /* alıntılar için yüksek kontrast altın */
  --ember:          #c05a2e;
  --ember-hi:       #e07a3f;
  --ember-glow:     rgba(197, 92, 44, 0.55);

  /* tipografi */
  --display: "Cormorant Garamond", "Times New Roman", serif;
  --body:    "Inter", system-ui, -apple-system, sans-serif;

  --text-eyebrow: clamp(0.68rem, 0.64rem + 0.2vw, 0.78rem);
  --text-body:    clamp(1rem, 0.96rem + 0.25vw, 1.12rem);
  --text-lead:    clamp(1.15rem, 1rem + 0.7vw, 1.5rem);
  --text-h2:      clamp(2rem, 1.3rem + 3vw, 3.6rem);
  --text-h3:      clamp(1.5rem, 1.2rem + 1.4vw, 2.2rem);
  --text-hero:    clamp(3.2rem, 1.2rem + 9vw, 8.5rem);

  /* ritim */
  --space-section: clamp(5rem, 3.5rem + 7vw, 11rem);
  --wrap:  min(1200px, 92vw);
  --wrap-narrow: min(760px, 92vw);

  /* hareket */
  --dur:   0.6s;
  --dur-s: 0.28s;
  --ease:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-inout: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---- Reset / base ----------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--parchment);
  font-family: var(--body);
  font-size: var(--text-body);
  line-height: 1.7;
  font-weight: 400;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* sıcak, dokulu zemin — üstte köz ışığı, altta koyu vellum grenli */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(197, 92, 44, 0.10), transparent 55%),
    radial-gradient(90% 60% at 85% 8%, rgba(201, 162, 75, 0.07), transparent 60%),
    var(--ink);
}
/* ince film greni (dokunun atmosferi) */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }

::selection { background: rgba(201, 162, 75, 0.28); color: #fff; }

/* odak görünürlüğü */
:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- Yardımcılar ------------------------------------------------------ */
.wrap { width: var(--wrap); margin-inline: auto; }

.eyebrow {
  font-family: var(--body);
  font-size: var(--text-eyebrow);
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 0.9em;
}
.eyebrow::before {
  content: "";
  width: clamp(20px, 4vw, 46px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

/* bölüm başlığı — Roman rakamı bir tezin bölümü gibi anlam taşır */
.section-head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-num {
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--muted);
  display: block;
  margin-bottom: 1.2rem;
}
h2.section-title {
  font-family: var(--display);
  font-weight: 300;
  font-size: var(--text-h2);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 0.4rem 0 0;
  color: var(--parchment);
}
h2.section-title em { font-style: italic; color: var(--gold-hi); }

.lead {
  font-family: var(--display);
  font-size: var(--text-lead);
  line-height: 1.5;
  color: var(--parchment-dim);
  font-weight: 400;
}

/* köz düğmesi */
.btn {
  --bg: transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  padding: 0.85em 1.5em;
  font-family: var(--body);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--parchment);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: var(--bg);
  position: relative;
  overflow: hidden;
  transition: color var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
  will-change: transform;
}
.btn .arrow { transition: transform var(--dur-s) var(--ease); }
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 140% at 0% 100%, var(--ember) 0%, var(--gold) 60%, transparent 100%);
  opacity: 0;
  transform: translateY(40%);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  z-index: -1;
}
.btn:hover { color: var(--ink); border-color: transparent; transform: translateY(-2px); }
.btn:hover::before { opacity: 1; transform: translateY(0); }
.btn:hover .arrow { transform: translate(3px, -3px); }

.btn.primary {
  color: var(--ink);
  border-color: transparent;
  background: linear-gradient(105deg, var(--gold-hi), var(--gold));
  font-weight: 600;
}
.btn.primary::before { background: linear-gradient(105deg, var(--ember-hi), var(--ember)); }
.btn.primary:hover { color: #fff; }

/* ============================ NAV ===================================== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.2rem, 4vw, 3rem);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), padding var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(12, 10, 8, 0.72);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--line);
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  flex: none;
}
/* altın kelime-logo (şeffaf PNG) */
.brand-logo {
  height: clamp(33px, 3.74vw, 51px);
  width: auto;
  transition: opacity var(--dur-s) var(--ease), filter var(--dur-s) var(--ease);
}
.brand:hover .brand-logo { filter: brightness(1.12); }
/* menü küçülünce logo da hafifçe küçülsün */
.nav.scrolled .brand-logo { height: clamp(30px, 3.3vw, 44px); }

.nav-links { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2.2rem); }
.nav-links a {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--parchment-dim);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--dur-s) var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-s) var(--ease);
}
.nav-links a:hover { color: var(--parchment); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links .nav-cta {
  color: var(--gold-hi);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: 0.5rem 1rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
}
.nav-links .nav-cta::after { display: none; }
.nav-links .nav-cta:hover { background: var(--gold); color: var(--ink); border-color: var(--gold); }

.nav-toggle { display: none; }

/* dil seçici */
.lang { position: relative; }
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  background: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--parchment-dim);
  font-family: var(--body);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  padding: 0.5rem 0.7rem;
  cursor: pointer;
  transition: color var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease);
}
.lang-btn:hover, .lang.open .lang-btn { color: var(--gold-hi); border-color: var(--line-strong); }
.lang-globe { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.4; }
.lang-code { font-weight: 600; }
.lang-caret { font-size: 0.7em; transition: transform var(--dur-s) var(--ease); }
.lang.open .lang-caret { transform: rotate(180deg); }
.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 158px;
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  background: rgba(20, 16, 11, 0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  box-shadow: 0 20px 44px -16px rgba(0, 0, 0, 0.85);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
  z-index: 60;
}
.lang.open .lang-menu { opacity: 1; transform: none; pointer-events: auto; }
.lang-menu button {
  display: flex;
  align-items: baseline;
  gap: 0.7em;
  width: 100%;
  background: none;
  border: 0;
  border-radius: 2px;
  cursor: pointer;
  color: var(--parchment-dim);
  font-family: var(--body);
  font-size: 0.85rem;
  text-align: left;
  padding: 0.6rem 0.7rem;
  transition: background var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}
.lang-menu button b { color: var(--gold); font-weight: 600; min-width: 2.2ch; }
.lang-menu button:hover { background: rgba(201, 162, 75, 0.10); color: var(--parchment); }
.lang-menu button.active, .lang-menu button.active b { color: var(--gold-hi); }

/* ============================ HERO ==================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  overflow: hidden;
}
/* imza: kareye alınmış daire — kutsal geometri gravürü */
.hero-geo {
  position: absolute;
  top: 50%;
  right: clamp(-18rem, -6vw, -6rem);
  transform: translateY(-50%);
  width: min(72vh, 760px);
  aspect-ratio: 1;
  z-index: 0;
  pointer-events: none;
}
.hero-geo svg { width: 100%; height: 100%; overflow: visible; }
.hero-geo .stroke {
  fill: none;
  stroke: var(--gold);
  stroke-width: 0.6;
  opacity: 0.5;
  vector-effect: non-scaling-stroke;
}
.hero-geo .stroke.faint { opacity: 0.22; }
.hero-geo .spin { transform-origin: 300px 300px; animation: spin 120s linear infinite; }
.hero-geo .spin-rev { transform-origin: 300px 300px; animation: spin 90s linear infinite reverse; }
@keyframes spin { to { transform: rotate(360deg); } }

/* gizli ateş — merkezde nefes alan köz */
.hero-ember {
  position: absolute;
  top: 50%;
  right: clamp(-2rem, 8vw, 8rem);
  transform: translateY(-50%);
  width: min(46vh, 460px);
  aspect-ratio: 1;
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle, var(--ember-glow) 0%, rgba(197,92,44,0.14) 34%, transparent 66%);
  filter: blur(6px);
  animation: breathe 7s var(--ease-inout) infinite;
}
@keyframes breathe {
  0%, 100% { opacity: 0.55; transform: translateY(-50%) scale(0.94); }
  50%      { opacity: 0.9;  transform: translateY(-50%) scale(1.06); }
}

.hero-inner { position: relative; z-index: 2; width: var(--wrap); margin-inline: auto; }
.hero .eyebrow { margin-bottom: 1.6rem; }
.hero-owl { font-style: normal; }

h1.hero-name {
  font-family: var(--display);
  font-weight: 300;
  font-size: var(--text-hero);
  line-height: 0.92;
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--parchment);
}
h1.hero-name .row2 { display: block; }
h1.hero-name em {
  font-style: italic;
  background: linear-gradient(92deg, var(--gold-hi), var(--gold) 55%, var(--ember-hi));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
/* uzun açıklama metni — daha geniş ölçü, biraz daha küçük punto */
.hero-tagline {
  max-width: 60ch;
  margin: 1.7rem 0 0;
  font-family: var(--display);
  font-size: clamp(1.06rem, 0.96rem + 0.5vw, 1.3rem);
  line-height: 1.48;
  color: var(--parchment-dim);
}
.hero-quote {
  margin: 1.7rem 0 0;
  padding-left: 1.2rem;
  border-left: 1px solid var(--line-strong);
  font-family: var(--display);
  font-style: italic;
  font-size: clamp(1rem, 0.9rem + 0.5vw, 1.25rem);
  color: var(--gold);
  max-width: 40ch;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.1rem; }

/* alçak laptop ekranlarında hero'yu sıkılaştır — butonlar katlanın üstünde kalsın */
@media (min-width: 681px) and (max-height: 900px) {
  .hero { padding-top: 6.5rem; padding-bottom: 3rem; }
  .hero .eyebrow { margin-bottom: 1.1rem; }
  h1.hero-name { font-size: clamp(3.2rem, 1rem + 7vw, 6.4rem); }
  .hero-tagline { margin-top: 1.3rem; font-size: 1.12rem; }
  .hero-quote { margin-top: 1.3rem; }
  .hero-actions { margin-top: 1.7rem; }
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.66rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
}
.scroll-cue .rail { width: 1px; height: 44px; background: linear-gradient(var(--gold), transparent); position: relative; overflow: hidden; }
.scroll-cue .rail::after {
  content: ""; position: absolute; top: -50%; left: 0; width: 100%; height: 50%;
  background: var(--gold-hi); animation: drop 2.4s var(--ease-inout) infinite;
}
@keyframes drop { 0% { top: -50%; } 60%, 100% { top: 100%; } }

/* ============================ SECTION wrapper ========================= */
.section { padding-block: var(--space-section); position: relative; }
.section + .section { border-top: 1px solid var(--line); }

/* ---- I · Hakkında ----------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.about-body p { margin: 0 0 1.3rem; color: var(--parchment-dim); max-width: 60ch; }
.about-body p.first { color: var(--parchment); font-size: var(--text-lead); font-family: var(--display); line-height: 1.5; }
/* serif vurgu, gövde sans'ın yanında optik olarak küçük kalmasın diye 1.08em */
.about-body p .k { color: var(--gold); font-style: italic; font-family: var(--display); font-size: 1.08em; }

/* portre — künyenin yerine geçti. Fotoğraf gelene kadar hermetik mühür durur. */
.portrait { margin: 0; position: relative; }
.portrait-frame {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 0.55rem;
  background: linear-gradient(180deg, var(--surface), var(--ink-2));
  box-shadow: 0 34px 64px -28px rgba(0, 0, 0, 0.85);
}
/* köz halesi — kapaktaki dille aynı atmosfer */
.portrait-frame::after {
  content: "";
  position: absolute;
  inset: -10% -8% -16% -8%;
  z-index: -1;
  background: radial-gradient(60% 60% at 50% 55%, var(--ember-glow), transparent 70%);
  filter: blur(26px);
  opacity: 0.55;
}
/* fotoğraf geldiğinde kullanılacak sınıf */
.portrait-img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 2px;
  filter: saturate(0.9) contrast(1.02);
}
/* fotoğraf gelene kadarki mühür */
.portrait-ph {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: 2px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(80% 60% at 50% 0%, rgba(197, 92, 44, 0.14), transparent 60%),
    linear-gradient(180deg, var(--surface-2), var(--ink));
}
.portrait-seal {
  position: absolute;
  width: 72%;
  fill: none;
  stroke: var(--gold);
  stroke-width: 0.7;
  opacity: 0.3;
  vector-effect: non-scaling-stroke;
}
.portrait-mono {
  position: relative;
  font-family: var(--display);
  font-style: italic;
  font-size: clamp(2.2rem, 5vw, 3.1rem);
  letter-spacing: 0.08em;
  color: var(--gold-hi);
}
.portrait figcaption {
  margin-top: 1rem;
  font-family: var(--display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.02em;
}

/* ---- II · Uzmanlık ---------------------------------------------------- */
.fields { border-top: 1px solid var(--line); }
.field {
  display: grid;
  grid-template-columns: 4rem 1fr auto;
  gap: clamp(1rem, 3vw, 3rem);
  align-items: baseline;
  padding: clamp(1.5rem, 3vw, 2.3rem) 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: padding-left var(--dur) var(--ease);
}
.field::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(var(--ember-hi), var(--gold));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur) var(--ease);
}
.field:hover { padding-left: 1.4rem; }
.field:hover::before { transform: scaleY(1); }
.field .idx { font-family: var(--display); font-size: 1rem; color: var(--muted); letter-spacing: 0.1em; }
.field .name { font-family: var(--display); font-weight: 400; font-size: var(--text-h3); line-height: 1.05; color: var(--parchment); margin: 0; transition: color var(--dur-s) var(--ease); }
.field:hover .name { color: var(--gold-hi); }
.field .desc { color: var(--muted); font-size: 0.95rem; max-width: 34ch; text-align: right; }

/* ---- III · Kitaplar --------------------------------------------------- */
/* Çok kitaplı yapı: her kitap tam genişlikte bir satır, kapaklar dönüşümlü
   sol/sağ yerleşir. Yeni kitap eklemek için sadece yeni bir .book bloğu. */
.books {
  display: grid;
  gap: clamp(3.5rem, 8vw, 7rem);
}
.book {
  display: grid;
  grid-template-columns: minmax(240px, 340px) 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.book + .book {
  padding-top: clamp(3.5rem, 8vw, 7rem);
  border-top: 1px dashed var(--line);
}
/* dönüşümlü yerleşim — kapak sağda (sütun genişlikleri de yer değiştirir) */
.book.alt { grid-template-columns: 1fr minmax(240px, 340px); }
.book.alt .book-cover-wrap { grid-column: 2; grid-row: 1; }
.book.alt .book-info      { grid-column: 1; grid-row: 1; }
.book.alt .book-cover { transform: rotateY(8deg) rotateX(2deg); }
.book.alt .book-cover-wrap:hover .book-cover { transform: rotateY(0deg) rotateX(0deg) translateY(-6px); }

.book-badge {
  display: inline-block;
  font-family: var(--body);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: 0.35em 0.85em;
  margin-bottom: 0.9rem;
}
.book-badge.soon { color: var(--ember-hi); border-color: rgba(224, 122, 63, 0.4); }
.book-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.8rem; }
.book-cover-wrap { position: relative; perspective: 1400px; }
/* oran sabitlenmez — her kapak kendi width/height özniteliğinden gelen
   doğal oranını kullanır (CLS yok, farklı ölçüdeki kapaklar bozulmaz) */
.book-cover {
  width: 100%;
  height: auto;
  border-radius: 2px 6px 6px 2px;
  box-shadow:
    0 2px 2px rgba(0,0,0,0.4),
    -3px 0 0 rgba(0,0,0,0.5),
    0 40px 70px -20px rgba(0,0,0,0.75),
    0 0 90px -30px var(--ember-glow);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  transform: rotateY(-8deg) rotateX(2deg);
  will-change: transform;
}
.book-cover-wrap:hover .book-cover {
  transform: rotateY(0deg) rotateX(0deg) translateY(-6px);
  box-shadow: 0 50px 90px -20px rgba(0,0,0,0.8), 0 0 120px -20px var(--ember-glow);
}
.book-cover-wrap::after { /* köz halesi */
  content: "";
  position: absolute;
  inset: -12% -8% -20% -8%;
  z-index: -1;
  background: radial-gradient(60% 60% at 50% 60%, var(--ember-glow), transparent 70%);
  filter: blur(24px);
  opacity: 0.7;
}
.book-info .book-title { font-family: var(--display); font-weight: 300; font-size: var(--text-h3); line-height: 1.05; margin: 0.3rem 0 0.2rem; color: var(--parchment); }
.book-info .book-sub { font-family: var(--display); font-style: italic; font-size: 1.15rem; color: var(--gold); margin: 0 0 1.5rem; }
.book-info .book-desc { color: var(--parchment-dim); margin: 0 0 1.3rem; max-width: 56ch; }
.book-info .book-desc em { font-style: italic; color: var(--parchment); }
/* alıntı — kitabın karakterini taşıyan blok: punto ve kontrast yükseltildi */
.book-quote {
  margin: 1.8rem 0;
  padding: 1.3rem 0 1.3rem 1.6rem;
  border-left: 3px solid var(--ember);
  font-family: var(--display);
  font-style: italic;
  font-size: clamp(1.35rem, 1.1rem + 1.1vw, 1.95rem);
  line-height: 1.36;
  letter-spacing: 0.005em;
  color: var(--gold-bright);
  text-shadow: 0 0 26px rgba(197, 92, 44, 0.22);
}
.book-meta { display: flex; flex-wrap: wrap; gap: 0.6rem 1.4rem; margin: 1.4rem 0 1.8rem; }
.book-meta span { font-size: 0.78rem; letter-spacing: 0.06em; color: var(--muted); display: inline-flex; align-items: center; gap: 0.5em; }
.book-meta span b { color: var(--parchment); font-weight: 500; }
.book-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gold); }

/* kapak görseli henüz gelmemiş kitaplar için yer tutucu (şu an kullanımda değil,
   yeni bir kitap kapaksız duyurulacaksa hazır) */
.book-cover-ph {
  aspect-ratio: 2 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.6rem;
  padding: 2rem 1.4rem;
  background:
    radial-gradient(85% 55% at 50% 0%, rgba(197, 92, 44, 0.16), transparent 62%),
    linear-gradient(180deg, var(--surface-2), var(--ink));
  border: 1px solid var(--line-strong);
}
.book-cover-ph .ph-seal {
  width: 62%;
  flex: none;
  fill: none;
  stroke: var(--gold);
  stroke-width: 0.7;
  opacity: 0.32;
  vector-effect: non-scaling-stroke;
}
.book-cover-ph .ph-label {
  font-family: var(--display);
  font-style: italic;
  font-size: 1.15rem;
  line-height: 1.3;
  text-align: center;
  color: var(--muted);
}

/* ---- IV · Video ------------------------------------------------------- */
.media-top { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 1.5rem; }
.video-grid {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.4rem;
}
.vcard {
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--ink-2);
  transition: transform var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease), box-shadow var(--dur-s) var(--ease);
  will-change: transform;
}
.vcard:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 24px 44px -24px rgba(0,0,0,0.8); }
.vthumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--surface);
  cursor: pointer;
  overflow: hidden;
}
.vthumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur) var(--ease), filter var(--dur) var(--ease); filter: saturate(0.85) brightness(0.82); }
.vcard:hover .vthumb img { transform: scale(1.05); filter: saturate(1) brightness(0.95); }
.vthumb .play {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 58px; height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(12,10,8,0.55);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(4px);
  transition: background var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
}
.vthumb .play svg { width: 20px; height: 20px; fill: var(--gold-hi); margin-left: 3px; }
.vcard:hover .play { background: var(--ember); transform: scale(1.08); }
.vcard:hover .play svg { fill: #fff; }
.vthumb iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.vmeta { padding: 1rem 1.1rem 1.2rem; }
.vmeta .vtitle {
  font-family: var(--display);
  font-size: 1.18rem;
  line-height: 1.25;
  color: var(--parchment);
  margin: 0 0 0.6rem;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
/* başlık YouTube'a giden bir bağlantı — kart tipografisini bozmadan */
.vmeta .vtitle a { color: inherit; transition: color var(--dur-s) var(--ease); }
.vmeta .vtitle a:hover, .vmeta .vtitle a:focus-visible { color: var(--gold-hi); }
.vmeta .vdate { font-size: 0.72rem; letter-spacing: 0.08em; color: var(--muted); text-transform: uppercase; }
.video-loading, .video-error { color: var(--muted); font-family: var(--display); font-style: italic; font-size: 1.2rem; padding: 2rem 0; }
.video-error a { color: var(--gold); border-bottom: 1px solid var(--line-strong); }

/* ---- V · Podcast / dinle ---------------------------------------------- */
.podcast {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(2rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: 4px;
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(197,92,44,0.12), transparent 55%),
    linear-gradient(180deg, var(--surface), var(--ink-2));
}
.podcast .wave { display: flex; align-items: flex-end; gap: 4px; height: 62px; }
.podcast .wave span {
  width: 4px;
  background: linear-gradient(var(--gold-hi), var(--ember));
  border-radius: 2px;
  animation: eq 1.4s var(--ease-inout) infinite;
}
.podcast .wave span:nth-child(1){ height: 30%; animation-delay: 0s; }
.podcast .wave span:nth-child(2){ height: 70%; animation-delay: .15s; }
.podcast .wave span:nth-child(3){ height: 45%; animation-delay: .3s; }
.podcast .wave span:nth-child(4){ height: 95%; animation-delay: .1s; }
.podcast .wave span:nth-child(5){ height: 55%; animation-delay: .45s; }
.podcast .wave span:nth-child(6){ height: 80%; animation-delay: .25s; }
@keyframes eq { 0%,100% { transform: scaleY(0.4); } 50% { transform: scaleY(1); } }
.podcast h3 { font-family: var(--display); font-weight: 400; font-size: var(--text-h3); margin: 0 0 0.3rem; color: var(--parchment); }
.podcast p { margin: 0; color: var(--parchment-dim); max-width: 52ch; }
.podcast .tag { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold); display: block; margin-bottom: 0.6rem; }

/* ---- VI · İletişim / footer ------------------------------------------ */
.contact { text-align: center; }
.contact .cwrap { width: var(--wrap-narrow); margin-inline: auto; }
.contact h2 { font-family: var(--display); font-weight: 300; font-size: var(--text-h2); line-height: 1.05; margin: 1rem 0 1.5rem; }
.contact h2 em { font-style: italic; color: var(--gold-hi); }
.contact p { color: var(--parchment-dim); margin: 0 auto 2.4rem; max-width: 48ch; }
.contact-links { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

.footer {
  border-top: 1px solid var(--line);
  padding: 3rem 0 2.4rem;
  margin-top: var(--space-section);
}
.footer .frow { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.2rem; }
.footer .fname { font-family: var(--display); font-size: 1.3rem; color: var(--parchment); }
.footer .fname span { color: var(--muted); font-size: 0.9rem; display: block; letter-spacing: 0.14em; text-transform: uppercase; margin-top: 0.2rem; }
.footer .fmeta { font-size: 0.78rem; color: var(--muted); text-align: right; }
.footer .fmeta a { color: var(--gold); }
.footer .fmeta a:hover { color: var(--gold-hi); }

/* ---- reveal-on-scroll ------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }

/* ---- responsive ------------------------------------------------------- */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  /* tek sütuna düşünce portre ve kapaklar sola yapışmasın, ortalansın */
  .portrait { max-width: 320px; margin-inline: auto; }
  .portrait figcaption { text-align: center; }
  .book, .book.alt { grid-template-columns: 1fr; justify-items: start; }
  .book.alt .book-cover-wrap { grid-column: 1; grid-row: 1; }
  .book.alt .book-info       { grid-column: 1; grid-row: 2; }
  .book-cover-wrap { max-width: 260px; justify-self: center; }
  .book-cover, .book.alt .book-cover { transform: none; }
  .field { grid-template-columns: 2.4rem 1fr; }
  .field .desc { grid-column: 2; text-align: left; margin-top: 0.5rem; }
  .podcast { grid-template-columns: 1fr; text-align: left; }
}

@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.4rem;
    position: fixed;
    inset: 0;
    padding: 6rem 2rem 2rem;
    background: rgba(12,10,8,0.97);
    backdrop-filter: blur(20px);
    font-size: 1.1rem;
  }
  .nav-links.open a { font-size: 1.3rem; font-family: var(--display); color: var(--parchment); }
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: 0;
    cursor: pointer;
    z-index: 60;
    padding: 6px;
  }
  .nav-toggle span { width: 26px; height: 1.5px; background: var(--gold-hi); transition: transform var(--dur-s) var(--ease), opacity var(--dur-s) var(--ease); }
  .nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
  /* uzun üst yazı dar ekranda 3 satıra düşmesin */
  .hero .eyebrow { letter-spacing: 0.18em; font-size: 0.66rem; gap: 0.6em; }
  .hero .eyebrow::before { width: 16px; }
  .hero-geo, .hero-ember { opacity: 0.5; }
  /* mobilde hero'yu ekran yüksekliğine zorlamıyoruz: scroll-cue gizli olduğu
     için altta kullanılmayan boşluk kalıyordu, hero içerik kadar yer kaplasın */
  .hero { min-height: auto; padding-top: 7rem; padding-bottom: 1.5rem; align-items: flex-start; }
  /* hero hemen bittiği için ilk bölümün üst nefesi de biraz kısılıyor */
  .hero + main > .section:first-child { padding-top: 3.5rem; }
  .hero .scroll-cue { display: none; }

  /* mobil dil seçici: açılır menü yerine yan yana 3 buton */
  .lang { width: 100%; margin-top: 0.8rem; }
  .lang::before {
    content: "Dil / Language";
    display: block;
    font-size: 0.66rem;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.7rem;
  }
  .lang-btn { display: none; }
  .lang-menu {
    position: static;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    display: flex;
    gap: 0.6rem;
    min-width: 0;
    padding: 0;
    background: none;
    border: 0;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .lang-menu li { flex: 1; }
  .lang-menu button {
    justify-content: center;
    gap: 0.5em;
    border: 1px solid var(--line-strong);
    border-radius: 3px;
    padding: 0.75rem 0.4rem;
    font-size: 0.9rem;
  }
  .book-meta { gap: 0.5rem 1rem; }
}

/* ---- reduced motion --------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-ember { opacity: 0.5; }
}