/* =========================================================
   Kişisel Portfolyo — Stil Dosyası
   Palet (Gece mavisi): #0F172A  #334155  #2563EB  #60A5FA  #F4F6FB
   Bölümler: 1) Token'lar  2) Temel  3) Menü  4) Hero
             5) Hakkımda  6) Yetenekler  7) Portfolyo
             8) İletişim  9) Footer  10) Responsive  11) İnce hareketler  12) Tema, görseller, zaman çizelgesi, detay penceresi
   ========================================================= */

/* ---------- 1) TOKEN'LAR ---------- */
:root {
  /* ============================================================
     RENK PALETİ — Tüm sitenin renkleri şu beş değerden türer.
     Paleti değiştirmeniz için YALNIZCA aşağıdaki 5 rengi
     değiştirmeniz yeterli; menü, kartlar, yetenek göstergeleri,
     afiş kapakları, hover'lar ve koyu tema kendiliğinden uyum
     sağlar. (Metin renkleri okunabilirlik için "--ink" altında
     ayrı tutulur — onları gerekirse gözden geçirin.)
     ============================================================ */
  --sage:   #2563EB;   /* vurgu ve kenarların ana rengi            */
  --steel:  #334155;   /* terminal, ara / alt tonlar               */
  --sky:    #60A5FA;   /* ana vurgu: hover, imleç, odak            */
  --sky-2:  #0F172A;   /* en koyu uç: derin tonlar, kontrast       */
  --paper:  #F4F6FB;   /* sayfa zemini (soğuk açık gri-mavi)       */

  /* Paletten türetilen tonlar (elle dokunmanız gerekmez) */
  --accent:        var(--sage);
  --accent-strong: color-mix(in srgb, var(--accent) 82%, black);
  --accent-ink:    #FFFFFF;
  --highlight:     var(--sky);
  --meter-start:   var(--sage);   /* yetenek barı gradyan başlangıcı */

  --sky-soft:    color-mix(in srgb, var(--sky) 22%, transparent);
  --sky-mid:     color-mix(in srgb, var(--sky) 28%, transparent);
  --sky-dim:     color-mix(in srgb, var(--sky) 14%, transparent);
  --sky-faint:   color-mix(in srgb, var(--sky) 18%, transparent);
  --sky-focus:   color-mix(in srgb, var(--sky) 35%, transparent);
  --sky-rim:     color-mix(in srgb, var(--sky) 24%, transparent);
  --sky2-soft:   color-mix(in srgb, var(--sky-2) 30%, transparent);
  --steel-soft:  color-mix(in srgb, var(--steel) 28%, transparent);

  /* Metin — paletin koyu ucundan türetilir (okunabilirlik için) */
  --ink:        #0F172A;   /* ana metin  — koyu gece laciverti      */
  --ink-soft:   color-mix(in srgb, var(--ink) 72%, var(--paper)); /* ikincil metin — soğuk gri-mavi ton */

  --focus-ring: var(--ink);   /* klavye odak halkası (açık temada koyu) */

  /* Anlamsal token'lar */
  --bg:          var(--paper);
  --bg-alt:      color-mix(in srgb, var(--paper) 90%, var(--sky));
  --surface:     #FFFFFF;
  --border:      color-mix(in srgb, var(--paper) 78%, var(--ink-soft));

  /* Ölçü ve hareket */
  --wrap: 1140px;
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;
  --t-fast: 160ms ease;
  --t-base: 260ms cubic-bezier(.22,.61,.36,1);
  --shadow: 0 10px 30px -18px rgba(15, 23, 42, .45);

  color-scheme: light;
}

/* Koyu tema: gece mavisi zemin, açık mavi aksanlar (paletten türetilir) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:         var(--sky-2);
    --bg-alt:     color-mix(in srgb, var(--sky-2) 93%, var(--paper));
    --surface:    color-mix(in srgb, var(--sky-2) 88%, var(--paper));
    --border:     color-mix(in srgb, var(--paper) 20%, transparent);
    --ink:        color-mix(in srgb, var(--paper) 85%, #FFFFFF);
    --ink-soft:   color-mix(in srgb, var(--paper) 72%, var(--bg));
    --focus-ring: var(--sky);
    --accent:     var(--sky);
    --meter-start: color-mix(in srgb, var(--sage) 45%, var(--sky));
    --accent-ink: var(--sky-2);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg:         var(--sky-2);
  --bg-alt:     color-mix(in srgb, var(--sky-2) 93%, var(--paper));
  --surface:    color-mix(in srgb, var(--sky-2) 88%, var(--paper));
  --border:     color-mix(in srgb, var(--paper) 20%, transparent);
  --ink:        color-mix(in srgb, var(--paper) 85%, #FFFFFF);
  --ink-soft:   color-mix(in srgb, var(--paper) 72%, var(--bg));
  --focus-ring: var(--sky);
  --accent:     var(--sky);
  --meter-start: color-mix(in srgb, var(--sage) 45%, var(--sky));
  --accent-ink: var(--sky-2);
  color-scheme: dark;
}

/* ---------- 2) TEMEL ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Archivo", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .logo-text, .hero-role {
  font-family: "Space Grotesk", "Archivo", system-ui, sans-serif;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0 0 1em; }
img { max-width: 100%; display: block; }

a { color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding: clamp(72px, 11vw, 128px) 0; }
.section-alt { background: var(--bg-alt); }

.section-title {
  font-size: clamp(1.9rem, 4.2vw, 2.9rem);
  font-weight: 700;
  margin-bottom: .5em;
}

.section-lead {
  max-width: 54ch;
  color: var(--ink-soft);
  font-size: 1.06rem;
  margin-bottom: 2.6rem;
}

/* ---------- YETENEKLER — DAKTİLO (TYPEWRITER) METNİ ---------- */
/* Bağımsız isim alanı: .skills-typewriter* — sitedeki başka animasyonla çakışmaz */
.skills-typewriter {
  max-width: 640px;
  margin: 0 auto 2.6rem;
  text-align: center;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink-soft);
  opacity: .8;
  min-height: 3.4em;   /* iki satıra çıksa da alt içerik zıplamasın */
}

.skills-typewriter-caret {
  display: inline-block;
  width: 2px;
  height: 1.05em;
  margin-left: 3px;
  vertical-align: -0.15em;
  background: var(--sage);
  animation: skillsCaretBlink 1s steps(1, end) infinite;
}
@keyframes skillsCaretBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .skills-typewriter-caret { background: var(--sky); }
}
:root[data-theme="dark"] .skills-typewriter-caret { background: var(--sky); }

.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;
}

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; border-radius: var(--r-sm);
  transition: top var(--t-fast);
}
.skip-link:focus { top: 16px; }

/* Klavye odağı her yerde görünür kalsın */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) a:focus-visible,
  :root:not([data-theme="light"]) button:focus-visible,
  :root:not([data-theme="light"]) input:focus-visible,
  :root:not([data-theme="light"]) textarea:focus-visible { outline-color: var(--sky); }
}

/* Butonlar */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1rem; font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--t-fast), background-color var(--t-base),
              color var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: var(--shadow);
}
.btn-primary:hover { transform: translateY(-2px); background: var(--accent-strong); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--sage); background: var(--sky-faint); }
.btn-block { width: 100%; }

/* ---------- 3) ÜST MENÜ ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base), background-color var(--t-base);
}
.site-header.is-stuck { border-bottom-color: var(--border); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 72px;
}

.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-mark {
  width: 14px; height: 22px; border-radius: 3px;
  background: linear-gradient(180deg, var(--sage), var(--sky));
}
.logo-text { font-size: 1.06rem; font-weight: 700; }

.nav-list {
  display: flex; align-items: center; gap: 6px;
  list-style: none; margin: 0; padding: 0;
}
.nav-link {
  display: inline-flex; align-items: center;
  min-height: 44px; padding: 0 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--ink-soft);
  transition: color var(--t-fast), background-color var(--t-fast);
}
.nav-link:hover, .nav-link.is-active { color: var(--ink); background: var(--sky-soft); }
.nav-link-cta {
  background: var(--accent); color: var(--accent-ink); padding-inline: 20px;
}
.nav-link-cta:hover { background: var(--accent-strong); color: var(--accent-ink); }

.nav-toggle {
  display: none;
  width: 48px; height: 48px;
  border: 1px solid var(--border); border-radius: var(--r-sm);
  background: transparent; cursor: pointer;
  padding: 14px 12px;
}
.nav-toggle-bar {
  display: block; height: 2px; background: var(--ink); border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-fast);
}
.nav-toggle-bar + .nav-toggle-bar { margin-top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child  { transform: translateY(-4px) rotate(-45deg); }

/* Dil seçici (TR/EN) */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}
.lang-btn {
  min-height: 34px;
  padding: 0 14px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--t-fast), color var(--t-fast);
}
.lang-btn:hover { color: var(--ink); }
.lang-btn.is-active {
  background: var(--accent);
  color: var(--accent-ink);
}

/* ---------- 4) HERO ---------- */
.hero { padding: clamp(56px, 9vw, 104px) 0 clamp(64px, 10vw, 120px); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}

.hero-kicker {
  color: var(--ink-soft);
  font-size: .95rem;
  margin-bottom: 1.4rem;
  padding-left: 16px;
  border-left: 3px solid var(--sky);
}

.hero-title {
  font-size: clamp(2.8rem, 8.5vw, 5.4rem);
  font-weight: 700;
  margin-bottom: .18em;
}

.hero-role {
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  font-weight: 500;
  color: var(--sage);
  margin-bottom: 1.2rem;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero-role { color: var(--sky); }
}

.hero-lead {
  max-width: 46ch;
  color: var(--ink-soft);
  font-size: 1.08rem;
  margin-bottom: 2.2rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* Terminal penceresi: hero'nun görsel imzası */
.terminal {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(160deg,
    color-mix(in srgb, var(--sky-2) 94%, white) 0%,
    color-mix(in srgb, var(--sky-2) 84%, black) 55%,
    color-mix(in srgb, var(--sky-2) 92%, black) 100%);
  border: 1px solid color-mix(in srgb, var(--sky) 22%, transparent);
  box-shadow: 0 26px 60px -30px rgba(15, 23, 42, .75);
  animation: termIn 640ms cubic-bezier(.22,.61,.36,1) backwards;
}
@keyframes termIn { from { opacity: 0; transform: translateY(16px); } }

/* Üst çubuk ve macOS tarzı üç nokta */
.terminal-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 13px 16px;
  background: rgba(242, 244, 255, .05);
  border-bottom: 1px solid rgba(242, 244, 255, .08);
}
.dot { width: 11px; height: 11px; border-radius: 50%; flex: none; }
.dot-red    { background: #ED6A5E; }
.dot-yellow { background: #F4BF4F; }
.dot-green  { background: #61C554; }
.terminal-title {
  margin-left: auto;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: .76rem;
  color: rgba(242, 244, 255, .5);
}

/* Terminal içeriği */
.terminal-body {
  padding: 24px 22px 28px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: clamp(.86rem, 1.5vw, .98rem);
  line-height: 1.85;
  min-height: 210px;               /* animasyon sırasında zıplama olmasın */
}
.term-line { margin: 0; }
.term-meta { margin-top: 18px; }

.term-prompt { color: var(--steel); }
.term-prompt::after { content: " $"; color: rgba(242, 244, 255, .4); }
.term-cmd { color: #F2F4FF; margin-left: 8px; }

.term-out { color: #F2F4FF; }
.term-arrow { color: var(--sage); margin-right: 8px; }
.term-dim { color: rgba(242, 244, 255, .55); }

/* Yazılan unvan paletin vurgu rengiyle */
.type {
  color: var(--sky);
  font-weight: 500;
  letter-spacing: .01em;
}

/* Yanıp sönen imleç */
.caret {
  display: inline-block;
  width: 9px; height: 1.05em;
  margin-left: 4px;
  vertical-align: -.16em;
  background: var(--sky);
  border-radius: 1px;
  animation: caretBlink 1.05s steps(1, end) infinite;
}
@keyframes caretBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ---------- 4b) SOSYAL MEDYA ŞERİDİ ---------- */
.social-strip {
  background: var(--bg-alt);
  border-block: 1px solid var(--border);
  padding: clamp(28px, 4vw, 44px) 0;
}

/* Masaüstünde 4 sütun, dar ekranda 2x2 (aşağıdaki media query) */
.strip-list {
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.strip-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 20px 12px 18px;
  border-radius: var(--r-lg);
  text-decoration: none;
  color: var(--ink);
  transition: background-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
}

.strip-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px;
  margin-bottom: 10px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--sage);
  transition: transform var(--t-base), color var(--t-base),
              background-color var(--t-base), border-color var(--t-base);
}
.strip-icon svg { width: 26px; height: 26px; }

.strip-name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: 1.02rem;
  transition: color var(--t-base);
}

.strip-user {
  font-size: .88rem;
  color: var(--ink-soft);
  word-break: break-word;
  text-align: center;
}

/* Hover / odak: ikon yukarı kayar, büyür ve palet mavisiyle aydınlanır */
.strip-item:hover,
.strip-item:focus-visible {
  background: var(--sky-soft);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.strip-item:hover .strip-icon,
.strip-item:focus-visible .strip-icon {
  transform: translateY(-6px) scale(1.08);
  background: var(--sky);
  border-color: var(--sky);
  color: var(--sky-2);
}
.strip-item:hover .strip-name,
.strip-item:focus-visible .strip-name { color: var(--sage); }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .strip-icon { color: var(--sky); }
  :root:not([data-theme="light"]) .strip-item:hover .strip-name,
  :root:not([data-theme="light"]) .strip-item:focus-visible .strip-name { color: var(--sky); }
}

/* ---------- 5) HAKKIMDA ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}
.about-grid .section-title { grid-column: 1 / -1; }

.about-text p {
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 1.06rem;
}
.about-text p:first-child { color: var(--ink); font-size: 1.16rem; }

.about-facts { margin: 0; display: grid; gap: 2px; }
.fact {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 16px 20px;
}
.fact:first-child { border-radius: var(--r-md) var(--r-md) 0 0; }
.fact:last-child  { border-radius: 0 0 var(--r-md) var(--r-md); }
.fact dt {
  font-size: .82rem; color: var(--ink-soft); margin-bottom: 2px;
}
.fact dd { margin: 0; font-weight: 500; }

/* ---------- 6) YETENEKLER ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 24px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 26px 26px;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.skill-card:hover {
  transform: translateY(-4px);
  border-color: var(--sky);
  box-shadow: var(--shadow);
}

.skill-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; margin-bottom: 18px;
  border-radius: 12px;
  background: var(--sky-mid);
  color: var(--sage);
}
.skill-icon svg { width: 24px; height: 24px; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .skill-icon { color: var(--sky); background: var(--sky-dim); }
}

.skill-title { font-size: 1.32rem; font-weight: 700; margin-bottom: .4em; }
.skill-desc { color: var(--ink-soft); font-size: .97rem; margin-bottom: 1.6rem; }

/* Yetkinlik göstergeleri */
.meters { list-style: none; margin: 0 0 22px; padding: 0; display: grid; gap: 16px; }
.meter-head {
  display: flex; justify-content: space-between; gap: 12px;
  font-size: .92rem; margin-bottom: 7px;
}
.meter-val { color: var(--ink-soft); font-family: "Space Grotesk", monospace; }
.meter-track {
  display: block; height: 7px;
  background: color-mix(in srgb, var(--ink) 14%, transparent);
  border-radius: 999px; overflow: hidden;
}
.meter-fill {
  display: block; height: 100%; width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--meter-start), var(--sky));
  transition: width 900ms cubic-bezier(.22,.61,.36,1);
}

/* Etiketler */
.tags, .work-tags {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 8px;
}
.tags li {
  font-size: .82rem;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--sky2-soft);
  color: var(--ink);
  white-space: nowrap;
}

/* ---------- 7) PORTFOLYO ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.filter {
  min-height: 44px; padding: 0 20px;
  border: 1px solid var(--border); border-radius: 999px;
  background: transparent; color: var(--ink-soft);
  font-family: "Archivo", sans-serif; font-size: .95rem;
  cursor: pointer;
  transition: background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.filter:hover { border-color: var(--sage); color: var(--ink); }
.filter.is-active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.work-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.work-card:hover, .work-card:focus-within {
  transform: translateY(-6px);
  border-color: var(--sky);
  box-shadow: var(--shadow);
}
.work-card[hidden] { display: none; }

/* Görsel yerine paletten üretilen degrade kapaklar */
.work-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.thumb-a { background: linear-gradient(135deg, var(--sage), var(--steel)); }
.thumb-b { background: linear-gradient(135deg, var(--steel), var(--sky)); }
.thumb-c { background: linear-gradient(135deg, var(--sky), var(--paper)); }
.thumb-d { background: linear-gradient(150deg, var(--sage) 20%, var(--sky-2)); }
.thumb-e { background: linear-gradient(200deg, var(--sky-2), var(--sage)); }
.thumb-f { background: linear-gradient(120deg, var(--paper), var(--steel)); }

/* Üzerine gelince ince bir doku kayar */
.work-thumb::after {
  content: "";
  position: absolute; inset: -30%;
  background: repeating-linear-gradient(115deg, rgba(255,255,255,.34) 0 2px, transparent 2px 16px);
  opacity: 0;
  transform: translateX(-14%);
  transition: opacity var(--t-base), transform 600ms var(--t-base);
}
.work-card:hover .work-thumb::after,
.work-card:focus-within .work-thumb::after { opacity: 1; transform: translateX(0); }

.work-cat {
  position: absolute; left: 14px; top: 14px; z-index: 1;
  font-size: .78rem;
  padding: 5px 12px; border-radius: 999px;
  background: rgba(255,255,255,.92); color: var(--sky-2);
}

.work-body { padding: 22px 22px 24px; }
.work-title { font-size: 1.2rem; font-weight: 700; margin-bottom: .45em; }
.work-desc { color: var(--ink-soft); font-size: .95rem; margin-bottom: 1rem; }
.work-tags li {
  font-size: .78rem; color: var(--ink-soft);
  padding: 4px 10px; border: 1px solid var(--border); border-radius: var(--r-sm);
}

/* Kartın tamamını tıklanabilir yapan katman */
.work-link { position: absolute; inset: 0; }

.work-empty { color: var(--ink-soft); margin-top: 24px; }

/* ---------- 8) İLETİŞİM ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.socials { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.social {
  display: inline-flex; align-items: center; gap: 12px;
  min-height: 44px; padding: 8px 14px;
  border-radius: var(--r-md);
  text-decoration: none; color: var(--ink);
  transition: background-color var(--t-fast), transform var(--t-fast);
}
.social svg { width: 20px; height: 20px; color: var(--sage); flex: none; }
.social:hover { background: var(--sky-rim); transform: translateX(3px); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .social svg { color: var(--sky); }
}

.form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 26px;
  display: grid; gap: 18px;
}
.field { display: grid; gap: 7px; }
.field label { font-size: .92rem; font-weight: 500; }
.field input, .field textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  font: inherit; color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field textarea { resize: vertical; }
.field input:focus, .field textarea:focus {
  border-color: var(--sky);
  box-shadow: 0 0 0 3px var(--sky-focus);
}
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #B3261E; }

.error { color: #B3261E; font-size: .86rem; margin: 0; }
.form-status { margin: 0; font-size: .92rem; color: var(--ink-soft); min-height: 1.4em; }
.form-status.is-ok { color: var(--sage); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .error { color: #F2B8B5; }
  :root:not([data-theme="light"]) .form-status.is-ok { color: var(--sky); }
}

/* ---------- 9) FOOTER ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--ink-soft);
  font-size: .92rem;
}
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
.footer-inner p { margin: 0; }

/* ---------- 10) RESPONSIVE ---------- */
@media (max-width: 900px) {
  .hero-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .terminal { order: -1; }
  .terminal-body { min-height: 180px; padding: 20px 18px 24px; }
  .about-grid .section-title { margin-bottom: .3em; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    display: none;
    padding: 12px 24px 20px;
  }
  .nav.is-open { display: block; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-link { justify-content: flex-start; padding: 0 16px; }
  .nav-link-cta { justify-content: center; margin-top: 6px; }
  .hero-actions .btn { flex: 1 1 auto; }
  .work-grid, .skills-grid { grid-template-columns: 1fr; }
  /* Sosyal şerit mobilde 2x2 */
  .strip-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .strip-item { padding: 18px 8px 16px; }
  .strip-icon { width: 48px; height: 48px; }
}

/* Hareketi azalt tercihi: tüm animasyonlar sakinleşir */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* Kaydırınca beliren bölümler (JS ile tetiklenir) */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-visible {
  opacity: 1; transform: none;
  transition: opacity 600ms ease, transform 600ms cubic-bezier(.22,.61,.36,1);
}

/* ---------- 11) İNCE HAREKETLER ----------
   Hepsi "prefers-reduced-motion" tercihine saygılıdır (aşağıda kapatılır). */

/* Kaydırma ilerleme çubuğu (genişliği script.js scaleX ile günceller) */
.scroll-progress {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  height: 3px; pointer-events: none;
  transform-origin: 0 50%; transform: scaleX(0);
  background: linear-gradient(90deg, var(--meter-start), var(--sky));
}

/* Kartlar ve liste öğeleri bölüm görününce sırayla belirir.
   "backwards" doldurma: animasyon bitince normal stiller (hover dahil) geri döner. */
@keyframes itemIn { from { opacity: 0; transform: translateY(14px); } }
.reveal.is-visible :is(.fact, .skill-card, .work-card, .socials > li, .field, .tl-item) {
  animation: itemIn 520ms cubic-bezier(.22,.61,.36,1) backwards;
  animation-delay: calc(var(--i, 0) * 70ms + 120ms);
}

/* Hero terminali kaydırmayla çok hafif yukarı kayar (--py, script.js'ten) */
.terminal { transform: translateY(var(--py, 0px)); will-change: transform; }

/* İmleci izleyen yumuşak ışık: yalnızca fare/dokunmatik-ped olan cihazlarda */
@media (hover: hover) and (pointer: fine) {
  .skill-card, .work-card { --mx: 50%; --my: 0%; }
  .skill-card { position: relative; }
  .skill-card::before, .work-card::before {
    content: ""; position: absolute; inset: 0;
    border-radius: inherit; pointer-events: none;
    background: radial-gradient(360px circle at var(--mx) var(--my),
      color-mix(in srgb, var(--sky) 16%, transparent), transparent 65%);
    opacity: 0; transition: opacity var(--t-base);
  }
  .skill-card:hover::before, .work-card:hover::before { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal.is-visible :is(.fact, .skill-card, .work-card, .socials > li, .field, .tl-item) { animation: none !important; }
  .terminal { transform: none !important; will-change: auto; }
  .skill-card::before, .work-card::before { display: none; }
}

/* ---------- 12) TEMA DÜĞMESİ, PROJE GÖRSELLERİ, ZAMAN ÇİZELGESİ, DETAY PENCERESİ ---------- */

/* Buton içinde simge */
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-cv { gap: 10px; }

/* Üst menü: tema düğmesi + dil seçici birlikte */
.header-tools { display: flex; align-items: center; gap: 10px; }
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; padding: 0;
  border: 1px solid var(--border); border-radius: 999px;
  background: var(--surface); color: var(--ink-soft);
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}
.theme-toggle:hover { color: var(--ink); border-color: var(--sage); }
.theme-toggle svg { width: 18px; height: 18px; }
/* Simge hedef temayı gösterir: açıkta ay (koyuya geç), koyuda güneş (açığa geç) */
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* Tema değişirken renkler yumuşakça geçer (JS 350ms sonra kaldırır) */
.theme-switching, .theme-switching *, .theme-switching *::before, .theme-switching *::after {
  transition: background-color 300ms ease, color 300ms ease,
              border-color 300ms ease, fill 300ms ease, stroke 300ms ease !important;
}

/* Proje kartı: bağlantı yerine düğme, gerçek görsel */
.work-link {
  width: 100%; height: 100%; padding: 0; margin: 0;
  border: 0; border-radius: inherit; background: transparent;
  color: inherit; font: inherit; cursor: pointer;
}
.work-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(.22,.61,.36,1);
}
.work-card:hover .work-img, .work-card:focus-within .work-img { transform: scale(1.04); }
/* Gerçek görsel varken ince doku efekti gerekmez */
.work-thumb.has-img::after { display: none; }

/* Hakkımda: zaman çizelgesi */
.timeline-wrap { margin-top: clamp(44px, 6vw, 80px); --tl-when: 96px; }
.timeline-title { font-size: 1.35rem; margin-bottom: 1.5em; }
.timeline { list-style: none; margin: 0; padding: 0; }
.tl-item {
  position: relative;
  display: grid;
  grid-template-columns: var(--tl-when) 28px minmax(0, 1fr);
  padding-bottom: 30px;
}
/* Dikey çizgi: noktaların altından bir sonrakine iner */
.tl-item::before {
  content: "";
  position: absolute; top: 14px; bottom: -6px;
  left: calc(var(--tl-when) + 13px); width: 2px;
  background: var(--border);
}
.tl-item:last-child { padding-bottom: 0; }
.tl-item:last-child::before { display: none; }
.tl-when {
  padding: 2px 16px 0 0;
  text-align: right;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: .85rem; color: var(--ink-soft);
}
.tl-dot {
  position: relative; z-index: 1;
  width: 12px; height: 12px; margin: 5px 0 0 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--bg);
}
.tl-item:last-child .tl-dot { background: var(--sky); box-shadow: 0 0 0 4px var(--bg), 0 0 0 6px var(--sky-rim); }
.tl-body { padding-left: 16px; }
.tl-t { font-size: 1.05rem; font-weight: 700; margin: 0 0 .25em; }
.tl-d { margin: 0; color: var(--ink-soft); max-width: 60ch; }

/* Proje detay penceresi (native <dialog>) */
.pd {
  padding: 0; margin: auto;
  width: min(1040px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px); /* tarayıcının varsayılanı daha küçük olduğu için altı kırpılıyordu */
  border: 1px solid var(--border); border-radius: var(--r-lg);
  background: var(--surface); color: var(--ink);
  overflow: hidden;
  box-shadow: var(--shadow), 0 40px 80px -30px rgba(0, 0, 0, .5);
}
.pd [hidden] { display: none !important; }
.pd::backdrop { background: rgba(15, 23, 42, .62); backdrop-filter: blur(4px); }
.pd[open] { animation: pdIn 260ms cubic-bezier(.22,.61,.36,1); }
.pd[open]::backdrop { animation: pdFade 260ms ease; }
@keyframes pdIn { from { opacity: 0; transform: translateY(14px) scale(.985); } }
@keyframes pdFade { from { opacity: 0; } }
/* Pencere açıkken arka plan kaymasın */
html:has(dialog[open]) { overflow: hidden; }

.pd-shell {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  height: min(620px, calc(100dvh - 34px)); /* 34 = 32 boşluk + 2 kenarlık */
}
.pd-close {
  position: absolute; top: 14px; right: 14px; z-index: 3;
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; padding: 0;
  border: 1px solid var(--border); border-radius: 50%;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  color: var(--ink); cursor: pointer;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}
.pd-close:hover { border-color: var(--sage); }
.pd-close svg { width: 18px; height: 18px; }

.pd-media { display: flex; flex-direction: column; min-height: 0; background: var(--bg-alt); }
.pd-stage { position: relative; flex: 1; min-height: 0; overflow: hidden; }
.pd-stage img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.pd-thumbs { display: flex; gap: 8px; padding: 10px; overflow-x: auto; background: var(--bg-alt); }
.pd-thumb {
  flex: none; width: 76px; aspect-ratio: 16 / 10; padding: 0;
  border: 2px solid transparent; border-radius: 8px; overflow: hidden;
  background: var(--surface); cursor: pointer; opacity: .72;
  transition: opacity var(--t-fast), border-color var(--t-fast);
}
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pd-thumb:hover { opacity: 1; }
.pd-thumb[aria-current="true"] { border-color: var(--accent); opacity: 1; }

.pd-info { display: flex; flex-direction: column; gap: 14px; padding: 34px 30px 22px; overflow-y: auto; }
.pd-cat {
  align-self: flex-start;
  font-size: .78rem; padding: 5px 12px; border-radius: 999px;
  background: var(--sky-mid); color: var(--ink);
}
.pd-title { font-size: 1.6rem; line-height: 1.2; margin: 0; padding-right: 34px; }
.pd-desc { margin: 0; color: var(--ink-soft); }
.pd-meta { margin: 6px 0 0; display: grid; gap: 10px; }
.pd-row { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 12px; padding-top: 10px; border-top: 1px solid var(--border); }
.pd-row dt { font-size: .85rem; color: var(--ink-soft); }
.pd-row dd { margin: 0; font-weight: 500; }
.pd-links { display: flex; flex-wrap: wrap; gap: 10px; }
.pd-links .btn { min-height: 44px; padding: 0 20px; font-size: .95rem; }
.pd-nav {
  margin-top: auto; padding-top: 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border-top: 1px solid var(--border);
}
.pd-step {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; padding: 0;
  border: 1px solid var(--border); border-radius: 50%;
  background: transparent; color: var(--ink); cursor: pointer;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}
.pd-step:hover { border-color: var(--sage); background: var(--sky-faint); }
.pd-step svg { width: 18px; height: 18px; }
.pd-count { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: .85rem; color: var(--ink-soft); }

@media (max-width: 900px) {
  .pd-shell { grid-template-columns: 1fr; height: auto; max-height: calc(100dvh - 34px); overflow-y: auto; }
  /* Kapat düğmesi kaydırırken de üstte sabit kalır (yer kaplamaz, görselin üstüne biner) */
  .pd-close { position: sticky; top: 12px; right: auto; justify-self: end; margin: 12px 12px -52px 0; }
  .pd-media { display: block; }
  .pd-stage { flex: none; aspect-ratio: 16 / 10; }
  .pd-info { overflow: visible; padding: 24px 22px 0; }
  /* Mobilde önceki/sonraki düğmeleri kaydırırken altta sabit kalır */
  .pd-nav {
    position: sticky; bottom: 0; z-index: 2;
    margin: 6px -22px 0; padding: 14px 22px 16px;
    background: var(--surface);
  }
}
@media (max-width: 720px) {
  .timeline-wrap { --tl-when: 64px; }
  .tl-when { padding-right: 10px; font-size: .78rem; }
  .tl-body { padding-left: 12px; }
}

/* En küçük telefonlarda üst menü sıkışır: tema düğmesi eklendiği için boşluklar daralır */
@media (max-width: 400px) {
  .header-inner { gap: 8px; }
  .header-tools { gap: 6px; }
  .theme-toggle { width: 38px; height: 38px; }
  .lang-btn { padding: 0 9px; }
  .logo { gap: 8px; }
  .logo-text { font-size: .95rem; }
}

@media (prefers-reduced-motion: reduce) {
  .pd[open], .pd[open]::backdrop { animation: none; }
  .work-card:hover .work-img, .work-card:focus-within .work-img { transform: none; }
}