/* ============================================================
   ARDA YİĞİT ÇETİN — Portfolyo / Resume
   Tasarım dili: Sessiz Lüks (Quiet Luxury) + Glassmorphism
   ============================================================ */

/* ---------- 1. Tasarım Değişkenleri ---------- */
:root {
  /* Yüzeyler */
  --bg-primary: #ececeb;          /* sıcak mat kum grisi */
  --bg-secondary: #ffffff;        /* saf beyaz kart */
  --bg-elevated: rgba(255, 255, 255, 0.45);

  /* Tipografi renkleri */
  --text-primary: #333535;        /* koyu füme */
  --text-secondary: #727474;      /* orta mat gri */
  --text-tertiary: #b0b3b2;       /* açık gümüş gri */

  /* Sınırlar */
  --border-subtle: rgba(176, 179, 178, 0.3);
  --border-strong: rgba(176, 179, 178, 0.55);

  /* Durum / vurgu renkleri */
  --sage: #529e72;                /* sage green */
  --slate: #5d8aa6;               /* slate blue */
  --gold: #cca03f;                /* warm gold */
  --rose: #c2575e;                /* dusty rose */

  /* Glass efekti */
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-blur: blur(12px) saturate(160%);

  /* Spotlight (her kart kendi --accent'ini set eder) */
  --accent: var(--slate);
  --accent-soft: rgba(93, 138, 166, 0.18);

  /* Ritim */
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --maxw: 1140px;
  --gutter: clamp(20px, 5vw, 64px);

  --shadow-soft: 0 1px 2px rgba(51, 53, 53, 0.04),
                 0 8px 24px rgba(51, 53, 53, 0.06);
  --shadow-lift: 0 4px 8px rgba(51, 53, 53, 0.06),
                 0 18px 48px rgba(51, 53, 53, 0.10);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 2. Reset & Temel ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 400;
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.7;
  letter-spacing: -0.002em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Sayfa atmosferi: çok hafif, hareketsiz renk lekeleri */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(40vw 40vw at 12% 8%,  rgba(93, 138, 166, 0.07), transparent 60%),
    radial-gradient(38vw 38vw at 88% 22%, rgba(82, 158, 114, 0.06), transparent 60%),
    radial-gradient(46vw 46vw at 80% 90%, rgba(204, 160, 63, 0.05), transparent 62%),
    radial-gradient(40vw 40vw at 8% 88%,  rgba(194, 87, 94, 0.045), transparent 60%);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 { font-weight: 800; line-height: 1.12; letter-spacing: -0.02em; margin: 0; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 700; }
p  { margin: 0; }

/* Genel yardımcılar */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

section { padding-block: clamp(72px, 11vw, 140px); position: relative; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-secondary);
}
.eyebrow::before {
  content: ""; width: 26px; height: 1.5px; background: var(--accent); display: inline-block; border-radius: 2px;
}

.section-head { max-width: 720px; margin-bottom: clamp(36px, 6vw, 64px); }
.section-head h2 { margin-top: 14px; }
.section-head .lead { margin-top: 16px; color: var(--text-secondary); font-size: 1.05rem; font-weight: 300; }

/* Reveal animasyonu (main.js IntersectionObserver ile .in-view ekler) */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in-view { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 3. Glass kart + Spotlight ---------- */
.glass-card {
  position: relative;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
}
.glass-card:hover { box-shadow: var(--shadow-lift); border-color: var(--border-strong); }

/* imleci takip eden parıltı — her kart kendi --accent rengi ile */
.glass-card .spotlight {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0; transition: opacity 0.45s var(--ease);
  background: radial-gradient(
    420px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    var(--accent-soft), transparent 60%);
}
.glass-card:hover .spotlight { opacity: 1; }
.glass-card > *:not(.spotlight) { position: relative; z-index: 1; }

/* ---------- 4. Navigasyon (Scroll Spy) ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(236, 236, 235, 0.72);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border-bottom-color: var(--border-subtle);
}
.nav-inner {
  max-width: var(--maxw); margin-inline: auto; padding: 14px var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: -0.02em; }
.brand .monogram {
  width: 38px; height: 38px; border-radius: 11px; flex: none;
  display: grid; place-items: center;
  background: var(--text-primary); color: #fff; font-size: 0.95rem; font-weight: 800; letter-spacing: 0.02em;
}
.brand .brand-name { font-size: 1rem; }
.brand .brand-role { display: block; font-size: 0.72rem; font-weight: 500; color: var(--text-secondary); letter-spacing: 0.02em; }

.nav-links { display: flex; align-items: center; gap: 4px; position: relative; }
.nav-links a {
  position: relative; padding: 8px 14px; font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
  border-radius: 10px; transition: color 0.3s var(--ease);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active { color: var(--text-primary); font-weight: 600; }
/* kayan aktif çizgi */
.nav-indicator {
  position: absolute; bottom: 2px; height: 2px; border-radius: 2px;
  background: var(--accent); transition: left 0.45s var(--ease), width 0.45s var(--ease), background 0.45s var(--ease);
  left: 0; width: 0;
}
.nav-cta {
  padding: 9px 18px; border-radius: 12px; font-size: 0.88rem; font-weight: 600;
  background: var(--text-primary); color: #fff; border: 1px solid var(--text-primary);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-cta:hover { transform: translateY(-1px); opacity: 0.92; }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; color: var(--text-primary); }
.nav-toggle svg { width: 26px; height: 26px; }

/* ---------- 5. Hero ---------- */
.hero { padding-top: clamp(130px, 18vh, 200px); padding-bottom: clamp(60px, 9vw, 110px); }
.hero-grid { display: grid; grid-template-columns: 1.45fr 0.9fr; gap: clamp(32px, 5vw, 72px); align-items: center; }

.hero .status {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 0.82rem; font-weight: 600; color: var(--text-secondary);
  background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle); border-radius: 100px; padding: 7px 15px;
}
.hero .status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--sage); box-shadow: 0 0 0 4px rgba(82,158,114,0.18); }

.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.02;
  margin: 22px 0 0;
}
/* Başlık vurgusu — sessiz lüks: sade italik */
.hero h1 .grad { color: var(--text-primary); font-style: italic; }
.hero .role {
  margin-top: 24px; display: flex; flex-wrap: wrap; gap: 9px;
}
.hero .role span {
  white-space: nowrap; font-size: 0.84rem; font-weight: 600; color: var(--text-secondary);
  background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle); padding: 7px 15px; border-radius: 100px;
}

.hero .summary {
  margin-top: 26px; max-width: 640px; font-size: 1.04rem; font-weight: 300; color: var(--text-secondary); line-height: 1.85;
  text-align: justify; text-justify: inter-word; hyphens: auto;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 24px; border-radius: 14px; font-size: 0.95rem; font-weight: 600;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease), color 0.35s var(--ease);
  border: 1px solid transparent;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--text-primary); color: #fff; box-shadow: var(--shadow-soft); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.btn-ghost {
  background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border-color: var(--border-subtle); color: var(--text-primary);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.btn-sm { padding: 9px 16px; font-size: 0.85rem; border-radius: 11px; }

/* Hero portre kartı — minimal & küçük */
.hero-portrait { position: relative; justify-self: end; width: 100%; max-width: 288px; }
.portrait-card { padding: 10px; }
.portrait-frame {
  border-radius: calc(var(--radius-lg) - 12px); overflow: hidden; aspect-ratio: 4 / 5; background: #dededc;
  display: grid; place-items: center;
}
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; }
.portrait-frame .ph { color: var(--text-tertiary); font-weight: 600; font-size: 0.85rem; text-align: center; padding: 20px; }
.portrait-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 8px 4px; }
.portrait-meta .nm { font-size: 0.86rem; color: var(--text-primary); font-weight: 700; letter-spacing: -0.01em; }
.portrait-meta .gpa { font-size: 0.78rem; color: var(--sage); font-weight: 800; white-space: nowrap; }

/* Hızlı bilgi şeridi */
.hero-facts {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 52px;
}
.fact { padding: 20px 22px; }
.fact .n { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; letter-spacing: -0.02em; }
.fact .l { font-size: 0.82rem; color: var(--text-secondary); font-weight: 500; margin-top: 4px; }
.fact-link { text-decoration: none; transition: transform 0.35s var(--ease); }
.fact-link:hover { transform: translateY(-2px); }
.fact .fact-ic { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 12px; }
.fact .fact-ic svg { width: 20px; height: 20px; }
.fact .n2 { font-size: 1.22rem; font-weight: 800; letter-spacing: 0.02em; }
.fact .l .inl { display: inline-flex; vertical-align: -2px; opacity: 0; transform: translateX(-3px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease); }
.fact .l .inl svg { width: 14px; height: 14px; }
.fact-link:hover .l .inl { opacity: 1; transform: translateX(0); }

/* ---------- 6. Projeler ---------- */
.projects { background: linear-gradient(180deg, transparent, rgba(255,255,255,0.25), transparent); }
.project-list { display: flex; flex-direction: column; gap: clamp(28px, 4vw, 44px); }

.project {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 0; align-items: stretch;
}
.project .pj-main { padding: clamp(28px, 3.4vw, 48px); display: flex; flex-direction: column; }
.project .pj-side {
  position: relative; padding: clamp(24px, 3vw, 40px);
  border-left: 1px solid var(--border-subtle);
  display: flex; flex-direction: column; gap: 18px; justify-content: center;
  background: rgba(255,255,255,0.16);
}

/* Logo filigranı: solgun/desatüre dururken hover'da canlı renge döner */
.pj-logo-wm {
  position: absolute; right: -6%; top: 50%; transform: translateY(-50%) rotate(-4deg);
  width: 62%; max-width: 360px; aspect-ratio: 1; opacity: 0.10; z-index: 0; pointer-events: none;
  color: var(--accent);
  filter: grayscale(1); transition: opacity 0.6s var(--ease), filter 0.6s var(--ease), transform 0.6s var(--ease);
  display: grid; place-items: center;
}
.pj-logo-wm svg, .pj-logo-wm img { width: 100%; height: 100%; object-fit: contain; }
.project:hover .pj-logo-wm { opacity: 0.5; filter: grayscale(0); transform: translateY(-50%) rotate(0deg) scale(1.03); }
.pj-side > * { position: relative; z-index: 1; }

.pj-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.pj-mark {
  flex: none; display: flex; align-items: center; transform-origin: left center;
  filter: grayscale(1); opacity: 0.7; transition: filter 0.5s var(--ease), opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.pj-mark img { height: 46px; width: auto; max-width: 150px; object-fit: contain; }
.project:hover .pj-mark { filter: grayscale(0); opacity: 1; transform: scale(1.03); }

.pj-status {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 7px; color: var(--accent);
}
.pj-status .blink { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.pj-status.live .blink { animation: blink 1.8s var(--ease) infinite; }
@keyframes blink { 0%,100%{opacity:1; box-shadow:0 0 0 0 var(--accent-soft);} 50%{opacity:.5; box-shadow:0 0 0 6px transparent;} }

.pj-title { margin-top: 18px; font-size: clamp(1.35rem, 2.4vw, 1.85rem); font-weight: 800; }
.pj-sub { margin-top: 20px; color: var(--text-secondary); font-weight: 500; font-size: 0.98rem; }
.pj-period { margin-top: 4px; color: var(--text-tertiary); font-size: 0.85rem; font-weight: 600; letter-spacing: 0.02em; }

.pj-desc { margin-top: 20px; color: var(--text-secondary); font-weight: 300; font-size: 1rem; line-height: 1.8; }
.pj-desc ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 12px; }
.pj-desc li { position: relative; padding-left: 22px; }
.pj-desc li::before {
  content: ""; position: absolute; left: 0; top: 11px; width: 7px; height: 7px; border-radius: 2px;
  background: var(--accent); transform: rotate(45deg);
}

.pj-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.pj-tag {
  font-size: 0.76rem; font-weight: 600; color: var(--text-secondary);
  background: rgba(255,255,255,0.55); border: 1px solid var(--border-subtle);
  padding: 5px 12px; border-radius: 100px; transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.project:hover .pj-tag { border-color: var(--accent-soft); }

.pj-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Önizleme paneli (logo merkezli, ekran görüntüsü içermez) */
.pj-preview {
  border-radius: var(--radius-md); border: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.4); overflow: hidden;
  aspect-ratio: 16 / 11; display: grid; place-items: center; position: relative;
}
.pj-preview .preview-logo {
  width: 46%; max-width: 200px; aspect-ratio: 1; display: grid; place-items: center;
  color: var(--accent);
  filter: grayscale(1); opacity: 0.55; transition: filter 0.6s var(--ease), opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.pj-preview .preview-logo.wordmark { width: 82%; max-width: 300px; aspect-ratio: auto; }
.pj-preview .preview-logo svg, .pj-preview .preview-logo img { width: 100%; height: 100%; object-fit: contain; }
.project:hover .pj-preview .preview-logo { filter: grayscale(0); opacity: 1; transform: scale(1.04); }
.pj-preview .preview-caption {
  position: absolute; bottom: 14px; left: 16px; right: 16px;
  font-size: 0.78rem; color: var(--text-tertiary); font-weight: 600; letter-spacing: 0.04em;
}

.pj-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.pj-chip {
  font-size: 0.8rem; font-weight: 600; color: var(--text-secondary);
  background: rgba(255,255,255,0.6); border: 1px solid var(--border-subtle);
  padding: 8px 14px; border-radius: 11px; transition: all 0.3s var(--ease);
}
.pj-chip:hover { color: var(--text-primary); border-color: var(--border-strong); transform: translateY(-1px); }
.pj-chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ---------- 7. Deneyim Timeline ---------- */
.timeline { position: relative; display: flex; flex-direction: column; gap: 0; }
.timeline::before {
  content: ""; position: absolute; left: 19px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(var(--border-strong), var(--border-subtle));
}
.tl-item { position: relative; padding: 0 0 clamp(32px, 4vw, 48px) 60px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-node {
  position: absolute; left: 8px; top: 4px; width: 24px; height: 24px; border-radius: 50%;
  background: var(--bg-primary); border: 2px solid var(--accent); display: grid; place-items: center; z-index: 1;
}
.tl-node::after { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.tl-card { padding: clamp(22px, 2.6vw, 32px); }
.tl-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 10px; }
.tl-role { font-size: 1.18rem; font-weight: 800; }
.tl-period {
  font-size: 0.8rem; font-weight: 700; color: var(--accent); letter-spacing: 0.03em;
  background: var(--accent-soft); padding: 5px 12px; border-radius: 100px; white-space: nowrap;
}
.tl-org { margin-top: 4px; color: var(--text-secondary); font-weight: 600; font-size: 0.95rem; }
.tl-points { margin: 18px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 12px; }
.tl-points li { position: relative; padding-left: 22px; color: var(--text-secondary); font-weight: 300; font-size: 0.97rem; line-height: 1.75; }
.tl-points li::before { content: ""; position: absolute; left: 2px; top: 11px; width: 8px; height: 1.5px; background: var(--accent); }

/* ---------- 8. Eğitim & Diller ---------- */
.two-col { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(24px, 3vw, 40px); align-items: start; }
.edu-list { display: flex; flex-direction: column; gap: 16px; }
.edu-card { padding: 24px 26px; display: flex; gap: 18px; align-items: flex-start; }
.edu-icon { width: 44px; height: 44px; border-radius: 12px; flex: none; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.edu-icon svg { width: 22px; height: 22px; }
.edu-icon.edu-logo { background: var(--bg-secondary); border: 1px solid var(--border-subtle); overflow: hidden; }
.edu-icon.edu-logo img { width: 100%; height: 100%; object-fit: contain; padding: 5px; }
.edu-school { font-size: 1.08rem; font-weight: 800; }
.edu-dept { color: var(--text-secondary); font-weight: 500; margin-top: 2px; font-size: 0.95rem; }
.edu-meta { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 12px; font-size: 0.82rem; color: var(--text-tertiary); font-weight: 600; }
.edu-meta b { color: var(--text-secondary); font-weight: 700; }
.gpa-pill { color: var(--sage); font-weight: 800; }

.lang-card { padding: 28px; display: flex; flex-direction: column; gap: 22px; height: 100%; }
.lang-item .lang-top { display: flex; justify-content: space-between; align-items: baseline; }
.lang-name { font-weight: 800; font-size: 1.05rem; }
.lang-level { font-size: 0.82rem; font-weight: 700; color: var(--accent); }
.lang-bar { height: 6px; border-radius: 100px; background: rgba(176,179,178,0.25); margin-top: 10px; overflow: hidden; }
.lang-bar i { display: block; height: 100%; border-radius: 100px; background: var(--accent); width: 0; transition: width 1.1s var(--ease); }
.lang-note { margin-top: 12px; font-size: 0.88rem; color: var(--text-secondary); font-weight: 300; line-height: 1.7; }

/* ---------- 9. Beceriler ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 2.2vw, 24px); }
.skill-card { padding: 26px 28px; }
.skill-card .sk-head { display: flex; align-items: center; gap: 14px; }
.skill-card .sk-ic { width: 42px; height: 42px; border-radius: 12px; flex: none; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.skill-card .sk-ic svg { width: 22px; height: 22px; }
.skill-card h3 { font-size: 1.05rem; font-weight: 800; }
.sk-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.sk-tags span {
  font-size: 0.82rem; font-weight: 600; color: var(--text-secondary);
  background: rgba(255,255,255,0.55); border: 1px solid var(--border-subtle);
  padding: 6px 13px; border-radius: 100px; transition: all 0.3s var(--ease);
}
.skill-card:hover .sk-tags span { border-color: var(--accent-soft); }

/* ---------- 10. Sertifikalar ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cert-card { padding: 22px 24px; display: flex; flex-direction: column; gap: 12px; min-height: 150px; }
.cert-top { display: flex; align-items: center; justify-content: space-between; }
.cert-ic { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.cert-ic svg { width: 19px; height: 19px; }
.cert-date { font-size: 0.78rem; font-weight: 700; color: var(--text-tertiary); letter-spacing: 0.03em; }
.cert-name { font-size: 0.95rem; font-weight: 800; line-height: 1.35; margin-top: auto; }
.cert-org { font-size: 0.82rem; color: var(--text-secondary); font-weight: 500; }

/* ---------- 11. Hobiler & Sosyal ---------- */
.hobby-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(18px, 2.6vw, 28px); }
.hobby-card { padding: clamp(26px, 3vw, 38px); }
.hobby-card .hb-ic { width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); margin-bottom: 18px; }
.hobby-card .hb-ic svg { width: 26px; height: 26px; }
.hobby-card h3 { font-size: 1.2rem; font-weight: 800; }
.hobby-card p { margin-top: 14px; color: var(--text-secondary); font-weight: 300; line-height: 1.8; font-size: 0.98rem; }

/* ---------- 12. İletişim / Footer ---------- */
.contact { padding-bottom: clamp(40px, 6vw, 80px); }
.contact-card { padding: clamp(36px, 5vw, 64px); text-align: center; }
.contact-card h2 { margin-bottom: 14px; }
.contact-card .lead { color: var(--text-secondary); font-weight: 300; max-width: 540px; margin: 0 auto 30px; font-size: 1.05rem; }
.contact-methods { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.cm {
  display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border-radius: 13px;
  background: rgba(255,255,255,0.55); border: 1px solid var(--border-subtle); font-weight: 600; font-size: 0.92rem;
  transition: all 0.35s var(--ease);
}
.cm svg { width: 18px; height: 18px; color: var(--accent); }
.cm:hover { transform: translateY(-2px); border-color: var(--border-strong); box-shadow: var(--shadow-soft); }

.footer { padding: 40px 0 56px; border-top: 1px solid var(--border-subtle); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.footer .meta { color: var(--text-tertiary); font-size: 0.85rem; font-weight: 500; }
.footer .meta b { color: var(--text-secondary); }
.to-top { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); }
.to-top svg { width: 16px; height: 16px; }

/* ---------- 12b. Gerçek logo / mockup / şirket logoları ---------- */
/* Önizleme panelinde gerçek wordmark logosu (soluk -> hover'da tam) */
.pj-preview .logo-img {
  width: 78%; max-width: 290px; height: auto; object-fit: contain;
  opacity: 0.42; filter: grayscale(1);
  transition: opacity 0.6s var(--ease), filter 0.6s var(--ease), transform 0.6s var(--ease);
}
.project:hover .pj-preview .logo-img { opacity: 1; filter: grayscale(0); transform: scale(1.03); }

/* Birikim mockup görseli — sağ panelde dikey ortalı */
.pj-preview.mockup { aspect-ratio: auto; padding: 22px 14px; background: rgba(255,255,255,0.32); }
.pj-preview .mockup-img {
  max-height: 340px; max-width: 100%; width: auto; height: auto; border-radius: 16px;
  box-shadow: var(--shadow-soft); opacity: 0.96;
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
}
.project:hover .pj-preview .mockup-img { opacity: 1; transform: translateY(-4px); box-shadow: var(--shadow-lift); }

/* Geliştirme aşamasında — pasif buton */
.btn-soft {
  background: rgba(255,255,255,0.5); border: 1px dashed var(--border-strong); color: var(--text-secondary);
  cursor: default;
}
.btn-soft:hover { transform: none; }

/* Timeline — şirket logosu + birleşik roller */
.tl-company { display: flex; align-items: center; gap: 14px; }
.tl-logo {
  width: 50px; height: 50px; border-radius: 13px; flex: none; display: grid; place-items: center;
  background: var(--bg-secondary); border: 1px solid var(--border-subtle); overflow: hidden; box-shadow: var(--shadow-soft);
}
.tl-logo img { width: 100%; height: 100%; object-fit: contain; padding: 7px; }
/* Paloma — mavi logonun beyaz kenarları yerine kendi arka plan rengi */
.tl-logo.paloma { background: #67a1b9; border-color: #5b93aa; }
.tl-logo.paloma img { padding: 0; object-fit: cover; }
.tl-logo .mono { font-weight: 800; color: var(--accent); font-size: 1.05rem; letter-spacing: 0.02em; }
.tl-company .co-name { font-size: 1.12rem; font-weight: 800; }
.tl-company .co-loc { color: var(--text-secondary); font-weight: 500; font-size: 0.9rem; margin-top: 1px; }
.tl-tenure {
  font-size: 0.78rem; font-weight: 700; color: var(--accent); background: var(--accent-soft);
  padding: 5px 13px; border-radius: 100px; white-space: nowrap;
}
.tl-roles { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.tl-role-row {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 14px;
  padding: 13px 17px; background: rgba(255,255,255,0.42); border: 1px solid var(--border-subtle); border-radius: 13px;
  transition: border-color 0.3s var(--ease);
}
.tl-card:hover .tl-role-row { border-color: var(--accent-soft); }
.tl-role-row .r { font-weight: 700; font-size: 0.98rem; }
.tl-role-row .p { font-size: 0.78rem; font-weight: 700; color: var(--accent); letter-spacing: 0.02em; }
.tl-note { margin-top: 16px; font-size: 0.88rem; color: var(--text-secondary); font-weight: 300; }

/* Sosyal sorumluluk — kurum logosu */
.hb-org { display: inline-flex; align-items: center; gap: 12px; margin-top: 18px; padding: 10px 16px;
  background: rgba(255,255,255,0.45); border: 1px solid var(--border-subtle); border-radius: 14px; }
.hb-org img { height: 34px; width: auto; object-fit: contain; }
.hb-org .mono { font-weight: 800; color: var(--accent); }
.hb-org .lbl { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }

/* Sadeleştirilmiş footer */
.footer { padding: 36px 0; border-top: 1px solid var(--border-subtle); text-align: center; }
.footer .copyline { color: var(--text-secondary); font-size: 0.9rem; font-weight: 600; letter-spacing: 0.01em; }

/* ---------- 13. Responsive ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-portrait { max-width: 340px; }
  .hero-facts { grid-template-columns: repeat(2, 1fr); }
  .project { grid-template-columns: 1fr; }
  .project .pj-side { border-left: 0; border-top: 1px solid var(--border-subtle); }
  .pj-logo-wm { width: 50%; opacity: 0.08; }
  .two-col { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; align-items: stretch; gap: 2px;
    position: absolute; top: 100%; left: 0; right: 0; padding: 14px var(--gutter) 22px;
    background: rgba(236,236,235,0.96); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav.open .nav-links a { padding: 12px 14px; }
  .nav-indicator { display: none; }
  .skills-grid, .hobby-grid { grid-template-columns: 1fr; }
  .hero-facts { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: clamp(2.3rem, 11vw, 3.2rem); }
  .nav-cta { display: none; }
}
@media (max-width: 480px) {
  .cert-grid { grid-template-columns: 1fr; }
  .hero-facts { grid-template-columns: 1fr 1fr; }
  .hero-actions .btn { flex: 1 1 100%; justify-content: center; }
}