/* ===== Renkler ve temel ayarlar ===== */
:root {
  --bg: #0b0f17;
  --bg-2: #111827;
  --card: #141b2b;
  --border: #232c40;
  --text: #e6e9ef;
  --muted: #9aa4b8;
  --accent: #5eead4;   /* turkuaz */
  --accent-2: #a78bfa; /* mor */
  --radius: 14px;
  --max: 1080px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: 20px;
}

/* ===== Üst menü ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 15, 23, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--text);
  font-size: 1.05rem;
}
.logo span { color: var(--accent); }
.nav ul {
  list-style: none;
  display: flex;
  gap: 26px;
  margin: 0;
  padding: 0;
}
.nav ul a { color: var(--muted); font-size: 0.95rem; }
.nav ul a:hover { color: var(--text); text-decoration: none; }
.menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 1.1rem;
  cursor: pointer;
}

@media (max-width: 760px) {
  .menu-btn { display: block; }
  .nav ul {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
  }
  .nav ul.open { display: flex; }
  .nav ul a { display: block; padding: 14px 20px; }
}

/* ===== Giriş bölümü ===== */
.hero {
  padding-block: 110px 90px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto auto;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.18), transparent 65%);
  pointer-events: none;
}
.hello {
  font-family: var(--mono);
  color: var(--accent);
  margin: 0 0 14px;
}
.cursor {
  display: inline-block;
  width: 9px;
  height: 1.1em;
  background: var(--accent);
  vertical-align: text-bottom;
  margin-left: 4px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }

.hero h1 {
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.02em;
}
.hero h2 {
  font-size: clamp(1.2rem, 3.2vw, 1.8rem);
  color: var(--muted);
  font-weight: 500;
  margin: 12px 0 22px;
}
.grad {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead { max-width: 620px; color: var(--muted); font-size: 1.08rem; }

.buttons { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  transition: background 0.2s, color 0.2s;
}
.btn:hover { background: rgba(94, 234, 212, 0.1); text-decoration: none; }
.btn.primary { background: var(--accent); color: #062420; }
.btn.primary:hover { background: #8af3e2; }

/* ===== Bölümler ===== */
section { padding-block: 80px; }
.section-title {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1.7rem;
  margin: 0 0 36px;
}
.section-title .num { font-family: var(--mono); color: var(--accent); font-size: 1.1rem; }
.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
  max-width: 300px;
}

/* Hakkımda */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}
.about-grid p { color: var(--muted); margin-top: 0; }
.facts {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  font-family: var(--mono);
  font-size: 0.9rem;
}
.facts div { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--border); }
.facts div:last-child { border-bottom: 0; }
.facts span:first-child { color: var(--muted); }
.facts span:last-child { text-align: right; }
@media (max-width: 760px) { .about-grid { grid-template-columns: 1fr; } }

/* Projeler */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
@media (max-width: 400px) { .projects { grid-template-columns: 1fr; } }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s, border-color 0.2s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(94, 234, 212, 0.45); }
.card .icon { font-size: 1.6rem; margin-bottom: 10px; }
.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { color: var(--muted); margin: 0 0 16px; font-size: 0.95rem; flex: 1; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.tags li {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: rgba(94, 234, 212, 0.08);
  padding: 3px 9px;
  border-radius: 6px;
}

/* Yetenekler */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}
.skill-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.skill-box h3 { margin: 0 0 14px; font-size: 1rem; color: var(--accent-2); font-family: var(--mono); }

/* Zaman çizelgesi (eğitim & deneyim) */
.timeline { border-left: 2px solid var(--border); padding-left: 26px; margin-left: 6px; }
.t-item { position: relative; margin-bottom: 34px; }
.t-item:last-child { margin-bottom: 0; }
.t-item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}
.t-date { font-family: var(--mono); font-size: 0.85rem; color: var(--accent); }
.t-item h3 { margin: 4px 0 2px; font-size: 1.12rem; }
.t-item .where { color: var(--accent-2); font-size: 0.95rem; }
.t-item p { color: var(--muted); margin: 8px 0 0; }

/* İletişim */
.contact { text-align: center; }
.contact .section-title { justify-content: center; }
.contact .section-title::after { display: none; }
.contact p.lead { color: var(--muted); max-width: 540px; margin: 0 auto 32px; }
.contact-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 20px;
  color: var(--text);
  font-size: 0.95rem;
  word-break: break-all;
}
.contact-item:hover { border-color: var(--accent); text-decoration: none; }

footer {
  border-top: 1px solid var(--border);
  padding-block: 28px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  font-family: var(--mono);
}

/* Kaydırınca beliren öğeler (yalnızca JS çalışırsa gizlenir) */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s, transform 0.6s; }
.js .reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}