:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #f3f5f8;
  --border: #e3e7ed;
  --text: #111827;
  --muted: #5b6574;
  --accent: #15803d;
  --accent-ink: #ffffff;
  --danger: #dc2626;
  --radius: 12px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 Inter, system-ui, -apple-system, sans-serif;
}
a { color: inherit; }
.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
.muted { color: var(--muted); }
.accent { color: var(--accent); }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 16px; }

/* Üst bar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; gap: 24px; height: 60px; }
.brand { text-decoration: none; font-weight: 500; }
.nav { display: flex; gap: 20px; margin-left: auto; }
.nav a { text-decoration: none; color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--text); }

/* Butonlar */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 9px 16px; border-radius: 8px; border: 1px solid var(--border);
  font: 500 14px Inter, sans-serif; cursor: pointer; text-decoration: none;
  background: transparent; color: var(--text); transition: .15s;
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-danger { color: var(--danger); }
.btn-sm { padding: 5px 10px; font-size: 13px; }

/* Hero */
.hero { padding: 80px 16px 56px; display: flex; align-items: center; gap: 48px; }
.hero-text { min-width: 0; }
.avatar {
  flex: none; width: 220px; height: 220px; border-radius: 50%;
  object-fit: cover; object-position: center;
  border: 4px solid var(--surface); box-shadow: 0 0 0 1px var(--border), 0 12px 32px rgb(17 24 39 / .12);
}
.name {
  margin: 0; font-size: clamp(38px, 8vw, 76px); font-weight: 800;
  letter-spacing: -0.02em; line-height: 1.05; overflow-wrap: anywhere;
}
.title { font-size: clamp(17px, 2.5vw, 21px); color: var(--muted); margin: 16px 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* Bölümler */
.section { padding: 48px 16px; }
.section-title { font-size: 24px; margin: 0 0 24px; display: flex; gap: 10px; align-items: baseline; }
.about { max-width: 680px; font-size: 17px; white-space: pre-line; margin: 0; }

.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.skill-card {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.skill-card h3 { margin: 0 0 14px; font-size: 15px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font: 13px "JetBrains Mono", monospace; padding: 4px 10px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border);
}

.timeline { display: grid; gap: 16px; }
.t-item {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--accent); border-radius: var(--radius); padding: 18px 20px;
}
.t-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; }
.t-item h3 { margin: 0; font-size: 17px; }
.t-sub { color: var(--muted); margin: 2px 0 0; }
.t-date { font: 13px "JetBrains Mono", monospace; color: var(--muted); }
.t-desc { margin: 10px 0 0; white-space: pre-line; }

.contact .email { display: inline-block; font-size: clamp(18px, 3.5vw, 26px); color: var(--accent); margin: 8px 0 16px; word-break: break-all; }
.contact-links { display: flex; gap: 20px; }
.contact-links a { color: var(--muted); }
.contact-links a:hover { color: var(--text); }

.footer { padding: 48px 16px; font-size: 13px; border-top: 1px solid var(--border); margin-top: 32px; }

/* Giriş penceresi */
.dialog {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); color: var(--text); padding: 24px; width: min(380px, calc(100vw - 32px));
}
.dialog::backdrop { background: rgb(17 24 39 / .4); }
.dialog h3 { margin: 0 0 16px; }
label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
input, textarea {
  width: 100%; padding: 9px 11px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font: 14px Inter, sans-serif;
}
textarea { resize: vertical; min-height: 80px; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.error { color: var(--danger); font-size: 13px; min-height: 18px; margin: 8px 0; }
.row-end { display: flex; justify-content: flex-end; gap: 8px; }

/* Düzenleme paneli */
.editor {
  position: fixed; inset: 0 0 0 auto; width: min(520px, 100vw); z-index: 20;
  background: var(--surface); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; box-shadow: -12px 0 40px rgb(17 24 39 / .15);
}
.editor[hidden] { display: none; }
.editor-head, .editor-foot {
  display: flex; align-items: center; gap: 8px; padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.editor-head h3 { margin: 0; margin-right: auto; }
.editor-foot { border-bottom: 0; border-top: 1px solid var(--border); }
.editor-foot #saveStatus { margin-right: auto; font-size: 13px; }
.editor-body { overflow-y: auto; padding: 18px; display: grid; align-content: start; gap: 22px; flex: 1; }
.ed-group { display: grid; gap: 12px; }
.ed-group > h4 { margin: 0; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); }
.ed-item { border: 1px solid var(--border); border-radius: 10px; padding: 12px; display: grid; gap: 10px; background: var(--bg); }

@media (max-width: 640px) {
  .nav { display: none; }
  .topbar-inner { justify-content: space-between; }
  .hero { padding-top: 48px; flex-direction: column; align-items: flex-start; gap: 28px; }
  .avatar { width: 150px; height: 150px; }
  input, textarea { font-size: 16px; } /* iOS'ta odaklanınca yakınlaştırmayı önler */
}