/* Bütçe Cepte — tanıtım sitesi. Tek stil dosyası; JS yok. */
:root {
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --brand-soft: #dbeafe;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --radius: 14px;
  --max: 960px;
  --prose: 720px;
}

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

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-wrap: break-word;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--brand-dark); text-underline-offset: 2px; }
a:hover { color: var(--brand); }
a:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-radius: 4px; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.prose { max-width: var(--prose); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--brand); color: #fff; padding: 8px 12px; z-index: 10;
}
.skip-link:focus { left: 8px; top: 8px; }

/* ── Header ─────────────────────────────────────────── */
.site-header { border-bottom: 1px solid var(--border); background: var(--bg); }
.site-header .container { display: flex; align-items: center; min-height: 64px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none;
}
.brand img { width: 36px; height: 36px; }

/* ── Hero ───────────────────────────────────────────── */
.hero {
  background: linear-gradient(180deg, var(--brand-soft) 0%, var(--bg) 100%);
  padding: clamp(40px, 8vw, 88px) 0 clamp(32px, 6vw, 64px);
  text-align: center;
}
.hero img { width: clamp(88px, 18vw, 120px); height: auto; margin: 0 auto 20px; }
.hero h1 { font-size: clamp(2rem, 6vw, 3rem); line-height: 1.15; margin: 0 0 12px; }
.hero p { font-size: clamp(1.05rem, 2.6vw, 1.25rem); color: var(--muted); margin: 0 auto; max-width: 560px; }

.badge {
  display: inline-block; margin-top: 28px; padding: 10px 18px;
  border-radius: 999px; background: var(--brand); color: #fff; font-weight: 600;
}

/* ── Özellikler ─────────────────────────────────────── */
.features { padding: 24px 0 64px; }
.features h2 { text-align: center; font-size: 1.5rem; margin: 0 0 24px; }
.grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  list-style: none; margin: 0; padding: 0;
}
.card {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; background: var(--bg);
}
.card h3 { margin: 0 0 6px; font-size: 1.05rem; color: var(--brand-dark); }
.card p { margin: 0; color: var(--muted); }

/* ── Metin sayfaları (yasal) ────────────────────────── */
.page { padding: 40px 0 64px; }
.page h1 { font-size: clamp(1.6rem, 5vw, 2.2rem); line-height: 1.2; margin: 0 0 8px; }
.page h2 { font-size: 1.25rem; margin: 2em 0 0.5em; padding-top: 0.5em; border-top: 1px solid var(--border); }
.page h3 { font-size: 1.05rem; margin: 1.5em 0 0.4em; }
.lead { color: var(--muted); font-size: 1.05rem; }

.note {
  border-left: 4px solid var(--brand); background: var(--bg-alt);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; margin: 1em 0;
}
.note.todo { border-left-color: #d97706; background: #fffbeb; }

.toc { background: var(--bg-alt); border-radius: var(--radius); padding: 12px 20px; }
.toc ol { margin: 0.5em 0; padding-left: 1.2em; }

.table-wrap { overflow-x: auto; margin: 1em 0; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
.table-wrap.wide table { min-width: 560px; } /* 4 sütunlu tablo: dar ekranda yatay kaydırılır */
th, td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: var(--bg-alt); }

address { font-style: normal; }

.updated { color: var(--muted); font-size: 0.9rem; margin-top: 2.5em; }

/* ── 404 ────────────────────────────────────────────── */
.not-found { text-align: center; padding: 72px 0; }
.not-found h1 { font-size: clamp(2.5rem, 10vw, 4rem); margin: 0; color: var(--brand); }
.button {
  display: inline-block; margin-top: 16px; padding: 10px 20px; border-radius: 10px;
  background: var(--brand); color: #fff; text-decoration: none; font-weight: 600;
}
.button:hover { background: var(--brand-dark); color: #fff; }

/* ── Footer ─────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border); background: var(--bg-alt);
  padding: 32px 0; font-size: 0.9rem; color: var(--muted);
}
.footer-nav ul { list-style: none; margin: 0 0 16px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer-nav a { color: var(--text); }
.company { margin: 0 0 12px; }
.company strong { color: var(--text); font-weight: 600; }
.copyright { margin: 0; }