/* Güven ERP bağımsız kurulum — giriş ekranı. Uygulama stilinden bağımsızdır; küçük ve hızlı yüklenir. */
:root { color-scheme: light dark; --bg: #eef2f7; --card: #fff; --ink: #0f172a; --muted: #64748b; --line: #cbd5e1; --brand: #1b2f92; --brand-ink: #fff; --err: #b42318; --err-bg: #fef3f2; --ok: #067647; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1220; --card: #141c2e; --ink: #e8edf6; --muted: #94a3b8; --line: #334155; --brand: #5b76f0; --brand-ink: #0b1220; --err: #fda29b; --err-bg: #3a1512; --ok: #75e0a7; }
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; font: 16px/1.5 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--ink); display: flex; align-items: center; justify-content: center; padding: 16px; padding-bottom: calc(16px + env(safe-area-inset-bottom)); }
.gl-card { width: 100%; max-width: 400px; background: var(--card); border-radius: 16px; padding: 28px 24px 24px; box-shadow: 0 12px 32px rgba(15, 23, 42, .10); }
.gl-brand { font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--brand); margin-bottom: 14px; }
h1 { font-size: 22px; line-height: 1.25; margin: 0 0 18px; font-weight: 650; }
.gl-lead { margin: -8px 0 16px; color: var(--muted); font-size: 14px; }
label { display: block; font-size: 14px; font-weight: 550; margin: 14px 0 6px; }
input { width: 100%; font: inherit; color: inherit; background: transparent; border: 1px solid var(--line); border-radius: 10px; padding: 11px 12px; min-height: 46px; }
input:focus-visible, button:focus-visible { outline: 3px solid color-mix(in srgb, var(--brand) 45%, transparent); outline-offset: 1px; border-color: var(--brand); }
button { width: 100%; margin-top: 22px; font: inherit; font-weight: 600; min-height: 48px; border: 0; border-radius: 10px; background: var(--brand); color: var(--brand-ink); cursor: pointer; }
button:disabled { opacity: .6; cursor: progress; }
.gl-note { margin: 16px 0 0; font-size: 13px; color: var(--muted); }
.gl-note a { color: var(--brand); font-weight: 550; display: inline-block; padding: 6px 0; }
[hidden] { display: none !important; }
.gl-msg { margin-top: 14px; font-size: 14px; min-height: 0; }
.gl-msg:empty { display: none; }
.gl-msg.is-error { color: var(--err); background: var(--err-bg); border-radius: 10px; padding: 10px 12px; }
.gl-msg.is-ok { color: var(--ok); }