:root {
  --navy: #061f3d;
  --navy-2: #0a3d7c;
  --steel: #a7a9ac;
  --text: #1c2b3a;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { min-width: 320px; margin: 0; color: var(--text); }
.business-body { min-height: 100vh; background: linear-gradient(135deg, #edf2f7 0%, #fff 52%, #e6edf5 100%); }
.login-layout { position: relative; display: grid; min-height: 100vh; place-items: center; padding: 80px 24px; }
.login-layout::before, .login-layout::after { position: fixed; width: 34vw; height: 34vw; border: 1px solid rgba(10,61,124,.14); content: ""; pointer-events: none; transform: rotate(45deg); }
.login-layout::before { top: -20vw; right: -13vw; }
.login-layout::after { bottom: -24vw; left: -17vw; }
.business-back { position: absolute; top: 25px; left: 28px; color: #496077; font-size: 12px; font-weight: 750; text-decoration: none; }
.business-back:hover { color: var(--navy-2); }
.login-card { position: relative; z-index: 1; width: min(100%, 465px); padding: clamp(32px, 5vw, 54px); border: 1px solid #d9e0e7; background: rgba(255,255,255,.93); box-shadow: 0 28px 80px rgba(5,29,57,.13); }
.login-brand { display: flex; align-items: center; gap: 10px; color: var(--navy); font-size: 13px; font-weight: 900; letter-spacing: .09em; }
.login-brand small { color: #647892; font-size: 9px; letter-spacing: .18em; }
.login-mark { display: grid; width: 32px; height: 32px; place-items: center; background: linear-gradient(135deg, var(--navy-2), var(--navy)); color: #fff; font-size: 17px; font-weight: 900; clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.business-kicker { margin: 47px 0 0; color: var(--navy-2); font-size: 10px; font-weight: 850; letter-spacing: .16em; }
.login-card h1 { margin: 14px 0 0; color: var(--navy); font-size: clamp(32px, 6vw, 44px); line-height: 1.02; letter-spacing: -.055em; }
.login-description { margin: 17px 0 29px; color: #64717e; font-size: 13px; line-height: 1.7; }
#login-form { display: grid; gap: 8px; }
#login-form label { margin-top: 7px; color: #506171; font-size: 11px; font-weight: 800; }
#login-form input { width: 100%; height: 43px; border: 1px solid #cbd5de; padding: 0 11px; background: #fff; color: var(--text); font: inherit; font-size: 13px; outline: none; transition: border-color .15s, box-shadow .15s; }
#login-form input:focus { border-color: var(--navy-2); box-shadow: 0 0 0 3px rgba(10,61,124,.12); }
#login-form button { display: flex; min-height: 45px; align-items: center; justify-content: space-between; margin-top: 14px; border: 1px solid var(--navy); padding: 0 16px; background: var(--navy); color: #fff; font: inherit; font-size: 12px; font-weight: 800; cursor: pointer; transition: .2s; }
#login-form button:hover { border-color: var(--navy-2); background: var(--navy-2); }
.login-error { margin: 5px 0 0; color: #a63737; font-size: 11px; line-height: 1.45; }
.business-copyright { position: absolute; bottom: 23px; left: 28px; margin: 0; color: #778899; font-size: 10px; }

.business-app-body { overflow: hidden; background: #edf2f6; }
.business-app-shell { display: grid; height: 100vh; grid-template-rows: 58px minmax(0,1fr); }
.business-app-header { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 0 22px; background: var(--navy); color: #fff; }
.business-app-brand { color: #fff; font-size: 13px; font-weight: 900; letter-spacing: .1em; text-decoration: none; }
.business-app-brand span { margin-left: 7px; color: #a7c4e0; font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.business-app-actions { display: flex; align-items: center; gap: 14px; }
.business-app-actions a { color: #dce8f4; font-size: 11px; font-weight: 750; text-decoration: none; }
.business-app-actions button { border: 1px solid rgba(255,255,255,.35); padding: 7px 10px; background: transparent; color: #fff; font: inherit; font-size: 11px; font-weight: 750; cursor: pointer; }
.business-app-actions button:hover { background: rgba(255,255,255,.1); }
.module-frame-wrap { position: relative; min-height: 0; background: #fff; }
#teklif-module { width: 100%; height: 100%; border: 0; }
.module-fallback { position: absolute; inset: 0; display: grid; place-content: center; padding: 24px; background: #fff; text-align: center; }
.module-fallback p { color: #556575; font-size: 14px; }
.module-fallback a { color: var(--navy-2); font-size: 13px; font-weight: 800; }

@media (max-width: 600px) {
  .login-layout { padding: 72px 17px; }
  .business-back { top: 19px; left: 18px; }
  .business-copyright { bottom: 17px; left: 18px; }
  .business-app-header { padding: 0 13px; }
  .business-app-actions { gap: 9px; }
  .business-app-actions a { display: none; }
}