:root {
  --kasa-bg: #eef4f7;
  --kasa-surface: #ffffff;
  --kasa-ink: #101827;
  --kasa-muted: #5d6b7b;
  --kasa-line: #d7e2ea;
  --kasa-blue: #2458d3;
  --kasa-blue-dark: #1d47ad;
  --kasa-teal: #0f766e;
  --kasa-radius: 8px;
  --kasa-shadow: 0 28px 80px rgba(16, 24, 39, .16);
}

body {
  background: var(--kasa-bg);
  color: var(--kasa-ink);
  font-family: Inter, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0;
}

.container {
  width: min(100% - 48px, 1120px);
  height: auto;
  min-height: 660px;
  overflow: hidden;
  border: 1px solid rgba(215, 226, 234, .9);
  border-radius: 14px;
  background: var(--kasa-surface);
  box-shadow: var(--kasa-shadow);
}

.column {
  padding: 36px;
}

.kasa-auth-rail {
  position: relative;
  justify-content: space-between;
  align-items: flex-start;
  overflow: hidden;
  color: #fff;
  background: #0f172a url("/sitestatic/css/kasapost-login-visual.png?v=20260517b") center / cover no-repeat !important;
  text-align: left !important;
}

.kasa-auth-rail::before {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(
    180deg,
    rgba(10, 20, 36, .24) 0%,
    rgba(10, 20, 36, .48) 48%,
    rgba(10, 20, 36, .72) 100%
  );
}

.logo,
.kasa-auth-message {
  position: relative;
  z-index: 1;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-decoration: none;
}

.kasa-login-mark {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 14px 32px rgba(0, 0, 0, .18);
}

.kasa-login-mark::before {
  color: var(--kasa-teal);
  content: "K";
  font-size: 1.2rem;
  font-weight: 900;
}

.kasa-login-brand {
  font-size: 1.1rem;
  font-weight: 850;
}

.kasa-auth-message {
  max-width: 390px;
}

.kasa-auth-message h1 {
  margin: 18px 0 0;
  color: #fff;
  font-size: clamp(2.1rem, 1.45rem + 1.1vw, 2.9rem);
  font-weight: 860;
  line-height: 1.02;
}

.kasa-auth-label {
  display: inline-flex;
  min-height: 31px;
  align-items: center;
  padding: 0 11px;
  border: 1px solid rgba(15, 118, 110, .25);
  border-radius: var(--kasa-radius);
  color: var(--kasa-teal);
  background: #f0fdfa;
  font-size: .75rem;
  font-weight: 850;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.kasa-auth-rail .kasa-auth-label {
  border-color: rgba(255, 255, 255, .22);
  color: #d9fff5;
  background: rgba(255, 255, 255, .10);
}

.kasa-auth-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 28px;
}

.kasa-auth-grid span {
  min-height: 78px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 10px;
  color: rgba(255, 255, 255, .92);
  background: rgba(255, 255, 255, .09);
  font-size: .78rem;
  font-weight: 780;
  line-height: 1.35;
}

.kasa-auth-main {
  background: #fff;
}

.login-box {
  max-width: 450px;
  text-align: left;
}

.login-box h2 {
  margin: 18px 0 0;
  color: var(--kasa-ink);
  font-size: clamp(2.05rem, 1.5rem + .9vw, 2.9rem);
  font-weight: 860;
  line-height: 1.04;
}

.kasa-auth-copy {
  margin: 12px 0 28px;
  color: var(--kasa-muted);
  font-size: 1rem;
  font-weight: 560;
  line-height: 1.55;
}

.input-group {
  margin-bottom: 14px;
}

.input-group label {
  color: #475569;
  font-weight: 740;
}

.input-group input {
  box-sizing: border-box;
  width: 100%;
  min-height: 52px;
  padding: 0 14px;
  border: 1px solid #cbd7e4;
  border-radius: var(--kasa-radius);
  color: #1f2937;
  background: #fff;
  font-size: 1rem;
}

.input-group input:focus {
  border-color: var(--kasa-blue);
  outline: 0;
  box-shadow: 0 0 0 .2rem rgba(36, 88, 211, .16);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 4px 0 18px;
  color: #475569;
  font-weight: 620;
}

.checkbox-group input[type="checkbox"] {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  min-height: 0;
  margin: 0;
  accent-color: var(--kasa-blue);
}

.checkbox-group label {
  margin: 0;
  line-height: 1.2;
}

.btn {
  min-height: 49px;
  border-radius: var(--kasa-radius);
  font-weight: 800;
}

.btn-primary,
.btn-primary:hover {
  background-color: var(--kasa-blue) !important;
}

.btn-primary:hover {
  background-color: var(--kasa-blue-dark) !important;
}

.footer {
  margin-top: 18px;
}

.footer a {
  color: var(--kasa-blue) !important;
  font-weight: 720;
}

.alert-box,
.annoucement {
  border-radius: var(--kasa-radius);
}

@media (max-width: 880px) {
  body {
    align-items: flex-start;
    min-height: 100vh;
    height: auto;
    padding: 16px 0;
  }

  .container {
    width: min(100% - 28px, 440px);
    min-height: 0;
    flex-direction: column;
  }

  .column {
    width: auto;
    padding: 24px;
  }

  .logo {
    gap: 8px;
    padding-right: 8px;
    border-radius: var(--kasa-radius);
    background: rgba(15, 23, 42, .32);
  }

  .kasa-auth-rail {
    min-height: 280px;
    background-position: center top !important;
  }

  .kasa-auth-grid {
    display: none;
  }
}