/* ========= Root & Reset ========= */
:root{
  --brand:#0b8f77;         /* BSI-ish primary */
  --brand-2:#48a39e;       /* accent */
  --bg:#0a0f0e;            /* deep dark */
  --card:#ffffff;          /* card base */
  --muted:#6b7a75;
  --danger:#d54545;

  --radius-xl: 22px;
  --radius: 14px;
  --shadow-1: 0 10px 30px rgba(0,0,0,.15);
  --shadow-2: 0 25px 80px rgba(11,143,119,.25);

  --input-h: 52px;
  --gap: 16px;
}

*{ box-sizing: border-box; }
html, body{ height:100%; }
html{ font-size:16px; }
body{
  margin:0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:#10221b;
  background: radial-gradient(1200px 800px at 100% -10%, #0b8f7714 0%, transparent 60%),
              radial-gradient(1200px 800px at -20% 120%, #48a39e21 0%, transparent 65%),
              #f4f9f7;
}

/* ========= Layout Shell ========= */
.page{
  position:relative;
  min-height:100svh;
  display:grid;
  place-items:center;
  overflow:hidden;
}

/* Animated background blobs */
.bg{
  position:absolute; inset:auto;
  filter: blur(50px);
  opacity:.55;
  z-index:0;
  pointer-events:none;
  animation: float 18s ease-in-out infinite;
}
.bg-1{ width:480px; height:480px; background:#0b8f77; top:-120px; right:-120px; }
.bg-2{ width:520px; height:520px; background:#48a39e; bottom:-160px; left:-140px; animation-delay: -5s; }
.bg-3{ width:360px; height:360px; background:#0b8f77; bottom:10%; right:12%; animation-delay: -9s; }

@keyframes float{
  0%,100%{ transform: translate3d(0,0,0) scale(1); }
  50%{ transform: translate3d(0,-12px,0) scale(1.03); }
}

/* ========= Two-column login shell ========= */
.login-shell{
  position:relative;
  z-index:2;
  width:min(100%, 1080px);
  display:grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 28px;
  padding: 28px;
}

.brand-col{
  background: linear-gradient(160deg, #ffffffbb 0%, #ffffff90 100%);
  backdrop-filter: blur(10px);
  border: 1px solid #ffffffc9;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-1);
  padding: clamp(20px, 4vw, 36px);
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-start;
  min-height: 420px;
}
.brand-mark{
  width:72px; height:72px; object-fit:contain;
  border-radius:16px;
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
  margin-bottom: 14px;
}
.brand-title{
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  margin: 0 0 4px;
  color: #0e3b31;
  letter-spacing:.2px;
}
.brand-tagline{
  margin:0; color:#3a4c46; font-weight:500;
}

/* ========= Card (form) ========= */
.card{
  background: linear-gradient(180deg, #fff, #fbfffd);
  border: 1px solid #e7efec;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2);
  padding: clamp(22px, 3vw, 34px);
  display:flex;
  flex-direction:column;
  gap: 18px;
}
.card-header h2{
  margin:0;
  font-weight:700;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color:#0f2d25;
}
.card-header .subtitle{
  margin:.25rem 0 0;
  color:#60706b;
  font-size:.95rem;
}

.card-footer{
  margin-top: 4px;
  color:#788681;
  text-align:center;
}

/* ========= Form ========= */
form{ display:flex; flex-direction:column; gap: var(--gap); }

.input-group{
  position:relative;
  height: var(--input-h);
  display:flex; align-items:center;
  background:#fff;
  border:1px solid #e3eeeb;
  border-radius: 12px;
  transition: box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
.input-group:focus-within{
  border-color: #b8e0d9;
  box-shadow: 0 0 0 4px #0b8f7726;
}
.input-group .icon{
  position:absolute; left:12px; top:50%; transform:translateY(-50%);
  color:#6b7a75;
  font-size: 1.05rem;
}
.input-group input{
  width:100%;
  height:100%;
  border:0; outline:0;
  padding: 0 46px 0 42px;
  font-size:1rem;
  background:transparent;
  color:#0d2a22;
}
.input-group input::placeholder{ color:#9aa8a3; }

.toggle-pass{
  position:absolute; right:8px; top:50%; transform:translateY(-50%);
  border:0; background:transparent; cursor:pointer;
  color:#6b7a75; padding:6px 8px; border-radius:8px;
}
.toggle-pass:hover{ color:#0b8f77; background:#0b8f7712; }

.options{
  display:flex; align-items:center; justify-content:space-between;
  margin-top: -4px;
}
.remember{
  display:flex; align-items:center; gap:8px; color:#485853;
  font-size:.95rem;
}
.remember input{ width:16px; height:16px; }
.forgot{
  color:#0b8f77; text-decoration:none; font-weight:600;
}
.forgot:hover{ text-decoration:underline; }

/* Button */
.btn-login{
  appearance:none;
  display:inline-flex; align-items:center; justify-content:center; gap:.6rem;
  height: 50px; padding: 0 18px;
  font-weight:700; letter-spacing:.3px;
  color:#fff; background: linear-gradient(135deg, #0b8f77, #48a39e);
  border:none; border-radius: 12px;
  box-shadow: 0 10px 24px rgba(11,143,119,.25);
  cursor:pointer;
  transition: transform .08s ease, box-shadow .2s ease, filter .2s ease;
}
.btn-login:hover{ filter:saturate(1.05) brightness(1.03); }
.btn-login:active{ transform: translateY(1px); box-shadow: 0 6px 16px rgba(11,143,119,.25); }

/* Error message */
#error-msg{
  margin: 6px 2px 0;
  min-height: 1.25rem;
  color: var(--danger);
  font-weight:600;
}

/* ========= Responsive ========= */
@media (max-width: 1024px){
  .login-shell{ grid-template-columns: 1fr; }
  .brand-col{ order: -1; text-align:center; align-items:center; }
  .brand-title{ text-align:center; }
  .brand-tagline{ text-align:center; }
}
@media (max-width: 520px){
  .login-shell{ padding: 18px; }
  .card, .brand-col{ border-radius: 16px; }
  .options{ flex-direction: column; align-items:flex-start; gap:10px; }
}

/* NoScript */
.noscript{
  position: fixed; inset: 0; background: #0009; color:#fff;
  display:flex; align-items:center; justify-content:center;
  padding: 20px; text-align:center; z-index: 9999;
}