/* ===== Konversi Nilai Login — Premium Space Theme ===== */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

body{
  min-height:100vh;
  overflow-x:hidden;
  background:#060d1a;
  color:#e0e8f0;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* --- Animated Background Elements (Matches lab.iainsasbabel.ac.id exactly) --- */
.ilk-bg-wrapper {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
  background: #010812;
}

.ilk-bg-wrapper canvas#ilk-rain {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  z-index: 0;
}

.ilk-bg-wrapper .ilk-vignette {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(ellipse 85% 85% at 50% 50%, transparent 20%, rgba(1,8,20,.65) 65%, rgba(1,6,18,.94) 100%),
    linear-gradient(180deg, rgba(1,6,18,.6) 0%, transparent 15%, transparent 85%, rgba(1,6,18,.75) 100%);
}

.ilk-bg-wrapper .ilk-geo {
  position: absolute; inset: 0; z-index: 2; pointer-events: none; opacity: .025;
  background-image:
    repeating-linear-gradient(45deg, rgba(59,130,246,.7) 0, rgba(59,130,246,.7) 1px, transparent 0, transparent 50%),
    repeating-linear-gradient(-45deg, rgba(59,130,246,.7) 0, rgba(59,130,246,.7) 1px, transparent 0, transparent 50%);
  background-size: 28px 28px;
}

.ilk-bg-wrapper .ilk-scanline {
  position: absolute; left: 0; right: 0; height: 2px; z-index: 3; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(26,100,255,.2), rgba(30,140,255,.4), rgba(26,100,255,.2), transparent);
  animation: ilkScan 7s linear infinite;
}

@keyframes ilkScan {
  0%   { top: -2px; opacity: 0; }
  4%   { opacity: 1; }
  96%  { opacity: .5; }
  100% { top: 100%; opacity: 0; }
}

.ilk-bg-wrapper .ilk-bracket {
  position: absolute; width: 36px; height: 36px; z-index: 5; pointer-events: none;
  animation: ilkFadeIn .5s ease 1.4s both;
}
.ilk-bg-wrapper .ilk-bracket::before,
.ilk-bg-wrapper .ilk-bracket::after {
  content: ''; position: absolute; background: rgba(96,165,250,.55);
}
.ilk-bg-wrapper .ilk-bracket::before { width: 100%; height: 1.5px; top: 0; left: 0; }
.ilk-bg-wrapper .ilk-bracket::after  { width: 1.5px; height: 100%; top: 0; left: 0; }
.ilk-bg-wrapper .ilk-br-tl { top: 14px; left: 14px; }
.ilk-bg-wrapper .ilk-br-tr { top: 14px; right: 14px; transform: scaleX(-1); }
.ilk-bg-wrapper .ilk-br-bl { bottom: 40px; left: 14px; transform: scaleY(-1); }
.ilk-bg-wrapper .ilk-br-br { bottom: 40px; right: 14px; transform: scale(-1); }

@keyframes ilkFadeIn { from { opacity: 0; } to { opacity: 1; } }

/* --- Login Container --- */
.login-container{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:24px;
  width:100%;
  max-width:460px;
  min-height:100vh;
  justify-content:center;
}

/* --- Back Link --- */
.back-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:rgba(160,240,190,.7);
  text-decoration:none;
  font-size:.82rem;
  font-weight:500;
  letter-spacing:.02em;
  margin-bottom:24px;
  align-self:flex-start;
  transition:color .25s, transform .25s;
}
.back-link:hover{
  color:#4ad980;
  transform:translateX(-4px);
}

/* --- Login Card --- */
.login-card{
  width:100%;
  background:rgba(12,24,20,.55);
  border:1px solid rgba(74,217,128,.12);
  border-radius:24px;
  padding:40px 36px 32px;
  backdrop-filter:blur(40px) saturate(1.3);
  -webkit-backdrop-filter:blur(40px) saturate(1.3);
  box-shadow:
    0 4px 60px rgba(0,0,0,.45),
    0 0 0 1px rgba(74,217,128,.06) inset,
    0 1px 0 rgba(255,255,255,.04) inset;
  opacity:0;
  transform:translateY(24px) scale(.97);
  animation:cardIn .7s cubic-bezier(.22,1,.36,1) .15s forwards;
}

@keyframes cardIn{
  to{opacity:1;transform:translateY(0) scale(1)}
}

/* --- Card Header --- */
.card-header{
  text-align:center;
  margin-bottom:28px;
}

.logo-ring{
  width:72px;height:72px;
  margin:0 auto 18px;
  border-radius:50%;
  background:linear-gradient(145deg,rgba(42,138,92,.3),rgba(14,92,61,.2));
  border:2px solid rgba(74,217,128,.25);
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  animation:ringPulse 3s ease-in-out infinite;
}
.logo-ring::before{
  content:'';
  position:absolute;
  inset:-6px;
  border-radius:50%;
  border:1px solid rgba(74,217,128,.08);
  animation:ringPulse 3s ease-in-out infinite .5s;
}

@keyframes ringPulse{
  0%,100%{box-shadow:0 0 20px rgba(74,217,128,.15)}
  50%{box-shadow:0 0 35px rgba(74,217,128,.25)}
}

.logo-img{
  width:44px;
  height:44px;
  object-fit:contain;
  border-radius:50%;
  filter:drop-shadow(0 0 8px rgba(74,217,128,.3));
}

.brand-eyebrow{
  display:block;
  font-size:.7rem;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(74,217,128,.7);
  margin-bottom:4px;
}
.brand-title{
  font-size:1.5rem;
  font-weight:700;
  letter-spacing:-.01em;
  color:#fff;
  margin-bottom:4px;
}
.brand-sub{
  font-size:.78rem;
  color:rgba(200,220,210,.5);
  font-weight:400;
}

/* --- Divider --- */
.divider{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:26px;
}
.divider::before,.divider::after{
  content:'';flex:1;height:1px;
  background:linear-gradient(90deg,transparent,rgba(74,217,128,.2),transparent);
}
.divider-text{
  font-size:.72rem;
  font-weight:500;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:rgba(160,240,190,.45);
  white-space:nowrap;
}

/* --- Input Groups --- */
.input-group{
  margin-bottom:18px;
}
.input-label{
  display:block;
  font-size:.76rem;
  font-weight:600;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:rgba(160,240,190,.55);
  margin-bottom:8px;
}
.input-wrap{
  position:relative;
  display:flex;
  align-items:center;
  background:rgba(10,30,22,.6);
  border:1px solid rgba(74,217,128,.12);
  border-radius:14px;
  transition:border-color .3s, box-shadow .3s, background .3s;
}
.input-wrap:focus-within{
  border-color:rgba(74,217,128,.4);
  box-shadow:0 0 0 3px rgba(74,217,128,.08), 0 0 20px rgba(74,217,128,.06);
  background:rgba(10,30,22,.8);
}
.input-icon{
  position:absolute;
  left:14px;
  color:rgba(74,217,128,.4);
  flex-shrink:0;
  pointer-events:none;
  transition:color .3s;
}
.input-wrap:focus-within .input-icon{
  color:rgba(74,217,128,.7);
}
.input-wrap input{
  flex:1;
  background:none;
  border:none;
  outline:none;
  color:#e0f0e8;
  font-family:inherit;
  font-size:.92rem;
  font-weight:400;
  padding:14px 14px 14px 44px;
  width:100%;
}
.input-wrap input::placeholder{
  color:rgba(160,200,180,.3);
}

/* --- Password Toggle --- */
.toggle-pw{
  background:none;border:none;cursor:pointer;
  padding:10px 14px 10px 6px;
  color:rgba(74,217,128,.35);
  transition:color .25s;
  display:flex;
  align-items:center;
}
.toggle-pw:hover{
  color:rgba(74,217,128,.7);
}

/* --- Buttons --- */
.btn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  width:100%;
  padding:15px 20px;
  border:none;
  border-radius:14px;
  font-family:inherit;
  font-size:.82rem;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  cursor:pointer;
  transition:transform .2s, box-shadow .3s, background .3s, opacity .3s;
  position:relative;
  overflow:hidden;
}
.btn::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.08) 0%,transparent 60%);
  pointer-events:none;
}
.btn:active{
  transform:scale(.97);
}

/* Primary button — gradient green */
.btn-primary{
  background:linear-gradient(135deg,#1a8a50,#2ecc71,#1a8a50);
  background-size:200% 200%;
  color:#fff;
  margin-bottom:12px;
  box-shadow:0 4px 24px rgba(46,204,113,.25), 0 0 0 1px rgba(46,204,113,.15) inset;
  animation:gradShift 4s ease-in-out infinite;
}
.btn-primary:hover{
  box-shadow:0 6px 32px rgba(46,204,113,.35), 0 0 0 1px rgba(46,204,113,.25) inset;
  transform:translateY(-1px);
}

@keyframes gradShift{
  0%,100%{background-position:0% 50%}
  50%{background-position:100% 50%}
}

/* SSO button — outlined with orange accent */
.btn-sso{
  background:rgba(230,126,34,.12);
  color:#e6a23c;
  border:1px solid rgba(230,126,34,.25);
  box-shadow:0 4px 24px rgba(230,126,34,.08);
}
.btn-sso:hover{
  background:rgba(230,126,34,.2);
  border-color:rgba(230,126,34,.4);
  box-shadow:0 6px 28px rgba(230,126,34,.15);
  transform:translateY(-1px);
}

/* --- Card Footer --- */
.card-footer{
  text-align:center;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid rgba(74,217,128,.08);
  font-size:.8rem;
  color:rgba(200,220,210,.4);
}
.card-footer a{
  color:rgba(74,217,128,.7);
  text-decoration:none;
  font-weight:600;
  margin-left:4px;
  transition:color .25s;
}
.card-footer a:hover{
  color:#4ad980;
}

/* --- Copyright --- */
.copyright{
  margin-top:28px;
  font-size:.7rem;
  color:rgba(200,220,210,.25);
  letter-spacing:.03em;
}

/* --- Shake Animation (Error) --- */
@keyframes shake{
  0%,100%{transform:translateX(0)}
  20%{transform:translateX(-8px)}
  40%{transform:translateX(8px)}
  60%{transform:translateX(-5px)}
  80%{transform:translateX(5px)}
}
.input-group.error .input-wrap{
  border-color:rgba(231,76,60,.6);
  box-shadow:0 0 0 3px rgba(231,76,60,.1);
  animation:shake .4s ease;
}
.input-group.error .input-icon{
  color:rgba(231,76,60,.7);
}

/* --- Loading State --- */
.btn.loading{
  pointer-events:none;
  opacity:.7;
}
.btn.loading span{
  visibility:hidden;
}
.btn.loading::before{
  content:'';
  position:absolute;
  width:20px;height:20px;
  border:2px solid rgba(255,255,255,.3);
  border-top-color:#fff;
  border-radius:50%;
  animation:spin .6s linear infinite;
}
@keyframes spin{
  to{transform:rotate(360deg)}
}

/* --- Responsive --- */
@media(max-width:520px){
  .login-container{padding:16px;max-width:100%}
  .login-card{
    padding:28px 20px 24px;
    border-radius:18px;
  }
  .brand-title{font-size:1.3rem}
  .btn{padding:14px 16px;font-size:.8rem}
  .logo-ring{width:60px;height:60px;margin-bottom:14px}
  .input-wrap input{font-size:16px} /* Mencegah auto-zoom di Android / iOS */
}

@media(max-width:380px){
  .login-container{padding:12px}
  .login-card{padding:22px 14px 20px;border-radius:14px}
  .brand-title{font-size:1.2rem}
  .input-wrap input{padding:12px 12px 12px 38px;font-size:16px}
  .input-icon{left:10px}
}