/* =====================================================================
   Halaman Masuk — tema "Glass Neon" (senada dengan dashboard)
   ===================================================================== */

:root{
  --bg:#0b0e14;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.055);
  --txt:#e8edf7;
  --mut:#93a0b8;
  --pri:#38bdf8;
  --pri-2:#3b82f6;
  --vio:#a78bfa;
  --ok:#34d399;
  --dan:#fb7185;
  --blur:blur(18px) saturate(140%);
}

*{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:"Segoe UI",system-ui,-apple-system,"Inter",sans-serif;
  color:var(--txt);min-height:100vh;
  background:
    radial-gradient(900px 560px at 12% -8%, rgba(56,189,248,.16), transparent 62%),
    radial-gradient(820px 540px at 92% 6%,  rgba(124,92,245,.18), transparent 62%),
    radial-gradient(900px 620px at 50% 110%,rgba(52,211,153,.09), transparent 60%),
    linear-gradient(180deg,#0b0e14 0%, #090c12 55%, #070910 100%);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
/* butiran halus supaya latar tidak terasa polos */
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.35;
  background-image:radial-gradient(rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:3px 3px;
}

/* --- aurora: tiga bola warna yang bergerak sangat pelan --- */
.bg{position:fixed;inset:0;z-index:0;filter:blur(100px);opacity:.5;pointer-events:none}
.bg span{position:absolute;border-radius:50%;display:block}
.bg span:nth-child(1){width:440px;height:440px;background:#38bdf8;top:-110px;left:-90px;animation:f1 18s ease-in-out infinite}
.bg span:nth-child(2){width:380px;height:380px;background:#7c5cf5;bottom:-120px;right:-70px;animation:f2 22s ease-in-out infinite}
.bg span:nth-child(3){width:320px;height:320px;background:#34d399;top:48%;left:56%;animation:f1 26s ease-in-out infinite reverse}
@keyframes f1{50%{transform:translate(90px,60px) scale(1.15)}}
@keyframes f2{50%{transform:translate(-70px,-50px) scale(1.1)}}

.wrap{position:relative;z-index:1;min-height:100vh;display:grid;place-items:center;padding:24px}

.card{
  position:relative;overflow:hidden;
  width:100%;max-width:412px;
  padding:36px 32px 26px;border-radius:22px;
  background:linear-gradient(150deg,rgba(36,44,62,.72),rgba(16,21,32,.78));
  border:1px solid var(--line);
  backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);
  box-shadow:0 30px 70px rgba(0,0,0,.65),
             0 0 44px rgba(124,92,245,.18),
             inset 0 1px 0 rgba(255,255,255,.16);
  animation:pop .45s cubic-bezier(.2,.9,.3,1.3);
}
/* kilau diagonal khas kaca */
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(135deg,rgba(255,255,255,.12) 0%,rgba(255,255,255,.035) 38%,transparent 60%);
}
/* garis neon tipis di sisi atas kartu */
.card::after{
  content:"";position:absolute;left:16%;right:16%;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,transparent,#38bdf8,#a78bfa,transparent);
  box-shadow:0 0 16px rgba(56,189,248,.8);
}
@keyframes pop{from{opacity:0;transform:translateY(18px) scale(.97)}}

.brand{text-align:center;margin-bottom:26px;position:relative}
.logo{
  width:64px;height:64px;margin:0 auto 15px;border-radius:20px;
  display:grid;place-items:center;font-size:30px;
  background:linear-gradient(140deg,rgba(56,189,248,.9),rgba(124,92,245,.9));
  box-shadow:0 12px 30px rgba(56,189,248,.4), inset 0 1px 0 rgba(255,255,255,.4);
}
.brand h1{
  font-size:20px;letter-spacing:-.3px;font-weight:700;
  background:linear-gradient(100deg,#e8edf7,#9fd8ff 55%,#c4b5fd);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand p{color:var(--mut);font-size:12.5px;margin-top:7px;line-height:1.55}

.field{display:block;margin-bottom:16px}
.field>span{display:block;font-size:12px;color:var(--mut);margin-bottom:8px;font-weight:600}

input[type=email],input[type=password],input[type=text]{
  width:100%;padding:12px 14px;border-radius:12px;font-size:14px;
  color:var(--txt);outline:none;font-family:inherit;
  background:linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.025));
  border:1px solid var(--line);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14), 0 4px 14px rgba(0,0,0,.3);
  transition:border-color .2s, box-shadow .2s, background .2s;
}
input::placeholder{color:#6f7d95}
input:hover{border-color:rgba(167,139,250,.35)}
input:focus{
  border-color:rgba(56,189,248,.75);
  background:linear-gradient(150deg,rgba(255,255,255,.12),rgba(255,255,255,.04));
  box-shadow:0 0 0 3px rgba(56,189,248,.18),
             0 0 20px rgba(56,189,248,.34),
             inset 0 1px 0 rgba(255,255,255,.2);
}

.pw{position:relative}
.pw input{padding-right:46px}
#eye{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  background:none;border:0;color:var(--mut);font-size:16px;cursor:pointer;
  padding:7px 9px;border-radius:9px;transition:.15s;
}
#eye:hover{background:rgba(255,255,255,.08);color:var(--txt)}

.remember{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--mut);margin:4px 0 18px;cursor:pointer}
.remember input{
  appearance:none;-webkit-appearance:none;
  width:18px;height:18px;flex:none;cursor:pointer;border-radius:6px;
  background:linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
  display:inline-grid;place-content:center;transition:.2s;
}
.remember input::after{
  content:"";width:10px;height:10px;transform:scale(0);transition:transform .15s ease-in-out;
  clip-path:polygon(14% 44%,0 65%,50% 100%,100% 16%,85% 0,45% 71%);
  background:#fff;
}
.remember input:checked{
  background:linear-gradient(135deg,#38bdf8,#3b82f6);
  border-color:rgba(120,215,255,.7);
  box-shadow:0 0 14px rgba(56,189,248,.6), inset 0 1px 0 rgba(255,255,255,.4);
}
.remember input:checked::after{transform:scale(1)}

/* Tombol utama: pil biru-cyan bercahaya. */
.btn{
  position:relative;isolation:isolate;
  width:100%;padding:13px;border:1px solid rgba(120,215,255,.55);border-radius:999px;
  cursor:pointer;font-size:14.5px;font-weight:700;color:#f2f9ff;font-family:inherit;
  background:linear-gradient(135deg,#4cc4f5 0%,#3b82f6 55%,#5b6ff7 100%);
  box-shadow:0 12px 30px rgba(56,189,248,.35), inset 0 1px 0 rgba(255,255,255,.45);
  text-shadow:0 1px 6px rgba(2,20,40,.45);
  transition:transform .16s ease, box-shadow .2s ease, filter .2s ease;
}
.btn::after{
  content:"";position:absolute;inset:1px 1px 48% 1px;border-radius:999px;z-index:-1;
  background:linear-gradient(180deg,rgba(255,255,255,.40),rgba(255,255,255,0));
}
.btn:hover{
  transform:translateY(-1px);filter:brightness(1.06);
  box-shadow:0 16px 38px rgba(56,189,248,.5), inset 0 1px 0 rgba(255,255,255,.5);
}
.btn:active{transform:translateY(0) scale(.99)}
.btn:disabled{opacity:.6;cursor:wait;transform:none;filter:grayscale(.3)}
.btn:focus-visible{outline:2px solid rgba(56,189,248,.8);outline-offset:3px}

.err{
  background:rgba(251,113,133,.12);border:1px solid rgba(251,113,133,.45);
  color:#ffb3c0;font-size:13px;padding:11px 13px;border-radius:12px;margin-bottom:14px;
  box-shadow:0 0 20px rgba(251,113,133,.22);
  animation:shake .35s;
}
@keyframes shake{25%{transform:translateX(-7px)}75%{transform:translateX(7px)}}
.hidden{display:none}

footer{text-align:center;color:#5c6a80;font-size:11.5px;margin-top:22px;line-height:1.6}

@media(max-width:420px){
  .card{padding:28px 20px 22px;border-radius:18px}
  .logo{width:56px;height:56px;font-size:26px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
}

/* Cadangan bila browser tidak mendukung backdrop-filter. */
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .card{background:#151b28}
}