:root {
  --green-900:#0d2e1f; --green-800:#14442e; --green-700:#1a5c3a;
  --green-600:#206e46; --green-500:#2a8c5a; --green-400:#3daa72;
  --green-100:#e6f4ec; --green-50:#f0faf5;
  --gold:#f5a623;
  --white:#ffffff; --gray-200:#e8ece9; --gray-500:#6b8577; --gray-700:#2e4a38;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#071a0f 0%,#0d2e1f 30%,#14442e 65%,#0a3020 100%);
  position:relative;overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
body::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;pointer-events:none;
}
body::after{
  content:'';position:fixed;top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,140,90,.18),transparent 70%);
  pointer-events:none;
}

.auth-card{
  background:var(--white);border-radius:28px;padding:var(--sp-8) var(--sp-8);
  width:100%;max-width:440px;position:relative;z-index:2;
  box-shadow:0 30px 80px rgba(0,0,0,.4),0 0 0 1px rgba(255,255,255,.06);
  animation:cardIn .5s ease both;margin:var(--sp-6) var(--sp-4);
}
@keyframes cardIn{from{opacity:0;transform:translateY(24px) scale(.98)}to{opacity:1;transform:none}}

[hidden]{display:none!important}
.auth-logo{display:block;text-align:center;margin-bottom:var(--sp-6)}
.auth-logo img{height:34px;margin:0 auto}
.auth-logo-text{font-family:var(--font-display);font-size:var(--fs-3xl);font-weight:700;color:var(--green-800);letter-spacing:var(--ls-tight)}
.auth-logo-text span{color:var(--gold)}

.auth-tabs{display:flex;position:relative;background:var(--green-50);border-radius:14px;padding:var(--sp-1);margin-bottom:var(--sp-6);gap:var(--sp-1)}
.auth-tabs::before{
  content:'';position:absolute;top:4px;left:4px;width:calc(50% - 6px);height:calc(100% - 8px);
  border-radius:10px;background:var(--white);box-shadow:0 2px 10px rgba(15,45,31,.12);
  transition:transform .45s cubic-bezier(.22,1,.36,1);
}
.auth-tabs[data-active="register"]::before{transform:translateX(calc(100% + 4px))}
.auth-tab{
  flex:1;padding:var(--sp-2);border:none;border-radius:10px;position:relative;z-index:1;
  font-family:var(--font-display);font-size:var(--fs-md);font-weight:600;
  cursor:pointer;transition:color .25s;
  background:transparent;color:var(--gray-500);
}
.auth-tab:hover{color:var(--green-700)}
.auth-tab.active{color:var(--green-800)}

.auth-subtitle{text-align:center;font-size:var(--fs-md);color:var(--gray-500);margin-bottom:var(--sp-4);line-height:var(--lh-normal)}

.auth-msg{padding:var(--sp-2) var(--sp-4);border-radius:10px;font-size:var(--fs-sm);font-weight:500;margin-bottom:var(--sp-4);display:none}
.auth-msg.error{background:#fff5f5;color:#c53030;border:1px solid #fed7d7;display:block}
.auth-msg.success{background:var(--green-50);color:var(--green-700);border:1px solid var(--green-100);display:block}

.form-group{margin-bottom:var(--sp-3)}
.form-group label{display:block;font-size:var(--fs-sm);font-weight:500;color:var(--gray-700);margin-bottom:var(--sp-1)}
.form-group input{
  width:100%;padding:var(--sp-3) var(--sp-4);
  border:1.5px solid var(--gray-200);border-radius:12px;
  font-family:var(--font-body);font-size:var(--fs-md);color:var(--gray-700);
  transition:border-color .2s,box-shadow .2s;background:var(--white);outline:none;
}
.form-group input:hover{border-color:#cfdcd4}
.form-group input:focus{border-color:var(--green-400);box-shadow:0 0 0 4px rgba(42,140,90,.12)}
.form-group input::placeholder{color:#aabcb3}

.input-wrap{position:relative}
.input-wrap input{padding-right:var(--sp-10)}
.toggle-pw{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  background:none;border:none;cursor:pointer;color:var(--gray-500);
  padding:2px;display:flex;align-items:center;
}
.toggle-pw:hover{color:var(--green-600)}

.forgot-link{text-align:right;margin-top:-8px;margin-bottom:var(--sp-4)}
.forgot-link a{font-size:var(--fs-sm);color:var(--green-600);font-weight:500}
.forgot-link a:hover{color:var(--green-800);text-decoration:underline}

.btn-submit{
  width:100%;padding:var(--sp-4);position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--green-600),var(--green-800));color:var(--white);
  font-family:var(--font-display);font-size:var(--fs-base);font-weight:600;
  border:none;border-radius:14px;cursor:pointer;
  transition:transform .25s cubic-bezier(.22,1,.36,1),box-shadow .25s;
  box-shadow:0 8px 22px rgba(20,68,46,.3),inset 0 1px 0 rgba(255,255,255,.15);
  display:flex;align-items:center;justify-content:center;gap:var(--sp-2);margin-bottom:var(--sp-4);
}
.btn-submit::after{
  content:'';position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.22),transparent);
  transform:skewX(-20deg);transition:left .6s ease;
}
.btn-submit svg{transition:transform .25s cubic-bezier(.22,1,.36,1)}
.btn-submit:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 30px rgba(20,68,46,.4),inset 0 1px 0 rgba(255,255,255,.15)}
.btn-submit:hover:not(:disabled)::after{left:120%}
.btn-submit:hover:not(:disabled) svg{transform:translateX(4px)}
.btn-submit:active:not(:disabled){transform:translateY(0) scale(.99)}
.btn-submit:disabled{opacity:.75;cursor:not-allowed;transform:none}

.divider{display:flex;align-items:center;gap:var(--sp-3);margin-bottom:var(--sp-4)}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--gray-200)}
.divider span{font-size:var(--fs-xs);color:var(--gray-500);font-weight:500;white-space:nowrap}

.btn-google{
  width:100%;padding:var(--sp-3);background:var(--white);color:var(--gray-700);
  font-family:var(--font-body);font-size:var(--fs-md);font-weight:500;
  border:1.5px solid var(--gray-200);border-radius:12px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:var(--sp-2);
  transition:border-color .2s,box-shadow .2s,background .2s,transform .2s;
}
.btn-google:hover{border-color:var(--green-400);box-shadow:0 4px 14px rgba(0,0,0,.08);background:var(--green-50);transform:translateY(-1px)}

.auth-footer-note{text-align:center;font-size:var(--fs-sm);color:var(--gray-500);margin-top:var(--sp-4)}
.auth-footer-note a{color:var(--green-600);font-weight:500}
.auth-footer-note a:hover{text-decoration:underline}

.forgot-panel{display:none}
.back-link{
  display:inline-flex;align-items:center;gap:var(--sp-2);
  font-size:var(--fs-sm);color:var(--green-600);font-weight:500;
  cursor:pointer;margin-bottom:var(--sp-4);background:none;border:none;font-family:var(--font-body);
}
.back-link:hover{color:var(--green-800)}

/* Validasi & isian tambahan */
.form-group input.is-invalid{border-color:#e53e3e}
.form-group input.is-invalid:focus{box-shadow:0 0 0 3px rgba(229,62,62,.12)}
.field-error{display:block;font-size:var(--fs-xs);color:#c53030;margin-top:var(--sp-1);line-height:var(--lh-normal)}
.field-hint{display:block;font-size:var(--fs-xs);color:var(--gray-500);margin-top:var(--sp-1)}
.input-prefix{display:flex;align-items:stretch;border:1.5px solid var(--gray-200);border-radius:10px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.input-prefix:focus-within{border-color:var(--green-400);box-shadow:0 0 0 3px rgba(42,140,90,.1)}
.input-prefix.is-invalid{border-color:#e53e3e}
.input-prefix span{display:flex;align-items:center;padding:0 var(--sp-3);background:var(--green-50);color:var(--gray-700);font-size:var(--fs-md);font-weight:500;border-right:1.5px solid var(--gray-200)}
.form-group .input-prefix input{border:none;border-radius:0;box-shadow:none}
.check-row{display:flex;align-items:flex-start;gap:var(--sp-2);font-size:var(--fs-sm);color:var(--gray-700);line-height:var(--lh-normal);margin-bottom:var(--sp-2);cursor:pointer}
.check-row input{width:17px;height:17px;margin-top:1px;flex-shrink:0;accent-color:var(--green-600);cursor:pointer}
.check-row a{color:var(--green-600);font-weight:500;text-decoration:underline;text-underline-offset:2px}
.check-group{margin:var(--sp-1) 0 var(--sp-4)}
.check-group .field-error{margin:-4px 0 var(--sp-2) var(--sp-6)}
.remember-row{display:flex;align-items:center;justify-content:space-between;margin:-2px 0 var(--sp-4)}
.remember-row .check-row{margin:0}
.remember-row .forgot-link{margin:0}

/* Halaman status (cek email, reset password) */
.auth-icon{width:64px;height:64px;border-radius:50%;margin:0 auto var(--sp-4);display:flex;align-items:center;justify-content:center;background:var(--green-50);color:var(--green-600)}
.auth-title{font-family:var(--font-display);font-size:var(--fs-2xl);font-weight:700;color:var(--green-900);text-align:center;margin-bottom:var(--sp-2)}
.auth-email{display:inline-block;font-weight:600;color:var(--green-800);word-break:break-all}
.auth-steps{list-style:none;background:var(--green-50);border-radius:12px;padding:var(--sp-4) var(--sp-4);margin:0 0 var(--sp-4);display:flex;flex-direction:column;gap:var(--sp-2)}
.auth-steps li{display:flex;gap:var(--sp-2);font-size:var(--fs-sm);color:var(--gray-700);line-height:var(--lh-normal)}
.auth-steps b{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:var(--green-600);color:#fff;font-size:var(--fs-2xs);display:flex;align-items:center;justify-content:center}
.btn-link{background:none;border:none;font-family:var(--font-body);font-size:var(--fs-sm);color:var(--green-600);font-weight:500;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.btn-link:hover{color:var(--green-800)}

.btn-spinner{width:18px;height:18px;border:2.5px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
/* ─── Sign in: layout dua kolom ─────────────────────── */
.auth-spotlight{
  position:fixed;inset:0;pointer-events:none;z-index:1;
  background:radial-gradient(420px circle at var(--mx,70%) var(--my,30%),rgba(245,166,35,.1),transparent 70%);
}
.auth-shell{
  position:relative;z-index:2;width:100%;max-width:1080px;margin:var(--sp-6);
  display:grid;grid-template-columns:1fr 440px;gap:var(--sp-16);align-items:center;
}
.auth-shell .auth-card{margin:0;justify-self:end}
.auth-shell .auth-card .auth-logo{display:none}

.auth-showcase{color:#fff;display:flex;flex-direction:column;gap:var(--sp-10);animation:showcaseIn .7s cubic-bezier(.22,1,.36,1) both}
@keyframes showcaseIn{from{opacity:0;transform:translateX(-24px)}to{opacity:1;transform:none}}
.showcase-back{display:inline-flex;align-items:center;gap:var(--sp-2);align-self:flex-start;font-size:var(--fs-sm);font-weight:500;color:rgba(255,255,255,.65);padding:var(--sp-2) var(--sp-4) var(--sp-2) var(--sp-2);border-radius:100px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);transition:color .2s,background .2s,border-color .2s}
.showcase-back:hover{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24)}
.showcase-back svg{transition:transform .25s}
.showcase-back:hover svg{transform:translateX(-3px)}
.showcase-logo{height:32px;margin-bottom:var(--sp-6)}
.showcase-title{font-family:var(--font-display);font-size:var(--fs-h1);font-weight:700;line-height:var(--lh-tight);letter-spacing:var(--ls-tight);margin-bottom:var(--sp-4)}
.showcase-rotator{display:inline-block;color:var(--gold);position:relative;transition:opacity .3s,transform .3s}
.showcase-rotator::after{content:'';position:absolute;left:0;right:0;bottom:-2px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--gold),rgba(245,166,35,0))}
.showcase-rotator.is-leaving{opacity:0;transform:translateY(-10px)}
.showcase-rotator.is-entering{opacity:0;transform:translateY(10px);transition:none}
.showcase-desc{font-size:var(--fs-base);line-height:var(--lh-relaxed);color:rgba(255,255,255,.66);max-width:420px;margin-bottom:var(--sp-6)}

.showcase-points{list-style:none;display:flex;flex-direction:column;gap:var(--sp-2);max-width:420px}
.showcase-points li{display:flex;align-items:center;gap:var(--sp-4);padding:var(--sp-3) var(--sp-4);border-radius:16px;border:1px solid transparent;transition:background .25s,border-color .25s,transform .25s}
.showcase-points li:hover{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.1);transform:translateX(4px)}
.point-icon{width:40px;height:40px;flex-shrink:0;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(245,166,35,.14);color:var(--gold);box-shadow:inset 0 0 0 1px rgba(245,166,35,.22)}
.showcase-points b{display:block;font-family:var(--font-display);font-size:var(--fs-md);font-weight:600}
.showcase-points span{font-size:var(--fs-sm);color:rgba(255,255,255,.58)}

.showcase-chips{display:flex;flex-wrap:wrap;gap:var(--sp-2)}
.showcase-chips span{font-family:var(--font-display);font-size:var(--fs-xs);font-weight:600;letter-spacing:var(--ls-wide);color:rgba(255,255,255,.75);padding:var(--sp-2) var(--sp-4);border-radius:100px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);animation:chipFloat 4s ease-in-out infinite;animation-delay:calc(var(--i) * -.8s)}
@keyframes chipFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}

/* field dengan ikon */
.field{position:relative}
.field-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#a3b8ad;pointer-events:none;z-index:1;transition:color .2s}
.field input{padding-left:var(--sp-10)}
.field:focus-within .field-icon{color:var(--green-500)}

/* animasi ganti form */
.auth-form:not([hidden]),#forgotPanel:not([hidden]),#mainPanel:not([hidden]){animation:formIn .4s cubic-bezier(.22,1,.36,1) both}
@keyframes formIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.auth-title--left{text-align:left;margin-bottom:var(--sp-2)}
.auth-subtitle--left{text-align:left;margin-bottom:var(--sp-4)}

/* caps lock + kekuatan password */
.caps-hint{display:inline-flex;align-items:center;gap:var(--sp-2);font-size:var(--fs-xs);font-weight:500;color:#b7791f;margin-top:var(--sp-2)}
.caps-hint::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--gold)}
.pw-strength{display:flex;align-items:center;gap:var(--sp-2);margin-top:var(--sp-2)}
.pw-strength-bars{display:flex;gap:var(--sp-1)}
.pw-strength-bars{flex-shrink:0}
.pw-strength-bars span{width:24px;height:4px;border-radius:4px;background:var(--gray-200);transition:background .3s}
.pw-strength-label{font-size:var(--fs-xs);color:var(--gray-500);transition:color .3s}
.pw-strength[data-level="1"] .pw-strength-bars span:nth-child(-n+1){background:#e53e3e}
.pw-strength[data-level="2"] .pw-strength-bars span:nth-child(-n+2){background:var(--gold)}
.pw-strength[data-level="3"] .pw-strength-bars span:nth-child(-n+3){background:var(--green-400)}
.pw-strength[data-level="4"] .pw-strength-bars span{background:var(--green-600)}
.pw-strength[data-level="1"] .pw-strength-label{color:#c53030}
.pw-strength[data-level="2"] .pw-strength-label{color:#b7791f}
.pw-strength[data-level="3"] .pw-strength-label,.pw-strength[data-level="4"] .pw-strength-label{color:var(--green-600)}

@media(max-width:960px){
  .auth-shell{grid-template-columns:1fr;max-width:440px;margin:var(--sp-6) var(--sp-4)}
  .auth-shell .auth-card{justify-self:stretch}
  .auth-shell .auth-card .auth-logo{display:block}
  .auth-showcase{display:none}
}
@media(max-width:480px){.auth-card{padding:var(--sp-6) var(--sp-5)}.pw-strength-bars span{width:16px}}
@media(prefers-reduced-motion:reduce){
  .auth-showcase,.auth-form,#forgotPanel,#mainPanel,.showcase-chips span,.auth-card{animation:none!important}
  .auth-tabs::before,.showcase-rotator{transition:none}
}