:root{
  --bg:#07111f;
  --bg2:#0d1b2f;
  --panel:rgba(11,22,40,.78);
  --line:rgba(148,163,184,.16);
  --text:#e6f0ff;
  --muted:#8ea6c9;
  --cyan:#48d8ff;
  --blue:#2f6bff;
  --purple:#875cff;
  --green:#2dd4bf;
  --danger:#ff6b7a;
  --shadow:0 24px 60px rgba(0,0,0,.35);
  --radius:24px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:
radial-gradient(circle at top left, rgba(72,216,255,.18), transparent 28%),
radial-gradient(circle at right, rgba(135,92,255,.16), transparent 26%),
linear-gradient(160deg, var(--bg), var(--bg2));color:var(--text)}
a{text-decoration:none;color:inherit}
.auth-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px;overflow:hidden}
.auth-shell{width:min(1180px,100%);display:grid;grid-template-columns:1.08fr .92fr;gap:24px;position:relative}
.auth-panel,.sidebar,.main-content section,.topbar{backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.auth-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);position:relative;z-index:2}
.brand-panel{padding:42px;display:flex;flex-direction:column;justify-content:space-between;min-height:580px}
.brand-panel h1{font-size:42px;line-height:1.08;margin:18px 0 12px;max-width:540px}
.brand-panel p{color:var(--muted);font-size:16px;line-height:1.7;max-width:560px}
.brand-panel-logo{margin-bottom:18px}
.brand-panel-logo img{width:min(240px,100%);height:auto;display:block;filter:drop-shadow(0 14px 28px rgba(255,42,42,.28));}
.brand-badge,.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid rgba(72,216,255,.25);background:rgba(72,216,255,.08);color:#9feeff;font-size:12px;letter-spacing:.18em;text-transform:uppercase}
.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.mini-card{padding:18px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.03)}
.mini-card span{display:block;color:var(--cyan);font-size:12px;letter-spacing:.22em;margin-bottom:8px}
.mini-card strong{font-size:18px}
.login-panel{padding:34px}
.login-head h2{margin:0 0 6px;font-size:30px}
.login-head p{margin:0 0 22px;color:var(--muted)}
.login-form label{display:block;font-size:14px;color:#c6d7f6;margin:14px 0 8px}
.login-form input{width:100%;padding:14px 16px;border-radius:16px;border:1px solid var(--line);outline:none;background:rgba(255,255,255,.04);color:var(--text);font-size:15px}
.login-form input:focus{border-color:rgba(72,216,255,.4);box-shadow:0 0 0 4px rgba(72,216,255,.08)}
.btn-primary{margin-top:18px;width:100%;padding:15px 18px;border:none;border-radius:16px;background:linear-gradient(135deg,var(--cyan),var(--blue));color:#041120;font-weight:800;cursor:pointer;box-shadow:0 16px 40px rgba(47,107,255,.26)}
.alert{padding:14px 16px;border-radius:16px;margin-bottom:16px;font-size:14px}
.alert.error{background:rgba(255,107,122,.12);border:1px solid rgba(255,107,122,.18);color:#ffd5da}
.demo-account{margin-top:22px;padding:18px;border-radius:18px;background:rgba(255,255,255,.03);border:1px solid var(--line)}
.demo-account h4{margin:0 0 12px}.demo-account ul{margin:0;padding-left:18px;color:var(--muted);line-height:1.75}
.auth-glow{position:absolute;border-radius:999px;filter:blur(70px);opacity:.45;z-index:1}
.auth-glow-1{width:260px;height:260px;background:var(--cyan);left:-70px;top:-40px}
.auth-glow-2{width:320px;height:320px;background:var(--purple);right:-80px;bottom:-70px}

.app-body{min-height:100vh;padding:22px}
.dashboard-shell{display:grid;grid-template-columns:290px 1fr;gap:22px;min-height:calc(100vh - 44px)}
.sidebar{background:var(--panel);border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:space-between}
.sidebar-brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.sidebar-brand-logo{width:100%}
.sidebar-brand-logo img{width:min(182px,100%);height:auto;display:block;filter:drop-shadow(0 12px 26px rgba(255,42,42,.34))}
.sidebar-brand-copy h2,.sidebar-brand h2{margin:0;font-size:24px}
.sidebar-brand-copy p,.sidebar-brand p{margin:4px 0 0;color:var(--muted)}
.sidebar-nav{display:flex;flex-direction:column;gap:10px;margin:28px 0 auto}
.nav-item{padding:14px 16px;border-radius:16px;border:1px solid transparent;background:rgba(255,255,255,.03);color:#dbeafe;transition:.2s}
.nav-item:hover,.nav-item.active{border-color:rgba(72,216,255,.25);background:rgba(72,216,255,.08)}
.nav-item.danger{color:#ffd5da;background:rgba(255,107,122,.08)}
.sidebar-foot{padding-top:18px;border-top:1px solid var(--line);color:var(--muted)}
.sidebar-foot strong{display:block;color:var(--text);margin-top:6px}
.main-content{display:flex;flex-direction:column;gap:22px}
.topbar{display:flex;justify-content:space-between;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:22px 24px;box-shadow:var(--shadow)}
.topbar h1{margin:6px 0 0;font-size:32px}
.user-chip{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:18px;background:rgba(255,255,255,.03);border:1px solid var(--line)}
.user-chip span{display:block;color:var(--muted);margin-top:4px}.avatar{width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,var(--purple),var(--blue));display:grid;place-items:center;font-weight:800}
.hero-card,.glass-card,.table-card{background:var(--panel);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
.hero-card{padding:28px;display:grid;grid-template-columns:1.3fr 1fr;gap:24px}.hero-card h2{font-size:34px;line-height:1.15;margin:12px 0}.hero-card p{color:var(--muted);line-height:1.75}
.hero-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.hero-stat{padding:18px;border-radius:20px;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.03));border:1px solid var(--line)}
.hero-stat span{display:block;color:var(--muted);margin-bottom:12px}.hero-stat strong{font-size:32px}
.cards-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.glass-card{padding:24px}.glass-card h3,.table-card h3{margin-top:0;font-size:22px}
.feature-list{margin:0;padding-left:18px;color:var(--muted);line-height:1.9}
.table-card{padding:20px;overflow:auto}
.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.section-head span{color:var(--muted)}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:14px;border-bottom:1px solid rgba(148,163,184,.12)}th{color:#9bb7dd;font-weight:600;font-size:14px}td{color:#eaf2ff}
.role-badge{display:inline-flex;padding:8px 12px;border-radius:999px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}
.role-badge.admin{background:rgba(72,216,255,.14);color:#a5f3fc}.role-badge.guru{background:rgba(45,212,191,.14);color:#99f6e4}.role-badge.siswa{background:rgba(135,92,255,.14);color:#ddd6fe}

@media (max-width: 980px){
  .auth-shell,.dashboard-shell,.hero-card,.cards-grid{grid-template-columns:1fr}
  .brand-panel{min-height:auto}
}
@media (max-width: 640px){
  .app-body,.auth-body{padding:14px}
  .mini-stats,.hero-grid{grid-template-columns:1fr}
  .topbar{flex-direction:column;align-items:flex-start;gap:14px}
}


.table-link{color:#8bd3ff;text-decoration:none;font-weight:700;}
.table-link:hover{text-decoration:underline;}
.student-links{display:flex;flex-wrap:wrap;gap:10px;max-height:320px;overflow:auto;padding-right:6px;}
.student-link-chip{display:inline-flex;align-items:center;padding:10px 14px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);color:#eaf7ff;text-decoration:none;font-size:.9rem;}
.student-link-chip.active{background:rgba(76,190,255,.18);border-color:rgba(76,190,255,.55);box-shadow:0 0 0 1px rgba(76,190,255,.18) inset;}
small{opacity:.75;}

.cards-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width: 980px){.cards-grid-3{grid-template-columns:1fr}}

.alert.success{background:rgba(45,212,191,.12);border:1px solid rgba(45,212,191,.18);color:#b6fff0}
.stack-form{display:flex;flex-direction:column;gap:10px}
.stack-form input,.stack-form select,.stack-form textarea{width:100%;padding:13px 14px;border-radius:16px;border:1px solid var(--line);outline:none;background:rgba(255,255,255,.04);color:var(--text);font-size:15px}
.stack-form input:focus,.stack-form select:focus,.stack-form textarea:focus{border-color:rgba(72,216,255,.4);box-shadow:0 0 0 4px rgba(72,216,255,.08)}
.small-btn{width:auto;align-self:flex-start;padding:12px 18px;text-decoration:none}
.student-photo-wrap{margin:8px 0 16px}
.student-photo-lg{width:100%;max-width:260px;aspect-ratio:1/1;object-fit:cover;border-radius:24px;border:1px solid var(--line);display:block}
.student-photo-sm{width:82px;height:82px;border-radius:20px;object-fit:cover;border:1px solid var(--line)}
.student-photo-placeholder{width:100%;max-width:260px;aspect-ratio:1/1;border-radius:24px;background:linear-gradient(135deg,var(--purple),var(--blue));display:grid;place-items:center;font-size:68px;font-weight:800}
.student-photo-placeholder.sm{width:82px;height:82px;font-size:30px;border-radius:20px;flex:0 0 auto}
.profile-summary-flex{display:flex;gap:16px;align-items:flex-start}
.compact-list{padding-left:18px;margin:0}
.module-checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.module-item{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.module-item.done{border-color:rgba(45,212,191,.4);background:rgba(45,212,191,.08)}
.module-item input{width:18px;height:18px;margin-top:3px}
.module-item strong{display:block;margin-bottom:6px}
.module-item span{color:var(--muted);font-size:14px;line-height:1.6}
.profile-photo-card,.profile-edit-card,.profile-summary-card{height:100%}
.avatar-photo{object-fit:cover}
@media (max-width: 980px){.module-checklist{grid-template-columns:1fr}.profile-summary-flex{flex-direction:column;align-items:flex-start}}



.topbar-with-robot{position:relative;overflow:hidden;gap:18px;padding-right:20px}
.topbar-copy{flex:1;min-width:0}
.topbar-right{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
.topbar-robot{display:flex;align-items:center;justify-content:center;width:118px;min-width:118px;align-self:flex-start;margin-top:-2px}
.topbar-robot-img{max-width:100%;height:auto;display:block;filter:drop-shadow(0 18px 28px rgba(72,216,255,.22));animation:robotFloat 3.8s ease-in-out infinite;pointer-events:none}
@keyframes robotFloat{0%{transform:translateY(0)}50%{transform:translateY(-8px)}100%{transform:translateY(0)}}
@media (max-width: 980px){.topbar-with-robot{align-items:flex-start}.topbar-right{width:100%;justify-content:space-between}.topbar-robot{width:88px;min-width:88px;order:2;margin-left:auto}.user-chip{order:1}}
@media (max-width: 640px){.topbar-right{gap:10px}.topbar-robot{width:74px;min-width:74px}}


/* PREMIUM UI TOTAL UPGRADE */
:root{
  --panel-soft:rgba(255,255,255,.035);
  --panel-strong:rgba(12,24,44,.88);
  --line-bright:rgba(112,236,255,.26);
  --glow-cyan:0 0 0 1px rgba(72,216,255,.10), 0 20px 60px rgba(25,111,255,.18);
  --glow-purple:0 0 0 1px rgba(135,92,255,.10), 0 20px 60px rgba(135,92,255,.16);
}
body.app-body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(circle at 8% 12%, rgba(72,216,255,.16), transparent 24%),
    radial-gradient(circle at 92% 10%, rgba(135,92,255,.12), transparent 22%),
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:auto, auto, 44px 44px, 44px 44px;
  mask-image:radial-gradient(circle at center, black 58%, transparent 100%);
  opacity:.78;
}
.dashboard-shell,.main-content,.sidebar,.topbar,.hero-card,.glass-card,.table-card{position:relative;z-index:1}
.sidebar{
  background:linear-gradient(180deg, rgba(10,21,39,.96), rgba(9,18,33,.88));
  border-color:rgba(118,160,255,.14);
  box-shadow:0 28px 70px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.05);
}
.sidebar::before{
  content:"";position:absolute;inset:0;border-radius:28px;pointer-events:none;
  background:linear-gradient(180deg, rgba(255,255,255,.06), transparent 18%, transparent 82%, rgba(112,236,255,.05));
}
.sidebar-brand-copy h2,.sidebar-brand h2{font-size:28px;letter-spacing:-.02em}
.sidebar-brand-copy p,.sidebar-brand p{font-size:14px;color:#b8d5ff}
.sidebar-nav{gap:12px}
.nav-item{
  position:relative;
  padding:15px 18px;
  border-radius:18px;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
  border:1px solid rgba(255,255,255,.05);
  box-shadow:0 10px 22px rgba(0,0,0,.18);
  font-weight:600;
  overflow:hidden;
}
.nav-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),var(--blue));opacity:0;transition:.22s;
}
.nav-item:hover,.nav-item.active{
  transform:translateY(-1px);
  border-color:var(--line-bright);
  background:linear-gradient(180deg, rgba(61,129,255,.13), rgba(17,34,62,.55));
  box-shadow:var(--glow-cyan);
}
.nav-item:hover::before,.nav-item.active::before{opacity:1}
.nav-item.danger{
  background:linear-gradient(180deg, rgba(255,107,122,.10), rgba(90,24,40,.20));
  border-color:rgba(255,107,122,.14);
}
.nav-item.danger:hover{box-shadow:0 0 0 1px rgba(255,107,122,.14), 0 20px 50px rgba(120,20,40,.18)}
.sidebar-foot{background:rgba(255,255,255,.025);padding:18px;border-radius:20px;border:1px solid rgba(255,255,255,.05)}
.topbar{
  background:linear-gradient(180deg, rgba(11,22,40,.94), rgba(10,19,34,.84));
  box-shadow:0 18px 40px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.05);
}
.topbar-with-robot::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle, rgba(72,216,255,.18), transparent 65%);pointer-events:none;
}
.user-chip{
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
  box-shadow:0 14px 30px rgba(0,0,0,.16);
}
.hero-card,.glass-card,.table-card{
  background:linear-gradient(180deg, rgba(14,27,49,.88), rgba(9,17,30,.84));
  border-color:rgba(130,170,255,.14);
  box-shadow:0 26px 60px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.05);
}
.hero-card{overflow:hidden}
.hero-card::before,.glass-card::before,.table-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg, rgba(255,255,255,.045), transparent 20%, transparent 78%, rgba(72,216,255,.04));
}
.hero-stat{
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
  box-shadow:0 16px 30px rgba(0,0,0,.14);
}
.hero-stat strong{font-size:34px;text-shadow:0 8px 24px rgba(47,107,255,.18)}
.glass-card:hover,.table-card:hover,.hero-stat:hover{transform:translateY(-2px);transition:.22s ease}
.btn-primary,.small-btn{
  background:linear-gradient(180deg, #9af4ff, #51a6ff);
  color:#06101d;
  box-shadow:0 8px 0 rgba(33,83,170,.55), 0 22px 36px rgba(40,133,255,.22);
}
.btn-primary:hover,.small-btn:hover{transform:translateY(-2px)}
.btn-primary:active,.small-btn:active{transform:translateY(4px);box-shadow:0 3px 0 rgba(33,83,170,.55), 0 12px 24px rgba(40,133,255,.18)}
.section-head h3,.glass-card h3,.table-card h3{letter-spacing:-.02em}
.table-card{overflow:hidden}
.table-card table{position:relative;z-index:1}
.table-card tbody tr{transition:background .18s ease, transform .18s ease}
.table-card tbody tr:hover{background:rgba(72,216,255,.05)}
th{letter-spacing:.04em;text-transform:uppercase;font-size:12px}
.table-link{position:relative}
.table-link::after{content:"";position:absolute;left:0;right:100%;bottom:-3px;height:2px;background:currentColor;transition:.22s}
.table-link:hover::after{right:0}
.feature-list li{margin-bottom:8px}
.student-link-chip,.module-item{
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
  box-shadow:0 12px 24px rgba(0,0,0,.12);
}
.module-item.done{box-shadow:0 0 0 1px rgba(45,212,191,.20), 0 18px 30px rgba(11,90,77,.14)}
input,select,textarea{transition:border-color .18s ease, box-shadow .18s ease, transform .18s ease}
input:focus,select:focus,textarea:focus{transform:translateY(-1px)}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:rgba(255,255,255,.03);border-radius:999px}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg, rgba(72,216,255,.65), rgba(47,107,255,.65));border-radius:999px;border:2px solid rgba(6,16,29,.7)}
@media (max-width:980px){
  .sidebar{padding:20px}
  .nav-item{padding:14px 16px}
}