/* ═══════════════════════════════════════════
   GAME UI STYLE — Smart Attendance System
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Nunito:wght@400;600;700;800&display=swap');

:root {
  --green:  #5cb85c; --green-d: #3d8b3d;
  --orange: #f0921e; --orange-d:#c4720f;
  --blue:   #3a9fd8; --blue-d:  #2176ae;
  --red:    #e04040; --red-d:   #b02020;
  --purple: #9b59b6; --purple-d:#7d3c98;
  --white:  #ffffff; --off:     #f5f0eb;
  --text:   #3d2b1f; --muted:   #7a6555;
  --shadow: rgba(0,0,0,0.25);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}

/* ── Background — warm autumn fantasy ─── */
body {
  font-family:'Nunito',sans-serif;
  min-height:100vh;
  background:
    radial-gradient(ellipse 120% 60% at 50% 0%, #e8a850 0%, #c4682a 40%, #6b3a1f 70%, #2d1a0e 100%);
  background-attachment:fixed;
  color:var(--text);
  overflow-x:hidden;
}

/* Animated autumn leaves effect */
body::before {
  content:'';position:fixed;inset:0;z-index:0;
  background:
    radial-gradient(circle at 15% 80%, rgba(34,85,34,0.6) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(34,75,20,0.5) 0%, transparent 35%),
    radial-gradient(circle at 50% 95%, rgba(20,60,10,0.8) 0%, transparent 30%);
  pointer-events:none;
}
body::after {
  content:'🍂🍁🍃🌿';
  position:fixed;top:-40px;left:0;width:100%;
  font-size:1.5rem;letter-spacing:8rem;
  animation:falling 12s linear infinite;
  pointer-events:none;z-index:0;opacity:.6;
}
@keyframes falling{0%{transform:translateY(-40px) rotate(0)}100%{transform:translateY(110vh) rotate(720deg)}}

/* ── Main layout ─── */
.main {
  max-width:1100px;margin:0 auto;
  padding:2rem 1.5rem 5rem;
  position:relative;z-index:1;
  display:flex;flex-direction:column;gap:2rem;
}

/* ── HEADER ─── */
.header {
  position:sticky;top:0;z-index:100;
  background:linear-gradient(135deg,#2d5a1b,#1a3a0f);
  border-bottom:4px solid var(--orange);
  box-shadow:0 4px 20px rgba(0,0,0,.5);
  padding:0 2rem;
}
.header-inner{
  max-width:1100px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;height:66px;
}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{font-size:2.2rem}
.logo-title{
  font-family:'Fredoka One',cursive;
  font-size:1.7rem;color:#fff;display:block;
  text-shadow:2px 2px 0 rgba(0,0,0,.4);
  letter-spacing:.03em;
}
.logo-sub{font-size:.72rem;color:#a8d890;letter-spacing:.12em;text-transform:uppercase;display:block}

.status-pill{
  display:flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(0,0,0,.35);border:2px solid rgba(255,255,255,.15);
  font-size:.82rem;color:rgba(255,255,255,.7);font-weight:700;
}
.status-dot{width:9px;height:9px;border-radius:50%;background:#555}
.status-pill.online .status-dot{background:#7fff00;box-shadow:0 0 8px #7fff00}
.status-pill.online{color:#b8ffb8;border-color:rgba(127,255,0,.4)}

/* ── GAME CARD ─── */
.card {
  background:var(--white);
  border-radius:16px;
  border:3px solid rgba(0,0,0,.12);
  position:relative;overflow:hidden;
  /* Stacked card effect */
  box-shadow:
    0 4px 0 rgba(0,0,0,.15),
    0 8px 0 rgba(0,0,0,.08),
    0 12px 25px rgba(0,0,0,.3);
  transition:transform .2s,box-shadow .2s;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 8px 0 rgba(0,0,0,.15),0 14px 0 rgba(0,0,0,.08),0 18px 35px rgba(0,0,0,.35);
}

/* ── Card Headers (colored banners) ─── */
.card-header {
  padding:1rem 1.6rem 1.2rem;
  margin:-1px -1px 0;
}
.upload-card .card-header{background:linear-gradient(135deg,#4a9e4a,#2f7a2f)}
.train-card  .card-header{background:linear-gradient(135deg,#c0392b,#922b21)}
.card-header.centered{text-align:center;padding-bottom:1.5rem}
.card-header h2{
  font-family:'Fredoka One',cursive;
  font-size:1.8rem;color:#fff;margin:.3rem 0 .2rem;
  text-shadow:2px 2px 0 rgba(0,0,0,.3);letter-spacing:.04em;
}
.card-header p{color:rgba(255,255,255,.8);font-size:.88rem;font-weight:600}

.step-badge{
  display:inline-block;padding:3px 12px;border-radius:999px;
  font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  background:rgba(255,255,255,.25);color:#fff;
  border:1.5px solid rgba(255,255,255,.4);
}

/* Card body padding */
.card > *:not(.card-header){padding-left:1.6rem;padding-right:1.6rem}
.card > *:last-child{padding-bottom:1.6rem}

/* ── Drop Zone ─── */
.drop-zone{
  border:3px dashed #ccc;border-radius:12px;
  padding:2.5rem 1.5rem;text-align:center;cursor:pointer;
  margin:1.2rem 0;
  background:var(--off);transition:all .2s;
}
.drop-zone:hover,.drop-zone.dragover{
  border-color:var(--orange);background:#fff8ee;
  box-shadow:0 0 0 4px rgba(240,146,30,.2);
}
.drop-icon{font-size:3rem;animation:bounce 2s ease-in-out infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.drop-label{font-size:1rem;font-weight:800;color:var(--text);margin:.5rem 0 .2rem}
.drop-sub{color:var(--muted);font-size:.85rem;margin-bottom:.9rem}

/* ── Divider ─── */
.divider{display:flex;align-items:center;gap:.8rem;color:var(--muted);font-size:.85rem;font-weight:700;margin:.5rem 0}
.divider::before,.divider::after{content:'';flex:1;height:2px;background:#e0d5cc;border-radius:2px}

/* ── Upload actions ─── */
.upload-actions{text-align:center;margin-bottom:1rem}
.student-row{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap;margin-top:1rem;padding-top:1rem;border-top:2px solid var(--off)}
.student-row label{font-weight:700;font-size:.88rem;color:var(--muted)}
.select-input{
  flex:1;padding:9px 12px;border-radius:10px;
  border:2.5px solid #ccc;background:#fff;
  font-family:'Nunito',sans-serif;font-size:.9rem;font-weight:700;
  color:var(--text);cursor:pointer;transition:border .2s;
}
.select-input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(58,159,216,.2)}

.upload-summary{
  margin-top:1rem;padding:1rem 1.2rem;
  background:#f0fff0;border:2.5px solid var(--green);border-radius:12px;
}
.sum-row{display:flex;gap:1.5rem;flex-wrap:wrap;justify-content:center}
.sum-stat{text-align:center}
.sum-stat .val{
  font-family:'Fredoka One',cursive;font-size:2rem;display:block;color:var(--green-d);
}
.sum-stat .lbl{font-size:.72rem;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}

/* ── BUTTONS ─── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 26px;border-radius:10px;
  border:none;cursor:pointer;
  font-family:'Fredoka One',cursive;font-size:1rem;
  letter-spacing:.06em;text-transform:uppercase;
  transition:all .15s;position:relative;text-decoration:none;
}
.btn:active{transform:translateY(3px)}

.btn-primary{
  background:linear-gradient(180deg,#f5a623,var(--orange));
  color:#fff;
  border-bottom:4px solid var(--orange-d);
  box-shadow:0 4px 15px rgba(240,146,30,.4);
}
.btn-primary:hover{
  background:linear-gradient(180deg,#f7b840,#f0921e);
  box-shadow:0 6px 20px rgba(240,146,30,.5);transform:translateY(-2px);
}
.btn-primary:active{border-bottom-width:1px;transform:translateY(3px)}

.btn-outline{
  background:linear-gradient(180deg,#4fc3f7,var(--blue));
  color:#fff;border-bottom:4px solid var(--blue-d);
  box-shadow:0 4px 12px rgba(58,159,216,.3);
}
.btn-outline:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(58,159,216,.4)}
.btn-outline:active{border-bottom-width:1px;transform:translateY(3px)}

.btn-full{width:100%;margin:1rem 0 0}
.btn-sm{padding:7px 16px;font-size:.82rem}

/* ── Model list ─── */
.model-list{display:flex;flex-direction:column;gap:.75rem;margin:1rem 0}
.model-item{
  display:flex;align-items:center;gap:.85rem;
  padding:.85rem 1rem;border-radius:12px;
  background:var(--off);
  border:2.5px solid #e0d5cc;transition:all .2s;
}
.model-item:nth-child(1){border-left:5px solid var(--green)}
.model-item:nth-child(2){border-left:5px solid var(--orange)}
.model-item:nth-child(3){border-left:5px solid var(--purple)}
.model-item:hover{background:#fff;transform:translateX(4px);box-shadow:3px 0 15px rgba(0,0,0,.1)}
.model-icon{font-size:1.6rem}
.model-item>div{flex:1}
.model-item strong{display:block;font-size:.95rem;font-weight:800;color:var(--text)}
.model-item small{color:var(--muted);font-size:.77rem;font-weight:600}

.model-badge{
  padding:5px 14px;border-radius:8px;font-size:.78rem;font-weight:800;
  background:#e0d5cc;color:var(--muted);
  border:2px solid rgba(0,0,0,.08);transition:all .3s;white-space:nowrap;
}
.model-badge.trained{
  background:linear-gradient(135deg,#d4edda,#b8dfb8);
  color:var(--green-d);border-color:var(--green);
  box-shadow:0 2px 8px rgba(92,184,92,.3);
}
.model-badge.training{
  background:linear-gradient(135deg,#fff3cd,#fce8a0);
  color:#8a6000;border-color:var(--orange);
  animation:wag .4s ease-in-out infinite alternate;
}
@keyframes wag{from{transform:rotate(-2deg)}to{transform:rotate(2deg)}}

/* ── Progress ─── */
.train-progress{margin:1rem 0;text-align:center}
.progress-bar{
  height:20px;border-radius:999px;
  background:#e0d5cc;border:2.5px solid rgba(0,0,0,.12);
  overflow:hidden;margin-bottom:.5rem;
  box-shadow:inset 0 2px 6px rgba(0,0,0,.15);
}
.progress-fill{
  height:100%;border-radius:999px;width:0%;
  background:repeating-linear-gradient(
    45deg,
    var(--green) 0,var(--green) 15px,
    #4aad4a 15px,#4aad4a 30px
  );
  background-size:42px 100%;
  animation:stripes .8s linear infinite;
  transition:width .4s ease;
  box-shadow:0 2px 8px rgba(92,184,92,.4);
}
@keyframes stripes{to{background-position:42px 0}}
#progressLabel{font-size:.85rem;font-weight:700;color:var(--muted)}

/* ── Status log ─── */
.status-log{
  margin-top:.75rem;max-height:100px;overflow-y:auto;
  background:var(--off);border:2px solid #d0c5bb;border-radius:10px;
  padding:.5rem .9rem;font-family:'Courier New',monospace;font-size:.72rem;color:var(--muted);
}
.status-log:empty::before{content:"[ Training log will appear here... ]";opacity:.5}

/* ── Dashboard ─── */
.dashboard{display:flex;flex-direction:column;gap:1.5rem}

/* ── Dashboard header ─── */
.dashboard .card-header{
  background:linear-gradient(135deg,#1565c0,#0d47a1);
  border-radius:16px 16px 0 0;
  text-align:center;padding:1.2rem 1.5rem;
}
.dashboard .card-header h2{font-size:1.6rem}
#dashStudentName{color:rgba(255,255,255,.8);font-size:.9rem;font-weight:700}

/* ── KPI Grid ─── */
.kpi-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.2rem;
}
.kpi-card{
  border-radius:14px;padding:1.4rem;
  border:3px solid rgba(0,0,0,.1);
  box-shadow:0 4px 0 rgba(0,0,0,.12),0 6px 20px rgba(0,0,0,.15);
  transition:all .2s;
}
.kpi-card:nth-child(1){background:linear-gradient(135deg,#e8f5e9,#c8e6c9);border-color:#81c784}
.kpi-card:nth-child(2){background:linear-gradient(135deg,#fce4ec,#f8bbd0);border-color:#e91e63}
.kpi-card:nth-child(3){background:linear-gradient(135deg,#e3f2fd,#bbdefb);border-color:#42a5f5}
.kpi-card:nth-child(4){background:linear-gradient(135deg,#fff3e0,#ffe0b2);border-color:#ff9800}
.kpi-card:hover{transform:translateY(-5px);box-shadow:0 8px 0 rgba(0,0,0,.12),0 12px 30px rgba(0,0,0,.2)}

.kpi-label{font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:.5rem}
.kpi-value{font-family:'Fredoka One',cursive;font-size:2.4rem;line-height:1;margin-bottom:.6rem;color:var(--text)}
.risk-value,.cluster-value{font-size:1.6rem}
.kpi-sub{font-size:.76rem;font-weight:700;color:var(--muted)}
.kpi-bar{height:10px;border-radius:999px;background:rgba(0,0,0,.12);margin-bottom:.5rem;overflow:hidden}
.kpi-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--green),#8bc34a);transition:width 1.2s cubic-bezier(.34,1.56,.64,1)}
.kpi-threshold{display:none}

/* ── Charts ─── */
.charts-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
@media(max-width:768px){.charts-grid{grid-template-columns:1fr}}
.chart-card{
  background:#fff;border-radius:14px;padding:1.2rem;
  border:3px solid rgba(0,0,0,.08);
  box-shadow:0 4px 0 rgba(0,0,0,.1),0 6px 20px rgba(0,0,0,.12);
}
.chart-card h3{font-size:.88rem;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:1rem}
.chart-wrap{position:relative;height:220px}

/* ── Recommendation Card ─── */
.recommendation-card{
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
  padding:1.5rem;border-radius:14px;flex-wrap:wrap;
  background:linear-gradient(135deg,#fff8e1,#fff3cd);
  border:3px solid var(--orange);
  box-shadow:0 4px 0 var(--orange-d),0 8px 25px rgba(240,146,30,.25);
  transition:all .4s;
}
.recommendation-card.safe{
  background:linear-gradient(135deg,#e8f5e9,#d4edda);
  border-color:var(--green);
  box-shadow:0 4px 0 var(--green-d),0 8px 25px rgba(92,184,92,.25);
}
.recommendation-card.risky{
  background:linear-gradient(135deg,#fce4ec,#f8d7da);
  border-color:var(--red);
  box-shadow:0 4px 0 var(--red-d),0 8px 25px rgba(220,53,69,.25);
}
.rec-left{display:flex;align-items:center;gap:1rem}
.verdict-icon{font-size:3.5rem;filter:drop-shadow(2px 4px 0 rgba(0,0,0,.2))}
.verdict-icon.bounce{animation:iconBounce .5s cubic-bezier(.34,1.56,.64,1)}
@keyframes iconBounce{0%{transform:scale(1)}50%{transform:scale(1.5) rotate(10deg)}100%{transform:scale(1)}}
.verdict-title{font-family:'Fredoka One',cursive;font-size:1.6rem;color:var(--text);margin-bottom:.3rem}
.verdict-reason{color:var(--muted);font-size:.9rem;font-weight:600;max-width:500px}

/* ── Insights ─── */
.insights-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
@media(max-width:768px){.insights-grid{grid-template-columns:1fr}}

.insights-card,.safe-days-card{background:#fff}
.insights-card h3,.safe-days-card h3{
  font-family:'Fredoka One',cursive;font-size:1.1rem;margin-bottom:1rem;
  padding-bottom:.75rem;border-bottom:2.5px solid var(--off);
}
.insights-card h3{color:var(--purple-d)}
.safe-days-card h3{color:var(--blue-d)}

.insights-list{list-style:none;display:flex;flex-direction:column;gap:.6rem}
.insights-list li{
  font-size:.86rem;font-weight:600;line-height:1.5;
  padding:.65rem .9rem;border-radius:10px;
  background:var(--off);border-left:4px solid transparent;
  transition:all .2s;animation:fadeUp .3s ease both;
}
.insights-list li:nth-child(odd){border-left-color:var(--purple);background:#faf5ff}
.insights-list li:nth-child(even){border-left-color:var(--blue);background:#f0f8ff}
.insights-list li:hover{transform:translateX(4px)}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.placeholder-li,.placeholder-p{color:var(--muted);font-style:italic;font-size:.85rem}

.safe-days{display:flex;flex-direction:column;gap:.65rem;margin-bottom:1.2rem}
.safe-day-chip{
  display:flex;align-items:center;gap:.7rem;
  padding:.65rem .9rem;border-radius:10px;
  background:#edfff0;border:2px solid var(--green);
  font-size:.88rem;font-weight:700;color:var(--green-d);transition:all .2s;
}
.safe-day-chip:hover{transform:translateX(4px);background:#d4edda}
.no-safe-chip{
  padding:.7rem .9rem;border-radius:10px;
  background:#fff0f0;border:2px solid var(--red);
  font-size:.86rem;font-weight:700;color:var(--red-d);
}

/* ── Bunk prob bar ─── */
.bunk-prob-label{font-size:.76rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:.4rem}
.bunk-prob-bar{height:14px;border-radius:999px;background:#e0d5cc;border:2px solid rgba(0,0,0,.1);overflow:hidden;margin-bottom:.5rem}
.bunk-prob-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#ffc107,#ff5722);transition:width 1.2s cubic-bezier(.34,1.56,.64,1);box-shadow:0 2px 6px rgba(255,87,34,.3)}
.bunk-prob-val{font-family:'Fredoka One',cursive;font-size:1.1rem;color:var(--orange-d)}

/* ── Toast ─── */
.toast{
  position:fixed;bottom:2rem;right:2rem;z-index:9999;
  padding:1rem 1.5rem;border-radius:14px;background:#fff;
  border:3px solid var(--orange);color:var(--text);font-weight:700;
  box-shadow:0 4px 0 var(--orange-d),0 8px 25px rgba(0,0,0,.25);
  animation:popIn .3s cubic-bezier(.34,1.56,.64,1);max-width:360px;
}
@keyframes popIn{from{opacity:0;transform:scale(.8) translateY(20px)}to{opacity:1;transform:none}}

/* ── Utility ─── */
.hidden{display:none!important}
.upload-card>.card-header,.train-card>.card-header{padding:1.2rem 1.6rem}
.upload-card>*:not(.card-header),.train-card>*:not(.card-header){padding-left:1.6rem;padding-right:1.6rem}
.upload-card>*:last-child,.train-card>*:last-child{padding-bottom:1.6rem}

/* ── Scrollbar ─── */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:#f5f0eb}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--orange),var(--red));border-radius:3px}

@media(max-width:600px){
  .main{padding:1rem 1rem 3rem}
  .kpi-value{font-size:1.8rem}
  .kpi-grid{grid-template-columns:1fr 1fr}
}