/* ── CSS Variables ── */
:root {
  --bg:#f5f5f5; --surface:#fff; --surface2:#f0f0f0; --border:#e0e0e0;
  --text:#1a1a1a; --text-muted:#666; --accent:#e8a020; --accent-hover:#c8880e;
  --primary:#1a3a5c; --primary-light:#2563eb;
  --success:#16a34a; --danger:#dc2626; --info:#0284c7;
  --sidebar-w:240px; --radius:8px; --shadow:0 1px 3px rgba(0,0,0,.1);
}
[data-theme="dark"] {
  --bg:#0f0f0f; --surface:#1c1c1c; --surface2:#252525; --border:#333;
  --text:#f0f0f0; --text-muted:#999; --primary:#2563eb;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{overflow-x:hidden}
body{font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;overflow-x:hidden}
a{color:var(--primary-light);text-decoration:none}

/* ── Layout ── */
.app-layout{display:flex;min-height:100vh}
.main-wrap{flex:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-height:100vh;transition:margin-left .3s ease;overflow-x:hidden;min-width:0}
.page-main{padding:24px;flex:1;overflow-x:hidden;min-width:0}

/* Collapsed state for main content */
[data-sidebar="collapsed"] .main-wrap{margin-left:60px}

/* ── Sidebar ── */
.sidebar{width:var(--sidebar-w);background:var(--primary);position:fixed;top:0;left:0;height:100vh;display:flex;flex-direction:column;z-index:100;transition:width .3s ease}
.sidebar-toggle{position:absolute;top:50%;right:-12px;transform:translateY(-50%);width:24px;height:48px;background:var(--accent);border:none;border-radius:0 6px 6px 0;cursor:pointer;color:#fff;font-size:10px;display:flex;align-items:center;justify-content:center;z-index:101;opacity:0;transition:opacity .2s}
.sidebar:hover .sidebar-toggle{opacity:1}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:16px;border-bottom:1px solid rgba(255,255,255,.1);overflow:hidden;white-space:nowrap}
.sidebar-logo{font-size:24px;flex-shrink:0}
.sidebar-brand-text{transition:opacity .2s}
.sidebar-title{font-size:14px;font-weight:700;color:#fff}
.sidebar-sub{font-size:10px;color:rgba(255,255,255,.5)}
.sidebar-nav{flex:1;padding:8px 0;overflow-y:auto;overflow-x:hidden}
.nav-section{padding:12px 16px 4px;font-size:10px;font-weight:600;color:rgba(255,255,255,.4);text-transform:uppercase;letter-spacing:.06em;overflow:hidden;white-space:nowrap}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 16px;color:rgba(255,255,255,.75);font-size:13.5px;transition:background .15s;border-radius:0;overflow:hidden;white-space:nowrap}
.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.nav-item.active{border-left:3px solid var(--accent)}
.nav-icon{width:18px;text-align:center;flex-shrink:0}
.nav-text{transition:opacity .2s}
.sidebar-footer{padding:12px 16px;border-top:1px solid rgba(255,255,255,.1);overflow:hidden}
.sidebar-user{display:flex;align-items:center;gap:10px;overflow:hidden}
.sidebar-user-info{transition:opacity .2s;overflow:hidden}
.user-avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:13px;flex-shrink:0}
.user-name{font-size:12px;color:#fff;font-weight:600;white-space:nowrap}
.user-role{font-size:11px;color:rgba(255,255,255,.4);white-space:nowrap}

/* Collapsed Sidebar */
[data-sidebar="collapsed"] .sidebar{width:60px}
[data-sidebar="collapsed"] .sidebar-brand-text{opacity:0;width:0}
[data-sidebar="collapsed"] .nav-section{opacity:0}
[data-sidebar="collapsed"] .nav-text{opacity:0;width:0}
[data-sidebar="collapsed"] .sidebar-user-info{opacity:0;width:0}
[data-sidebar="collapsed"] .nav-item{padding:9px 21px}
[data-sidebar="collapsed"] .sidebar-footer .btn{font-size:0;padding:4px}
[data-sidebar="collapsed"] .main-wrap{margin-left:60px}
[data-sidebar="collapsed"] .sidebar-toggle{opacity:1}

/* ── Topbar ── */
.topbar{background:var(--surface);border-bottom:1px solid var(--border);height:52px;display:flex;align-items:center;padding:0 20px;gap:12px;position:sticky;top:0;z-index:50;box-shadow:var(--shadow)}
.topbar-brand{font-weight:700;font-size:15px;flex:1}
.topbar-right{display:flex;align-items:center;gap:10px}
.topbar-user{font-size:13px;color:var(--text-muted)}
.hamburger{display:none;background:none;border:none;font-size:20px;cursor:pointer;color:var(--text)}
.theme-btn{background:none;border:1px solid var(--border);border-radius:20px;padding:3px 10px;cursor:pointer;font-size:13px;color:var(--text)}

/* ── Cards ── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px}
.card-header{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.card-header h3{font-size:14px;font-weight:600;margin:0}
.card-body{padding:18px}

/* ── Stats ── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin-bottom:20px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.stat-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.stat-value{font-size:28px;font-weight:700;color:var(--primary-light);margin:4px 0}
.stat-sub{font-size:11px;color:var(--text-muted)}
.stat-highlight .stat-value{color:var(--accent)}

/* ── Progress ── */
.progress-bar{height:6px;background:var(--border);border-radius:3px;overflow:hidden;min-width:80px}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary-light),var(--accent));border-radius:3px;transition:width .4s}

/* ── Table ── */
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}
.table th{background:var(--surface2);font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}
.table tr:hover td{background:var(--surface2)}
.total-row td{background:var(--primary)!important;color:#fff;font-weight:700}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all .15s;white-space:nowrap}
.btn-primary{background:var(--primary-light);color:#fff;border-color:var(--primary-light)}
.btn-primary:hover{opacity:.88}
.btn-secondary{background:var(--surface2);color:var(--text);border-color:var(--border)}
.btn-secondary:hover{background:var(--border)}
.btn-success{background:var(--success);color:#fff}
.btn-danger{background:var(--danger);color:#fff}
.btn-outline{background:none;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{background:var(--surface2)}
.btn-sm{padding:4px 10px;font-size:12px}
.btn-block{width:100%;justify-content:center}

/* ── Forms ── */
.form-group{margin-bottom:14px}
.form-label{display:block;font-size:12px;font-weight:600;margin-bottom:4px;color:var(--text)}
.form-control{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--text);font-size:13.5px;transition:border-color .15s}
.form-control:focus{outline:none;border-color:var(--primary-light);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.form-control-sm{padding:4px 8px;font-size:12px;border:1px solid var(--border);border-radius:5px;background:var(--surface);color:var(--text)}
textarea.form-control{resize:vertical;min-height:70px}

/* ── Badges ── */
.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:600}
.badge-blue{background:rgba(37,99,235,.12);color:#2563eb}
.badge-green{background:rgba(22,163,74,.12);color:#16a34a}
.badge-gray{background:var(--surface2);color:var(--text-muted)}
.badge-red{background:rgba(220,38,38,.12);color:#dc2626}
.btn-warning{background:#d97706;color:#fff;border-color:#d97706}
.btn-warning:hover{opacity:.88}

/* ── Accordion ── */
.accordion{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-bottom:16px}
.accordion-item{border-bottom:1px solid var(--border)}
.accordion-item:last-child{border-bottom:none}
.accordion-header{display:flex;align-items:center;gap:10px;padding:12px 16px;background:var(--surface2);cursor:pointer;user-select:none;transition:background .15s}
.accordion-header:hover{background:var(--border)}
.acc-kode{font-weight:700;color:var(--primary-light);min-width:28px}
.acc-title{flex:1;font-weight:600;font-size:13.5px}
.acc-bobot{font-size:12px;color:var(--text-muted)}
.acc-chevron{font-size:11px;transition:transform .2s;margin-left:8px}
.accordion-header.open .acc-chevron{transform:rotate(180deg)}
.accordion-body{display:none;padding:16px}
.accordion-body.open{display:block}

/* ── Sub Section ── */
.sub-section{margin-bottom:16px;border:1px solid var(--border);border-radius:6px;overflow:hidden}
.sub-header{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--surface2);font-size:13px}
.ml-auto{margin-left:auto}

/* ── Indicator Card ── */
.indicator-card{border-bottom:1px solid var(--border);padding:14px}
.indicator-card:last-child{border-bottom:none}
.indicator-header{display:flex;align-items:center;gap:8px;margin-bottom:10px;flex-wrap:wrap}
.ind-kode{font-size:11px;font-weight:700;color:var(--text-muted);background:var(--surface2);padding:2px 6px;border-radius:4px}
.ind-nama{flex:1;font-weight:600;font-size:13px}
.ind-bobot{font-size:12px;color:var(--text-muted)}

/* ── Score Options ── */
.score-options{display:flex;flex-direction:column;gap:6px}
.score-option{display:flex;align-items:center;gap:10px;padding:8px 12px;border:1px solid var(--border);border-radius:6px;cursor:pointer;transition:all .15s}
.score-option:hover{border-color:var(--primary-light);background:rgba(37,99,235,.04)}
.score-option.selected,.score-option:has(input:checked){border-color:var(--primary-light);background:rgba(37,99,235,.08)}
.score-option input{flex-shrink:0}
.opt-key{font-weight:700;color:var(--primary-light);min-width:16px}
.opt-text{flex:1;font-size:13px}
.opt-nilai{font-size:12px;font-weight:600;color:var(--accent)}

/* ── Evidence ── */
.evidence-section{margin-top:10px}
.evidence-list{display:flex;flex-direction:column;gap:6px;margin-bottom:8px}
.evidence-item{display:flex;align-items:center;gap:8px;padding:7px 10px;background:var(--surface2);border:1px solid var(--border);border-radius:6px;font-size:12.5px}
.ev-icon{font-size:15px;flex-shrink:0}
.ev-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ev-del{background:none;border:none;color:var(--danger);cursor:pointer;padding:2px 6px;border-radius:4px;font-size:13px}
.ev-del:hover{background:rgba(220,38,38,.1)}

/* ── Modal ── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;display:flex;align-items:center;justify-content:center}
.modal{background:var(--surface);border-radius:var(--radius);width:90%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:0 8px 32px rgba(0,0,0,.2)}
.modal-lg{max-width:680px}
.modal-header{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-header h3{font-size:15px;font-weight:600;margin:0}
.modal-close{background:none;border:none;font-size:20px;cursor:pointer;color:var(--text-muted);padding:0 4px}
.modal-body{padding:18px}
.modal-footer{padding:12px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

/* ── Radio Toggle ── */
.radio-toggle{display:flex;gap:16px}
.radio-toggle label{display:flex;align-items:center;gap:6px;cursor:pointer;font-size:13px}

/* ── Tabs ── */
.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:16px}
.tab-btn{padding:8px 18px;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;cursor:pointer;font-size:13.5px;color:var(--text-muted);font-weight:500;transition:all .15s}
.tab-btn:hover{color:var(--text)}
.tab-btn.active{color:var(--primary-light);border-bottom-color:var(--primary-light);font-weight:600}
.tab-content{display:none}
.tab-content.active{display:block}

/* ── Misc ── */
.page-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.page-header h1{font-size:20px;font-weight:700}
.semester-selector{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.alert{padding:10px 14px;border-radius:6px;margin-bottom:14px;font-size:13px}
.alert-error{background:rgba(220,38,38,.1);border:1px solid rgba(220,38,38,.3);color:#dc2626}
.alert-info{background:rgba(2,132,199,.1);border:1px solid rgba(2,132,199,.3);color:#0284c7}
.review-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.text-muted{color:var(--text-muted)}
.text-sm{font-size:12px}
.mt-2{margin-top:12px}
.mt-3{margin-top:20px}
.mb-2{margin-bottom:12px}
.mb-3{margin-bottom:20px}
.hidden{display:none!important}

/* ── Toast ── */
#toast-container{position:fixed;bottom:20px;right:20px;z-index:999;display:flex;flex-direction:column;gap:8px}
.toast{padding:10px 16px;border-radius:8px;color:#fff;font-size:13px;font-weight:500;box-shadow:0 4px 12px rgba(0,0,0,.2);animation:slideIn .2s ease;min-width:200px}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
.toast.info{background:var(--info)}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* ── Login ── */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg)}
.login-wrap{width:100%;max-width:380px;padding:20px}
.login-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:36px;box-shadow:0 4px 24px rgba(0,0,0,.08)}
.login-logo{text-align:center;margin-bottom:28px}
.login-icon{font-size:40px;margin-bottom:8px}
.login-logo h1{font-size:22px;font-weight:700;color:var(--primary-light)}
.login-logo p{font-size:13px;color:var(--text-muted);margin-top:4px}
.login-logo small{font-size:11px;color:var(--text-muted)}

/* ── Badge Counter (Feature 1) ── */
.badge-counter{display:inline-flex;align-items:center;gap:2px;background:var(--surface2);border:1px solid var(--border);border-radius:20px;padding:4px 12px;font-size:13px;font-weight:500}
.counter-filled{color:var(--accent);font-weight:700;font-size:15px}
.counter-total{color:var(--text-muted)}
.counter-label{color:var(--text-muted)}

/* ── Footer (Feature 7) ── */
.app-footer{margin-top:auto;padding:1rem 1.5rem;text-align:center;font-size:.75rem;color:var(--text-muted);border-top:1px solid var(--border)}
.app-footer a{color:var(--accent);text-decoration:none}
.app-footer a:hover{text-decoration:underline}

/* ── Responsive ── */
@media(max-width:768px){
  .sidebar{transform:translateX(-100%);width:var(--sidebar-w)!important}
  .sidebar.open{transform:translateX(0)}
  .sidebar-toggle{display:none}
  .main-wrap{margin-left:0!important}
  [data-sidebar="collapsed"] .main-wrap{margin-left:0!important}
  .hamburger{display:block}
  .form-row{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .review-grid{grid-template-columns:1fr}
  /* Reset collapsed state on mobile */
  [data-sidebar="collapsed"] .sidebar-brand-text,[data-sidebar="collapsed"] .nav-section,[data-sidebar="collapsed"] .nav-text,[data-sidebar="collapsed"] .sidebar-user-info{opacity:1;width:auto}
  [data-sidebar="collapsed"] .nav-item{padding:9px 16px}
}
@media(max-width:480px){
  .stats-grid{grid-template-columns:1fr}
  .page-main{padding:14px}
}