/* ============================================================
   CBT UKAI — Stylesheet gabungan (satu file untuk semua modul)
   Ditulis ulang: modern, konsisten, ringan.
   Konflik nama class generik diatasi dengan scope body:
   .page-landing / .page-auth / .page-app / .page-exam
   ============================================================ */

:root{
  --brand-1:#667eea;
  --brand-2:#764ba2;
  --brand-grad:linear-gradient(135deg,#667eea 0%,#764ba2 100%);
  --brand-soft:#eef0ff;
  --ink:#1f2333;
  --ink-2:#4b5163;
  --muted:#8a90a2;
  --bg:#f4f6fb;
  --surface:#ffffff;
  --line:#e8eaf3;
  --line-2:#eef0f7;
  --ok:#10b981; --ok-bg:#e7f8f1;
  --warn:#f59e0b; --warn-bg:#fef3e2;
  --danger:#ef4444; --danger-bg:#fdecec;
  --info:#3b82f6; --info-bg:#e8f1fe;
  --r:16px; --r-sm:10px; --r-lg:22px; --r-pill:999px;
  --sh-sm:0 1px 2px rgba(31,35,51,.06),0 1px 3px rgba(31,35,51,.05);
  --sh:0 6px 18px rgba(31,35,51,.08);
  --sh-lg:0 18px 45px rgba(76,66,140,.18);
  --ease:cubic-bezier(.4,0,.2,1);
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.25;font-weight:700;color:var(--ink)}
::selection{background:rgba(102,126,234,.22)}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}

/* ---------- AJAX top loader ---------- */
.ajax-loader{position:fixed;top:0;left:0;height:3px;width:0;z-index:9999;
  background:linear-gradient(90deg,#667eea,#764ba2,#a78bfa);
  box-shadow:0 0 12px rgba(118,75,162,.6);transition:width .25s var(--ease),opacity .35s;opacity:0}
.ajax-loader.on{opacity:1}

/* ======================================================
   APP NAVBAR (dashboard/paket/pembayaran/riwayat/profil)
   ====================================================== */
.app-header{position:sticky;top:0;z-index:900;background:var(--brand-grad);
  box-shadow:0 6px 22px rgba(76,66,140,.28)}
.app-nav{max-width:1200px;margin:0 auto;padding:0 20px;height:66px;
  display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:20px;letter-spacing:.2px}
.brand-logo{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,255,255,.18);backdrop-filter:blur(6px);font-size:18px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.25)}
.brand-name{white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{display:flex;align-items:center;gap:7px;color:rgba(255,255,255,.86);
  padding:9px 14px;border-radius:var(--r-pill);font-weight:600;font-size:14.5px;
  transition:background .2s,color .2s,transform .15s}
.nav-link .nav-ico{font-size:15px;opacity:.95}
.nav-link:hover{background:rgba(255,255,255,.16);color:#fff}
.nav-link.is-active{background:#fff;color:var(--brand-2);box-shadow:0 4px 12px rgba(0,0,0,.14)}
.nav-user{display:flex;align-items:center;gap:10px;margin-left:10px;padding-left:14px;
  border-left:1px solid rgba(255,255,255,.22)}
.nav-avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.2);color:#fff;font-weight:800;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.3)}
.nav-uname{color:#fff;font-weight:600;font-size:14px;max-width:140px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap}
.nav-logout{color:#fff;background:rgba(0,0,0,.14);padding:7px 14px;border-radius:var(--r-pill);
  font-weight:600;font-size:13.5px;transition:background .2s}
.nav-logout:hover{background:rgba(0,0,0,.28)}
.nav-toggle{display:none;margin-left:auto;width:44px;height:40px;border:none;cursor:pointer;
  background:rgba(255,255,255,.16);border-radius:11px;flex-direction:column;gap:4px;
  align-items:center;justify-content:center}
.nav-toggle span{width:20px;height:2px;background:#fff;border-radius:2px}

.app-main{max-width:1200px;margin:0 auto;padding:0;min-height:60vh;animation:fadeUp .35s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* Shared wide wrapper inside app pages */
.page-app .container{max-width:1200px;margin:0 auto;padding:26px 20px 60px}

/* ---------- Buttons (global) ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border:none;border-radius:12px;font-family:inherit;font-size:15px;
  font-weight:700;cursor:pointer;text-align:center;line-height:1.1;
  transition:transform .15s var(--ease),box-shadow .2s,filter .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 8px 20px rgba(102,126,234,.35)}
.btn-primary:hover{box-shadow:0 12px 26px rgba(102,126,234,.45)}
.btn-secondary{background:#eef0f7;color:var(--ink-2)}
.btn-secondary:hover{background:#e3e6f2}
.btn-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 8px 20px rgba(16,185,129,.32)}
.btn-warning{background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff;box-shadow:0 8px 20px rgba(245,158,11,.3)}
.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;box-shadow:0 8px 20px rgba(239,68,68,.3)}
.btn-outline{background:transparent;color:var(--brand-2);box-shadow:inset 0 0 0 2px var(--brand-1)}
.btn-outline:hover{background:var(--brand-1);color:#fff}
.btn-small,.btn-sm{padding:8px 14px;font-size:13px;border-radius:10px}
.btn-disabled,.btn:disabled{opacity:.55;cursor:not-allowed;filter:grayscale(.25);box-shadow:none}
.btn-disabled:hover,.btn:disabled:hover{transform:none}

/* ---------- Alerts ---------- */
.alert{padding:14px 16px;border-radius:12px;margin-bottom:18px;font-size:14.5px;font-weight:500;
  display:flex;gap:10px;align-items:flex-start;border:1px solid transparent}
.alert-error{background:var(--danger-bg);color:#b42318;border-color:#f7cfcf}
.alert-success{background:var(--ok-bg);color:#087443;border-color:#bdecd8}
.alert-error::before{content:"⚠️"}
.alert-success::before{content:"✅"}

/* ---------- Forms ---------- */
.form-group{margin-bottom:18px}
label{display:block;margin-bottom:7px;color:var(--ink-2);font-weight:600;font-size:14px}
input[type=text],input[type=email],input[type=password],input[type=tel],
input[type=number],select,textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);
  border-radius:12px;font-family:inherit;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand-1);
  box-shadow:0 0 0 4px rgba(102,126,234,.15)}
.required{color:var(--danger)}

/* ---------- Cards (generic) ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:24px;box-shadow:var(--sh-sm)}
.card-title{font-size:18px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.card-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);font-size:20px}

/* Section headings */
.section-title{font-size:22px;font-weight:800;margin:34px 0 18px;display:flex;align-items:center;gap:10px}
.page-title{text-align:center;margin:30px 0 26px}
.page-title h1{font-size:30px;margin-bottom:6px}
.page-title p{color:var(--muted)}
.page-header{margin:8px 0 22px}
.page-header h1{font-size:26px}
.page-subtitle,.subtitle{color:var(--muted);font-size:15px}
.back-btn{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.9);
  color:var(--brand-2);padding:9px 16px;border-radius:var(--r-pill);font-weight:600;
  box-shadow:var(--sh-sm);transition:transform .15s,box-shadow .2s}
.back-btn:hover{transform:translateX(-3px);box-shadow:var(--sh)}

/* Stat cards (dashboard / history / profile) */
.stats-cards,.stats-grid,.stats-section{display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;margin-bottom:8px}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--sh-sm);display:flex;align-items:center;gap:16px;
  transition:transform .18s,box-shadow .2s}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.stat-icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  font-size:24px;background:var(--brand-soft);flex-shrink:0}
.stat-info{display:flex;flex-direction:column}
.stat-number,.summary-number{font-size:26px;font-weight:800;color:var(--ink);line-height:1.1}
.stat-label{color:var(--muted);font-size:13.5px;font-weight:600}
.stat-item{text-align:center}
.stat-item h3{font-size:40px;color:var(--brand-1)}
.stat-item p{color:var(--muted)}

/* Empty states */
.empty-state{background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;box-shadow:var(--sh-sm)}
.empty-state-icon,.empty-icon{font-size:56px;margin-bottom:14px}
.empty-state h3{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--muted);max-width:440px;margin:0 auto 22px}

/* Status badges / pills (shared) */
.status-badge,.payment-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:700;letter-spacing:.2px;text-transform:uppercase}
.status-tersedia{background:var(--info-bg);color:#1d4ed8}
.status-berjalan{background:var(--warn-bg);color:#b45309}
.status-selesai{background:var(--ok-bg);color:#087443}
.status-paid,.status-success,.status-settlement,.payment-badge.success,.status-active{background:var(--ok-bg);color:#087443}
.status-pending,.payment-badge.pending{background:var(--warn-bg);color:#b45309}
.status-failed,.status-cancelled,.status-expired,.payment-badge.failed,.status-inactive{background:var(--danger-bg);color:#b42318}
.status-correct{background:var(--ok-bg);color:#087443}
.status-wrong{background:var(--danger-bg);color:#b42318}
.status-unanswered{background:#eef0f7;color:var(--muted)}

/* Tables (history / payment items) */
.history-table,.history-container{background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;box-shadow:var(--sh-sm);margin-top:6px}
table{width:100%;border-collapse:collapse}
thead th{background:#f7f8fc;color:var(--ink-2);text-align:left;font-size:12.5px;
  text-transform:uppercase;letter-spacing:.4px;padding:14px 16px;font-weight:700;
  border-bottom:1px solid var(--line)}
tbody td{padding:14px 16px;border-bottom:1px solid var(--line-2);font-size:14px;color:var(--ink-2)}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fafbff}
.items-table td,.items-table th{padding:11px 14px}
.total-row td{font-weight:800;color:var(--ink);background:#f7f8fc}

/* ======================================================
   DASHBOARD — paket & sesi
   ====================================================== */
.welcome-section{background:var(--brand-grad);color:#fff;border-radius:var(--r-lg);
  padding:30px 28px;margin:24px 0 8px;box-shadow:var(--sh-lg);position:relative;overflow:hidden}
.welcome-section::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;
  background:radial-gradient(circle,rgba(255,255,255,.25),transparent 70%)}
.welcome-section h1,.welcome-section h2{font-size:26px;margin-bottom:6px}
.welcome-section p{opacity:.92}
.warning-banner{background:var(--warn-bg);border:1px solid #f6d491;color:#92400e;
  border-radius:var(--r);padding:14px 18px;margin:18px 0;display:flex;gap:10px;align-items:center;font-weight:600}
.warning-banner::before{content:"⏳";font-size:20px}

.package-container{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;margin-bottom:24px;box-shadow:var(--sh-sm)}
.package-header-card{display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px;
  align-items:flex-start;padding-bottom:18px;border-bottom:1px solid var(--line-2);margin-bottom:20px}
.package-header-card h2,.package-header-card h3{font-size:20px}
.package-stats{display:flex;flex-wrap:wrap;gap:22px}
.package-stat-item{display:flex;align-items:center;gap:10px;font-size:14px}
.package-stat-item>span:first-child{font-size:22px}
.package-stat-item strong{display:block;font-size:16px;color:var(--ink)}
.package-stat-item span span,.package-stat-item div span{color:var(--muted);font-size:12.5px}

.sesi-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.sesi-card{background:linear-gradient(180deg,#fff,#fbfbff);border:1px solid var(--line);
  border-radius:var(--r);padding:18px;box-shadow:var(--sh-sm);transition:transform .18s,box-shadow .2s;
  display:flex;flex-direction:column;gap:12px}
.sesi-card:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.sesi-header{display:flex;justify-content:space-between;align-items:center}
.sesi-number{font-weight:800;font-size:16px}
.sesi-info p{font-size:13.5px;color:var(--ink-2);margin:2px 0}
.sesi-actions{margin-top:auto}
.sesi-actions .btn{width:100%}

/* summary numbers coloring (dashboard/review) */
.summary-score{color:var(--brand-2)}
.summary-correct,.summary-number.green,.green{color:var(--ok)}
.summary-wrong,.summary-number.orange,.orange{color:var(--danger)}
.summary-unanswered,.summary-number.blue,.blue{color:var(--info)}

/* ======================================================
   PACKAGES PAGE — grid + keranjang
   ====================================================== */
.page-app .packages-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:20px;margin-bottom:10px}
.package-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .25s;
  display:flex;flex-direction:column;position:relative;overflow:hidden}
.package-card::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:var(--brand-grad)}
.package-card:hover{transform:translateY(-6px);box-shadow:var(--sh-lg)}
.package-header{margin-bottom:14px}
.package-name{font-size:18px;font-weight:800;margin-bottom:6px}
.package-price{font-size:26px;font-weight:800;color:var(--brand-2)}
.package-details{list-style:none;margin:6px 0 18px;display:flex;flex-direction:column;gap:9px}
.package-details li{position:relative;padding-left:26px;color:var(--ink-2);font-size:14px}
.package-details li::before{content:"✓";position:absolute;left:0;top:0;width:18px;height:18px;
  background:var(--ok-bg);color:var(--ok);border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:800}
.quantity-control{display:flex;align-items:center;gap:10px;margin-bottom:14px;justify-content:center}
.quantity-btn{width:38px;height:38px;border:none;border-radius:11px;background:var(--brand-soft);
  color:var(--brand-2);font-size:20px;font-weight:800;cursor:pointer;transition:background .15s,transform .1s}
.quantity-btn:hover{background:#e0e3ff}
.quantity-btn:active{transform:scale(.94)}
.quantity-input{width:64px;text-align:center;padding:9px;font-weight:700}
.add-to-cart-btn{margin-top:auto;width:100%;padding:12px;border:none;border-radius:12px;
  background:var(--brand-grad);color:#fff;font-weight:700;font-size:14.5px;cursor:pointer;
  box-shadow:0 8px 18px rgba(102,126,234,.3);transition:transform .15s,box-shadow .2s}
.add-to-cart-btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(102,126,234,.42)}

.cart-sidebar{position:fixed;right:22px;bottom:22px;width:330px;max-height:72vh;overflow:auto;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-lg);z-index:600}
.cart-title{font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:space-between;
  margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line-2)}
.cart-count{background:var(--brand-grad);color:#fff;min-width:26px;height:26px;border-radius:var(--r-pill);
  display:inline-grid;place-items:center;font-size:13px;padding:0 8px}
.cart-items{display:flex;flex-direction:column;gap:12px}
.cart-item{background:#fafbff;border:1px solid var(--line-2);border-radius:12px;padding:12px}
.cart-item-name{font-weight:700;font-size:14px;margin-bottom:6px}
.cart-item-details{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--muted)}
.cart-item-price{color:var(--brand-2);font-weight:700}
.remove-item{background:var(--danger-bg);color:#b42318;border:none;padding:5px 10px;border-radius:8px;
  cursor:pointer;font-size:11px;font-weight:700;margin-top:8px;transition:background .15s}
.remove-item:hover{background:#f9d3d3}
.cart-total{border-top:2px solid var(--line);padding-top:14px;margin-top:14px}
.cart-total-label{display:flex;justify-content:space-between;font-size:14px;margin-bottom:6px;color:var(--ink-2)}
.cart-total-amount{display:flex;justify-content:space-between;font-size:20px;font-weight:800;color:var(--brand-2);margin-bottom:14px}
.checkout-btn{width:100%;padding:14px;background:linear-gradient(135deg,#10b981,#059669);color:#fff;
  border:none;border-radius:12px;font-size:15px;font-weight:700;cursor:pointer;
  box-shadow:0 8px 20px rgba(16,185,129,.32);transition:transform .15s,box-shadow .2s}
.checkout-btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(16,185,129,.42)}
.checkout-btn:disabled{background:#cfd4e0;box-shadow:none;cursor:not-allowed;transform:none}
.empty-cart{text-align:center;color:var(--muted);padding:22px 8px;font-size:14px}

/* ======================================================
   PAYMENT + HISTORY
   ====================================================== */
.content-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:22px;align-items:start}
.main-content{min-width:0}
.sidebar{position:sticky;top:88px}
.payment-info,.payment-details,.profile-card,.profile-info,.summary-card,.history-list,
.kategori-stats,.package-list,.card{background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);padding:22px;box-shadow:var(--sh-sm);margin-bottom:18px}
.info-row{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--line-2)}
.info-row:last-child{border-bottom:none}
.info-label{color:var(--muted);font-size:14px;font-weight:600}
.info-value{color:var(--ink);font-weight:700;font-size:14px;text-align:right}
.invoice-number{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:700;color:var(--brand-2)}
.amount{font-size:26px;font-weight:800;color:var(--brand-2)}
.action-buttons,.actions,.action-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px}
.action-buttons .btn{flex:1;min-width:150px}
.refresh-btn{display:inline-flex;align-items:center;gap:8px;background:var(--brand-soft);color:var(--brand-2);
  border:none;padding:10px 16px;border-radius:var(--r-pill);font-weight:700;cursor:pointer;transition:background .15s}
.refresh-btn:hover{background:#e0e3ff}
.summary-item{text-align:center;padding:10px}
.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:14px;margin-top:8px}

/* history list variant */
.history-list{padding:8px}
.history-item{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;align-items:center;
  padding:16px;border-bottom:1px solid var(--line-2)}
.history-item:last-child{border-bottom:none}
.history-header{display:flex;flex-direction:column;gap:4px}
.history-invoice{font-family:ui-monospace,Menlo,monospace;font-weight:700;color:var(--brand-2);font-size:14px}
.history-info,.history-date{color:var(--muted);font-size:13px}
.history-amount{font-size:18px;font-weight:800;color:var(--ink)}
.filter-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 20px}
.filter-tab{padding:9px 18px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
  color:var(--ink-2);font-weight:600;font-size:14px;cursor:pointer;transition:all .18s}
.filter-tab:hover{border-color:var(--brand-1);color:var(--brand-2)}
.filter-tab.active{background:var(--brand-grad);color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(102,126,234,.3)}

/* profile */
.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
.profile-header{display:flex;align-items:center;gap:16px;margin-bottom:18px}

/* ======================================================
   REVIEW — hasil & pembahasan
   ====================================================== */
.summary-card h2{margin-bottom:14px}
.kategori-stats{display:flex;flex-direction:column;gap:12px}
.kategori-item{display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:12px 14px;background:#fafbff;border:1px solid var(--line-2);border-radius:12px;font-size:14px}
.question-review{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--sh-sm);margin-bottom:16px;border-left:4px solid var(--line)}
.question-review.correct,.question-review.status-correct{border-left-color:var(--ok)}
.question-review.wrong,.question-review.status-wrong{border-left-color:var(--danger)}
.question-content,.question-text{font-size:15.5px;color:var(--ink);margin-bottom:16px;line-height:1.7}
.options-review{display:flex;flex-direction:column;gap:10px}
.option-review{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1.5px solid var(--line);
  border-radius:12px;font-size:14.5px;transition:background .15s}
.option-review.correct{background:var(--ok-bg);border-color:#bdecd8}
.option-review.wrong{background:var(--danger-bg);border-color:#f7cfcf}
.option-label{width:28px;height:28px;flex-shrink:0;border-radius:8px;display:grid;place-items:center;
  background:#eef0f7;font-weight:800;font-size:13px}
.option-review.correct .option-label{background:var(--ok);color:#fff}
.option-review.wrong .option-label{background:var(--danger);color:#fff}
.option-text{flex:1}
.pembahasan{margin-top:16px;padding:16px;background:var(--info-bg);border:1px solid #cfe0fd;
  border-radius:12px;font-size:14.5px;line-height:1.7}
.pembahasan strong{color:#1d4ed8}
.nav-legend,.legend-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2)}
.nav-legend{flex-wrap:wrap;gap:16px;margin:10px 0}
.legend-color{width:16px;height:16px;border-radius:5px;display:inline-block}

/* ======================================================
   AUTH (login / register)  — .page-auth
   ====================================================== */
.page-auth{min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:24px;background:var(--brand-grad);position:relative;overflow:hidden}
.page-auth::before,.page-auth::after{content:"";position:absolute;border-radius:50%;filter:blur(2px);opacity:.5}
.page-auth::before{width:420px;height:420px;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 70%);top:-120px;left:-100px}
.page-auth::after{width:520px;height:520px;background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%);bottom:-160px;right:-120px}
.page-auth .container{position:relative;z-index:2;background:#fff;padding:40px 38px;border-radius:24px;
  box-shadow:0 30px 70px rgba(30,20,70,.35);width:100%;max-width:460px;animation:fadeUp .4s var(--ease)}
.page-auth h2{text-align:center;font-size:26px;margin-bottom:6px}
.page-auth .subtitle{text-align:center;color:var(--muted);margin-bottom:26px;font-size:14.5px}
.page-auth .btn{width:100%;margin-top:6px}
.login-link{text-align:center;margin-top:22px;font-size:14px;color:var(--muted)}
.login-link a{color:var(--brand-2);font-weight:700}
.login-link a:hover{text-decoration:underline}

/* ======================================================
   LANDING  — .page-landing
   ====================================================== */
.page-landing{color:var(--ink)}
.page-landing .navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0;
  background:rgba(255,255,255,.08);backdrop-filter:blur(12px)}
.page-landing .nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;
  justify-content:space-between;align-items:center}
.page-landing .nav-logo{font-size:22px;font-weight:800;color:#fff}
.page-landing .nav-links{display:flex;gap:8px;align-items:center}
.page-landing .nav-links a{color:#fff;padding:9px 16px;border-radius:var(--r-pill);font-weight:600;transition:background .2s}
.page-landing .nav-links a:hover{background:rgba(255,255,255,.2)}
.hero{background:var(--brand-grad);color:#fff;min-height:100vh;display:flex;align-items:center;
  position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;opacity:.35;
  background:radial-gradient(circle at 20% 30%,rgba(255,255,255,.18),transparent 40%),
             radial-gradient(circle at 80% 70%,rgba(255,255,255,.14),transparent 40%)}
.page-landing .container{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2}
.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:90px 0}
.hero-text h1{font-size:46px;font-weight:800;margin-bottom:18px;line-height:1.15}
.hero-text p{font-size:19px;opacity:.94;margin-bottom:28px}
.cta-buttons{display:flex;gap:16px;flex-wrap:wrap}
.page-landing .btn{padding:15px 30px;min-width:160px}
.page-landing .btn-primary{background:#fff;color:var(--brand-2);box-shadow:0 12px 30px rgba(0,0,0,.2)}
.page-landing .btn-outline{color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.8)}
.page-landing .btn-outline:hover{background:#fff;color:var(--brand-2)}
.feature-showcase{background:rgba(255,255,255,.12);padding:32px;border-radius:22px;backdrop-filter:blur(10px);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18)}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.feature-item{display:flex;align-items:center;gap:14px;padding:16px;background:rgba(255,255,255,.12);border-radius:14px}
.feature-icon{width:50px;height:50px;background:rgba(255,255,255,.2);border-radius:12px;display:grid;place-items:center;font-size:24px;flex-shrink:0}
.feature-text h4{font-size:15px;margin-bottom:3px}
.feature-text p{font-size:13px;opacity:.85}
.stats-section{padding:70px 0;background:#fff}
.page-landing .stats-grid{max-width:1200px;margin:0 auto;padding:0 20px;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));text-align:center;gap:30px}
.features-section{padding:80px 0;background:var(--bg)}
.section-header{text-align:center;max-width:640px;margin:0 auto 54px;padding:0 20px}
.section-header h2{font-size:34px;margin-bottom:12px}
.section-header p{font-size:17px;color:var(--muted)}
.features-detailed{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:26px}
.feature-card{background:#fff;text-align:center;padding:32px 26px;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--sh-sm);transition:transform .25s,box-shadow .3s}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--sh-lg)}
.feature-card h3{font-size:20px;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:14.5px}
.feature-card-icon{width:76px;height:76px;margin:0 auto 18px;border-radius:20px;background:var(--brand-grad);
  display:grid;place-items:center;font-size:34px;box-shadow:0 12px 26px rgba(102,126,234,.35)}
.cta-section{background:var(--brand-grad);color:#fff;padding:84px 0;text-align:center}
.cta-content{max-width:640px;margin:0 auto;padding:0 20px}
.cta-content h2{font-size:34px;margin-bottom:12px}
.cta-content p{font-size:17px;opacity:.92;margin-bottom:26px}
.pricing-highlight{background:rgba(255,255,255,.12);padding:30px;border-radius:20px;display:inline-block;margin:16px 0 26px;backdrop-filter:blur(8px)}
.price{font-size:46px;font-weight:800;margin-bottom:8px}
.price-desc{opacity:.85}
.footer{background:#1b2130;color:#c7ccd9;padding:40px 0;text-align:center}
.footer p{margin-bottom:8px}
.footer a{color:var(--brand-1)}

/* ======================================================
   EXAM  — .page-exam (mode fokus)
   ====================================================== */
.page-exam{background:#eef1f8}
.test-header{position:sticky;top:0;z-index:800;background:var(--brand-grad);color:#fff;
  padding:14px 20px;box-shadow:0 6px 20px rgba(76,66,140,.3);display:flex;justify-content:space-between;
  align-items:center;flex-wrap:wrap;gap:12px}
.test-header h1,.test-header h2{font-size:18px}
.timer{background:rgba(0,0,0,.2);padding:10px 18px;border-radius:var(--r-pill);font-weight:800;
  font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:1px}
.timer.warning{background:var(--danger);animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.6}}
.test-container,.page-exam .container{max-width:1100px;margin:22px auto;padding:0 20px;
  display:grid;grid-template-columns:1fr 300px;gap:22px;align-items:start}
.question-area,.question-content{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh);min-width:0}
.question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;
  padding-bottom:14px;border-bottom:1px solid var(--line-2)}
.question-number{font-weight:800;color:var(--brand-2);font-size:15px}
.question-text{font-size:17px;line-height:1.75;color:var(--ink);margin-bottom:24px}
.options{display:flex;flex-direction:column;gap:12px}
.option{display:flex;gap:14px;align-items:flex-start;padding:15px 16px;border:2px solid var(--line);
  border-radius:14px;cursor:pointer;transition:border-color .15s,background .15s,transform .1s;background:#fff}
.option:hover{border-color:var(--brand-1);background:#fafbff}
.option.selected{border-color:var(--brand-1);background:var(--brand-soft);box-shadow:0 6px 16px rgba(102,126,234,.18)}
.option input[type=radio]{margin-top:3px;width:18px;height:18px;accent-color:var(--brand-1);flex-shrink:0}
.option-text{flex:1;font-size:15px;line-height:1.6}
.question-actions{display:flex;justify-content:space-between;gap:12px;margin-top:26px}

.question-nav{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;
  box-shadow:var(--sh-sm);position:sticky;top:88px}
.nav-title{font-weight:800;font-size:15px;margin-bottom:14px}
.nav-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:16px}
.nav-item{aspect-ratio:1;display:grid;place-items:center;border-radius:10px;border:1.5px solid var(--line);
  background:#fff;font-weight:700;font-size:14px;cursor:pointer;transition:all .15s;color:var(--ink-2)}
.nav-item:hover{border-color:var(--brand-1)}
.nav-item.answered{background:var(--ok-bg);border-color:#bdecd8;color:#087443}
.nav-item.current{background:var(--brand-grad);color:#fff;border-color:transparent;
  box-shadow:0 6px 14px rgba(102,126,234,.4);transform:scale(1.05)}

/* modal (submit test) */
.submit-modal{display:none;position:fixed;inset:0;background:rgba(20,16,45,.55);
  backdrop-filter:blur(4px);z-index:1200;align-items:center;justify-content:center;padding:20px}
.modal-content{background:#fff;border-radius:22px;padding:32px;max-width:440px;width:100%;
  box-shadow:0 30px 70px rgba(0,0,0,.35);animation:fadeUp .3s var(--ease)}
.modal-content h3{font-size:21px;margin-bottom:12px}
.modal-content p{color:var(--ink-2);margin-bottom:10px}
.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:22px}

/* ======================================================
   RESPONSIVE
   ====================================================== */
@media (max-width:960px){
  .content-grid{grid-template-columns:1fr}
  .sidebar{position:static}
  .profile-grid{grid-template-columns:1fr}
  .test-container,.page-exam .container{grid-template-columns:1fr}
  .question-nav{position:static}
  .hero-content{grid-template-columns:1fr;text-align:center;padding:110px 0 60px}
  .feature-showcase{max-width:520px;margin:0 auto}
}
@media (max-width:720px){
  .nav-toggle{display:flex}
  .nav-menu{position:absolute;top:66px;left:0;right:0;background:var(--brand-2);
    flex-direction:column;align-items:stretch;gap:4px;padding:14px 16px;margin:0;
    box-shadow:0 20px 40px rgba(0,0,0,.3);display:none}
  #app-nav.is-open .nav-menu{display:flex}
  .nav-user{border-left:none;border-top:1px solid rgba(255,255,255,.2);padding:12px 0 0;margin:8px 0 0}
  .nav-uname{max-width:none}
  .hero-text h1{font-size:34px}
  .feature-grid{grid-template-columns:1fr}
  .cart-sidebar{position:static;width:auto;max-height:none;margin-top:22px}
  .action-buttons .btn{min-width:0}
  .page-auth .container{padding:30px 22px}
}
@media (max-width:420px){
  .app-nav{gap:10px;padding:0 14px}
  .brand-name{display:none}
  .stat-number,.summary-number{font-size:22px}
}