/* ==========================================================
   JibuPesa Design System v2
   Signature: engraved banknote guilloché texture (the fine
   concentric security-print rings on a KES note) paired with
   the ticket-stub / confirmation-slip card language — the
   two things a Kenyan user associates with "real money moving".
   Type: Bricolage Grotesque (display) + Inter (body)
         + IBM Plex Mono (amounts, codes, data)
   ========================================================== */

   @import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,600;12..96,700;12..96,800&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500;600&display=swap');

   :root {
       --ink: #12182B;
       --ink-2: #222C46;
       --ink-soft: #4B5573;
   
       --marigold: #E8A93D;
       --marigold-deep: #A66A0E;
       --marigold-bg: #FFF3DC;
   
       --paper: #FBF6EA;
       --paper-dim: #F1E7CE;
       --card: #FFFDF7;
   
       --leaf: #1E7A52;
       --leaf-bg: #E2F3EA;
       --coral: #C6473F;
       --coral-bg: #FBEAE8;
       --slate: #6B7290;
       --border: #E4D6B4;
   
       --font-display: 'Bricolage Grotesque', sans-serif;
       --font-body: 'Inter', sans-serif;
       --font-mono: 'IBM Plex Mono', monospace;
   
       --radius: 16px;
       --radius-sm: 10px;
       --shadow-card: 0 1px 0 var(--border), 0 10px 24px -14px rgba(18, 24, 43, 0.28);
       --shadow-lift: 0 1px 0 var(--border), 0 16px 32px -16px rgba(18, 24, 43, 0.34);
   
       /* category accent rotation for task stubs */
       --cat-a: #C6473F;
       --cat-b: #1E7A52;
       --cat-c: #2E5FA3;
       --cat-d: #A66A0E;
       --cat-e: #7A4FB0;
   }
   
   * { box-sizing: border-box; }
   
   @media (prefers-reduced-motion: reduce) {
       *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
   }
   
   body {
       margin: 0;
       background: var(--paper);
       color: var(--ink);
       font-family: var(--font-body);
       line-height: 1.5;
       -webkit-font-smoothing: antialiased;
   }
   
   h1, h2, h3 { font-family: var(--font-display); margin: 0 0 0.4em; letter-spacing: -0.01em; font-weight: 700; }
   
   a { color: var(--ink); }
   
   :focus-visible { outline: 2.5px solid var(--marigold-deep); outline-offset: 2px; }
   
   /* ---------------- Auth pages ---------------- */
   .auth-page {
       display: flex;
       align-items: center;
       justify-content: center;
       min-height: 100vh;
       padding: 24px;
       background:
           radial-gradient(circle at 12% 18%, rgba(232,169,61,0.14), transparent 42%),
           radial-gradient(circle at 88% 82%, rgba(30,122,82,0.10), transparent 42%),
           var(--paper);
   }
   
   .auth-card {
       width: 100%;
       max-width: 400px;
       background: var(--card);
       border: 1px solid var(--border);
       border-radius: 20px;
       padding: 32px 28px;
       box-shadow: var(--shadow-card);
   }
   
   .brand { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
   .brand h1 { font-size: 1.55rem; }
   .brand-mark {
       display: inline-flex; align-items: center; justify-content: center;
       width: 36px; height: 36px; border-radius: 10px;
       background: linear-gradient(150deg, var(--marigold), var(--marigold-deep));
       color: var(--ink); font-family: var(--font-display); font-weight: 800; font-size: 1.15rem;
       box-shadow: 0 3px 0 rgba(0,0,0,0.12);
   }
   .brand-sm { display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-weight: 700; text-decoration: none; color: var(--ink); }
   .brand-sm .brand-mark { width: 27px; height: 27px; font-size: 0.9rem; border-radius: 7px; }
   
   .tagline { color: var(--slate); margin-bottom: 22px; font-size: 0.95rem; }
   
   form label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 14px; color: var(--ink-soft); }
   form input[type="text"], form input[type="tel"], form input[type="password"], form input[type="number"] {
       display: block; width: 100%; margin-top: 6px; padding: 12px 14px;
       border: 1.5px solid var(--border); border-radius: 10px;
       font-family: var(--font-body); font-size: 0.95rem; background: var(--paper);
       color: var(--ink);
   }
   form input:focus { outline: none; border-color: var(--marigold); box-shadow: 0 0 0 3px rgba(232,169,61,0.28); }
   .optional { color: var(--slate); font-weight: 400; }
   
   .btn-primary {
       display: inline-block; width: 100%; text-align: center;
       background: var(--ink); color: #fff; border: none;
       padding: 13px 18px; border-radius: 10px; font-family: var(--font-display);
       font-weight: 700; font-size: 0.95rem; cursor: pointer; text-decoration: none;
       transition: transform 0.12s ease, background 0.15s ease;
   }
   .btn-primary:hover { background: var(--ink-2); }
   .btn-primary:active { transform: scale(0.98); }
   .btn-disabled { opacity: 0.4; pointer-events: none; }
   
   .btn-small {
       background: var(--marigold); color: var(--ink); border: none;
       padding: 9px 15px; border-radius: 8px; font-family: var(--font-display);
       font-weight: 700; font-size: 0.82rem; text-decoration: none; white-space: nowrap;
       cursor: pointer; transition: transform 0.12s ease, box-shadow 0.12s ease;
       box-shadow: 0 2px 0 var(--marigold-deep);
   }
   .btn-small:hover { transform: translateY(-1px); }
   .btn-small:active { transform: translateY(1px); box-shadow: 0 1px 0 var(--marigold-deep); }
   
   .btn-link { background: none; border: none; color: var(--slate); font-size: 0.85rem; text-decoration: underline; cursor: pointer; padding: 0; }
   
   .inline-form { text-align: center; margin-top: 10px; }
   
   .fine-print { font-size: 0.78rem; color: var(--slate); margin-top: 16px; text-align: center; }
   .switch-link { font-size: 0.88rem; text-align: center; margin-top: 18px; color: var(--slate); }
   .switch-link a { color: var(--marigold-deep); font-weight: 600; text-decoration: none; }
   
   .alert { padding: 12px 14px; border-radius: 10px; font-size: 0.85rem; margin-bottom: 16px; }
   .alert ul { margin: 0; padding-left: 18px; }
   .alert-error { background: var(--coral-bg); color: #8A2323; }
   .alert-success { background: var(--leaf-bg); color: var(--leaf); }
   .alert-info { background: var(--marigold-bg); color: var(--marigold-deep); }
   
   /* ---------------- App shell ---------------- */
   .app-page { background: var(--paper); min-height: 100vh; }
   
   .topnav {
       display: flex; align-items: center; justify-content: space-between;
       padding: 16px 20px; background: var(--card); border-bottom: 1px solid var(--border);
       position: sticky; top: 0; z-index: 10;
   }
   .topnav nav { display: flex; gap: 18px; align-items: center; font-size: 0.88rem; font-weight: 600; }
   .topnav nav a { text-decoration: none; color: var(--slate); transition: color 0.12s ease; }
   .topnav nav a:hover { color: var(--ink); }
   .nav-logout { color: var(--coral) !important; }
   
   .container { max-width: 880px; margin: 0 auto; padding: 24px 20px 60px; }
   .container.narrow { max-width: 520px; }
   
   .back-link { display: inline-block; margin-bottom: 16px; font-size: 0.85rem; color: var(--slate); text-decoration: none; }
   
   /* ---------------- Guilloché engraving texture (signature) ---------------- */
   .engraved {
       background-color: var(--ink);
       background-image:
           radial-gradient(circle at 82% 22%, rgba(232,169,61,0.16), transparent 38%),
           repeating-radial-gradient(circle at 14% 34%, rgba(255,255,255,0.05) 0px, rgba(255,255,255,0.05) 1px, transparent 1px, transparent 4px),
           repeating-radial-gradient(circle at 88% 78%, rgba(255,255,255,0.045) 0px, rgba(255,255,255,0.045) 1px, transparent 1px, transparent 5px),
           linear-gradient(150deg, var(--ink) 0%, var(--ink-2) 100%);
       color: #fff;
   }
   
   /* ---------------- Dashboard hero ---------------- */
   .hero-band {
       border-radius: 22px;
       padding: 26px 24px 22px;
       margin-bottom: 22px;
       position: relative;
       overflow: hidden;
   }
   .hero-band::after {
       content: "";
       position: absolute; inset: 0;
       border: 1px solid rgba(255,255,255,0.08);
       border-radius: inherit;
       pointer-events: none;
   }
   .hero-top {
       display: flex; align-items: center; justify-content: space-between;
       gap: 16px; flex-wrap: wrap; margin-bottom: 20px;
   }
   .greeting-identity {
       display: flex; align-items: center; gap: 12px; text-decoration: none; color: #fff;
   }
   .avatar {
       width: 50px; height: 50px; border-radius: 50%;
       background: linear-gradient(150deg, var(--marigold), var(--marigold-deep));
       color: var(--ink); font-family: var(--font-display); font-weight: 800; font-size: 1.05rem;
       display: flex; align-items: center; justify-content: center; flex-shrink: 0;
       box-shadow: 0 0 0 3px rgba(255,255,255,0.16), 0 0 0 1px rgba(0,0,0,0.15);
   }
   .greeting-text { display: flex; flex-direction: column; }
   .greeting-name { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; }
   .greeting-sub { font-size: 0.78rem; color: rgba(255,255,255,0.62); }
   .greeting-identity:hover .greeting-sub { color: var(--marigold); }
   
   .referral-chip {
       display: flex; align-items: center; gap: 10px;
       background: rgba(255,255,255,0.08); border: 1.5px dashed rgba(232,169,61,0.55);
       border-radius: 10px; padding: 9px 14px; backdrop-filter: blur(2px);
   }
   .referral-chip-label { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; color: rgba(255,255,255,0.55); }
   .referral-chip-code { font-family: var(--font-mono); font-weight: 600; letter-spacing: 1.5px; color: var(--marigold); }
   
   .hero-balance-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
   .hero-balance-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.55); margin-bottom: 6px; }
   .hero-balance-value { font-family: var(--font-mono); font-size: 2.1rem; font-weight: 600; letter-spacing: -0.01em; }
   .hero-mini-stats { display: flex; gap: 22px; }
   .hero-mini-stat { text-align: right; }
   .hero-mini-stat-value { display: block; font-family: var(--font-mono); font-weight: 600; font-size: 1.05rem; }
   .hero-mini-stat-label { font-size: 0.68rem; color: rgba(255,255,255,0.55); text-transform: uppercase; letter-spacing: 0.05em; }
   
   @keyframes flamePulse {
       0%, 100% { transform: scale(1); }
       50% { transform: scale(1.14); }
   }
   .streak-flame { display: inline-block; animation: flamePulse 1.8s ease-in-out infinite; }
   
   /* ---------------- Stats (legacy stat-card, still used elsewhere) ---------------- */
   .hero-stats, .wallet-summary {
       display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
       gap: 12px; margin-bottom: 32px;
   }
   .wallet-summary { grid-template-columns: 1fr; max-width: 360px; text-align: center; gap: 10px; }
   
   .stat-card {
       background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
       padding: 16px 18px;
   }
   .stat-card.highlight { background: var(--ink); color: #fff; border-color: var(--ink); }
   .stat-label { display: block; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--slate); margin-bottom: 6px; }
   .stat-card.highlight .stat-label { color: rgba(255,255,255,0.65); }
   .stat-value { font-family: var(--font-mono); font-size: 1.35rem; font-weight: 600; }
   
   /* ---------------- Task cards (ticket-stub signature) ---------------- */
   .tasks-section h2 { font-size: 1.25rem; }
   .section-sub { color: var(--slate); font-size: 0.88rem; margin-top: -6px; margin-bottom: 20px; }
   
   .task-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
   
   @keyframes stubIn {
       from { opacity: 0; transform: translateY(8px); }
       to { opacity: 1; transform: translateY(0); }
   }
   
   .task-card {
       position: relative;
       background: var(--card);
       border: 1.5px dashed var(--border);
       border-radius: 12px;
       padding: 18px 18px 16px;
       border-top: 4px solid var(--cat-a);
       box-shadow: var(--shadow-card);
       transition: transform 0.15s ease, box-shadow 0.15s ease;
       animation: stubIn 0.4s ease backwards;
       background-image:
           radial-gradient(circle 7px at 0 50%, var(--paper) 7px, transparent 7.5px),
           radial-gradient(circle 7px at 100% 50%, var(--paper) 7px, transparent 7.5px);
   }
   .task-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
   .task-card.task-cat-a { border-top-color: var(--cat-a); }
   .task-card.task-cat-b { border-top-color: var(--cat-b); }
   .task-card.task-cat-c { border-top-color: var(--cat-c); }
   .task-card.task-cat-d { border-top-color: var(--cat-d); }
   .task-card.task-cat-e { border-top-color: var(--cat-e); }
   .task-card.task-pending { border-color: var(--marigold); }
   .task-card.task-done { opacity: 0.78; }
   .task-card.task-correct { border-color: var(--leaf); border-style: solid; }
   .task-card.task-incorrect { border-color: var(--border); }
   
   .task-grid .task-card:nth-child(1) { animation-delay: 0.02s; }
   .task-grid .task-card:nth-child(2) { animation-delay: 0.07s; }
   .task-grid .task-card:nth-child(3) { animation-delay: 0.12s; }
   .task-grid .task-card:nth-child(4) { animation-delay: 0.17s; }
   .task-grid .task-card:nth-child(5) { animation-delay: 0.22s; }
   .task-grid .task-card:nth-child(n+6) { animation-delay: 0.26s; }
   
   .task-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
   .task-slot { font-family: var(--font-mono); font-weight: 600; font-size: 0.8rem; color: var(--marigold-deep); }
   .task-category { font-size: 0.72rem; color: var(--slate); text-transform: uppercase; letter-spacing: 0.04em; }
   
   .task-question { font-size: 0.95rem; font-weight: 500; margin: 0 0 16px; min-height: 44px; }
   
   .task-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
   .task-reward { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-soft); }
   
   .badge { font-size: 0.78rem; font-weight: 600; padding: 5px 10px; border-radius: 20px; }
   .badge-success { background: var(--leaf-bg); color: var(--leaf); }
   .badge-muted { background: var(--paper-dim); color: var(--slate); }
   
   /* ---------------- Question page ---------------- */
   .question-card {
       background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 28px;
       box-shadow: var(--shadow-card);
   }
   .question-text { font-size: 1.15rem; margin-bottom: 20px; }
   .options-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 22px; }
   .option-item {
       display: flex; align-items: center; gap: 12px;
       border: 1.5px solid var(--border); border-radius: 10px; padding: 12px 14px;
       cursor: pointer; font-size: 0.92rem; transition: border-color 0.15s ease, background 0.15s ease;
   }
   .option-item:hover { border-color: var(--marigold); background: var(--marigold-bg); }
   .option-item input { accent-color: var(--marigold); }
   
   /* ---------------- Result page ---------------- */
   .result-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 36px 28px; text-align: center; box-shadow: var(--shadow-card); }
   .result-icon {
       width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
       font-size: 1.6rem; font-weight: 700; margin: 0 auto 14px;
   }
   .result-correct .result-icon { background: var(--leaf-bg); color: var(--leaf); }
   .result-incorrect .result-icon { background: var(--coral-bg); color: var(--coral); }
   .result-amount { font-family: var(--font-mono); font-size: 1.6rem; font-weight: 600; color: var(--leaf); margin: 6px 0; }
   .remaining-note { color: var(--slate); font-size: 0.88rem; margin: 18px 0; }
   
   /* ---------------- Wallet ---------------- */
   .tx-list { display: flex; flex-direction: column; gap: 1px; background: var(--border); border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
   .tx-row { display: flex; justify-content: space-between; align-items: center; background: var(--card); padding: 14px 16px; }
   .tx-desc { display: block; font-weight: 500; font-size: 0.9rem; }
   .tx-date { display: block; font-size: 0.76rem; color: var(--slate); margin-top: 2px; }
   .tx-amount { font-family: var(--font-mono); font-weight: 600; font-size: 0.92rem; }
   .tx-amount.positive { color: var(--leaf); }
   .tx-amount.negative { color: var(--coral); }
   
   @media (max-width: 480px) {
       .auth-card { padding: 26px 20px; }
       .hero-stats { grid-template-columns: 1fr 1fr; }
       .hero-band { padding: 22px 18px 18px; }
       .hero-balance-value { font-size: 1.7rem; }
       .hero-mini-stats { gap: 16px; }
   }
   
   /* ---------------- Profile page ---------------- */
   .profile-hero {
       border-radius: 20px;
       padding: 34px 24px 28px;
       text-align: center;
       margin-bottom: 22px;
       position: relative;
   }
   .profile-avatar-ring {
       width: 84px; height: 84px; border-radius: 50%; margin: 0 auto 16px;
       display: flex; align-items: center; justify-content: center;
       background: linear-gradient(150deg, var(--marigold), var(--marigold-deep));
       box-shadow: 0 0 0 4px rgba(255,255,255,0.14), 0 0 0 1px rgba(0,0,0,0.2), 0 10px 26px -10px rgba(0,0,0,0.5);
   }
   .profile-avatar {
       width: 100%; height: 100%; border-radius: 50%;
       color: var(--ink); font-family: var(--font-display); font-weight: 800; font-size: 1.6rem;
       display: flex; align-items: center; justify-content: center;
   }
   .profile-name { font-size: 1.35rem; color: #fff; }
   .profile-meta { color: rgba(255,255,255,0.6); font-size: 0.88rem; margin-top: 2px; }
   
   .profile-stats {
       display: flex; justify-content: center; gap: 30px; margin-top: 26px;
       padding-top: 20px; border-top: 1px dashed rgba(255,255,255,0.22);
   }
   .profile-stats > div { display: flex; flex-direction: column; align-items: center; }
   .profile-stat-value { font-family: var(--font-mono); font-weight: 600; font-size: 1.08rem; color: #fff; }
   .profile-stat-label { font-size: 0.7rem; color: rgba(255,255,255,0.55); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 4px; }
   
   .referral-card {
       background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 24px;
       box-shadow: var(--shadow-card);
   }
   .referral-card h3 { font-size: 1.05rem; }
   
   /* Referral code presented as a tear-away voucher stub */
   .voucher {
       position: relative;
       display: flex; align-items: center; justify-content: space-between;
       background: var(--paper);
       border: 1.5px dashed var(--marigold-deep);
       border-radius: 12px;
       padding: 16px 20px;
       margin: 16px 0 14px;
       background-image:
           radial-gradient(circle 8px at 0 50%, var(--card) 8px, transparent 8.5px),
           radial-gradient(circle 8px at 100% 50%, var(--card) 8px, transparent 8.5px);
   }
   .voucher::before {
       content: "";
       position: absolute; left: 58px; right: 58px; top: 0; bottom: 0;
       border-left: 1.5px dashed var(--border);
       right: auto; width: 0;
   }
   .voucher-code {
       font-family: var(--font-mono); font-size: 1.45rem; font-weight: 600;
       letter-spacing: 3px; color: var(--ink);
   }
   .voucher-label { display: block; font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--slate); margin-bottom: 4px; }
   
   .referral-link-row { display: flex; gap: 8px; margin-bottom: 6px; }
   .referral-link-row input {
       flex: 1; padding: 10px 12px; border: 1.5px solid var(--border); border-radius: 8px;
       font-size: 0.8rem; color: var(--slate); background: var(--paper); font-family: var(--font-mono);
   }
   
   .copy-notice { color: var(--leaf); font-size: 0.82rem; font-weight: 600; margin: 4px 0 0; }
   
   .referral-summary {
       margin-top: 18px; padding: 13px 14px; background: var(--leaf-bg); color: var(--leaf);
       border-radius: 10px; font-size: 0.88rem; font-weight: 500;
   }