/* AILO App Styles — mobile-first */
:root{
  --bg:#FAFAF7;--card:#FFF;--border:#E8E6DE;
  --t0:#1A1915;--t1:#3D3B33;--t2:#6B6960;--t3:#9B998F;
  --accent:#C8923A;--al:#FDF6EC;--ah:#A87A2E;
  --green:#2D7A4F;--gl:#EAF5EE;--sbg:#F5F4EF;
  --nb:rgba(250,250,247,.92);
  --red:#C0392B;--rl:#FDECEA;
}
[data-theme="dark"]{
  --bg:#121110;--card:#1C1B19;--border:#2A2925;
  --t0:#E8E6DE;--t1:#C8C6BD;--t2:#9B998F;--t3:#6B6960;
  --accent:#D4A04A;--al:#2A2318;--ah:#E0B060;
  --green:#3D9A65;--gl:#1A2A1F;--sbg:#1A1918;
  --nb:rgba(18,17,16,.92);
  --red:#E74C3C;--rl:#2A1A18;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Plus Jakarta Sans',sans-serif;
  background:var(--bg);color:var(--t0);
  min-height:100dvh;display:flex;flex-direction:column;align-items:center;
  -webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;
  transition:background .3s,color .3s;
}

/* Screens */
.scr{display:none;width:100%;max-width:520px;min-height:100dvh;padding:0 20px;flex-direction:column;position:relative}
.scr.on{display:flex}

/* Top controls */
.top-ctrl{display:flex;gap:6px;position:absolute;right:20px;top:14px;z-index:11}
.tc-btn{height:32px;border:1px solid var(--border);border-radius:8px;background:var(--card);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s,background .3s;padding:0 10px}
.tc-btn:hover{border-color:var(--accent)}
.tc-btn svg{width:15px;height:15px;stroke:var(--t2);fill:none;stroke-width:2}
.tc-lang{font-size:11px;font-weight:700;color:var(--t2);letter-spacing:.5px}
.ts{display:block}[data-theme="dark"] .ts{display:none}
.tm{display:none}[data-theme="dark"] .tm{display:block}

/* Top bar / progress */
.top{padding:14px 0 0;position:sticky;top:0;background:var(--nb);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);z-index:10;transition:background .3s}
.top-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.top-label{font-size:13px;font-weight:600;color:var(--t2)}
.top-count{font-size:12px;color:var(--t3)}
.bar{width:100%;height:10px;background:#EEEEE8;border-radius:5px;overflow:hidden;margin-bottom:12px}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),#E0A850);border-radius:5px;transition:width .8s}

/* Buttons */
.btn{width:100%;padding:16px;border:none;border-radius:14px;font-size:16px;font-weight:700;font-family:inherit;cursor:pointer;transition:all .2s;text-align:center;display:block}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-a{background:var(--accent);color:#fff}
.btn-a:hover:not(:disabled){background:var(--ah)}
.btn-a:active{transform:scale(.98)}
.btn-g{background:var(--green);color:#fff}
.btn-g:hover:not(:disabled){background:#246B40}
.btn-o{background:none;color:var(--t2);border:1px solid var(--border)}
.btn-o:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.btn+.btn{margin-top:10px}

/* Login screen */
.login{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:40px 0}
.logo{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.logo-m{width:44px;height:44px;background:var(--accent);border-radius:11px;display:flex;align-items:center;justify-content:center}
.logo-m svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:2}
.logo-t{font-size:28px;font-weight:800}
.login-sub{font-size:14px;color:var(--t3);margin-bottom:40px}
.login-h{font-size:26px;font-weight:800;line-height:1.35;margin-bottom:10px}
.login-h em{color:var(--accent);font-style:italic}
.login-p{font-size:15px;color:var(--t2);line-height:1.6;margin-bottom:32px;max-width:360px}

/* Email input */
.email-wrap{width:100%;max-width:320px;margin-bottom:12px}
.email-input{
  width:100%;padding:16px 18px;border:2px solid var(--border);border-radius:14px;
  font-size:17px;font-family:inherit;background:var(--card);color:var(--t0);
  outline:none;transition:border-color .2s;
}
.email-input:focus{border-color:var(--accent)}
.email-input::placeholder{color:var(--t3)}

/* Magic sent */
.magic-sent{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:40px 0}
.magic-icon{width:80px;height:80px;border-radius:50%;background:var(--al);display:flex;align-items:center;justify-content:center;margin:0 auto 24px}
.magic-icon svg{width:40px;height:40px;stroke:var(--accent);fill:none;stroke-width:1.5}
.magic-h{font-size:24px;font-weight:800;margin-bottom:10px}
.magic-p{font-size:16px;color:var(--t2);line-height:1.7;max-width:300px}

/* Audience */
.aud{flex:1;display:flex;flex-direction:column;justify-content:center;text-align:center;padding:40px 0}
.aud h2{font-size:24px;font-weight:800;margin-bottom:8px}
.aud>p{font-size:15px;color:var(--t2);margin-bottom:28px}
.aud-c{
  background:var(--card);border:2px solid var(--border);border-radius:16px;
  padding:22px 20px;margin-bottom:10px;cursor:pointer;text-align:left;
  transition:all .2s;display:flex;align-items:center;gap:16px;
}
.aud-c:hover{border-color:var(--accent)}
.aud-c.selected{border-color:var(--accent);background:var(--al)}
.aud-c:active{transform:scale(.98)}
.aud-c h3{font-size:16px;font-weight:700;margin-bottom:4px}
.aud-c p{font-size:14px;color:var(--t2);margin:0;line-height:1.5}
.aud-icon{width:44px;height:44px;border-radius:11px;background:var(--al);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.aud-icon svg{width:22px;height:22px;stroke:var(--accent);fill:none;stroke-width:2}

/* Dashboard */
.dash-hi{font-size:22px;font-weight:400;padding-top:20px;margin-bottom:4px}
.dash-hi em{color:var(--accent);font-style:italic}
.dash-sub{font-size:14px;color:var(--t2);margin-bottom:20px}
.wk{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--accent);padding:14px 0 6px}
.dc{
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:14px 16px;margin-bottom:6px;display:flex;align-items:center;gap:12px;
  cursor:pointer;transition:all .15s;
}
.dc:active{transform:scale(.98)}
.dc.cur{border-color:var(--accent);border-width:2px}
.dc.lk{opacity:.35;pointer-events:none}
.dc.dn{opacity:.7}
.dc-n{width:36px;height:36px;border-radius:50%;background:var(--al);color:var(--accent);font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.dc.dn .dc-n{background:var(--gl);color:var(--green)}
.dc-b{flex:1;min-width:0}
.dc-t{font-size:14px;font-weight:600}
.dc-d{font-size:11px;color:var(--t3)}
.dc-arr{color:var(--t3)}
.dc-arr svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}
.dc.dn .dc-arr{color:var(--green)}

/* Bottom nav */
.bnav{padding:12px 0 28px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border);margin-top:auto}
.bnav a,.bnav span{font-size:13px;font-weight:600;color:var(--t3);text-decoration:none;display:flex;align-items:center;gap:5px;cursor:pointer;padding:8px 0}
.bnav a:active,.bnav span:active{color:var(--accent)}
.bnav svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}

/* Lesson/Task screen */
.task{flex:1;padding:20px 0 0;animation:fadeIn .4s ease}
.task-head{margin-bottom:24px}
.task-day{font-size:13px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:1px;margin-bottom:6px}
.task-title{font-size:28px;font-weight:800;line-height:1.2;letter-spacing:-.3px}
.task-what{font-size:16px;line-height:1.7;color:var(--t1);margin-bottom:28px}
.task-what strong{color:var(--accent)}

/* Tip card */
.tip{background:var(--al);border-radius:14px;padding:18px 20px;margin-bottom:24px;display:flex;gap:14px;align-items:flex-start}
.tip-icon{width:36px;height:36px;border-radius:9px;background:var(--accent);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.tip-icon svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2}
.tip-label{font-size:12px;font-weight:700;color:var(--accent);margin-bottom:4px}
.tip-text{font-size:15px;line-height:1.6;color:var(--t0)}

/* Steps */
.steps{margin-bottom:24px}
.steps-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--t3);margin-bottom:12px}
.stp{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--border);cursor:pointer;-webkit-user-select:none;user-select:none}
.stp:last-child{border-bottom:none}
.stp-n{width:32px;height:32px;border-radius:50%;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:14px;font-weight:700;color:var(--t3);transition:all .3s}
.stp.ok .stp-n{background:var(--green);border-color:var(--green);color:#fff}
.stp-n svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:2.5;display:none}
.stp.ok .stp-n svg{display:block}
.stp.ok .stp-n span{display:none}
.stp-text{font-size:15px;line-height:1.5;color:var(--t1);padding-top:4px}
.stp.ok .stp-text{color:var(--t3);text-decoration:line-through}

/* AI Tool */
.aitool{background:var(--card);border:2px solid var(--accent);border-radius:18px;overflow:hidden;margin-bottom:28px;box-shadow:0 4px 24px rgba(200,146,58,.12);transition:background .3s}
.aitool-head{padding:14px 18px;background:var(--al);display:flex;justify-content:space-between;align-items:center}
.aitool-label{font-size:14px;font-weight:700;color:var(--accent);display:flex;align-items:center;gap:8px}
.aitool-label svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:2}
.aitool-hint{font-size:11px;color:var(--t3)}
.aitool-body{padding:18px}
.aitool textarea{width:100%;min-height:180px;border:1px solid var(--border);border-radius:12px;padding:16px;font-family:inherit;font-size:16px;color:var(--t0);background:var(--sbg);resize:vertical;line-height:1.6;outline:none;transition:border-color .2s}
.aitool textarea:focus{border-color:var(--accent)}
.aitool textarea::placeholder{color:var(--t3)}
.aitool-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:16px;background:var(--accent);color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:700;font-family:inherit;cursor:pointer;margin-top:14px;transition:all .2s}
.aitool-btn:hover{background:var(--ah)}
.aitool-btn:active{transform:scale(.98)}
.aitool-btn:disabled{opacity:.6;cursor:not-allowed}
.aitool-btn svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2}

/* Result */
.result{margin-top:18px;display:none;animation:fadeIn .4s}
.result.vis{display:block}
.result-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--green);margin-bottom:8px}
.result-box{background:var(--gl);border-radius:12px;padding:18px;font-size:15px;line-height:1.7;color:var(--t0);white-space:pre-wrap;word-break:break-word}
.result-actions{display:flex;gap:8px;margin-top:12px}
.result-actions button{flex:1;padding:12px;border:1px solid var(--border);border-radius:10px;background:var(--card);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;color:var(--t2);transition:all .2s}
.result-actions button:active{border-color:var(--accent);color:var(--accent)}

/* Error box */
.err-box{background:var(--rl);border-radius:12px;padding:14px 16px;font-size:14px;color:var(--red);line-height:1.5;margin-top:12px;display:none}
.err-box.vis{display:block}

/* Challenge */
.chal{background:var(--card);border:2px solid var(--green);border-radius:18px;overflow:hidden;margin-bottom:28px;display:none;animation:fadeIn .4s;box-shadow:0 4px 24px rgba(45,122,79,.1);transition:background .3s}
.chal.vis{display:block}
.chal-head{padding:14px 18px;background:var(--gl);display:flex;align-items:center;gap:8px}
.chal-head svg{width:18px;height:18px;stroke:var(--green);fill:none;stroke-width:2}
.chal-head span{font-size:14px;font-weight:700;color:var(--green)}
.chal-body{padding:18px}
.chal-text{font-size:16px;line-height:1.6;color:var(--t1);margin-bottom:14px;font-weight:500}
.chal textarea{width:100%;min-height:80px;border:1px solid var(--border);border-radius:12px;padding:14px;font-family:inherit;font-size:16px;color:var(--t0);background:var(--sbg);resize:vertical;line-height:1.5;outline:none}
.chal textarea:focus{border-color:var(--green)}
.chal-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:16px;background:var(--green);color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:700;font-family:inherit;cursor:pointer;margin-top:14px}
.chal-btn:active{transform:scale(.98)}
.chal-btn:disabled{opacity:.6;cursor:not-allowed}
.chal-btn svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2}
.chal-fb{padding:18px;border-radius:12px;margin-top:14px;display:none;animation:fadeIn .3s}
.chal-fb.vis{display:block}
.chal-fb.good{background:var(--gl);color:var(--green)}
.chal-fb.ok{background:var(--al);color:var(--ah)}
.chal-stars{display:flex;gap:4px;margin-bottom:8px}
.chal-stars svg{width:24px;height:24px}
.chal-fb-text{font-size:15px;line-height:1.6;font-weight:600}
.chal-fb-tip{font-size:14px;line-height:1.5;margin-top:6px;font-weight:400;opacity:.8}

/* Completion screen */
.comp{text-align:center;padding:48px 0;flex:1;display:flex;flex-direction:column;justify-content:center}
.comp-icon{width:80px;height:80px;border-radius:50%;background:var(--gl);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;animation:bounce .6s}
.comp-icon svg{width:40px;height:40px;stroke:var(--green);fill:none;stroke-width:2}
.comp-h{font-size:28px;font-weight:800;margin-bottom:8px}
.comp-p{font-size:16px;color:var(--t2);line-height:1.6;margin-bottom:28px}
.comp-stat{display:inline-flex;align-items:center;gap:6px;background:var(--gl);color:var(--green);font-weight:700;font-size:14px;padding:8px 16px;border-radius:8px;margin-bottom:24px}
.comp-next{font-size:14px;color:var(--t3);margin-bottom:24px}
.comp-next strong{color:var(--t1)}

/* Certificate screen */
.cert-screen{flex:1;padding:20px 0 40px;animation:fadeIn .4s}
.cert{width:100%;background:#FAFAF7;border:3px solid #C8923A;border-radius:20px;padding:40px 28px;text-align:center;position:relative;overflow:hidden}
.cert-badge{display:inline-flex;align-items:center;gap:8px;margin-bottom:24px}
.cert-logo{width:36px;height:36px;background:#C8923A;border-radius:9px;display:flex;align-items:center;justify-content:center}
.cert-logo svg{width:20px;height:20px;stroke:white;fill:none;stroke-width:2}
.cert-logo-text{font-size:22px;font-weight:800;color:#1A1915}
.cert-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:3px;color:#C8923A;margin-bottom:20px}
.cert-name{font-size:28px;font-weight:800;color:#1A1915;margin-bottom:8px;letter-spacing:-.3px;word-break:break-all}
.cert-desc{font-size:14px;color:#6B6960;line-height:1.7;margin:20px auto;max-width:400px}
.cert-details{display:flex;justify-content:center;gap:28px;margin:24px 0;flex-wrap:wrap}
.cert-detail-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:#9B998F;margin-bottom:3px}
.cert-detail-value{font-size:14px;font-weight:600;color:#1A1915}
.cert-footer{display:flex;justify-content:space-between;align-items:flex-end;margin-top:28px;padding-top:18px;border-top:1px solid #E8E6DE}
.cert-sign-name{font-size:13px;font-weight:700;color:#1A1915;text-align:left}
.cert-sign-role{font-size:11px;color:#9B998F;text-align:left}
.cert-id-text{font-size:10px;color:#9B998F;font-family:monospace;text-align:right}

/* Loading spinner */
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.spin{animation:spin 1s linear infinite;display:inline-block}

@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes bounce{0%{transform:scale(.5)}60%{transform:scale(1.1)}100%{transform:scale(1)}}

@media(max-width:400px){
  .task-title{font-size:24px}
  .login-h{font-size:22px}
  .cert{padding:28px 16px}
  .cert-name{font-size:22px}
}

@media print{
  body{background:white}
  .scr{display:none!important}
  #screen-certificate{display:flex!important}
  .bnav,.top,.btn{display:none!important}
  .cert-screen{padding:0}
  .cert{border-radius:0;box-shadow:none}
}