/* KhairyPustaka Web — mobile-first, Gen-Z playful */
:root{
  --bg:#f6f4ff;
  --card:#ffffff;
  --ink:#23213a;
  --muted:#7b7794;
  --brand:#6c4dff;
  --brand-dark:#5233d6;
  --accent:#ff7ac6;
  --ok:#22b573;
  --warn:#ff9f1c;
  --err:#e5484d;
  --line:#e9e5f7;
  --radius:16px;
  --shadow:0 6px 24px rgba(108,77,255,.10);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.55;
  padding-bottom:env(safe-area-inset-bottom);
}
a{color:var(--brand);text-decoration:none}
h1,h2,h3{line-height:1.3;margin:.6em 0 .4em}
h1{font-size:1.7rem}h2{font-size:1.35rem}h3{font-size:1.1rem}
.container{max-width:860px;margin:0 auto;padding:16px 16px 40px}
.tiny{font-size:.82rem}
.muted{color:var(--muted)}
.center{text-align:center}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:10px;
  background:linear-gradient(120deg,var(--brand),#8a5cf6);
  padding:10px 14px;box-shadow:var(--shadow);
}
.brand{color:#fff;font-weight:800;font-size:1.15rem;display:flex;align-items:center;gap:6px}
.brand span{letter-spacing:.3px}
.menu-btn{
  margin-left:auto;background:rgba(255,255,255,.18);border:0;color:#fff;font-size:1.3rem;
  border-radius:10px;padding:6px 12px;cursor:pointer;
}
.nav{
  display:none;position:absolute;top:100%;left:0;right:0;background:var(--card);
  flex-direction:column;max-height:70vh;overflow:auto;box-shadow:var(--shadow);
  border-bottom:3px solid var(--brand);
}
.nav.open{display:flex}
.nav a{padding:12px 18px;color:var(--ink);border-bottom:1px solid var(--line);font-weight:600}
.nav a:hover,.nav a.active{background:#f1edff;color:var(--brand-dark)}

/* Cards & hero */
.hero{
  background:linear-gradient(135deg,var(--brand),#9b6bff 60%,var(--accent));
  color:#fff;border-radius:var(--radius);padding:28px 20px;text-align:center;
  box-shadow:var(--shadow);margin-bottom:18px;
}
.hero h1{font-size:1.9rem;margin:.2em 0}
.hero p{opacity:.95;margin:.4em 0 1em}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
@media(min-width:700px){.grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}}
.feat{
  background:var(--card);border-radius:var(--radius);padding:16px 12px;text-align:center;
  box-shadow:var(--shadow);border:1px solid var(--line);color:var(--ink);display:block;
  transition:transform .12s ease;
}
.feat:hover{transform:translateY(-2px)}
.feat .ico{font-size:1.9rem;display:block;margin-bottom:6px}
.feat b{display:block;font-size:.95rem}
.feat small{color:var(--muted)}
.card{
  background:var(--card);border-radius:var(--radius);padding:16px;margin-bottom:12px;
  box-shadow:var(--shadow);border:1px solid var(--line);
}
.card h3{margin-top:0}

/* Forms */
label{display:block;font-weight:600;margin:.8em 0 .3em}
input[type=text],input[type=date],textarea,select{
  width:100%;padding:12px;border:2px solid var(--line);border-radius:12px;font-size:1rem;
  font-family:inherit;background:#fbfbff;color:var(--ink);
}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand)}
textarea{min-height:110px;resize:vertical}
.btn{
  display:inline-block;border:0;border-radius:12px;padding:12px 18px;font-size:1rem;font-weight:700;
  cursor:pointer;background:#ece9ff;color:var(--brand-dark);margin:4px 4px 4px 0;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:linear-gradient(120deg,var(--brand),var(--brand-dark));color:#fff}
.btn-accent{background:linear-gradient(120deg,var(--accent),#ff5fa2);color:#fff}
.btn-ghost{background:transparent;border:2px solid var(--line);color:var(--ink)}
.btn-danger{background:#ffe9ea;color:var(--err)}
.btn-block{display:block;width:100%;text-align:center}
.btn[disabled]{opacity:.55;cursor:wait}
.tabs{display:flex;gap:8px;margin:12px 0}
.tab{
  flex:1;padding:12px;border-radius:12px;border:2px solid var(--line);background:var(--card);
  font-weight:700;cursor:pointer;color:var(--muted);
}
.tab.active{border-color:var(--brand);color:var(--brand-dark);background:#f1edff}

/* Result cards */
.hasil{border-left:5px solid var(--brand)}
.hasil h3{margin:.1em 0 .3em;font-size:1.05rem}
.meta{font-size:.85rem;color:var(--muted);margin-bottom:6px}
details.abstrak{margin:8px 0;background:#faf9ff;border-radius:10px;padding:8px 10px}
details.abstrak summary{cursor:pointer;font-weight:700;color:var(--brand-dark);font-size:.9rem}
.aksi-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.aksi-row .btn{margin:0;padding:9px 12px;font-size:.88rem}
.link-out{font-size:.88rem;font-weight:700}

/* Chips */
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.chip{
  border:2px solid var(--line);background:#fbfbff;border-radius:999px;padding:8px 14px;
  font-weight:700;cursor:pointer;color:var(--ink);
}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}

/* Chat */
.chat{display:flex;flex-direction:column;gap:10px;margin:12px 0}
.bubble{max-width:88%;padding:10px 14px;border-radius:16px;font-size:.95rem;white-space:pre-wrap;word-wrap:break-word}
.bubble.user{align-self:flex-end;background:var(--brand);color:#fff;border-bottom-right-radius:4px}
.bubble.bot{align-self:flex-start;background:var(--card);border:1px solid var(--line);border-bottom-left-radius:4px;box-shadow:var(--shadow)}
.chat-form{display:flex;gap:8px;position:sticky;bottom:0;background:var(--bg);padding:8px 0}
.chat-form input{flex:1}

/* Timeline */
.timeline{list-style:none;padding:0;margin:12px 0}
.timeline li{
  background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:8px;
  display:flex;gap:12px;align-items:flex-start;box-shadow:var(--shadow);
}
.timeline .tgl{background:#f1edff;color:var(--brand-dark);font-weight:800;border-radius:10px;padding:6px 10px;font-size:.85rem;white-space:nowrap}

/* Deadline */
.dl-item{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:12px;margin-bottom:8px;background:var(--card)}
.dl-item .nama{flex:1;font-weight:700}
.dl-item .date{color:var(--muted);font-size:.88rem}
.dl-dekat{border-left:5px solid var(--warn)}
.dl-lewat{border-left:5px solid var(--err)}

/* Kuota badge */
.kuota{display:inline-block;background:#e9f9f0;color:#147a4c;font-weight:800;border-radius:999px;padding:6px 14px;font-size:.88rem}
.kuota.habis{background:#ffe9ea;color:var(--err)}

/* AI cards */
.ai-grid{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:700px){.ai-grid{grid-template-columns:1fr 1fr}}
.ai-card .hasil-ai{background:#faf9ff;border:1px dashed var(--brand);border-radius:12px;padding:12px;margin-top:10px;white-space:pre-wrap;font-size:.93rem}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(35,33,58,.55);display:flex;align-items:flex-end;justify-content:center;z-index:100}
@media(min-width:700px){.modal{align-items:center}}
.modal-box{background:var(--card);border-radius:20px 20px 0 0;padding:18px;width:100%;max-width:560px;max-height:85vh;overflow:auto}
@media(min-width:700px){.modal-box{border-radius:20px}}
.modal-head{display:flex;align-items:center;justify-content:space-between}
.modal-head h3{margin:0}
.x{border:0;background:#f1edff;border-radius:10px;font-size:1.1rem;padding:6px 12px;cursor:pointer;color:var(--ink)}
.sitasi-hasil pre{background:#faf9ff;border:1px solid var(--line);border-radius:12px;padding:12px;white-space:pre-wrap;font-size:.92rem;font-family:inherit}
.hidden{display:none!important}

/* Toast */
.toast{
  position:fixed;left:50%;transform:translateX(-50%);bottom:24px;z-index:200;
  background:var(--ink);color:#fff;padding:12px 20px;border-radius:14px;max-width:90vw;
  box-shadow:var(--shadow);font-weight:600;font-size:.95rem;
}

/* Footer */
.footer{text-align:center;padding:28px 16px 40px;color:var(--muted)}
.footer .btn{margin:10px 0}

/* Spinner text */
.loading{color:var(--muted);font-style:italic;padding:12px 0}
.err-box{background:#ffe9ea;border:1px solid #f5b5b8;color:#8f1d22;border-radius:12px;padding:12px;margin:10px 0}
.ok-box{background:#e9f9f0;border:1px solid #a9e5c5;color:#147a4c;border-radius:12px;padding:12px;margin:10px 0}
.warn-box{background:#fff4e0;border:1px solid #f3d08a;color:#8a5a00;border-radius:12px;padding:12px;margin:10px 0}
ol.langkah,ul.bersih{padding-left:20px}
.empty{text-align:center;color:var(--muted);padding:30px 10px;font-size:1rem}