/* =========================================================
   KANDA Chat — Production CSS (Mobile-first)
   File: AI/chatbot/css/chat.css
   ========================================================= */

/* ---------- Color tokens ---------- */
:root{
  --ink-1:#0f2b63;      /* header/footer */
  --ink-2:#0b2250;
  --accent:#2f7cf6;     /* ปุ่ม/กรอบ input */
  --accent-2:#1f6bf0;
  --bg:#f6f8fc;         /* พื้นหลังเพจ */
  --card:#ffffff;       /* การ์ด/บับเบิล */
  --muted:#eef4ff;      /* พื้นหลังอ่อน */
  --drawer:#e8f0ff;     /* พื้นหลัง Drawer */
  --zebra-1:#f3f7ff;    /* ม้าลายเมนู */
  --zebra-2:#eaf1ff;
  --text:#1f2937;       /* ตัวหนังสือ */
  --text-2:#4b5563;
  --line:#e8edf6;       /* เส้นคั่น */
  --shadow-1:0 6px 18px rgba(0,0,0,.10);
  --shadow-2:0 12px 32px rgba(0,0,0,.15);

  --ok:#16a34a;         /* success */
  --danger:#e11d48;     /* error */
}

/* ---------- Base ---------- */
*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", "Noto Sans Thai", "Noto Sans", Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
a{ color:var(--accent); text-decoration:none; }
a:hover{ text-decoration:underline; }

.container{ width:100%; max-width:980px; margin:0 auto; padding:0 16px; }
.flex-between{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
.spacer{ flex:1; }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:1000;
  background:linear-gradient(180deg, var(--ink-1) 0%, var(--ink-2) 100%);
  color:#fff; border-bottom:1px solid rgba(255,255,255,.08);
}
.brand{
  display:inline-flex; align-items:center; gap:10px;
  color:#fff; font-weight:700; letter-spacing:.2px;
}
.brand i{ font-size:18px; }

/* Hamburger (column, compact) — visible on all viewports */
.hamburger{
  width:38px; height:38px;
  display:inline-flex; flex-direction:column; justify-content:center; align-items:center;
  gap:3px; border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.14);
  border-radius:10px; cursor:pointer;
  transition:background .12s ease, transform .12s ease;
}
.hamburger:hover{ background:rgba(255,255,255,.20); }
.hamburger:active{ transform:scale(.97); }
.hamburger span{
  display:block; width:22px; height:2px; background:#fff; border-radius:2px;
}

/* ---------- Drawer Menu ---------- */
.mobile-drawer{
  position:fixed; left:0; top:0; height:100vh; width:88vw; max-width:360px;
  background:var(--drawer); transform:translateX(-100%);
  transition:transform .22s cubic-bezier(.2,.7,.2,1);
  z-index:1100; box-shadow:var(--shadow-2);
  display:flex; flex-direction:column;
}
.mobile-drawer.open{ transform:translateX(0); }

/* Drawer header */
.drawer-header{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:14px 16px; color:#fff;
  background:linear-gradient(180deg, var(--ink-2) 0%, #081c3d 100%);
}
.drawer-header span{ font-weight:700; }

/* Close button — CSS "X" (ไม่พึ่งไอคอน) */
.drawer-close{
  position:relative;
  width:34px; height:34px; border-radius:9px;
  border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.14);
  cursor:pointer;
}
.drawer-close i{ display:none; } /* กันกรณีมี <i> ใน HTML */
.drawer-close::before,
.drawer-close::after{
  content:"";
  position:absolute; left:50%; top:50%;
  width:18px; height:2px; border-radius:2px;
  background:#fff; transform-origin:center;
}
.drawer-close::before{ transform:translate(-50%,-50%) rotate(45deg); }
.drawer-close::after{  transform:translate(-50%,-50%) rotate(-45deg); }
.drawer-close:hover{ background:rgba(255,255,255,.22); }

/* Drawer list + zebra */
.drawer-list{ list-style:none; margin:10px; padding:0; border-radius:12px; overflow:hidden; border:1px solid rgba(0,0,0,.06); }
.drawer-list > li{ border-bottom:1px solid rgba(0,0,0,.06); }
.drawer-list > li:nth-child(odd){ background:var(--zebra-1); }
.drawer-list > li:nth-child(even){ background:var(--zebra-2); }
.drawer-list > li:last-child{ border-bottom:none; }

.drawer-list a,
.sub-toggle{
  display:flex; align-items:center; gap:10px;
  width:100%; padding:12px 14px;
  color:#0f1f3a; text-decoration:none; background:transparent; border:0; text-align:left;
  cursor:pointer; font-size:15px;
}
.drawer-list a i, .sub-toggle i{ width:18px; text-align:center; color:#173b91; }
.drawer-list a:hover, .sub-toggle:hover{ background:rgba(23,59,145,.08); }

/* dropdown */
.has-sub{ position:relative; }
.sub{ display:none; list-style:none; margin:0; padding:8px 0 10px 34px; background:rgba(255,255,255,.65); }
.has-sub.open .sub{ display:block; }
.has-sub .sub-toggle{ position:relative; padding-right:32px; }
.has-sub .sub-toggle .fa-chevron-down{
  position:absolute; right:12px; top:50%; transform:translateY(-50%) rotate(0deg);
  transition:transform .16s ease; color:#173b91 !important;
}
.has-sub.open .sub-toggle .fa-chevron-down{ transform:translateY(-50%) rotate(180deg); }

/* ---------- Hero ---------- */
.hero{
  padding:18px 0 8px;
  background:linear-gradient(180deg, rgba(15,43,99,.06) 0%, rgba(15,43,99,0) 60%);
}
.hero-inner{
  display:flex; align-items:center; gap:14px;
  background:var(--card); border:1px solid var(--line);
  border-radius:16px; padding:14px; box-shadow:var(--shadow-1);
}
.hero-kanda{
  width:80px; height:80px; border-radius:14px; object-fit:cover;
  box-shadow:0 6px 16px rgba(0,0,0,.12);
}
.hero-text h1{ margin:0 0 6px; font-size:18px; color:#0d2a57; }
.hero-text p{ margin:0; color:var(--text-2); }

/* ---------- Chat ---------- */
.chat-wrap{ padding-bottom:24px; }
.chat{ padding-top:10px; }
.messages{ display:flex; flex-direction:column; gap:12px; }

.msg{ display:flex; align-items:flex-start; gap:10px; }
.msg .avatar{
  width:38px; height:38px; border-radius:50%; object-fit:cover; background:#dce7ff;
  box-shadow:0 2px 8px rgba(0,0,0,.1);
}
.bubble{
  max-width:94%;
  background:var(--card); border:1px solid var(--line);
  border-radius:14px; padding:10px 12px; box-shadow:var(--shadow-1);
  font-size:15px; word-wrap:break-word;
}
.msg.user{ justify-content:flex-end; }
.msg.user .bubble{ background:#f5f9ff; border-color:#cfe1ff; }
.bubble-title{ font-weight:700; color:#0c2b63; margin-bottom:4px; }
.bubble-text{ color:var(--text); }

.result-item{
  margin-top:10px; padding:10px 12px; border:1px solid var(--line);
  background:#fbfdff; border-radius:10px;
}
.result-item .title{ font-weight:700; color:#0b2e6b; margin:0 0 6px; }
.result-item .meta{ display:flex; flex-wrap:wrap; gap:8px; font-size:13px; color:#42506b; }
.kanda-result{ padding:12px; }
.result-head{ display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-bottom:8px; }
.doc-type{
  display:inline-flex; align-items:center; min-height:24px;
  padding:3px 8px; border-radius:999px;
  background:#eef4ff; color:#173b91; border:1px solid #dbe7ff;
  font-size:12.5px; font-weight:700;
}
.tag-row,.position-row{ display:flex; flex-wrap:wrap; gap:6px; margin:8px 0 0; }
.position-row{ margin-top:6px; }
.kanda-tag{
  display:inline-flex; align-items:center; min-height:24px;
  padding:3px 8px; border-radius:8px;
  background:#fff; border:1px solid #d8e2f4; color:#334155;
  font-size:12.5px; line-height:1.35;
}
.position-row .kanda-tag{
  background:#f7fbff; border-color:#cfe1ff; color:#0f2b63;
}
.detail-link{ margin-left:auto; }

/* deadline badges */
.badge-deadline{
  font-weight:700; padding:4px 8px; border-radius:999px; font-size:12.5px;
  border:1px solid #e6f0ff;
}
.badge-open{  color:#065f46; background:#e9fbf1; border-color:#d2f6e0; } /* ยังเปิดรับสมัครถึง … */
.badge-close{ color:#7c2d12; background:#fff4e5; border-color:#ffe6c2; } /* ปิดรับแล้ว … */

/* ---------- Composer ---------- */
.input-bar{ position:sticky; bottom:0; z-index:500; margin-top:10px; }
.ask-form{
  display:flex; align-items:center; gap:10px;
  background:var(--card);
  border:2px solid var(--accent);                 /* กรอบฟ้าให้เด่น */
  border-radius:16px; padding:8px 8px 8px 12px;
  box-shadow:var(--shadow-1);
}
.ask-form input{
  flex:1; border:0; outline:0; background:transparent;
  padding:10px 4px; font-size:15px;
}
.btn-primary{
  display:inline-flex; align-items:center; gap:8px;
  min-width:44px; height:40px; padding:0 14px;
  background:var(--accent); color:#fff; border:0; border-radius:12px;
  box-shadow:0 8px 16px rgba(47,124,246,.25);
  cursor:pointer; transition:transform .12s ease, background .12s ease;
}
.btn-primary:hover{ background:var(--accent-2); }
.btn-primary:active{ transform:translateY(1px); }

/* PDPA note */
.pdpa-note{
  margin-top:10px; font-size:13.5px; color:#0f2247;
  background:#eaf4ff; border:1px solid #cfe2ff;
  padding:10px 12px; border-radius:12px;
}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:24px; color:#cfe0ff;
  background:linear-gradient(180deg, var(--ink-1) 0%, var(--ink-2) 100%);
  border-top:1px solid rgba(255,255,255,.08);
}
.site-footer .container{ padding:14px 16px; }
.footer-meta{ display:flex; flex-direction:column; gap:8px; }
.footer-links{ display:flex; flex-wrap:wrap; gap:12px; }
.footer-links a{ color:#cfe0ff; }

/* ---------- Cookie Banner ---------- */
.cookie-banner{
  position:fixed; left:12px; right:12px; bottom:12px; z-index:1200;
  background:#fff7dc; color:#4a3000; border:1px solid #ffd88b;
  border-radius:12px; box-shadow:var(--shadow-2);
}
.cookie-inner{ display:flex; flex-direction:column; gap:10px; padding:12px 14px; }
.cookie-actions{ display:flex; gap:8px; flex-wrap:wrap; }
.btn-outline{
  padding:8px 12px; border-radius:10px; cursor:pointer; font-weight:600;
  background:#fff; border:1px solid #cdd9ff; color:#173b91;
}
.btn-outline.light{ border-color:#f1c9c9; color:#7a2e2e; }

/* ---------- Utilities ---------- */
.hidden{ display:none !important; }

/* ---------- Responsive ---------- */
@media (min-width:640px){
  .hero-kanda{ width:96px; height:96px; }
  .bubble{ max-width:860px; }
  .cookie-inner{ flex-direction:row; align-items:center; justify-content:space-between; }
}

@media (max-width:430px){
  .result-item{ padding:10px; }
  .result-item .title{ font-size:14.5px; line-height:1.45; }
  .result-item .meta{ margin-top:10px; }
  .detail-link{ width:100%; text-align:center; margin-left:0; }
  .kanda-tag,.doc-type,.badge-deadline{ font-size:12px; }
}