/* =====================================================================
   เปิดโลกวิชาการ — โรงเรียนวังกรดพิทยา
   ธีม: การ์ตูนมินิมอล การ์ดมนโค้ง พื้นหลังลาเวนเดอร์นุ่ม
   ===================================================================== */

:root{
  /* พื้นหลัง / พื้นผิว */
  --bg:#EEEFF8;
  --surface:#FFFFFF;
  --surface-2:#F7F8FD;
  --line:#EBEDF6;

  /* ตัวอักษร */
  --ink:#1E2740;
  --ink-2:#5A6484;
  --muted:#98A0B8;

  /* สีหลัก */
  --navy:#1F3F77;
  --navy-2:#2E5AA0;
  --blue:#5B8DEF;
  --pink:#FF6E8A;
  --rose:#FF89B0;
  --amber:#FFC94D;
  --purple:#7C6BFF;
  --indigo:#6455E8;
  --teal:#3DC7B8;
  --green:#4BC97F;
  --gray:#9AA3BC;

  /* พื้นอ่อนของแต่ละสี */
  --blue-soft:#E8F0FF;
  --pink-soft:#FFE9F0;
  --rose-soft:#FFECF4;
  --amber-soft:#FFF4DA;
  --purple-soft:#EDE9FF;
  --indigo-soft:#E9E6FF;
  --teal-soft:#DFF7F4;
  --green-soft:#E2F7EC;
  --gray-soft:#EFF1F7;

  --radius:26px;
  --radius-sm:16px;
  --radius-xs:12px;
  --shadow:0 10px 34px rgba(31,63,119,.07);
  --shadow-sm:0 4px 16px rgba(31,63,119,.06);
  --shadow-lg:0 22px 60px rgba(31,63,119,.13);
  --ring:0 0 0 4px rgba(91,141,239,.16);
}

*,*::before,*::after{box-sizing:border-box}

html{ -webkit-text-size-adjust:100% }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Noto Sans Thai','Prompt',-apple-system,'Segoe UI',sans-serif;
  font-weight:300;
  font-size:15px;
  line-height:1.85;
  letter-spacing:.1px;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,h5{
  font-family:'Prompt','Noto Sans Thai',sans-serif;
  font-weight:500;
  line-height:1.45;
  letter-spacing:0;
  margin:0;
  color:var(--ink);
}
h1{font-size:30px}
h2{font-size:21px}
h3{font-size:17px}
h4{font-size:15px}

p{margin:0 0 10px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
small{font-size:12.5px}

/* ---------- ขนาดเริ่มต้นของ SVG ----------
   ไอคอนและมาสคอตไม่มี width/height ในตัวไฟล์ ถ้าไม่กำหนดไว้จะยืดเต็มพื้นที่
   กฎนี้ต้องอยู่ก่อนกฎของแต่ละคอมโพเนนต์ เพื่อให้กฎเฉพาะจุดด้านล่างเขียนทับได้ */
svg{flex:none;max-width:100%}
svg:not(.mascot){width:20px;height:20px}
.mascot{width:100%;height:auto;display:block}

::selection{background:#D9E4FF}

/* ---------- โครงหน้า ---------- */
.shell{
  max-width:1440px;
  margin:0 auto;
  padding:20px;
  display:flex;
  gap:20px;
  align-items:flex-start;
}

/* ---------- แถบเมนูด้านซ้าย ---------- */
.rail{
  width:108px;
  flex:0 0 108px;
  background:var(--surface);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px 0 18px;
  position:sticky;
  top:20px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  min-height:calc(100vh - 40px);
  z-index:50;              /* ให้ทูลทิปลอยเหนือการ์ดเนื้อหา ไม่ถูกบัง */
}
.rail .brand{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--navy),var(--navy-2));
  color:#fff;font-family:'Prompt',sans-serif;font-weight:600;font-size:19px;
  margin-bottom:16px;
  box-shadow:0 8px 18px rgba(31,63,119,.28);
}
.rail-link{
  width:88px;min-height:62px;border-radius:18px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  color:var(--muted);
  position:relative;padding:9px 4px;
  transition:.22s;text-align:center;
}
.rail-link svg{width:22px;height:22px;stroke-width:1.6}
.rail-link .lb{font-size:11px;line-height:1.35;letter-spacing:0}
.rail-link:hover{background:var(--surface-2);color:var(--navy)}
.rail-link.active{background:var(--blue-soft);color:var(--navy)}
.rail-link.active .lb{font-weight:400}
.rail-sep{width:56px;height:1px;background:var(--line);margin:9px 0}
.rail-bottom{margin-top:auto}

/* ---------- คอลัมน์เนื้อหา ---------- */
.stage{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:20px}
.columns{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:20px;align-items:start}
.col-main{min-width:0;display:flex;flex-direction:column;gap:22px}
.col-side{display:flex;flex-direction:column;gap:18px;position:sticky;top:20px}

.panel{
  background:var(--surface);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px;
}
.panel.tight{padding:18px}

/* ---------- แถบบน (ค้นหา + ปุ่ม) ---------- */
.topbar{
  display:flex;align-items:center;gap:14px;
  background:var(--surface);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:12px 14px;
}
.search{
  flex:1 1 auto;display:flex;align-items:center;gap:10px;
  background:var(--surface-2);border-radius:16px;padding:11px 16px;
  border:1px solid transparent;transition:.2s;
}
.search:focus-within{border-color:#D6E1FA;background:#fff;box-shadow:var(--ring)}
.search svg{width:18px;height:18px;color:var(--muted);flex:none}
.search input{
  border:0;background:transparent;outline:0;flex:1;
  font-family:inherit;font-weight:300;font-size:14.5px;color:var(--ink);
}
.search input::placeholder{color:var(--muted)}

.topbar-chip{
  display:flex;align-items:center;gap:10px;
  background:var(--surface-2);border-radius:16px;padding:8px 8px 8px 16px;
  white-space:nowrap;
}
.topbar-chip .t1{font-size:11.5px;color:var(--muted);line-height:1.3}
.topbar-chip .t2{font-size:13.5px;font-weight:500;font-family:'Prompt',sans-serif;line-height:1.3}
.topbar-chip .av{
  width:38px;height:38px;border-radius:13px;background:var(--pink-soft);
  display:grid;place-items:center;overflow:hidden;
}
.topbar-chip .av svg{width:30px;height:30px}

/* ---------- แบนเนอร์หลัก ---------- */
.hero{
  position:relative;overflow:hidden;
  border-radius:var(--radius);
  background:linear-gradient(115deg,#1B3B6F 0%,#26538F 48%,#2C7E93 100%);
  color:#fff;
  padding:34px 38px;
  min-height:236px;
  display:flex;align-items:center;
  box-shadow:0 18px 44px rgba(27,59,111,.28);
}
.hero::before,.hero::after{
  content:'';position:absolute;border-radius:50%;
  border:1.5px solid rgba(255,255,255,.13);
}
.hero::before{width:340px;height:340px;right:-90px;top:-120px}
.hero::after{width:230px;height:230px;right:40px;bottom:-130px}
.hero-copy{position:relative;z-index:2;max-width:60%}
.hero-eyebrow{
  font-size:11.5px;letter-spacing:2.6px;text-transform:uppercase;
  color:rgba(255,255,255,.72);font-weight:400;margin-bottom:10px;
}
.hero h1{
  color:#fff;font-size:34px;font-weight:500;line-height:1.32;margin-bottom:10px;
}
.hero p{color:rgba(255,255,255,.78);font-size:14.5px;max-width:430px;margin-bottom:18px}
.hero-toys{position:absolute;right:24px;bottom:0;top:0;width:44%;z-index:1}
.hero-toys .mascot{position:absolute;filter:drop-shadow(0 12px 22px rgba(6,25,52,.35))}
.hero-toys .m1{width:150px;right:118px;bottom:6px;animation:float 5s ease-in-out infinite}
.hero-toys .m2{width:126px;right:8px;bottom:34px;animation:float 5s ease-in-out .8s infinite}
.hero-toys .m3{width:104px;right:214px;bottom:56px;animation:float 6s ease-in-out .4s infinite}
@keyframes float{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-13px) rotate(2deg)}}

.hero-badges{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.hero-badge{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.16);
  border-radius:999px;padding:5px 13px;font-size:12.5px;color:#fff;
  backdrop-filter:blur(4px);
}

/* ---------- ปุ่ม ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border:0;cursor:pointer;border-radius:999px;
  font-family:'Prompt',sans-serif;font-weight:500;font-size:14.5px;
  padding:12px 24px;transition:.22s;text-align:center;
  background:var(--surface-2);color:var(--ink);
}
.btn svg{width:17px;height:17px}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-white{background:#fff;color:var(--navy);box-shadow:0 8px 22px rgba(5,22,48,.22);padding-right:8px}
.btn-white .go{
  width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;
  display:grid;place-items:center;
}
.btn-white .go svg{width:14px;height:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--navy-2),var(--navy));color:#fff;
  box-shadow:0 12px 26px rgba(31,63,119,.3);
}
.btn-pink{background:linear-gradient(135deg,#FF8FA8,var(--pink));color:#fff;box-shadow:0 12px 26px rgba(255,110,138,.32)}
.btn-soft{background:var(--blue-soft);color:var(--navy)}
.btn-ghost{background:transparent;border:1.5px solid var(--line);color:var(--ink-2)}
.btn-ghost:hover{border-color:#D6E1FA;color:var(--navy)}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;box-shadow:none}

/* ---------- หัวข้อส่วน ---------- */
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.sec-head h2{font-size:20px}
.sec-head .more{font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:6px}
.sec-head .more:hover{color:var(--navy)}
.more svg{width:15px;height:15px}
.sec-sub{color:var(--muted);font-size:13px;margin-top:-8px;margin-bottom:14px}

/* ---------- ชิปหมวดหมู่ ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;padding:2px}
.chip{
  display:inline-flex;align-items:center;gap:9px;white-space:nowrap;
  background:var(--surface);border:1px solid var(--line);
  border-radius:16px;padding:9px 17px 9px 9px;
  font-size:14px;color:var(--ink-2);transition:.22s;flex:none;
}
.chip .ic{width:32px;height:32px;border-radius:11px;display:grid;place-items:center;background:var(--gray-soft)}
.chip .ic svg{width:24px;height:24px}
.chip:hover{border-color:#D6E1FA;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.chip.active{border-color:transparent;box-shadow:var(--shadow-sm);color:var(--ink);font-weight:400}
.chip.active .ic{background:#fff}

/* สีชิป/การ์ดตามหมวด */
.c-blue   .ic,.tone-blue   {background:var(--blue-soft)}
.c-pink   .ic,.tone-pink   {background:var(--pink-soft)}
.c-rose   .ic,.tone-rose   {background:var(--rose-soft)}
.c-amber  .ic,.tone-amber  {background:var(--amber-soft)}
.c-purple .ic,.tone-purple {background:var(--purple-soft)}
.c-indigo .ic,.tone-indigo {background:var(--indigo-soft)}
.c-teal   .ic,.tone-teal   {background:var(--teal-soft)}
.c-green  .ic,.tone-green  {background:var(--green-soft)}
.c-gray   .ic,.tone-gray   {background:var(--gray-soft)}
.chip.active.c-blue{background:var(--blue-soft)}
.chip.active.c-pink{background:var(--pink-soft)}
.chip.active.c-rose{background:var(--rose-soft)}
.chip.active.c-amber{background:var(--amber-soft)}
.chip.active.c-purple{background:var(--purple-soft)}
.chip.active.c-indigo{background:var(--indigo-soft)}
.chip.active.c-teal{background:var(--teal-soft)}
.chip.active.c-green{background:var(--green-soft)}

/* ---------- การ์ดกิจกรรม ---------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(206px,1fr));gap:16px}
.act-card{
  background:var(--surface);border:1px solid var(--line);border-radius:22px;
  padding:14px;display:flex;flex-direction:column;gap:10px;
  transition:.24s;position:relative;overflow:hidden;
}
.act-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.act-thumb{
  border-radius:18px;height:128px;display:grid;place-items:center;position:relative;overflow:hidden;
}
.act-thumb .mascot{width:88px;transition:.3s}
.act-card:hover .act-thumb .mascot{transform:scale(1.08) rotate(-4deg)}
.act-code{
  position:absolute;top:9px;left:10px;background:rgba(255,255,255,.75);
  border-radius:8px;padding:2px 8px;font-size:11px;font-weight:500;
  font-family:'Prompt',sans-serif;color:var(--ink-2);backdrop-filter:blur(3px);
}
.act-title{font-family:'Prompt',sans-serif;font-weight:500;font-size:15px;line-height:1.5}
.act-desc{font-size:12.5px;color:var(--muted);line-height:1.6}
.act-meta{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--ink-2);margin-top:auto}
.act-meta span{display:inline-flex;align-items:center;gap:5px}
.act-meta svg{width:14px;height:14px;color:var(--amber)}
.act-meta .seat svg{color:var(--blue)}

.ribbon{
  position:absolute;top:10px;right:10px;z-index:2;
  background:var(--pink);color:#fff;font-size:10.5px;font-weight:500;
  font-family:'Prompt',sans-serif;border-radius:999px;padding:3px 10px;
  box-shadow:0 6px 14px rgba(255,110,138,.4);
}
.ribbon.full{background:var(--gray);box-shadow:none}
.ribbon.closed{background:var(--ink-2);box-shadow:none}

.card-more{
  border:1.5px dashed #D9DFF0;background:transparent;border-radius:22px;
  display:grid;place-items:center;gap:8px;color:var(--muted);min-height:200px;transition:.24s;
}
.card-more:hover{border-color:var(--blue);color:var(--navy);background:var(--surface)}
.card-more .circ{width:44px;height:44px;border-radius:50%;background:var(--surface);
  box-shadow:var(--shadow-sm);display:grid;place-items:center}

/* ---------- รายการแนวนอน ---------- */
.row-item{
  display:flex;align-items:center;gap:14px;
  background:var(--surface-2);border-radius:20px;padding:12px 16px;transition:.2s;
}
.row-item:hover{background:#F1F4FD}
.row-item .ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;flex:none}
.row-item .ic svg{width:38px;height:38px}
.row-item .body{flex:1;min-width:0}
.row-item .body h4{font-size:14.5px;margin-bottom:2px}
.row-item .body p{font-size:12.5px;color:var(--muted);margin:0}
.row-list{display:flex;flex-direction:column;gap:10px}

/* ---------- คอลัมน์ขวา : ข่าว ---------- */
.news-item{display:flex;align-items:center;gap:12px;padding:9px 0}
.news-item .ic{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;flex:none}
.news-item .ic svg{width:34px;height:34px}
.news-item .body{flex:1;min-width:0}
.news-item h4{font-size:14px;line-height:1.5;margin-bottom:1px}
.news-item p{font-size:12px;color:var(--muted);margin:0;line-height:1.5}
.news-item .pill{
  border:1.4px solid var(--line);border-radius:999px;padding:5px 14px;
  font-size:12px;color:var(--navy);font-family:'Prompt',sans-serif;font-weight:500;flex:none;transition:.2s;
}
.news-item .pill:hover{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ---------- การ์ดไฮไลต์คอลัมน์ขวา ---------- */
.spotlight{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;overflow:hidden}
.spotlight .cover{
  border-radius:20px;height:150px;display:grid;place-items:center;position:relative;margin-bottom:14px;
  background:linear-gradient(135deg,#DFF7F4,#E8F0FF);
}
.spotlight .cover .mascot{width:104px}
.spotlight .cover .play svg{width:15px;height:15px;color:var(--navy)}
.spotlight .cover .play{
  position:absolute;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.9);
  display:grid;place-items:center;box-shadow:var(--shadow-sm);
}
.spotlight h3{margin-bottom:8px}
.spotlight .tag{
  display:inline-block;background:var(--pink-soft);color:var(--pink);
  border-radius:999px;padding:3px 13px;font-size:12px;margin-bottom:10px;
}
.spotlight p{font-size:13px;color:var(--ink-2);line-height:1.8}
.stat-row{display:flex;justify-content:space-between;gap:8px;margin:16px 0}
.stat{text-align:center;flex:1}
.stat b{display:block;font-family:'Prompt',sans-serif;font-weight:600;font-size:19px;color:var(--ink)}
.stat b i{font-style:normal;font-size:12px;font-weight:400;color:var(--muted)}
.stat span{font-size:11.5px;color:var(--muted)}

/* ---------- แถบความคืบหน้า ---------- */
.progress{height:8px;border-radius:99px;background:#E9ECF6;overflow:hidden}
.progress i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--navy-2),var(--blue))}
.progress.warn i{background:linear-gradient(90deg,#FFB43D,var(--pink))}
.progress.full i{background:var(--gray)}

/* ---------- ตารางกำหนดการ ---------- */
.day-tabs{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.day-tab{
  background:var(--surface-2);border-radius:18px;padding:11px 20px;font-size:14px;color:var(--ink-2);
  font-family:'Prompt',sans-serif;transition:.2s;border:1px solid transparent;
}
.day-tab.active{background:linear-gradient(135deg,var(--navy-2),var(--navy));color:#fff;box-shadow:0 10px 22px rgba(31,63,119,.24)}
.timeline{position:relative;padding-left:24px}
.timeline::before{content:'';position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl-item{position:relative;padding:14px 0}
.tl-item::before{
  content:'';position:absolute;left:-24px;top:22px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--blue);
}
.tl-item.c-pink::before{border-color:var(--pink)}
.tl-item.c-purple::before{border-color:var(--purple)}
.tl-item.c-amber::before{border-color:var(--amber)}
.tl-item.c-teal::before{border-color:var(--teal)}
.tl-item.c-rose::before{border-color:var(--rose)}
.tl-time{font-family:'Prompt',sans-serif;font-weight:500;font-size:13px;color:var(--navy)}
.tl-item h4{font-size:15.5px;margin:2px 0 3px}
.tl-item p{font-size:13px;color:var(--muted);margin:0}
.tl-loc{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:var(--ink-2);margin-top:5px}
.tl-loc svg{width:14px;height:14px;color:var(--muted)}

/* ---------- ฟอร์ม ---------- */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;color:var(--ink-2);font-weight:400}
.field label .req{color:var(--pink)}
.field .hint{font-size:12px;color:var(--muted)}
.input,select.input,textarea.input{
  width:100%;border:1.5px solid var(--line);background:var(--surface-2);
  border-radius:15px;padding:12px 15px;
  font-family:inherit;font-weight:300;font-size:14.5px;color:var(--ink);
  outline:0;transition:.2s;
}
textarea.input{resize:vertical;min-height:96px;line-height:1.8}
.input:focus{border-color:#C9D9FA;background:#fff;box-shadow:var(--ring)}
.input::placeholder{color:#B6BDD1}
select.input{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%2398A0B8' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M3 5l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;padding-right:40px;
}
.input.err{border-color:#FFB9C9;background:#FFF6F8}

/* ---------- เลือกกลุ่มผู้สมัคร ภายใน / ภายนอก ---------- */
.pick-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.pick{
  display:flex;align-items:center;gap:13px;cursor:pointer;
  border:1.5px solid var(--line);background:var(--surface-2);
  border-radius:20px;padding:14px 16px;transition:.2s;position:relative;
}
.pick input{position:absolute;opacity:0;pointer-events:none}
.pick .ic{
  width:50px;height:50px;border-radius:16px;background:#fff;flex:none;
  display:grid;place-items:center;box-shadow:var(--shadow-sm);
}
.pick .ic svg{width:38px;height:38px}
.pick .txt b{display:block;font-family:'Prompt',sans-serif;font-weight:500;font-size:14.5px}
.pick .txt small{color:var(--muted);font-size:12px;line-height:1.6}
.pick:hover{border-color:#D6E1FA}
.pick.active{border-color:var(--navy-2);background:#fff;box-shadow:var(--ring)}
.pick.active::after{
  content:'';position:absolute;top:12px;right:14px;width:9px;height:9px;
  border-radius:50%;background:var(--navy-2);
}

/* ---------- ซ่อน/แสดงช่องกรอกตามกลุ่มผู้สมัคร ---------- */
.int-only{display:none}
#regForm.is-internal .ext-only{display:none}
#regForm.is-internal .int-only{display:block}
#regForm.is-internal span.int-only{display:inline}

/* เลขลำดับหัวข้อ นับเฉพาะหัวข้อที่แสดงอยู่จริง */
#regForm{counter-reset:secnum}
#regForm h2.sec-num::before{
  counter-increment:secnum;
  content:counter(secnum) ". ";
  color:var(--navy-2);
}

fieldset.member{
  border:1.5px solid var(--line);border-radius:20px;padding:16px 18px 18px;margin:0 0 14px;
  background:var(--surface-2);
}
fieldset.member legend{
  font-family:'Prompt',sans-serif;font-weight:500;font-size:13.5px;color:var(--navy);
  background:#fff;border:1.5px solid var(--line);border-radius:999px;padding:4px 15px;
}

/* ---------- เลือกระดับชั้นที่เปิดรับ ---------- */
.level-pick{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}
.lv-group{background:var(--surface-2);border-radius:18px;padding:12px 14px}
.lv-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:9px}
.lv-head span{font-size:12.5px;color:var(--ink-2);font-family:'Prompt',sans-serif;font-weight:500}
.lv-all{border:0;background:transparent;cursor:pointer;font-family:inherit;font-size:11.5px;color:var(--navy-2)}
.lv-all:hover{text-decoration:underline}
.lv-items{display:flex;flex-wrap:wrap;gap:7px}
.lv-chip{
  display:inline-flex;align-items:center;cursor:pointer;user-select:none;
  background:#fff;border:1.5px solid var(--line);border-radius:11px;
  padding:6px 13px;font-size:13px;color:var(--ink-2);transition:.15s;
}
.lv-chip input{position:absolute;opacity:0;pointer-events:none}
.lv-chip:hover{border-color:#C9D9FA}
.lv-chip.on{background:var(--navy);border-color:var(--navy);color:#fff;font-weight:400}

/* ---------- ปุ่มเพิ่มรายชื่อนักเรียน (อยู่ใต้รายชื่อ กดง่าย) ---------- */
.btn-add{
  display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;
  width:100%;cursor:pointer;
  border:1.5px dashed #C9D5EE;background:var(--surface-2);
  border-radius:20px;padding:15px 18px;margin-bottom:4px;
  font-family:'Prompt',sans-serif;font-weight:500;font-size:15px;color:var(--navy);
  transition:.2s;
}
.btn-add small{font-family:'Noto Sans Thai',sans-serif;font-weight:300;font-size:12.5px;color:var(--muted)}
.btn-add .circ{
  width:30px;height:30px;border-radius:50%;background:#fff;flex:none;
  display:grid;place-items:center;box-shadow:var(--shadow-sm);
}
.btn-add .circ svg{width:17px;height:17px}
.btn-add:hover{border-color:var(--blue);background:#fff;box-shadow:var(--shadow-sm)}
.btn-add:active{transform:scale(.99)}

/* ---------- ขั้นตอน ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.step{background:var(--surface-2);border-radius:20px;padding:16px 18px}
.step b{
  display:grid;place-items:center;width:32px;height:32px;border-radius:11px;
  background:#fff;color:var(--navy);font-family:'Prompt',sans-serif;font-size:14px;
  box-shadow:var(--shadow-sm);margin-bottom:9px;
}
.step h4{font-size:14.5px;margin-bottom:3px}
.step p{font-size:12.5px;color:var(--muted);margin:0}

/* ---------- ป้ายสถานะ ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:5px 14px;font-size:12.5px;font-family:'Prompt',sans-serif;font-weight:500;
}
.badge::before{content:'';width:7px;height:7px;border-radius:50%;background:currentColor}
.badge-green{background:var(--green-soft);color:#22935B}
.badge-amber{background:var(--amber-soft);color:#B67A00}
.badge-rose{background:var(--rose-soft);color:#D63B67}
.badge-gray{background:var(--gray-soft);color:#6D7691}
.badge-blue{background:var(--blue-soft);color:var(--navy)}
.badge-purple{background:var(--purple-soft);color:var(--indigo)}

.tag-mini{
  display:inline-block;border-radius:999px;padding:2px 11px;font-size:11.5px;
  background:var(--gray-soft);color:var(--ink-2);
}

/* ---------- ข้อความแจ้งเตือน ---------- */
.alert{
  display:flex;gap:12px;align-items:flex-start;border-radius:20px;padding:14px 18px;
  font-size:13.5px;line-height:1.75;margin-bottom:14px;
}
.alert svg{width:20px;height:20px;flex:none;margin-top:2px}
.alert-ok{background:var(--green-soft);color:#1E7A4C}
.alert-err{background:var(--rose-soft);color:#C6355F}
.alert-info{background:var(--blue-soft);color:var(--navy)}
.alert-warn{background:var(--amber-soft);color:#9C6A00}
.alert ul{margin:4px 0 0;padding-left:18px}

/* ---------- ตาราง ---------- */
.table-wrap{overflow-x:auto;border-radius:20px;border:1px solid var(--line)}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px;min-width:640px;background:#fff}
table.tbl th{
  text-align:left;font-family:'Prompt',sans-serif;font-weight:500;font-size:12.5px;
  color:var(--ink-2);background:var(--surface-2);padding:13px 16px;white-space:nowrap;
}
table.tbl td{padding:13px 16px;border-top:1px solid var(--line);vertical-align:middle}
table.tbl tr:hover td{background:#FBFCFF}
table.tbl .num{font-family:'Prompt',sans-serif;font-weight:500}

/* ---------- ใบสมัคร / สรุปผล ---------- */
.ticket{
  background:linear-gradient(135deg,#1B3B6F,#2C7E93);color:#fff;
  border-radius:var(--radius);padding:28px;text-align:center;position:relative;overflow:hidden;
}
.ticket::after{
  content:'';position:absolute;width:260px;height:260px;border-radius:50%;
  border:1.5px solid rgba(255,255,255,.14);right:-90px;top:-100px;
}
.ticket .lbl{font-size:12.5px;color:rgba(255,255,255,.7);letter-spacing:1.6px;text-transform:uppercase}
.ticket .code{
  font-family:'Prompt',sans-serif;font-weight:600;font-size:40px;letter-spacing:4px;
  margin:6px 0 4px;color:#fff;
}
.ticket p{color:rgba(255,255,255,.82);font-size:13.5px;margin:0}

.kv{display:grid;grid-template-columns:132px 1fr;gap:8px 16px;font-size:14px}
.kv dt{color:var(--muted);font-size:13px}
.kv dd{margin:0;color:var(--ink)}

.detail-hero{
  border-radius:var(--radius);padding:26px;display:flex;gap:24px;align-items:center;flex-wrap:wrap;
}
.detail-hero .mascot{width:132px;flex:none;filter:drop-shadow(0 12px 22px rgba(31,63,119,.16))}
.detail-hero .info{flex:1;min-width:240px}
.detail-hero h1{font-size:27px;margin-bottom:6px}
.meta-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.72);
  border-radius:14px;padding:8px 14px;font-size:13px;color:var(--ink-2);
}
.meta-pill svg{width:15px;height:15px;color:var(--navy-2)}

.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.info-box{background:var(--surface-2);border-radius:20px;padding:15px 18px}
.info-box .t{font-size:12px;color:var(--muted);margin-bottom:2px}
.info-box .v{font-family:'Prompt',sans-serif;font-weight:500;font-size:15px}

.rule-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.rule-list li{display:flex;gap:11px;font-size:14px;color:var(--ink-2);line-height:1.75}
.rule-list li::before{
  content:'';width:8px;height:8px;border-radius:50%;background:var(--blue);
  flex:none;margin-top:9px;
}

/* ---------- FAQ ---------- */
.faq details{
  background:var(--surface-2);border-radius:18px;padding:14px 18px;margin-bottom:10px;transition:.2s;
}
.faq details[open]{background:#fff;box-shadow:var(--shadow-sm)}
.faq summary{
  cursor:pointer;list-style:none;font-family:'Prompt',sans-serif;font-weight:500;font-size:14.5px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-size:20px;color:var(--muted);font-weight:300}
.faq details[open] summary::after{content:'–'}
.faq .ans{font-size:13.5px;color:var(--ink-2);padding-top:9px;line-height:1.85}

/* ---------- ว่างเปล่า ---------- */
.empty{text-align:center;padding:44px 20px;color:var(--muted)}
.empty .mascot{width:110px;margin:0 auto 14px;opacity:.85}
.empty h3{color:var(--ink-2);margin-bottom:5px}

/* ---------- ท้ายเว็บ ---------- */
.foot{
  background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:26px 28px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px;
}
.foot h4{font-size:15px;margin-bottom:9px}
.foot p,.foot a{font-size:13px;color:var(--muted);line-height:2}
.foot p svg{width:16px;height:16px;color:var(--navy-2)}
.foot a:hover{color:var(--navy)}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.foot-brand .logo{
  width:44px;height:44px;border-radius:14px;background:linear-gradient(140deg,var(--navy),var(--navy-2));
  color:#fff;display:grid;place-items:center;font-family:'Prompt',sans-serif;font-weight:600;
}
.foot-bottom{
  text-align:center;color:var(--muted);font-size:12.5px;padding:16px 0 6px;
}

/* ---------- แถบเมนูล่างสำหรับมือถือ ---------- */
.mobile-bar{display:none}

/* ---------- แอดมิน ---------- */
.admin-head{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px}
.stat-card{background:var(--surface);border-radius:22px;box-shadow:var(--shadow);padding:18px 20px;display:flex;gap:14px;align-items:center}
.stat-card .ic{width:52px;height:52px;border-radius:17px;display:grid;place-items:center;flex:none}
.stat-card .ic svg{width:26px;height:26px}
.stat-card b{display:block;font-family:'Prompt',sans-serif;font-weight:600;font-size:24px;line-height:1.3}
.stat-card span{font-size:12.5px;color:var(--muted)}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:34px;width:100%;max-width:400px}

/* ---------- ปุ่มเข้าสู่ระบบด้วย Google ---------- */
.or-line{display:flex;align-items:center;gap:12px;margin:18px 0;color:var(--muted);font-size:12.5px}
.or-line::before,.or-line::after{content:'';flex:1;height:1px;background:var(--line)}
.btn-google{
  background:#fff;color:#3C4043;border:1.5px solid #DADCE0;
  font-family:'Prompt',sans-serif;font-weight:500;
}
.btn-google:hover{background:#F8F9FC;border-color:#C9CCD1;box-shadow:var(--shadow-sm)}
.btn-google svg{width:19px;height:19px}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.filters .input{width:auto;min-width:150px;padding:9px 14px;font-size:13.5px}

/* ---------- ช่องวันที่ / เวลาแบบไทย ---------- */
.dtfield{position:relative}
.dt-display{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  text-align:left;cursor:pointer;font-family:inherit;
}
.dt-display svg{width:17px;height:17px;color:var(--muted);flex:none}
.dt-display.is-empty .dt-text{color:#B6BDD1}
.dt-display:hover{border-color:#C9D9FA;background:#fff}
.timefield{display:flex;align-items:center;gap:7px}
.timefield .input{width:auto;flex:1;min-width:74px;padding-right:32px;background-position:right 10px center}
.dt-sep{font-family:'Prompt',sans-serif;color:var(--muted)}
.dt-unit{font-size:13px;color:var(--muted);flex:none}

.dt-pop{
  position:absolute;top:calc(100% + 8px);left:0;z-index:80;width:286px;
  background:#fff;border-radius:20px;box-shadow:var(--shadow-lg);
  border:1px solid var(--line);padding:14px;
}
.dt-pop.to-left{left:auto;right:0}
.cal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.cal-title{font-family:'Prompt',sans-serif;font-weight:500;font-size:15px}
.cal-nav{
  width:32px;height:32px;border-radius:11px;border:0;cursor:pointer;
  background:var(--surface-2);color:var(--ink-2);font-size:18px;line-height:1;
}
.cal-nav:hover{background:var(--blue-soft);color:var(--navy)}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:3px;text-align:center}
.cal-dow{font-size:11.5px;color:var(--muted);padding:5px 0}
.cal-day{
  border:0;background:transparent;cursor:pointer;border-radius:11px;
  height:34px;font-family:inherit;font-size:13.5px;color:var(--ink);transition:.15s;
}
.cal-day:hover{background:var(--surface-2)}
.cal-day.today{color:var(--pink);font-weight:500}
.cal-day.sel{background:var(--navy);color:#fff;font-weight:500}
.cal-foot{display:flex;justify-content:space-between;margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
.cal-link{border:0;background:transparent;cursor:pointer;color:var(--navy-2);font-family:inherit;font-size:13px}
.cal-link:hover{text-decoration:underline}

/* ---------- หน้าต่างป๊อปอัป ---------- */
.modal{
  position:fixed;inset:0;z-index:200;display:none;
  background:rgba(20,30,55,.45);backdrop-filter:blur(3px);
  padding:24px;overflow-y:auto;
}
.modal.open{display:flex;align-items:flex-start;justify-content:center}
.modal-card{
  background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);
  width:100%;max-width:720px;margin:auto;padding:24px;
  animation:pop .22s ease-out;
}
.modal-card.narrow{max-width:460px}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:18px}
.modal-head p{font-size:13px;color:var(--muted);margin:2px 0 0}
.modal-x{
  width:38px;height:38px;border-radius:13px;border:0;cursor:pointer;flex:none;
  background:var(--surface-2);color:var(--ink-2);display:grid;place-items:center;
}
.modal-x:hover{background:var(--rose-soft);color:var(--pink)}
.modal-foot{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}

/* ---------- ตัวช่วย ---------- */
.mt-0{margin-top:0}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}
.mb-0{margin-bottom:0}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}
.text-muted{color:var(--muted)}
.text-center{text-align:center}
.flex{display:flex}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.between{justify-content:space-between}
.grow{flex:1}
.hr{height:1px;background:var(--line);margin:16px 0;border:0}
.thin{font-weight:200}

/* ---------- ตอบสนองหน้าจอ ---------- */
@media (max-width:1180px){
  .columns{grid-template-columns:1fr}
  .col-side{position:static}
  .hero-copy{max-width:100%}
  .hero-toys{opacity:.28}
}
@media (max-width:860px){
  .shell{padding:14px;gap:14px}
  .rail{
    position:fixed;left:0;right:0;bottom:0;top:auto;width:100%;flex:none;
    flex-direction:row;justify-content:space-around;min-height:0;
    border-radius:22px 22px 0 0;padding:7px 4px calc(7px + env(safe-area-inset-bottom));
    z-index:60;box-shadow:0 -8px 30px rgba(31,63,119,.1);gap:0;
  }
  .rail .brand,.rail-sep{display:none}
  /* ปุ่มล่างสุด (เข้าสู่ระบบ / ออกจากระบบ) ต้องไม่หายบนมือถือ */
  .rail-bottom{display:contents}
  /* ซ่อนเมนูที่ซ้ำกับเมนูอื่นเพื่อให้แถบล่างไม่แน่นเกินไป */
  .rail-dup{display:none}
  .rail-link{width:auto;flex:1;min-height:52px;border-radius:14px;padding:6px 2px;gap:3px}
  .rail-link svg{width:20px;height:20px}
  .rail-link .lb{font-size:9.5px;line-height:1.25}
  body{padding-bottom:86px}
  .modal{padding:12px}
  .modal-card{padding:18px}
  .dt-pop{width:270px}
  .hero{padding:26px 22px;min-height:auto}
  .hero h1{font-size:26px}
  .hero-toys{display:none}
  .foot{grid-template-columns:1fr;gap:18px}
  .topbar{flex-wrap:wrap}
  .topbar-chip{order:-1}
  .card-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
  .act-thumb{height:104px}
  .kv{grid-template-columns:1fr;gap:2px 0}
  .kv dd{margin-bottom:8px}
  h1{font-size:24px}
}
@media (max-width:420px){
  .card-grid{grid-template-columns:1fr 1fr}
  .btn{padding:11px 18px;font-size:14px}
}

@media print{
  .rail,.topbar,.no-print,.mobile-bar{display:none!important}
  body{background:#fff}
  .shell{padding:0;display:block}
  .panel,.ticket{box-shadow:none;border:1px solid #ddd}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}