/* ===== ใบประกอบวิชาชีพจ๊วดๆ — Design System ===== */
@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700;800&display=swap');

:root{
  --pink:#ff6fb0;
  --pink-dark:#ec4899;
  --purple:#8b5cf6;
  --purple-dark:#7c3aed;
  --blue:#38bdf8;
  --teal:#14b8a6;
  --yellow:#fbbf24;
  --orange:#fb923c;
  --green:#22c55e;
  --red:#ef4444;
  --ink:#3a2e4d;
  --ink-soft:#6b5b8a;
  --bg:#fff8fd;
  --bg-soft:#f5f1ff;
  --card:#ffffff;
  --border:#f0e3f7;
  --shadow: 0 8px 24px rgba(140, 90, 200, .12);
  --shadow-lg: 0 16px 40px rgba(140, 90, 200, .18);
  --radius: 20px;
  --radius-sm: 12px;
  --grad-main: linear-gradient(135deg, var(--pink) 0%, var(--purple) 100%);
  --grad-soft: linear-gradient(135deg, #ffe3f3 0%, #ede4ff 100%);
  --grad-teal: linear-gradient(135deg, #5eead4 0%, #38bdf8 100%);
  --grad-warm: linear-gradient(135deg, #fde68a 0%, #fb923c 100%);
}

.icon{display:inline-block; vertical-align:-4px; flex-shrink:0;}
.btn .icon{vertical-align:-3px;}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:'Sarabun',sans-serif;
  background:var(--bg);
  color:var(--ink);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Sarabun',sans-serif; margin:0 0 .4em; font-weight:700;}
a{color:var(--purple-dark); text-decoration:none;}
img{max-width:100%;display:block;}
::selection{background:var(--pink); color:#fff;}

/* scrollbar */
::-webkit-scrollbar{width:10px; height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:#e8d6f5; border-radius:10px;}
::-webkit-scrollbar-thumb:hover{background:var(--pink);}

.container{max-width:1280px; margin:0 auto; padding:0 20px;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:11px 22px; border-radius:999px; border:none; cursor:pointer;
  font-family:inherit; font-weight:600; font-size:15px; white-space:nowrap;
  transition:transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn:active{transform:scale(.96);}
.btn-primary{background:var(--grad-main); color:#fff; box-shadow:0 6px 18px rgba(236,72,153,.35);}
.btn-primary:hover{box-shadow:0 8px 22px rgba(236,72,153,.45); transform:translateY(-1px);}
.btn-secondary{background:#fff; color:var(--purple-dark); border:2px solid var(--purple); }
.btn-secondary:hover{background:var(--bg-soft);}
.btn-ghost{background:transparent; color:var(--ink-soft);}
.btn-ghost:hover{background:var(--bg-soft); color:var(--ink);}
.btn-danger{background:linear-gradient(135deg,#fb7185,#ef4444); color:#fff;}
.btn-success{background:linear-gradient(135deg,#4ade80,#22c55e); color:#fff;}
.btn-sm{padding:6px 14px; font-size:13px;}
.btn-icon{width:38px; height:38px; padding:0; border-radius:50%;}
.btn:disabled{opacity:.5; cursor:not-allowed; transform:none;}
.btn-block{width:100%;}

/* ===== Forms ===== */
label{display:block; font-weight:500; font-size:14px; margin-bottom:6px; color:var(--ink-soft);}
.field{margin-bottom:16px;}
.input,.select,.textarea{
  width:100%; padding:12px 16px; border-radius:14px; border:2px solid var(--border);
  background:#fff; font-family:inherit; font-size:15px; color:var(--ink); outline:none;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.input:focus,.select:focus,.textarea:focus{border-color:var(--purple); box-shadow:0 0 0 4px rgba(139,92,246,.12);}
.textarea{resize:vertical; min-height:90px;}
.input-icon-wrap{position:relative;}
.input-icon-wrap .input{padding-left:48px;}
.input-icon-wrap .field-icon{position:absolute; left:15px; top:50%; transform:translateY(-50%); opacity:.55; display:flex; align-items:center; justify-content:center; pointer-events:none;}
.hint{font-size:12.5px; color:var(--ink-soft); margin-top:5px;}
.error-text{font-size:13px; color:var(--red); margin-top:5px; font-weight:500;}
.field-row{display:flex; gap:14px; flex-wrap:wrap;}
.field-row > .field{flex:1; min-width:180px;}
.radio-group,.check-group{display:flex; gap:16px; flex-wrap:wrap;}
.radio-opt,.check-opt{display:flex; align-items:center; gap:8px; font-size:14.5px; cursor:pointer;}
.radio-opt input,.check-opt input{accent-color:var(--purple); width:17px; height:17px;}

/* toggle switch */
.switch{position:relative; display:inline-block; width:46px; height:26px; flex-shrink:0;}
.switch input{opacity:0; width:0; height:0;}
.switch .slider{position:absolute; inset:0; background:#e3d9f0; border-radius:999px; cursor:pointer; transition:.2s;}
.switch .slider:before{content:""; position:absolute; width:20px; height:20px; left:3px; top:3px; background:#fff; border-radius:50%; transition:.2s; box-shadow:0 2px 4px rgba(0,0,0,.2);}
.switch input:checked + .slider{background:var(--grad-main);}
.switch input:checked + .slider:before{transform:translateX(20px);}

/* ===== Cards ===== */
.card{background:var(--card); border-radius:var(--radius); box-shadow:var(--shadow); padding:22px; border:1px solid var(--border);}
.card-flat{background:var(--card); border-radius:var(--radius); border:1px solid var(--border); padding:22px;}

/* ===== Badges ===== */
.badge{display:inline-flex; align-items:center; gap:5px; padding:4px 12px; border-radius:999px; font-size:12.5px; font-weight:600;}
.badge-purple{background:#ede4ff; color:var(--purple-dark);}
.badge-pink{background:#ffe3f3; color:var(--pink-dark);}
.badge-green{background:#dcfce7; color:#16a34a;}
.badge-yellow{background:#fef3c7; color:#b45309;}
.badge-red{background:#fee2e2; color:#dc2626;}
.badge-blue{background:#e0f2fe; color:#0284c7;}
.badge-gray{background:#f1f0f4; color:#6b7280;}
.dot{width:8px; height:8px; border-radius:50%; display:inline-block;}

/* ===== Table ===== */
.table-wrap{overflow-x:auto; border-radius:var(--radius); border:1px solid var(--border);}
table{width:100%; border-collapse:collapse; min-width:640px; background:#fff;}
thead th{text-align:left; font-size:13px; text-transform:uppercase; letter-spacing:.03em; color:var(--ink-soft); background:var(--bg-soft); padding:14px 16px; white-space:nowrap;}
tbody td{padding:14px 16px; border-top:1px solid var(--border); font-size:14.5px; vertical-align:middle;}
tbody tr:hover{background:#fffaf5;}

/* ===== Modal ===== */
.modal-overlay{position:fixed; inset:0; background:rgba(58,46,77,.45); backdrop-filter:blur(2px); display:none; align-items:center; justify-content:center; z-index:1000; padding:20px;}
.modal-overlay.open{display:flex;}
.modal{background:#fff; border-radius:24px; max-width:560px; width:100%; max-height:88vh; overflow-y:auto; box-shadow:var(--shadow-lg); animation:pop .18s ease;}
.modal.modal-lg{max-width:820px;}
.modal-head{display:flex; align-items:center; justify-content:space-between; padding:20px 24px; border-bottom:1px solid var(--border); position:sticky; top:0; background:#fff; z-index:2; border-radius:24px 24px 0 0;}
.modal-body{padding:24px;}
.modal-foot{padding:16px 24px; border-top:1px solid var(--border); display:flex; justify-content:flex-end; gap:10px; position:sticky; bottom:0; background:#fff;}
@keyframes pop{from{transform:scale(.94); opacity:0;} to{transform:scale(1); opacity:1;}}

/* ===== Toast ===== */
#toast-root{position:fixed; top:20px; right:20px; z-index:2000; display:flex; flex-direction:column; gap:10px;}
.toast{background:#fff; border-radius:14px; box-shadow:var(--shadow-lg); padding:14px 20px; font-size:14.5px; font-weight:500; border-left:5px solid var(--purple); min-width:240px; animation:slidein .2s ease;}
.toast.success{border-color:var(--green);}
.toast.error{border-color:var(--red);}
.toast.info{border-color:var(--blue);}
@keyframes slidein{from{transform:translateX(30px); opacity:0;} to{transform:translateX(0); opacity:1;}}

/* ===== Empty state ===== */
.empty-state{text-align:center; padding:50px 20px; color:var(--ink-soft);}
.empty-state .emoji{font-size:52px; display:block; margin-bottom:12px;}

/* ===== Tabs / chips ===== */
.chip-row{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:20px;}
.chip{padding:9px 18px; border-radius:999px; background:#fff; border:2px solid var(--border); cursor:pointer; font-weight:500; font-size:14px; color:var(--ink-soft); transition:.15s;}
.chip:hover{border-color:var(--pink);}
.chip.active{background:var(--grad-main); color:#fff; border-color:transparent;}

/* ===== Utility ===== */
.flex{display:flex;} .flex-col{display:flex; flex-direction:column;}
.items-center{align-items:center;} .justify-between{justify-content:space-between;} .justify-center{justify-content:center;}
.gap-6{gap:6px;} .gap-8{gap:8px;} .gap-10{gap:10px;} .gap-14{gap:14px;} .gap-20{gap:20px;}
.wrap{flex-wrap:wrap;}
.mt-0{margin-top:0;} .mb-0{margin-bottom:0;}
.text-soft{color:var(--ink-soft);} .text-sm{font-size:13.5px;} .text-center{text-align:center;}
.grid{display:grid; gap:20px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-auto{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));}
@media(max-width:960px){.grid-4{grid-template-columns:repeat(2,1fr);} .grid-3{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}

/* progress bar */
.progress{height:10px; background:var(--bg-soft); border-radius:999px; overflow:hidden;}
.progress > div{height:100%; background:var(--grad-main); border-radius:999px; transition:width .3s ease;}

/* avatar */
.avatar{width:42px; height:42px; border-radius:50%; background:var(--grad-main); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:700; flex-shrink:0;}

/* decorative blobs */
.blob{position:absolute; border-radius:50%; filter:blur(0px); opacity:.55; z-index:0;}

/* ============ LANDING PAGE ============ */
.landing{min-height:100vh; display:flex; overflow:hidden; position:relative;}
.landing-promo{
  flex:1.1; background:var(--grad-main); color:#fff; padding:60px 50px; position:relative; overflow:hidden;
  display:flex; flex-direction:column; justify-content:center;
}
.landing-promo::before{content:""; position:absolute; width:340px; height:340px; background:rgba(255,255,255,.12); border-radius:50%; top:-100px; right:-100px;}
.landing-promo::after{content:""; position:absolute; width:220px; height:220px; background:rgba(255,255,255,.1); border-radius:50%; bottom:-60px; left:-60px;}
.landing-promo > *{position:relative; z-index:1;}
.landing-logo{margin-bottom:14px;}
.landing-logo img{width:52px; height:52px; border-radius:50%; object-fit:cover; border:2px solid rgba(255,255,255,.6); box-shadow:0 6px 18px rgba(0,0,0,.15);}
.landing-promo h1{font-size:clamp(28px,4vw,42px); color:#fff; margin-bottom:14px; line-height:1.25;}
.landing-promo p{font-size:16.5px; opacity:.92; line-height:1.7; max-width:520px;}
.promo-features{display:flex; flex-direction:column; gap:14px; margin:28px 0;}
.promo-feature{display:flex; align-items:center; gap:12px; font-size:15px;}
.promo-feature .ic{width:38px; height:38px; border-radius:12px; background:rgba(255,255,255,.18); display:flex; align-items:center; justify-content:center; flex-shrink:0;}
.fb-btn{background:#fff; color:#1877F2; padding:13px 26px; border-radius:999px; font-weight:700; display:inline-flex; align-items:center; gap:10px; width:fit-content; box-shadow:0 8px 20px rgba(0,0,0,.15); transition:.15s;}
.fb-btn:hover{transform:translateY(-2px); box-shadow:0 10px 24px rgba(0,0,0,.2);}

.landing-form-wrap{flex:0.9; display:flex; align-items:center; justify-content:center; padding:40px 30px; background:var(--bg);}
.login-box{width:100%; max-width:380px;}
.login-box h2{font-size:26px;}
.login-box .sub{color:var(--ink-soft); margin-bottom:26px; font-size:14.5px;}
.demo-note{background:var(--bg-soft); border-radius:14px; padding:12px 16px; font-size:12.8px; color:var(--ink-soft); margin-top:18px; line-height:1.7;}
.forgot-link{text-align:right; margin:-8px 0 18px;}
.forgot-link a{font-size:13.5px; font-weight:500;}
.admin-link-row{text-align:center; margin-top:16px;}
.admin-link-row a{font-size:13px; color:var(--ink-soft); font-weight:500;}
.admin-link-row a:hover{color:var(--purple-dark);}
.mobile-brand{display:none; align-items:center; gap:12px; margin-bottom:22px;}
.mobile-brand img{width:44px; height:44px; border-radius:50%; object-fit:cover; border:1px solid var(--border);}
.mobile-brand span{font-family:'Sarabun'; font-weight:700; font-size:17px; color:var(--purple-dark);}

@media(max-width:900px){
  .landing{flex-direction:column;}
  .landing-promo{display:none;}
  .landing-form-wrap{padding:36px 22px; min-height:100vh;}
  .mobile-brand{display:flex;}
}

/* ============ APP SHELL (member/admin) ============ */
.app-shell{display:flex; min-height:100vh;}
.sidebar{
  width:250px; flex-shrink:0; background:#fff; border-right:1px solid var(--border);
  padding:22px 16px; display:flex; flex-direction:column; position:sticky; top:0; height:100vh; overflow-y:auto; z-index:50;
}
.sidebar-brand{display:flex; align-items:center; gap:10px; padding:6px 10px 22px; font-weight:700; font-size:17px; color:var(--purple-dark);}
.brand-logo{width:32px; height:32px; border-radius:50%; object-fit:cover; flex-shrink:0; border:1px solid var(--border);}
.sidebar-brand .em{font-size:26px;}
.nav-item{display:flex; align-items:center; gap:12px; padding:12px 14px; border-radius:14px; color:var(--ink-soft); font-weight:500; font-size:14.5px; cursor:pointer; margin-bottom:4px; transition:.15s;}
.nav-item .ic{width:20px; height:20px; display:flex; align-items:center; justify-content:center; flex-shrink:0;}
.nav-item:hover{background:var(--bg-soft); color:var(--ink);}
.nav-item.active{background:var(--grad-main); color:#fff; box-shadow:0 6px 16px rgba(236,72,153,.3);}
.nav-section-label{font-size:11.5px; text-transform:uppercase; letter-spacing:.05em; color:#c3b6d9; padding:16px 14px 6px; font-weight:700;}
.sidebar-footer{margin-top:auto; padding-top:14px; border-top:1px solid var(--border);}

.main-area{flex:1; min-width:0; display:flex; flex-direction:column;}
.topbar{
  display:flex; align-items:center; justify-content:space-between; padding:16px 26px; background:#fff;
  border-bottom:1px solid var(--border); position:sticky; top:0; z-index:40; gap:14px;
}
.topbar h1{font-size:19px; margin:0;}
.hamburger{display:none; background:none; border:none; font-size:22px; cursor:pointer; color:var(--purple-dark);}
.page-content{padding:26px; flex:1;}
.overlay-bg{display:none; position:fixed; inset:0; background:rgba(0,0,0,.4); z-index:49;}

/* bottom tab bar (mobile only, member area) */
.bottom-nav{
  display:none;
  position:fixed; left:0; right:0; bottom:0; z-index:60;
  background:#fff; border-top:1px solid var(--border);
  box-shadow:0 -4px 16px rgba(0,0,0,.06);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom, 0px));
}
.bottom-nav .nav-item{
  flex:1; flex-direction:column; justify-content:center; gap:3px; margin-bottom:0; padding:6px 2px;
  border-radius:12px; font-size:11px; font-weight:600; text-align:center;
}
.bottom-nav .nav-item .ic{width:22px; height:22px; margin:0 auto;}
.bottom-nav .nav-item:hover{background:transparent; color:var(--ink-soft);}
.bottom-nav .nav-item.active{background:transparent; color:var(--purple-dark); box-shadow:none;}

@media(max-width:900px){
  .sidebar{position:fixed; left:-260px; top:0; box-shadow:var(--shadow-lg); transition:.2s;}
  .sidebar.open{left:0;}
  .hamburger{display:block;}
  .overlay-bg.open{display:block;}
  .page-content{padding:18px;}
  .bottom-nav{display:flex;}
  body.has-bottom-nav .page-content{padding-bottom:92px;}
}

/* stat cards */
.stat-card{background:#fff; border-radius:var(--radius); padding:20px; box-shadow:var(--shadow); display:flex; flex-direction:column; gap:8px; position:relative; overflow:hidden;}
.stat-card .ic{width:44px; height:44px; border-radius:14px; display:flex; align-items:center; justify-content:center; margin-bottom:4px;}
.stat-card .num{font-size:28px; font-weight:700;}
.stat-card .lbl{font-size:13.5px; color:var(--ink-soft); font-weight:500;}
.stat-card .trend{font-size:12.5px; font-weight:600;}
.trend.up{color:var(--green);} .trend.down{color:var(--red);}

/* video card */
.video-card{background:#fff; border-radius:18px; overflow:hidden; box-shadow:var(--shadow); cursor:pointer; transition:.15s; border:1px solid var(--border);}
.video-card:hover{transform:translateY(-4px); box-shadow:var(--shadow-lg);}
.video-thumb{width:100%; aspect-ratio:16/9; background:var(--grad-soft) center/cover no-repeat; position:relative; display:flex; align-items:center; justify-content:center; font-size:34px;}
.video-thumb .play-ic{position:absolute; width:46px; height:46px; background:rgba(255,255,255,.9); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:18px; color:var(--purple-dark);}
.video-thumb .live-badge{position:absolute; top:10px; left:10px; background:var(--red); color:#fff; font-size:11px; font-weight:700; padding:3px 10px; border-radius:999px; display:flex; align-items:center; gap:5px;}
.video-thumb .dur-badge{position:absolute; bottom:8px; right:8px; background:rgba(0,0,0,.65); color:#fff; font-size:11px; padding:2px 8px; border-radius:6px;}
.video-info{padding:14px 16px;}
.video-info h4{font-size:15px; margin-bottom:6px; line-height:1.4; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;}
.video-meta{display:flex; align-items:center; justify-content:space-between; margin-top:8px;}

/* quiz card */
.quiz-card{background:#fff; border-radius:18px; padding:20px; box-shadow:var(--shadow); border:1px solid var(--border); display:flex; flex-direction:column; gap:10px;}
.quiz-card h4{font-size:16px;}
.quiz-card .quiz-meta-row{display:flex; gap:14px; flex-wrap:wrap; font-size:13px; color:var(--ink-soft);}

/* question builder */
.qb-question{background:#fff; border:1px solid var(--border); border-radius:18px; padding:20px; margin-bottom:16px; position:relative; border-left:5px solid var(--purple);}
.qb-question.type-truefalse{border-left-color:var(--blue);}
.qb-question.type-multi{border-left-color:var(--orange);}
.qb-question.type-short{border-left-color:var(--teal);}
.qb-option-row{display:flex; align-items:center; gap:10px; margin-bottom:8px;}
.qb-option-row input[type=text]{flex:1;}
.qb-toolbar{display:flex; justify-content:flex-end; gap:6px; margin-top:14px; padding-top:14px; border-top:1px solid var(--border);}

/* settings panel */
.settings-panel{background:var(--bg-soft); border-radius:18px; padding:20px; margin-bottom:20px;}

/* charts */
.chart-wrap{position:relative; width:100%;}
canvas{display:block; width:100%; max-width:100%;}

/* pop animation reuse */
.card, .stat-card, .video-card, .quiz-card{animation:fadeup .35s ease;}
@keyframes fadeup{from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:translateY(0);}}

.section-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; flex-wrap:wrap; gap:10px;}
.section-head h2{font-size:21px; margin:0;}

.video-detail-grid{display:grid; grid-template-columns:2fr 1fr; gap:20px; align-items:start;}
@media(max-width:900px){.video-detail-grid{grid-template-columns:1fr;}}

/* shortcut tiles (member home) */
.shortcut-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px 10px; margin-bottom:30px;}
.shortcut-tile{display:flex; flex-direction:column; align-items:center; gap:8px; text-decoration:none; cursor:pointer; background:none; border:none; font-family:inherit;}
.shortcut-tile .shortcut-ic{width:56px; height:56px; border-radius:18px; display:flex; align-items:center; justify-content:center; transition:transform .15s ease;}
.shortcut-tile:hover .shortcut-ic{transform:translateY(-3px);}
.shortcut-tile span.label{font-size:12.5px; font-weight:500; color:var(--ink); text-align:center; line-height:1.3;}

.timer-pill{background:var(--grad-warm); color:#7c2d12; font-weight:700; padding:8px 18px; border-radius:999px; font-size:15px;}

.answer-review.correct{background:#f0fdf4; border-color:#86efac;}
.answer-review.wrong{background:#fef2f2; border-color:#fecaca;}
.answer-review{border:2px solid var(--border); border-radius:14px; padding:14px 16px; margin-bottom:12px;}