@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@400;500;600;700;800&display=swap');
:root{font-family:'Noto Sans Thai',system-ui,sans-serif;color:#17253c;background:#f5f7fb}*{box-sizing:border-box}body{margin:0}header{background:#fff;border-bottom:1px solid #e6ebf2;padding:18px max(24px,calc((100vw - 1220px)/2));display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;box-shadow:0 2px 16px #183a5c08}.brand{font-size:22px;font-weight:800;color:#102944;text-decoration:none}.sub{font-size:12px;color:#64748b}.wrap{max-width:1220px;margin:30px auto;padding:0 22px}h1{font-size:26px;margin:0 0 6px}h2{font-size:19px;margin:28px 0 14px}.btn{background:#0876d1;color:#fff;border:0;border-radius:11px;padding:11px 17px;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 6px #0876d120}.btn:hover{filter:brightness(.96)}.btn.alt{background:#eaf3ff;color:#14569d;box-shadow:none}.panel{background:#fff;border:1px solid #e3e9f1;border-radius:17px;padding:22px;margin:17px 0;box-shadow:0 4px 18px #153d5c07}.stats{display:grid;grid-template-columns:1.8fr 1fr;gap:15px}.stat{min-height:142px;padding:25px;border-radius:16px;color:#fff;background:linear-gradient(115deg,#23a69b,#078bd0);box-shadow:0 6px 15px #0876d120;font-weight:700}.stat:nth-child(2){background:linear-gradient(120deg,#5667b9,#8a4bc5)}.stat b{display:block;font-size:39px;margin-top:7px}.departments{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.department{display:flex;flex-direction:column;min-height:120px;justify-content:space-between;border-radius:14px;padding:20px;text-decoration:none;color:#fff;background:linear-gradient(130deg,#e95154,#df367b);box-shadow:0 4px 12px #203c5b12}.department:nth-child(4n+2){background:linear-gradient(130deg,#9b43bf,#7044c5)}.department:nth-child(4n+3){background:linear-gradient(130deg,#4f6ec1,#5d57a7)}.department:nth-child(4n+4){background:linear-gradient(130deg,#239f94,#128b80)}.department b{font-size:15px;line-height:1.55}.department .muted{color:#ffffffdf}.muted{color:#65758a;font-size:13px}.filters{display:flex;gap:10px;flex-wrap:wrap}.filters a{border-radius:10px;padding:10px 16px;text-decoration:none;background:#eaf0f8;color:#304965;font-weight:600}.filters a.active{background:#0876d1;color:#fff}input,select,textarea{width:100%;padding:12px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;font:inherit}input:focus,select:focus,textarea:focus{outline:2px solid #92c9f8;outline-offset:1px}label{display:block;font-weight:600;margin:14px 0 7px}.tablewrap{overflow:auto}table{border-collapse:collapse;width:100%;background:#fff}th,td{text-align:left;padding:13px;border-bottom:1px solid #e2e8f0}th{background:#f1f5f9;font-size:13px}.actions{display:flex;gap:8px;flex-wrap:wrap}.danger{color:#b42318}.notice{background:#fff9e8;border:1px solid #ffe2a3;border-radius:12px;padding:12px;margin:15px 0}@media(max-width:900px){.departments{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){header{padding:15px}.wrap{margin:18px auto;padding:0 14px}h1{font-size:22px}.stats{grid-template-columns:1fr}.departments{grid-template-columns:1fr 1fr;gap:9px}.department{padding:13px;min-height:110px}.department b{font-size:13px}.panel{padding:14px}.actions .btn{font-size:12px;padding:9px 11px}}
/* Dashboard v2 — visually aligned with the supplied colorful card layout */
.hero{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 27px;border-radius:18px;background:linear-gradient(110deg,#e7f8f6,#e8f3ff);border:1px solid #d8e9f4}.hero h1{font-size:28px}.hero p{color:#53677e;margin:7px 0 0}.eyebrow{font-size:11px;font-weight:800;letter-spacing:1.6px;color:#008f9b;margin-bottom:8px}.hero-upload{white-space:nowrap}.stat-main{background:linear-gradient(110deg,#24a79d,#078dd3)}.stats{margin-top:19px}.stat{display:flex;flex-direction:column;gap:5px}.stat small{opacity:.85}.audience-tabs{display:grid;grid-template-columns:1fr 1fr;gap:14px}.audience-tab{display:flex;flex-direction:column;gap:4px;padding:19px;border-radius:15px;background:#fff;border:2px solid #e2eaf2;text-decoration:none;color:#173454;box-shadow:0 3px 12px #153d5c08}.audience-tab.selected{border-color:#0b88d1;background:#eef8ff}.audience-tab small{color:#65758a}.audience-icon{font-size:27px}.departments .department{min-height:125px}.department.chosen{outline:4px solid #fbbf24;outline-offset:2px}.department span{font-size:12px;color:#fff}.file-categories{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.file-categories a{padding:20px 10px;border:1px solid #dce7f1;border-radius:14px;background:#fff;text-align:center;text-decoration:none;font-weight:800;color:#173454}.file-pill{display:inline-block;background:#e8f3ff;color:#075f9d;padding:4px 10px;border-radius:7px;font-size:12px;font-weight:800}html{scroll-behavior:smooth}@media(max-width:650px){.hero{padding:17px;align-items:flex-start;flex-direction:column}.hero h1{font-size:23px}.audience-tabs{grid-template-columns:1fr}.file-categories{grid-template-columns:1fr 1fr}}

/* V3: vibrant, readable glass cards; counts without percent labels */
:root{background:#edf4fb}body{background:radial-gradient(circle at 8% 4%,#d7efff 0,transparent 32%),radial-gradient(circle at 92% 25%,#eedfff 0,transparent 38%),#edf4fb}
.glass-hero{background:linear-gradient(120deg,rgba(255,255,255,.85),rgba(222,243,255,.7));border:1px solid #fff;box-shadow:0 12px 35px #274d7a12;backdrop-filter:blur(18px)}
.glass-stat{border:1px solid #ffffff90;box-shadow:0 13px 26px #24548b20;backdrop-filter:blur(14px)}
.departments{grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}
.department.glass-card{position:relative;overflow:hidden;min-height:205px;padding:21px 23px;border:1px solid #ffffffb8;border-radius:21px;box-shadow:0 12px 25px #3c517b25;backdrop-filter:blur(18px);background:linear-gradient(125deg,#f03563e8,#fa7b91b8)}
.department.glass-card:nth-child(4n+2){background:linear-gradient(125deg,#843be2e8,#c075f2c7)}
.department.glass-card:nth-child(4n+3){background:linear-gradient(125deg,#2561dce8,#69a5f6c7)}
.department.glass-card:nth-child(4n+4){background:linear-gradient(125deg,#009a99e8,#3bdbc2bd)}
.department.glass-card:before{content:'';position:absolute;right:-36px;top:-64px;width:170px;height:170px;background:#ffffff2b;border-radius:50%;pointer-events:none}
.folder-heading{display:flex;justify-content:space-between;gap:14px;align-items:flex-start}.folder-heading b{font-size:17px}.folder-icon{font-size:30px;color:#fff;opacity:.9}
.doc-quantity{display:flex;gap:10px;align-items:baseline;margin:11px 0 10px}.doc-quantity strong{font-size:42px;line-height:1.2}.doc-quantity span{font-size:13px}
.glass-track{height:7px;border-radius:20px;background:#ffffff57;overflow:hidden}.glass-track i{height:100%;display:block;background:#fff;border-radius:20px;box-shadow:0 0 8px #fff8}
.department.glass-card small{font-size:12px;color:#fff;margin-top:9px}.department.glass-card:hover{transform:translateY(-3px);transition:transform .2s}
.icon-actions{flex-wrap:nowrap}.icon-action{display:inline-flex;justify-content:center;align-items:center;min-width:38px;min-height:38px;text-decoration:none;background:#edf5ff;border:1px solid #dce8fa;border-radius:10px;font-size:19px}.icon-action:hover{background:#dceaff}.unit-count{font-size:11px;opacity:.85;margin-left:5px}
@media(max-width:600px){.departments{grid-template-columns:1fr}.department.glass-card{min-height:185px}.folder-heading b{font-size:16px}.icon-actions{gap:4px}.icon-action{min-width:33px;min-height:35px}}

/* V4: one summary card, clean navigation and searchable unit picker */
.dashboard-top{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin:0 0 14px}.dashboard-top h1{margin:0}.stats-single{grid-template-columns:1fr;margin-top:0}.stats-single .stat{min-height:165px}.logout-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;color:#b42336;border:1px solid #ffd5d9;border-radius:13px;background:#fff1f2;text-decoration:none}.logout-icon:hover{background:#ffe0e4}.searchable-unit{display:flex;flex-direction:column;gap:8px}.searchable-unit select{min-height:160px}.searchable-unit select option{padding:8px}.upload-panel{max-width:840px;margin:0 auto}.department.glass-card{backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}@media(max-width:600px){.dashboard-top{align-items:flex-start}.dashboard-top .btn{width:100%}}

/* V6: compact three-column, distinct-color unit drill-down */
.doc-breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin:10px 0 18px;font-size:13px;color:#4b607a}.doc-breadcrumb a{color:#0876d1;text-decoration:none;font-weight:700}.doc-breadcrumb strong{color:#213752}.level-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.level-heading h2{margin:13px 0}.back-link{color:#0869ba;text-decoration:none;font-size:13px;font-weight:700;background:#fff;padding:8px 12px;border-radius:10px;border:1px solid #d9e6f4}.unit-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin:12px 0 25px}.unit-card{display:flex;flex-direction:column;min-width:0;min-height:148px;padding:14px 17px;border:1px solid #ffffffa8;border-radius:17px;box-shadow:0 8px 18px #2a4a7d1b;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:#fff;text-decoration:none;position:relative;overflow:hidden;transition:transform .18s,box-shadow .18s}.unit-card:hover{transform:translateY(-2px);box-shadow:0 12px 22px #2a4a7d2b}.unit-card:before{content:'';position:absolute;right:-35px;top:-62px;width:110px;height:110px;border-radius:50%;background:#ffffff25;pointer-events:none}.unit-card-top{display:flex;justify-content:space-between;align-items:center;line-height:1;font-size:18px;opacity:.95}.unit-arrow{font-size:17px}.unit-card-name{font-size:14px;font-weight:800;line-height:1.45;min-height:41px;margin:7px 0 5px;overflow-wrap:anywhere}.unit-card-count{display:flex;gap:7px;align-items:baseline;margin-top:auto;margin-bottom:9px}.unit-card-count strong{font-size:26px;line-height:1}.unit-card-count span{font-size:11px}.unit-card .glass-track{height:5px;background:#ffffff63}.unit-color-1{background:linear-gradient(125deg,#ef4267e8,#fa8198d9)}.unit-color-2{background:linear-gradient(125deg,#8541dbe8,#bc75e9db)}.unit-color-3{background:linear-gradient(125deg,#2468d9eb,#68a2f3d9)}.unit-color-4{background:linear-gradient(125deg,#059e9ce8,#4cd4c6d9)}.unit-color-5{background:linear-gradient(125deg,#e47c1be8,#f4b95cdb)}.unit-color-6{background:linear-gradient(125deg,#ba329de8,#ed83cdd9)}.unit-color-7{background:linear-gradient(125deg,#0c83b8e8,#62c7e9d9)}.unit-color-8{background:linear-gradient(125deg,#638c26e8,#a5cf58d9)}
@media(max-width:850px){.unit-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){.unit-cards{grid-template-columns:1fr;gap:10px}.unit-card{min-height:126px;padding:13px 15px}.unit-card-name{min-height:0}.unit-card-count{margin-top:8px}}

/* V7: seamless compact header; upload action alongside logout */
header{min-height:74px;padding:12px max(22px,calc((100vw - 1220px)/2));gap:14px;box-shadow:0 1px 10px #183a5c08;background:rgba(255,255,255,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
header .brand{font-size:20px;line-height:1.3;letter-spacing:-.35px}header .sub{font-size:11px;margin-top:2px}
.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:nowrap}
.header-upload{height:42px;padding:9px 17px;border-radius:11px;white-space:nowrap;font-size:14px;box-shadow:0 3px 9px #0876d121}
header .logout-icon{height:42px;width:42px;border-radius:11px;flex-shrink:0}
.wrap{margin:22px auto}.dashboard-top{margin:0 0 12px}.dashboard-top h1{font-size:26px;letter-spacing:-.3px}
@media(max-width:600px){header{padding:12px 14px;min-height:66px;flex-wrap:nowrap;gap:8px}header .brand{font-size:15px}header .sub{font-size:9px;line-height:1.3}.header-actions{gap:6px}.header-upload{height:37px;padding:7px 9px;font-size:11px}header .logout-icon{width:37px;height:37px}.dashboard-top h1{font-size:21px}.wrap{margin:17px auto}}
@media(max-width:390px){header .brand{font-size:13px}.header-upload{font-size:10px;padding:7px}.sub{max-width:175px}}

/* V8: polished interior views and restrained interactive motion */
:root{--motion-ease:cubic-bezier(.2,.75,.25,1)}
.page-login .wrap,.page-upload .wrap{max-width:1120px;margin:28px auto 60px}
.interactive-panel{position:relative;isolation:isolate;overflow:hidden;border:1px solid rgba(255,255,255,.9);border-radius:24px;background:linear-gradient(155deg,rgba(255,255,255,.97),rgba(255,255,255,.86));box-shadow:0 18px 55px rgba(45,79,130,.12),inset 0 1px 0 #fff;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);padding:32px 36px;animation:panelEnter .5s var(--motion-ease) both}
.interactive-panel:before{content:'';position:absolute;inset:0 0 auto;height:5px;background:linear-gradient(90deg,#0b88dc,#7b4be2,#f24d8b);z-index:2}
.interactive-panel:after{content:'';position:absolute;right:-125px;top:-145px;width:290px;height:290px;border-radius:50%;background:radial-gradient(circle,rgba(135,94,232,.09),transparent 72%);pointer-events:none;z-index:-1}
.login-panel{max-width:510px;margin:28px auto 0}.upload-panel{max-width:850px;margin:0 auto}
.form-heading{display:flex;align-items:center;gap:15px;margin-bottom:18px}.form-heading h1{font-size:25px;line-height:1.35;margin:0}.form-icon{display:grid;place-items:center;width:54px;height:54px;flex-shrink:0;font-size:25px;border-radius:16px;background:linear-gradient(135deg,#e2f3ff,#eee6ff);box-shadow:inset 0 1px 0 #fff,0 5px 14px #316ab112}.form-kicker{font-size:10px;letter-spacing:1.6px;font-weight:800;color:#6b7c97}
.interactive-panel .muted{line-height:1.75}.interactive-panel form{margin-top:16px}.interactive-panel label{font-size:14px;margin:17px 0 7px;color:#233b5c}.interactive-panel input:not([type=hidden]),.interactive-panel select{min-height:49px;border-radius:12px;border:1px solid #d6e1ef;background:rgba(250,252,255,.85);box-shadow:inset 0 1px 2px #264d6b04;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s}
.interactive-panel input:not([type=hidden]):hover,.interactive-panel select:hover{border-color:#82b7e9;background:#fff;box-shadow:0 4px 14px #2e77b50c}
.interactive-panel input:not([type=hidden]):focus,.interactive-panel select:focus{outline:none;border-color:#188be1;background:#fff;box-shadow:0 0 0 4px rgba(32,144,227,.13),0 6px 20px #2785ce12}
.interactive-panel select:disabled{opacity:.55;cursor:not-allowed;background:#f2f5f9}
.interactive-panel input[type=file]{padding:10px 12px;cursor:pointer;border-style:dashed;border-width:2px;background:#f4f9ff}.interactive-panel input[type=file]:hover,.interactive-panel input[type=file].file-selected{background:#eaf7ff;border-color:#2295dc}
.interactive-panel input[type=file]::file-selector-button{border:0;border-radius:8px;background:#dceeff;color:#155d9a;padding:8px 13px;font:inherit;font-weight:700;margin-right:13px;cursor:pointer}
.interactive-panel .btn-glow{min-height:46px;padding:10px 22px;border-radius:12px;background:linear-gradient(120deg,#0574d4,#208fe7);box-shadow:0 8px 20px #1475cb30;gap:12px;transition:transform .2s var(--motion-ease),box-shadow .2s,filter .2s}
.interactive-panel .btn-glow:hover{transform:translateY(-2px);box-shadow:0 12px 26px #1475cb3c;filter:brightness(1.04)}.interactive-panel .btn-glow:active{transform:translateY(0) scale(.985)}.interactive-panel .btn-glow.is-busy{opacity:.72;pointer-events:none}
.interactive-panel .danger{border-radius:10px;background:#fff0f0;padding:10px 12px}
@keyframes panelEnter{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(hover:hover){.department.glass-card,.unit-card,.icon-action,.back-link,.btn,.logout-icon{transition:transform .22s var(--motion-ease),box-shadow .22s var(--motion-ease),filter .22s,border-color .22s}.department.glass-card:hover,.unit-card:hover{transform:translateY(-4px);filter:saturate(1.08);box-shadow:0 16px 30px #2a4a7d2c}.icon-action:hover,.back-link:hover{transform:translateY(-2px)}.logout-icon:hover{transform:translateY(-2px)}}
@media(max-width:600px){.page-login .wrap,.page-upload .wrap{margin:18px auto 35px}.interactive-panel{padding:23px 18px;border-radius:18px}.form-heading h1{font-size:21px}.form-icon{width:45px;height:45px;font-size:21px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* V10: compact document actions */
.icon-actions{display:flex;align-items:center;flex-wrap:wrap;gap:7px}
.icon-actions .delete-document-form{display:inline-flex;margin:0;padding:0}
.icon-actions button.icon-action{font:inherit;cursor:pointer;line-height:1.2}
.icon-actions .share-document:hover{background:#dff6f5;transform:translateY(-2px)}
.icon-actions .delete-document:hover{background:#ffe3e6;transform:translateY(-2px)}

/* V12: student dashboard is a public download-only surface */
.page-student .header-actions{display:none!important}
.page-student .student-search-row{position:relative;display:flex;align-items:center;width:min(100%,370px);margin:12px 0 14px auto}
.page-student .student-search-row input{width:100%;height:46px;padding:10px 16px 10px 44px;border:1px solid #d4e1f0;border-radius:14px;background:rgba(255,255,255,.87);box-shadow:0 5px 18px #4568a20c;outline:none;font:inherit;transition:border-color .2s,box-shadow .2s}
.page-student .student-search-row input:focus{border-color:#1684d7;box-shadow:0 0 0 4px #1684d71b,0 7px 20px #4568a21b}
.page-student .student-search-row .search-icon{position:absolute;left:15px;font-size:26px;line-height:1;color:#337bb2;pointer-events:none}
.page-student tr.document-row[hidden]{display:none!important}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:600px){.page-student .student-search-row{width:100%}}
/* V13: department units and document list on the same screen */
.unit-card.is-selected{outline:3px solid #ffbf36;outline-offset:2px;box-shadow:0 12px 28px #263e7640;transform:translateY(-2px)}
.unit-card:focus-visible{outline:3px solid #fff;outline-offset:2px}
tr[hidden],#filtered-empty[hidden]{display:none!important}
#documents{scroll-margin-top:100px}
.student-search-row form{width:100%;max-width:420px;margin-left:auto}
.student-search-row form input{width:100%}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}