/* ═══════════════════════════════════════════════════════════
   KN Connect+ Design System
   Shared across the whole "ระบบบันทึกเวลาเรียน" (check) app —
   ported verbatim (tokens + components) from teacher/index.html
   so every screen in this app looks and feels like one system.
═══════════════════════════════════════════════════════════ */

/* ─── Variables ───
   Brand tone: orange -> pink (previously teal -> indigo), same glass style.
   --c-primary/--c-violet stay at full brand vibrancy for icon-only badges (only need
   3:1 for graphics per WCAG 1.4.11, verified below); --c-btn-grad-1/2 are a deeper
   pair reserved for WHITE TEXT on a gradient (buttons, modal headers), which needs
   4.5:1 (WCAG 1.4.3 AA) — same pair works in both themes since white-on-color
   contrast doesn't depend on the surrounding page theme. --c-warning/--c-coral were
   nudged (yellow-gold / pure red) so the "late"/"absent" status colors stay clearly
   distinct from the new orange-pink brand instead of blending into it. */
:root{
  --c-bg:#fef6f0;
  --c-surface:#ffffff;
  --c-surface-rgb:255,255,255;
  --c-surface-soft:#fdece0;
  --c-ink:#1a1b2e;
  --c-ink-soft:#62638c;
  --c-primary:#ea580c;
  --c-primary-rgb:234,88,12;
  --c-primary-deep:#c2410c;
  --c-primary-deep-rgb:194,65,12;
  --c-violet:#ec4899;
  --c-btn-grad-1:#c2410c;
  --c-btn-grad-2:#be185d;
  --c-violet-rgb:236,72,153;
  --c-glow:#facc15;
  --c-glow-rgb:250,204,21;
  --c-coral:#b91c1c;
  --c-coral-rgb:185,28,28;
  --c-success:#22c55e;
  --c-success-rgb:34,197,94;
  --c-warning:#a16207;
  --c-warning-rgb:161,98,7;
  --c-border:#f5dcd0;
  --glass-border:rgba(255,255,255,.55);
  --glass-highlight:rgba(255,255,255,.5);
  --glass-blur:22px;
  --sidebar-w:240px;
  --topbar-h:60px;
  --bnav-h:65px;
  --radius:16px;
  --radius-sm:10px;
  --ease:cubic-bezier(.22,1,.36,1);
}
[data-theme="dark"]{
  --c-bg:#180f09;
  --c-surface:#2b1a10;
  --c-surface-rgb:43,26,16;
  --c-surface-soft:#34210f;
  --c-ink:#fdf0e8;
  --c-ink-soft:#c9b8a8;
  --c-primary:#fb923c;
  --c-primary-rgb:251,146,60;
  --c-primary-deep:#fdba74;
  --c-primary-deep-rgb:253,186,116;
  --c-violet:#f472b6;
  --c-violet-rgb:244,114,182;
  --c-glow:#fcd34d;
  --c-glow-rgb:252,211,77;
  --c-coral:#f87171;
  --c-coral-rgb:248,113,113;
  --c-success:#4ade80;
  --c-success-rgb:74,222,128;
  --c-warning:#fde047;
  --c-warning-rgb:253,224,71;
  --c-border:#4a2c17;
  --glass-border:rgba(255,255,255,.12);
  --glass-highlight:rgba(255,255,255,.08);
}
*{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;font-family:'Sarabun','Inter',system-ui,sans-serif;color:var(--c-ink);background:var(--c-bg);-webkit-font-smoothing:antialiased;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ─── Aurora (login bg) ─── */
.aurora{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;}
.aurora span{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;will-change:transform;}
.aurora span:nth-child(1){width:60vmax;height:60vmax;top:-20vmax;left:-18vmax;background:radial-gradient(circle at 30% 30%,#f97316,transparent 70%);animation:f1 22s ease-in-out infinite;}
.aurora span:nth-child(2){width:55vmax;height:55vmax;bottom:-22vmax;right:-16vmax;background:radial-gradient(circle at 60% 60%,#ec4899,transparent 70%);animation:f2 26s ease-in-out infinite;}
.aurora span:nth-child(3){width:40vmax;height:40vmax;top:30%;right:-10vmax;background:radial-gradient(circle,#facc15,transparent 70%);animation:f3 20s ease-in-out infinite;}
@keyframes f1{0%,100%{transform:translate(0,0)}50%{transform:translate(6vmax,8vmax)}}
@keyframes f2{0%,100%{transform:translate(0,0)}50%{transform:translate(-7vmax,-6vmax)}}
@keyframes f3{0%,100%{transform:translate(0,0)}50%{transform:translate(-4vmax,5vmax)}}
@media(prefers-reduced-motion:reduce){.aurora span{animation:none}}

/* ─── Login wrapper ─── */
.login-wrap{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px;background:transparent;}
.login-card{
  width:100%;max-width:400px;
  background:rgba(var(--c-surface-rgb),.82);
  backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  border:1px solid var(--glass-border);
  border-radius:28px;
  box-shadow:0 24px 60px -20px rgba(var(--c-primary-deep-rgb),.35),0 4px 16px -4px rgba(var(--c-primary-deep-rgb),.15),inset 0 1px 0 var(--glass-highlight);
  padding:40px 32px 32px;text-align:center;animation:cardIn .7s var(--ease) both;
}
@keyframes cardIn{from{opacity:0;transform:translateY(24px) scale(.97)}to{opacity:1;transform:none}}
.login-badge{width:72px;height:72px;margin:0 auto 20px;border-radius:26px;background:linear-gradient(135deg,var(--c-primary),var(--c-violet));display:flex;align-items:center;justify-content:center;box-shadow:0 14px 28px -10px rgba(234,88,12,.55);animation:badgeIn .8s .1s var(--ease) both;}
@keyframes badgeIn{from{opacity:0;transform:scale(.6) rotate(-8deg)}to{opacity:1;transform:none}}
.login-badge svg,.login-badge i{width:36px;height:36px;font-size:36px;color:#fff;}
.login-title{font-family:'Sarabun','Plus Jakarta Sans',sans-serif;font-weight:800;font-size:26px;margin:0 0 6px;}
.login-sub{font-size:15px;color:var(--c-ink-soft);margin:0 0 28px;line-height:1.5;}
.login-sub strong{color:var(--c-ink);font-weight:600;}
.domain-chip{display:inline-flex;align-items:center;gap:6px;background:var(--c-surface-soft);border:1px solid var(--c-border);color:var(--c-primary-deep);font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:28px;}
.domain-chip svg{width:14px;height:14px;}
.btn-google{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;background:linear-gradient(135deg,var(--c-btn-grad-1),var(--c-btn-grad-2));color:#fff;font-family:'Sarabun','Inter',sans-serif;font-weight:600;font-size:15px;border:none;border-radius:999px;padding:15px 20px;cursor:pointer;box-shadow:0 12px 24px -8px rgba(234,88,12,.55);transition:transform .25s var(--ease),box-shadow .25s var(--ease),opacity .25s;}
.btn-google:hover{transform:translateY(-2px);box-shadow:0 18px 30px -8px rgba(234,88,12,.6);}
.btn-google:active{transform:scale(.98);}
.btn-google:disabled{opacity:.6;cursor:wait;transform:none;}
.btn-google:focus-visible{outline:3px solid var(--c-primary);outline-offset:3px;}
.g-icon{width:20px;height:20px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.g-icon svg{width:13px;height:13px;}
.login-status{margin-top:18px;min-height:22px;font-size:13.5px;font-weight:500;display:flex;align-items:center;justify-content:center;gap:6px;}
.login-status.error{color:var(--c-coral);}
.login-status.success{color:var(--c-success);}
.login-status.info{color:var(--c-ink-soft);}
.login-footnote{margin-top:20px;font-size:11.5px;color:var(--c-ink-soft);opacity:.7;line-height:1.5;}
@media(max-width:380px){.login-card{padding:32px 20px 26px;}.login-title{font-size:22px;}}

/* ─── Spinner ─── */
.spinner{width:14px;height:14px;border-radius:50%;border:2px solid rgba(234,88,12,.25);border-top-color:var(--c-primary);animation:spin .7s linear infinite;flex-shrink:0;display:inline-block;}
@keyframes spin{to{transform:rotate(360deg)}}
.spinner-lg{width:28px;height:28px;border-width:3px;}

/* ═══════════════════════════════
   PORTAL LAYOUT
══════════════════════════════════ */
.portal-layout{display:none;min-height:100vh;background:transparent;}
.portal-layout.show{display:flex;}

/* ─── Sidebar ─── */
.sidebar{
  width:var(--sidebar-w);min-width:var(--sidebar-w);
  background:rgba(var(--c-surface-rgb),.55);
  backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  border-right:1px solid var(--glass-border);
  display:flex;flex-direction:column;
  position:fixed;top:0;left:0;height:100%;
  z-index:200;
  box-shadow:4px 0 24px rgba(var(--c-primary-deep-rgb),.1),inset -1px 0 0 var(--glass-highlight);
}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:20px 20px 16px;border-bottom:1px solid var(--c-border);}
.sidebar-logo{width:40px;height:40px;border-radius:15px;flex-shrink:0;background:linear-gradient(135deg,var(--c-primary),var(--c-violet));display:flex;align-items:center;justify-content:center;box-shadow:0 8px 16px -6px rgba(234,88,12,.5);}
.sidebar-logo svg,.sidebar-logo i{width:22px;height:22px;font-size:20px;color:#fff;}
.sidebar-name{font-family:'Plus Jakarta Sans','Sarabun',sans-serif;font-weight:800;font-size:17px;color:var(--c-ink);}
.sidebar-school{font-size:11px;color:var(--c-ink-soft);font-weight:500;}

.nav-list{list-style:none;padding:14px 12px;flex:1;overflow-y:auto;margin:0;}
.nav-item{
  display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:var(--radius-sm);
  cursor:pointer;font-size:14px;font-weight:500;color:var(--c-ink-soft);
  transition:background .18s,color .18s;margin-bottom:2px;
  border:none;background:none;width:100%;text-align:left;
  font-family:'Sarabun','Inter',sans-serif;text-decoration:none;
}
.nav-item svg{width:18px;height:18px;flex-shrink:0;}
.nav-item i{width:18px;flex-shrink:0;font-size:16px;text-align:center;}
.nav-item:hover{background:var(--c-surface-soft);color:var(--c-ink);}
.nav-item.active{background:linear-gradient(135deg,rgba(234,88,12,.12),rgba(168,85,247,.1));color:var(--c-primary-deep);font-weight:600;}
.nav-item.active svg,.nav-item.active i{color:var(--c-primary);}
.nav-item:focus-visible{outline:3px solid var(--c-primary);outline-offset:2px;}
.nav-item-external{box-sizing:border-box;}

.sidebar-footer{padding:16px;border-top:1px solid var(--c-border);}
.sidebar-user{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.sidebar-avatar{width:38px;height:38px;border-radius:14px;object-fit:cover;background:var(--c-surface-soft);flex-shrink:0;}
.sidebar-user-name{font-size:13px;font-weight:600;color:var(--c-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.sidebar-user-email{font-size:11px;color:var(--c-ink-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.btn-logout{
  width:100%;display:flex;align-items:center;justify-content:center;gap:7px;
  padding:10px;border-radius:var(--radius-sm);
  font-family:'Sarabun','Inter',sans-serif;font-size:13px;font-weight:600;
  background:rgba(var(--c-surface-rgb),.5);
  backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  color:var(--c-ink);border:1px solid var(--glass-border);cursor:pointer;
  box-shadow:inset 0 1px 0 var(--glass-highlight);
  transition:background .18s,color .18s,border-color .18s;
}
.btn-logout:hover{background:rgba(var(--c-surface-rgb),.7);}
.btn-logout.confirming{background:rgba(var(--c-coral-rgb),.15);color:var(--c-coral);border-color:rgba(var(--c-coral-rgb),.3);}
.btn-logout:disabled{opacity:.6;cursor:wait;}
.btn-logout:focus-visible{outline:3px solid var(--c-primary);outline-offset:2px;}
.btn-logout svg{width:14px;height:14px;}

/* ─── Main area ─── */
.portal-main{position:relative;z-index:1;flex:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-height:100vh;}
.topbar{
  display:none;position:sticky;top:0;z-index:100;height:var(--topbar-h);
  background:rgba(var(--c-surface-rgb),.82);
  backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  border-bottom:1px solid var(--glass-border);
  align-items:center;justify-content:space-between;padding:0 16px;
  box-shadow:0 2px 12px rgba(var(--c-primary-deep-rgb),.08),inset 0 -1px 0 var(--glass-highlight);
}
.topbar-brand{display:flex;align-items:center;gap:10px;}
.topbar-logo{width:34px;height:34px;border-radius:13px;background:linear-gradient(135deg,var(--c-primary),var(--c-violet));display:flex;align-items:center;justify-content:center;}
.topbar-logo svg,.topbar-logo i{width:18px;height:18px;font-size:16px;color:#fff;}
.topbar-title{font-family:'Plus Jakarta Sans','Sarabun',sans-serif;font-weight:700;font-size:16px;color:var(--c-ink);}
.topbar-right{display:flex;align-items:center;gap:8px;position:relative;}
.topbar-avatar-btn{background:none;border:none;cursor:pointer;padding:0;}
.topbar-avatar{width:36px;height:36px;border-radius:13px;object-fit:cover;background:var(--c-surface-soft);display:block;}
.topbar-dropdown{
  display:none;position:absolute;right:0;top:calc(100% + 8px);
  background:rgba(var(--c-surface-rgb),.9);
  backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(140%);
  border:1px solid var(--glass-border);border-radius:14px;
  box-shadow:0 12px 32px rgba(var(--c-primary-deep-rgb),.18),inset 0 1px 0 var(--glass-highlight);padding:8px;min-width:200px;z-index:300;
}
.topbar-dropdown.open{display:block;}
.td-user{padding:10px 12px 10px;border-bottom:1px solid var(--c-border);margin-bottom:6px;}
.td-user-name{font-size:14px;font-weight:600;}
.td-user-email{font-size:12px;color:var(--c-ink-soft);}
.td-btn{width:100%;display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:var(--radius-sm);font-family:'Sarabun','Inter',sans-serif;font-size:13px;font-weight:500;border:none;background:none;cursor:pointer;color:var(--c-ink);transition:background .15s;}
.td-btn:hover{background:var(--c-surface-soft);}
.td-btn.danger{color:var(--c-coral);}
.td-btn.confirming{background:rgba(255,59,92,.1);color:var(--c-coral);font-weight:600;}
.td-btn svg{width:15px;height:15px;}

.portal-content{flex:1;padding:28px;max-width:900px;width:100%;margin:0 auto;}
.portal-content.wide{max-width:1200px;}

/* ─── Bottom nav (mobile only) ─── */
.bottom-nav{
  display:none;position:fixed;bottom:0;left:0;right:0;z-index:200;height:var(--bnav-h);
  background:rgba(var(--c-surface-rgb),.6);
  backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  border-top:1px solid var(--glass-border);
  box-shadow:0 -4px 20px rgba(var(--c-primary-deep-rgb),.1),inset 0 1px 0 var(--glass-highlight);
}
.bnav-inner{display:flex;height:100%;}
.bnav-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  border:none;background:none;cursor:pointer;font-family:'Sarabun','Inter',sans-serif;
  font-size:10px;font-weight:500;color:var(--c-ink-soft);padding:6px 4px;
  transition:color .15s;text-decoration:none;box-sizing:border-box;
}
.bnav-item svg{width:20px;height:20px;}
.bnav-item i{font-size:19px;}
.bnav-item.active{color:var(--c-primary);font-weight:700;}
.bnav-item:focus-visible{outline:2px solid var(--c-primary);}

/* ─── Page header ─── */
.page-header{margin-bottom:24px;}
.page-header-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.page-header-left{display:flex;align-items:center;gap:14px;}
.page-header-icon{
  width:48px;height:48px;border-radius:18px;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-primary),var(--c-violet));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px -6px rgba(234,88,12,.5);
}
.page-header-icon svg{width:24px;height:24px;color:#fff;}
.page-header-icon i{font-size:22px;color:#fff;}
.page-h1{font-family:'Sarabun','Plus Jakarta Sans',sans-serif;font-weight:800;font-size:22px;color:var(--c-ink);}
.page-sub{font-size:13px;color:var(--c-ink-soft);margin-top:2px;}

/* ─── Section content ─── */
.section-page{display:none;}
.section-page.active{display:block;}

/* ─── Cards ─── */
.card{background:rgba(var(--c-surface-rgb),.55);backdrop-filter:blur(var(--glass-blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);border-radius:20px;padding:24px;border:1px solid var(--glass-border);box-shadow:0 8px 32px rgba(var(--c-primary-deep-rgb),.08),inset 0 1px 0 var(--glass-highlight);margin-bottom:16px;}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px;}
.card-head-left{display:flex;align-items:center;gap:10px;}
.card-head-icon{width:36px;height:36px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.card-head-icon.personal{background:rgba(234,88,12,.1);color:var(--c-primary);}
.card-head-icon.success{background:rgba(34,197,94,.1);color:var(--c-success);}
.card-head-icon.warning{background:rgba(255,176,32,.1);color:var(--c-warning);}
.card-head-icon.violet{background:rgba(168,85,247,.1);color:var(--c-violet);}
.card-head-icon svg{width:18px;height:18px;}
.card-head-icon i{font-size:17px;}
.card-title{font-family:'Sarabun','Plus Jakarta Sans',sans-serif;font-size:14px;font-weight:700;color:var(--c-ink);}
.card-subtitle{font-size:12px;color:var(--c-ink-soft);}

/* ─── Form ─── */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 12px;}
.form-field{min-width:0;}
.form-field.full{grid-column:1/-1;}
.form-label{font-size:12px;font-weight:600;color:var(--c-ink-soft);margin-bottom:5px;display:block;}
.required-mark{color:var(--c-coral);margin-left:3px;}
.form-section-hint{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;color:var(--c-ink-soft);background:var(--c-surface-soft);border:1px solid var(--c-border);border-radius:var(--radius-sm);padding:10px 12px;margin-bottom:16px;line-height:1.5;}
.form-section-hint svg{width:15px;height:15px;flex-shrink:0;margin-top:1px;color:var(--c-primary);}
.form-input,.form-select,.form-textarea{
  width:100%;padding:10px 14px;border:1.5px solid var(--c-border);border-radius:var(--radius-sm);
  font-family:'Sarabun','Inter',sans-serif;font-size:14px;color:var(--c-ink);
  background:var(--c-surface);transition:border-color .2s,box-shadow .2s;
}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(234,88,12,.14);}
.form-textarea{resize:vertical;min-height:80px;line-height:1.5;}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b6f8a' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px;}
.form-divider{height:1px;background:var(--c-border);margin:4px 0 8px;grid-column:1/-1;}
.form-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px;padding-top:16px;border-top:1px solid var(--c-border);}
.form-error{font-size:11.5px;color:var(--c-coral);margin-top:4px;display:none;}
.form-field.has-error .form-input,.form-field.has-error .form-select{border-color:var(--c-coral);}
.form-field.has-error .form-error{display:block;}
@media(max-width:768px){.form-grid{grid-template-columns:1fr;}.form-field.full{grid-column:1;}}

/* ─── Buttons ─── */
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:999px;font-family:'Sarabun','Inter',sans-serif;font-size:13.5px;font-weight:600;border:none;cursor:pointer;transition:transform .2s,opacity .2s,box-shadow .2s;}
.btn:focus-visible{outline:3px solid var(--c-primary);outline-offset:2px;}
.btn-primary{background:linear-gradient(135deg,var(--c-btn-grad-1),var(--c-btn-grad-2));color:#fff;box-shadow:0 8px 20px -6px rgba(var(--c-primary-rgb),.5),inset 0 1px 0 rgba(255,255,255,.35);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 24px -6px rgba(var(--c-primary-rgb),.6),inset 0 1px 0 rgba(255,255,255,.35);}
.btn-primary:active{transform:scale(.98);}
.btn-primary:disabled{opacity:.6;cursor:wait;transform:none;}
.btn-ghost{background:rgba(var(--c-surface-rgb),.5);backdrop-filter:blur(var(--glass-blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);color:var(--c-ink);border:1px solid var(--glass-border);box-shadow:inset 0 1px 0 var(--glass-highlight);}
.btn-ghost:hover{background:rgba(var(--c-surface-rgb),.7);}
.btn-danger{background:rgba(var(--c-coral-rgb),.12);color:var(--c-coral);border:1px solid rgba(var(--c-coral-rgb),.3);}
.btn-danger:hover{background:rgba(var(--c-coral-rgb),.2);}
.btn-edit{background:rgba(var(--c-surface-rgb),.5);backdrop-filter:blur(var(--glass-blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);color:var(--c-primary-deep);border:1px solid var(--glass-border);box-shadow:inset 0 1px 0 var(--glass-highlight);font-size:13px;padding:7px 16px;}
.btn-edit:hover{background:rgba(var(--c-surface-rgb),.7);}
.btn-edit svg,.btn-primary svg,.btn-ghost svg,.btn-danger svg{width:15px;height:15px;}
.btn-icon{width:40px;height:40px;padding:0;justify-content:center;border-radius:50%;}
.btn:disabled{opacity:.6;cursor:not-allowed;}

/* ─── Chips / badges ─── */
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;color:var(--c-ink);white-space:nowrap;}
.chip .v{color:var(--c-primary);font-weight:800;}
.badge{font-size:11px;font-weight:700;padding:3px 10px;border-radius:999px;display:inline-flex;align-items:center;gap:4px;line-height:1.3;}
.badge.success{background:rgba(var(--c-success-rgb),.12);color:var(--c-success);}
.badge.warning{background:rgba(var(--c-warning-rgb),.14);color:var(--c-warning);}
.badge.danger{background:rgba(var(--c-coral-rgb),.12);color:var(--c-coral);}
.badge.neutral{background:rgba(98,99,140,.12);color:var(--c-ink-soft);}
.badge.primary{background:rgba(var(--c-primary-rgb),.12);color:var(--c-primary-deep);}

/* ─── Stat cards ─── */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px;}
.stat-card{background:rgba(var(--c-surface-rgb),.55);backdrop-filter:blur(var(--glass-blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);border-radius:16px;padding:18px 16px;border:1px solid var(--glass-border);box-shadow:0 6px 20px rgba(var(--c-primary-deep-rgb),.08),inset 0 1px 0 var(--glass-highlight);text-align:center;}
.stat-icon{width:40px;height:40px;border-radius:15px;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;}
.stat-icon.p{background:rgba(234,88,12,.1);color:var(--c-primary);}
.stat-icon.a{background:rgba(34,197,94,.1);color:var(--c-success);}
.stat-icon.s{background:rgba(168,85,247,.1);color:var(--c-violet);}
.stat-icon.v{background:rgba(255,59,92,.1);color:var(--c-coral);}
.stat-icon svg{width:20px;height:20px;}
.stat-icon i{font-size:18px;}
.stat-value{font-size:16px;font-weight:700;color:var(--c-ink);margin-bottom:2px;}
.stat-label{font-size:11px;color:var(--c-ink-soft);}
@media(max-width:768px){.stats-row{grid-template-columns:1fr 1fr;}}

/* ─── Shortcut / dashboard cards ─── */
.shortcut-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.shortcut-card:nth-child(odd):last-child{grid-column:1/-1;}
.shortcut-card{
  appearance:none;-webkit-appearance:none;
  background:rgba(var(--c-surface-rgb),.55);
  backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  border-radius:16px;padding:18px 16px;border:1px solid var(--glass-border);cursor:pointer;
  box-shadow:0 6px 20px rgba(var(--c-primary-deep-rgb),.08),inset 0 1px 0 var(--glass-highlight);
  display:flex;align-items:center;gap:14px;text-align:left;font:inherit;color:inherit;width:100%;
  transition:box-shadow .2s,transform .2s;text-decoration:none;box-sizing:border-box;
}
.shortcut-card:hover{box-shadow:0 12px 28px rgba(var(--c-primary-deep-rgb),.18),inset 0 1px 0 var(--glass-highlight);transform:translateY(-2px);}
.shortcut-card:active{transform:scale(.98);}
.shortcut-card:focus-visible{outline:3px solid var(--c-primary);outline-offset:2px;}
.shortcut-icon{width:42px;height:42px;border-radius:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.shortcut-icon.personal{background:rgba(234,88,12,.1);color:var(--c-primary);}
.shortcut-icon.violet{background:rgba(168,85,247,.1);color:var(--c-violet);}
.shortcut-icon.neutral{background:var(--c-surface-soft);color:var(--c-ink-soft);}
.shortcut-icon svg{width:20px;height:20px;}
.shortcut-icon i{font-size:19px;}
.shortcut-name{font-family:'Sarabun','Plus Jakarta Sans',sans-serif;font-size:13.5px;font-weight:700;color:var(--c-ink);}
.shortcut-hint{font-size:11.5px;color:var(--c-ink-soft);margin-top:4px;}
@media(max-width:768px){.shortcut-grid{grid-template-columns:1fr;}}

/* ─── Welcome / hero card ─── */
.welcome-card{background:linear-gradient(135deg,var(--c-btn-grad-1),var(--c-btn-grad-2));border-radius:20px;padding:28px;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:20px;box-shadow:0 12px 32px -8px rgba(var(--c-primary-rgb),.4),inset 0 1px 0 rgba(255,255,255,.35);}
.welcome-text .greeting{font-family:'Sarabun','Plus Jakarta Sans',sans-serif;font-weight:800;font-size:24px;margin-bottom:4px;}
.welcome-text .sub{font-size:13px;opacity:.85;}
@media(max-width:768px){.welcome-card{flex-direction:column;text-align:center;padding:22px;}.welcome-text .greeting{font-size:20px;}}

/* ─── Loading / empty / error ─── */
.state-loading{display:flex;align-items:center;justify-content:center;gap:10px;padding:40px;color:var(--c-ink-soft);font-size:14px;}
.state-empty{text-align:center;padding:36px 16px;color:var(--c-ink-soft);font-size:14px;line-height:1.6;}
.state-error{background:rgba(255,59,92,.1);color:var(--c-coral);border-radius:var(--radius-sm);padding:14px 16px;font-size:13px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;}

/* ─── Toast ─── */
.toast-wrap{position:fixed;bottom:calc(var(--bnav-h) + 16px);left:50%;transform:translateX(-50%);z-index:500;pointer-events:none;}
@media(min-width:769px){.toast-wrap{bottom:24px;}}
.toast{
  display:inline-flex;align-items:center;gap:8px;background:var(--c-ink);color:var(--c-bg);
  backdrop-filter:blur(var(--glass-blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  font-size:13.5px;font-weight:500;padding:12px 20px;border-radius:999px;
  box-shadow:0 8px 24px rgba(0,0,0,.25),inset 0 1px 0 rgba(255,255,255,.15);
  opacity:0;transform:translateY(8px);transition:opacity .3s,transform .3s;white-space:nowrap;
}
.toast.show{opacity:1;transform:translateY(0);}
.toast.success svg{color:var(--c-success);}
.toast.error svg{color:var(--c-coral);}
.toast svg{width:16px;height:16px;flex-shrink:0;}

/* ─── Theme toggle ─── */
.theme-toggle{width:38px;height:38px;border-radius:14px;border:1px solid var(--c-border);background:var(--c-surface-soft);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s,border-color .2s;flex-shrink:0;}
.theme-toggle:hover{background:var(--c-border);}
.theme-toggle:focus-visible{outline:3px solid var(--c-primary);outline-offset:2px;}
.theme-toggle svg{width:18px;height:18px;color:var(--c-ink-soft);}
.theme-toggle i{font-size:16px;color:var(--c-ink-soft);}
.login-theme{position:absolute;top:16px;right:16px;}
.sidebar-theme{margin-bottom:12px;width:100%;height:auto;padding:10px;border-radius:var(--radius-sm);gap:7px;font-family:'Sarabun','Inter',sans-serif;font-size:13px;font-weight:600;color:var(--c-ink);}
.topbar-theme{order:-1;}

/* ─── Row list (students / rows) ─── */
.row-list{display:flex;flex-direction:column;gap:10px;}
.list-row{
  display:flex;align-items:center;gap:14px;
  background:rgba(var(--c-surface-rgb),.55);border:1px solid var(--glass-border);
  backdrop-filter:blur(var(--glass-blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  box-shadow:inset 0 1px 0 var(--glass-highlight);border-radius:16px;padding:14px 18px;
  transition:box-shadow .2s,transform .2s;
}
.list-row:hover{box-shadow:0 8px 24px rgba(var(--c-primary-deep-rgb),.14),inset 0 1px 0 var(--glass-highlight);transform:translateY(-1px);}
.row-avatar{width:44px;height:44px;border-radius:16px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;color:#fff;}
.row-avatar img{width:100%;height:100%;border-radius:16px;object-fit:cover;}
.row-num{width:32px;height:32px;border-radius:13px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--c-primary);background:rgba(234,88,12,.1);}
.row-info{flex:1;min-width:0;}
.row-name{font-family:'Sarabun','Plus Jakarta Sans',sans-serif;font-size:14px;font-weight:700;color:var(--c-ink);}
.row-meta{font-size:12px;color:var(--c-ink-soft);margin-top:2px;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;}
@media(max-width:768px){.list-row{padding:12px 14px;gap:10px;flex-wrap:wrap;}.row-avatar{width:38px;height:38px;}.row-meta{font-size:11px;}}

/* ─── Modal (overlay pattern, matches KN Connect+ student-detail / admin modals) ─── */
.kn-modal-overlay{
  position:fixed;inset:0;z-index:600;background:rgba(11,13,31,.5);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:center;padding:20px;
  opacity:0;animation:knFade .2s ease forwards;
}
@keyframes knFade{to{opacity:1;}}
.kn-modal{
  background:rgba(var(--c-surface-rgb),.9);
  backdrop-filter:blur(var(--glass-blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(180%);
  border:1px solid var(--glass-border);border-radius:24px;width:100%;max-width:560px;max-height:88vh;
  display:flex;flex-direction:column;overflow:hidden;
  box-shadow:0 24px 60px -16px rgba(var(--c-primary-deep-rgb),.4),inset 0 1px 0 var(--glass-highlight);
  animation:knModalIn .26s var(--ease);
}
@keyframes knModalIn{from{opacity:0;transform:translateY(16px) scale(.98);}to{opacity:1;transform:none;}}
.kn-modal-head{display:flex;align-items:center;gap:14px;padding:22px;background:linear-gradient(135deg,var(--c-btn-grad-1),var(--c-btn-grad-2));color:#fff;position:relative;box-shadow:inset 0 1px 0 rgba(255,255,255,.35);}
.kn-modal-title{font-family:'Sarabun','Plus Jakarta Sans',sans-serif;font-size:17px;font-weight:800;}
.kn-modal-sub{font-size:12.5px;opacity:.9;margin-top:2px;}
.kn-modal-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:13px;border:none;background:rgba(255,255,255,.2);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s;}
.kn-modal-close:hover{background:rgba(255,255,255,.35);}
.kn-modal-body{padding:20px 22px 24px;overflow-y:auto;}
@media(max-width:768px){.kn-modal-overlay{padding:0;align-items:flex-end;}.kn-modal{max-width:100%;max-height:92vh;border-radius:24px 24px 0 0;}}

/* ─── Ambient blob (used in-page, not just login) ─── */
.ambient-blob{position:fixed;border-radius:50%;filter:blur(90px);opacity:.35;z-index:0;pointer-events:none;}
[data-theme="dark"] .ambient-blob{opacity:.18;filter:blur(110px);}

/* ─── Responsive: collapse to mobile chrome ─── */
@media(max-width:768px){
  .sidebar{display:none;}
  .portal-main{margin-left:0;}
  .topbar{display:flex;}
  .bottom-nav{display:block;}
  .portal-content{padding:16px;padding-bottom:calc(var(--bnav-h) + 16px);}
  .page-h1{font-size:18px;}
  .page-header-icon{width:40px;height:40px;}
}
[data-theme="dark"] .aurora span{opacity:.4;}
[data-theme="dark"] .login-card{box-shadow:0 24px 60px -20px rgba(0,0,0,.5),0 4px 16px -4px rgba(0,0,0,.3),inset 0 1px 0 var(--glass-highlight);}