/* ═══════════════════════════════════════════════
   shared/styles.css
   โรงเรียนหนองกี่พิทยาคม – Shared Stylesheet
   ═══════════════════════════════════════════════ */

* { font-family: 'Sarabun', sans-serif; box-sizing: border-box; margin: 0; padding: 0; }

/* ── Loading Overlay ── */
#loadingOverlay {
  display: flex; position: fixed; inset: 0;
  background: rgba(255,255,255,.92); z-index: 9999;
  flex-direction: column; align-items: center; justify-content: center; gap: 14px;
}
.spinner {
  border: 3px solid #e2e8f0; border-top: 3px solid #1d4ed8;
  border-radius: 50%; width: 48px; height: 48px;
  animation: spin .8s linear infinite;
}
.spinner.purple { border-top-color: #7c3aed; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Sidebar ── */
.sidebar-wrap { width: 272px; flex-shrink: 0; transition: transform .3s ease; }
.sidebar-inner {
  background: #f8fafc; border-right: 1px solid #e2e8f0;
  min-height: 100vh; padding: 20px 12px;
  display: flex; flex-direction: column;
}
.sidebar-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px; border-radius: 14px; font-weight: 700;
  color: #64748b; width: 100%; background: none; border: none;
  cursor: pointer; text-decoration: none; transition: all .2s;
  font-size: 14px; white-space: nowrap; overflow: hidden;
}
.sidebar-btn span {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0;
}
.sidebar-btn:hover { background: #f1f5f9; }
.sidebar-btn.active { background: #1d4ed8; color: white; box-shadow: 0 8px 15px -3px rgba(30,64,175,.25); }
.sidebar-btn.admin-btn { color: #7c3aed; }
.sidebar-btn.admin-btn:hover { background: #faf5ff; }
.sidebar-btn.admin-btn.active { background: #7c3aed; color: white; box-shadow: 0 8px 15px -3px rgba(124,58,237,.25); }
.sec-label {
  padding: 14px 16px 8px; font-size: 10px; font-weight: 800;
  color: #94a3b8; text-transform: uppercase; letter-spacing: 2px;
}

/* ── Sidebar Overlay (mobile) ── */
#sidebarOverlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 199; }
#sidebarOverlay.open { display: block; }

/* ── Mobile Drawer ── */
@media (max-width: 1023px) {
  .sidebar-wrap {
    position: fixed; top: 0; left: 0; height: 100vh; z-index: 200;
    transform: translateX(-100%); box-shadow: 4px 0 24px rgba(0,0,0,.12);
  }
  .sidebar-wrap.open { transform: translateX(0); }
  #mainGrid { flex-direction: column; }
  #contentArea { width: 100%; }
}
@media (min-width: 1024px) {
  #hamburgerBtn { display: none !important; }
  .sidebar-inner { border-right: none; }
}

/* ── Card ── */
.card { background: white; border-radius: 16px; border: 1px solid #e2e8f0; box-shadow: 0 2px 8px rgba(0,0,0,.04); }

/* ── Tab content ── */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Toast ── */
.toast {
  position: fixed; bottom: 20px; right: 20px;
  padding: 13px 20px; border-radius: 10px; color: white;
  font-weight: 700; font-size: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,.15); z-index: 9999;
  animation: toastIn .3s ease;
}
.toast.hide { animation: toastOut .3s ease forwards; }
@keyframes toastIn  { from { transform: translateX(400px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes toastOut { from { transform: translateX(0); opacity: 1; } to { transform: translateX(400px); opacity: 0; } }

/* ── Modal ── */
.modal-bg {
  display: none; position: fixed; inset: 0;
  background: rgba(15,23,42,.65); z-index: 1000;
  align-items: center; justify-content: center;
  padding: 16px; backdrop-filter: blur(4px);
}
.modal-bg.open { display: flex; }
.modal-box {
  background: white; border-radius: 20px; width: 100%;
  max-width: 480px; padding: 26px;
  box-shadow: 0 25px 60px rgba(0,0,0,.2);
}

/* ── Form Inputs ── */
input[type=text], input[type=number], input[type=date], select, textarea {
  border: 1.5px solid #e2e8f0; padding: 10px 14px; border-radius: 10px;
  outline: none; font-size: 14px; width: 100%; color: #1e293b;
  transition: border-color .15s; font-family: 'Sarabun', sans-serif;
}
input:focus, select:focus, textarea:focus {
  border-color: #1d4ed8; box-shadow: 0 0 0 3px rgba(29,78,216,.1);
}

/* ── Badges ── */
.badge-g { background: #dcfce7; color: #15803d; padding: 2px 8px; border-radius: 4px; font-size: 9px; font-weight: 700; }
.badge-a { background: #fef9c3; color: #b45309;  padding: 2px 8px; border-radius: 4px; font-size: 9px; font-weight: 700; }
.badge-r { background: #fee2e2; color: #b91c1c;  padding: 2px 8px; border-radius: 4px; font-size: 9px; font-weight: 700; }

/* ── Calendar (shared) ── */
.cal-day {
  aspect-ratio: 1/1; display: flex; align-items: center; justify-content: center;
  border-radius: 8px; cursor: pointer; transition: all .15s;
  position: relative; font-size: 11px; font-weight: 600; border: 1px solid transparent;
}
.cal-day:hover:not(.empty) { background: #f1f5f9; }
.cal-day.has-booking::after { content: ''; position: absolute; bottom: 3px; width: 4px; height: 4px; background: #eab308; border-radius: 50%; }
.cal-day.is-full   { background: #fee2e2 !important; color: #b91c1c !important; border-color: #fecaca; }
.cal-day.is-today  { background: #1d4ed8 !important; color: white !important; box-shadow: 0 4px 10px rgba(29,78,216,.35); }
.cal-day.is-today::after { background: white !important; }
.cal-day.is-selected { border: 2px solid #1d4ed8; background: #eff6ff; }
.cal-day.empty { cursor: default; }

/* ── Stat bar ── */
.stat-bar-bg  { background: #e2e8f0; border-radius: 4px; height: 6px; overflow: hidden; }
.stat-bar-fill { height: 100%; border-radius: 4px; background: #1d4ed8; transition: width .4s ease; }

/* ── Upload area ── */
.upload-area {
  border: 2px dashed #bfdbfe; border-radius: 12px; padding: 20px 16px;
  text-align: center; cursor: pointer; transition: all .2s; background: #f8faff;
}
.upload-area:hover { border-color: #1d4ed8; background: #eff6ff; }
.upload-area.has-file { border-color: #22c55e; background: #f0fdf4; border-style: solid; }

/* ── File View Modal ── */
#fileViewModal {
  display: none; position: fixed; inset: 0;
  background: rgba(15,23,42,.75); z-index: 2000;
  align-items: center; justify-content: center;
  padding: 20px; backdrop-filter: blur(6px);
}
#fileViewModal.open { display: flex; }

/* ══════════════════════════════════════════════
   Portfolio – Submission Status (shared)
   ใช้ร่วมกันระหว่าง portfolio-admin.html
   และ teacher-portfolio.html
   ══════════════════════════════════════════════ */

/* ── Doc item card (teacher view) ── */
.doc-icon { width: 42px; height: 42px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.doc-item { background: white; border: 1.5px solid #e2e8f0; border-radius: 14px; padding: 16px 18px; transition: all .2s; display: flex; align-items: center; gap: 14px; }
.doc-item:hover { border-color: #bfdbfe; box-shadow: 0 4px 12px rgba(29,78,216,.06); }
.doc-item.submitted     { border-left: 4px solid #22c55e; }
.doc-item.pending       { border-left: 4px solid #e2e8f0; }
.doc-item.reviewed      { border-left: 4px solid #3b82f6; }
.doc-item.head_reviewed { border-left: 4px solid #0ea5e9; }
.doc-item.final_approved{ border-left: 4px solid #7c3aed; }
.doc-item.revision      { border-left: 4px solid #f59e0b; }

/* ── Status dot ── */
.status-dot           { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot-none             { background: #d1d5db; }
.dot-submitted        { background: #22c55e; }
.dot-head_reviewed    { background: #0ea5e9; }
.dot-reviewed         { background: #3b82f6; }
.dot-final_approved   { background: #7c3aed; }
.dot-revision         { background: #f59e0b; }

/* ── Doc chip (admin grid) ── */
.doc-chip { padding: 8px 10px; border-radius: 10px; font-size: 12px; font-weight: 700; display: flex; align-items: center; gap: 6px; border: 1.5px solid; cursor: pointer; transition: all .15s; }
.doc-chip:hover { transform: translateY(-1px); box-shadow: 0 4px 10px rgba(0,0,0,.08); }
.chip-none          { background: #f8fafc; border-color: #e2e8f0;  color: #94a3b8; }
.chip-submitted     { background: #f0fdf4; border-color: #86efac;  color: #15803d; }
.chip-head_reviewed { background: #e0f2fe; border-color: #7dd3fc;  color: #0369a1; }
.chip-reviewed      { background: #eff6ff; border-color: #93c5fd;  color: #1e40af; }
.chip-final_approved{ background: #f5f3ff; border-color: #c4b5fd;  color: #6d28d9; }
.chip-revision      { background: #fffbeb; border-color: #fde68a;  color: #92400e; }

/* ── Status badge (inline pill) ── */
.status-badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 10px; font-weight: 700; }
.status-badge.none          { background: #f1f5f9; color: #94a3b8; }
.status-badge.submitted     { background: #dcfce7; color: #15803d; }
.status-badge.head_reviewed { background: #e0f2fe; color: #0369a1; }
.status-badge.reviewed      { background: #dbeafe; color: #1e40af; }
.status-badge.final_approved{ background: #f5f3ff; color: #6d28d9; }
.status-badge.revision      { background: #fef9c3; color: #92400e; }

/* ── Workflow status bar ── */
.workflow-bar  { display: flex; align-items: stretch; margin-top: 8px; border-radius: 10px; overflow: hidden; border: 1px solid #e2e8f0; }
.wf-step       { flex: 1; padding: 6px 4px; text-align: center; font-size: 9px; font-weight: 800; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; line-height: 1.3; }
.wf-step.done     { background: #16a34a; color: white; }
.wf-step.active   { background: #eab308; color: #713f12; }
.wf-step.revision { background: #dc2626; color: white; }
.wf-step.pending  { background: #f1f5f9; color: #94a3b8; }
.wf-step.final    { background: #7c3aed; color: white; }
.wf-divider { width: 1px; background: rgba(0,0,0,.08); align-self: stretch; flex-shrink: 0; }

/* ── Matrix cell (admin table view) ── */
.matrix-cell          { width: 22px; height: 22px; border-radius: 6px; margin: 0 auto; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.cell-none            { background: #f1f5f9; }
.cell-submitted       { background: #dcfce7; }
.cell-head_reviewed   { background: #bae6fd; }
.cell-reviewed        { background: #dbeafe; }
.cell-final_approved  { background: #ede9fe; }
.cell-revision        { background: #fef9c3; }

/* ── Navbar ── */
.navbar {
  position: sticky; top: 0; z-index: 150;
  background: #1d4ed8; padding: 12px 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,.12);
}
.navbar.purple { background: #7c3aed; box-shadow: 0 4px 16px rgba(124,58,237,.3); }
.navbar-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}