/* =====================================================================
   School Fees Manager – Stylesheet
   Editorial theme: Fraunces + Public Sans, ink / gold / leaf / brick
   ===================================================================== */

/* ── Reset & Root ─────────────────────────────────────────────────── */
#sfm-app *, #sfm-app *::before, #sfm-app *::after { box-sizing: border-box; }
#sfm-app { --sfm-sidebar-w: 252px; --sfm-topbar-h: 60px; }

/* Light theme */
#sfm-app {
  --sfm-ink:         #16213A;
  --sfm-ink-2:       #1E2C4D;
  --sfm-bg:          #F5F6F2;
  --sfm-surface:     #FFFFFF;
  --sfm-border:      #E3E6DF;
  --sfm-text:        #16213A;
  --sfm-text-muted:  #5B6472;
  --sfm-faint:       #94A0B8;
  --sfm-accent:      #E4A430;
  --sfm-accent-dark: #C6871C;
  --sfm-accent-tint: #FBF3E3;
  --sfm-success:     #2F7D5A;
  --sfm-success-tint:#E9F5EF;
  --sfm-danger:      #B3402A;
  --sfm-danger-tint: #FBEAE6;
  --sfm-warning:     #C6871C;
  --sfm-purple:      #6D4C9E;
  --sfm-purple-tint: #F1ECFA;
  --sfm-teal:        #1D7A73;
  --sfm-teal-tint:   #E4F3F1;
  --sfm-shadow:      0 1px 2px rgba(22,33,58,.06), 0 8px 24px -12px rgba(22,33,58,.12);
  --sfm-shadow-lg:   0 24px 48px -20px rgba(22,33,58,.35);
  --sfm-radius:      14px;
  --sfm-radius-sm:   9px;
  font-family: 'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  color: var(--sfm-text);
  background: var(--sfm-bg);
  min-height: 100vh;
  display: flex;
  -webkit-font-smoothing: antialiased;
}

#sfm-app h1, #sfm-app h2, #sfm-app h3,
#sfm-app .sfm-display,
.sfm-topbar-title,
.sfm-modal-header h3,
.sfm-school-name,
.sfm-stat-value,
.sfm-empty h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

#sfm-app .num,
.sfm-stat-value, .sfm-bar-value, .sfm-report-summary-value,
.sfm-statement-header-item .value, .sfm-classlist-stat .stat-value {
  font-variant-numeric: tabular-nums;
}

/* Dark theme */
#sfm-app.sfm-dark {
  --sfm-bg:          #0F1626;
  --sfm-surface:     #182236;
  --sfm-border:      #2A3757;
  --sfm-text:        #EAEDF5;
  --sfm-text-muted:  #98A3BF;
  --sfm-faint:       #6C7899;
  --sfm-accent-tint: #3A2E15;
  --sfm-success-tint:#132A22;
  --sfm-danger-tint: #2E1712;
  --sfm-purple-tint: #211A33;
  --sfm-teal-tint:   #0F2624;
}

/* ── Layout ───────────────────────────────────────────────────────── */
.sfm-sidebar {
  width: var(--sfm-sidebar-w);
  background: var(--sfm-ink);
  color: rgba(255,255,255,.82);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100vh;
  position: sticky;
  top: 0;
  overflow-y: auto;
  transition: transform .3s ease;
  z-index: 200;
}

.sfm-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
  overflow: hidden;
}

.sfm-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px 26px 40px;
}

/* ── Sidebar Header ────────────────────────────────────────────────── */
.sfm-sidebar-header {
  padding: 22px 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  gap: 11px;
  flex-wrap: wrap;
}
.sfm-school-logo      { max-height: 36px; border-radius: 9px; }
.sfm-logo-placeholder {
  width: 36px; height: 36px; border-radius: 9px;
  background: var(--sfm-accent); color: var(--sfm-ink);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Fraunces', serif; font-weight: 700; font-size: 18px; flex-shrink: 0;
}
.sfm-school-name   { color: #fff; font-weight: 700; font-size: 13.5px; line-height: 1.3; }

/* ── Navigation ────────────────────────────────────────────────────── */
.sfm-nav { padding: 14px 12px; flex: 1; }
.sfm-nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 10px; color: rgba(255,255,255,.72);
  text-decoration: none; font-size: 13.5px; font-weight: 500;
  border-radius: 9px; transition: background .15s, color .15s;
  cursor: pointer; position: relative;
}
.sfm-nav-icon { width: 17px; height: 17px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; opacity: .85; }
.sfm-nav-icon svg { width: 17px; height: 17px; }
.sfm-nav-item:hover { background: rgba(255,255,255,.06); color: #fff; }
.sfm-nav-item.active {
  background: rgba(228,164,48,.14); color: #fff;
  border-left: 3px solid var(--sfm-accent);
  padding-left: 7px;
}
.sfm-nav-item.active .sfm-nav-icon { opacity: 1; color: var(--sfm-accent); }

/* ── Sidebar Footer ────────────────────────────────────────────────── */
.sfm-sidebar-footer {
  padding: 14px 16px 18px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex; align-items: center; gap: 10px;
}
.sfm-user-info   { flex: 1; display: flex; align-items: center; gap: 10px; min-width: 0; }
.sfm-user-avatar { width: 33px; height: 33px; border-radius: 50%; background: var(--sfm-accent); color: var(--sfm-ink); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; flex-shrink: 0; }
.sfm-user-name   { color: #fff; font-size: 12.5px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sfm-user-role   { color: var(--sfm-faint); font-size: 11px; margin-top: 1px; }
.sfm-btn-icon {
  background: none; border: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.7);
  width: 30px; height: 30px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; flex-shrink: 0; transition: background .15s; font-size: 15px;
}
.sfm-btn-icon svg { width: 15px; height: 15px; }
.sfm-btn-icon:hover { background: rgba(255,255,255,.08); }
.sfm-nav-divider { height: 1px; background: rgba(255,255,255,.08); margin: 10px 10px; }
.sfm-nav-logout  { color: #f0a29a !important; }
.sfm-nav-logout:hover { background: rgba(179,64,42,.18) !important; color: #ffb3a8 !important; }
.sfm-nav-logout .sfm-nav-icon svg { display: inline-block; vertical-align: middle; }

/* ── Nav Group Labels ──────────────────────────────────────────────── */
.sfm-nav-group-label {
  padding: 14px 10px 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  color: rgba(255,255,255,.32);
  text-transform: uppercase;
}

/* ── Statement / Receipt History ─────────────────────────────────── */
.sfm-payment-history-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px; border-bottom: 1px solid var(--sfm-border);
  font-size: 13px;
}
.sfm-payment-history-row:last-child { border-bottom: none; }
.sfm-payment-history-row .date { color: var(--sfm-text-muted); font-size: 12px; }
.sfm-payment-history-row .amount { font-weight: 700; color: var(--sfm-success); }

.sfm-statement-header {
  background: var(--sfm-bg); border-radius: var(--sfm-radius-sm);
  padding: 16px; margin-bottom: 16px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}
.sfm-statement-header-item { text-align: center; }
.sfm-statement-header-item .label { font-size: 11px; color: var(--sfm-text-muted); text-transform: uppercase; letter-spacing: .4px; margin-bottom: 4px; }
.sfm-statement-header-item .value { font-size: 16px; font-weight: 700; }

.sfm-receipt-history { margin-top: 16px; }
.sfm-receipt-history-title { font-weight: 700; font-size: 12px; color: var(--sfm-text-muted); text-transform: uppercase; letter-spacing: .4px; margin-bottom: 10px; }

/* ── Class List View ────────────────────────────────────────────── */
.sfm-classlist-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.sfm-classlist-summary {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-bottom: 20px;
}
.sfm-classlist-stat {
  background: var(--sfm-surface); border: 1px solid var(--sfm-border);
  border-radius: var(--sfm-radius); padding: 16px 18px; text-align: center;
  box-shadow: var(--sfm-shadow);
}
.sfm-classlist-stat .stat-label { font-size: 10.5px; color: var(--sfm-text-muted); text-transform: uppercase; letter-spacing: .08em; font-weight: 700; margin-bottom: 6px; }
.sfm-classlist-stat .stat-value { font-size: 23px; font-weight: 600; }

/* ── Topbar ─────────────────────────────────────────────────────────── */
.sfm-topbar {
  height: var(--sfm-topbar-h);
  background: var(--sfm-surface);
  border-bottom: 1px solid var(--sfm-border);
  display: flex; align-items: center; gap: 14px;
  padding: 0 22px; flex-shrink: 0;
  position: sticky; top: 0; z-index: 100;
}
.sfm-hamburger {
  background: none; border: none; font-size: 20px;
  cursor: pointer; color: var(--sfm-text); padding: 4px;
  display: none; /* shown on mobile */
}
.sfm-topbar-title  { font-size: 16px; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sfm-topbar-actions { display: flex; align-items: center; gap: 10px; }
.sfm-search-wrap   { position: relative; }
.sfm-search-input  { width: 210px; padding-left: 30px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='%2394A0B8' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001l3.85 3.85a1 1 0 0 0 1.415-1.415l-3.85-3.85zm-5.242 1.856a5.5 5.5 0 1 1 0-11 5.5 5.5 0 0 1 0 11z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: 10px center; background-color: var(--sfm-bg); }
.sfm-search-input:focus { background-color: var(--sfm-surface); }

/* ── Sidebar Overlay ─────────────────────────────────────────────── */
.sfm-sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(22,33,58,.5);
  z-index: 190;
}
.sfm-sidebar-overlay.visible { display: block; }

/* ── Settlement banner ────────────────────────────────────────────── */
.sfm-banner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  background: var(--sfm-accent-tint); border: 1px solid #F0D9A8; border-left: 4px solid var(--sfm-accent);
  border-radius: var(--sfm-radius-sm); padding: 13px 18px; margin: 0 0 20px;
}
.sfm-banner.urgent { background: var(--sfm-danger-tint); border-color: #EFC7BE; border-left-color: var(--sfm-danger); }
.sfm-banner.success { background: var(--sfm-success-tint); border-color: #BFE2CF; border-left-color: var(--sfm-success); }
.sfm-banner-text { font-size: 13.5px; color: var(--sfm-text); }
.sfm-banner-text b { font-family: 'Fraunces', serif; font-weight: 700; }
.sfm-banner-sub { font-size: 11.5px; color: var(--sfm-text-muted); margin-top: 4px; }
.sfm-banner.urgent .sfm-banner-sub { color: #8A2A24; }
#sfm-app.sfm-dark .sfm-banner.urgent .sfm-banner-sub { color: #f0a29a; }

/* ── Cards & Sections ────────────────────────────────────────────── */
.sfm-section-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px; flex-wrap: wrap;
}
.sfm-section-header h2 { font-size: 18px; margin: 0; flex: 1; }
.sfm-section-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.sfm-wrap-actions    { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ── Payments date pills bar ─────────────────────────────────────── */
.sfm-pmt-date-pills-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.sfm-pmt-custom-dates {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-left: 4px;
}
.sfm-pmt-date-input {
  width: 148px !important;
  font-size: 12px !important;
  padding: 5px 10px !important;
}
.sfm-pmt-date-sep {
  font-size: 12px;
  color: var(--sfm-text-muted);
}

.sfm-card {
  background: var(--sfm-surface);
  border: 1px solid var(--sfm-border);
  border-radius: var(--sfm-radius);
  padding: 18px 20px;
  box-shadow: var(--sfm-shadow);
}
.sfm-card-title { font-weight: 700; font-size: 13px; margin-bottom: 14px; color: var(--sfm-text-muted); text-transform: uppercase; letter-spacing: .08em; }
.sfm-mb-12 { margin-bottom: 12px; }
.sfm-mb-16 { margin-bottom: 16px; }
.sfm-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }

/* ── Stat Cards ──────────────────────────────────────────────────── */
.sfm-stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-bottom: 22px; }
.sfm-stat-card  {
  background: var(--sfm-surface); border: 1px solid var(--sfm-border);
  border-radius: var(--sfm-radius); padding: 16px 18px;
  display: flex; align-items: center; gap: 14px;
  box-shadow: var(--sfm-shadow);
}
.sfm-stat-icon  { font-size: 24px; width: 46px; height: 46px; border-radius: 11px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sfm-stat-icon.blue   { background: var(--sfm-accent-tint); }
.sfm-stat-icon.green  { background: var(--sfm-success-tint); }
.sfm-stat-icon.orange { background: var(--sfm-accent-tint); }
.sfm-stat-icon.red    { background: var(--sfm-danger-tint); }
.sfm-stat-label { font-size: 10.5px; color: var(--sfm-text-muted); text-transform: uppercase; letter-spacing: .08em; font-weight: 700; margin-bottom: 6px; }
.sfm-stat-value { font-size: 21px; font-weight: 600; color: var(--sfm-text); line-height: 1.2; }
.sfm-stat-sub   { font-size: 11.5px; color: var(--sfm-faint); margin-top: 5px; }
.sfm-stat-inactive { opacity: .7; }

/* ── Progress ────────────────────────────────────────────────────── */
.sfm-progress { background: var(--sfm-bg); border-radius: 99px; height: 7px; overflow: hidden; margin: 4px 0; }
#sfm-app.sfm-dark .sfm-progress { background: #0F1626; }
.sfm-progress-bar { height: 100%; border-radius: 99px; background: var(--sfm-accent); transition: width .6s ease; }
.sfm-progress-bar.success { background: var(--sfm-success); }
.sfm-progress-bar.danger  { background: var(--sfm-danger); }

.sfm-bar-chart { display: flex; flex-direction: column; gap: 10px; }
.sfm-bar-row   { display: flex; align-items: center; gap: 10px; }
.sfm-bar-label { width: 90px; font-size: 12.5px; color: var(--sfm-text-muted); text-align: right; flex-shrink: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sfm-bar-value { font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.sfm-bar-row .sfm-progress { flex: 1; margin: 0; }

/* ── Tables ──────────────────────────────────────────────────────── */
.sfm-table-wrap { overflow-x: auto; border-radius: var(--sfm-radius-sm); border: 1px solid var(--sfm-border); }
#sfm-pmts-table th { padding: 6px 8px; font-size: 11px; }
#sfm-pmts-table td { padding: 5px 8px; font-size: 12px; }
#sfm-pmts-table .sfm-btn-sm { padding: 3px 7px; font-size: 11px; }
.sfm-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.sfm-table th { background: var(--sfm-bg); padding: 10px 12px; text-align: left; font-size: 10.5px; font-weight: 700; color: var(--sfm-faint); text-transform: uppercase; letter-spacing: .06em; border-bottom: 1px solid var(--sfm-border); white-space: nowrap; }
.sfm-table td { padding: 11px 12px; border-bottom: 1px solid var(--sfm-border); vertical-align: middle; }
.sfm-table tr:last-child td { border-bottom: none; }
.sfm-table tbody tr:hover { background: var(--sfm-bg); }
.sfm-actions-cell { white-space: nowrap; }
.sfm-fw-bold { font-weight: 600; }
.sfm-text-muted   { color: var(--sfm-text-muted); }
.sfm-text-success { color: var(--sfm-success); }
.sfm-text-danger  { color: var(--sfm-danger); }

/* ── Badges ──────────────────────────────────────────────────────── */
.sfm-badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.sfm-badge-blue   { background: var(--sfm-accent-tint); color: var(--sfm-accent-dark); }
.sfm-badge-green  { background: var(--sfm-success-tint); color: var(--sfm-success); }
.sfm-badge-red    { background: var(--sfm-danger-tint); color: var(--sfm-danger); }
.sfm-badge-yellow { background: var(--sfm-accent-tint); color: var(--sfm-accent-dark); }
.sfm-badge-gray   { background: var(--sfm-bg); color: var(--sfm-text-muted); border: 1px solid var(--sfm-border); }
.sfm-badge-purple { background: var(--sfm-purple-tint); color: var(--sfm-purple); }
.sfm-badge-teal   { background: var(--sfm-teal-tint); color: var(--sfm-teal); }

/* ── Buttons ─────────────────────────────────────────────────────── */
.sfm-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px; border-radius: var(--sfm-radius-sm); font-size: 13px; font-weight: 600;
  cursor: pointer; border: 1px solid transparent; transition: filter .12s, background .12s, color .12s;
  white-space: nowrap; text-decoration: none; line-height: 1; font-family: inherit;
}
.sfm-btn:disabled { opacity: .55; cursor: not-allowed; }
.sfm-btn-primary { background: var(--sfm-accent); color: var(--sfm-ink); border-color: var(--sfm-accent); }
.sfm-btn-primary:hover { background: var(--sfm-accent-dark); color: #fff; }
.sfm-btn-success { background: var(--sfm-success); color: #fff; border-color: var(--sfm-success); }
.sfm-btn-success:hover { filter: brightness(1.1); }
.sfm-btn-danger  { background: var(--sfm-danger-tint); color: var(--sfm-danger); border-color: #EFC7BE; }
.sfm-btn-danger:hover { background: var(--sfm-danger); color: #fff; border-color: var(--sfm-danger); }
.sfm-btn-ghost   { background: transparent; color: var(--sfm-text); border-color: var(--sfm-border); }
.sfm-btn-ghost:hover { background: var(--sfm-bg); }
.sfm-btn-sm { padding: 5px 11px; font-size: 12px; }

/* ── Forms ───────────────────────────────────────────────────────── */
.sfm-form-group  { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.sfm-form-row    { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sfm-form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--sfm-border); }
.sfm-label       { font-size: 11px; font-weight: 700; color: var(--sfm-text-muted); text-transform: uppercase; letter-spacing: .06em; }

.sfm-input, .sfm-select, .sfm-textarea {
  width: 100%; padding: 8px 11px;
  border: 1px solid var(--sfm-border); border-radius: var(--sfm-radius-sm);
  background: var(--sfm-bg); color: var(--sfm-text);
  font-size: 13px; font-family: inherit; transition: border-color .15s, background .15s;
  appearance: none;
}
.sfm-input:focus, .sfm-select:focus, .sfm-textarea:focus {
  outline: none; border-color: var(--sfm-accent); background: var(--sfm-surface);
}
.sfm-select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%235B6472' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: calc(100% - 10px) center; padding-right: 28px; }
.sfm-textarea { resize: vertical; min-height: 72px; }

/* ── Toggle Switch ───────────────────────────────────────────────── */
.sfm-toggle { display: flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; }
.sfm-toggle input { display: none; }
.sfm-toggle-track {
  width: 40px; height: 22px; background: var(--sfm-border); border-radius: 99px;
  transition: background .2s; position: relative; flex-shrink: 0;
}
.sfm-toggle-track::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 16px; height: 16px; border-radius: 50%; background: #fff;
  transition: transform .2s; box-shadow: 0 1px 3px rgba(22,33,58,.2);
}
.sfm-toggle input:checked + .sfm-toggle-track { background: var(--sfm-accent); }
.sfm-toggle input:checked + .sfm-toggle-track::after { transform: translateX(18px); }
.sfm-toggle-label-text { font-size: 13px; font-weight: 500; color: var(--sfm-text); }

/* ── Modal ───────────────────────────────────────────────────────── */
.sfm-modal-overlay {
  position: fixed; inset: 0; background: rgba(22,33,58,.45);
  display: flex; align-items: flex-start; justify-content: center;
  z-index: 9000; padding: 20px; overflow-y: auto;
}
.sfm-modal {
  background: var(--sfm-surface);
  border-radius: 16px;
  width: 100%; max-width: 520px;
  box-shadow: var(--sfm-shadow-lg);
  max-height: calc(100vh - 40px);
  display: flex; flex-direction: column;
  margin: auto;
  animation: sfm-modal-in .2s ease;
}
.sfm-modal-wide { max-width: 760px; }
@keyframes sfm-modal-in { from { opacity:0; transform:translateY(-16px); } to { opacity:1; transform:translateY(0); } }

.sfm-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--sfm-border); flex-shrink: 0;
}
.sfm-modal-header h3 { margin: 0; font-size: 16px; }
.sfm-modal-close {
  background: none; border: none; font-size: 18px; cursor: pointer;
  color: var(--sfm-text-muted); padding: 4px; border-radius: 6px; line-height: 1;
  transition: background .15s;
}
.sfm-modal-close:hover { background: var(--sfm-bg); color: var(--sfm-text); }

.sfm-modal-body {
  padding: 20px; overflow-y: auto; flex: 1;
  -webkit-overflow-scrolling: touch;
}

.sfm-modal-section-title { font-weight: 700; font-size: 12px; color: var(--sfm-text-muted); text-transform: uppercase; letter-spacing: .06em; margin: 16px 0 8px; }

/* ── Tabs ────────────────────────────────────────────────────────── */
.sfm-tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--sfm-border); margin-bottom: 20px; flex-wrap: wrap; }
.sfm-tab  { background: none; border: none; padding: 10px 16px; font-size: 13px; font-weight: 600; cursor: pointer; color: var(--sfm-text-muted); border-radius: 8px 8px 0 0; transition: color .15s; font-family: inherit; }
.sfm-tab.active { color: var(--sfm-accent-dark); border-bottom: 2px solid var(--sfm-accent); margin-bottom: -2px; }
.sfm-tab:hover:not(.active) { color: var(--sfm-text); background: var(--sfm-bg); }

/* ── Hint / Info Box ─────────────────────────────────────────────── */
.sfm-hint-box { background: var(--sfm-accent-tint); border: 1px solid #F0D9A8; border-radius: 8px; padding: 10px 14px; font-size: 12px; color: var(--sfm-accent-dark); margin-bottom: 12px; }
.sfm-opt-hint  { background: var(--sfm-purple-tint); border-color: #DCCBEF; color: var(--sfm-purple); }
.sfm-hidden    { display: none !important; }

/* ── Fee Account UI ──────────────────────────────────────────────── */
.sfm-fee-summary { display: flex; gap: 0; border: 1px solid var(--sfm-border); border-radius: var(--sfm-radius); overflow: hidden; margin-bottom: 16px; }
.sfm-fee-summary-item { flex: 1; padding: 12px 16px; text-align: center; background: var(--sfm-bg); }
.sfm-fee-summary-item + .sfm-fee-summary-item { border-left: 1px solid var(--sfm-border); }
.sfm-fee-summary-item span  { font-size: 10.5px; color: var(--sfm-text-muted); display: block; margin-bottom: 4px; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; }
.sfm-fee-summary-item strong { font-size: 16px; font-weight: 700; }

.sfm-optional-section { margin-top: 16px; padding: 14px; background: var(--sfm-purple-tint); border: 1px solid #DCCBEF; border-radius: var(--sfm-radius-sm); }
.sfm-optional-title   { font-size: 11px; font-weight: 700; color: var(--sfm-purple); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 10px; }
.sfm-optional-fee-row { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid #DCCBEF; flex-wrap: wrap; gap: 8px; }
.sfm-optional-fee-row:last-child { border-bottom: none; }

/* ── Parent Card ─────────────────────────────────────────────────── */
.sfm-parent-card { display: flex; justify-content: space-between; align-items: center; padding: 10px 12px; background: var(--sfm-bg); border-radius: var(--sfm-radius-sm); margin-bottom: 8px; gap: 8px; flex-wrap: wrap; }

/* ── Student Header Grid ─────────────────────────────────────────── */
.sfm-student-header-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; margin-bottom: 16px; padding: 14px; background: var(--sfm-bg); border-radius: var(--sfm-radius-sm); }
.sfm-student-header-grid .sfm-label { margin-bottom: 4px; }

/* ── Payment Methods Grid ────────────────────────────────────────── */
.sfm-methods-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 4px; }
.sfm-method-card  { padding: 8px 14px; background: var(--sfm-bg); border: 1px solid var(--sfm-border); border-radius: var(--sfm-radius-sm); font-size: 13px; font-weight: 600; }

/* ── Toast ────────────────────────────────────────────────────────── */
.sfm-toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 99999;
  padding: 12px 20px; border-radius: var(--sfm-radius-sm); font-size: 13px; font-weight: 600;
  box-shadow: var(--sfm-shadow-lg); opacity: 0; pointer-events: none;
  transform: translateY(10px); transition: opacity .3s, transform .3s;
  max-width: 340px; background: var(--sfm-ink); color: #fff;
}
.sfm-toast.show { opacity: 1; transform: translateY(0); }
.sfm-toast.error   { background: var(--sfm-danger); }
.sfm-toast.success { background: var(--sfm-success); }

/* ── Loading ─────────────────────────────────────────────────────── */
.sfm-loading { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 20px; color: var(--sfm-text-muted); gap: 12px; }
.sfm-spinner { width: 32px; height: 32px; border: 3px solid var(--sfm-border); border-top-color: var(--sfm-accent); border-radius: 50%; animation: sfm-spin .7s linear infinite; }
@keyframes sfm-spin { to { transform: rotate(360deg); } }

/* ── Empty State ─────────────────────────────────────────────────── */
.sfm-empty { text-align: center; padding: 60px 20px; color: var(--sfm-text-muted); }
.sfm-empty-icon { font-size: 44px; margin-bottom: 12px; opacity: .8; }
.sfm-empty h3 { margin: 0 0 8px; color: var(--sfm-text); }

/* ── Pagination ──────────────────────────────────────────────────── */
.sfm-pagination { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 16px 0; }

/* ── Reports ─────────────────────────────────────────────────────── */
.sfm-report-total-row td { font-weight: 700; background: var(--sfm-bg); }

/* ══════════════════════════════════════════════
   MOBILE / RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 768px) {
  #sfm-app { display: block; }

  .sfm-sidebar {
    position: fixed; top: 0; left: 0; bottom: 0;
    transform: translateX(-100%);
    z-index: 200;
  }
  .sfm-sidebar.open { transform: translateX(0); box-shadow: 4px 0 20px rgba(22,33,58,.3); }

  .sfm-main { height: 100vh; }

  .sfm-hamburger { display: flex !important; }

  .sfm-search-input { width: 130px; }

  .sfm-stats-grid { grid-template-columns: 1fr 1fr; }
  .sfm-grid-2     { grid-template-columns: 1fr; }
  .sfm-form-row   { grid-template-columns: 1fr; }
  .sfm-student-header-grid { grid-template-columns: 1fr 1fr; }
  .sfm-fee-summary { flex-direction: column; }
  .sfm-fee-summary-item + .sfm-fee-summary-item { border-left: none; border-top: 1px solid var(--sfm-border); }

  .sfm-content { padding: 12px; }

  .sfm-modal-overlay { padding: 0; align-items: flex-end; }
  .sfm-modal {
    border-radius: 20px 20px 0 0;
    max-width: 100%;
    max-height: 92vh;
    width: 100%;
    margin: 0;
  }
  .sfm-modal-wide { max-width: 100%; }
}

@media (max-width: 480px) {
  .sfm-stats-grid { grid-template-columns: 1fr; }
  .sfm-stat-card  { padding: 12px; }
  .sfm-stat-value { font-size: 17px; }
  .sfm-topbar-title { font-size: 14px; }
  .sfm-search-wrap  { display: none; }
  .sfm-section-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .sfm-section-actions { width: 100%; }
  .sfm-table th, .sfm-table td { padding: 8px 10px; font-size: 12px; }

  /* ── Tabs: tighter on small screens ── */
  .sfm-tab { padding: 8px 10px; font-size: 12px; }

  /* ── Fee summary bar: stack items vertically ── */
  .sfm-fee-summary { flex-direction: column; }
  .sfm-fee-summary-item { padding: 10px 14px; }
  .sfm-fee-summary-item strong { font-size: 14px; }

  /* ── Fee table inside student view: hide Progress column ── */
  #sfm-fee-tbl th:last-child,
  #sfm-fee-tbl td:last-child { display: none; }

  /* ── Due amount input in edit mode ── */
  .sfm-due-inp { width: 90px !important; padding: 4px 6px !important; font-size: 12px; }

  /* ── Optional fee rows: stack on narrow screens ── */
  .sfm-optional-fee-row { flex-direction: column; align-items: flex-start; gap: 6px; }
  .sfm-optional-fee-row .sfm-btn { align-self: flex-end; }

  /* ── Modal: tighter padding on very small screens ── */
  .sfm-modal-body { padding: 14px; }
  .sfm-modal-header { padding: 12px 14px; }
}

/* ── Edit Payment modal info / warning boxes ─────────────────────── */
.sfm-edit-pmt-info {
  background: var(--sfm-bg);
  border: 1px solid var(--sfm-border);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--sfm-text);
}
.sfm-edit-pmt-warn {
  background: var(--sfm-accent-tint);
  border-left: 3px solid var(--sfm-warning);
  border-radius: 6px;
  padding: 10px 14px;
  margin-bottom: 16px;
  font-size: 12px;
  color: #7A5713;
}

/* ── Dark mode specific ───────────────────────────────────────────── */
#sfm-app.sfm-dark .sfm-table th { background: #0F1626; }
#sfm-app.sfm-dark .sfm-table tbody tr:hover { background: #0F1626; }
#sfm-app.sfm-dark .sfm-badge-blue   { background: #3A2E15; color: #F0C878; }
#sfm-app.sfm-dark .sfm-badge-yellow { background: #3A2E15; color: #F0C878; }
#sfm-app.sfm-dark .sfm-badge-green  { background: #132A22; color: #7FCBA3; }
#sfm-app.sfm-dark .sfm-badge-red    { background: #2E1712; color: #E8A090; }
#sfm-app.sfm-dark .sfm-badge-purple { background: #211A33; color: #C4A8E8; }
#sfm-app.sfm-dark .sfm-badge-teal   { background: #0F2624; color: #7FD4CB; }
#sfm-app.sfm-dark .sfm-optional-section { background: #211A33; border-color: #4A3A6B; }
#sfm-app.sfm-dark .sfm-optional-title   { color: #C4A8E8; }
#sfm-app.sfm-dark .sfm-optional-fee-row { border-color: #4A3A6B; }
#sfm-app.sfm-dark .sfm-parent-card      { background: #0F1626; }
#sfm-app.sfm-dark .sfm-student-header-grid { background: #0F1626; }
#sfm-app.sfm-dark .sfm-fee-summary { background: #0F1626; }
#sfm-app.sfm-dark .sfm-fee-summary-item { background: #0F1626; }
#sfm-app.sfm-dark .sfm-method-card { background: #0F1626; }
#sfm-app.sfm-dark .sfm-hint-box { background: #3A2E15; border-color: #6B5220; color: #F0C878; }
#sfm-app.sfm-dark .sfm-edit-pmt-info {
  background: #0F1626 !important;
  border-color: #2A3757 !important;
  color: #CBD5E1 !important;
}
#sfm-app.sfm-dark .sfm-edit-pmt-warn {
  background: #3A2E15 !important;
  border-left-color: #C6871C !important;
  color: #F0C878 !important;
}
#sfm-app.sfm-dark .sfm-pmt-date-input {
  background: #182236;
  color: #EAEDF5;
  border-color: #2A3757;
}
#sfm-app.sfm-dark .sfm-report-summary-item {
  background: var(--sfm-bg-card, var(--sfm-surface));
  border-color: var(--sfm-border);
}

/* ── Payment mode toggle ──────────────────────────────────────────── */
#sfm-preset-section,
#sfm-manual-section {
  transition: opacity 0.15s;
}
#sfm-manual-section .sfm-form-row {
  margin-bottom: 6px;
}
#sfm-mode-preset,
#sfm-mode-manual {
  transition: background 0.15s, color 0.15s;
}

/* ── Warning button (active edit mode) ───────────────────────────── */
#sfm-app .sfm-btn-warning {
  background: var(--sfm-warning);
  color: #fff;
  border-color: var(--sfm-warning);
}
#sfm-app .sfm-btn-warning:hover { filter: brightness(1.1); }

/* ── Class filter pills ───────────────────────────────────────────── */
.sfm-pill {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  border: 1.5px solid var(--sfm-border);
  background: transparent;
  color: var(--sfm-text);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}
.sfm-pill:hover {
  border-color: var(--sfm-accent);
  color: var(--sfm-accent-dark);
}
.sfm-pill-active {
  background: var(--sfm-accent);
  border-color: var(--sfm-accent);
  color: var(--sfm-ink) !important;
}
#sfm-app.sfm-dark .sfm-pill {
  border-color: #2A3757;
  color: #CBD5E1;
}
#sfm-app.sfm-dark .sfm-pill:hover {
  border-color: var(--sfm-accent);
  color: var(--sfm-accent);
}
#sfm-app.sfm-dark .sfm-pill-active { color: var(--sfm-ink) !important; }

/* ── BIB / Report Summary ─────────────────────────────────────────────────── */
.sfm-report-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.sfm-report-summary-item {
  background: var(--sfm-bg-card, var(--sfm-surface));
  border: 1px solid var(--sfm-border);
  border-radius: var(--sfm-radius-sm);
  padding: 14px 16px;
}
.sfm-report-summary-label {
  font-size: 10.5px;
  color: var(--sfm-text-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
  margin-bottom: 4px;
}
.sfm-report-summary-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--sfm-text);
}

/* ── Stationery & BIB print ───────────────────────────────────────────────── */
@media print {
  .sfm-sidebar, .sfm-topbar, .sfm-section-actions, .sfm-filters-bar { display: none !important; }
  .sfm-btn:not(.sfm-print-keep) { display: none !important; }
  #sfm-content { margin: 0; padding: 0; }
  .sfm-card { box-shadow: none; border: 1px solid #ddd; break-inside: avoid; }
}

/* ── Force correct screen visibility (prevents print styles leaking on mobile) */
@media screen {
  .sfm-btn { display: inline-flex !important; }
  .sfm-section-actions { display: flex !important; }
  .sfm-filters-bar { display: flex !important; }
  .sfm-topbar { display: flex !important; }
}

/* ── Row action dropdown menu ─────────────────────────────────────── */
.sfm-row-menu { position: relative; display: inline-block; }
.sfm-row-menu-btn {
  background: none; border: 1px solid var(--sfm-border); border-radius: 7px;
  padding: 4px 9px; font-size: 16px; line-height: 1; cursor: pointer;
  color: var(--sfm-text-muted); transition: background .15s, color .15s;
}
.sfm-row-menu-btn:hover { background: var(--sfm-bg); color: var(--sfm-text); }
.sfm-row-menu-list {
  display: none; position: absolute; right: 0; top: calc(100% + 4px);
  background: var(--sfm-surface); border: 1px solid var(--sfm-border);
  border-radius: var(--sfm-radius-sm); box-shadow: var(--sfm-shadow-lg);
  min-width: 170px; z-index: 9999; overflow: hidden;
}
.sfm-dark .sfm-row-menu-list button.receipt { background: #3A2E15; color: #F0C878; }
.sfm-dark .sfm-row-menu-list button.receipt:hover { background: #4A3A1A; }
.sfm-dark .sfm-row-menu-list button.danger { background: #2E1712; color: #E8A090; }
.sfm-dark .sfm-row-menu-list button.danger:hover { background: #3E1F18; }
.sfm-row-menu.open .sfm-row-menu-list { display: block; }
.sfm-row-menu-list button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px 14px; border: none; cursor: pointer;
  font-size: 13px; font-weight: 500; text-align: left;
  transition: background .12s, transform .1s; font-family: inherit;
  background: none; color: var(--sfm-text);
}
.sfm-row-menu-list button.receipt {
  background: var(--sfm-accent-tint); color: var(--sfm-accent-dark);
}
.sfm-row-menu-list button.receipt:hover { background: #F0DFB0; }
.sfm-row-menu-list button.danger {
  background: var(--sfm-danger-tint); color: var(--sfm-danger);
}
.sfm-row-menu-list button.danger:hover { background: #F5D6CC; }
.sfm-row-menu-list hr { margin: 0; border: none; border-top: 1px solid var(--sfm-border); }
/* Ensure actions td establishes its own stacking context */
.sfm-table td.sfm-actions-menu-cell { position: relative; z-index: 10; overflow: visible; }

/* ── Button loading state (double-click protection) ─────────────────────── */
.sfm-btn-spinner {
  display: inline-block;
  width: 13px; height: 13px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: sfm-spin .6s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}
/* Dark spinner variant for ghost buttons */
.sfm-btn-ghost .sfm-btn-spinner,
.sfm-btn-danger .sfm-btn-spinner {
  border-color: rgba(22,33,58,.2);
  border-top-color: currentColor;
}
@keyframes sfm-spin { to { transform: rotate(360deg); } }

/* ── Search/loading state inside list containers ────────────────────────── */
.sfm-search-loading {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 16px; color: var(--sfm-text-muted);
  font-size: 13px;
}
.sfm-staff-results { border: 1px solid var(--sfm-border); border-radius: 8px; max-height: 240px; overflow-y: auto; margin-top: 4px; }
.sfm-staff-result-item { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 14px; cursor: pointer; border-bottom: 1px solid var(--sfm-border); transition: background .1s; }
.sfm-staff-result-item:last-child { border-bottom: none; }
.sfm-staff-result-item:hover { background: var(--sfm-bg); }
.sfm-staff-result-disabled { cursor: default; opacity: .55; }
.sfm-staff-result-disabled:hover { background: none; }

.sfm-spinner-sm {
  width: 16px; height: 16px;
  border: 2px solid var(--sfm-border);
  border-top-color: var(--sfm-accent);
  border-radius: 50%;
  animation: sfm-spin .6s linear infinite;
  flex-shrink: 0;
}

/* Fee structure: multi-class checklist */
.sfm-class-checklist {
  border: 1px solid var(--sfm-border);
  border-radius: var(--sfm-radius-sm);
  max-height: 190px;
  overflow-y: auto;
  padding: 6px 4px;
  background: var(--sfm-surface);
}
.sfm-class-checklist label {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; cursor: pointer; font-size: 13px; border-radius: 6px;
}
.sfm-class-checklist label:hover { background: var(--sfm-bg); }
.sfm-class-checklist label.sfm-all-classes-row {
  font-weight: 600; border-bottom: 1px solid var(--sfm-border); margin-bottom: 4px; padding-bottom: 8px;
}
.sfm-class-checklist input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--sfm-accent); flex-shrink: 0; }
.sfm-class-checklist .sfm-class-item.sfm-disabled { opacity: .45; pointer-events: none; }