@charset "UTF-8";

:root {
  --font-ui: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #f7f9fc;
  --surface-3: #edf2f7;
  --text: #172033;
  --muted: #667085;
  --line: #e1e8f0;
  --line-strong: #c7d2e0;
  --input-border: #cbd5e1;
  --accent: #2563eb;
  --accent-2: #1d4ed8;
  --accent-soft: #eaf2ff;
  --primary-action: #2563eb;
  --primary-contrast: #ffffff;
  --grid-dot: rgba(37, 99, 235, .08);
  --ok: #137a3f;
  --warn: #a15c00;
  --bad: #c4324b;
  --ok-bg: #e8f8ee;
  --warn-bg: #fff4df;
  --bad-bg: #fff0f3;
  --shadow: 0 18px 45px rgba(28, 45, 75, .12);
  --shadow-soft: 0 8px 24px rgba(28, 45, 75, .07);
  --radius: 18px;
  --radius-sm: 11px;
  --sidebar: 252px;
  --mobile-nav: 78px;
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #0b1220;
  --surface: #111a2b;
  --surface-2: #172337;
  --surface-3: #22314a;
  --text: #f3f6fb;
  --muted: #9aa8ba;
  --line: rgba(203, 213, 225, .11);
  --line-strong: rgba(203, 213, 225, .23);
  --input-border: #34445f;
  --accent: #60a5fa;
  --accent-2: #93c5fd;
  --accent-soft: rgba(59, 130, 246, .16);
  --primary-action: #3b82f6;
  --primary-contrast: #ffffff;
  --grid-dot: rgba(96, 165, 250, .1);
  --ok-bg: rgba(34, 197, 94, .14);
  --warn-bg: rgba(245, 158, 11, .16);
  --bad-bg: rgba(244, 63, 94, .14);
  --shadow: 0 24px 60px rgba(0, 0, 0, .34);
  --shadow-soft: 0 10px 28px rgba(0, 0, 0, .2);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html {
  min-height: 100%;
  overflow-x: hidden;
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 92% -8%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 34%),
    radial-gradient(circle, var(--grid-dot) .8px, transparent 1px);
  background-size: auto, 28px 28px;
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.modal-open { overflow: hidden; }

button,
input,
select,
textarea,
a {
  font: inherit;
  letter-spacing: 0;
}

button,
a,
input,
select,
textarea {
  transition: border-color .16s ease, background-color .16s ease, color .16s ease, box-shadow .16s ease;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

button:active,
a:active { transform: translateY(1px); }

img { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
a { color: inherit; text-decoration: none; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 400;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 9px 12px;
  background: var(--text);
  color: var(--surface);
  font-size: 12px;
  font-weight: 600;
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 62%, transparent);
  outline-offset: 2px;
}

button:disabled,
select:disabled,
input:disabled {
  cursor: not-allowed;
  opacity: .58;
}

.page { display: none; }
.page.active { display: grid; gap: 16px; }
.mobile-only, .mobile-only-page { display: none; }

.app {
  min-height: 100vh;
  padding: 30px 32px 56px calc(var(--sidebar) + 50px);
}

.page,
.topbar,
.system-notice {
  width: min(1180px, 100%);
  margin-inline: auto;
}

.sidebar {
  position: fixed;
  inset: 20px auto 20px 20px;
  z-index: 30;
  display: flex;
  flex-direction: column;
  width: var(--sidebar);
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.brand,
.mobile-top-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand {
  padding: 4px 4px 18px;
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.brand strong,
.mobile-top-brand strong {
  display: block;
  overflow: hidden;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand small,
.mobile-top-brand small {
  display: block;
  color: var(--muted);
  font-size: 11px;
}

.nav {
  display: grid;
  gap: 5px;
  padding-top: 14px;
}

.nav-label,
.section-label,
.eyebrow,
.panel-head span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.nav-label { padding: 8px 10px 3px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  min-height: 43px;
  border: 0;
  border-radius: 12px;
  padding: 0 12px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
}

.nav-item:hover {
  background: color-mix(in srgb, var(--accent-soft) 45%, var(--surface-2));
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.nav-icon {
  display: block;
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.theme-icon {
  display: block;
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

@media (hover: hover) {
  .row-card:hover,
  .student-card:hover,
  .student-row:hover,
  .kpi:hover,
  .mini-stat:hover,
  .more-card:hover,
  .booking-class-card:hover {
    border-color: var(--line-strong);
  }
}

.ghost-btn,
.soft-btn,
.primary-btn,
.mini-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 11px;
  padding: 0 15px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.primary-btn {
  border: 1px solid var(--primary-action);
  background: var(--primary-action);
  color: var(--primary-contrast);
  box-shadow: 0 7px 16px color-mix(in srgb, var(--primary-action) 22%, transparent);
}

.primary-btn:hover { background: var(--accent-2); border-color: var(--accent-2); }


.soft-btn,
.ghost-btn,
.mini-btn {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
}

.soft-btn:hover,
.ghost-btn:hover,
.mini-btn:hover {
  background: var(--surface-2);
}

.ghost-btn {
  margin-top: auto;
  width: 100%;
}

.mini-btn {
  min-height: 34px;
  border-radius: 9px;
  padding-inline: 10px;
  font-size: 12px;
}

.danger-mini,
.mini-btn.danger,
.danger-more {
  border-color: color-mix(in srgb, var(--bad) 25%, var(--line));
  background: var(--bad-bg);
  color: var(--bad);
}

.theme-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 130;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  color: var(--text);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
  margin-bottom: 20px;
}

.topbar h1 {
  margin-top: 3px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(32px, 3.5vw, 46px);
  font-weight: 750;
  line-height: 1.02;
  letter-spacing: -.045em;
}

.mobile-top-brand { display: none; }

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.mode-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 11px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--input-border);
  border-radius: 11px;
  outline: none;
  padding: 0 13px;
  background: var(--surface);
  color: var(--text);
}

textarea {
  min-height: 96px;
  padding-block: 10px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: color-mix(in srgb, var(--accent) 70%, var(--line));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}

input::placeholder,
textarea::placeholder {
  color: color-mix(in srgb, var(--muted) 72%, transparent);
}

.global-search {
  position: relative;
  width: min(320px, 32vw);
}

.global-results {
  position: absolute;
  top: calc(100% + 7px);
  right: 0;
  z-index: 80;
  display: none;
  width: min(360px, 86vw);
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.global-results.open { display: grid; gap: 4px; }

.global-results button,
.global-empty {
  display: grid;
  gap: 2px;
  width: 100%;
  min-height: 50px;
  border: 0;
  border-radius: 9px;
  padding: 8px 10px;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.global-results button:hover { background: var(--surface-2); }
.global-results span,
.global-empty { color: var(--muted); font-size: 12px; }

.system-notice {
  display: none;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 11px 14px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
}

.system-notice:not(:empty) {
  display: flex;
  gap: 8px;
  align-items: center;
}

.system-notice strong {
  flex: 0 0 auto;
  color: var(--text);
  white-space: nowrap;
}

.panel,
.row-card,
.student-card,
.student-row,
.kpi,
.mini-stat,
.today-class,
.calendar-day,
.payment-priority-card,
.action-item,
.action-focus-card,
.operation-card,
.report-note,
.schedule-preview,
.check-item,
.class-student-option,
.more-card,
.booking-form,
.booking-board,
.booking-class-card,
.student-confirm-card,
.login-box,
.modal {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  box-shadow: none;
}

.panel {
  display: grid;
  gap: 16px;
  padding: 19px;
  box-shadow: var(--shadow-soft);
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.panel-head h2 {
  margin-top: 2px;
  color: var(--text);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.025em;
  line-height: 1.08;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.kpi-grid,
.finance-summary,
.report-grid,
.student-report-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.finance-summary,
.report-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.kpi {
  min-height: 112px;
  padding: 17px;
  background: linear-gradient(145deg, var(--surface), color-mix(in srgb, var(--surface-2) 72%, var(--surface)));
}

.kpi span,
.mini-stat span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
}

.kpi strong,
.mini-stat strong {
  display: block;
  margin-top: 7px;
  overflow-wrap: normal;
  color: var(--text);
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 750;
  line-height: 1;
}

.mini-stat strong { white-space: nowrap; }

.kpi small,
.mini-stat small,
.meta {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.mini-stat {
  min-height: 90px;
  padding: 14px;
}

.kpi-ok,
.mini-stat.kpi-ok,
.payment-paid,
.confirm-yes { border-left-color: var(--line); }
.kpi-warn,
.mini-stat.kpi-warn,
.payment-pending,
.confirm-no { border-left-color: var(--line); }
.kpi-bad,
.mini-stat.kpi-bad,
.wait-needs-reply { border-left-color: var(--line); }

.focus-strip { display: grid; }

.day-command,
.report-hero,
.booking-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 22px;
  border-top: 0;
  padding: 26px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent-soft) 55%, var(--surface)), var(--surface) 58%);
  box-shadow: var(--shadow-soft);
}

.day-command h2,
.report-hero h2,
.booking-hero h1 {
  margin-top: 4px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(28px, 4.2vw, 48px);
  font-weight: 750;
  line-height: 1.04;
  letter-spacing: -.045em;
}

.day-command p,
.report-hero .meta,
.booking-hero p:not(.eyebrow) {
  margin-top: 8px;
  max-width: 720px;
  color: var(--muted);
}

.day-command-actions,
.report-hero .actions {
  display: grid;
  gap: 8px;
  min-width: 180px;
}

.quick-actions:empty,
.payment-priority:empty { display: none; }

.list,
.student-list,
.action-feed,
.student-action-list,
.check-list,
.student-confirm-list,
.booking-class-list {
  display: grid;
  gap: 8px;
}

.row-card,
.student-row,
.action-item,
.check-item,
.student-confirm-card,
.payment-priority-card,
.class-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 15px;
  transition: border-color .16s ease, background-color .16s ease, transform .16s ease;
}

.row-card:hover,
.student-row:hover,
.action-item:hover,
.payment-priority-card:hover,
.class-row:hover {
  border-color: color-mix(in srgb, var(--accent) 24%, var(--line));
  background: color-mix(in srgb, var(--accent-soft) 22%, var(--surface));
}

.compact-row { min-height: 60px; }

.row-card h3,
.student-card h3,
.operation-card h3 {
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
}

.link-title {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  font-weight: 600;
  text-align: left;
}

.compact-title { font-size: 15px; }

.actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  flex-wrap: wrap;
}

.pill-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 23px;
  max-width: 100%;
  border-radius: 999px;
  padding: 0 8px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.pill.ok,
.ok { background: var(--ok-bg); color: var(--ok); }
.pill.warn,
.warn { background: var(--warn-bg); color: var(--warn); }
.pill.bad,
.bad { background: var(--bad-bg); color: var(--bad); }

.confirm-teacher-button {
  border: 0;
  cursor: pointer;
  font: inherit;
}

.pill.ok::before,
.pill.warn::before,
.pill.bad::before {
  content: "";
  width: 5px;
  height: 5px;
  margin-right: 5px;
  border-radius: 50%;
  background: currentColor;
}

.empty {
  display: grid;
  place-items: center;
  min-height: 90px;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  padding: 20px;
  background: var(--surface-2);
  color: var(--muted);
  text-align: center;
}

.student-list-head,
.student-row {
  grid-template-columns: minmax(180px, 1.2fr) minmax(150px, .9fr) minmax(110px, .65fr) minmax(130px, .75fr) auto;
}

.student-list-head {
  display: grid;
  gap: 10px;
  padding: 0 12px 2px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.student-main,
.student-plan,
.student-frequency,
.student-payment { min-width: 0; }

.student-plan strong,
.student-frequency strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.student-grid,
#planGrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.student-card {
  display: grid;
  gap: 9px;
  padding: 15px;
}

.today-planner,
.class-calendar,
.payment-priority-grid,
.operation-grid,
.more-grid {
  display: grid;
  gap: 10px;
}

.today-class {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.today-class-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}

.class-timebox {
  display: grid;
  align-content: center;
  min-width: 78px;
  min-height: 66px;
  border-radius: 14px;
  padding: 10px;
  background: var(--surface-2);
  text-align: center;
}

.class-timebox span {
  color: var(--text);
  font-size: 20px;
  font-weight: 750;
  line-height: 1;
}

.class-timebox small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
}

.today-class .class-main {
  display: block;
}

.today-class .class-main strong,
.today-class .class-main span {
  display: block;
}

.today-class .class-main > strong {
  font-size: 16px;
}

.today-class .class-main > span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.class-calendar {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.calendar-day {
  min-height: 106px;
  padding: 10px;
  box-shadow: none;
}

.calendar-day.today {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: var(--accent-soft);
}

.calendar-day button {
  display: grid;
  gap: 2px;
  width: 100%;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.calendar-day strong { font-size: 14px; }
.calendar-day span,
.calendar-day small {
  display: block;
  color: var(--muted);
  font-size: 11px;
}

.class-main {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  min-width: 0;
}

#todayClasses .class-row {
  grid-template-columns: 1fr;
}

#todayClasses .class-row .actions {
  justify-content: flex-start;
}

#todayClasses .class-roster {
  display: none;
}

.class-time {
  display: grid;
  align-content: center;
  min-width: 66px;
  min-height: 60px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--text);
  text-align: center;
}

.class-time strong { color: var(--accent); font-size: 18px; font-weight: 750; line-height: 1; }
.class-time small { color: var(--muted); font-size: 11px; }

.roster-list {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding-top: 2px;
}

.roster-person {
  display: inline-grid;
  gap: 1px;
  max-width: 180px;
  border-radius: 10px;
  padding: 6px 8px;
  background: var(--surface-2);
}

.roster-person strong,
.roster-person small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.roster-person strong { font-size: 12px; }
.roster-person small { color: var(--muted); font-size: 10px; }

.payment-priority {
  display: grid;
  gap: 10px;
}

.payment-priority-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.payment-priority-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.operation-card {
  display: grid;
  gap: 16px;
  padding: 16px;
}

.operation-grid {
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
}

.operation-grid span {
  display: grid;
  gap: 3px;
  border-radius: 10px;
  padding: 10px;
  background: var(--surface-2);
}

.operation-grid strong { font-size: 16px; }
.operation-grid small { color: var(--muted); font-size: 11px; }

.action-item {
  grid-template-columns: 58px minmax(0, 1fr);
  align-items: start;
}

.action-item time {
  display: grid;
  gap: 5px;
  color: var(--text);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.action-item time small {
  width: fit-content;
  border-radius: 999px;
  padding: 2px 7px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 10px;
}

.action-line,
.action-meta-line {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.action-line strong {
  border-radius: 999px;
  padding: 3px 8px;
  background: var(--surface-2);
  font-size: 11px;
}

.action-line span { font-weight: 600; }
.action-item p { margin-top: 6px; color: var(--muted); font-size: 13px; }

.action-day {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 8px 0 2px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.action-day::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--line);
}

.action-focus {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.action-focus-card {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.action-focus-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.action-focus-row {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.form-group {
  display: grid;
  gap: 10px;
  min-width: 0;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px;
  background: var(--surface-2);
}

.form-group legend {
  padding: 0 4px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.schedule-preview {
  display: grid;
  gap: 4px;
  padding: 12px;
  background: var(--surface);
  box-shadow: none;
}

.schedule-preview span { color: var(--muted); font-size: 11px; font-weight: 600; }
.schedule-preview strong { font-size: 13px; }

.schedule-preview-dates {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-top: 5px;
}

.schedule-preview-dates small {
  border-radius: 999px;
  padding: 4px 7px;
  background: var(--surface-2);
  color: var(--muted);
}

.native-class-select { display: none; }

.class-students-picker {
  display: grid;
  gap: 9px;
}

.class-picker-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.class-picker-head span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.class-student-list {
  display: grid;
  gap: 7px;
  max-height: 280px;
  overflow: auto;
}

.class-student-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  padding: 10px;
  background: var(--surface);
  box-shadow: none;
}

.class-student-option.selected {
  border-color: color-mix(in srgb, var(--accent) 65%, var(--line));
  background: var(--accent-soft);
}

.class-student-option input {
  width: 18px;
  min-height: 18px;
  accent-color: var(--accent);
}

.class-student-option strong,
.class-student-option small { display: block; }
.class-student-option small { color: var(--muted); }

.modal-wrap,
.login-wall,
.booking-wall {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  overflow: auto;
  padding: calc(18px + env(safe-area-inset-top)) 14px calc(18px + env(safe-area-inset-bottom));
  background: rgba(15, 18, 16, .5);
  backdrop-filter: blur(6px);
}

.modal-wrap.open,
.login-wall.open {
  display: grid;
  place-items: center;
}

.booking-wall.open { display: block; }
.login-wall { z-index: 105; }
.booking-wall { z-index: 110; background: var(--bg); backdrop-filter: none; }

.login-box,
.modal {
  width: min(620px, 100%);
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding: 18px;
  box-shadow: var(--shadow);
}

.modal {
  position: relative;
  display: grid;
  gap: 12px;
}

.wide-modal { width: min(980px, 100%); }

.modal h2,
.login-copy h2 {
  color: var(--text);
  font-size: 24px;
  line-height: 1.05;
}

.close {
  position: sticky;
  top: 0;
  justify-self: end;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
}

.login-box {
  display: grid;
  gap: 14px;
  justify-items: stretch;
}

.login-logo {
  width: 74px;
  height: 74px;
}

.login-pin {
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.booking-shell {
  display: grid;
  gap: 14px;
  width: min(1040px, 100%);
  margin: 0 auto;
}

.booking-hero {
  grid-template-columns: auto minmax(0, 1fr);
}

.booking-logo {
  width: 84px;
  height: 84px;
  border-radius: 16px;
}

.booking-tabs {
  display: flex;
  gap: 6px;
  width: fit-content;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 4px;
  background: var(--surface);
}

.booking-tabs button {
  min-height: 42px;
  border: 0;
  border-radius: 10px;
  padding: 0 14px;
  background: transparent;
  color: var(--muted);
  font-weight: 600;
}

.booking-tabs button.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.booking-layout { display: grid; gap: 14px; }

.booking-pane {
  display: none;
  grid-template-columns: minmax(270px, 350px) minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.booking-pane.active { display: grid; }

.student-pane {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.student-pane .student-confirm-form {
  grid-column: 1 / -1;
  position: static;
}

.student-pane > .booking-board { min-width: 0; }

.student-booking-board {
  border-color: color-mix(in srgb, var(--accent) 36%, var(--line));
  background: color-mix(in srgb, var(--accent-soft) 34%, var(--surface));
}

.student-booking-board .booking-class-card { background: var(--surface); }

.student-slot-filters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0;
}

.student-slot-filters label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.student-slot-filters select {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0 9px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 13px;
}

.booking-form {
  display: grid;
  gap: 12px;
  position: sticky;
  top: 14px;
  padding: 18px;
}

.booking-board { padding: 18px; }
.booking-class-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.booking-class-list > .empty { grid-column: 1 / -1; }

.booking-class-card {
  display: grid;
  gap: 6px;
  min-height: 112px;
  border: 1px solid var(--line);
  padding: 15px;
  color: var(--text);
  text-align: left;
}

.booking-class-card span,
.booking-class-card small,
.booking-status {
  color: var(--muted);
  font-size: 12px;
}

.booking-class-card.is-full { opacity: .62; }
.booking-class-card:disabled { cursor: not-allowed; }
.admin-entry { justify-self: end; }

.student-confirm-head,
.student-confirm-summary {
  display: flex;
  gap: 7px;
  align-items: center;
  flex-wrap: wrap;
}

.student-confirm-card strong,
.student-confirm-card span,
.student-confirm-card small { display: block; }

.student-confirm-card span,
.student-confirm-card small {
  color: var(--muted);
  font-size: 12px;
}

.confirm-choice,
.attendance-actions,
.extra-attendance {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.mini-btn.active,
.mini-btn.present {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.extra-attendance input { flex: 1 1 220px; }
.extra-attendance select { flex: 0 1 160px; }
.attendance-title-pills { margin-top: 8px; }

.check-item.checked-in {
  border-color: color-mix(in srgb, var(--ok) 42%, var(--line));
  background: var(--ok-bg);
}

.check-item.likely-absent { background: var(--bad-bg); }

.report-columns { align-items: start; }

.report-note {
  padding: 14px;
  color: var(--muted);
}

.more-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.more-card {
  display: grid;
  gap: 5px;
  min-height: 118px;
  border: 1px solid var(--line);
  padding: 16px;
  background: var(--surface);
  background-color: var(--surface) !important;
  color: var(--text) !important;
  -webkit-appearance: none;
  appearance: none;
  text-align: left;
}

.more-card span,
.more-card small {
  color: var(--muted);
  font-size: 11px;
}

.more-card:hover,
.more-card:focus-visible { background-color: var(--surface-2) !important; }

[data-theme="dark"] .more-card {
  background-color: var(--surface) !important;
  color: var(--text) !important;
}

[data-theme="dark"] .more-card:hover,
[data-theme="dark"] .more-card:focus-visible { background-color: var(--surface-2) !important; }

.settings-layout {
  display: grid;
  gap: 16px;
}

.settings-intro {
  grid-template-columns: minmax(0, 1fr) minmax(250px, .58fr);
  align-items: end;
  padding: 20px;
}

.settings-intro h2,
.settings-danger-zone h2 {
  margin-top: 4px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 750;
  line-height: 1.04;
  letter-spacing: -.04em;
}

.settings-intro p,
.settings-danger-zone p {
  max-width: 680px;
  margin-top: 8px;
  color: var(--muted);
}

.settings-notice {
  display: grid;
  gap: 4px;
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 12px 14px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
}

.settings-notice strong { color: var(--text); }
.settings-helper { margin-top: -5px; }

.theme-picker {
  display: grid;
  gap: 10px;
}

.theme-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.theme-choice {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-width: 0;
  border: 1px solid var(--line);
  min-height: 88px;
  border-radius: 15px;
  padding: 13px;
  background: var(--surface);
  color: var(--text);
  text-align: left;
}

.theme-choice:hover,
.theme-choice:focus-visible,
.theme-choice.is-active {
  border-color: color-mix(in srgb, var(--accent) 62%, var(--line));
  background: color-mix(in srgb, var(--accent-soft) 55%, var(--surface));
}

.theme-choice-preview {
  display: flex;
  gap: 3px;
  align-items: center;
  width: 68px;
  height: 46px;
  border-radius: 12px;
  padding: 6px;
  background: var(--surface-2);
}

.theme-choice-preview i {
  display: block;
  width: 15px;
  height: 32px;
  border-radius: 6px;
  background: var(--theme-swatch);
}

.theme-choice-copy { display: grid; gap: 2px; min-width: 0; }
.theme-choice-copy strong { overflow: hidden; font-size: 14px; text-overflow: ellipsis; white-space: nowrap; }
.theme-choice-copy small { color: var(--muted); font-size: 12px; line-height: 1.4; }
.theme-choice-check { min-width: 16px; color: var(--accent); font-size: 18px; font-weight: 700; text-align: center; }

.settings-form {
  display: grid;
  gap: 12px;
}

.settings-form .form-group {
  background: var(--surface-2);
}

.check-control {
  display: flex;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  color: var(--text);
}

.check-control input {
  width: 17px;
  min-height: 17px;
  accent-color: var(--accent);
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.settings-saved {
  color: var(--muted);
  font-size: 11px;
}

.settings-preview-card {
  display: grid;
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  background: var(--surface-2);
}

.settings-preview-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 11px;
  align-items: center;
}

.preview-avatar {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary-contrast);
  font-size: 12px;
  font-weight: 700;
}

.settings-preview-head strong,
.settings-preview-head span { display: block; }
.settings-preview-head span { color: var(--muted); font-size: 12px; }
.preview-chevron { color: var(--accent); font-size: 26px !important; line-height: 1; }

.settings-preview-balance {
  display: grid;
  gap: 5px;
  border-radius: 16px;
  padding: 18px;
  background: var(--surface);
}

.settings-preview-balance > span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.settings-preview-balance strong {
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 750;
  letter-spacing: -.04em;
  line-height: 1;
}

.settings-preview-balance p { color: var(--muted); font-size: 12px; }

.settings-preview-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.settings-preview-stats span {
  display: grid;
  gap: 3px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: var(--surface);
}

.settings-preview-stats small { color: var(--muted); font-size: 10px; }
.settings-preview-stats strong { font-size: 15px; }

.settings-danger-zone {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
}

.settings-danger-zone > div { min-width: 0; }
.settings-danger-zone h2 { font-family: var(--font-ui); font-size: 20px; font-weight: 600; }

.list-more-btn,
.dashboard-more-btn { width: 100%; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(22px + env(safe-area-inset-bottom));
  z-index: 300;
  max-width: min(90vw, 420px);
  border-radius: 999px;
  padding: 11px 15px;
  background: var(--text);
  color: var(--surface);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity .18s ease, transform .18s ease;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (min-width: 981px) {
  .page-dashboard .panel,
  #page-dashboard .panel {
    min-height: 0;
  }
}

@media (min-width: 981px) and (max-width: 1100px) {
  .topbar {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 10px;
  }

  .topbar h1 {
    white-space: nowrap;
  }

  .top-actions {
    justify-content: flex-start;
  }

  .global-search {
    width: min(360px, 48vw);
  }
}

@media (max-width: 980px) {
  .app {
    padding: 14px 12px calc(var(--mobile-nav) + 22px + env(safe-area-inset-bottom));
  }

  .sidebar {
    inset: auto 0 0 0;
    z-index: 60;
    display: block;
    width: 100%;
    padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
    border-width: 1px 0 0;
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, .12);
  }

  .sidebar .brand,
  .sidebar .ghost-btn,
  .nav-label,
  .secondary-nav { display: none; }

  .nav {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 3px;
    padding-top: 0;
    overflow: hidden;
  }

  .nav-item {
    display: grid;
    place-items: center;
    gap: 2px;
    min-width: 0;
    min-height: 56px;
    padding: 6px 2px;
    border-radius: 12px;
    font-size: 10px;
    text-align: center;
  }

  .sidebar .nav-item.secondary-nav { display: none; }

  .nav-item span {
    display: block;
  }

  .nav-icon { width: 18px; height: 18px; }

  .mobile-only { display: grid; }
  .mobile-only-page.active { display: grid; }

  .theme-float {
    display: grid;
    right: 12px;
    bottom: calc(var(--mobile-nav) + 14px + env(safe-area-inset-bottom));
    width: 44px;
    height: 44px;
  }

  .topbar {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px 12px;
    align-items: center;
    margin-bottom: 14px;
  }

  .topbar > div:first-child {
    display: block;
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
  }

  .topbar > div:first-child .eyebrow { display: none; }

  .topbar h1 {
    overflow: hidden;
    font-size: clamp(22px, 6.5vw, 28px);
    line-height: 1.05;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mobile-top-brand {
    display: flex;
    grid-column: 1;
    grid-row: 1;
  }

  .mobile-top-brand small { display: none; }

  .top-actions {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: stretch;
  }

  .global-search {
    width: 100%;
    order: -1;
  }

  .top-actions > .soft-btn,
  .top-actions > .primary-btn,
  .mode-chip {
    flex: 1 1 110px;
  }

  .two-col,
  .booking-pane,
  .form-row,
  .action-focus {
    grid-template-columns: 1fr;
  }

  .kpi-grid,
  .finance-summary,
  .report-grid,
  .student-report-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .day-command,
  .report-hero,
  .booking-hero {
    grid-template-columns: 1fr;
  }

  .day-command-actions,
  .report-hero .actions {
    grid-template-columns: 1fr;
    min-width: 0;
  }

  .student-list-head { display: none; }

  .student-row,
  .row-card,
  .payment-priority-card,
  .student-confirm-card,
  .check-item,
  .today-class-head,
  .class-row {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .class-timebox {
    width: fit-content;
    min-width: 78px;
  }

  .actions {
    justify-content: flex-start;
  }

  .actions > *,
  .confirm-choice > * {
    flex: 1 1 auto;
  }

  .class-calendar {
    display: flex;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .class-calendar::-webkit-scrollbar { display: none; }
  .calendar-day { flex: 0 0 126px; }

  .payment-priority-grid,
  .booking-class-list {
    grid-template-columns: 1fr;
  }

  .settings-intro,
  .settings-danger-zone {
    grid-template-columns: 1fr;
  }

  .settings-danger-zone {
    align-items: start;
    flex-direction: column;
  }

  .settings-danger-zone .danger-mini { width: 100%; }

  .check-control { grid-column: 1 / -1; }

  .booking-form { position: static; }

  .modal-wrap {
    align-items: end;
    padding: 0;
  }

  .modal-wrap.open {
    display: grid;
    place-items: end stretch;
  }

  .modal {
    width: 100%;
    max-height: calc(100vh - 22px);
    border-radius: 16px 16px 0 0;
    padding: 14px 14px calc(20px + env(safe-area-inset-bottom));
  }
}

.theme-choice-preview {
  position: relative;
  overflow: hidden;
  width: 76px;
  height: 52px;
  align-items: flex-end;
  gap: 4px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.theme-choice-preview::before {
  position: absolute;
  inset: 6px 6px auto;
  height: 5px;
  border-radius: 999px;
  background: var(--theme-swatch);
  content: "";
}

.theme-choice-preview i {
  width: 14px;
  height: 28px;
  border-radius: 4px;
  background: var(--theme-swatch);
}

.theme-choice-copy small { display: block; }

/* Public experimental flow and class operations */
.booking-tabs [data-public-tab="student"] { order: -1; }
.booking-layout [data-public-pane="student"] { order: -1; }

.student-booking-board {
  grid-column: 1 / -1;
  border-color: color-mix(in srgb, var(--accent) 32%, var(--line));
  background: color-mix(in srgb, var(--accent-soft) 34%, var(--surface));
}

.student-booking-option {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  min-height: 82px;
  background: var(--surface);
}

.student-booking-option > div { display: grid; gap: 4px; }
.student-booking-option .mini-btn { align-self: center; }

.class-head-actions { align-items: center; }

.class-tools {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  background: var(--surface-2);
}

.class-tools > div { display: grid; gap: 3px; min-width: 0; }
.class-tools strong { color: var(--text); font-size: 14px; }
.class-tools .meta { margin-top: 0; }

.schedule-slots-field {
  display: grid;
  gap: 12px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px;
  background: var(--surface-2);
}

.schedule-slots-field legend { padding-inline: 4px; color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.schedule-slots { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; }
.schedule-slot-day { display: grid; gap: 7px; min-width: 0; }
.schedule-slot-day > strong { color: var(--text); font-size: 12px; }
.schedule-slot-day > div { display: grid; gap: 5px; }
.schedule-slot-day label { display: flex; flex-direction: row; align-items: center; gap: 6px; min-height: 30px; border: 1px solid var(--line); border-radius: 7px; padding: 4px 7px; background: var(--surface); color: var(--text); font-size: 11px; }
.schedule-slot-day input { width: 15px; min-height: 15px; accent-color: var(--accent); }
.schedule-notify-control { padding: 8px 0; }

.modal-actions { justify-content: flex-end; }

@media (max-width: 760px) {
  .class-head-actions { align-items: stretch; flex-direction: column; }
  .class-head-actions > * { width: 100%; }
  .class-tools { align-items: stretch; flex-direction: column; }
  .class-tools > button { width: 100%; }
  .schedule-slots { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 520px) {
  .booking-tabs { width: 100%; }
  .booking-tabs button { flex: 1 1 0; padding-inline: 8px; font-size: 11px; }
  .student-booking-option { grid-template-columns: 1fr; }
  .student-booking-option .mini-btn { width: 100%; }
  .schedule-slots { grid-template-columns: 1fr; }
  .modal-actions { align-items: stretch; flex-direction: column; }
  .modal-actions > * { width: 100%; }
}

@media (max-width: 520px) {
  .panel { padding: 14px; }

  .theme-choice-grid { grid-template-columns: 1fr; }

  .theme-choice-copy small { max-width: 220px; }

  .settings-actions > * { flex: 1 1 160px; }

  .settings-preview-card { padding: 14px; border-radius: 16px; }

  .settings-preview-stats { grid-template-columns: 1fr; }

  .kpi {
    min-height: 88px;
    padding: 12px;
  }

  .kpi strong,
  .mini-stat strong {
    font-size: clamp(19px, 5.3vw, 24px);
  }

  .day-command h2,
  .booking-hero h1,
  .report-hero h2 {
    font-size: 32px;
  }

  .panel-head .soft-btn,
  .panel-head .primary-btn {
    min-height: 36px;
    padding-inline: 10px;
  }

  .class-main {
    grid-template-columns: 1fr;
  }

  .class-time {
    width: fit-content;
    min-width: 72px;
  }

  .login-box {
    align-self: end;
    border-radius: 16px 16px 0 0;
  }

  .booking-wall {
    padding: 10px 10px calc(18px + env(safe-area-inset-bottom));
  }

  .booking-tabs { width: 100%; }
  .booking-tabs button { flex: 1; padding-inline: 8px; }
}

@media (max-width: 980px) {
  .class-row .actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; gap: 7px; }
  .class-row .actions > * { width: 100%; min-width: 0; }
  .student-booking-board { min-width: 0; }
}

@media (max-width: 520px) {
  .student-slot-filters { grid-template-columns: 1fr; }
  .class-row .actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .student-booking-board .panel-head { align-items: flex-start; }
  .booking-hero { padding: 18px; }
  .booking-logo { width: 68px; height: 68px; }
}

@media (min-width: 981px) {
  .student-pane > .student-booking-board { grid-column: auto; }
}