:root {
  --school-blue: #107ec6;
  --school-blue-deep: #3b5998;
  --brand-primary: #0f75b9;
  --brand-primary-hover: #0d70b1;
  --brand-primary-active: #0b659f;
  --brand-secondary: #3b5998;
  --brand-50: #f3f9fd;
  --brand-100: #e5f3fb;
  --brand-200: #c8e7f7;
  --background: #f7fafc;
  --surface: #ffffff;
  --surface-subtle: #f9fbfd;
  --border: #dce4ea;
  --border-subtle: #e9eef2;
  --text-primary: #17212b;
  --text-secondary: #53616e;
  --text-muted: #74818e;
  --success: #15805d;
  --success-bg: #edfaf4;
  --warning: #a86b00;
  --warning-bg: #fff8e6;
  --danger: #ba3737;
  --danger-bg: #fff4f4;
  --info: #107ec6;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-float: 0 12px 32px rgb(23 33 43 / 12%);
  --shadow-dialog: 0 24px 64px rgb(23 33 43 / 18%);
  --ease-standard: cubic-bezier(.2, .75, .3, 1);
  --duration-fast: 120ms;
  --duration-base: 180ms;
  --sidebar-width: 236px;
  color: var(--text-primary);
  background: var(--background);
  font-family: "Be Vietnam Pro", ui-sans-serif, system-ui, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--background); }
body { min-width: 320px; min-height: 100dvh; margin: 0; background: var(--background); font-size: 15px; line-height: 1.58; }
button, input, select { font: inherit; }
button, a { touch-action: manipulation; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .58; }
a { color: var(--brand-primary); text-underline-offset: 3px; }
p { margin: 0; }
h1, h2, h3 { margin: 0; color: var(--text-primary); font-weight: 600; letter-spacing: -.025em; }
h1 { font-size: clamp(1.82rem, 4.2vw, 2.65rem); line-height: 1.18; }
h2 { font-size: 1.22rem; line-height: 1.3; }
h3 { font-size: 1rem; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }

.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 9px 12px; color: var(--text-primary); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: var(--shadow-float); transform: translateY(-160%); transition: transform var(--duration-base) var(--ease-standard); }
.skip-link:focus { transform: translateY(0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

:focus-visible { outline: 3px solid rgb(16 126 198 / 40%); outline-offset: 3px; }

.startup-screen, .auth-screen { display: grid; min-height: 100dvh; padding: 24px; place-items: center; }
.startup-screen { gap: 12px; color: var(--text-secondary); }
.startup-mark { display: grid; width: min(528px, calc(100vw - 48px)); aspect-ratio: 11 / 9; place-items: center; color: var(--school-blue); animation: startup-pulse 2.4s ease-in-out infinite; }
.startup-mark .brand-logo { width: 100%; height: 100%; }
@keyframes startup-pulse { 50% { opacity: .82; transform: scale(.975); } }

.auth-screen { position: relative; overflow: hidden; background: var(--surface); }
.auth-screen::before { position: absolute; z-index: 0; inset: 0; content: ""; background: radial-gradient(circle at 12% 10%, rgb(16 126 198 / 11%), transparent 34%), radial-gradient(circle at 89% 93%, rgb(59 89 152 / 10%), transparent 30%); }
.auth-panel { position: relative; display: grid; z-index: 1; grid-template-columns: minmax(280px, 528px) minmax(0, 420px); gap: clamp(32px, 6vw, 96px); align-items: center; width: min(1120px, 100%); }
.auth-art { position: relative; display: grid; width: clamp(264px, 37vw, 528px); aspect-ratio: 1; place-items: center; border-radius: 38% 62% 55% 45% / 46% 40% 60% 54%; background: linear-gradient(135deg, var(--school-blue), var(--school-blue-deep)); box-shadow: 0 20px 60px rgb(16 126 198 / 22%); animation: auth-art-float 7.2s var(--ease-standard) infinite; will-change: transform; }
.auth-art::after { position: absolute; width: 72%; height: 72%; content: ""; border: 1px solid rgb(255 255 255 / 38%); border-radius: inherit; }
.auth-mark { z-index: 1; width: clamp(96px, 12vw, 160px); height: clamp(96px, 12vw, 160px); padding: clamp(12px, 1.4vw, 20px); color: var(--school-blue-deep); background: white; border-radius: clamp(24px, 3vw, 38px); animation: auth-mark-float 5.6s var(--ease-standard) infinite; box-shadow: 0 12px 24px rgb(23 33 43 / 13%); will-change: transform; }
.auth-mark .brand-mark { width: 100%; height: 100%; color: inherit; background: transparent; border-radius: 0; }
.auth-orbit { position: absolute; border: 1px solid rgb(16 126 198 / 22%); border-radius: 999px; will-change: transform; }
.orbit-one { width: 116%; height: 48%; animation: auth-orbit-one 9s linear infinite; }
.orbit-two { width: 85%; height: 130%; animation: auth-orbit-two 12s linear infinite; }
.auth-copy { max-width: 420px; animation: auth-copy-enter 420ms var(--ease-standard) both; }
.auth-copy h1 { margin-top: 2px; font-size: clamp(2.25rem, 6vw, 3.35rem); }
.auth-copy > p:not(.eyebrow):not(.auth-note) { margin: 12px 0 28px; color: var(--text-secondary); font-size: clamp(1.12rem, 2vw, 1.28rem); line-height: 1.55; }
.auth-note { margin-top: 14px; color: var(--text-muted); font-size: .8rem; }
.google-button { width: 100%; gap: 12px; transition: color var(--duration-fast) var(--ease-standard), background var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard), opacity var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard); }
.google-button:hover:not(:disabled) { box-shadow: 0 8px 18px rgb(15 117 185 / 22%); transform: translateY(-1px); }
.google-g { display: grid; width: 22px; height: 22px; place-items: center; color: #4285f4; background: white; border-radius: 50%; font-size: 13px; font-weight: 600; }
@keyframes auth-art-float { 0%, 100% { transform: translate3d(0, 0, 0) rotate(-1deg); } 50% { transform: translate3d(0, -10px, 0) rotate(1deg); } }
@keyframes auth-mark-float { 0%, 100% { transform: translate3d(0, 0, 0) rotate(-5deg); } 50% { transform: translate3d(0, -6px, 0) rotate(-2deg); } }
@keyframes auth-orbit-one { from { transform: rotate(-28deg) scale(1); } 50% { transform: rotate(-14deg) scale(1.025); } to { transform: rotate(-28deg) scale(1); } }
@keyframes auth-orbit-two { from { transform: rotate(38deg) scale(1); } 50% { transform: rotate(52deg) scale(.98); } to { transform: rotate(38deg) scale(1); } }
@keyframes auth-copy-enter { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }

.app-layout { display: grid; min-height: 100dvh; grid-template-columns: var(--sidebar-width) minmax(0, 1fr); }
.sidebar { position: sticky; top: 0; display: flex; height: 100dvh; padding: 22px 14px; flex-direction: column; background: var(--surface); border-right: 1px solid var(--border-subtle); }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text-primary); font-size: 1rem; font-weight: 600; letter-spacing: -.025em; text-decoration: none; }
.brand-link { width: max-content; }
.brand-mark { display: inline-flex; width: 42px; height: 34px; align-items: center; justify-content: center; color: var(--school-blue); flex: 0 0 auto; }
.brand-logo { display: block; object-fit: contain; object-position: center; }
.sidebar .brand-logo { width: 88px; height: 72px; }
.primary-nav { display: grid; gap: 4px; margin-top: 42px; }
.sidebar-bottom { display: grid; gap: 4px; margin-top: auto; }
.sidebar-copyright { margin: 12px 12px 0; color: var(--text-secondary); font-size: .8rem; letter-spacing: .015em; line-height: 1.4; }
.nav-link, .nav-button { display: inline-flex; min-height: 44px; padding: 10px 12px; align-items: center; gap: 12px; color: var(--text-secondary); background: transparent; border: 0; border-radius: 10px; font-size: .92rem; font-weight: 500; text-align: left; text-decoration: none; transition: color var(--duration-fast) var(--ease-standard), background var(--duration-fast) var(--ease-standard); }
.nav-link svg, .nav-button svg { width: 19px; height: 19px; }
.nav-link:hover, .nav-button:hover { color: var(--brand-primary); background: var(--brand-50); }
.nav-link.is-active { color: var(--brand-primary); background: var(--brand-50); font-weight: 600; }
.nav-button { width: 100%; }

.mobile-topbar, .bottom-nav { display: none; }
.main-content { width: min(1460px, 100%); padding: clamp(28px, 4vw, 52px); margin: 0 auto; overflow: hidden; }
.page-heading { display: grid; gap: 8px; max-width: 760px; margin-bottom: 30px; }
.page-heading > .muted { max-width: 65ch; }
.calendar-heading { max-width: none; grid-template-columns: minmax(0, 1fr) auto; align-items: end; }
.eyebrow { color: var(--brand-primary); font-size: .72rem; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; }
.muted, .page-heading > p:not(.eyebrow) { color: var(--text-secondary); }

.button { display: inline-flex; min-height: 42px; padding: 9px 14px; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: 10px; font-size: .9rem; font-weight: 600; line-height: 1.25; text-decoration: none; transition: color var(--duration-fast) var(--ease-standard), background var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard), opacity var(--duration-fast) var(--ease-standard); }
.button svg { width: 17px; height: 17px; }
.button-primary { color: #fff; background: var(--brand-primary); border-color: var(--brand-primary); }
.button-primary:hover:not(:disabled) { background: var(--brand-primary-hover); border-color: var(--brand-primary-hover); }
.button-primary:active:not(:disabled) { background: var(--brand-primary-active); }
.button-secondary { color: var(--brand-primary); background: var(--surface); border-color: var(--border); }
.button-secondary:hover:not(:disabled) { background: var(--brand-50); border-color: var(--brand-200); }
.button-ghost { color: var(--text-secondary); background: transparent; border-color: transparent; }
.button-ghost:hover:not(:disabled) { color: var(--brand-primary); background: var(--brand-50); }
.button-danger { color: white; background: var(--danger); border-color: var(--danger); }
.button-danger:hover:not(:disabled) { background: #a52f2f; border-color: #a52f2f; }
.button-text { padding-inline: 4px; color: var(--danger); background: transparent; border-color: transparent; }
.button-text:hover:not(:disabled) { background: var(--danger-bg); }
.button-small { min-height: 36px; padding: 6px 10px; font-size: .84rem; }
.button.is-pending::before { width: 14px; height: 14px; content: ""; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .75s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.status-badge { display: inline-flex; min-height: 28px; padding: 4px 8px; align-items: center; gap: 6px; border-radius: 999px; font-size: .76rem; font-weight: 600; white-space: nowrap; }
.status-badge svg { width: 14px; height: 14px; }

.calendar-toolbar { display: flex; min-height: 64px; padding: 10px 12px; align-items: center; justify-content: space-between; gap: 16px; background: var(--surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); }
.select-field { position: relative; display: inline-flex; min-width: 220px; align-items: center; }
.select-field select { width: 100%; min-height: 40px; padding: 8px 36px 8px 12px; appearance: none; color: var(--text-primary); background: var(--surface); border: 1px solid var(--border); border-radius: 10px; font-size: .88rem; font-weight: 500; }
.select-field svg { position: absolute; right: 10px; width: 16px; pointer-events: none; }
.select-field select:hover { border-color: var(--brand-200); }
.toolbar-actions, .inline-actions, .form-actions, .dialog-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.toolbar-actions { justify-content: flex-end; }

.calendar-frame { margin-top: 20px; background: var(--surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); overflow: hidden; }
.calendar-controls { display: flex; min-height: 64px; padding: 12px 14px; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--border-subtle); }
.date-controls { display: flex; min-width: 0; align-items: center; gap: 4px; }
.date-controls strong { padding-left: 6px; overflow: hidden; font-size: .9rem; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.icon-button { display: inline-grid; width: 40px; height: 40px; padding: 0; place-items: center; color: var(--text-secondary); background: transparent; border: 1px solid transparent; border-radius: 9px; transition: color var(--duration-fast) var(--ease-standard), background var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard); }
.icon-button:hover { color: var(--brand-primary); background: var(--brand-50); border-color: var(--brand-100); }
.icon-button svg { width: 19px; height: 19px; }
.view-switch { display: inline-flex; padding: 3px; background: var(--surface-subtle); border: 1px solid var(--border-subtle); border-radius: 10px; }
.view-button { min-height: 32px; padding: 5px 10px; color: var(--text-secondary); background: transparent; border: 0; border-radius: 7px; font-size: .82rem; font-weight: 600; }
.view-button[aria-pressed="true"] { color: var(--brand-primary); background: var(--surface); box-shadow: 0 1px 2px rgb(23 33 43 / 8%); }
.cache-message { min-height: 20px; padding: 7px 16px 0; color: var(--text-muted); font-size: .78rem; }
.calendar-scroller { overflow-x: auto; overscroll-behavior-inline: contain; }
.week-calendar { min-width: 950px; }
.week-header, .week-body { display: grid; grid-template-columns: 62px repeat(7, minmax(120px, 1fr)); }
.week-header { border-bottom: 1px solid var(--border-subtle); }
.time-corner { min-height: 54px; border-right: 1px solid var(--border-subtle); }
.day-heading { display: grid; min-height: 54px; padding: 7px 8px; place-items: center; border-right: 1px solid var(--border-subtle); color: var(--text-secondary); font-size: .72rem; text-align: center; }
.day-heading strong { display: grid; width: 27px; height: 27px; margin-top: 1px; place-items: center; color: var(--text-primary); border-radius: 999px; font-size: .87rem; }
.day-heading.is-today strong { color: white; background: var(--brand-primary); }
.week-body { min-height: 720px; }
.time-axis { display: grid; grid-template-rows: repeat(11, 1fr); padding-top: 0; color: var(--text-muted); border-right: 1px solid var(--border-subtle); font-size: .67rem; text-align: center; }
.time-axis span { height: 1px; transform: translateY(-8px); }
.day-column { position: relative; min-height: 720px; border-right: 1px solid var(--border-subtle); background-image: repeating-linear-gradient(to bottom, transparent 0, transparent calc(10% - 1px), var(--border-subtle) calc(10% - 1px), var(--border-subtle) 10%); }
.calendar-event { position: absolute; z-index: 2; top: var(--event-top); left: 4px; width: calc(100% - 8px); min-height: var(--event-height); padding: 5px 6px; overflow: hidden; color: #12374e; border: 0; border-left: 3px solid currentColor; border-radius: 5px; font-size: .68rem; line-height: 1.35; text-align: left; transition: filter var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard); }
.calendar-event:hover { filter: saturate(1.18); transform: translateY(-1px); }
.calendar-event strong, .calendar-event span { display: block; overflow: hidden; text-overflow: ellipsis; }
.calendar-event strong { display: -webkit-box; overflow-wrap: anywhere; font-weight: 600; line-clamp: 2; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.calendar-event span { white-space: nowrap; }
.calendar-event span { margin-top: 2px; opacity: .75; }
.tone-0 { color: #1576a7; background: #dff2fb; }
.tone-1 { color: #3d5f9f; background: #e7edfc; }
.tone-2 { color: #267b8f; background: #e0f3f5; }
.tone-3 { color: #46718f; background: #e8f0f7; }
.tone-4 { color: #176b88; background: #dff0f8; }
.tone-5 { color: #506899; background: #e9edf9; }
.calendar-empty, .calendar-placeholder { display: grid; min-height: 410px; padding: 42px 24px; place-items: center; align-content: center; gap: 12px; color: var(--text-secondary); text-align: center; }
.calendar-empty svg { width: 38px; height: 38px; color: var(--brand-primary); }
.calendar-empty p { max-width: 46ch; }

.four-week-calendar { display: grid; grid-template-columns: repeat(7, minmax(112px, 1fr)); min-width: 784px; border-top: 1px solid var(--border-subtle); }
.four-week-day-label { padding: 8px; color: var(--text-muted); border-right: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); font-size: .7rem; font-weight: 600; text-align: center; }
.four-week-day { display: flex; min-height: 124px; padding: 7px; flex-direction: column; gap: 3px; border-right: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.four-week-day > time { display: grid; width: 24px; height: 24px; margin-bottom: 2px; place-items: center; color: var(--text-secondary); border-radius: 50%; font-size: .72rem; font-weight: 600; }
.four-week-day.is-today > time { color: white; background: var(--brand-primary); }
.month-event { width: 100%; padding: 3px 4px; overflow: hidden; border: 0; border-radius: 4px; font-size: .64rem; line-height: 1.3; text-align: left; text-overflow: ellipsis; white-space: nowrap; }
.more-events { color: var(--text-secondary); font-size: .65rem; }

@media (min-width: 1024px) {
  .calendar-frame.calendar-frame-week, .calendar-frame.calendar-frame-fourWeek { display: flex; height: clamp(480px, calc(100dvh - 286px), 900px); flex-direction: column; }
  .calendar-frame.calendar-frame-week #calendarBoard, .calendar-frame.calendar-frame-fourWeek #calendarBoard { display: flex; min-height: 0; flex: 1 1 auto; }
  .calendar-frame-week #calendarBoard > .calendar-scroller { min-height: 0; flex: 1 1 auto; overflow: auto; }
  .calendar-frame-week .week-calendar { display: grid; height: 100%; min-height: 0; grid-template-rows: 54px minmax(0, 1fr); }
  .calendar-frame-week .week-header, .calendar-frame-week .week-body, .calendar-frame-week .day-column { min-height: 0; }
  .calendar-frame-fourWeek #calendarBoard { overflow: auto; }
  .calendar-frame-week #calendarBoard > .calendar-empty, .calendar-frame-week #calendarBoard > .calendar-placeholder, .calendar-frame-fourWeek #calendarBoard > .calendar-empty, .calendar-frame-fourWeek #calendarBoard > .calendar-placeholder { width: 100%; min-height: 0; flex: 1 1 auto; }
}

.settings-layout { display: grid; gap: 0; max-width: 820px; background: var(--surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); }
.settings-section { padding: clamp(20px, 4vw, 28px); border-bottom: 1px solid var(--border-subtle); }
.settings-section:last-child { border-bottom: 0; }
.section-heading { display: flex; margin-bottom: 12px; align-items: start; justify-content: space-between; gap: 16px; }
.section-heading .eyebrow { margin-bottom: 3px; }
.settings-section > p:not(.eyebrow), .form-intro { color: var(--text-secondary); }
.onboarding-section { background: linear-gradient(112deg, var(--brand-50), var(--surface) 72%); }
.step-kicker { display: inline-flex; margin-bottom: 12px; align-items: center; gap: 8px; color: var(--brand-primary); font-size: .8rem; font-weight: 600; }
.step-kicker span { display: grid; width: 22px; height: 22px; place-items: center; color: white; background: var(--brand-primary); border-radius: 50%; font-size: .74rem; }
.onboarding-section > h2 { margin-bottom: 8px; }
.check-list { display: grid; padding: 0; margin: 16px 0; gap: 7px; list-style: none; }
.check-list li { display: flex; align-items: start; gap: 8px; color: var(--text-secondary); }
.check-list svg { flex: 0 0 auto; width: 18px; color: var(--success); }
.consent-form { display: grid; gap: 14px; margin-top: 22px; }
.checkbox-label { display: flex; align-items: start; gap: 9px; color: var(--text-primary); font-size: .9rem; font-weight: 500; }
.checkbox-label input { width: 18px; height: 18px; margin: 3px 0 0; accent-color: var(--brand-primary); }
.credential-configured { display: grid; gap: 12px; }
.success-line { display: flex; align-items: center; gap: 6px; color: var(--success); font-size: .9rem; font-weight: 600; }
.success-line svg { width: 19px; height: 19px; }
.detail-row { display: grid; grid-template-columns: 112px minmax(0, 1fr); padding: 9px 0; border-bottom: 1px solid var(--border-subtle); }
.detail-row span { color: var(--text-muted); font-size: .84rem; }
.detail-row strong { overflow-wrap: anywhere; font-size: .9rem; font-weight: 500; }
.credential-editor { margin-top: 12px; }
.credential-editor form { display: grid; gap: 16px; max-width: 500px; margin-top: 18px; }
.field-group { display: grid; gap: 6px; }
.field-group > label, .field-group > span { color: var(--text-primary); font-size: .88rem; font-weight: 600; }
.field-group input, .select-field select { outline: none; }
.field-group input { min-height: 44px; width: 100%; padding: 10px 12px; color: var(--text-primary); background: var(--surface); border: 1px solid var(--border); border-radius: 9px; transition: border-color var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard); }
.field-group input:hover { border-color: #b5c6d2; }
.field-group input:focus, .select-field select:focus { border-color: var(--brand-primary); box-shadow: 0 0 0 3px rgb(16 126 198 / 14%); }
.password-input { position: relative; }
.password-input input { padding-right: 48px; }
.input-icon { position: absolute; top: 2px; right: 2px; }
.field-error { min-height: 1.2em; margin: 0; color: var(--danger); font-size: .79rem; }
.form-helper { color: var(--text-muted); font-size: .8rem; }
.error-summary { padding: 12px 14px; color: #922c2c; background: var(--danger-bg); border: 1px solid #f0b9b9; border-radius: var(--radius-sm); }
.error-summary h3 { color: inherit; font-size: .9rem; }
.error-summary ul { padding-left: 18px; margin: 5px 0 0; }
.error-summary a { color: inherit; }
.setting-row { display: flex; padding-top: 16px; align-items: center; justify-content: space-between; gap: 20px; }
.setting-row strong { display: block; margin-bottom: 2px; font-size: .92rem; }
.setting-row p { color: var(--text-muted); font-size: .84rem; }
.troubleshooting-section { background: var(--surface-subtle); }
.support-section { max-width: 750px; margin-bottom: 20px; background: var(--surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); }
.support-section h2 { margin-bottom: 8px; }
.support-section .inline-actions { margin-top: 16px; }
.support-note { margin-top: 12px; color: var(--text-muted); font-size: .84rem; }
.danger-zone { max-width: 750px; background: var(--danger-bg); border: 1px solid #f3c6c6; border-radius: var(--radius-md); }
.danger-zone .checkbox-label { margin: 18px 0; }

.prose-heading { max-width: 800px; }
.privacy-prose { display: grid; max-width: 800px; gap: 0; background: var(--surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); }
.privacy-prose section { padding: 24px 28px; border-bottom: 1px solid var(--border-subtle); }
.privacy-prose section:last-child { border-bottom: 0; }
.privacy-prose h2 { margin-bottom: 8px; }
.privacy-prose p, .privacy-prose li { color: var(--text-secondary); }
.privacy-prose ul { display: grid; padding-left: 20px; margin: 10px 0 0; gap: 6px; }
#privacyConsent { max-width: 800px; margin-top: 20px; }
#privacyConsent .onboarding-section { border: 1px solid var(--brand-200); border-radius: var(--radius-lg); }

.admin-heading { max-width: none; grid-template-columns: minmax(0, 1fr) auto; align-items: end; }
.admin-heading > div { display: grid; max-width: 760px; gap: 8px; }
.admin-metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.admin-metric, .admin-section { background: var(--surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); }
.admin-metric { display: grid; min-height: 138px; padding: 18px; align-content: start; gap: 5px; }
.admin-metric > p { color: var(--text-muted); font-size: .8rem; font-weight: 600; }
.admin-metric > strong { color: var(--text-primary); font-size: clamp(1.55rem, 3vw, 2.05rem); font-weight: 600; letter-spacing: -.04em; line-height: 1.15; }
.admin-metric > span { margin-top: auto; color: var(--text-secondary); font-size: .78rem; }
.admin-data-warning { display: flex; max-width: 1020px; padding: 13px 15px; align-items: center; gap: 9px; color: #7a4d00; background: var(--warning-bg); border: 1px solid #eed69f; border-radius: var(--radius-sm); font-size: .85rem; }
.admin-data-warning .inline-icon { display: grid; flex: 0 0 auto; color: var(--warning); }
.admin-data-warning .inline-icon svg { width: 19px; height: 19px; }
.admin-data-warning code { margin-left: auto; padding: 2px 5px; color: inherit; background: rgb(255 255 255 / 60%); border: 1px solid rgb(168 107 0 / 25%); border-radius: 4px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .7rem; }
.admin-section { display: grid; max-width: 1020px; padding: 22px; gap: 8px; margin-top: 18px; }
.admin-section > .muted { font-size: .84rem; }
.admin-detail-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 8px; border-top: 1px solid var(--border-subtle); }
.admin-detail { display: grid; min-height: 72px; padding: 12px 14px 10px 0; align-content: start; gap: 3px; border-bottom: 1px solid var(--border-subtle); }
.admin-detail:nth-child(3n + 2), .admin-detail:nth-child(3n + 3) { padding-left: 14px; border-left: 1px solid var(--border-subtle); }
.admin-detail span { color: var(--text-muted); font-size: .76rem; }
.admin-detail strong { color: var(--text-primary); font-size: .9rem; font-weight: 600; }
.admin-health-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 8px; }
.admin-health-item { display: flex; min-height: 78px; padding: 12px; align-items: start; gap: 9px; background: var(--surface-subtle); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); }
.admin-health-item .inline-icon { display: grid; width: 20px; height: 20px; flex: 0 0 auto; place-items: center; }
.admin-health-item .inline-icon svg { width: 18px; height: 18px; }
.admin-health-item > div { display: grid; gap: 2px; min-width: 0; }
.admin-health-item strong { color: var(--text-primary); font-size: .83rem; font-weight: 600; }
.admin-health-item span { overflow-wrap: anywhere; color: var(--text-muted); font-size: .74rem; }
.admin-health-item.is-ready .inline-icon { color: var(--success); }
.admin-health-item.is-attention .inline-icon { color: var(--warning); }
.admin-issue-list { display: grid; gap: 10px; margin-top: 10px; }
.admin-issue { display: grid; padding: 16px; gap: 10px; background: var(--surface-subtle); border: 1px solid var(--border-subtle); border-left: 4px solid var(--warning); border-radius: var(--radius-sm); }
.admin-issue-error { border-left-color: var(--danger); }
.admin-issue-heading { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.admin-user-ref { color: var(--text-muted); font-size: .71rem; font-weight: 600; letter-spacing: .06em; }
.admin-issue h3 { margin-top: 2px; font-size: 1rem; }
.admin-status-error { color: var(--danger); background: var(--danger-bg); }
.admin-status-warning { color: var(--warning); background: var(--warning-bg); }
.admin-issue .status-badge .inline-icon { display: inline-grid; }
.admin-issue .status-badge .inline-icon svg { width: 14px; height: 14px; }
.admin-issue-guidance { color: var(--text-secondary); font-size: .86rem; }
.admin-issue-meta { display: flex; flex-wrap: wrap; gap: 6px 12px; color: var(--text-muted); font-size: .76rem; }
.admin-issue-meta code { padding: 2px 5px; color: var(--text-secondary); background: var(--surface); border: 1px solid var(--border); border-radius: 4px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .7rem; }
.admin-empty-state { display: flex; padding: 14px; align-items: center; gap: 8px; color: var(--success); background: var(--success-bg); border-radius: var(--radius-sm); font-size: .88rem; font-weight: 500; }
.admin-empty-state .inline-icon svg { width: 19px; height: 19px; }
.admin-state-panel { max-width: 680px; }

.state-panel { display: grid; max-width: 590px; padding: clamp(30px, 6vw, 52px); align-content: start; gap: 12px; background: var(--surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); }
.state-panel > svg, .state-panel .inline-icon { color: var(--brand-primary); }
.state-panel .inline-icon svg { width: 38px; height: 38px; }
.state-panel p { color: var(--text-secondary); }
.state-error { border-color: #f0c0c0; }
.state-error .inline-icon { color: var(--danger); }
.gpa-panel { margin-top: 40px; }

.toast-region { position: fixed; z-index: 80; right: 18px; bottom: 18px; display: grid; width: min(390px, calc(100vw - 36px)); gap: 8px; pointer-events: none; }
.toast { display: flex; padding: 12px 14px; align-items: center; color: var(--text-primary); background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--info); border-radius: var(--radius-md); box-shadow: var(--shadow-float); font-size: .88rem; animation: toast-enter var(--duration-base) var(--ease-standard); }
.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--danger); }
@keyframes toast-enter { from { opacity: 0; transform: translateY(8px); } }

dialog { color: var(--text-primary); }
dialog::backdrop { background: rgb(23 33 43 / 38%); }
.event-dialog, .confirmation-dialog { width: min(540px, calc(100vw - 32px)); max-height: min(680px, calc(100dvh - 32px)); padding: 0; overflow: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-dialog); }
.event-dialog { padding: 24px; }
.confirmation-dialog form { padding: 24px; }
.dialog-heading { display: flex; align-items: start; justify-content: space-between; gap: 16px; }
.dialog-heading .eyebrow { margin-bottom: 3px; }
.dialog-heading form { padding: 0; }
.event-details { display: grid; grid-template-columns: 135px minmax(0, 1fr); margin: 22px 0 0; }
.event-details dt, .event-details dd { padding: 9px 0; border-bottom: 1px solid var(--border-subtle); }
.event-details dt { color: var(--text-muted); font-size: .84rem; }
.event-details dd { margin: 0; overflow-wrap: anywhere; font-weight: 500; }
.dialog-description { margin: 16px 0; color: var(--text-secondary); }
.confirmation-dialog .field-group { margin-bottom: 20px; }
.dialog-actions { justify-content: flex-end; }

@media (max-width: 1023px) {
  .app-layout { display: block; padding-bottom: 76px; }
  .sidebar { display: none; }
  .mobile-topbar { display: flex; min-height: 60px; padding: 10px clamp(16px, 4vw, 28px); align-items: center; justify-content: space-between; background: var(--surface); border-bottom: 1px solid var(--border-subtle); }
  .account-menu { position: relative; }
  .account-menu > summary { list-style: none; }
  .account-menu > summary::-webkit-details-marker { display: none; }
  .account-menu-popover { position: absolute; z-index: 25; top: calc(100% + 8px); right: 0; display: grid; min-width: 220px; padding: 10px; gap: 3px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow-float); }
  .account-menu-popover a, .account-menu-popover button { min-height: 40px; padding: 8px 9px; color: var(--text-secondary); background: transparent; border: 0; border-radius: 7px; font-size: .87rem; text-align: left; text-decoration: none; }
  .account-menu-popover a:hover, .account-menu-popover button:hover { color: var(--brand-primary); background: var(--brand-50); }
  .account-email { padding: 5px 9px 9px; overflow-wrap: anywhere; color: var(--text-muted); border-bottom: 1px solid var(--border-subtle); font-size: .76rem; }
  .bottom-nav { position: fixed; z-index: 30; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: repeat(2, 1fr); padding: 7px max(12px, env(safe-area-inset-left)) max(7px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-right)); background: rgb(255 255 255 / 96%); border-top: 1px solid var(--border); backdrop-filter: blur(10px); }
  .bottom-nav-link { display: grid; min-height: 52px; align-content: center; justify-items: center; gap: 3px; color: var(--text-secondary); border-radius: 10px; font-size: .69rem; font-weight: 500; text-decoration: none; }
  .bottom-nav-link svg { width: 19px; height: 19px; }
  .bottom-nav-link.is-active { color: var(--brand-primary); font-weight: 600; }
  .main-content { padding: clamp(24px, 5vw, 42px) clamp(16px, 4vw, 32px); }
  .admin-metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-health-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 899px) {
  .auth-panel { grid-template-columns: 1fr; gap: 34px; width: min(520px, 100%); }
  .auth-art { width: min(280px, 55vw); margin: 0 auto; }
  .auth-copy { margin: 0 auto; }
}

@media (max-width: 767px) {
  body { font-size: 16px; }
  .auth-panel { grid-template-columns: 1fr; gap: 34px; width: min(390px, 100%); }
  .auth-art { width: 154px; margin: 0 auto; }
  .auth-mark { width: 58px; height: 58px; padding: 15px; border-radius: 18px; }
  .auth-copy { text-align: center; }
  .auth-copy > p:not(.eyebrow):not(.auth-note) { font-size: 1.06rem; }
  .auth-note { font-size: .77rem; }
  .calendar-heading { grid-template-columns: 1fr; }
  .calendar-heading .status-badge { width: max-content; }
  .calendar-toolbar { align-items: stretch; flex-direction: column; }
  .select-field { width: 100%; min-width: 0; }
  .toolbar-actions { display: grid; grid-template-columns: 1fr; }
  .toolbar-actions .button { width: 100%; }
  .calendar-controls { align-items: stretch; flex-direction: column; }
  .date-controls { display: grid; grid-template-columns: 40px auto 40px minmax(0, 1fr); }
  .date-controls .button-small { padding-inline: 6px; }
  .view-switch { align-self: flex-end; }
  .calendar-frame { margin-inline: -4px; }
  .week-calendar { min-width: 862px; }
  .week-header, .week-body { grid-template-columns: 48px repeat(7, minmax(116px, 1fr)); }
  .time-axis { font-size: .61rem; }
  .settings-layout { margin-inline: -1px; }
  .settings-section { padding: 22px 18px; }
  .setting-row { align-items: stretch; flex-direction: column; }
  .setting-row .button { width: 100%; }
  .form-actions .button { flex: 1 1 160px; }
  .detail-row { grid-template-columns: 1fr; gap: 2px; }
  .privacy-prose section { padding: 22px 18px; }
  .admin-heading { grid-template-columns: 1fr; align-items: stretch; }
  .admin-heading .button { width: 100%; }
  .admin-data-warning { align-items: start; flex-wrap: wrap; }
  .admin-data-warning code { margin-left: 28px; }
  .admin-section { padding: 18px; }
  .admin-detail-grid { grid-template-columns: 1fr; }
  .admin-health-grid { grid-template-columns: 1fr; }
  .admin-detail, .admin-detail:nth-child(3n + 2), .admin-detail:nth-child(3n + 3) { min-height: auto; padding: 11px 0; border-left: 0; }
  .admin-issue-heading { align-items: stretch; flex-direction: column; }
  .admin-issue-heading .status-badge { width: max-content; }
  .event-details { grid-template-columns: 1fr; }
  .event-details dt { padding-bottom: 1px; border-bottom: 0; }
  .event-details dd { padding-top: 1px; }
  .dialog-actions { display: grid; grid-template-columns: 1fr; }
  .dialog-actions .button { width: 100%; }
}

@media (max-width: 430px) {
  .main-content { padding: 24px 16px; }
  .date-controls { grid-template-columns: 40px 1fr 40px; }
  .date-controls strong { grid-column: 1 / -1; padding: 5px 0 0; }
  .calendar-empty { min-height: 320px; }
  .admin-metric-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}