/* MathPro Tutors — Skyline Modern design system */
:root {
  --sky-surface: #f9f9ff;
  --sky-surface-low: #f1f3fc;
  --sky-surface-container: #ebedf7;
  --sky-surface-high: #e6e8f1;
  --sky-panel: #ffffff;
  --sky-text: #181c22;
  --sky-muted: #5d6472;
  --sky-outline: #c1c6d5;
  --sky-primary: #005ab4;
  --sky-primary-bright: #0a73e0;
  --sky-primary-soft: #d6e3ff;
  --sky-secondary: #465f88;
  --sky-orange: #bd5700;
  --sky-danger: #ba1a1a;
  --sky-shadow: 0 14px 36px rgba(36, 52, 78, .08);
}

html { scroll-behavior: smooth; }
body {
  background: var(--sky-surface);
  color: var(--sky-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { text-underline-offset: 3px; }
.container { width: min(1220px, calc(100% - 40px)); }
.site-header {
  position: sticky;
  top: 0;
  background: rgba(249, 249, 255, .96);
  border-bottom: 1px solid #e4e7f0;
  box-shadow: 0 3px 14px rgba(31, 45, 70, .04);
  backdrop-filter: blur(14px);
}
.header-inner { min-height: 66px; }
.brand { color: var(--sky-primary); font-weight: 800; letter-spacing: -.025em; }
.brand-mark { background: var(--sky-primary); border-radius: 10px; box-shadow: none; }
.header-nav a { border-radius: 8px; color: #343b48; font-weight: 650; }
.header-nav a:hover, .header-nav a:focus-visible { color: var(--sky-primary); background: #edf3ff; }
.header-nav .nav-cta { background: var(--sky-primary); color: #fff; border: 1px solid var(--sky-primary); }
.site-footer { background: #fff; border-top-color: #e0e4ed; }
.button { border-radius: 9px; }
.button-primary { background: var(--sky-primary); border-color: var(--sky-primary); color: #fff; }
.button-primary:hover { background: #004b98; border-color: #004b98; }
.button-secondary { color: var(--sky-primary); border-color: #aeb6c6; background: #fff; }

/* Existing functional homepage, re-skinned to Skyline Modern. */
.mp-homepage { background: var(--sky-surface); }
.mp-homepage .mpt-site-header { background: rgba(249, 249, 255, .96); border-bottom: 1px solid #e3e6ef; }
.mp-homepage .mpt-site-header .brand,
.mp-homepage .mpt-site-header .mpt-header-nav > a { color: var(--sky-text); }
.mp-homepage .mpt-site-header .brand strong { color: var(--sky-primary); }
.mp-homepage .mpt-brand-copy small { color: #6a7180; }
.mp-homepage .mpt-site-header .mpt-header-nav > a:hover { color: var(--sky-primary); background: #edf3ff; }
.mp-homepage .mpt-site-header .mpt-login-link { color: var(--sky-primary) !important; border-color: #aeb6c6 !important; background: transparent !important; }
.mp-homepage .mpt-site-header .mpt-register-link { background: var(--sky-primary) !important; border-color: var(--sky-primary) !important; color: #fff !important; }
.mp-homepage .mpt-nav-toggle span { background: var(--sky-primary); }
.mp-homepage .mpt-hero {
  color: var(--sky-text);
  background: radial-gradient(circle at 85% 18%, rgba(10, 115, 224, .14), transparent 31%), linear-gradient(145deg, #f9f9ff 0%, #edf3ff 100%);
  border-bottom: 1px solid #dce3ef;
}
.mp-homepage .mpt-grid-pattern { opacity: .36; background-image: linear-gradient(rgba(0, 90, 180, .08) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 90, 180, .08) 1px, transparent 1px); }
.mp-homepage .mpt-badge, .mp-homepage .mpt-kicker, .mp-homepage .mpt-section-heading > span { color: var(--sky-primary); background: var(--sky-primary-soft); border-color: #bed0f3; }
.mp-homepage .mpt-hero-copy h1 { color: var(--sky-text); }
.mp-homepage .mpt-hero-copy h1 em { color: var(--sky-primary); }
.mp-homepage .mpt-hero-copy > p, .mp-homepage .mpt-check-list { color: #4f5765; }
.mp-homepage .mpt-check-list li::before { color: var(--sky-primary); background: var(--sky-primary-soft); }
.mp-homepage .mpt-button-amber, .mp-homepage .mpt-button-blue { color: #fff; background: var(--sky-primary); border-color: var(--sky-primary); box-shadow: 0 9px 24px rgba(0, 90, 180, .18); }
.mp-homepage .mpt-button-outline { color: var(--sky-primary); border-color: #9ca6b8; background: rgba(255, 255, 255, .72); }
.mp-homepage .mpt-search-card { border: 1px solid #cbd3e2; background: #fff; box-shadow: var(--sky-shadow); }
.mp-homepage .mpt-search-card h2, .mp-homepage .mpt-search-card p, .mp-homepage .mpt-search-card label, .mp-homepage .mpt-search-card small { color: var(--sky-text); }
.mp-homepage .mpt-search-card p, .mp-homepage .mpt-search-card small { color: var(--sky-muted); }
.mp-homepage .mpt-search-card select, .mp-homepage .mpt-search-card input { background: #f7f8fd; border-color: #c5cad8; color: var(--sky-text); }
.mp-homepage .mpt-trust-strip { color: #313846; background: #fff; border-color: #e1e5ed; }
.mp-homepage .mpt-trust-strip b { color: var(--sky-primary); }
.mp-homepage .mpt-tutor-card, .mp-homepage .mpt-step-grid li, .mp-homepage .mpt-role-grid article { border-color: #cdd3df; border-radius: 16px; box-shadow: 0 8px 26px rgba(36, 52, 78, .05); }
.mp-homepage .mpt-approved, .mp-homepage .mpt-tag-list span { color: #00458d; background: var(--sky-primary-soft); }
.mp-homepage .mpt-profile-link, .mp-homepage .mpt-text-link { color: var(--sky-primary); }
.mp-homepage .mpt-learning { background: linear-gradient(140deg, #edf3ff, #f9f9ff); color: var(--sky-text); }
.mp-homepage .mpt-learning-copy p, .mp-homepage .mpt-learning-copy small { color: var(--sky-muted); }
.mp-homepage .mpt-platform-preview { background: #fff; color: var(--sky-text); border: 1px solid #cbd4e3; box-shadow: var(--sky-shadow); }
.mp-homepage .mpt-preview-top, .mp-homepage .mpt-preview-class, .mp-homepage .mpt-preview-progress, .mp-homepage .mpt-preview-tools > div { border-color: #dce1ea; background: #f7f8fd; }
.mp-homepage .mpt-preview-icon, .mp-homepage .mpt-preview-tools b { color: var(--sky-primary); background: var(--sky-primary-soft); }
.mp-homepage progress { accent-color: var(--sky-primary); }
.mp-homepage .mpt-role-grid article:nth-child(2) { background: #edf3ff; color: var(--sky-text); }
.mp-homepage .mpt-role-grid article:nth-child(2) p { color: var(--sky-muted); }
.mp-homepage .mpt-subject-list a { border-color: #cdd3df; background: #fff; }
.mp-homepage .mpt-subject-list a > span { background: var(--sky-primary-soft); color: var(--sky-primary); }
.mp-homepage .mpt-final-cta { background: linear-gradient(115deg, #004d9c, #0a73e0); }

/* Public About screen. */
.sky-public-page { background: var(--sky-surface); }
.sky-about-hero { padding: 70px 0 48px; }
.sky-about-hero-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(440px, 1.05fr); align-items: center; gap: 54px; }
.sky-about-copy h1 { max-width: 680px; margin: 14px 0 18px; font-size: clamp(2.2rem, 4.2vw, 4.1rem); line-height: 1.04; letter-spacing: -.052em; }
.sky-about-copy p { max-width: 650px; color: var(--sky-muted); font-size: 1.08rem; line-height: 1.72; }
.sky-kicker { display: inline-flex; width: max-content; color: var(--sky-primary); font-size: .75rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.sky-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 25px; }
.sky-actions .button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; padding: 10px 18px; text-decoration: none; font-weight: 750; }
.sky-math-visual { overflow: hidden; min-height: 390px; border: 1px solid #bfc7d7; border-radius: 20px; background: #fff; box-shadow: var(--sky-shadow); }
.sky-visual-toolbar { min-height: 58px; padding: 12px 18px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; border-bottom: 1px solid #dfe3ec; background: #f3f5fb; }
.sky-visual-toolbar > span { display: flex; gap: 6px; }
.sky-visual-toolbar i { width: 9px; height: 9px; border-radius: 50%; background: #b7bdc9; }
.sky-visual-toolbar i:first-child { background: #e28369; }
.sky-visual-toolbar i:nth-child(2) { background: #e0aa47; }
.sky-visual-toolbar i:nth-child(3) { background: #5cae8f; }
.sky-visual-toolbar b { font-size: .78rem; }
.sky-visual-toolbar em { justify-self: end; color: #166c59; background: #dff4ed; border-radius: 999px; padding: 5px 9px; font-size: .68rem; font-style: normal; font-weight: 800; }
.sky-visual-board { position: relative; min-height: 330px; overflow: hidden; background: linear-gradient(rgba(0, 90, 180, .055) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 90, 180, .055) 1px, transparent 1px), #fbfcff; background-size: 28px 28px; }
.sky-equation { position: absolute; z-index: 2; color: #244b7d; padding: 8px 12px; border-radius: 9px; background: rgba(255, 255, 255, .9); box-shadow: 0 8px 22px rgba(43, 63, 91, .08); font-family: Georgia, serif; font-size: 1.06rem; }
.sky-equation-a { left: 7%; top: 12%; }
.sky-equation-b { right: 6%; top: 27%; }
.sky-coordinate-plane { position: absolute; left: 8%; bottom: 10%; width: 52%; height: 48%; border-left: 2px solid #8d98aa; border-bottom: 2px solid #8d98aa; }
.sky-coordinate-plane i:first-child { position: absolute; inset: 8% 4% 10% 7%; border-top: 3px solid var(--sky-primary); border-radius: 50% 50% 0 0; transform: skewY(-18deg); }
.sky-coordinate-plane i:nth-child(2) { position: absolute; width: 8px; height: 8px; border-radius: 50%; right: 22%; top: 23%; background: var(--sky-orange); box-shadow: 0 0 0 6px rgba(189, 87, 0, .13); }
.sky-lesson-card { position: absolute; right: 5%; bottom: 8%; width: 34%; padding: 15px; border: 1px solid #cbd3e2; border-radius: 14px; background: rgba(255, 255, 255, .96); box-shadow: 0 12px 28px rgba(35, 51, 75, .1); }
.sky-lesson-card span, .sky-lesson-card strong { display: block; }
.sky-lesson-card span { color: var(--sky-muted); font-size: .7rem; }
.sky-lesson-card strong { margin: 3px 0 10px; color: var(--sky-primary); }
.sky-lesson-card progress { width: 100%; height: 8px; accent-color: var(--sky-primary); }
.sky-section { padding: 54px 0; }
.sky-section-heading { max-width: 720px; margin: 0 auto 28px; text-align: center; }
.sky-section-heading > span { color: var(--sky-primary); font-size: .73rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.sky-section-heading h2 { margin: 8px 0; font-size: clamp(1.75rem, 3vw, 2.45rem); letter-spacing: -.035em; }
.sky-section-heading p { color: var(--sky-muted); line-height: 1.65; }
.sky-directive-grid, .sky-role-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.sky-directive-grid article, .sky-role-grid article { border: 1px solid var(--sky-outline); border-radius: 16px; background: var(--sky-surface-low); padding: 24px; }
.sky-feature-icon { width: 42px; height: 42px; display: grid; place-items: center; color: var(--sky-primary); background: var(--sky-primary-soft); border-radius: 12px; font-size: 1.25rem; font-weight: 850; }
.sky-directive-grid h3, .sky-role-grid h3 { margin: 16px 0 7px; font-size: 1.18rem; }
.sky-directive-grid p, .sky-role-grid p { margin: 0; color: var(--sky-muted); font-size: .88rem; line-height: 1.62; }
.sky-role-section { background: #f1f3fc; border-block: 1px solid #e0e4ed; }
.sky-role-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.sky-role-grid article { background: #fff; }
.sky-role-grid article > span { color: var(--sky-primary); font-weight: 850; font-size: .75rem; }
.sky-role-grid a { display: inline-block; margin-top: 18px; color: var(--sky-primary); font-size: .78rem; font-weight: 800; text-decoration: none; }
.sky-about-cta { padding-top: 34px; padding-bottom: 72px; }
.sky-about-cta > .container { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 34px; border: 1px solid var(--sky-outline); border-radius: 20px; background: var(--sky-surface-high); }
.sky-about-cta h2 { margin: 6px 0; font-size: clamp(1.55rem, 2.6vw, 2.2rem); }
.sky-about-cta p { max-width: 720px; margin: 0; color: var(--sky-muted); }
.sky-about-cta .sky-actions { margin: 0; flex: 0 0 auto; }

/* Public tutor directory. */
.sky-directory-layout { width: min(1540px, 100%); min-height: calc(100vh - 66px); margin: 0 auto; display: grid; grid-template-columns: 350px minmax(0, 1fr); background: var(--sky-surface); }
.sky-directory-filters { padding: 40px 30px; border-right: 1px solid var(--sky-outline); background: #fff; }
.sky-filter-heading h1 { margin: 8px 0 6px; font-size: 2.2rem; letter-spacing: -.04em; }
.sky-filter-heading p { margin: 0 0 28px; color: var(--sky-muted); line-height: 1.55; }
.sky-directory-filters form { display: grid; gap: 10px; }
.sky-directory-filters label { margin-top: 8px; font-size: .77rem; font-weight: 800; }
.sky-directory-filters input, .sky-directory-filters select { width: 100%; min-height: 48px; border: 1px solid #bdc5d5; border-radius: 10px; padding: 10px 12px; background: #f7f8fd; color: var(--sky-text); font: inherit; }
.sky-search-input { position: relative; }
.sky-search-input span { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: #70798a; font-size: 1.35rem; }
.sky-search-input input { padding-left: 43px; }
.sky-directory-filters .button { width: 100%; min-height: 46px; margin-top: 8px; text-align: center; text-decoration: none; font-weight: 760; }
.sky-filter-note { display: grid; gap: 4px; margin-top: 30px; padding: 15px; border: 1px solid #cbd6e7; border-radius: 13px; background: #edf3ff; }
.sky-filter-note strong { color: #00458d; font-size: .78rem; }
.sky-filter-note span { color: var(--sky-muted); font-size: .7rem; line-height: 1.5; }
.sky-directory-results { min-width: 0; padding: 40px clamp(22px, 3.5vw, 56px) 60px; }
.sky-directory-toolbar { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 24px; }
.sky-directory-toolbar h2 { margin: 5px 0 2px; font-size: clamp(1.55rem, 3vw, 2.25rem); letter-spacing: -.035em; }
.sky-directory-toolbar p { margin: 0; color: var(--sky-muted); font-size: .83rem; }
.sky-directory-toolbar > a { color: var(--sky-primary); font-size: .8rem; font-weight: 800; text-decoration: none; white-space: nowrap; }
.sky-directory-grid { display: grid; grid-template-columns: repeat(3, minmax(250px, 1fr)); gap: 18px; }
.sky-directory-card { display: flex; flex-direction: column; min-height: 390px; padding: 20px; border: 1px solid var(--sky-outline); border-radius: 17px; background: #fff; box-shadow: 0 9px 26px rgba(36, 52, 78, .045); }
.sky-directory-card > header { display: grid; grid-template-columns: 54px minmax(0, 1fr) auto; align-items: start; gap: 12px; }
.sky-directory-avatar { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: linear-gradient(145deg, var(--sky-primary), var(--sky-primary-bright)); font-size: 1.2rem; font-weight: 850; }
.sky-directory-card h3 { margin: 2px 0 2px; font-size: 1.04rem; }
.sky-directory-card header p { margin: 0; color: var(--sky-primary); font-size: .76rem; line-height: 1.4; }
.sky-approved-chip { color: #166c59; background: #dff4ed; border-radius: 999px; padding: 5px 7px; font-size: .58rem; font-weight: 850; }
.sky-card-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 20px 0 14px; }
.sky-card-facts span { padding: 10px; border-radius: 10px; background: #f3f5fb; color: var(--sky-muted); font-size: .65rem; line-height: 1.35; }
.sky-card-facts b { display: block; color: var(--sky-text); font-size: 1rem; }
.sky-directory-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.sky-directory-tags span { color: #00458d; background: var(--sky-primary-soft); border-radius: 999px; padding: 5px 9px; font-size: .66rem; }
.sky-grade-line { margin: 15px 0 18px; color: var(--sky-muted); font-size: .72rem; line-height: 1.5; }
.sky-grade-line strong { color: var(--sky-text); }
.sky-directory-card > .button { margin-top: auto; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; text-decoration: none; font-size: .78rem; font-weight: 780; }
.sky-directory-empty { min-height: 440px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border: 1px dashed #b9c2d2; border-radius: 18px; background: #fff; padding: 40px; }
.sky-directory-empty > span { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 16px; color: var(--sky-primary); background: var(--sky-primary-soft); font-size: 1.6rem; }
.sky-directory-empty h2 { margin: 16px 0 4px; }
.sky-directory-empty p { max-width: 540px; color: var(--sky-muted); }

/* Portal frame: dashboard views own the full viewport. */
.mp-portal-dashboard { overflow-x: hidden; background: #f7f8ff; }
.mp-portal-dashboard #main-content { min-height: 100vh; }

/* Student and parent portal. */
.student-dashboard-shell {
  --student-ink: var(--sky-text);
  --student-muted: var(--sky-muted);
  --student-line: var(--sky-outline);
  --student-primary: var(--sky-primary);
  --student-primary-dark: #00458d;
  --student-soft: var(--sky-primary-soft);
  grid-template-columns: 286px minmax(0, 1fr);
  min-height: 100vh;
  background: #f7f8ff;
}
.student-sidebar { top: 0; height: 100vh; padding: 22px 18px; border-color: #d6dbe6; background: var(--sky-surface-low); box-shadow: none; }
.student-brand { display: flex; align-items: center; gap: 11px; padding: 0 3px 17px; color: var(--sky-primary); text-decoration: none; }
.student-brand > span { width: 39px; height: 39px; display: grid; place-items: center; border-radius: 50%; background: var(--sky-primary); color: #fff; font-size: 1.15rem; font-weight: 900; }
.student-brand > div { display: grid; }
.student-brand strong { font-size: 1.2rem; letter-spacing: -.03em; }
.student-brand small { color: #4a5261; font-size: .7rem; font-weight: 650; }
.student-profile-card { padding: 10px; border-color: #cdd3df; border-radius: 13px; background: rgba(255, 255, 255, .72); }
.student-avatar { border-radius: 50%; background: var(--sky-primary); box-shadow: none; }
.student-nav-list a, .student-nav-logout { border-radius: 10px; color: #293140; }
.student-nav-list a:hover, .student-nav-list a:focus-visible, .student-nav-logout:hover { color: var(--sky-primary); background: #e4ecfb; }
.student-nav-list a.is-active { color: #24466f; border-color: transparent; background: #b6d0ff; }
.student-sidebar-security { border-color: #cbd2df; background: rgba(255, 255, 255, .6); }
.student-dashboard-main { padding: 32px clamp(20px, 3.5vw, 54px) 48px; max-width: 1600px; }
.student-dashboard-hero { padding: 7px 0 24px; border: 0; border-radius: 0; background: transparent; color: var(--sky-text); box-shadow: none; overflow: visible; }
.student-dashboard-hero::after { display: none; }
.student-dashboard-hero .eyebrow { color: var(--sky-primary); }
.student-dashboard-hero h1 { color: var(--sky-text); font-size: clamp(2rem, 3.4vw, 2.9rem); }
.student-dashboard-hero p { color: var(--sky-muted); }
.student-hero-meta > span { color: #465060; background: #fff; border-color: #cbd1de; }
.student-hero-actions .button-quiet { color: var(--sky-primary); border-color: #b3bdcd; background: #fff; }
.student-summary-grid { gap: 14px; margin: 0 0 22px; }
.student-summary-card { min-height: 128px; border-color: var(--sky-outline); border-radius: 15px; box-shadow: none; }
.student-summary-card.is-featured { background: linear-gradient(145deg, #edf3ff, #fff); border-color: #b9c9e4; }
.summary-icon { color: var(--sky-primary); background: var(--sky-primary-soft); }
.student-panel { border-color: var(--sky-outline); border-radius: 16px; box-shadow: none; }
.panel-kicker, .text-link { color: var(--sky-primary); }
.student-class-card, .quick-action-list > a, .student-recording-card { border-color: #cbd1dd; }
.student-class-card.is-next { border-left: 4px solid var(--sky-primary); background: #f6f9ff; }
.student-class-date span { color: var(--sky-primary); }
.recording-thumbnail { background: radial-gradient(circle at 25% 25%, #63a4ed, #005ab4 58%, #00386f); }
.recording-progress span, .attendance-ring { background-color: var(--sky-primary); }
.progress-score-card { background: linear-gradient(145deg, #00458d, #0a73e0); }

/* Teacher portal. */
.teacher-dashboard-shell {
  --td-bg: #f7f8ff;
  --td-panel: #fff;
  --td-text: var(--sky-text);
  --td-muted: var(--sky-muted);
  --td-border: var(--sky-outline);
  --td-accent: var(--sky-primary);
  --td-accent-soft: var(--sky-primary-soft);
  grid-template-columns: 286px minmax(0, 1fr);
  min-height: 100vh;
  background: #f7f8ff;
}
.teacher-sidebar { top: 0; height: 100vh; padding: 22px 18px; background: var(--sky-surface-low); border-color: #d6dbe6; box-shadow: none; }
.teacher-brand { gap: 11px; padding: 0 3px 17px; color: var(--sky-primary); }
.teacher-brand > span { width: 39px; height: 39px; border-radius: 50%; background: var(--sky-primary); color: #fff; box-shadow: none; }
.teacher-brand > div { display: grid; }
.teacher-brand strong { font-size: 1.2rem; letter-spacing: -.03em; }
.teacher-brand small { color: #4a5261; font-size: .7rem; font-weight: 650; }
.teacher-profile-card { border-color: #cdd3df; background: rgba(255, 255, 255, .72); }
.teacher-avatar { border-radius: 50%; background: var(--sky-primary); box-shadow: none; }
.teacher-nav-list a, .teacher-nav-logout { color: #293140; border-radius: 10px; }
.teacher-nav-list a:hover, .teacher-nav-list a:focus-visible, .teacher-nav-logout:hover { color: var(--sky-primary); background: #e4ecfb; }
.teacher-nav-list a.is-active { color: #24466f; background: #b6d0ff; }
.teacher-sidebar-security { border-color: #cbd2df; background: rgba(255, 255, 255, .6); }
.teacher-dashboard-main { max-width: 1600px; padding: 32px clamp(20px, 3.5vw, 54px) 48px; }
.teacher-dashboard-hero { padding: 7px 0 24px; border: 0; border-radius: 0; background: transparent; color: var(--sky-text); box-shadow: none; overflow: visible; }
.teacher-dashboard-hero::after { display: none; }
.teacher-dashboard-hero .eyebrow { color: var(--sky-primary); }
.teacher-dashboard-hero h1 { color: var(--sky-text); font-size: clamp(2rem, 3.4vw, 2.9rem); }
.teacher-dashboard-hero p { color: var(--sky-muted); }
.teacher-hero-meta > span { color: #465060; background: #fff; border-color: #cbd1de; }
.teacher-hero-actions .button-quiet { color: var(--sky-primary); border-color: #b3bdcd; background: #fff; }
.teacher-summary-grid { margin-top: 0; gap: 14px; }
.teacher-summary-card { border-color: var(--sky-outline); border-radius: 15px; box-shadow: none; }
.teacher-summary-card.is-featured { background: linear-gradient(145deg, #edf3ff, #fff); border-color: #b9c9e4; }
.teacher-panel, .teacher-class-card, .teacher-task-card { border-color: var(--sky-outline); box-shadow: none; }
.teacher-panel { border-radius: 16px; }
.teacher-class-card { border-left: 4px solid var(--sky-primary); background: #fafbff; }
.teacher-class-time strong, .teacher-panel .panel-kicker, .teacher-panel .text-link { color: var(--sky-primary); }
.teacher-progress span { background: var(--sky-primary); }

/* Administrator portal. */
.admin-dashboard-shell {
  --ad-bg: #f7f8ff;
  --ad-panel: #fff;
  --ad-text: var(--sky-text);
  --ad-muted: var(--sky-muted);
  --ad-border: var(--sky-outline);
  --ad-accent: var(--sky-primary);
  --ad-accent-soft: var(--sky-primary-soft);
  grid-template-columns: 286px minmax(0, 1fr);
  background: #f7f8ff;
}
.admin-sidebar { padding: 22px 18px; color: var(--sky-text); background: var(--sky-surface-low); box-shadow: none; border-right: 1px solid #d6dbe6; }
.admin-brand { color: var(--sky-primary); }
.admin-brand > span { width: 39px; height: 39px; border-radius: 50%; color: #fff; background: var(--sky-primary); box-shadow: none; font-size: .9rem; }
.admin-brand strong { font-size: 1.2rem; letter-spacing: -.03em; }
.admin-brand small { color: #4a5261; }
.admin-identity-card { border-color: #cdd3df; background: rgba(255, 255, 255, .72); }
.admin-avatar { color: #fff; background: var(--sky-primary); }
.admin-identity-card span { color: var(--sky-muted); }
.admin-nav h2 { color: #737b8a; }
.admin-nav a, .admin-nav form button { color: #293140; }
.admin-nav a:hover, .admin-nav a:focus-visible, .admin-nav form button:hover { color: var(--sky-primary); background: #e4ecfb; }
.admin-nav a.is-active { color: #24466f; background: #b6d0ff; box-shadow: inset 3px 0 0 var(--sky-primary); }
.admin-nav b { color: #748094; }
.admin-sidebar-note { border-color: #cfd5df; }
.admin-sidebar-note span { color: var(--sky-muted); }
.admin-dashboard-main { max-width: 1680px; padding: 32px clamp(20px, 3.5vw, 54px) 48px; }
.admin-dashboard-hero { padding: 7px 0 24px; border: 0; border-radius: 0; background: transparent; box-shadow: none; overflow: visible; }
.admin-dashboard-hero::after { display: none; }
.admin-dashboard-hero h1 { font-size: clamp(2.2rem, 3.8vw, 3.25rem); letter-spacing: -.045em; }
.admin-hero-meta span { border-color: #cbd1de; background: #fff; }
.admin-metric-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 0; }
.admin-metric-card { min-height: 150px; border-color: var(--sky-outline); border-radius: 16px; box-shadow: none; }
.admin-metric-card::before { width: 100%; height: 4px; }
.admin-metric-card.tone-finance { color: #fff; background: linear-gradient(135deg, #005ab4, #0a73e0); border-color: transparent; }
.admin-metric-card.tone-finance span, .admin-metric-card.tone-finance small { color: #e2edff; }
.admin-chart-card, .admin-queue-card, .admin-panel { border-color: var(--sky-outline); border-radius: 16px; box-shadow: none; }
.admin-bar-column > span { background: linear-gradient(180deg, #3d8ee7, #005ab4); }
.admin-quick-actions { background: linear-gradient(130deg, #00458d, #0a73e0); }

/* Responsive behavior. */
@media (max-width: 1180px) {
  .sky-directory-grid { grid-template-columns: repeat(2, minmax(240px, 1fr)); }
  .sky-role-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1050px) {
  .student-dashboard-shell, .teacher-dashboard-shell, .admin-dashboard-shell { display: block; grid-template-columns: 1fr; }
  .student-sidebar, .teacher-sidebar, .admin-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(330px, 88vw);
    height: 100vh;
    transform: translateX(-105%);
    transition: transform .24s ease;
    z-index: 70;
  }
  .student-sidebar.is-open, .teacher-sidebar.is-open, .admin-sidebar.is-open { transform: translateX(0); }
  .student-mobile-nav-toggle, .teacher-mobile-nav-toggle, .admin-mobile-nav-toggle { display: flex; }
}

@media (max-width: 960px) {
  .sky-about-hero { padding-top: 44px; }
  .sky-about-hero-grid { grid-template-columns: 1fr; }
  .sky-math-visual { min-height: 350px; }
  .sky-directory-layout { grid-template-columns: 1fr; }
  .sky-directory-filters { border-right: 0; border-bottom: 1px solid var(--sky-outline); }
  .sky-directory-filters form { grid-template-columns: 1fr; }
  .sky-filter-note { display: none; }
  .admin-dashboard-main, .student-dashboard-main, .teacher-dashboard-main { padding-top: 24px; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, 1220px); }
  .sky-about-copy h1 { font-size: clamp(2rem, 11vw, 3rem); }
  .sky-directive-grid, .sky-role-grid, .sky-directory-grid { grid-template-columns: 1fr; }
  .sky-about-cta > .container, .sky-directory-toolbar { align-items: flex-start; flex-direction: column; }
  .sky-about-cta .sky-actions { margin-top: 8px; }
  .sky-directory-filters { padding: 30px 20px; }
  .sky-directory-filters form { grid-template-columns: 1fr; }
  .sky-directory-filters form .sky-search-input { grid-column: auto; }
  .sky-directory-results { padding: 30px 18px 48px; }
  .sky-math-visual { min-height: 315px; }
  .sky-visual-board { min-height: 260px; }
  .sky-equation { font-size: .83rem; }
  .sky-lesson-card { width: 42%; }
  .admin-metric-grid { grid-template-columns: 1fr; }
  .admin-dashboard-hero h1, .student-dashboard-hero h1, .teacher-dashboard-hero h1 { font-size: 2rem; }
}

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

.student-dashboard-shell.high-contrast,
.teacher-dashboard-shell.high-contrast,
.admin-dashboard-shell.high-contrast { --sky-outline: #000; }