:root {
  --ink: #15233a;
  --muted: #5d6b7e;
  --paper: #ffffff;
  --canvas: #eef3f8;
  --blue: #1557a6;
  --blue-dark: #0d3f7d;
  --green: #198754;
  --line: #d8e1eb;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--canvas);
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background:
    radial-gradient(circle at top right, rgba(21, 87, 166, 0.12), transparent 34rem),
    var(--canvas);
}

.site-header,
.site-footer {
  padding: 1rem clamp(1rem, 4vw, 3rem);
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
}

.brand {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  width: 2.2rem;
  height: 2.2rem;
  display: grid;
  place-items: center;
  border-radius: 0.65rem;
  color: white;
  background: var(--blue);
}

main {
  display: grid;
  place-items: center;
  padding: clamp(1.25rem, 5vw, 4rem) 1rem;
}

.header-action { margin: 0; }
.header-nav { margin-left: auto; display: flex; gap: 1rem; }
.header-link { color: var(--blue); font-weight: 700; text-decoration: none; }
.wide-card { width: min(100%, 68rem); }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.account-list { display: grid; gap: .75rem; margin-top: 1.5rem; }
.account-row { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: .75rem; }
.account-row > div:first-child { display: grid; gap: .25rem; }
.account-row span { color: var(--muted); font-size: .9rem; }
.account-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.account-actions form { margin: 0; }
.account-actions button { padding: .5rem .7rem; border: 1px solid var(--line); border-radius: .5rem; background: white; cursor: pointer; }
.academic-admin { display: grid; gap: 2rem; }
.admin-section { border-top: 1px solid var(--line); padding-top: 1.5rem; }
.admin-section h2 { margin: 0 0 1rem; }
.inline-create, .management-row { display: grid; grid-template-columns: repeat(4, minmax(8rem, 1fr)) auto; gap: .75rem; align-items: end; }
.inline-create label, .management-row label { display: grid; gap: .3rem; color: var(--muted); font-size: .8rem; font-weight: 700; }
.inline-create input, .inline-create select, .management-row input { min-width: 0; padding: .65rem; border: 1px solid #aebdcd; border-radius: .5rem; background: white; font: inherit; color: var(--ink); }
.management-list { display: grid; gap: .75rem; margin-top: 1rem; }
.management-row { padding: .85rem; border: 1px solid var(--line); border-radius: .7rem; }
.management-row button { padding: .6rem .7rem; border: 1px solid var(--line); border-radius: .5rem; background: white; cursor: pointer; }
.record-context { grid-column: 1 / -1; color: var(--muted); font-size: .85rem; }
.status-pill { align-self: center; width: fit-content; padding: .25rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 800; text-transform: capitalize; }
.status-active { color: #0f5132; background: #d1e7dd; }
.status-archived { color: #5d6470; background: #e9ecef; }
.empty-state { color: var(--muted); }
.row-link { align-self: center; color: var(--blue); font-weight: 700; }
.institution-create, .institution-row { grid-template-columns: minmax(12rem, 2fr) minmax(8rem, 1fr) auto auto; }
.class-editor { display: grid; gap: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: .85rem; background: white; }
.class-create { background: #f9fbfd; }
.class-editor fieldset { min-width: 0; margin: 0; padding: 1rem; border-radius: .7rem; }
.class-editor legend { padding: 0 .4rem; font-weight: 800; }
.class-editor fieldset > p { margin: 0 0 .8rem; color: var(--muted); font-size: .88rem; }
.student-visible-fields { border: 1px solid #b8cce3; background: #f3f8fd; }
.admin-only-fields { border: 1px solid var(--line); background: #fbfcfe; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.admin-field-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.class-editor label { display: grid; gap: .3rem; color: var(--muted); font-size: .8rem; font-weight: 700; }
.class-editor label span { font-weight: 500; }
.class-editor input, .class-editor select { width: 100%; min-width: 0; padding: .65rem; border: 1px solid #aebdcd; border-radius: .5rem; background: white; color: var(--ink); font: inherit; }
.compact-fields { padding-block: .8rem !important; }
.class-card-heading { display: flex; align-items: center; gap: .55rem; }
.class-card-heading .record-context { grid-column: auto; font-weight: 700; }
.class-primary-actions { display: flex; justify-content: flex-end; gap: .6rem; }
.class-primary-actions button { padding: .6rem .8rem; border: 1px solid var(--line); border-radius: .5rem; background: white; cursor: pointer; }
.class-resource-actions { display: flex; gap: .75rem; padding-top: .1rem; }
.resource-button { display: inline-flex; align-items: center; justify-content: center; min-width: 8rem; padding: .68rem 1rem; border-radius: .6rem; color: white; font-weight: 800; text-decoration: none; box-shadow: 0 .35rem .8rem rgba(21,35,58,.12); }
.roster-button { background: linear-gradient(135deg, #164f91, #0a315f); }
.assignments-button { background: linear-gradient(135deg, #197346, #0b4428); }
.resource-button:hover { filter: brightness(1.08); }
.assessment-runner { width: min(100%, 58rem); display: grid; gap: 1.25rem; }
.runner-heading { display: flex; justify-content: space-between; gap: 1rem; }
.runner-heading > div:last-child { display: grid; align-content: start; text-align: right; color: var(--muted); }
.question-nav { display: flex; flex-wrap: wrap; gap: .5rem; }
.question-nav button { width: 2.5rem; height: 2.5rem; border: 1px solid var(--line); border-radius: 50%; background: white; }
.question-nav button.is-current { outline: 3px solid rgba(21,87,166,.25); border-color: var(--blue); }
.question-nav button.is-answered { color: white; background: var(--green); }
.assessment-question { min-height: 18rem; padding: 1.25rem; border: 1px solid var(--line); border-radius: .8rem; background: #fbfcfe; }
.assessment-question.is-hidden { display: none; }
.assessment-question fieldset { display: grid; gap: .75rem; border: 0; padding: 0; }
.answer-option { display: flex; gap: .7rem; padding: .85rem; border: 1px solid var(--line); border-radius: .65rem; background: white; }
.assessment-question input[type="text"] { width: 100%; padding: .8rem; border: 1px solid #aebdcd; border-radius: .55rem; font: inherit; }
.runner-actions { display: flex; justify-content: space-between; }
.final-submit { display: grid; justify-items: start; gap: .8rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.archived-section { margin-top: 1rem; border-top: 0; }
.archived-divider { height: 1px; margin-bottom: 1.5rem; background: var(--line); }
.archived-section h3 { margin: 1.5rem 0 .5rem; color: var(--muted); }
.archived-row { background: #f5f6f8; }
.action-slot { display: inline-grid; grid-template-columns: auto auto; justify-self: end; border: 1px solid #aebdcd; border-radius: .55rem; overflow: hidden; background: white; }
.action-slot select, .action-slot button { min-width: 0; padding: .62rem .7rem; border: 0; border-radius: 0; background: white; color: var(--ink); font: inherit; font-weight: 750; cursor: pointer; }
.action-slot select { max-width: 7.5rem; border-right: 1px solid var(--line); }
.action-slot button { min-width: 5rem; background: var(--blue); color: white; }
.roster-row, .activation-row { display: grid; gap: .35rem; padding: .8rem; border: 1px solid var(--line); border-radius: .6rem; }
.assignment-admin-list, .student-classes, .student-assignment-list { display: grid; gap: 1rem; }
.assignment-admin-card { display: grid; gap: .8rem; padding: 1rem; border: 1px solid var(--line); border-radius: .8rem; }
.assignment-admin-card label { display: grid; gap: .3rem; color: var(--muted); font-size: .8rem; font-weight: 700; }
.assignment-admin-card input, .assignment-admin-card textarea { width: 100%; padding: .65rem; border: 1px solid #aebdcd; border-radius: .5rem; font: inherit; }
.assignment-title-row, .assignment-fields, .student-class-heading { display: flex; gap: .75rem; align-items: end; }
.assignment-title-row label { flex: 1; }
.assignment-fields { display: grid; grid-template-columns: minmax(7rem, .6fr) repeat(2, minmax(13rem, 1fr)); }
.assignment-fields input { min-width: 0; }
.assignment-order-controls { display: flex; align-items: center; gap: .35rem; margin-left: auto; }
.assignment-order-controls span { color: var(--muted); font-size: .78rem; font-weight: 750; white-space: nowrap; }
.assignment-order-controls button { width: 2.25rem; height: 2.25rem; border: 1px solid #aebdcd; border-radius: .45rem; background: white; color: var(--blue-dark); font-size: 1.15rem; font-weight: 900; cursor: pointer; }
.assignment-order-controls button:disabled { color: #9aa5b1; background: #f1f3f5; cursor: default; }
.dashboard-card { width: min(100%, 68rem); }
.student-class { padding-top: 1.25rem; border-top: 1px solid var(--line); }
.student-class-heading { justify-content: space-between; align-items: start; margin-bottom: .8rem; }
.student-class-heading h2, .empty-state h2 { margin: 0; }
.student-class-heading > span { color: var(--muted); font-weight: 700; }
.student-assignment { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: .8rem; }
.student-assignment h3, .student-assignment p { margin: 0 0 .4rem; }
.student-assignment p { color: var(--muted); line-height: 1.45; }
.student-assignment dl { display: flex; gap: 1rem; margin: 0; }
.student-assignment dt { color: var(--muted); font-size: .72rem; font-weight: 800; text-transform: uppercase; }
.student-assignment dd { margin: .25rem 0 0; font-weight: 700; white-space: nowrap; }
.assignment-status { display: inline-block; padding: .25rem .5rem; border-radius: 999px; background: #e7eef8; color: var(--blue-dark); }
.status-late { background: #f8d7da; color: #842029; }
.status-not-open { background: #e9ecef; color: #5d6470; }
.status-key { color: var(--muted); font-size: .85rem; }
.roster-row { grid-template-columns: 1fr auto; }
.roster-preview { margin: 1rem 0; overflow-x: auto; }
.roster-preview table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.roster-preview th, .roster-preview td { padding: .65rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.preview-invalid { background: #fff4f4; }
.activation-row .token-link { margin: 0; }
.token-link { padding: 1rem; border-radius: .7rem; background: #f6f8fb; overflow-wrap: anywhere; user-select: all; }
.flash-success { color: #0f5132; border: 1px solid #a3cfbb; background: #d1e7dd; }
.text-button { border: 0; background: transparent; color: var(--blue); font: inherit; font-weight: 700; cursor: pointer; }
.flash { width: min(100%, 46rem); margin: 0 auto 1rem; padding: 0.85rem 1rem; border-radius: 0.7rem; }
.flash-error { color: #842029; border: 1px solid #f1aeb5; background: #f8d7da; }
.auth-card { max-width: 34rem; }
.auth-form { display: grid; gap: 0.7rem; }
.auth-form label { font-weight: 700; }
.auth-form input[type="text"], .auth-form input[type="password"], .auth-form input[type="email"], .auth-form select { width: 100%; padding: 0.8rem; border: 1px solid #aebdcd; border-radius: 0.6rem; color: var(--ink); background: white; font: inherit; }
.auth-form input:focus { outline: 3px solid rgba(21, 87, 166, 0.22); border-color: var(--blue); }
.check-row { display: flex; align-items: flex-start; gap: 0.65rem; margin: 0.45rem 0; font-weight: 500 !important; line-height: 1.4; }
.check-row input { width: 1.15rem; height: 1.15rem; margin-top: 0.1rem; }
.button-control { border: 0; cursor: pointer; font: inherit; }
.form-help { margin: 1.2rem 0 0; color: var(--muted); font-size: 0.9rem; line-height: 1.5; }
.request-account-link { margin-top: 1rem; background: white; color: var(--blue); border: 1px solid var(--blue); }
.stacked-form { display: grid; gap: 1rem; }
.stacked-form label { display: grid; gap: .4rem; font-weight: 700; }
.stacked-form label span { color: var(--muted); font-size: .9rem; font-weight: 500; }
.stacked-form input[type="file"] { padding: .85rem; border: 1px solid var(--line); border-radius: .65rem; background: #f8fafc; }
.stacked-form button, .button-link { display: inline-block; width: fit-content; padding: .7rem 1rem; border: 0; border-radius: .65rem; background: var(--blue); color: white; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.warning-panel, .form-error { margin: 1rem 0; padding: 1rem; border-radius: .7rem; }
.warning-panel { border: 1px solid #e3c66b; background: #fff9df; }
.form-error { border: 1px solid #f1aeb5; background: #f8d7da; color: #842029; }

.shell-card {
  width: min(100%, 46rem);
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: var(--paper);
  box-shadow: 0 1.25rem 3rem rgba(21, 35, 58, 0.09);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.lede {
  margin: 1.25rem 0 1.75rem;
  color: var(--muted);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  line-height: 1.65;
}

.status-panel {
  display: flex;
  gap: 0.8rem;
  padding: 1rem;
  border: 1px solid #bce0ce;
  border-radius: 0.85rem;
  background: #f0faf5;
}

.status-panel div { display: grid; gap: 0.2rem; }
.status-panel span:last-child { color: var(--muted); font-size: 0.92rem; }
.status-dot { width: 0.7rem; height: 0.7rem; margin-top: 0.35rem; border-radius: 50%; background: var(--green); flex: 0 0 auto; }

.build-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.5rem 0 0;
}

.build-meta div { padding: 0.85rem; border-radius: 0.7rem; background: #f6f8fb; }
.build-meta dt { color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; }
.build-meta dd { margin: 0.25rem 0 0; font-weight: 700; overflow-wrap: anywhere; }

.button {
  display: inline-block;
  padding: 0.75rem 1rem;
  border-radius: 0.65rem;
  color: white;
  background: var(--blue);
  text-decoration: none;
  font-weight: 700;
}

.button:hover { background: var(--blue-dark); }
.site-footer { color: var(--muted); text-align: center; font-size: 0.85rem; }

@media (max-width: 34rem) {
  .build-meta { grid-template-columns: 1fr; }
  .site-header { padding-block: 0.75rem; }
  .section-heading, .account-row { align-items: stretch; flex-direction: column; }
  .inline-create, .management-row { grid-template-columns: 1fr; }
  .institution-create, .institution-row, .field-grid, .admin-field-grid { grid-template-columns: 1fr; }
  .action-slot { justify-self: stretch; grid-template-columns: 1fr 1fr; }
  .action-slot select { max-width: none; }
  .class-resource-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .resource-button { min-width: 0; }
  .assignment-fields, .student-assignment { grid-template-columns: 1fr; }
  .assignment-title-row { align-items: flex-start; flex-wrap: wrap; }
  .assignment-order-controls { width: 100%; margin-left: 0; }
  .student-assignment dl { flex-wrap: wrap; }
  .header-nav { gap: .65rem; }
  .site-header { flex-wrap: wrap; gap: .7rem; }
  .header-nav { width: 100%; order: 3; overflow-x: auto; padding-bottom: .2rem; font-size: .85rem; }
  .runner-heading { flex-direction: column; }
  .runner-heading > div:last-child { text-align: left; }
  .assessment-question { min-height: 14rem; padding: 1rem; }
}