/* styles.css — shared global styles for the QwickLab SPA.
 *
 * Components use light DOM, so these class-based styles apply app-wide. Kept
 * deliberately small and framework-free; later frontend tasks extend this.
 *
 * Feature: qwicklab-platform
 */

:root {
  --qw-bg: #f5f6f8;
  --qw-surface: #ffffff;
  --qw-text: #1a1d21;
  --qw-muted: #5c6670;
  --qw-border: #d7dce1;
  --qw-primary: #2b6cb0;
  --qw-primary-contrast: #ffffff;
  --qw-error-bg: #fdecec;
  --qw-error-fg: #a12622;
  --qw-warning-bg: #fef6e7;
  --qw-warning-fg: #8a5a00;
  --qw-info-bg: #e8f1fb;
  --qw-info-fg: #1f5691;
  --qw-success-bg: #e8f6ec;
  --qw-success-fg: #1f7a3d;
  --qw-radius: 8px;
  --qw-gap: 1rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --qw-bg: #14171a;
    --qw-surface: #1e2226;
    --qw-text: #e8eaed;
    --qw-muted: #9aa4ad;
    --qw-border: #333b42;
    --qw-primary: #5aa0e0;
    --qw-primary-contrast: #0b0d0f;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--qw-text);
  background: var(--qw-bg);
  line-height: 1.5;
}

.qw-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: var(--qw-surface);
  border-bottom: 1px solid var(--qw-border);
}

.qw-brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--qw-text);
  text-decoration: none;
}

.qw-nav {
  display: flex;
  align-items: center;
  gap: var(--qw-gap);
}

.qw-user {
  color: var(--qw-muted);
  font-size: 0.9rem;
}

.qw-main {
  max-width: 480px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.qw-card {
  background: var(--qw-surface);
  border: 1px solid var(--qw-border);
  border-radius: var(--qw-radius);
  padding: 1.5rem;
}

.qw-auth {
  display: flex;
  flex-direction: column;
  gap: var(--qw-gap);
}

.qw-auth__title {
  margin: 0;
  font-size: 1.4rem;
}

.qw-auth__lead {
  margin: 0;
  color: var(--qw-muted);
}

.qw-auth__meta {
  margin: 0;
  color: var(--qw-muted);
  font-size: 0.85rem;
  min-height: 1.2em;
}

.qw-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.qw-field__label {
  font-size: 0.85rem;
  font-weight: 600;
}

.qw-field input {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--qw-border);
  border-radius: var(--qw-radius);
  background: var(--qw-bg);
  color: var(--qw-text);
  font-size: 1rem;
}

.qw-field input:focus-visible {
  outline: 2px solid var(--qw-primary);
  outline-offset: 1px;
}

.qw-btn {
  padding: 0.65rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--qw-radius);
  font-size: 1rem;
  cursor: pointer;
  background: transparent;
  color: var(--qw-text);
}

.qw-btn--primary {
  background: var(--qw-primary);
  color: var(--qw-primary-contrast);
}

.qw-btn--primary:disabled {
  opacity: 0.6;
  cursor: default;
}

.qw-btn--link {
  color: var(--qw-primary);
  text-decoration: underline;
  padding: 0.35rem 0;
}

.qw-hint > summary {
  cursor: pointer;
  color: var(--qw-muted);
  font-size: 0.9rem;
}

.qw-rules {
  margin: 0.25rem 0 0;
  padding-left: 1.1rem;
  color: var(--qw-muted);
  font-size: 0.85rem;
}

.qw-rule--ok {
  color: var(--qw-success-fg);
}

.qw-rule__mark {
  display: inline-block;
  width: 1.1em;
  font-weight: 700;
}

.qw-muted {
  color: var(--qw-muted);
}

.qw-alert {
  border-radius: var(--qw-radius);
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
}

.qw-alert--error {
  background: var(--qw-error-bg);
  color: var(--qw-error-fg);
}

.qw-alert--warning {
  background: var(--qw-warning-bg);
  color: var(--qw-warning-fg);
}

.qw-alert--info {
  background: var(--qw-info-bg);
  color: var(--qw-info-fg);
}

.qw-alert--success {
  background: var(--qw-success-bg);
  color: var(--qw-success-fg);
}

/* --- Task 26.2: dashboards, spend display, notification center ------------ */

/* Widen the outlet for dashboards while keeping auth cards compact. The auth
 * forms carry both .qw-card and .qw-auth, so capping .qw-auth keeps sign-in
 * narrow even though .qw-main is now wide. */
.qw-main {
  max-width: 960px;
}

.qw-auth {
  max-width: 440px;
  margin-inline: auto;
  width: 100%;
}

/* Header navigation links. */
.qw-nav__link {
  color: var(--qw-primary);
  text-decoration: none;
  font-size: 0.9rem;
}

.qw-nav__link:hover,
.qw-nav__link:focus-visible {
  text-decoration: underline;
}

/* Dashboard column layout: stacked panels with consistent spacing. */
.qw-dash {
  display: flex;
  flex-direction: column;
  gap: var(--qw-gap);
}

.qw-panel + .qw-panel,
.qw-dash > * + * {
  margin-top: 0;
}

.qw-panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.qw-panel__title {
  margin: 0;
  font-size: 1.15rem;
}

.qw-panel__sub {
  font-size: 0.85rem;
}

.qw-dash__title {
  margin: 0 0 0.25rem;
  font-size: 1.4rem;
}

/* Stat grids (spend pair, admin trio). */
.qw-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 0;
}

.qw-stats--pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.qw-stats--tri {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.qw-stat {
  border: 1px solid var(--qw-border);
  border-radius: var(--qw-radius);
  padding: 0.75rem 0.9rem;
  background: var(--qw-bg);
}

.qw-stat__label {
  margin: 0;
  font-size: 0.8rem;
  color: var(--qw-muted);
}

.qw-stat__value {
  margin: 0.2rem 0 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.qw-stat--big .qw-stat__value {
  font-size: 1.6rem;
}

.qw-stat__value--alert {
  color: var(--qw-error-fg);
}

/* Budget meter / progress bar. */
.qw-meter {
  height: 0.6rem;
  background: var(--qw-border);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 1rem;
}

.qw-meter__fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.2s ease;
  min-width: 0;
}

.qw-meter__fill--ok {
  background: var(--qw-success-fg);
}

.qw-meter__fill--warn {
  background: var(--qw-warning-fg);
}

.qw-meter__fill--danger {
  background: var(--qw-error-fg);
}

.qw-meter__caption {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  color: var(--qw-muted);
}

/* Unavailability indicator for graceful degradation (Requirement 10.3). */
.qw-unavailable {
  color: var(--qw-muted);
  font-style: italic;
  font-weight: 400;
  font-size: 0.95rem;
}

/* Supervised-labs list. */
.qw-labs,
.qw-notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.qw-lab__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--qw-border);
  border-radius: var(--qw-radius);
  text-decoration: none;
  color: var(--qw-text);
  background: var(--qw-bg);
}

.qw-lab__link:hover,
.qw-lab__link:focus-visible {
  border-color: var(--qw-primary);
}

.qw-lab__id {
  font-weight: 600;
}

.qw-lab__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
}

/* Status pills. */
.qw-pill {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--qw-border);
}

.qw-pill--active {
  background: var(--qw-success-bg);
  color: var(--qw-success-fg);
  border-color: transparent;
}

.qw-pill--pending {
  background: var(--qw-info-bg);
  color: var(--qw-info-fg);
  border-color: transparent;
}

.qw-pill--failed {
  background: var(--qw-error-bg);
  color: var(--qw-error-fg);
  border-color: transparent;
}

.qw-pill--muted {
  background: transparent;
  color: var(--qw-muted);
}

/* Notification center. */
.qw-badge {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--qw-primary);
  color: var(--qw-primary-contrast);
}

.qw-note {
  border: 1px solid var(--qw-border);
  border-radius: var(--qw-radius);
  background: var(--qw-bg);
}

.qw-note--unread {
  border-left: 3px solid var(--qw-primary);
}

.qw-note--critical.qw-note--unread {
  border-left-color: var(--qw-error-fg);
}

.qw-note--read {
  opacity: 0.85;
}

.qw-note--empty {
  border-style: dashed;
  padding: 0.75rem 0.9rem;
}

.qw-note__open {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  width: 100%;
  text-align: left;
  padding: 0.7rem 0.9rem;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: inherit;
  font: inherit;
}

.qw-note__open:focus-visible {
  outline: 2px solid var(--qw-primary);
  outline-offset: -2px;
}

.qw-note__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.qw-note__type {
  font-weight: 600;
  font-size: 0.9rem;
}

.qw-note--unread .qw-note__type {
  color: var(--qw-primary);
}

.qw-note__msg {
  font-size: 0.95rem;
}

.qw-note__time {
  font-size: 0.8rem;
  color: var(--qw-muted);
}

.qw-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--qw-primary);
  flex: none;
}

.qw-note__err {
  display: block;
  padding: 0 0.9rem 0.6rem;
  color: var(--qw-error-fg);
  font-size: 0.8rem;
}

/* Inline form (student spend lookup). */
.qw-inline-form {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.qw-inline-form .qw-field {
  flex: 1 1 200px;
}

/* Embedded remote session, observer, and assist views (Req 8, 9, 11). */
.qw-session {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.qw-session__banner:empty {
  display: none;
}

.qw-session__stage {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0b0d0f;
  border: 1px solid var(--qw-border);
  border-radius: var(--qw-radius);
  overflow: auto;
}

/* The guacamole-common-js display canvas mounts inside the stage. */
.qw-session__stage canvas,
.qw-session__stage > div {
  max-width: 100%;
}

.qw-session__placeholder {
  padding: 1.5rem;
  text-align: center;
  color: var(--qw-muted);
}

.qw-session__controls:empty {
  display: none;
}

.qw-session__footer {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

/* Turn-based control (assist). */
.qw-turn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--qw-border);
  border-radius: var(--qw-radius);
  background: var(--qw-surface);
}

.qw-turn__status {
  font-size: 0.9rem;
  color: var(--qw-muted);
}

.qw-turn__holder {
  color: var(--qw-text);
}

/* Session entry links. */
.qw-session-links {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

/* ---------------------------------------------------------------------------
 * Super_Admin management UIs (Requirements 1, 5, 6, 12, 20).
 * Account creation/deactivation, template authoring, lab allocation and
 * supervisor assignment, budget definition/update, and manual termination.
 * ------------------------------------------------------------------------- */

.qw-admin-manage {
  display: flex;
  flex-direction: column;
  gap: var(--qw-gap);
}

.qw-quicknav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.qw-adminform {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 32rem;
}

.qw-adminform__title {
  margin: 0;
  font-size: 1rem;
}

/* A row of fields that sit side by side on wider screens (e.g. CPU/mem/GPU). */
.qw-field-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.qw-field-row .qw-field {
  flex: 1 1 8rem;
}

/* Select controls share the field input styling. */
.qw-select {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--qw-border);
  border-radius: var(--qw-radius);
  background: var(--qw-surface);
  color: var(--qw-text);
  font: inherit;
}

.qw-select:focus-visible {
  outline: 2px solid var(--qw-primary);
  outline-offset: 1px;
}

/* Checkbox rows. */
.qw-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.qw-check input {
  width: 1rem;
  height: 1rem;
}

/* A subtle separator between two forms inside one panel. */
.qw-divider {
  border: none;
  border-top: 1px solid var(--qw-border);
  margin: 0.5rem 0;
}

/* A row of buttons (e.g. confirm/cancel on a destructive action). */
.qw-btn-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

/* Destructive action button (manual termination, deactivation). */
.qw-btn--danger {
  background: var(--qw-error-fg);
  color: #ffffff;
}

.qw-btn--danger:disabled {
  opacity: 0.6;
  cursor: default;
}