:root {
  --bg: #0b1021;
  --card: #11162b;
  --accent: #7c3aed;
  --accent-1: #a855f7;
  --accent-2: #22d3ee;
  --text: #e9ecf5;
  --text-muted: #cbd5f5;
  --muted: #9ba3b5;
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.35);
}


* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(124, 58, 237, 0.25), transparent 35%),
              radial-gradient(circle at 80% 0%, rgba(34, 211, 238, 0.2), transparent 30%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}


  .print-view {
    display: none;
  }

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

.hero {
  position: relative;
  overflow: hidden;
  padding: 72px clamp(16px, 8vw, 120px) 48px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: flex-start;
}

.glass {
  position: absolute;
  inset: 24px;
  background: linear-gradient(120deg, rgba(124, 58, 237, 0.14), rgba(34, 211, 238, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 32px;
  filter: blur(0px);
  z-index: 0;
}


.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 780px;
}

.badge {
  width: fit-content;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.15;
}

.highlight {
  color: var(--accent-2);
}

.subtitle {
  color: var(--muted);
  font-size: 18px;
}

.cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  padding: 14px 18px;
  border-radius: 12px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 10px 40px rgba(124, 58, 237, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.1);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 14px;
}

.hero__stats div {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 14px;
  text-align: center;
}

.stat {
  font-size: 26px;
  font-weight: 700;
  color: var(--accent-2);
}

.sections {
  padding: 40px clamp(16px, 8vw, 120px);
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.section {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  padding: clamp(20px, 4vw, 36px);
  box-shadow: var(--shadow);
}

.section__title {
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 700;
  margin-bottom: 8px;
}

.section__subtitle {
  color: var(--muted);
  margin-bottom: 24px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.icon {
  font-size: 22px;
}

.section--cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.planner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
}

.planner__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.planner__header-actions {
  margin-left: auto;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.planner__intro {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.planner__session {
  margin-left: 0;
  align-self: flex-start;
  justify-content: flex-end;
  text-align: right;
}

.planner__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  align-items: start;
}

.icon-button {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 22px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

#copy-course svg {
  width: 18px;
  height: 18px;
}

.icon-button--compact {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font-size: 18px;
}

.icon-button:hover,
.icon-button:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  background: rgba(255, 255, 255, 0.1);
  outline: none;
}

.icon-button--danger {
  color: #fecdd3;
  border-color: rgba(239, 68, 68, 0.4);
  background: rgba(239, 68, 68, 0.1);
}

.icon-button--danger:hover,
.icon-button--danger:focus-visible {
  background: rgba(239, 68, 68, 0.18);
}

.is-hidden {
  display: none;
}

.course-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.activity-form__actions {
  align-items: flex-start;
}

.activity-form__buttons {
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.16);
  color: #fecdd3;
  border-color: rgba(239, 68, 68, 0.5);
}

.btn-danger:hover,
.btn-danger:focus-visible {
  background: rgba(239, 68, 68, 0.24);
  box-shadow: var(--shadow);
  outline: none;
}

.course-form__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.course-toolbar {
  margin-top: 0;
  margin-bottom: 8px;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(120deg, rgba(124, 58, 237, 0.08), rgba(34, 211, 238, 0.08));
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.course-toolbar__intro {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.course-toolbar__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.course-selector {
  margin-top: 12px;
  margin-bottom: 8px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(120deg, rgba(124, 58, 237, 0.08), rgba(34, 211, 238, 0.08));
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.course-selector .form-field {
  flex: 1;
  min-width: 220px;
}

.course-selector .form-field--compact {
  flex: 0 0 auto;
  min-width: unset;
}

.course-selector .form-field--compact select {
  width: auto;
  min-width: 0;
}

.course-details {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  padding-top: 4px;
}

.course-detail-row {
  display: contents;
}

.course-detail-label {
  font-weight: 600;
  color: var(--text);
}

.course-detail-value {
  color: var(--muted);
}

.course-title {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.course-title:hover,
.course-title:focus-visible {
  color: var(--primary);
  text-decoration: underline;
}

.course-title--readonly {
  cursor: default;
}

.course-title--readonly:hover,
.course-title--readonly:focus-visible {
  color: inherit;
  text-decoration: none;
}

.print-button svg {
  width: 22px;
  height: 22px;
}

#share-course svg {
  width: 22px;
  height: 22px;
}

.print-button[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.course-toolbar__actions {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.course-editor__form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.course-editor__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.course-editor__action-buttons {
  display: flex;
  gap: 10px;
}

.panel-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow);
}

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

.activity-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-weight: 600;
}

.form-field--inline span {
  font-size: 14px;
}

.half-day-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
}

.toggle-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}

.toggle-button__track {
  position: relative;
  width: 46px;
  height: 24px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: inline-flex;
  align-items: center;
  padding: 2px;
  transition: background 150ms ease, border-color 150ms ease;
}

.toggle-button__thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--card);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  transition: transform 150ms ease, background 150ms ease;
}

.toggle-button__state {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.toggle-button.is-active {
  background: rgba(82, 151, 255, 0.12);
  border-color: rgba(82, 151, 255, 0.4);
  color: var(--text);
}

.toggle-button.is-active .toggle-button__track {
  background: rgba(82, 151, 255, 0.35);
  border-color: rgba(82, 151, 255, 0.6);
}

.toggle-button.is-active .toggle-button__thumb {
  transform: translateX(22px);
  background: var(--accent-2);
}

.toggle-button.is-active .toggle-button__state {
  color: var(--accent-2);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font: inherit;
}

#course-select {
  background: var(--card);
  border-color: rgba(255, 255, 255, 0.2);
}

#school-year-select {
  background: var(--card);
  border-color: rgba(255, 255, 255, 0.2);
}

#course-select option {
  background: var(--card);
  color: var(--text);
}

.form-field textarea {
  resize: vertical;
}

.format-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(52px, 1fr));
  gap: 8px;
}

.format-chip {
  align-items: center;
  aspect-ratio: 1 / 1;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  transition: transform 150ms ease, border-color 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.format-chip:hover,
.format-chip:focus-visible {
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

.format-chip.is-selected {
  background: linear-gradient(145deg, rgba(124, 58, 237, 0.4), rgba(34, 211, 238, 0.3));
  border-color: rgba(124, 58, 237, 0.7);
  box-shadow: 0 12px 28px rgba(124, 58, 237, 0.35);
}

.format-chip__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.format-chip__icon svg,
.format-icon svg {
  width: 22px;
  height: 22px;
  display: block;
  stroke: currentColor;
}

.format-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.timeline {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
  grid-column: 1 / -1;
}

.course-modal,
.activity-modal,
.reschedule-modal,
.auth-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.course-modal[hidden],
.activity-modal[hidden],
.reschedule-modal[hidden],
.auth-overlay[hidden] {
  display: none;
}

.course-modal__backdrop,
.activity-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.course-modal__content,
.activity-modal__content,
.auth-card {
  position: relative;
  background: #0e1427;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.4);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  z-index: 1;
}

.course-modal__content,
.activity-modal__content {
  width: min(640px, 92vw);
}

.auth-card {
  width: min(420px, 92vw);
}

.course-modal__header,
.activity-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.icon-button--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.14);
}

.timeline__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}


.timeline__grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.week-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.week-card__title-button {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font: inherit;
  padding: 0;
  text-align: left;
}

.week-card__title-button:focus-visible {
  outline: 2px solid var(--accent-1);
  outline-offset: 2px;
}

.week-card__title-button:hover {
  color: var(--accent-1);
}

.week-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.week-card__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.slots {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.slot {
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.02);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slot--filled {
  border-style: solid;
  border-color: rgba(34, 211, 238, 0.6);
  background: linear-gradient(160deg, rgba(34, 211, 238, 0.08), rgba(124, 58, 237, 0.08));
}


.slot__label {
  font-weight: 700;
  color: var(--accent-2);
}

.slot__label-button {
  background: none;
  border: none;
  color: inherit;
  font: inherit;
  padding: 0;
  text-align: left;
  cursor: pointer;
}

.slot__label-button:hover,
.slot__label-button:focus {
  color: var(--accent-1);
}

.slot__content {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 48px;
}

.slot__content--drop-end {
  position: relative;
}

.slot__content--drop-end::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: rgba(34, 211, 238, 0.8);
  border-radius: 999px;
}

.slot--holiday {
  border-color: rgba(239, 68, 68, 0.5);
  background: linear-gradient(160deg, rgba(239, 68, 68, 0.08), rgba(239, 68, 68, 0.02));
}


.slot__content--holiday {
  pointer-events: none;
  opacity: 0.9;
}

.activity {
  padding: 10px 10px 10px 22px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: default;
  transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
  position: relative;
  overflow: hidden;
  --activity-icon-size: 22px;
  --activity-icon-gap: 10px;
}

.activity--readonly {
  padding-left: 10px;
}

.activity.is-dragging {
  opacity: 0.8;
  transform: scale(0.99);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  cursor: grabbing;
}

.activity__handle {
  position: absolute;
  inset: 0 auto 0 0;
  width: 14px;
  background: linear-gradient(180deg, rgba(14, 165, 233, 0.2), rgba(14, 165, 233, 0.08));
  border-right: 1px solid rgba(14, 165, 233, 0.25);
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
}

.activity__handle::after {
  content: '';
  display: block;
  width: 6px;
  height: 50%;
  min-height: 24px;
  background-image: radial-gradient(currentColor 45%, transparent 45%);
  background-size: 4px 4px;
  background-repeat: repeat;
  opacity: 0.8;
}

.activity.is-dragging .activity__handle {
  cursor: grabbing;
}

.activity--drop-marker {
  outline: 2px dashed rgba(34, 211, 238, 0.8);
  outline-offset: -6px;
}

.activity {
  --activity-duration-width: 132px;
  --activity-duration-icon-size: 16px;
  --activity-duration-gap: 6px;
}

.activity__grid {
  display: grid;
  grid-template-columns: var(--activity-duration-width) 1.4fr 1.2fr;
  grid-template-areas:
    'planned title materials'
    'realtime details materials';
  column-gap: 16px;
  row-gap: 10px;
  align-items: start;
  grid-template-rows: minmax(0, auto) minmax(0, auto);
}

.activity__cell--title {
  grid-area: title;
}

.activity__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.activity__cell--planned {
  grid-area: planned;
}

.activity__cell--realtime {
  grid-area: realtime;
}

.activity__cell--details {
  grid-area: details;
}

.activity__cell--materials {
  grid-area: materials;
  align-self: start;
  grid-row: 1 / span 2;
}

.activity__cell--realtime .activity__realtime-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  padding-left: calc(
    var(--activity-duration-icon-size) + var(--activity-duration-gap)
  );
}

.activity__duration {
  display: inline-flex;
  align-items: center;
  gap: var(--activity-duration-gap);
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.activity__realtime {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  background: none;
  border: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}

.activity__realtime-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.activity__realtime:hover,
.activity__realtime:focus-visible {
  color: var(--text);
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

.activity__realtime--empty {
  color: var(--muted);
}

.activity__timer-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.activity__timer-button--running {
  justify-content: center;
  padding: 0;
}

.activity__timer-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.activity__timer-icon svg {
  width: 18px;
  height: 18px;
}

.activity__duration-icon {
  display: inline-flex;
  width: var(--activity-duration-icon-size);
  height: var(--activity-duration-icon-size);
  color: var(--accent-2);
}

.activity__duration-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.activity__title-button {
  font-weight: 700;
  background: none;
  border: none;
  color: inherit;
  padding: 0;
  cursor: pointer;
  text-align: left;
}

.activity__title {
  font-weight: 700;
}

.activity__title-button:hover,
.activity__title-button:focus-visible {
  text-decoration: underline;
}

.activity__heading {
  display: inline-flex;
  align-items: center;
  gap: var(--activity-icon-gap);
  width: 100%;
}

.activity__heading .format-icon {
  width: var(--activity-icon-size);
  height: var(--activity-icon-size);
}

.activity__details {
  color: var(--muted);
  margin-left: calc(var(--activity-icon-size) + var(--activity-icon-gap));
}

.activity__materials {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  justify-self: start;
  align-items: flex-start;
}

.activity__materials-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-start;
  width: 100%;
}

.activity__materials-item {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.activity__materials-icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.activity__materials-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.activity__materials-text {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

a.activity__materials-text {
  color: inherit;
  text-decoration: none;
}

a.activity__materials-text:hover,
a.activity__materials-text:focus-visible {
  text-decoration: underline;
}

.empty {
  color: var(--muted);
  font-style: italic;
}

.slot__content--over {
  border: 1px dashed rgba(34, 211, 238, 0.6);
  border-radius: 10px;
  padding: 6px;
  background: rgba(34, 211, 238, 0.06);
}

.label {
  color: var(--accent-2);
  font-weight: 700;
  letter-spacing: 0.02em;
}

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

.session-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  box-shadow: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.auth-card__header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 4px;
  gap: 6px;
}

.auth-tab {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 10px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
}

.auth-tab.is-active {
  background: linear-gradient(120deg, rgba(124, 58, 237, 0.25), rgba(34, 211, 238, 0.25));
  color: var(--text);
}

.auth-tab.is-disabled,
.auth-tab[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-field--static {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-static {
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.auth-overlay.is-hidden {
  display: none;
}

.footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  padding: 24px;
  color: var(--muted);
}

@media print {
  @page {
    size: A4 portrait;
    margin: 8mm;
  }


  :root {
    --text: #0f172a;
    --muted: #475569;
    --primary: #0f172a;
    color: #0f172a;
  }

  body {
    background: #fff;
    color: #0f172a;
    font-size: 10.5px;
    line-height: 1.3;
  }

  body > :not(.print-view) {
    display: none !important;
  }

  .print-view {
    display: block;
  }

  .print-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
  }

  .print-course-title {
    font-size: 14px;
    font-weight: 800;
    color: #0f172a;
    margin: 2px 0 4px;
  }

  .print-course-meta {
    margin: 0;
    color: var(--muted);
    font-size: 10.5px;
  }

  .print-header__details {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px 12px;
    min-width: 260px;
  }

  .print-detail {
    display: flex;
    flex-direction: column;
    gap: 2px;
    align-items: flex-start;
  }

  .print-detail__label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--muted);
  }

  .print-detail__value {
    font-weight: 700;
    color: #0f172a;
  }

  .print-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid #cbd5e1;
    font-size: 10px;
  }

  .print-table th,
  .print-table td {
    border: 1px solid #cbd5e1;
    padding: 6px 8px;
    text-align: left;
    vertical-align: top;
    color: #0f172a;
  }

  .print-table th {
    background: #e2e8f0;
    font-weight: 700;
  }

  .print-table__subheading th {
    background: #f8fafc;
    font-size: 11px;
    font-weight: 700;
    text-transform: capitalize;
  }

  .print-table__row--empty td {
    text-align: center;
    color: #475569;
  }
}

@media (max-width: 720px) {
  .activity__grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      'title'
      'planned'
      'realtime'
      'details'
      'materials';
  }

  .activity__realtime-actions {
    width: 100%;
  }
}

@media (max-width: 900px) {
  .hero {
    padding-top: 52px;
  }

  .planner__grid {
    grid-template-columns: 1fr;
  }
}
.auth-overlay {
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}