/* =========================================================
   Makeup Lessons Theme
========================================================= */

:root {
  color-scheme: dark;

  --color-primary: #132f7c;
  --color-primary-deep: #071536;
  --color-primary-soft: #1f4db8;

  --color-secondary: #20bdbe;
  --color-secondary-soft: #7ff4f2;
  --color-secondary-muted: rgba(32, 189, 190, 0.2);

  --color-accent: #8eeaff;
  --color-accent-strong: #36d9ff;

  --color-bg: #071536;
  --color-bg-2: #09204a;
  --color-bg-card: rgba(255, 255, 255, 0.075);
  --color-bg-card-strong: rgba(255, 255, 255, 0.105);
  --color-bg-subtle: rgba(255, 255, 255, 0.045);

  --color-text: #eef8ff;
  --color-text-muted: rgba(238, 248, 255, 0.72);
  --color-text-faint: rgba(238, 248, 255, 0.52);

  --color-border: rgba(255, 255, 255, 0.13);
  --color-border-strong: rgba(255, 255, 255, 0.22);

  --color-success: #7ef0a7;
  --color-warning: #ffd36d;
  --color-danger: #ff7d7d;

  --shadow-soft: 0 18px 60px rgba(0, 0, 0, 0.28);
  --shadow-card: 0 12px 38px rgba(0, 0, 0, 0.22);
  --shadow-small: 0 8px 20px rgba(0, 0, 0, 0.18);
  --shadow-modal: 0 32px 110px rgba(0, 0, 0, 0.52);

  --glass-blur: 18px;
  --glass-blur-soft: 12px;

  --radius-xs: 0.45rem;
  --radius-sm: 0.65rem;
  --radius-md: 1rem;
  --radius-lg: 1.45rem;
  --radius-xl: 2rem;

  --page-max-width: 1380px;
  --modal-max-width: 1080px;

  --space-page: clamp(0.8rem, 1.8vw, 1.6rem);
  --space-card: clamp(1rem, 1.8vw, 1.45rem);

  --font-eyebrow: 0.76rem;
  --font-title: clamp(2rem, 4.2vw, 4rem);
  --font-heading: clamp(1.25rem, 2vw, 1.8rem);
  --font-subtitle: clamp(0.98rem, 1.35vw, 1.12rem);

  --transition-fast: 140ms ease;
  --transition-med: 220ms ease;

  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

/* =========================================================
   Reset / Base
========================================================= */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--color-bg);
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

html,
body {
  min-height: 100%;
}

body {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  color: var(--color-text);
  background:
    linear-gradient(180deg, #061327 0%, #071a36 42%, #071536 100%);
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before,
body::after {
  content: "";
  position: fixed;
  pointer-events: none;
  z-index: -2;
  border-radius: 999px;
  filter: blur(92px);
  transform: translateZ(0);
}

body::before {
  width: min(44rem, 80vw);
  height: min(44rem, 80vw);
  top: -16rem;
  left: -13rem;
  background: rgba(32, 189, 190, 0.24);
}

body::after {
  width: min(40rem, 72vw);
  height: min(40rem, 72vw);
  right: -14rem;
  bottom: -15rem;
  background: rgba(54, 217, 255, 0.18);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

svg {
  display: block;
  max-width: 100%;
}

.hidden {
  display: none !important;
}

/* =========================================================
   Core UI
========================================================= */

.core-app-shell,
#app-shell {
  padding:
    max(var(--space-page), env(safe-area-inset-top))
    max(var(--space-page), env(safe-area-inset-right))
    max(var(--space-page), env(safe-area-inset-bottom))
    max(var(--space-page), env(safe-area-inset-left));
}

.page-wrap {
  width: min(var(--page-max-width), 100%);
  margin-inline: auto;
}

.center-wrap {
  min-height: calc(100dvh - (var(--space-page) * 2));
  display: grid;
  place-items: center;
}

.glass,
.glass-card,
.glass-subtle {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}

.glass::before,
.glass-card::before,
.glass-subtle::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(
      145deg,
      rgba(255, 255, 255, 0.14),
      transparent 38%,
      rgba(255, 255, 255, 0.035)
    );
  opacity: 0.48;
}

.glass {
  background: rgba(9, 24, 58, 0.68);
  box-shadow: var(--shadow-soft);
}

.glass-card {
  padding: var(--space-card);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(
      155deg,
      rgba(255, 255, 255, 0.095),
      rgba(255, 255, 255, 0.052)
    );
  box-shadow: var(--shadow-card);
}

.glass-subtle {
  border-color: rgba(255, 255, 255, 0.09);
  background: var(--color-bg-subtle);
  backdrop-filter: blur(var(--glass-blur-soft));
  -webkit-backdrop-filter: blur(var(--glass-blur-soft));
}

.glass > *,
.glass-card > *,
.glass-subtle > * {
  position: relative;
  z-index: 1;
}

.core-eyebrow {
  margin: 0 0 0.4rem;
  color: var(--color-secondary-soft);
  font-size: var(--font-eyebrow);
  font-weight: 780;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.core-title {
  margin: 0;
  color: var(--color-text);
  font-size: var(--font-title);
  line-height: 0.98;
  font-weight: 860;
  letter-spacing: -0.065em;
}

.core-subtitle {
  max-width: 72ch;
  margin: 0.85rem 0 0;
  color: var(--color-text-muted);
  font-size: var(--font-subtitle);
  line-height: 1.65;
}

.core-heading {
  margin: 0;
  color: var(--color-text);
  font-size: var(--font-heading);
  line-height: 1.12;
  font-weight: 820;
  letter-spacing: -0.045em;
}

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

.small {
  font-size: 0.92rem;
}

.strong-line {
  font-weight: 780;
  line-height: 1.35;
}

.error-text {
  color: var(--color-danger);
}

/* =========================================================
   Inputs / Buttons
========================================================= */

.core-input,
.core-select,
.core-textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.72rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.07);
  outline: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
}

.core-textarea {
  min-height: 7rem;
  resize: vertical;
}

.core-select {
  color-scheme: dark;
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2.6rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.095), rgba(255, 255, 255, 0.045)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%237ff4f2' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E")
      right 0.85rem center / 1rem no-repeat;
}

.core-select option {
  color: var(--color-text);
  background: #071536;
}

.core-input::placeholder,
.core-textarea::placeholder {
  color: var(--color-text-faint);
}

.core-input:focus,
.core-select:focus,
.core-textarea:focus {
  border-color: color-mix(in srgb, var(--color-secondary) 70%, white);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-secondary) 24%, transparent);
  background: rgba(255, 255, 255, 0.095);
}

.core-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.65rem;
  padding: 0.68rem 1rem;
  border: 1px solid color-mix(in srgb, var(--color-secondary) 38%, transparent);
  border-radius: var(--radius-md);
  color: #ffffff;
  background:
    linear-gradient(
      135deg,
      var(--color-primary-soft),
      var(--color-secondary)
    );
  box-shadow: var(--shadow-small);
  font-weight: 760;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    opacity var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.core-button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.core-button:active:not(:disabled) {
  transform: translateY(0);
}

.core-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.core-button.secondary {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.075);
}

.core-button.ghost {
  color: var(--color-text);
  background: transparent;
  box-shadow: none;
}

.core-button.small-btn {
  min-height: 2.15rem;
  padding: 0.46rem 0.78rem;
  font-size: 0.9rem;
}

.icon-btn {
  width: 2.7rem;
  height: 2.7rem;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.075);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.icon-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.11);
  border-color: var(--color-border-strong);
}

/* =========================================================
   Layout
========================================================= */

.admin-page,
.public-page {
  display: grid;
  gap: 1rem;
}

.page-header {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 1rem;
  padding: clamp(1rem, 2.2vw, 1.8rem);
  border-radius: var(--radius-xl);
}

.header-actions {
  display: flex;
  align-items: end;
  justify-content: flex-end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.month-picker {
  display: grid;
  gap: 0.35rem;
  min-width: min(240px, 100%);
}

.admin-command-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.command-card {
  min-height: 13rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition:
    transform var(--transition-med),
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
}

.command-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--color-secondary) 42%, transparent);
  background:
    linear-gradient(
      155deg,
      rgba(255, 255, 255, 0.12),
      rgba(255, 255, 255, 0.065)
    );
  box-shadow: var(--shadow-soft);
}

.command-card h2 {
  margin: 0 0 0.45rem;
  font-size: 1.12rem;
  line-height: 1.12;
  font-weight: 820;
  letter-spacing: -0.04em;
}

.command-card p {
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.primary-command {
  border-color: color-mix(in srgb, var(--color-secondary) 38%, var(--color-border));
  background:
    linear-gradient(
      155deg,
      rgba(32, 189, 190, 0.15),
      rgba(255, 255, 255, 0.055)
    );
}

.command-icon {
  width: 3rem;
  height: 3rem;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 1rem;
  border: 1px solid color-mix(in srgb, var(--color-secondary) 38%, transparent);
  background:
    linear-gradient(
      145deg,
      rgba(32, 189, 190, 0.18),
      rgba(255, 255, 255, 0.055)
    );
}

.command-icon svg {
  width: 1.45rem;
  height: 1.45rem;
  fill: none;
  stroke: var(--color-secondary-soft);
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.admin-overview-grid {
  display: grid;
  grid-template-columns: minmax(290px, 0.9fr) minmax(320px, 1.1fr);
  gap: 1rem;
}

.overview-card {
  min-width: 0;
}

.overview-card.wide {
  grid-column: 1 / -1;
}

.section-title-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-title-row h2,
.section-title-row h3,
.section-title-row h4,
.modal-header h3,
.modal-body h4 {
  margin: 0 0 0.25rem;
  font-weight: 820;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.section-title-row h2 {
  font-size: 1.2rem;
}

.modal-body h4 {
  font-size: 1.02rem;
}

.stack-form {
  display: grid;
  gap: 1rem;
}

.stack-form label {
  display: grid;
  gap: 0.45rem;
}

.compact-form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.inline-check {
  display: flex !important;
  align-items: center;
  gap: 0.75rem;
}

.inline-check input {
  width: auto;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.label-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.65rem;
}

/* =========================================================
   Cards / Lists
========================================================= */

.student-card.signed-up {
  border-color: rgba(126, 240, 167, 0.24);
  background: rgba(126, 240, 167, 0.06);
}

.student-badge.success {
  color: var(--color-success);
  background: rgba(126, 240, 167, 0.13);
}

.signup-summary {
  padding: 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(126, 240, 167, 0.16);
  background: rgba(126, 240, 167, 0.07);
}

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

.summary-card {
  min-width: 0;
  padding: 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.045);
}

.summary-card.wide {
  grid-column: 1 / -1;
}

.summary-value {
  color: var(--color-text);
  font-size: clamp(1.55rem, 2.5vw, 2.2rem);
  line-height: 1;
  font-weight: 850;
  letter-spacing: -0.055em;
}

.summary-value.small-text {
  font-size: 0.95rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.summary-label {
  margin-top: 0.38rem;
  color: var(--color-text-muted);
  font-size: 0.86rem;
}

.grouped-opening-card {
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,0.075),
      rgba(255,255,255,0.04)
    );
  overflow: hidden;
}

.grouped-opening-card summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem;
}

.grouped-opening-card summary::-webkit-details-marker {
  display: none;
}

.grouped-opening-card summary::after {
  content: "View dates";
  display: inline-flex;
  margin-top: 0.85rem;
  color: var(--color-secondary-soft);
  font-size: 0.82rem;
  font-weight: 780;
}

.grouped-opening-card[open] summary::after {
  content: "Hide dates";
}

.summary-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
}

.grouped-opening-dates {
  display: grid;
  gap: 0.65rem;
  padding: 0 1rem 1rem;
}

.date-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.85rem;
  align-items: center;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.045);
  border: 1px solid rgba(255,255,255,0.07);
}

@media (max-width: 760px) {
  .summary-main,
  .date-row {
    grid-template-columns: 1fr;
  }
}

.list-stack,
.selection-list {
  display: grid;
  gap: 0.72rem;
}

.compact-list {
  max-height: 38rem;
  overflow: auto;
  padding-right: 0.25rem;
}

.list-card,
.selectable-row,
.student-card,
.empty-state,
.wizard-panel,
.link-preview-box,
.link-box {
  border: 1px solid rgba(255, 255, 255, 0.085);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.045);
}

.list-card {
  padding: 0.95rem;
}

.list-card-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

.selectable-row {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  padding: 0.88rem;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.selectable-row:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--color-secondary) 34%, transparent);
  background: rgba(255, 255, 255, 0.07);
}

.selectable-row input {
  width: auto;
  margin-top: 0.25rem;
}

.tall-selection {
  max-height: 26rem;
  overflow: auto;
  padding-right: 0.25rem;
}

.empty-state {
  padding: 1rem;
  text-align: center;
  color: var(--color-text-muted);
}

.wizard-panel,
.link-preview-box,
.link-box {
  padding: 1rem;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tiny-pill,
.status-pill,
.live-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  border-radius: 999px;
  font-weight: 760;
  font-size: 0.78rem;
  padding: 0.42rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.06);
}

.tiny-pill.accent {
  color: var(--color-secondary-soft);
  background: var(--color-secondary-muted);
}

.tiny-pill.success,
.status-pill.success {
  color: var(--color-success);
  background: rgba(126, 240, 167, 0.13);
}

.status-pill.warning {
  color: var(--color-warning);
  background: rgba(255, 211, 109, 0.13);
}

.status-pill.error {
  color: var(--color-danger);
  background: rgba(255, 125, 125, 0.13);
}

.copy-row {
  display: flex;
  gap: 0.7rem;
  margin-top: 0.55rem;
}

.preview-url,
.copy-row input {
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* =========================================================
   Capacity / Slot Editor
========================================================= */

.capacity-list {
  max-height: 55dvh;
  overflow: auto;
  padding-right: 0.25rem;
}

.capacity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 8rem;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.085);
  background: rgba(255, 255, 255, 0.045);
}

.slot-editor-table {
  display: grid;
  gap: 0.72rem;
}

.slot-editor-head,
.slot-editor-row {
  display: grid;
  grid-template-columns:
    minmax(170px, 1.1fr)
    minmax(150px, 1fr)
    7rem
    minmax(140px, 0.9fr)
    auto;
  gap: 0.7rem;
  align-items: center;
}

.slot-editor-head {
  padding-inline: 0.4rem;
  color: var(--color-text-muted);
  font-size: 0.82rem;
  font-weight: 760;
}

.slot-editor-row {
  padding: 0.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.085);
  background: rgba(255, 255, 255, 0.045);
}

.slot-cell {
  min-width: 0;
}

/* =========================================================
   Public Page
========================================================= */

.booking-hero {
  padding: clamp(1rem, 2vw, 1.4rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.meta-label {
  margin-bottom: 0.35rem;
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-value {
  font-size: 1.02rem;
  font-weight: 780;
}

.lookup-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 1rem;
}

.student-card {
  width: 100%;
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.student-card:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--color-secondary) 34%, transparent);
  background: rgba(255, 255, 255, 0.07);
}

.student-card-top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.student-name {
  font-weight: 820;
  letter-spacing: -0.03em;
}

.student-stage,
.student-meta {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.student-badge {
  align-self: flex-start;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  color: var(--color-success);
  background: rgba(126, 240, 167, 0.13);
  font-size: 0.78rem;
  font-weight: 760;
}

/* =========================================================
   Calendar
========================================================= */

.calendar-toolbar {
  align-items: center;
}

.month-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.month-label {
  min-width: 8.5rem;
  text-align: center;
  color: var(--color-text);
  font-weight: 820;
}

.calendar-grid.header,
.calendar-grid.body {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.7rem;
}

.calendar-grid.header {
  margin-bottom: 0.7rem;
}

.calendar-grid.header > div {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.84rem;
  font-weight: 760;
}

.calendar-cell {
  min-height: 9.5rem;
  padding: 0.7rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.075);
  background: rgba(255, 255, 255, 0.038);
}

.large-cell {
  min-height: 14rem;
}

.muted-cell {
  opacity: 0.2;
}

.calendar-day {
  margin-bottom: 0.58rem;
  font-size: 0.9rem;
  font-weight: 820;
}

.rich-calendar-items,
.calendar-items {
  display: grid;
  gap: 0.62rem;
}

.calendar-slot-card {
  display: grid;
  gap: 0.68rem;
  padding: 0.72rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.085);
  background: rgba(255, 255, 255, 0.052);
}

.calendar-slot-head {
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
}

.slot-time {
  font-weight: 820;
}

.slot-stage {
  margin-top: 0.2rem;
  color: var(--color-text-muted);
  font-size: 0.84rem;
}

.slot-badge {
  align-self: flex-start;
  padding: 0.35rem 0.58rem;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 780;
}

.slot-badge.available {
  color: var(--color-success);
  background: rgba(126, 240, 167, 0.14);
}

.slot-badge.mixed,
.slot-badge.held {
  color: var(--color-warning);
  background: rgba(255, 211, 109, 0.14);
}

.slot-badge.full {
  color: var(--color-danger);
  background: rgba(255, 125, 125, 0.14);
}

.progress-bar-shell {
  width: 100%;
  height: 0.55rem;
  display: flex;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.065);
}

.progress-seg {
  height: 100%;
}

.progress-booked {
  background: rgba(255, 125, 125, 0.92);
}

.progress-held {
  background: rgba(255, 211, 109, 0.92);
}

.progress-available {
  background: rgba(126, 240, 167, 0.92);
}

.progress-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.legend-item {
  font-size: 0.74rem;
}

.legend-item.red {
  color: var(--color-danger);
}

.legend-item.yellow {
  color: var(--color-warning);
}

.legend-item.green {
  color: var(--color-success);
}

/* =========================================================
   Modals
========================================================= */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  padding: clamp(0.75rem, 2vw, 1.25rem);
  background: rgba(2, 8, 20, 0.76);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
}

.modal-card {
  width: min(560px, 100%);
  max-height: min(88dvh, 920px);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(
      145deg,
      rgba(11, 28, 67, 0.98),
      rgba(5, 15, 35, 0.98)
    );
  box-shadow: var(--shadow-modal);
  overflow: hidden;
}

.modal-card-wide {
  width: min(var(--modal-max-width), 100%);
}

.modal-header {
  flex: 0 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.085);
}

.modal-body {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  gap: 1rem;
  padding: 1rem 1.15rem 1.2rem;
  overflow: auto;
}

.modal-split {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(280px, 1fr);
  gap: 1rem;
}

.hold-banner {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  color: var(--color-warning);
  background: rgba(255, 211, 109, 0.14);
  font-weight: 760;
}

/* =========================================================
   Tables
========================================================= */

.table-wrap {
  overflow: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  padding: 0.85rem 0.95rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-table th {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table-empty {
  text-align: center;
  color: var(--color-text-muted);
}

/* =========================================================
   Messages
========================================================= */

.inline-message {
  min-height: 1.45rem;
  color: var(--color-text-muted);
  font-size: 0.94rem;
}

.inline-message.success {
  color: var(--color-success);
}

.inline-message.error {
  color: var(--color-danger);
}

.inline-message.info {
  color: var(--color-text-muted);
}

/* =========================================================
   Responsive
========================================================= */

@media (max-width: 1180px) {
  .admin-command-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-overview-grid {
    grid-template-columns: 1fr;
  }

  .slot-editor-head,
  .slot-editor-row {
    grid-template-columns: 1fr;
  }

  .slot-editor-head {
    display: none;
  }
}

@media (max-width: 860px) {
  .page-header {
    grid-template-columns: 1fr;
  }

  .header-actions {
    justify-content: stretch;
  }

  .header-actions > *,
  .month-picker,
  .header-actions form,
  .header-actions .core-button {
    width: 100%;
  }

  .compact-form-grid,
  .modal-split,
  .hero-grid,
  .lookup-form {
    grid-template-columns: 1fr;
  }

  .calendar-grid.header,
  .calendar-grid.body {
    grid-template-columns: 1fr;
  }

  .calendar-grid.header {
    display: none;
  }

  .calendar-cell,
  .large-cell {
    min-height: unset;
  }

  .calendar-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .month-nav {
    justify-content: stretch;
  }

  .month-nav .core-button,
  .month-label {
    flex: 1 1 auto;
  }
}

@media (max-width: 640px) {
  :root {
    --space-page: 0.72rem;
    --space-card: 0.9rem;
    --radius-xl: 1.45rem;
    --radius-lg: 1.1rem;
  }

  .admin-command-grid {
    grid-template-columns: 1fr;
  }

  .command-card {
    min-height: unset;
    padding: 1rem;
  }

  .command-icon {
    width: 2.7rem;
    height: 2.7rem;
    border-radius: 0.9rem;
  }

  .core-title {
    font-size: clamp(2rem, 13vw, 3rem);
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .list-card-top,
  .student-card-top,
  .calendar-slot-head,
  .copy-row,
  .label-row {
    flex-direction: column;
  }

  .copy-row .core-button {
    width: 100%;
  }

  .modal-backdrop {
    align-items: end;
    padding: 0.6rem;
  }

  .modal-card,
  .modal-card-wide {
    width: 100%;
    max-height: 92dvh;
    border-radius: 1.35rem;
  }
}