:root {
  --bg: #F6F3EE;
  --bg-soft: #EEE7DE;
  --panel: #ffffff;
  --line: #C6B8AA;
  --text: #1F2933;
  --muted: #5A6772;
  --accent: #2F455A;
  --accent-hover: #24384A;
  --accent-2: #2F9E64;
  --green: #2F9E64;
  --yellow: #D3911A;
  --red: #D05B52;
  --purple: #7c3aed;
  --topbar: #EEE7DE;
  --card-alt: #F3EDE5;
  --radius: 14px;
  --shadow-soft: 0 8px 20px rgba(31, 42, 54, 0.08);
  --shadow-card: 0 12px 26px rgba(31, 42, 54, 0.12);
  --glow: rgba(47, 69, 90, 0.08);
  --bg-glow-2: rgba(31, 42, 54, 0.05);
  --focus-ring: rgba(44, 62, 80, 0.3);
  --font-ui: "Manrope", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-body: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;

  /* Motion tokens */
  --motion-fast: 120ms;
  --motion-normal: 180ms;
  --motion-slow: 240ms;
  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-emphasized: cubic-bezier(0.2, 0.9, 0.3, 1);
}

.brand-link {
  color: var(--accent);
}

/* Motion utilities */
.u-transition-soft {
  transition-property: transform, opacity, box-shadow, background-color, border-color, color;
  transition-duration: var(--motion-normal);
  transition-timing-function: var(--ease-standard);
}

.u-pressable {
  transform: translateY(0);
}

.u-pressable:hover {
  transform: translateY(-1px);
}

.u-pressable:active {
  transform: translateY(1px);
}

.u-fade-in {
  opacity: 0;
  transform: translateY(4px);
}

.u-fade-in.is-in-view {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--motion-normal) var(--ease-standard),
              transform var(--motion-normal) var(--ease-standard);
}

.u-fade-in-up {
  opacity: 0;
  transform: translateY(10px);
}

.u-fade-in-up.is-in-view {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--motion-normal) var(--ease-emphasized),
              transform var(--motion-normal) var(--ease-emphasized);
}

.navbar-toggler-icon-custom {
  filter: invert(20%) sepia(10%) saturate(1000%) hue-rotate(170deg);
}

.account-menu {
  min-width: 220px;
}

.app-toast-container {
  z-index: 9999;
}

html[data-theme="dark"] {
  --bg: #111315;
  --bg-soft: #171A1D;
  --panel: #1C2126;
  --line: #3C434B;
  --text: #F3F5F7;
  --muted: #B2BBC4;
  --accent: #9EC1FF;
  --accent-hover: #84AEFF;
  --accent-2: #2F9E64;
  --green: #2F9E64;
  --yellow: #D3911A;
  --red: #D05B52;
  --purple: #a78bfa;
  --topbar: #171A1D;
  --card-alt: #252B31;
  --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.3);
  --shadow-card: 0 12px 28px rgba(0, 0, 0, 0.42);
  --glow: rgba(255, 255, 255, 0.03);
  --bg-glow-2: rgba(255, 255, 255, 0.02);
  --focus-ring: rgba(158, 193, 255, 0.35);
}

* {
  box-sizing: border-box;
}

/* Universal text color fixes - ensure all text is visible in both themes */
html,
body,
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6,
p,
li,
dd,
dt,
span,
a,
button,
input,
select,
textarea,
option,
label {
  color: var(--text);
}

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-family: var(--font-body);
  background-image:
    radial-gradient(60rem 60rem at 10% -10%, var(--glow), transparent 50%),
    radial-gradient(40rem 40rem at 90% 10%, var(--bg-glow-2), transparent 45%);
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--font-ui);
}

button,
.btn,
input,
select,
textarea,
label,
.navbar,
.nav-pill,
.dropdown-item,
.user-chip,
.table thead th,
.form-label,
.form-text,
.small,
.badge,
.panel-header h2,
.panel-header h3 {
  font-family: var(--font-ui);
}

code,
pre,
kbd,
samp {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

main.container {
  flex: 1 0 auto;
}

.container.app-main-shell {
  max-width: min(1080px, calc(100vw - 8rem)) !important;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

/* Large desktop scaling (1440p and above) */
@media (min-width: 1400px) {
  html {
    font-size: 17px;
  }

  .container.app-main-shell {
    max-width: min(1500px, calc(100vw - 3rem)) !important;
  }

  .page-subtitle,
  .form-text,
  .small,
  .text-muted {
    font-size: 0.92rem;
  }
}

/* Ultra-wide desktop scaling */
@media (min-width: 1920px) {
  html {
    font-size: 18px;
  }

  .container.app-main-shell {
    max-width: min(1760px, calc(100vw - 4rem)) !important;
  }
}

.top-shell {
  position: sticky;
  top: 0;
  z-index: 1030;
}

.eros-nav {
  background: var(--topbar);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(44, 62, 80, 0.15);
}

.app-nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

@media (min-width: 992px) {
  .eros-nav > .container.app-main-shell {
    display: grid !important;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
  }

  .eros-nav .navbar-collapse {
    display: contents !important;
  }

  .nav-main-row {
    display: contents !important;
  }

  .app-nav-links {
    grid-column: 2;
    justify-content: center;
  }

  .nav-utility-cluster {
    grid-column: 3;
    justify-self: end;
  }
}

.nav-utility-cluster {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
}

.nav-account-dropdown {
  flex: 0 0 auto;
  width: auto;
}

.nav-streak-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2rem;
  padding: 0.34rem 0.75rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--yellow) 38%, var(--line) 62%);
  background: color-mix(in srgb, #fff4df 72%, var(--panel) 28%);
  color: var(--text);
  text-decoration: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
  transition: transform var(--motion-fast) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard),
              border-color var(--motion-normal) var(--ease-standard),
              background-color var(--motion-normal) var(--ease-standard);
}

.nav-streak-chip:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--yellow) 55%, var(--line) 45%);
  box-shadow: 0 8px 18px rgba(211, 145, 26, 0.14);
  transform: translateY(-1px);
}

.nav-streak-chip:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--yellow) 30%, transparent 70%);
}

.nav-streak-chip__label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav-streak-chip__value {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.65rem;
  height: 1.65rem;
  padding: 0 0.4rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #f8c15c 0%, #d3911a 100%);
  color: #1f1a14;
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1;
}

html[data-theme="dark"] .nav-streak-chip {
  background: color-mix(in srgb, #41331a 74%, var(--panel) 26%);
  border-color: color-mix(in srgb, var(--yellow) 48%, var(--line) 52%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.nav-pill {
  color: var(--text);
  text-decoration: none;
  border-radius: 999px;
  padding: 0.35rem 0.55rem;
  font-size: 0.85rem;
  transition: background-color var(--motion-normal) var(--ease-standard),
              color var(--motion-normal) var(--ease-standard),
              border-color var(--motion-normal) var(--ease-standard),
              transform var(--motion-fast) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard);
  white-space: nowrap;
  border: 1px solid transparent;
  display: inline-block;
  background: transparent;
  font-weight: 500;
}

.nav-pill:hover {
  color: var(--accent);
  background: color-mix(in srgb, var(--card-alt) 70%, var(--panel) 30%);
  border-color: color-mix(in srgb, var(--line) 56%, transparent 44%);
}

.nav-pill:active {
  transform: scale(0.98);
}

.nav-pill.active {
  background: color-mix(in srgb, var(--accent) 80%, #7aa2d6 20%);
  color: #fff !important;
  font-weight: 600;
  border-color: rgba(0, 0, 0, 0.08);
}

.nav-pill.active:hover {
  color: #fff !important;
  background: color-mix(in srgb, var(--accent-hover) 82%, #7aa2d6 18%);
}

.nav-pill.active:focus {
  color: #fff !important;
  box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.2);
}

.nav-pill:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.account-menu-btn {
  justify-content: center;
  min-width: 9.5rem;
}

@media (min-width: 992px) {
  .nav-utility-cluster {
    flex-wrap: nowrap;
  }
}

@media (max-width: 576px) {
  .app-nav-links {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    margin-top: 0.5rem !important;
    margin-bottom: 0.75rem !important;
  }

  .nav-pill {
    padding: 0.5rem 0.8rem;
    font-size: 0.8rem;
    flex: 0 0 auto;
    text-align: center;
  }

  .nav-utility-cluster {
    width: 100%;
    justify-content: stretch !important;
  }

  .nav-account-dropdown {
    width: 100%;
  }

  .nav-streak-chip {
    width: 100%;
    justify-content: space-between;
    padding: 0.5rem 0.8rem;
  }

  .navbar-collapse {
    padding-top: 0.5rem;
  }

  .navbar-collapse .ms-auto {
    width: 100%;
    margin-left: 0 !important;
    justify-content: flex-end;
  }

  .navbar-collapse .btn {
    width: 100%;
    text-align: left;
    font-size: 0.8rem;
  }

  .navbar-collapse form {
    width: 100%;
  }

  .navbar-collapse form .btn {
    width: 100%;
  }
}

.brand-logo {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  box-shadow: 0 6px 14px rgba(44, 62, 80, 0.2);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.theme-toggle .theme-icon {
  font-size: 0.9rem;
}

.user-chip {
  border: 1px solid var(--line);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  color: var(--text);
  font-size: 0.8rem;
}

/* Navbar-specific adjustments: present the user label inline without a white box */
.eros-nav #accountDropdown {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0.15rem 0.35rem;
}
.eros-nav #accountDropdown .user-chip {
  border: none;
  padding: 0;
  background: transparent;
  color: var(--text);
}
.eros-nav #accountDropdown:focus {
  box-shadow: none;
}

/* ---------------------------------------------------------------------------
   Ensure critical UI text is readable in both light and dark themes
   Targeted selectors (headings, nav pills, table cells, badges, dropdown items)
   --------------------------------------------------------------------------- */
.card .card-body h1,
.card .card-body h2,
.card .card-body h3,
.card .card-body h4,
.card .card-body h5,
.card .card-body h6,
.card .card-body p,
.card .card-body a,
.nav-pills-shell .nav-pill,
.table th,
.table td,
.badge,
.panel-header h2,
.page-title,
.page-subtitle,
.metric-label,
.metric-value {
  color: var(--text);
}

/* Keep `.text-muted` lighter intentionally but ensure minimum contrast */
.text-muted {
  color: var(--muted);
  opacity: 1;
}


.btn-eros {
  background: var(--accent);
  color: #fff;
  border: 1px solid color-mix(in srgb, var(--accent) 86%, #000 14%);
  font-weight: 600;
  transition: background-color var(--motion-normal) var(--ease-standard),
              border-color var(--motion-normal) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard),
              transform var(--motion-fast) var(--ease-standard);
}

.btn-eros:hover {
  background: var(--accent-hover);
  color: #fff;
}

/* Bootstrap Button Variants - Ensure text visibility */
.btn-light {
  background: var(--card-alt);
  color: var(--text);
  border-color: var(--line);
  transition: background-color var(--motion-normal) var(--ease-standard),
              border-color var(--motion-normal) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard),
              transform var(--motion-fast) var(--ease-standard);
}

.btn-light:hover {
  background: var(--bg-soft);
  color: var(--text);
  border-color: color-mix(in srgb, var(--line) 72%, var(--accent) 28%);
}

.btn-outline-primary,
.btn-outline-secondary {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 72%, var(--line) 28%);
  transition: background-color var(--motion-normal) var(--ease-standard),
              border-color var(--motion-normal) var(--ease-standard),
              color var(--motion-normal) var(--ease-standard),
              transform var(--motion-fast) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard);
}

.btn-outline-primary:hover,
.btn-outline-secondary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-eros-muted {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
}

.btn-eros-muted:hover {
  background: var(--card-alt);
  border-color: color-mix(in srgb, var(--line) 72%, var(--accent) 28%);
  color: var(--text);
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform var(--motion-normal) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard),
              border-color var(--motion-normal) var(--ease-standard),
              background-color var(--motion-normal) var(--ease-standard);
}

.card:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 44px rgba(40, 51, 63, 0.16);
}

.card .card-body {
  background: var(--panel);
}

html[data-theme="dark"] .card .card-body {
  background: var(--panel);
}

.card .card-body {
  background: var(--panel);
}

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

.page-title {
  font-size: 1.55rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.page-subtitle {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-style: italic;
}

html[data-theme="dark"] .page-subtitle {
  color: var(--muted);
}

/* --- Metrics --- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.metrics-grid-7 {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

/* --- Dashboard hero --- */
.dashboard-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 1rem;
}

.dashboard-hero-card {
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

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

.hero-value {
  font-size: 2.6rem;
  font-weight: 700;
}

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

.dashboard-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem 1.3rem;
  box-shadow: var(--shadow-card);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

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

.deck-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.deck-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(40, 51, 63, 0.16);
}

/* Ensure deck card headings are readable in all themes */
.deck-card .card-body,
.deck-card h3 {
  color: var(--text);
}

/* Responsive deck cards grid */
@media (max-width: 768px) {
  .deck-card {
    transform: none !important;
  }

  .deck-card .card-body {
    padding: 0.9rem;
  }

  .deck-card .d-flex.justify-content-between {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }

  .deck-card h3 {
    font-size: 0.95rem;
  }
}

@media (max-width: 576px) {
  .deck-card .card-body {
    padding: 0.85rem;
  }

  .deck-card h3 {
    font-size: 0.9rem;
  }

  .deck-card p {
    font-size: 0.8rem;
    margin-bottom: 0.75rem !important;
  }

  .deck-card .state-badges {
    margin-bottom: 0.75rem !important;
  }

  .deck-card .d-flex.gap-2 {
    gap: 0.4rem !important;
    width: 100%;
  }

  .deck-card .btn {
    flex: 1;
    font-size: 0.75rem;
    padding: 0.4rem 0.5rem;
    min-height: 40px;
  }

  .deck-card .dropdown-menu {
    font-size: 0.85rem;
  }
}

@media (max-width: 991px) {
  .dashboard-hero {
    grid-template-columns: 1fr;
  }

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

.metric {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem 0.95rem;
}

.metric-accent {
  border-left: 3px solid var(--accent);
}

.metric-green {
  border-left: 3px solid var(--green);
}

.metric-yellow {
  border-left: 3px solid var(--yellow);
}

.metric-red {
  border-left: 3px solid var(--red);
}

.metric-label {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.metric-value {
  font-weight: 700;
  font-size: 1.2rem;
}

.metric-value-sm {
  font-size: 0.95rem;
}

/* --- Tables --- */
.table thead th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: color-mix(in srgb, var(--muted) 85%, var(--text) 15%);
  border-bottom-color: var(--line);
  background: var(--card-alt);
  border-top: 1px solid var(--line);
}

.table tbody tr {
  color: var(--text);
}

.table td {
  vertical-align: middle;
  border-color: var(--line);
  color: var(--text);
}

.card-content-cell {
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Responsive tables - stack on mobile */
@media (max-width: 768px) {
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .table {
    min-width: 600px;
  }

  .card-content-cell {
    max-width: 150px;
  }
}

@media (max-width: 576px) {
  /* Hide table on very small screens and show card layout instead */
  .table {
    font-size: 0.8rem;
  }

  .table thead {
    display: none;
  }

  .table tbody,
  .table tr,
  .table td {
    display: block;
    width: 100%;
  }

  .table tr {
    border-bottom: 2px solid var(--line);
    margin-bottom: 1rem;
    padding: 0.75rem 0;
    border-radius: 8px;
    background: var(--panel);
    border: 1px solid var(--line);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  }

  .table td {
    padding: 0.5rem 0 !important;
    border: none;
    position: relative;
    padding-left: 40% !important;
  }

  .table td::before {
    content: attr(data-label);
    position: absolute;
    left: 0.75rem;
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
    width: 35%;
  }

  .table td:first-child {
    padding-left: 0.75rem !important;
  }

  .table td:first-child::before {
    display: none;
  }

  .card-content-cell {
    max-width: 100%;
    word-break: break-word;
    white-space: normal;
  }

  .card-content-cell::before {
    content: attr(data-label);
  }
}

/* --- Forms --- */
.form-control,
.form-select {
  border-radius: 10px;
  border-color: var(--line);
  background-color: var(--panel);
  color: var(--text);
  transition: border-color var(--motion-normal) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard),
              background-color var(--motion-normal) var(--ease-standard),
              color var(--motion-normal) var(--ease-standard);
}

.form-control::placeholder {
  color: var(--muted);
  opacity: 0.85;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 0.2rem var(--focus-ring);
  color: var(--text);
}

html[data-theme="dark"] .form-control,
html[data-theme="dark"] .form-select {
  background-color: color-mix(in srgb, var(--panel) 92%, #000 8%);
  border-color: var(--line);
  color: var(--text);
}

html[data-theme="dark"] .form-control::placeholder {
  color: var(--muted);
  opacity: 0.8;
}

/* Ensure labels are readable */
label,
.form-label {
  color: var(--text);
}

.btn-eros-muted {
  background: var(--panel);
}

html[data-theme="dark"] .btn-eros-muted {
  background: var(--panel);
}

.form-text,
.text-muted {
  color: var(--muted);
  font-style: italic;
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--topbar);
  padding: 1.1rem 0 0.8rem;
  margin-top: auto;
  flex-shrink: 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-note {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.25;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 0.95rem;
  font-size: 0.82rem;
}

.footer-links a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.8;
}

.footer-links a:hover {
  color: var(--accent);
  opacity: 1;
}

.footer-bottom {
  margin-top: 0.65rem;
  color: var(--muted);
  font-size: 0.74rem;
}

/* --- Heatmap --- */
.heatmap-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.heatmap-week {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.heatmap-labels {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.heatmap-label {
  text-align: center;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1rem;
  /* Ensure horizontal rendering across browsers (Firefox fix) */
  writing-mode: horizontal-tb;
  text-orientation: mixed;
  white-space: nowrap;
  display: inline-block;
}

.dropdown-menu .icon {
  width: 20px;
  display: inline-block;
  text-align: center;
}

.dropdown-item .icon {
  margin-right: 8px;
}

/* Ensure dropdowns inherit the app theme colors so text is visible in dark mode */
.dropdown-menu {
  background: var(--panel) !important;
  color: var(--text) !important;
  border: 1px solid var(--line) !important;
  box-shadow: 0 10px 24px rgba(2,6,23,0.16);
  transition: opacity var(--motion-normal) var(--ease-standard),
              transform var(--motion-normal) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard);
}
.dropdown-menu .dropdown-item {
  color: var(--text) !important;
}
.dropdown-menu .dropdown-item:hover,
.dropdown-menu .dropdown-item:focus {
  background: color-mix(in srgb, var(--card-alt) 78%, var(--accent) 22%);
  color: var(--text) !important;
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.dropdown-item:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}
.dropdown-divider {
  border-top-color: var(--line) !important;
}

.heatmap-cell {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 6px;
  background: var(--card-alt);
  border: 1px solid color-mix(in srgb, var(--accent) 10%, transparent);
}

.heatmap-cell.level-1 { background: color-mix(in srgb, var(--accent) 20%, var(--card-alt) 80%); }
.heatmap-cell.level-2 { background: color-mix(in srgb, var(--accent) 36%, var(--card-alt) 64%); }
.heatmap-cell.level-3 { background: color-mix(in srgb, var(--accent) 54%, var(--card-alt) 46%); }
.heatmap-cell.level-4 { background: color-mix(in srgb, var(--accent) 72%, var(--card-alt) 28%); }

html[data-theme="dark"] .heatmap-cell {
  border-color: color-mix(in srgb, var(--accent) 16%, transparent);
  background: color-mix(in srgb, var(--panel) 94%, #fff 6%);
}
html[data-theme="dark"] .heatmap-cell.level-1 { background: color-mix(in srgb, var(--accent) 22%, var(--panel) 78%); }
html[data-theme="dark"] .heatmap-cell.level-2 { background: color-mix(in srgb, var(--accent) 38%, var(--panel) 62%); }
html[data-theme="dark"] .heatmap-cell.level-3 { background: color-mix(in srgb, var(--accent) 56%, var(--panel) 44%); }
html[data-theme="dark"] .heatmap-cell.level-4 { background: color-mix(in srgb, var(--accent) 74%, var(--panel) 26%); }

/* --- Confetti --- */
.confetti-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 2000;
}

.confetti-piece {
  position: absolute;
  width: 8px;
  height: 12px;
  opacity: 0.9;
  animation: confetti-fall 1.8s ease-out forwards;
}

@keyframes confetti-fall {
  0% { transform: translateY(-20px) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  100% { transform: translateY(110vh) rotate(320deg); opacity: 0; }
}

/* --- Skeletons --- */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--card-alt);
  border-radius: 12px;
}

.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  animation: shimmer 1.6s infinite;
}

html[data-theme="dark"] .skeleton::after {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
}

.skeleton-line {
  height: 12px;
  margin-bottom: 10px;
}

.skeleton-card {
  padding: 1.2rem;
  border: 1px dashed var(--line);
}

@keyframes shimmer {
  100% { transform: translateX(100%); }
}

/* --- Review --- */
.review-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  background: linear-gradient(180deg, var(--panel) 0%, var(--card-alt) 100%);
}

html[data-theme="dark"] .review-card {
  background: linear-gradient(180deg, var(--panel) 0%, color-mix(in srgb, var(--card-alt) 86%, #000 14%) 100%);
}

.review-card.revealed {
  border-color: var(--accent);
}

.review-content {
  font-size: 1.1rem;
  line-height: 1.6;
  min-height: 60px;
}

.review-content code,
.card-content-cell code {
  background: color-mix(in srgb, var(--card-alt) 84%, var(--accent) 16%);
  padding: 0.1rem 0.3rem;
  border-radius: 6px;
  font-size: 0.9em;
}

.review-content pre,
.card-content-cell pre {
  background: color-mix(in srgb, var(--card-alt) 84%, var(--accent) 16%);
  padding: 0.75rem;
  border-radius: 10px;
  overflow: auto;
}

.review-content ul,
.review-content ol {
  padding-left: 1.2rem;
  margin-bottom: 0.75rem;
}

html[data-theme="dark"] .review-content code,
html[data-theme="dark"] .card-content-cell code,
html[data-theme="dark"] .review-content pre,
html[data-theme="dark"] .card-content-cell pre {
  background: color-mix(in srgb, var(--card-alt) 82%, var(--accent) 18%);
}

.rating-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
}

.rating-actions .btn {
  padding: 0.7rem 0.45rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.1rem;
  line-height: 1.2;
}

.rating-actions .rating-label {
  font-size: 0.95rem;
  font-weight: 700;
}

.rating-actions .rating-interval {
  font-size: 0.78rem;
  font-weight: 500;
}

.rating-actions .rating-hotkey {
  font-size: 0.74rem;
  font-weight: 600;
  opacity: 0.9;
}

/* --- Cloze --- */
.cloze-answer {
  background: color-mix(in srgb, var(--green) 20%, var(--panel) 80%);
  color: color-mix(in srgb, var(--green) 72%, var(--text) 28%);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-weight: 600;
}

html[data-theme="dark"] .cloze-answer {
  background: color-mix(in srgb, var(--green) 26%, var(--panel) 74%);
  color: color-mix(in srgb, var(--green) 82%, #ffffff 18%);
}

/* --- Paper --- */
.paper-preview {
  max-height: 220px;
  overflow: auto;
  white-space: pre-wrap;
  background: var(--card-alt);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.6rem;
  font-size: 0.82rem;
}

.paper-content-full {
  white-space: normal;
  background: var(--card-alt);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
  font-size: 0.9rem;
  max-height: 600px;
  overflow-y: auto;
}

/* Paper inner formatting – cap heading sizes to stay proportional */
.paper-content-full h2, .paper-preview h2 {
  font-size: 1.05rem;
  margin: 0.8rem 0 0.4rem 0;
  font-weight: 700;
}
.paper-content-full h3, .paper-preview h3 {
  font-size: 0.95rem;
  margin: 0.6rem 0 0.35rem 0;
  font-weight: 700;
}
.paper-content-full h4, .paper-preview h4 {
  font-size: 0.9rem;
  margin: 0.5rem 0 0.3rem 0;
  font-weight: 700;
}

.paper-section {
  color: var(--muted);
  letter-spacing: 0.02em;
}

.paper-gap { height: 0.8rem; }

.paper-question { margin: 0.5rem 0; display: flex; gap: 0.6rem; align-items: flex-start; }
.paper-question .q-badge {
  display: inline-block;
  min-width: 38px;
  text-align: center;
  background: var(--accent);
  color: #fff;
  padding: 0.18rem 0.45rem;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
}
.paper-question .q-body { flex: 1; font-size: 0.9rem; line-height: 1.55; }

.paper-list { margin: 0.25rem 0 0.8rem 1rem; }
.paper-list li { margin: 0.25rem 0; }
.paper-list.numbered { list-style-type: decimal; }

.paper-content-full p { margin: 0 0 0.6rem 0; }
.paper-content-full ul, .paper-content-full ol { margin: 0 0 0.8rem 1rem; }


@media (max-width: 768px) {
  .paper-preview {
    max-height: 150px;
    font-size: 0.75rem;
    padding: 0.5rem;
  }

  .paper-content-full {
    max-height: 400px;
    font-size: 0.85rem;
    padding: 0.75rem;
  }

  .row.g-4 {
    gap: 0.75rem !important;
  }
}

@media (max-width: 576px) {
  .paper-preview {
    max-height: 120px;
    font-size: 0.7rem;
  }

  .paper-content-full {
    max-height: 300px;
    font-size: 0.8rem;
  }

  .d-flex.justify-content-between {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .d-flex.gap-1 {
    flex-wrap: wrap;
  }

  .d-flex.gap-1 .btn {
    flex: 1 1 auto;
    min-width: 60px;
    font-size: 0.7rem;
  }
}

/* --- Exam Mode --- */
.exam-question-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
  transition: border-color var(--motion-normal) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard),
              background-color var(--motion-normal) var(--ease-standard);
}

.exam-question-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.08);
}

.exam-question-box .q-number {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.78rem;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.exam-question-box .q-text {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text);
  margin-bottom: 0.6rem;
}

.exam-question-box textarea {
  border: 1px solid var(--line);
  border-radius: 8px;
  resize: vertical;
  font-size: 0.9rem;
  width: 100%;
  min-height: 80px;
  padding: 0.6rem 0.8rem;
  transition: border-color var(--motion-normal) var(--ease-standard),
              box-shadow var(--motion-normal) var(--ease-standard),
              background-color var(--motion-normal) var(--ease-standard);
  background: var(--bg);
  color: var(--text);
}

.exam-question-box textarea::placeholder {
  color: var(--muted);
}

.exam-question-box textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(44, 62, 80, 0.1);
  background: var(--bg);
  color: var(--text);
}

html[data-theme="dark"] .exam-question-box:focus-within {
  box-shadow: 0 0 0 3px rgba(158, 193, 255, 0.12);
}

html[data-theme="dark"] .exam-question-box textarea:focus {
  box-shadow: 0 0 0 2px rgba(158, 193, 255, 0.15);
}

/* Paper content in dark mode */
html[data-theme="dark"] .paper-content-full,
html[data-theme="dark"] .paper-preview {
  color: var(--text);
}

html[data-theme="dark"] .paper-content-full h2,
html[data-theme="dark"] .paper-content-full h3,
html[data-theme="dark"] .paper-content-full h4,
html[data-theme="dark"] .paper-content-full p,
html[data-theme="dark"] .paper-content-full li,
html[data-theme="dark"] .paper-content-full span,
html[data-theme="dark"] .paper-preview h2,
html[data-theme="dark"] .paper-preview h3,
html[data-theme="dark"] .paper-preview h4,
html[data-theme="dark"] .paper-preview p,
html[data-theme="dark"] .paper-preview li,
html[data-theme="dark"] .paper-preview span {
  color: var(--text);
}

html[data-theme="dark"] .paper-question .q-body,
html[data-theme="dark"] .paper-question .q-body * {
  color: var(--text);
}

/* ── Adaptive exam answer widgets ─────────────────────── */

/* MCQ / multi-select options */
.exam-options {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.3rem;
}

.exam-option {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--ease-standard),
              border-color var(--motion-fast) var(--ease-standard),
              box-shadow var(--motion-fast) var(--ease-standard);
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.4;
}

.exam-option:hover {
  background: var(--bg-soft);
  border-color: var(--accent);
}

.exam-option.selected {
  background: color-mix(in srgb, var(--accent) 10%, var(--bg) 90%);
  border-color: var(--accent);
}

.exam-option input[type="radio"],
.exam-option input[type="checkbox"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  margin: 0;
  flex-shrink: 0;
}

.option-label {
  font-weight: 700;
  min-width: 1.4rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.option-text {
  flex: 1;
}

/* True / False toggle pair */
.exam-tf {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.3rem;
}

.exam-tf-btn {
  flex: 1;
  justify-content: center;
  text-align: center;
  padding: 0.65rem 1rem;
  font-weight: 600;
  border-radius: 10px;
}

.exam-tf-btn input[type="radio"] {
  display: none;
}

.tf-label {
  font-size: 0.95rem;
}

.true-label { color: var(--green); }
.false-label { color: var(--red); }

.exam-tf-btn.selected .true-label,
.exam-tf-btn.selected .false-label {
  color: #fff;
}

.exam-tf-btn.selected:has(.true-label) {
  background: var(--green);
  border-color: var(--green);
}

.exam-tf-btn.selected:has(.false-label) {
  background: var(--red);
  border-color: var(--red);
}

/* Matching / ordering */
.exam-word-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.word-bank-chip {
  display: inline-block;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.2rem 0.55rem;
  font-size: 0.82rem;
  color: var(--text);
}

.exam-matching-grid {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.3rem;
}

.matching-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.matching-label {
  font-weight: 700;
  min-width: 2.2rem;
  font-size: 0.9rem;
  color: var(--text);
}

.matching-input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.4rem 0.65rem;
  font-size: 0.9rem;
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--motion-fast) var(--ease-standard),
              box-shadow var(--motion-fast) var(--ease-standard),
              background-color var(--motion-fast) var(--ease-standard);
}

.matching-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(44, 62, 80, 0.1);
}

.matching-input::placeholder { color: var(--muted); }

/* Fill-in-the-blank */
.exam-fill-blanks {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.3rem;
}

.fill-blank-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.fill-blank-label {
  font-size: 0.85rem;
  color: var(--muted);
  min-width: 4rem;
  white-space: nowrap;
}

.fill-blank-input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.4rem 0.65rem;
  font-size: 0.9rem;
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--motion-fast) var(--ease-standard),
              box-shadow var(--motion-fast) var(--ease-standard),
              background-color var(--motion-fast) var(--ease-standard);
}

.fill-blank-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(44, 62, 80, 0.1);
}

.fill-blank-input::placeholder { color: var(--muted); }

/* Dark mode overrides for adaptive widgets */
html[data-theme="dark"] .exam-option.selected {
  background: color-mix(in srgb, var(--accent) 15%, var(--panel) 85%);
}

html[data-theme="dark"] .matching-input:focus,
html[data-theme="dark"] .fill-blank-input:focus {
  box-shadow: 0 0 0 2px rgba(158, 193, 255, 0.15);
}

/* exam navigation & single-question view */
.exam-question-box.hidden { display: none; }
.exam-nav { display: inline-flex; align-items: center; gap: 0.5rem; }
.exam-nav #exam-counter { min-width: 120px; text-align: center; display: inline-block; }
.exam-nav button { padding: 0.2rem 0.6rem; line-height: 1; }

/* --- Deck card --- */
.deck-card {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.deck-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(44, 62, 80, 0.10);
}

/* --- State badges --- */
.state-badges {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

/* --- Progress bar --- */
.progress {
  border-radius: 999px;
  background: var(--bg-soft);
}

.progress-bar {
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.3s ease;
}

/* --- AI review --- */
.ai-review-card {
  transition: border-color 0.2s;
}

.ai-review-card:hover {
  border-color: color-mix(in srgb, var(--line) 55%, var(--accent) 45%);
}

.source-highlight {
  background: color-mix(in srgb, var(--yellow) 24%, var(--panel) 76%);
  border-color: var(--line) !important;
  cursor: pointer;
  transition: background 0.2s;
}

.source-highlight:hover {
  background: color-mix(in srgb, var(--yellow) 36%, var(--panel) 64%);
}

html[data-theme="dark"] .source-highlight {
  background: color-mix(in srgb, var(--yellow) 20%, var(--panel) 80%);
}

html[data-theme="dark"] .source-highlight:hover {
  background: color-mix(in srgb, var(--yellow) 28%, var(--panel) 72%);
}

/* --- Purple badge for cloze --- */
.bg-purple-subtle {
  background-color: color-mix(in srgb, var(--purple) 18%, var(--panel) 82%) !important;
}

html[data-theme="dark"] .bg-purple-subtle {
  background-color: color-mix(in srgb, var(--purple) 16%, var(--panel) 84%) !important;
}

.text-purple-emphasis {
  color: var(--purple) !important;
}

/* Bootstrap Text Background Utilities - Dark Mode Overrides */
.text-bg-light {
  background-color: var(--card-alt) !important;
  color: var(--text) !important;
  border-color: var(--line) !important;
}

.text-bg-dark {
  background-color: var(--panel) !important;
  color: var(--text) !important;
}

.text-bg-primary {
  background-color: var(--accent) !important;
  color: #fff !important;
}

.text-bg-success {
  background-color: var(--green) !important;
  color: #fff !important;
}

.text-bg-danger {
  background-color: var(--red) !important;
  color: #fff !important;
}

.text-bg-warning {
  background-color: var(--yellow) !important;
  color: #000 !important;
}

.text-bg-info {
  background-color: var(--accent) !important;
  color: #fff !important;
}

/* Ensure ALL small/small text elements have proper color */
small,
.small {
  color: var(--text);
}

/* Keep text-muted color consistent */
.text-muted,
.form-text {
  color: var(--muted) !important;
}

/* Bootstrap Utilities: Alert & Badge Dark Mode Overrides */
.alert-success,
.alert-info,
.alert-warning,
.alert-danger {
  color: var(--text);
  border-color: var(--line);
}

html[data-theme="dark"] .alert-success {
  background-color: color-mix(in srgb, var(--green) 14%, var(--panel) 86%);
  border-color: color-mix(in srgb, var(--green) 34%, var(--line) 66%);
  color: color-mix(in srgb, var(--green) 84%, #fff 16%);
}

html[data-theme="dark"] .alert-danger {
  background-color: color-mix(in srgb, var(--red) 14%, var(--panel) 86%);
  border-color: color-mix(in srgb, var(--red) 34%, var(--line) 66%);
  color: color-mix(in srgb, var(--red) 86%, #fff 14%);
}

html[data-theme="dark"] .alert-warning {
  background-color: color-mix(in srgb, var(--yellow) 14%, var(--panel) 86%);
  border-color: color-mix(in srgb, var(--yellow) 34%, var(--line) 66%);
  color: color-mix(in srgb, var(--yellow) 82%, #fff 18%);
}

html[data-theme="dark"] .alert-info {
  background-color: color-mix(in srgb, var(--accent) 14%, var(--panel) 86%);
  border-color: color-mix(in srgb, var(--accent) 34%, var(--line) 66%);
  color: color-mix(in srgb, var(--accent) 84%, #fff 16%);
}

/* Text utility colors dark mode */
.text-success {
  color: var(--green) !important;
}

html[data-theme="dark"] .text-success {
  color: color-mix(in srgb, var(--green) 85%, #fff 15%) !important;
}

.text-danger {
  color: var(--red) !important;
}

html[data-theme="dark"] .text-danger {
  color: color-mix(in srgb, var(--red) 86%, #fff 14%) !important;
}

.text-warning {
  color: var(--yellow) !important;
}

html[data-theme="dark"] .text-warning {
  color: color-mix(in srgb, var(--yellow) 84%, #fff 16%) !important;
}

.text-info {
  color: var(--accent) !important;
}

html[data-theme="dark"] .text-info {
  color: var(--accent) !important;
}

/* --- Library layout --- */
.library-two-col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1.25rem;
  align-items: start;
}

.library-col-right {
  position: sticky;
  top: 5.5rem;
}

@media (max-width: 991.98px) {
  .library-two-col {
    grid-template-columns: 1fr;
  }
  .library-col-right {
    order: -1;
    position: static;
  }
}

@media (min-width: 1400px) {
  .library-two-col {
    grid-template-columns: 1fr 360px;
  }
}

/* --- Library stats --- */
.lib-stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-soft);
}

.lib-stat-card--accent {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--panel));
}

.lib-stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.lib-stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  line-height: 1;
}

.library-file-trigger {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.18rem;
}

.library-file-trigger.is-previewable {
  cursor: pointer;
}

.library-file-trigger.is-disabled {
  cursor: default;
}

.library-file-trigger__name {
  display: block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
  color: var(--text);
}

.library-file-trigger.is-previewable .library-file-trigger__name {
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent);
  text-underline-offset: 0.14em;
}

.library-file-trigger__meta {
  font-size: 0.75rem;
  color: var(--muted);
}

.library-preview-overlay {
  position: fixed;
  inset: 0;
  z-index: 1080;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background:
    radial-gradient(circle at top, rgba(15, 118, 110, 0.22), transparent 38%),
    rgba(15, 23, 42, 0.62);
  backdrop-filter: blur(8px);
}

.library-preview-shell {
  width: min(1100px, 96vw);
  height: min(88vh, 860px);
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--line) 80%, white 20%);
  background: var(--panel);
  box-shadow: 0 28px 80px rgba(15, 23, 42, 0.32);
  overflow: hidden;
}

.library-preview-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem 0.85rem;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 8%, var(--panel) 92%), var(--panel));
}

.library-preview-eyebrow {
  margin: 0 0 0.2rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.library-preview-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.library-preview-subtitle {
  margin: 0.28rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.library-preview-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.library-preview-status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0.75rem 1.1rem;
  border-bottom: 1px solid var(--line);
  background: var(--card-alt);
}

.library-preview-body {
  flex: 1;
  min-height: 0;
  background: color-mix(in srgb, var(--panel) 92%, black 8%);
}

.library-preview-frame-shell {
  width: 100%;
  height: 100%;
}

.library-preview-frame {
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

.library-preview-empty-state,
.library-preview-audio-shell {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.9rem;
  padding: 1.5rem;
  text-align: center;
}

.library-preview-empty-title,
.library-preview-audio-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.library-preview-empty-copy,
.library-preview-audio-copy {
  margin: 0;
  max-width: 48rem;
  color: var(--muted);
}

.library-preview-audio-icon {
  width: 88px;
  height: 88px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, var(--panel) 88%);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line) 78%);
  font-size: 2rem;
}

.library-preview-audio-player {
  width: min(680px, 100%);
}

@media (max-width: 767.98px) {
  .library-preview-overlay {
    padding: 0.65rem;
  }

  .library-preview-shell {
    width: 100%;
    height: min(92vh, 920px);
    border-radius: 16px;
  }

  .library-preview-header {
    flex-direction: column;
  }

  .library-preview-actions {
    width: 100%;
    justify-content: flex-end;
  }
}

/* --- Study page --- */
.study-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  width: 100%;
}

.study-header-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  margin-left: auto;
  justify-content: flex-end;
}

.session-builder-card .form-label {
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.session-minutes-input {
  max-width: 120px;
}

.study-gencards-modal-backdrop {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.45);
  z-index: 1100;
  padding: 1rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--motion-normal) var(--ease-standard),
              transform var(--motion-normal) var(--ease-standard);
}

.study-gencards-modal {
  width: min(460px, 96vw);
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.28);
  padding: 1rem;
}

.study-gencards-modal-backdrop.is-visible {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.study-gencards-title {
  font-weight: 700;
  font-size: 1.03rem;
  margin-bottom: 0.15rem;
}

.study-gencards-sub {
  color: var(--muted);
  font-size: 0.86rem;
  margin-bottom: 0.7rem;
}

.study-gencards-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.65rem;
}

.study-gencards-option {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  padding: 0.28rem 0.7rem;
  font-size: 0.82rem;
  color: var(--text);
  cursor: pointer;
}

.study-gencards-option.active {
  background: rgba(37, 99, 235, 0.14);
  border-color: rgba(37, 99, 235, 0.35);
  color: #1d4ed8;
  font-weight: 600;
}

.study-gencards-status {
  min-height: 1.2rem;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.study-gencards-progress {
  display: none;
  height: 8px;
  width: 100%;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card-alt);
  overflow: hidden;
  margin-bottom: 0.65rem;
}

.study-gencards-progress.is-active {
  display: block;
}

.study-gencards-progress-bar {
  width: 34%;
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
  transform: translateX(-120%);
}

.study-gencards-progress.is-active .study-gencards-progress-bar {
  animation: study-gencards-slider 1.25s ease-in-out infinite;
}

@keyframes study-gencards-slider {
  0% {
    transform: translateX(-120%);
  }

  100% {
    transform: translateX(320%);
  }
}

.study-gencards-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* --- Study session focus mode --- */
.study-focus-mode .top-shell,
.study-focus-mode .site-footer,
.study-focus-mode .study-quick-actions,
.study-focus-mode .sidebar,
.study-focus-mode [class*="sidebar"] {
  display: none !important;
}

.study-focus-mode .app-main-shell {
  max-width: 100% !important;
  padding-top: 0 !important;
}

.focus-mode-exit {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1040;
}

.focus-mode-shell {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 3rem 1rem;
}

.focus-mode-content {
  width: min(1280px, 100%);
  margin: 0 auto;
}

/* --- Study generation status --- */
.study-generating-wrap {
  max-width: 640px;
  margin: 3rem auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.study-generating-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--text);
}

.study-generating-sub {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 0.9rem;
}

.study-generating-progress {
  height: 10px;
  width: 100%;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card-alt);
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.study-generating-progress-bar {
  width: 32%;
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
  transform: translateX(-120%);
  animation: study-generating-slider 1.2s ease-in-out infinite;
}

.study-generating-status {
  min-height: 1.25rem;
  font-size: 0.84rem;
  color: var(--muted);
}

.study-generating-actions {
  margin-top: 0.9rem;
  display: none;
  gap: 0.5rem;
}

.study-generating-actions.is-visible {
  display: flex;
}

@keyframes study-generating-slider {
  0% {
    transform: translateX(-120%);
  }

  100% {
    transform: translateX(320%);
  }
}

/* Badge backgrounds dark mode */
.bg-success-subtle,
.bg-danger-subtle,
.bg-warning-subtle,
.bg-info-subtle {
  color: var(--text);
}

html[data-theme="dark"] .bg-success-subtle {
  background-color: color-mix(in srgb, var(--green) 16%, var(--panel) 84%) !important;
}

html[data-theme="dark"] .text-success-emphasis {
  color: color-mix(in srgb, var(--green) 84%, #fff 16%) !important;
}

html[data-theme="dark"] .bg-danger-subtle {
  background-color: color-mix(in srgb, var(--red) 16%, var(--panel) 84%) !important;
}

html[data-theme="dark"] .text-danger-emphasis {
  color: color-mix(in srgb, var(--red) 86%, #fff 14%) !important;
}

html[data-theme="dark"] .bg-warning-subtle {
  background-color: color-mix(in srgb, var(--yellow) 16%, var(--panel) 84%) !important;
}

html[data-theme="dark"] .text-warning-emphasis {
  color: color-mix(in srgb, var(--yellow) 84%, #fff 16%) !important;
}

html[data-theme="dark"] .bg-info-subtle {
  background-color: color-mix(in srgb, var(--accent) 16%, var(--panel) 84%) !important;
}

html[data-theme="dark"] .text-info-emphasis {
  color: var(--accent) !important;
}

/* --- Auth --- */
.auth-wrap {
  min-height: calc(100vh - 160px);
  display: grid;
  place-items: center;
}

.auth-card {
  width: min(520px, 100%);
}

/* --- Toast --- */
.toast-container .toast {
  min-width: 280px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* --- Spinner overlay --- */
.spinner-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
}

html[data-theme="dark"] .spinner-overlay {
  background: rgba(19, 20, 21, 0.85);
}

/* --- Responsive --- */
/* Tablet (max 991px) */
@media (max-width: 991px) {
  .study-header {
    align-items: stretch;
  }

  .study-header-actions {
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
  }

  .study-header-actions .btn {
    flex: 1 1 180px;
  }

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

  .metrics-grid-7 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .rating-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-pills-shell {
    justify-content: center;
  }

  .page-title {
    font-size: 1.25rem;
  }

  .dashboard-hero-card {
    padding: 1.2rem;
  }

  .hero-value {
    font-size: 2rem;
  }

  .mini-metrics {
    grid-template-columns: 1fr;
  }

  .panel-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .heatmap-cell {
    width: 100%;
  }
}

/* Mobile tablets (max 768px) */
@media (max-width: 768px) {
  body {
    font-size: 0.95rem;
  }

  .page-header {
    flex-direction: column;
    gap: 1rem;
  }

  .page-header div:last-child {
    width: 100%;
  }

  .page-header .btn {
    flex: 1;
  }

  .page-title {
    font-size: 1.15rem;
  }

  .page-subtitle {
    font-size: 0.85rem;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
    margin-bottom: 0.75rem;
  }

  .metrics-grid-7 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric {
    padding: 0.7rem 0.8rem;
  }

  .metric-label {
    font-size: 0.65rem;
  }

  .metric-value {
    font-size: 1rem;
  }

  .dashboard-hero {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .dashboard-hero-card {
    padding: 1rem;
  }

  .hero-value {
    font-size: 1.8rem;
  }

  .dashboard-hero-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-bottom: 1rem;
  }

  .dashboard-panel {
    padding: 1rem;
  }

  .panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
  }

  .panel-header div {
    width: 100%;
  }

  .panel-header .badge {
    align-self: flex-start;
  }

  .mini-metrics {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    margin-top: 0.75rem;
  }

  .heatmap-week {
    gap: 4px;
  }

  .heatmap-cell {
    border-radius: 4px;
  }

  .rating-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.6rem;
  }

  .rating-actions .btn {
    padding: 0.65rem 0.4rem;
    font-size: 0.8rem;
    min-height: 48px;
  }

  .rating-actions .rating-label {
    font-size: 0.88rem;
  }

  .rating-actions .rating-interval {
    font-size: 0.72rem;
  }

  .rating-actions .rating-hotkey {
    font-size: 0.68rem;
  }

  .review-card {
    padding: 0.8rem;
  }

  .review-content {
    font-size: 0.95rem;
    line-height: 1.5;
    min-height: auto;
  }

  .progress {
    height: 4px !important;
  }

  .form-control,
  .form-select {
    font-size: 1rem;
    min-height: 44px;
  }

  .btn {
    min-height: 44px;
  }

  .card-content-cell {
    max-width: 100%;
    overflow-x: auto;
  }

  .table {
    font-size: 0.85rem;
  }

  .table thead th {
    padding: 0.5rem;
    font-size: 0.65rem;
  }

  .table td {
    padding: 0.75rem 0.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 1rem;
  }

  .footer-links {
    width: 100%;
    justify-content: center;
  }
}

/* Small phones (max 576px) */
@media (max-width: 576px) {
  body {
    font-size: 0.9rem;
  }

  .page-header {
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
  }

  .page-header div:last-child {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  .page-header .btn {
    width: auto;
    font-size: 0.85rem;
  }

  .page-title {
    font-size: 1rem;
  }

  .page-subtitle {
    font-size: 0.75rem;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
    margin-bottom: 0.5rem;
  }

  .metrics-grid-7 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric {
    padding: 0.6rem 0.7rem;
  }

  .metric-label {
    font-size: 0.6rem;
    letter-spacing: 0.02em;
  }

  .metric-value {
    font-size: 0.9rem;
  }

  .metric-value-sm {
    font-size: 0.8rem;
  }

  .dashboard-hero {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .dashboard-hero-card {
    padding: 0.9rem;
  }

  .dashboard-hero-card .metric-label {
    font-size: 0.65rem;
  }

  .hero-value {
    font-size: 1.5rem;
    margin: 0.3rem 0;
  }

  .dashboard-hero-card p {
    font-size: 0.8rem;
    margin-bottom: 0.75rem !important;
  }

  .dashboard-hero-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
  }

  .dashboard-panel {
    padding: 0.85rem;
  }

  .panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    margin-bottom: 0.6rem;
  }

  .panel-header h2 {
    font-size: 0.9rem;
    margin-bottom: 0.2rem !important;
  }

  .panel-header p {
    font-size: 0.75rem;
    margin: 0;
  }

  .mini-metrics {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    margin-top: 0.6rem;
  }

  .heatmap-week {
    gap: 3px;
  }

  /* Keep weekday initials on a single horizontal row on small screens */
  .heatmap-labels {
    display: flex;
    gap: 6px;
    justify-content: space-between;
    overflow-x: auto;
  }
  .heatmap-label {
    min-width: 18px;
    text-align: center;
    white-space: nowrap;
    font-size: 0.65rem;
  }

  .heatmap-cell {
    border-radius: 3px;
    border: none;
  }

  .progress {
    height: 3px !important;
    margin-bottom: 0.6rem !important;
  }

  .rating-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
  }

  .rating-actions .btn {
    padding: 0.5rem 0.3rem;
    font-size: 0.7rem;
    min-height: 44px;
    gap: 0.05rem;
  }

  .rating-actions .rating-label {
    font-size: 0.8rem;
  }

  .rating-actions .rating-interval {
    font-size: 0.67rem;
  }

  .rating-actions .rating-hotkey {
    font-size: 0.63rem;
  }

  .review-card {
    padding: 0.7rem;
    border-radius: 12px;
  }

  .review-content {
    font-size: 0.9rem;
    line-height: 1.4;
    min-height: auto;
    margin-bottom: 0.75rem !important;
  }

  .review-card h2 {
    font-size: 0.95rem;
    margin-bottom: 0.5rem !important;
  }

  .review-card h3 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem !important;
  }

  .review-card hr {
    margin: 0.5rem 0;
  }

  .card {
    box-shadow: 0 4px 12px rgba(40, 51, 63, 0.1);
  }

  .card-body {
    padding: 0.8rem 0.9rem;
  }

  .form-control,
  .form-select {
    font-size: 0.95rem;
    min-height: 44px;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
  }

  .btn {
    min-height: 44px;
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
  }

  .btn-sm {
    min-height: 40px;
    font-size: 0.75rem;
    padding: 0.4rem 0.6rem;
  }

  .table {
    font-size: 0.8rem;
    margin-bottom: 0;
  }

  .table thead th {
    padding: 0.4rem 0.3rem;
    font-size: 0.6rem;
    white-space: nowrap;
  }

  .table td {
    padding: 0.6rem 0.3rem;
    word-break: break-word;
  }

  .table-responsive {
    font-size: 0.8rem;
  }

  .card-content-cell {
    max-width: 150px;
    word-break: break-word;
  }

  .eros-nav {
    padding: 0.5rem 0;
  }

  .brand-logo {
    width: 24px;
    height: 24px;
  }

  .user-chip {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
  }

  .nav-pills-shell {
    gap: 0.2rem;
    padding: 0.25rem;
    border-radius: 16px;
  }

  .nav-pill {
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
  }

  .navbar-toggler {
    padding: 0.25rem 0.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    padding: 0 0.5rem;
  }

  .footer-note {
    font-size: 0.75rem;
    text-align: center;
  }

  .footer-links {
    width: 100%;
    justify-content: center;
    gap: 0.75rem;
    font-size: 0.8rem;
  }

  .footer-bottom {
    font-size: 0.7rem;
    text-align: center;
  }

  .state-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 0.75rem !important;
  }

  .state-badges .badge {
    font-size: 0.65rem;
    padding: 0.25rem 0.5rem;
  }

  .deck-card .d-flex.gap-2 {
    gap: 0.4rem !important;
  }

  .deck-card .btn {
    flex: 1;
    font-size: 0.75rem;
    padding: 0.4rem 0.5rem;
  }
}

/* Ultra-small phones (max 480px) */
@media (max-width: 480px) {
  .page-header {
    gap: 0.5rem;
    margin-bottom: 0.5rem;
  }

  .page-title {
    font-size: 0.95rem;
  }

  .page-subtitle {
    display: none;
  }

  .metrics-grid {
    gap: 0.3rem;
    margin-bottom: 0.4rem;
  }

  .hero-value {
    font-size: 1.3rem;
  }

  .dashboard-hero-card p {
    display: none;
  }

  .dashboard-hero-card .d-flex {
    gap: 0.3rem !important;
  }

  .dashboard-hero-card .btn {
    font-size: 0.7rem;
    padding: 0.4rem;
    flex: 1;
  }

  .rating-actions {
    gap: 0.4rem;
  }

  .rating-actions .btn {
    font-size: 0.65rem;
  }

  .rating-actions .rating-label {
    font-size: 0.75rem;
  }

  .rating-actions .rating-interval {
    font-size: 0.62rem;
  }

  .rating-actions .rating-hotkey {
    font-size: 0.58rem;
  }
}