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

:root {
  --bg: #f5f0e8;
  --bg-soft: #fcfaf6;
  --panel: rgba(255, 252, 246, 0.9);
  --panel-strong: #fffdf9;
  --paper: #f2ece2;
  --ink: #1f1a17;
  --ink-soft: #62554b;
  --ink-faint: #8a7b6d;
  --line: rgba(73, 54, 38, 0.16);
  --line-strong: rgba(54, 35, 20, 0.75);
  --accent: #aa2d1f;
  --accent-soft: #f4d7cf;
  --accent-gold: #c28b38;
  --shadow-lg: 0 26px 60px rgba(62, 36, 14, 0.12);
  --shadow-md: 0 14px 34px rgba(62, 36, 14, 0.09);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font-sc: 'Noto Sans SC', 'DM Sans', 'Segoe UI', sans-serif;
  --safe-b: max(0px, env(safe-area-inset-bottom, 0px));
  --tap-min: 46px;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font-sc);
  color: var(--ink);
  line-height: 1.6;
  background:
    radial-gradient(circle at top left, rgba(194, 139, 56, 0.18), transparent 32%),
    linear-gradient(180deg, #fbf7f1 0%, #f4ede3 52%, #efe6da 100%);
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;
}

.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.page-bg__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(12px);
  opacity: 0.45;
}

.page-bg__orb--one {
  top: -10rem;
  right: -6rem;
  width: 26rem;
  height: 26rem;
  background: radial-gradient(circle, rgba(170, 45, 31, 0.22), transparent 68%);
}

.page-bg__orb--two {
  left: -8rem;
  bottom: 15%;
  width: 22rem;
  height: 22rem;
  background: radial-gradient(circle, rgba(194, 139, 56, 0.18), transparent 72%);
}

.page-bg__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(97, 74, 53, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(97, 74, 53, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 88%);
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.18;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.78' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.42'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.anchor-target {
  height: 0;
  overflow: hidden;
  scroll-margin-top: 5.5rem;
  pointer-events: none;
}

.lesson-card--schedule {
  scroll-margin-top: 5.5rem;
}

.top-bar {
  position: sticky;
  top: 0;
  z-index: 6;
  backdrop-filter: blur(18px);
  background: rgba(251, 247, 241, 0.78);
  border-bottom: 1px solid rgba(73, 54, 38, 0.08);
}

.top-bar__inner,
.desk-nav,
.page {
  max-width: 1180px;
  margin: 0 auto;
}

.top-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  padding: 0.5rem 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
  flex: 1;
}

.brand__mark {
  width: 2.9rem;
  height: 2.9rem;
  flex-shrink: 0;
  border-radius: 0.85rem;
  overflow: hidden;
  background: #f7f2ea;
  border: 1px solid rgba(73, 54, 38, 0.12);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 10px 22px rgba(62, 36, 14, 0.12);
}

.brand__mark-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.02) grayscale(0.08);
}

.brand__meta {
  min-width: 0;
}

.brand__eyebrow,
.panel-shell__eyebrow,
.hero-panel__eyebrow,
.quick__eyebrow,
.chip-row__label,
.next__label,
.golden__label,
.lesson-detail__h,
.tag-block__h {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand__eyebrow {
  color: var(--accent);
}

.brand__title {
  margin: 0;
  font-size: clamp(0.98rem, 2.5vw, 1.42rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.top-bar__aside {
  width: min(100%, 240px);
}

.top-bar__aside-label {
  margin: 0 0 0.12rem;
  font-size: 0.7rem;
  color: var(--ink-faint);
}

.inst-select,
.status-select,
.quick__input,
.inp {
  width: 100%;
  min-height: var(--tap-min);
  border: 1px solid rgba(86, 62, 40, 0.15);
  border-radius: 14px;
  background: rgba(255, 252, 247, 0.96);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
  padding: 0.68rem 0.9rem;
  font: inherit;
  color: var(--ink);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.inst-select:focus,
.status-select:focus,
.quick__input:focus,
.inp:focus {
  outline: none;
  border-color: rgba(170, 45, 31, 0.46);
  box-shadow: 0 0 0 4px rgba(170, 45, 31, 0.08);
}

.desk-nav {
  display: none;
  padding: 0 1.25rem 0.95rem;
}

.desk-nav__btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.75rem;
  min-height: 2.8rem;
  padding: 0 1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.desk-nav__btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 252, 246, 0.7);
  border-color: rgba(73, 54, 38, 0.08);
}

.desk-nav__btn.is-active {
  background: linear-gradient(180deg, rgba(170, 45, 31, 0.12), rgba(170, 45, 31, 0.06));
  color: var(--ink);
  border-color: rgba(170, 45, 31, 0.12);
}

.desk-nav__btn.is-active span::after {
  content: '';
  display: block;
  width: 60%;
  height: 3px;
  margin: 0.35rem auto 0;
  border-radius: 999px;
  background: var(--accent);
}

.page {
  position: relative;
  z-index: 1;
  padding: 0.95rem 1.25rem calc(5.2rem + var(--safe-b));
}

.view.hidden {
  display: none;
}

.banner {
  margin: 0 0 1rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(170, 45, 31, 0.18);
  box-shadow: var(--shadow-md);
}

.banner--err {
  color: #7f2318;
  background: rgba(255, 239, 236, 0.95);
}

.panel-shell,
.card,
.quick,
.inst-list,
.tag-block {
  backdrop-filter: blur(14px);
}

.hero-panel__eyebrow,
.panel-shell__eyebrow,
.quick__eyebrow,
.next__label,
.golden__label,
.lesson-detail__h,
.tag-block__h {
  color: var(--accent);
}

.card,
.panel-shell {
  border: 1px solid rgba(76, 54, 32, 0.08);
  border-radius: var(--radius-xl);
  background: var(--panel);
  box-shadow: var(--shadow-lg);
}

.card__body {
  padding: 1.15rem;
}

.card--main .card__body,
.card--side .card__body {
  padding: 1.2rem;
}

.dashboard-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.7rem;
}

.dashboard-head__inst {
  min-width: 11rem;
  padding: 0.8rem 0.9rem;
  border-radius: 16px;
  background: rgba(249, 243, 235, 0.86);
  border: 1px solid rgba(73, 54, 38, 0.08);
}

.dashboard-head__label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.76rem;
  color: var(--ink-faint);
}

.dashboard-head__value {
  display: block;
  font-size: 1rem;
}

.inst-select-wrap {
  width: 100%;
}

.inst-select-wrap .inst-select {
  width: 100%;
  max-width: 100%;
}

.panel-shell__inst {
  flex-shrink: 0;
  min-width: 11rem;
  padding: 0.8rem 0.9rem;
  border-radius: 16px;
  background: rgba(249, 243, 235, 0.86);
  border: 1px solid rgba(73, 54, 38, 0.08);
}

.card__h,
.panel-shell__title {
  margin: 0;
  font-size: clamp(1.08rem, 2vw, 1.38rem);
  line-height: 1.2;
}

.card__muted,
.panel-shell__desc,
.toolbar__muted,
.panel-block__muted,
.lesson-card__sum,
.inst-li__sub,
.tag,
.muted {
  color: var(--ink-soft);
}

.card__muted,
.panel-shell__desc {
  margin: 0.55rem 0 0;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.25rem 0 0.9rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.34rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(73, 54, 38, 0.1);
  font-size: 0.82rem;
}

.next {
  display: grid;
  gap: 0.8rem;
}

.golden {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(250, 245, 238, 0.86), rgba(255, 252, 248, 0.92));
  border: 1px solid rgba(73, 54, 38, 0.06);
}

.golden__list {
  margin: 0.8rem 0 0;
  padding-left: 1.2rem;
}

.golden__list li + li {
  margin-top: 0.5rem;
}

.panel-shell {
  padding: 1.15rem;
}

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

.toolbar--schedule {
  margin-bottom: 1.2rem;
}

.quick {
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(86, 62, 40, 0.09);
  background: linear-gradient(180deg, rgba(255, 254, 251, 0.95), rgba(246, 238, 229, 0.92));
  box-shadow: var(--shadow-md);
}

.quick__intro {
  margin-bottom: 0.9rem;
}

.quick__title {
  margin: 0.35rem 0 0;
  font-size: 1.08rem;
}

.quick__input {
  margin-bottom: 0.8rem;
}

.quick__row2 {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.8rem;
  align-items: end;
}

.quick__lab {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.quick__btn,
.btn {
  min-height: var(--tap-min);
  padding: 0 1.1rem;
  border: 1px solid rgba(119, 34, 24, 0.88);
  border-radius: 14px;
  background: linear-gradient(180deg, #b83a2b 0%, #96271b 100%);
  color: #fffaf7;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 22px rgba(150, 39, 27, 0.2);
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.quick__btn:hover,
.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 26px rgba(150, 39, 27, 0.24);
  filter: saturate(1.04);
}

.btn--ghost {
  background: rgba(255, 252, 247, 0.95);
  color: var(--ink);
  border-color: rgba(86, 62, 40, 0.15);
  box-shadow: none;
}

.lesson-stack {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  padding-bottom: 1.2rem;
}

.lesson-stack__empty,
.lesson-stack__loading,
.lesson-stack__hint {
  margin: 0;
}

.lesson-stack__hint-sub {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  word-break: break-word;
}

.lesson-stack__hint-sub code {
  font-size: 0.85em;
}

.lesson-stack__err {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-weight: 700;
}

.lesson-card {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(76, 54, 32, 0.08);
  background: var(--panel-strong);
  box-shadow: var(--shadow-md);
}

.lesson-card__cover {
  position: relative;
  margin: 0;
  min-height: 6.5rem;
  background:
    linear-gradient(135deg, rgba(170, 45, 31, 0.1), rgba(194, 139, 56, 0.14)),
    linear-gradient(180deg, #e8ddcf, #f3ebdf);
}

.lesson-card__cover::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(34, 22, 15, 0.24));
  pointer-events: none;
}

.lesson-card__cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 4.4;
  object-fit: cover;
  filter: saturate(0.76) contrast(0.92) brightness(1.02);
}

.lesson-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.85rem 1rem;
  padding: 0.95rem 1rem 0.68rem;
}

.lesson-card__title-block {
  flex: 1;
  min-width: 0;
}

.lesson-card__date {
  margin: 0 0 0.3rem;
  color: var(--ink-faint);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.lesson-card__h {
  margin: 0;
  font-size: clamp(1.02rem, 2.2vw, 1.28rem);
  line-height: 1.3;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  margin-top: 0.6rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(194, 139, 56, 0.25);
  background: rgba(194, 139, 56, 0.08);
  color: #7a5218;
  font-size: 0.78rem;
  font-weight: 600;
}

.status-select {
  width: auto;
  min-width: 6.3rem;
}

.lesson-card__sum {
  margin: 0;
  padding: 0 1rem;
  font-size: 0.92rem;
  line-height: 1.72;
}

.tags,
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.lesson-card .tags,
.tag-cloud {
  padding: 0.8rem 1rem 0;
}

.tag-mini,
.tags__i,
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.85rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(73, 54, 38, 0.09);
  background: rgba(247, 241, 233, 0.86);
  font-size: 0.75rem;
}

.lesson-card__body {
  padding: 0.9rem 1rem 1rem;
}

.lesson-card__fold {
  border-top: 1px solid rgba(73, 54, 38, 0.08);
}

.lesson-card__fold-summary {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  cursor: pointer;
  padding: 0.75rem 1rem;
  background: linear-gradient(180deg, rgba(247, 241, 233, 0.86), rgba(255, 253, 248, 0.92));
}

.lesson-card__fold-summary::-webkit-details-marker {
  display: none;
}

.lesson-card__fold-label {
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.lesson-card__fold-meta {
  color: var(--ink-faint);
  font-size: 0.82rem;
}

.lesson-card__fold[open] > .lesson-card__fold-summary {
  border-bottom: 1px solid rgba(73, 54, 38, 0.08);
}

.lesson-reflection {
  margin: 0.65rem 1rem 0.85rem;
  padding: 0.85rem 1rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(73, 54, 38, 0.1);
  background: linear-gradient(165deg, rgba(255, 252, 248, 0.98), rgba(241, 234, 224, 0.45));
}

.lesson-card--dash .lesson-reflection {
  margin: 0.65rem 0 1rem;
}

.lesson-reflection__h {
  margin: 0 0 0.5rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.lesson-reflection__ta {
  display: block;
  width: 100%;
  max-width: 100%;
  min-height: 5.5rem;
  margin: 0 0 0.65rem;
  padding: 0.55rem 0.65rem;
  font: inherit;
  font-size: 0.92rem;
  line-height: 1.55;
  border: 1px solid rgba(73, 54, 38, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.75);
  resize: vertical;
}

.lesson-reflection__gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.65rem;
  min-height: 0;
}

.lesson-reflection__thumb {
  position: relative;
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(73, 54, 38, 0.1);
  background: rgba(0, 0, 0, 0.04);
}

.lesson-reflection__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.lesson-reflection__rm {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: rgba(20, 20, 20, 0.55);
  color: #fff;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.lesson-reflection__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.lesson-reflection__pick {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap-min, 44px);
  padding: 0.35rem 0.85rem;
  cursor: pointer;
  overflow: hidden;
}

.lesson-reflection__pick input.lesson-reflection__file {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  font-size: 0;
  width: 100%;
  height: 100%;
}

.lesson-reflection__pick-txt {
  pointer-events: none;
}

.lesson-reflection__status {
  font-size: 0.82rem;
  font-weight: 600;
  color: #2d6a4f;
}

.lesson-reflection__status:not([hidden]) {
  display: inline-block;
}

.lesson-reflection__tip {
  margin: 0.55rem 0 0;
  font-size: 0.78rem;
  line-height: 1.45;
}

.lesson-detail__meta {
  margin: 0 0 0.8rem;
  color: var(--ink-faint);
  font-size: 0.84rem;
}

.lesson-detail__block + .lesson-detail__block {
  margin-top: 0;
}

.lesson-detail__text {
  margin: 0.25rem 0 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.92rem;
  line-height: 1.78;
}

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

.lesson-detail__block {
  padding: 0.8rem 0.85rem;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(249, 244, 236, 0.86), rgba(255, 252, 248, 0.92));
  border: 1px solid rgba(73, 54, 38, 0.06);
}

.lesson-detail__block--minor {
  grid-column: 1 / -1;
  opacity: 0.86;
}

.calendar-board {
  margin-bottom: 1rem;
}

.calendar-shell {
  padding: 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(73, 54, 38, 0.08);
  background: linear-gradient(180deg, rgba(255, 252, 247, 0.94), rgba(247, 240, 232, 0.92));
  box-shadow: var(--shadow-md);
}

.calendar-shell__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.8rem 1rem;
  margin-bottom: 0.9rem;
}

.calendar-shell__eyebrow,
.calendar-month__eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.calendar-shell__title,
.calendar-month__title {
  margin: 0.2rem 0 0;
  font-size: 1.05rem;
}

.calendar-shell__desc {
  margin: 0;
  max-width: 34rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
}

.week-board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.week-chip {
  padding: 0.95rem;
  border-radius: 18px;
  border: 1px solid rgba(73, 54, 38, 0.08);
  background: rgba(255, 253, 249, 0.92);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.76);
}

a.week-chip--link {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    border-color 0.15s ease;
}

a.week-chip--link:hover {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.76),
    0 8px 20px rgba(62, 36, 14, 0.1);
  border-color: rgba(170, 45, 31, 0.22);
}

a.week-chip--link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

a.week-chip--link:active {
  transform: translateY(0);
}

.week-chip__eyebrow {
  margin: 0;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.week-chip__title {
  margin: 0.4rem 0 0;
  font-size: 1rem;
  line-height: 1.35;
}

.week-chip__date {
  margin: 0.55rem 0 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.week-chip__status {
  display: inline-flex;
  align-items: center;
  min-height: 1.85rem;
  margin-top: 0.8rem;
  padding: 0.18rem 0.65rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.week-chip--planned {
  background: linear-gradient(180deg, rgba(255, 247, 244, 0.96), rgba(252, 241, 236, 0.94));
}

.week-chip--planned .week-chip__status {
  background: rgba(170, 45, 31, 0.12);
  color: #9a2d20;
}

.week-chip--done {
  background: linear-gradient(180deg, rgba(243, 250, 244, 0.96), rgba(236, 248, 239, 0.94));
}

.week-chip--done .week-chip__status {
  background: rgba(47, 138, 85, 0.16);
  color: #2f8a55;
}

.week-chip--skipped {
  background: linear-gradient(180deg, rgba(245, 243, 241, 0.96), rgba(240, 237, 234, 0.94));
}

.week-chip--skipped .week-chip__status {
  background: rgba(127, 113, 103, 0.14);
  color: #7f7167;
}

.form-grid {
  display: grid;
  gap: 0.9rem;
  max-width: 40rem;
}

.form-grid label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.form-grid label.full {
  grid-column: 1 / -1;
}

textarea.inp {
  min-height: 5rem;
  resize: vertical;
}

.inst-list {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0.55rem;
}

.inst-li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 253, 249, 0.92);
}

.inst-li + .inst-li {
  margin-top: 0.6rem;
}

.inst-li__title {
  font-size: 1rem;
  font-weight: 700;
}

.tag-block {
  margin-top: 1rem;
  padding: 1rem 1.05rem 1.1rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(73, 54, 38, 0.08);
  background: rgba(255, 253, 249, 0.92);
}

.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 8;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.35rem;
  padding: 0.6rem 0.75rem calc(0.6rem + var(--safe-b));
  border-top: 1px solid rgba(73, 54, 38, 0.08);
  background: rgba(251, 247, 241, 0.9);
  backdrop-filter: blur(18px);
}

.bottom-nav__btn {
  min-height: var(--tap-min);
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-weight: 600;
}

.bottom-nav__btn.is-active {
  color: var(--ink);
  background: rgba(170, 45, 31, 0.1);
  border-color: rgba(170, 45, 31, 0.1);
}

.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;
}

@media (min-width: 760px) {
  .desk-nav {
    display: block;
  }

  .bottom-nav {
    display: none;
  }

  .page {
    padding-bottom: 2.25rem;
  }
}

@media (max-width: 680px) {
  .top-bar__inner,
  .desk-nav,
  .page {
    padding-left: 0.95rem;
    padding-right: 0.95rem;
  }

  .panel-shell,
  .card__body,
  .quick,
  .lesson-card__head,
  .lesson-card__body,
  .lesson-card__sum,
  .lesson-card .tags,
  .lesson-card__fold-summary {
    padding-left: 0.95rem;
    padding-right: 0.95rem;
  }

  .brand__eyebrow {
    display: none;
  }

  .top-bar__inner {
    gap: 0.45rem 0.75rem;
    padding-top: 0.42rem;
    padding-bottom: 0.42rem;
  }

  .brand {
    gap: 0.62rem;
  }

  .brand__mark {
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 0.72rem;
  }

  .brand__title {
    font-size: 0.9rem;
    line-height: 1.02;
  }

  .quick__row2 {
    grid-template-columns: 1fr;
  }

  .lesson-card__head {
    flex-direction: column;
    align-items: stretch;
  }

  .status-select {
    width: 100%;
  }

  .lesson-detail {
    grid-template-columns: 1fr;
  }

  .calendar-shell__head {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-bar__aside {
    width: 100%;
  }

  .inst-select {
    min-height: 2.45rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }

  .dashboard-head {
    flex-direction: column;
  }

  .dashboard-head__inst {
    width: 100%;
    min-width: 0;
  }

  .panel-shell__head {
    flex-direction: column;
    align-items: stretch;
  }

  .panel-shell__inst {
    width: 100%;
    min-width: 0;
  }
}