:root {
  --ink: #14201d;
  --muted: #65716d;
  --line: #dfe6e2;
  --paper: #f7f8f4;
  --white: #ffffff;
  --green: #0d5d4a;
  --green-dark: #073d32;
  --gold: #d9a529;
  --coral: #c9654a;
  --blue: #1f5b83;
  --shadow: 0 24px 60px rgba(16, 32, 28, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

main {
  min-height: calc(100vh - 84px);
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  color: var(--white);
  background: rgba(7, 35, 29, 0.94);
  box-shadow: 0 12px 34px rgba(7, 20, 17, 0.16);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.hero-actions,
.course-tabs,
.trust-band,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.nav-links {
  gap: clamp(14px, 3vw, 32px);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  position: relative;
  padding: 10px 0;
  color: rgba(255, 255, 255, 0.76);
}

.nav-links a.is-active {
  color: var(--white);
}

.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 3px;
  border-radius: 999px;
  background: var(--gold);
}

.page {
  display: none;
}

.page.is-active {
  display: block;
}

.page.section {
  min-height: calc(100vh - 82px);
  padding-top: clamp(112px, 12vw, 150px);
}

.blank-page {
  min-height: calc(100vh - 82px);
  padding-top: 82px;
  background: var(--paper);
}

.header-action,
.primary-button,
.secondary-button,
.consult-form button {
  min-height: 46px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.header-action {
  border: 0;
  padding: 0 18px;
  background: var(--gold);
  color: #1f1807;
  cursor: pointer;
}

.hero {
  min-height: 94vh;
  position: relative;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 120px clamp(18px, 6vw, 80px) 60px;
}

.hero-page {
  background: var(--paper);
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(5, 16, 13, 0.88) 0%, rgba(5, 16, 13, 0.68) 39%, rgba(5, 16, 13, 0.08) 78%),
    linear-gradient(0deg, rgba(5, 16, 13, 0.38), rgba(5, 16, 13, 0.04));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  color: var(--white);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.18;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
}

.hero-copy {
  max-width: 650px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
  line-height: 1.75;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
}

.primary-button,
.secondary-button {
  border: 0;
  padding: 0 22px;
  cursor: pointer;
}

.primary-button {
  background: var(--gold);
  color: #1c1607;
}

.primary-button.dark {
  background: var(--green-dark);
  color: var(--white);
}

.secondary-button {
  border: 1px solid rgba(255, 255, 255, 0.48);
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 680px;
  margin: 46px 0 0;
}

.hero-stats div {
  min-height: 104px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
}

.hero-stats dt {
  font-size: 28px;
  font-weight: 800;
}

.hero-stats dd {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.trust-band {
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px;
  color: var(--green-dark);
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.page-support {
  margin-top: 24px;
}

.page-support article {
  background: var(--white);
  border-color: var(--line);
  color: var(--ink);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.page-support p {
  color: var(--muted);
}

.trust-band span {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

.section {
  padding: clamp(64px, 9vw, 120px) clamp(18px, 6vw, 80px);
}

.intro-grid,
.account-section,
.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.diagnostic-panel,
.dashboard-card,
.course-card,
.instructor-card,
.method-grid article,
.price-card,
.qna-form,
.qna-item,
.faq-section details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.diagnostic-panel {
  padding: 26px;
}

.panel-header {
  display: grid;
  gap: 6px;
  margin-bottom: 24px;
}

.panel-header span,
.course-topline span,
.price-card span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.panel-header strong {
  font-size: 26px;
}

.progress-list {
  display: grid;
  gap: 16px;
}

.progress-list span {
  position: relative;
  display: block;
  padding-bottom: 14px;
  color: var(--ink);
  font-weight: 800;
}

.progress-list span::before,
.progress-list span::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 7px;
  border-radius: 999px;
}

.progress-list span::before {
  width: 100%;
  background: #e9eee9;
}

.progress-list span::after {
  width: var(--value);
  background: linear-gradient(90deg, var(--green), var(--blue));
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading p:not(.eyebrow),
.account-copy p,
.pricing-copy p {
  color: var(--muted);
  line-height: 1.75;
}

.account-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.text-button,
.small-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--green-dark);
  cursor: pointer;
  font-weight: 800;
}

.text-button {
  min-height: 46px;
  padding: 0 18px;
}

.small-button {
  min-height: 36px;
  padding: 0 12px;
  font-size: 13px;
}

.dashboard-card {
  padding: 26px;
}

.dashboard-head,
.overall-progress > div:first-child,
.unit-item,
.unit-item label,
.instructor-card dl div,
.qna-item > div {
  display: flex;
  align-items: center;
}

.dashboard-head {
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.dashboard-head span,
.overall-progress span,
.unit-item span,
.instructor-card span,
.qna-item span,
.qna-item small {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.dashboard-head strong {
  display: block;
  margin-top: 6px;
  font-size: 22px;
}

.overall-progress {
  padding: 18px;
  border-radius: 8px;
  background: #f2f7f4;
}

.overall-progress > div:first-child {
  justify-content: space-between;
  margin-bottom: 12px;
}

.overall-progress strong {
  color: var(--green);
  font-size: 28px;
}

.meter {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #dce8e2;
}

.meter span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--blue));
  transition: width 180ms ease;
}

.unit-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.unit-item {
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.unit-item:last-child {
  border-bottom: 0;
}

.unit-item strong {
  display: block;
  margin-top: 4px;
}

.unit-item label {
  gap: 12px;
  min-width: 180px;
}

.unit-item output {
  min-width: 42px;
  color: var(--green-dark);
  font-weight: 800;
  text-align: right;
}

.unit-item input {
  width: 130px;
  accent-color: var(--green);
}

.course-tabs {
  gap: 8px;
  margin-bottom: 24px;
  overflow-x: auto;
}

.tab {
  min-width: 82px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--green-dark);
  background: var(--white);
  cursor: pointer;
  font-weight: 800;
}

.tab.is-active {
  color: var(--white);
  background: var(--green);
  border-color: var(--green);
}

.course-grid,
.method-grid,
.instructor-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.course-card {
  padding: 26px;
  transition: transform 180ms ease, box-shadow 180ms ease, opacity 180ms ease;
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.course-card.is-hidden {
  display: none;
}

.course-card.featured {
  border-color: rgba(13, 93, 74, 0.38);
  background: #f3fbf7;
}

.course-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 26px;
}

.course-topline strong {
  color: var(--green);
}

.course-card p,
.method-grid p,
.price-card p,
.faq-section p {
  color: var(--muted);
  line-height: 1.68;
}

.course-card ul {
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.course-card li {
  padding-left: 22px;
  position: relative;
  font-weight: 700;
}

.course-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--coral);
}

.method-section {
  background: var(--green-dark);
  color: var(--white);
}

.method-grid article {
  min-height: 230px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: none;
}

.method-grid span {
  display: block;
  margin-bottom: 42px;
  color: var(--gold);
  font-size: 28px;
  font-weight: 800;
}

.method-grid p {
  color: rgba(255, 255, 255, 0.76);
}

.page-support article {
  background: var(--white);
  border-color: var(--line);
  color: var(--ink);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.page-support p {
  color: var(--muted);
}

.instructors-section {
  background: #f0f5f1;
}

.instructor-card {
  padding: 26px;
}

.avatar {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 50%;
  background: var(--green);
  color: var(--white);
  font-weight: 800;
}

.avatar.blue {
  background: var(--blue);
}

.avatar.coral {
  background: var(--coral);
}

.instructor-card dl {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
}

.instructor-card dl div {
  justify-content: space-between;
  gap: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.instructor-card dt {
  color: var(--muted);
  font-weight: 800;
}

.instructor-card dd {
  margin: 0;
  font-weight: 800;
}

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

.price-card {
  padding: 28px;
}

.price-card strong {
  display: block;
  margin: 18px 0 10px;
  color: var(--green);
  font-size: 32px;
}

.price-card.emphasized {
  color: var(--white);
  background: var(--blue);
  border-color: var(--blue);
}

.price-card.emphasized span,
.price-card.emphasized strong,
.price-card.emphasized p {
  color: var(--white);
}

.qna-section {
  background: #f7f2ea;
}

.qna-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.qna-form {
  display: grid;
  gap: 14px;
  padding: 24px;
}

.qna-form label,
.auth-form label {
  display: grid;
  gap: 8px;
  color: var(--green-dark);
  font-weight: 800;
}

.qna-form input,
.qna-form select,
.qna-form textarea,
.auth-form input,
.auth-form select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 13px;
  color: var(--ink);
  background: var(--white);
}

.qna-form textarea {
  min-height: 130px;
  padding: 13px;
  resize: vertical;
}

.qna-form button,
.auth-form button[type="submit"] {
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  background: var(--green);
  color: var(--white);
  cursor: pointer;
  font-weight: 800;
}

.qna-list {
  display: grid;
  gap: 12px;
}

.qna-item {
  padding: 20px;
}

.qna-item > div {
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.qna-item strong {
  font-size: 18px;
}

.qna-item p {
  margin-bottom: 14px;
  color: var(--muted);
  line-height: 1.66;
}

.faq-section {
  background: var(--white);
}

.faq-section details {
  max-width: 900px;
  padding: 20px 22px;
  margin-bottom: 12px;
  box-shadow: none;
}

.faq-section summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 800;
}

.faq-section p {
  margin: 14px 0 0;
}

.consult-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 440px);
  gap: 36px;
  align-items: center;
  padding: clamp(52px, 8vw, 88px) clamp(18px, 6vw, 80px);
  color: var(--white);
  background: var(--green);
}

.consult-page {
  background: #eef5f0;
}

.consult-page .consult-section {
  border-radius: 8px;
}

.consult-section h2 {
  max-width: 780px;
  margin: 0;
}

.consult-form {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.consult-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.86);
  font-weight: 800;
}

.consult-form input,
.consult-form select {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  padding: 0 14px;
}

.auth-dialog {
  width: min(520px, calc(100vw - 32px));
  border: 0;
  border-radius: 8px;
  padding: 0;
  box-shadow: var(--shadow);
}

.auth-dialog::backdrop {
  background: rgba(7, 20, 17, 0.58);
}

.auth-form {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 30px;
  background: var(--white);
}

.auth-form h2 {
  margin-bottom: 4px;
  font-size: 30px;
}

.close-button {
  position: absolute;
  top: 16px;
  right: 16px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
}

.consult-form button {
  border: 0;
  background: var(--gold);
  color: #201806;
  cursor: pointer;
}

.site-footer {
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(18px, 6vw, 80px);
  color: var(--muted);
  background: #eef2ed;
}

@media (max-width: 920px) {
  .site-header {
    position: sticky;
    flex-wrap: wrap;
  }

  .nav-links {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .page.section {
    padding-top: 56px;
  }

  .hero {
    min-height: 900px;
    align-items: end;
  }

  .hero-shade {
    background:
      linear-gradient(0deg, rgba(5, 16, 13, 0.92) 0%, rgba(5, 16, 13, 0.72) 48%, rgba(5, 16, 13, 0.1) 100%);
  }

  .hero-stats,
  .intro-grid,
  .account-section,
  .split-section,
  .consult-section,
  .qna-layout,
  .course-grid,
  .method-grid,
  .instructor-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .unit-item {
    align-items: flex-start;
    flex-direction: column;
  }

  .unit-item label,
  .unit-item input {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 14px 16px;
  }

  .brand span:last-child,
  .header-action {
    font-size: 13px;
  }

  .hero {
    min-height: 820px;
    padding: 96px 18px 32px;
  }

  h1 {
    font-size: 39px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero-stats div {
    min-height: 86px;
  }

  .section {
    padding: 56px 18px;
  }

  .course-card,
  .diagnostic-panel,
  .dashboard-card,
  .instructor-card,
  .price-card {
    padding: 22px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

.classroom-page {
  background: #eef5f0;
}

.classroom-summary,
.classroom-card,
.empty-classroom {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.classroom-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
  gap: 16px;
  align-items: center;
  margin-bottom: 22px;
  padding: 22px;
}

.classroom-summary span,
.classroom-card-head span,
.classroom-meta {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.classroom-summary strong {
  display: block;
  margin-top: 6px;
  font-size: 24px;
}

.classroom-list {
  display: grid;
  gap: 18px;
}

.empty-classroom,
.classroom-card {
  padding: 24px;
}

.empty-classroom p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.classroom-card-head,
.classroom-meta,
.classroom-unit {
  display: flex;
  align-items: center;
}

.classroom-card-head {
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.classroom-card-head h3 {
  margin: 5px 0 0;
}

.classroom-card-head strong {
  color: var(--green);
  font-size: 34px;
}

.classroom-meta {
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.classroom-units {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.classroom-unit {
  justify-content: space-between;
  gap: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-weight: 800;
}

.classroom-unit span {
  min-width: 190px;
}

.classroom-unit input {
  width: min(320px, 45vw);
  accent-color: var(--green);
}

.classroom-unit output {
  min-width: 44px;
  text-align: right;
  color: var(--green-dark);
}

@media (max-width: 920px) {
  .classroom-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .classroom-card-head,
  .classroom-unit {
    flex-direction: column;
    align-items: flex-start;
  }

  .classroom-unit input {
    width: 100%;
  }
}

.lecture-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 0 24px 24px;
}

.lecture-card {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 0 18px;
  overflow: hidden;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.lecture-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.lecture-card strong {
  padding: 0 18px;
  font-size: 18px;
}

.lecture-image,
.detail-hero-image {
  display: grid;
  place-items: center;
  min-height: 180px;
  color: var(--white);
  background: linear-gradient(135deg, var(--green), var(--blue));
  font-size: 34px;
  font-weight: 800;
}

.lecture-image.macro,
.lecture-image.finance {
  background: linear-gradient(135deg, var(--blue), #487a92);
}

.lecture-image.data,
.lecture-image.case,
.lecture-image.paper {
  background: linear-gradient(135deg, var(--coral), var(--gold));
}

.lecture-image.hl,
.lecture-image.global,
.lecture-image.strategy {
  background: linear-gradient(135deg, var(--green-dark), var(--green));
}

.course-detail-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.detail-back {
  margin-bottom: 20px;
}

.detail-hero-image {
  min-height: 420px;
  border-radius: 8px;
}

.detail-copy {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.detail-buy {
  margin-top: 24px;
}

@media (max-width: 920px) {
  .lecture-gallery,
  .course-detail-layout {
    grid-template-columns: 1fr;
  }
}

.nav-group {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-group::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 10px;
}

.nav-group > button {
  min-height: 40px;
  border: 0;
  padding: 10px 0;
  color: rgba(255, 255, 255, 0.76);
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.nav-group:hover > button,
.nav-group:focus-within > button,
.nav-group > button.is-active {
  color: var(--white);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  z-index: 30;
  display: grid;
  min-width: 190px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(7, 35, 29, 0.98);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(6px);
  transition: opacity 140ms ease, transform 140ms ease;
  visibility: hidden;
}

.nav-group:hover .nav-dropdown,
.nav-group:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
  visibility: visible;
}

.nav-dropdown a {
  padding: 10px 12px;
  border-radius: 6px;
  white-space: nowrap;
}

.nav-dropdown a:hover,
.nav-dropdown a.is-active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.nav-links a.is-disabled {
  color: rgba(255, 255, 255, 0.32);
  cursor: not-allowed;
  pointer-events: auto;
}

.nav-links a.is-disabled::after {
  display: none;
}

@media (max-width: 920px) {
  .nav-group {
    position: relative;
    flex: 0 0 auto;
  }

  .nav-dropdown {
    left: 50%;
  }
}

/* Standard site navigation reset */
.site-header {
  overflow: visible;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  overflow: visible;
}

.nav-links > a,
.nav-group > button {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0;
  border: 0;
  color: rgba(255, 255, 255, 0.78);
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  white-space: nowrap;
}

.nav-links > a:hover,
.nav-links > a.is-active,
.nav-group:hover > button,
.nav-group:focus-within > button {
  color: var(--white);
}

.nav-links > a.is-active::after {
  bottom: -2px;
}

.nav-group {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0;
  margin: 0;
}

.nav-group::after {
  content: "";
  position: absolute;
  top: 100%;
  left: -12px;
  right: -12px;
  height: 14px;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  z-index: 100;
  display: grid;
  min-width: 188px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(7, 35, 29, 0.98);
  box-shadow: 0 18px 44px rgba(7, 20, 17, 0.24);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 140ms ease, transform 140ms ease, visibility 140ms ease;
  visibility: hidden;
}

.nav-group:hover .nav-dropdown,
.nav-group:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  visibility: visible;
}

.nav-dropdown a {
  display: block;
  padding: 11px 12px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.78);
  white-space: nowrap;
}

.nav-dropdown a:hover,
.nav-dropdown a.is-active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.nav-dropdown a.is-active::after {
  display: none;
}

.nav-links a.is-disabled {
  color: rgba(255, 255, 255, 0.34);
  cursor: not-allowed;
}

@media (max-width: 920px) {
  .nav-links {
    gap: 18px;
    overflow: visible;
    flex-wrap: wrap;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-group {
    position: relative;
  }

  .nav-dropdown {
    left: 0;
    transform: translateY(8px);
  }

  .nav-group:hover .nav-dropdown,
  .nav-group:focus-within .nav-dropdown {
    transform: translateY(0);
  }
}

/* Keep dropdown menus hover-based instead of scroll-based on all viewport sizes. */
.site-header,
.nav-links,
.nav-group {
  overflow: visible;
}

.nav-links {
  flex-wrap: wrap;
}

.nav-group:hover .nav-dropdown,
.nav-group:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.role-switch,
.post-options,
.community-toolbar {
  display: flex;
  align-items: center;
}

.role-switch {
  gap: 10px;
}

.role-switch span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  font-weight: 800;
}

.testimonial-strip {
  display: grid;
  grid-template-columns: minmax(340px, 0.62fr) minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding: clamp(42px, 6vw, 72px) clamp(18px, 6vw, 80px);
  background: var(--white);
}

.testimonial-strip h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 36px);
  word-break: keep-all;
}

.testimonial-card,
.instructor-profile,
.admin-panel,
.course-accordion details,
.editing-section,
.post-form,
.post-card,
.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.testimonial-card {
  min-height: 160px;
  padding: 28px;
}

.testimonial-card p {
  margin-bottom: 18px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.55;
  font-weight: 700;
}

.testimonial-card strong {
  color: var(--green);
}

.instructor-page,
.courses-page,
.faq-page {
  background: var(--paper);
}

.community-page {
  background: #f7f2ea;
}

.instructor-profile {
  display: grid;
  grid-template-columns: minmax(240px, 360px) minmax(0, 1fr);
  gap: 32px;
  padding: 28px;
}

.photo-placeholder {
  display: grid;
  min-height: 420px;
  place-items: center;
  border-radius: 8px;
  color: var(--green-dark);
  background: linear-gradient(135deg, #dfe9e4, #f7f8f4);
  font-size: 24px;
  font-weight: 800;
}

.profile-copy span,
.post-card span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.profile-copy p,
.editing-section p,
.post-card p,
.faq-list p {
  color: var(--muted);
  line-height: 1.72;
}

.career-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
}

.career-list div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.career-list dt {
  color: var(--muted);
  font-weight: 800;
}

.career-list dd {
  margin: 0;
  font-weight: 800;
}

.instructor-hero {
  display: grid;
  grid-template-columns: minmax(280px, 390px) minmax(0, 1fr);
  gap: 42px;
  align-items: stretch;
}

.instructor-photo {
  display: grid;
  min-height: 540px;
  align-content: space-between;
  padding: 24px;
  border-radius: 8px;
  color: var(--green-dark);
  background: #dfe9e4;
}

.instructor-photo span {
  font-size: 12px;
  font-weight: 800;
}

.instructor-photo strong {
  justify-self: end;
  color: rgba(19, 64, 47, 0.18);
  font-size: 88px;
  line-height: 1;
}

.instructor-intro {
  padding: 18px 0;
}

.instructor-intro > span {
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
}

.instructor-intro h3 {
  margin: 10px 0 24px;
  color: var(--green-dark);
  font-size: 48px;
  line-height: 1.15;
}

.instructor-intro h3 small {
  color: var(--muted);
  font-size: 0.45em;
  font-weight: 700;
}

.instructor-intro blockquote {
  margin: 0;
  padding: 22px 0 22px 24px;
  border-left: 3px solid var(--gold);
  color: #3d4b46;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.9;
}

.instructor-career {
  margin-top: 30px;
}

.instructor-career h4 {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 14px;
}

.instructor-career ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.instructor-career li {
  padding: 12px 0;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
}

.instructor-career li span {
  margin-right: 5px;
  color: var(--green);
}

.instructor-letter {
  display: grid;
  grid-template-columns: minmax(210px, 0.45fr) minmax(0, 1fr);
  gap: 56px;
  margin-top: 70px;
  padding: 54px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.instructor-letter header {
  position: sticky;
  top: 118px;
  align-self: start;
}

.instructor-letter header span {
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.instructor-letter header h3 {
  margin: 10px 0 0;
  color: var(--green-dark);
  font-size: 28px;
}

.instructor-letter-body {
  max-width: 720px;
}

.instructor-letter-body p {
  margin: 0 0 24px;
  color: #46534f;
  font-size: 16px;
  line-height: 2;
}

.instructor-letter-body .instructor-motto {
  margin: 38px 0;
  color: var(--green-dark);
  font-size: 25px;
  font-weight: 800;
}

.instructor-signature {
  display: grid;
  justify-items: end;
  gap: 5px;
  margin-top: 46px;
  color: var(--muted);
}

.instructor-signature strong {
  color: var(--green-dark);
  font-size: 18px;
}

.admin-panel {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1fr);
  gap: 20px;
  margin-bottom: 22px;
  padding: 24px;
  background: #f3fbf7;
}

.upload-form,
.booking-form,
.post-form {
  display: grid;
  gap: 12px;
}

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

.upload-form button {
  grid-column: span 2;
}

.course-accordion {
  display: grid;
  gap: 14px;
}

.course-accordion details {
  overflow: hidden;
}

.course-accordion summary {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 24px;
  cursor: pointer;
  color: var(--green-dark);
  font-size: 20px;
  font-weight: 800;
}

.course-accordion summary strong {
  color: var(--blue);
  font-size: 15px;
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0 24px 24px;
}

.package-grid article {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.editing-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1fr);
  gap: 22px;
  margin-top: 24px;
  padding: 28px;
}

.post-form {
  padding: 24px;
}

.post-options {
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.file-label {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.community-toolbar {
  justify-content: flex-end;
  margin: 18px 0;
}

.post-list {
  display: grid;
  gap: 12px;
}

.post-card {
  padding: 20px;
}

.post-card > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}

.post-card strong {
  font-size: 18px;
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 24px 0;
}

.pagination button {
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  cursor: pointer;
  font-weight: 800;
}

.pagination button.is-active {
  color: var(--white);
  background: var(--green);
  border-color: var(--green);
}

.discord-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  background: #5865f2;
  color: var(--white);
  font-weight: 800;
}

.discord-icon {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 920px;
}

.faq-list details {
  padding: 22px 24px;
}

.faq-list summary {
  cursor: pointer;
  color: var(--green-dark);
  font-size: 18px;
  font-weight: 800;
}

.upload-form input,
.upload-form select,
.booking-form input,
.booking-form select,
.post-form input[type="text"],
.post-form textarea,
.community-toolbar select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 13px;
  color: var(--ink);
  background: var(--white);
}

.post-form textarea {
  min-height: 130px;
  padding: 13px;
  resize: vertical;
}

.upload-form button,
.booking-form button,
.package-grid button,
.post-form button {
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  background: var(--green);
  color: var(--white);
  cursor: pointer;
  font-weight: 800;
}

@media (max-width: 920px) {
  .testimonial-strip,
  .instructor-profile,
  .admin-panel,
  .editing-section,
  .package-grid {
    grid-template-columns: 1fr;
  }

  .upload-form {
    grid-template-columns: 1fr;
  }

  .upload-form button {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .role-switch {
    width: 100%;
    justify-content: space-between;
  }

  .post-card > div,
  .course-accordion summary {
    flex-direction: column;
  }
}

/* Online course gallery refinements */
.course-accordion summary {
  align-items: center;
  list-style: none;
}

.course-accordion summary::-webkit-details-marker {
  display: none;
}

.course-accordion summary::after {
  content: "\25BC";
  color: var(--green);
  font-size: 16px;
  line-height: 1;
}

.course-accordion details[open] summary::after {
  content: "\25B2";
}

.lecture-gallery {
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 14px;
}

.lecture-card {
  gap: 10px;
  padding-bottom: 14px;
}

.lecture-card strong {
  padding: 0 14px;
  font-size: 15px;
}

.lecture-card em {
  justify-self: end;
  align-self: end;
  margin-top: auto;
  padding: 0 14px;
  color: var(--green);
  text-align: right;
  font-style: normal;
  font-size: 14px;
  font-weight: 800;
}

.lecture-card .discount-price {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: baseline;
  gap: 5px 8px;
}

.lecture-card .discount-price s {
  color: #c8453c;
  font-size: 12px;
  font-weight: 800;
  text-decoration-color: #c8453c;
  text-decoration-thickness: 2px;
}

.lecture-card .discount-price span {
  color: var(--green);
}

.lecture-card.package-card {
  border-color: rgba(13, 93, 74, 0.34);
  background: #f3fbf7;
}

.lecture-image {
  aspect-ratio: 16 / 9;
  min-height: 0;
  font-size: 23px;
}

@media (max-width: 920px) {
  .lecture-gallery {
    grid-template-columns: repeat(2, minmax(140px, 1fr));
  }
}

@media (max-width: 560px) {
  .lecture-gallery {
    grid-template-columns: 1fr;
  }

  .course-accordion summary {
    flex-direction: row;
  }
}

.cart-count {
  position: absolute;
  top: -5px;
  right: -7px;
  display: inline-grid;
  min-width: 20px;
  height: 20px;
  place-items: center;
  padding: 0 5px;
  border: 2px solid var(--green-dark);
  border-radius: 999px;
  background: var(--gold);
  color: #211906;
  font-size: 11px;
  font-weight: 800;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-icon-button {
  position: relative;
  display: inline-grid;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
}

.header-icon-button:hover,
.header-icon-button.is-active {
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.16);
}

.header-icon-button svg {
  width: 21px;
  height: 21px;
  stroke-width: 2;
}

.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 (max-width: 920px) {
  .header-tools {
    margin-left: auto;
  }
}

.cart-page {
  background: #f3f6f3;
}

.cart-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(290px, 360px);
  gap: 24px;
  align-items: start;
}

.cart-main,
.cart-summary,
.cart-item,
.empty-cart {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.cart-main {
  overflow: hidden;
}

.cart-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  min-height: 64px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  font-weight: 800;
}

.cart-toolbar label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cart-items {
  display: grid;
}

.cart-item {
  display: grid;
  grid-template-columns: auto 126px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 20px;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  box-shadow: none;
}

.cart-item:last-child {
  border-bottom: 0;
}

.cart-item > input {
  width: 18px;
  height: 18px;
  accent-color: var(--green);
}

.cart-thumbnail {
  display: grid;
  aspect-ratio: 16 / 9;
  place-items: center;
  border-radius: 6px;
  color: var(--white);
  background: linear-gradient(135deg, var(--green), var(--blue));
  font-size: 22px;
  font-weight: 800;
}

.cart-item-copy span,
.cart-item-copy p,
.cart-summary p {
  color: var(--muted);
  font-size: 13px;
}

.cart-item-copy strong {
  display: block;
  margin: 6px 0;
  font-size: 17px;
}

.cart-item-copy p {
  margin: 0;
}

.cart-item-price {
  display: grid;
  justify-items: end;
  gap: 12px;
  white-space: nowrap;
}

.cart-item-price strong {
  color: var(--green-dark);
  font-size: 18px;
}

.cart-item-price button {
  border: 0;
  padding: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  text-decoration: underline;
}

.empty-cart {
  padding: 48px 24px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  text-align: center;
}

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

.cart-summary {
  position: sticky;
  top: 110px;
  padding: 24px;
}

.cart-summary dl {
  display: grid;
  gap: 14px;
  margin: 24px 0;
}

.cart-summary dl div,
.cart-total {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.cart-summary dt {
  color: var(--muted);
}

.cart-summary dd {
  margin: 0;
  font-weight: 800;
}

.cart-total {
  align-items: end;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.cart-total strong {
  color: var(--green);
  font-size: 28px;
}

.cart-summary > button {
  width: 100%;
  min-height: 50px;
  margin-top: 22px;
  border: 0;
  border-radius: 8px;
  color: var(--white);
  background: var(--green);
  cursor: pointer;
  font-weight: 800;
}

.cart-summary > button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.cart-summary p {
  margin: 14px 0 0;
  line-height: 1.55;
  text-align: center;
}

@media (max-width: 920px) {
  .cart-layout {
    grid-template-columns: 1fr;
  }

  .cart-summary {
    position: static;
  }
}

@media (max-width: 620px) {
  .cart-item {
    grid-template-columns: auto 96px minmax(0, 1fr);
  }

  .cart-item-price {
    grid-column: 2 / -1;
    grid-template-columns: 1fr auto;
    justify-items: stretch;
  }
}

.cart-confirm-dialog {
  width: min(480px, calc(100vw - 32px));
  border: 0;
  border-radius: 8px;
  padding: 0;
  color: var(--ink);
  background: var(--white);
  box-shadow: var(--shadow);
}

.cart-confirm-dialog::backdrop {
  background: rgba(7, 20, 17, 0.58);
  backdrop-filter: blur(3px);
}

.cart-confirm-content {
  display: grid;
  justify-items: center;
  padding: 34px;
  text-align: center;
}

.cart-confirm-icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 50%;
  color: var(--white);
  background: var(--green);
}

.cart-confirm-icon svg {
  width: 25px;
  height: 25px;
}

.cart-confirm-content h2 {
  margin-bottom: 10px;
  font-size: 26px;
}

.cart-confirm-content p {
  margin-bottom: 26px;
  color: var(--muted);
  line-height: 1.65;
}

.cart-confirm-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
}

@media (max-width: 480px) {
  .cart-confirm-actions {
    grid-template-columns: 1fr;
  }

  .instructor-hero,
  .instructor-letter {
    grid-template-columns: 1fr;
  }

  .instructor-letter {
    gap: 30px;
    padding: 38px;
  }

  .instructor-letter header {
    position: static;
  }
}

@media (max-width: 620px) {
  .instructor-photo {
    min-height: 400px;
  }

  .instructor-intro h3 {
    font-size: 34px;
  }

  .instructor-career ul {
    grid-template-columns: 1fr;
  }

  .instructor-letter {
    margin-top: 46px;
    padding: 28px 22px;
  }

  .instructor-letter-body p {
    font-size: 15px;
    line-height: 1.9;
  }
}

.lesson-booking-layout {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(650px, 1fr);
  gap: 24px;
  align-items: start;
}

.lesson-settings,
.availability-calendar {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.lesson-settings {
  position: sticky;
  top: 108px;
  display: grid;
  gap: 18px;
  padding: 24px;
}

.booking-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.booking-step > span {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--green);
  font-size: 13px;
  font-weight: 800;
}

.booking-step p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.lesson-type-toggle {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 4px;
  border-radius: 8px;
  background: #edf2ef;
}

.lesson-type-toggle button {
  min-height: 42px;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-weight: 800;
}

.lesson-type-toggle button.is-active {
  color: var(--green-dark);
  background: var(--white);
  box-shadow: 0 4px 12px rgba(20, 32, 29, 0.08);
}

.lesson-field {
  display: grid;
  gap: 8px;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 800;
}

.lesson-field select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink);
  background: var(--white);
}

.field-note {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.55;
}

.service-options {
  display: grid;
  gap: 8px;
}

.service-option {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3px 12px;
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--green-dark);
  background: var(--white);
  cursor: pointer;
  text-align: left;
}

.service-option > span {
  font-size: 13px;
  font-weight: 800;
}

.service-option > strong {
  grid-row: span 2;
  align-self: center;
  color: var(--ink);
  font-size: 14px;
  white-space: nowrap;
}

.service-option .original-price {
  margin-left: 5px;
  color: #c8453c;
  font-size: 12px;
  font-weight: 800;
  text-decoration-color: #c8453c;
  text-decoration-thickness: 2px;
}

.service-option > small {
  color: var(--muted);
  font-size: 11px;
}

.service-option.is-active {
  border-color: var(--green);
  background: #edf9f2;
  box-shadow: 0 0 0 2px rgba(37, 112, 78, 0.1);
}

.duration-toggle {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.duration-toggle button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: var(--white);
  cursor: pointer;
  font-weight: 800;
}

.duration-toggle button.is-active {
  border-color: var(--green);
  color: var(--white);
  background: var(--green);
}

.teacher-calendar-note {
  padding: 15px;
  border-left: 3px solid var(--gold);
  background: #f7f8f6;
}

.teacher-calendar-note span,
.teacher-calendar-note p {
  color: var(--muted);
  font-size: 12px;
}

.teacher-calendar-note strong {
  display: block;
  margin: 3px 0;
  color: var(--green-dark);
}

.teacher-calendar-note p {
  margin: 0;
  line-height: 1.55;
}

.repeat-options {
  display: grid;
  gap: 14px;
  padding: 16px;
  border-radius: 8px;
  background: #f5f8f6;
}

.repeat-options[hidden] {
  display: none;
}

.booking-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.booking-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.booking-legend i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.available-dot {
  background: #4fa67d;
}

.selected-dot {
  background: var(--gold);
}

.busy-dot {
  background: #bbc4c0;
}

.unavailable-dot {
  background: #d8b5b0;
}

.booking-summary {
  display: grid;
  gap: 8px;
  padding: 18px;
  border-radius: 8px;
  color: var(--white);
  background: var(--green-dark);
}

.booking-summary > span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
  font-weight: 800;
}

.booking-summary strong {
  line-height: 1.45;
}

.selected-slot-list {
  display: grid;
  gap: 5px;
  max-height: 130px;
  margin: 0;
  padding: 0;
  overflow: auto;
  list-style: none;
}

.selected-slot-list li {
  padding: 7px 9px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.1);
  font-size: 13px;
  font-weight: 700;
}

.booking-summary p {
  margin: 0 0 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.booking-summary .booking-estimate {
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--gold);
  font-weight: 800;
}

.booking-summary button {
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  color: #211906;
  background: var(--gold);
  cursor: pointer;
  font-weight: 800;
}

.booking-summary button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.availability-calendar {
  overflow: hidden;
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}

.calendar-header h3 {
  margin: 0;
}

.calendar-controls {
  display: flex;
  gap: 6px;
}

.calendar-controls button {
  min-width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--green-dark);
  background: var(--white);
  cursor: pointer;
  font-weight: 800;
}

.calendar-controls button:hover {
  border-color: var(--green);
}

.calendar-scroll {
  overflow-x: auto;
}

.admin-calendar-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  border-bottom: 1px solid #d9c58d;
  background: #fff8e4;
  font-size: 13px;
}

.admin-calendar-tools[hidden] {
  display: none;
}

.admin-calendar-tools > span {
  margin-right: auto;
  color: var(--muted);
}

.admin-calendar-tools > div {
  display: flex;
  gap: 6px;
}

.admin-calendar-tools button {
  min-height: 34px;
  border: 1px solid #d7c47f;
  border-radius: 6px;
  color: var(--green-dark);
  background: var(--white);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}

.week-calendar {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  min-width: 650px;
}

.calendar-day {
  min-width: 0;
  border-right: 1px solid var(--line);
}

.calendar-day:last-child {
  border-right: 0;
}

.calendar-day > header {
  display: grid;
  justify-items: center;
  gap: 4px;
  padding: 16px 8px;
  border-bottom: 1px solid var(--line);
  background: #f4f7f5;
}

.calendar-day > header span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.calendar-day > header strong {
  color: var(--green-dark);
  font-size: 17px;
}

.day-slots {
  display: grid;
  gap: 8px;
  padding: 12px;
}

.time-slot {
  display: grid;
  gap: 3px;
  min-height: 60px;
  place-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
}

.time-slot strong {
  font-size: 15px;
}

.time-slot span {
  font-size: 11px;
  font-weight: 700;
}

.time-slot.is-available {
  border-color: #b7dbc8;
  color: #18563d;
  background: #edf9f2;
}

.time-slot.is-available:hover {
  border-color: var(--green);
  background: #dff2e7;
}

.time-slot.is-selected {
  border-color: #b98913;
  color: #342606;
  background: #f8df9f;
  box-shadow: 0 0 0 2px rgba(217, 165, 41, 0.18);
}

.time-slot.is-booked {
  color: #8b9591;
  background: #ecefed;
  cursor: not-allowed;
}

.time-slot.is-unavailable {
  color: #98716c;
  background: #f3e8e6;
  cursor: not-allowed;
}

.time-slot.is-admin-selected {
  outline: 3px solid var(--gold);
  outline-offset: -3px;
}

@media (max-width: 1100px) {
  .lesson-booking-layout {
    grid-template-columns: 1fr;
  }

  .lesson-settings {
    position: static;
  }
}

@media (max-width: 620px) {
  .calendar-header {
    align-items: flex-start;
    flex-direction: column;
  }
}

.booking-progress {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 760px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.booking-progress li {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #9aa39f;
  font-size: 14px;
}

.booking-progress li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 17px;
  left: 42px;
  right: 12px;
  height: 2px;
  background: var(--line);
}

.booking-progress li span {
  position: relative;
  z-index: 1;
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
  font-weight: 800;
}

.booking-progress li.is-active,
.booking-progress li.is-complete {
  color: var(--green-dark);
}

.booking-progress li.is-active span {
  border-color: var(--green);
  color: var(--white);
  background: var(--green);
}

.booking-progress li.is-complete span {
  border-color: #8fc8aa;
  color: var(--green);
  background: #e7f5ed;
}

.booking-step-panel {
  display: none;
}

.booking-step-panel.is-active {
  display: block;
}

.week-calendar {
  grid-template-columns: repeat(7, minmax(112px, 1fr));
  min-width: 784px;
}

.preparation-panel,
.payment-panel {
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.preparation-panel.is-active,
.payment-panel.is-active {
  display: grid;
}

.preparation-copy,
.preparation-form,
.payment-summary-card,
.payment-checkout-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.preparation-copy,
.payment-summary-card,
.payment-checkout-card {
  padding: 28px;
}

.preparation-copy > p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.7;
}

.selected-booking-preview {
  display: grid;
  gap: 7px;
  margin-top: 28px;
  padding: 18px;
  border-radius: 8px;
  color: var(--white);
  background: var(--green-dark);
}

.selected-booking-preview span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
  font-weight: 800;
}

.selected-booking-preview p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.preparation-form {
  display: grid;
  gap: 18px;
  padding: 28px;
}

.preparation-form label {
  display: grid;
  gap: 8px;
  color: var(--green-dark);
  font-weight: 800;
}

.preparation-form input,
.preparation-form select,
.preparation-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}

.preparation-form input {
  min-height: 48px;
}

.preparation-form select {
  min-height: 48px;
}

.profile-field {
  display: grid;
  gap: 8px;
}

.profile-field label {
  display: flex;
  justify-content: space-between;
}

.profile-field output {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--green);
}

.profile-field input[type="range"] {
  min-height: auto;
  padding: 0;
  accent-color: var(--green);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.profile-choice {
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0;
  border: 0;
}

.profile-choice legend {
  width: 100%;
  margin-bottom: 9px;
  color: var(--green-dark);
  font-weight: 800;
}

.profile-choice label {
  display: flex;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 7px;
  color: var(--ink);
  font-weight: 600;
}

.profile-choice input {
  width: 17px;
  min-height: 17px;
  padding: 0;
  accent-color: var(--green);
}

.preparation-form textarea {
  resize: vertical;
}

.booking-navigation {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 4px;
}

.booking-navigation button {
  min-width: 140px;
}

.payment-summary-card dl {
  display: grid;
  gap: 0;
  margin: 22px 0 0;
}

.payment-summary-card dl div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.payment-summary-card dt {
  color: var(--muted);
  font-weight: 800;
}

.payment-summary-card dd {
  margin: 0;
  font-weight: 800;
}

.payment-price {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 18px;
  margin: 28px 0;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.payment-price span {
  color: var(--muted);
}

.payment-price strong {
  color: var(--green);
  font-size: 26px;
}

.payment-agreement {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.payment-agreement input {
  width: 17px;
  height: 17px;
  margin-top: 2px;
  accent-color: var(--green);
}

.payment-agreements {
  display: grid;
  gap: 10px;
}

.payment-agreement strong {
  color: var(--green);
}

.payment-actions {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 8px;
  margin-top: 20px;
}

#confirm-lesson-payment {
  width: 100%;
  min-height: 50px;
  margin-top: 0;
  border: 0;
  border-radius: 8px;
  color: var(--white);
  background: var(--green);
  cursor: pointer;
  font-weight: 800;
}

.secondary-payment-button {
  min-height: 50px;
  border: 1px solid var(--green);
  border-radius: 8px;
  color: var(--green);
  background: var(--white);
  cursor: pointer;
  font-weight: 800;
}

#confirm-lesson-payment:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.payment-back-button {
  width: 100%;
  min-height: 42px;
  margin-top: 8px;
  border: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-weight: 800;
}

@media (max-width: 920px) {
  .preparation-panel,
  .payment-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .booking-progress strong {
    display: none;
  }

  .booking-progress li:not(:last-child)::after {
    right: 4px;
  }

  .booking-navigation {
    display: grid;
    grid-template-columns: 1fr;
  }

  .profile-grid,
  .payment-actions {
    grid-template-columns: 1fr;
  }

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

  .admin-calendar-tools > span {
    margin-right: 0;
  }
}

.editing-progress {
  max-width: 820px;
}

.editing-step-panel {
  display: none;
}

.editing-step-panel.is-active {
  display: block;
}

.editing-selection-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: start;
}

.editing-selection-form,
.editing-price-summary,
.editing-guidance,
.editing-detail-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
}

.editing-selection-form {
  display: grid;
  gap: 24px;
  padding: 28px;
}

.editing-selection-form .lesson-type-toggle {
  max-width: 500px;
}

.draft-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.draft-options button {
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: var(--white);
  cursor: pointer;
  font-weight: 800;
}

.draft-options button.is-active {
  border-color: var(--green);
  color: var(--white);
  background: var(--green);
}

.editing-price-summary {
  position: sticky;
  top: 108px;
  padding: 26px;
}

.editing-price-summary > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.editing-price-summary h3 {
  margin: 8px 0 5px;
}

.editing-price-summary > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.editing-price-row {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 18px;
  margin: 24px 0;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.editing-price-row span {
  color: var(--muted);
}

.editing-price-row strong {
  color: var(--green);
  font-size: 24px;
}

.editing-price-summary > button {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  color: var(--white);
  background: var(--green);
  cursor: pointer;
  font-weight: 800;
}

.editing-detail-layout,
.editing-payment-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.editing-guidance {
  padding: 28px;
}

.editing-guidance > p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.7;
}

.editing-notice {
  margin-top: 26px;
  padding: 18px;
  border-left: 3px solid #c8453c;
  background: #fff4f2;
}

.editing-notice strong {
  color: #a5352e;
}

.editing-notice ul {
  display: grid;
  gap: 8px;
  margin: 10px 0 0;
  padding-left: 20px;
  color: #75524e;
  font-size: 13px;
  line-height: 1.6;
}

.editing-detail-form {
  display: grid;
  gap: 18px;
  padding: 28px;
}

.editing-detail-form label {
  display: grid;
  gap: 8px;
  color: var(--green-dark);
  font-weight: 800;
}

.editing-detail-form input,
.editing-detail-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}

.editing-detail-form input {
  min-height: 48px;
}

.editing-detail-form textarea {
  resize: vertical;
}

.editing-detail-form small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
}

.file-upload-field input {
  padding: 9px 12px;
  cursor: pointer;
}

.refund-notice {
  margin: 0 0 22px;
  padding: 16px;
  border: 1px solid #dfc978;
  border-radius: 8px;
  background: #fff9e7;
}

.refund-notice strong {
  color: #775d0b;
}

.refund-notice p {
  margin: 7px 0 0;
  color: #6d6242;
  font-size: 13px;
  line-height: 1.65;
}

#confirm-editing-payment {
  width: 100%;
  min-height: 50px;
  border: 0;
  border-radius: 8px;
  color: var(--white);
  background: var(--green);
  cursor: pointer;
  font-weight: 800;
}

#confirm-editing-payment:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

@media (max-width: 920px) {
  .editing-selection-layout,
  .editing-detail-layout,
  .editing-payment-layout {
    grid-template-columns: 1fr;
  }

  .editing-price-summary {
    position: static;
  }
}

@media (max-width: 620px) {
  .draft-options {
    grid-template-columns: 1fr;
  }
}

.class-type-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: 1080px;
}

.class-type-widget {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 24px;
  gap: 18px;
  align-items: center;
  min-height: 174px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: var(--white);
  box-shadow: 0 12px 34px rgba(20, 32, 29, 0.06);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.class-type-widget:hover {
  border-color: #8fc8aa;
  box-shadow: 0 18px 42px rgba(20, 32, 29, 0.1);
  transform: translateY(-3px);
}

.class-type-icon {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border-radius: 8px;
  color: var(--green);
  background: #e8f4ed;
}

.class-type-icon svg {
  width: 25px;
  height: 25px;
  stroke-width: 1.8;
}

.class-type-widget h3 {
  margin: 0 0 8px;
  color: var(--green-dark);
  font-size: 20px;
}

.class-type-widget p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.class-type-arrow {
  width: 21px;
  height: 21px;
  color: #91a09a;
  transition: color 160ms ease, transform 160ms ease;
}

.class-type-widget:hover .class-type-arrow {
  color: var(--green);
  transform: translateX(3px);
}

@media (max-width: 760px) {
  .class-type-grid {
    grid-template-columns: 1fr;
  }

  .class-type-widget {
    min-height: 148px;
    padding: 22px;
  }
}

@media (max-width: 480px) {
  .class-type-widget {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .class-type-icon {
    width: 44px;
    height: 44px;
  }

  .class-type-arrow {
    display: none;
  }
}