@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --color-primary: #00ACC1;
  --color-secondary: #5FAE63;
  --color-white: #FFFFFF;
  --color-white-soft: #fafafa;
  --color-white-logo: #fefefe;
  --color-gray: #c9c9c9;
  --color-text: #212121;
  --color-border: #e5ece8;

  /* New softer text/accent colors */
  --color-text-workaround: #383838;
  --color-text-muted: rgba(33, 33, 33, 0.68);
  --color-text-soft: rgba(33, 33, 33, 0.54);

  --color-primary-dark: #145c63;
  --color-primary-soft: rgba(0, 172, 193, 0.10);

  --color-secondary-soft: rgba(95, 174, 99, 0.12);

  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 28px;

  --shadow-soft: 0 8px 24px rgba(33, 33, 33, 0.08);
  --shadow-hover: 0 12px 30px rgba(33, 33, 33, 0.12);
  --transition: all 0.4s ease;
  --max-width-auth: 420px;
  --max-width-page: 1180px;
}

/* ===== Reset and base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  min-height: 100vh;
  font-family: 'Inter', sans-serif;
  color: var(--color-text);
  line-height: 1.5;
}

img {
  max-width: 100%;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--max-width-page);
  margin: 0 auto;
  padding: 0 20px;
}

.plain-body {
  background: linear-gradient(135deg, var(--color-white-soft), #f0efef);
}

.gradient-body-1,
.gradient-background {
  background:
    radial-gradient(circle at top left, rgba(86, 241, 255, 0.42), transparent 34%),
    radial-gradient(circle at bottom right, rgba(95, 174, 99, 0.12), transparent 32%),
    linear-gradient(135deg, #fcfcfc 0%, #eef8fb 45%, #f0faf6 100%);
}

.gradient-body-2 {
  background:
    radial-gradient(circle at top left, rgba(58, 224, 58, 0.34), transparent 34%),
    radial-gradient(circle at bottom right, rgba(160, 250, 160, 0.45), transparent 32%),
    linear-gradient(135deg, #fcfcfc 0%, #eef9ef 45%, #f0faf6 100%);
}

/* ===== Forms and auth pages ===== */
.auth-page {
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}

.auth-card {
  width: 100%;
  max-width: var(--max-width-auth);
  background-color: var(--color-white);
  border: 1px solid rgba(129, 199, 132, 0.25);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 32px 28px;
}

.auth-header h1,
.auth-card h1,
.auth-card h2 {
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}

.auth-card p {
  text-align: center;
  color: rgba(33, 33, 33, 0.75);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.auth-form,
.input-group {
  display: flex;
  flex-direction: column;
}

.auth-form {
  gap: 16px;
}

.input-group {
  gap: 8px;
}

label {
  font-size: 0.92rem;
  font-weight: 600;
}

input,
textarea,
select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--color-gray);
  border-radius: var(--radius-md);
  padding: 0 14px;
  font-size: 0.95rem;
  font-family: inherit;
  background-color: var(--color-white);
  color: var(--color-text);
  outline: none;
}

textarea,
select {
  padding: 12px 14px;
}

input::placeholder,
textarea::placeholder {
  color: rgba(33, 33, 33, 0.45);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 4px rgba(0, 172, 193, 0.12);
}

.message,
#message {
  margin-top: 14px;
  font-size: 0.92rem;
  text-align: center;
  min-height: 20px;
}

.message.error,
#message.error {
  color: #c62828;
}

.message.success,
#message.success {
  color: #2e7d32;
}

/* ===== Buttons ===== */
button,
.btn,
.btn-primary,
.btn-secondary,
.btn-terciary,
.btn-outline {
  min-height: 46px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}

.btn,
.btn-primary,
.btn-secondary,
.btn-terciary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 1px solid var(--color-primary);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
  filter: brightness(0.98);
  text-decoration: none;
}

.btn-secondary {
  background-color: rgba(0, 172, 193, 0.08);
  color: var(--color-primary);
  border: 1px solid rgba(0, 172, 193, 0.25);
}

.btn-secondary:hover {
  background-color: rgba(0, 172, 193, 0.14);
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
}

.btn-terciary {
  background-color: var(--color-secondary);
  color: var(--color-white);
  border: 1px solid var(--color-secondary);
}

.btn-terciary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
  filter: brightness(0.98);
  text-decoration: none;
}

.btn-outline {
  background-color: transparent;
  border: 1px solid #bdbdbd;
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background-color: rgba(129, 199, 132, 0.08);
  text-decoration: none;
}

.header-btn {
  min-width: 110px;
  padding: 0 20px;
}

/* ===== Landing page ===== */
.site-header {
  background-color: #fefefe;
  border-bottom: 1px solid #e7e7e7;
  z-index: 20;
}

.header-top {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 92px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  height: 72px;
  width: auto;
  object-fit: contain;
  display: block;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.hero-section {
  padding: 72px 0;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  align-items: center;
  gap: 32px;
}

.hero-text h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.hero-text p {
  font-size: 1.2rem;
  color: rgba(33, 33, 33, 0.8);
  max-width: 640px;
  margin-bottom: 28px;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-btn {
  min-width: 150px;
  padding: 0 22px;
}

.hero-card {
  background-color: var(--color-white);
  border: 1px solid rgba(129, 199, 132, 0.35);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 28px;
}

.hero-card h2 {
  color: var(--color-primary);
  margin-bottom: 12px;
}

.hero-card p {
  color: rgba(33, 33, 33, 0.78);
  margin-bottom: 18px;
  font-size: 1.05rem;
}

.hero-card ul {
  padding-left: 18px;
}

.hero-card li + li {
  margin-top: 10px;
}

.site-footer {
  margin-top: 40px;
  background-color: var(--color-text);
  border-top: 1px solid var(--color-white-soft);
  padding-top: 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.footer-grid p {
  font-size: 1.05rem;
  color: var(--color-white-soft);
}

.footer-column h3 {
  font-size: 1.4rem;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-column a {
  display: block;
  color: var(--color-white-soft);
  margin-bottom: 10px;
}

.footer-column a:hover {
  color: var(--color-secondary);
}

.social-row {
  display: flex;
  justify-content: center;
  gap: 24px;
  border-top: 1px solid #eeeeee;
  margin-top: 36px;
  padding: 20px 0 28px;
}

.social-row a {
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--color-white-soft);
}

.social-row a:hover {
  color: var(--color-secondary);
}

/* ===== Student dashboard / workspace ===== */
.workspace-body {
  min-height: 100vh;
}

.workspace-shell {
  width: 100%;
  max-width: 1460px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.workspace-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-content: start;
  min-width: 0;
}

.workspace-sidebar {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 30px;
  box-shadow: var(--shadow-soft);
  padding: 22px;
  display: grid;
  gap: 22px;
  align-content: start;
  position: sticky;
  top: 18px;
}

.workspace-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.workspace-logo {
  width: 150px;
  display: block;
  margin: 0 auto;
}

.workspace-nav {
  display: grid;
  gap: 10px;
}

.workspace-nav-link {
  display: flex;
  align-items: center;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 16px;
  padding: 0 14px;
  color: var(--color-primary);
  font-size: 1.05rem;
  font-weight: 600;
  background: transparent;
  text-decoration: none;
}

.workspace-nav-link:hover,
.workspace-nav-link.active,
.workspace-logout:hover {
  background: rgba(95, 174, 99, 0.08);
  border-color: rgba(95, 174, 99, 0.18);
  color: var(--color-primary);
  text-decoration: none;
}

.workspace-logout {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
}

.workspace-card {
  color: var(--color-primary);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
  padding: 24px;
}

.top-links-card {
  padding-top: 20px;
}

.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.compact-header {
  align-items: center;
}

.section-header h2 {
  font-size: 1.35rem;
}

.section-header p {
  color: rgba(33, 33, 33, 0.68);
  margin-top: 4px;
}

.link-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.link-chip {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(0, 172, 193, 0.08);
  color: var(--color-secondary);
  font-weight: 600;
  text-decoration: none;
}

.link-chip:hover {
  background: rgba(0, 172, 193, 0.14);
  text-decoration: none;
}

.calendar-toolbar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.calendar-nav-btn {
  width: 38px;
  min-height: 38px;
  border-radius: 12px;
  border: 1px solid #d8e5de;
  background: var(--color-white);
  color: var(--color-text);
  font-size: 1rem;
}

.calendar-nav-btn:hover {
  border-color: rgba(0, 172, 193, 0.25);
  color: var(--color-secondary);
}

.calendar-label {
  font-weight: 700;
  color: var(--color-primary);
}

.calendar-summary {
  margin-bottom: 14px;
  color: rgba(33, 33, 33, 0.72);
}

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.legend-pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
}

.legend-pill.class {
  background: rgba(95, 174, 99, 0.12);
  color: #2d6b33;
}

.legend-pill.assignment,
.legend-pill.meeting {
  background: rgba(0, 172, 193, 0.1);
  color: #0a7180;
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}

.month-heading {
  font-size: 0.82rem;
  color: rgba(33, 33, 33, 0.54);
  font-weight: 700;
  text-align: center;
  padding-bottom: 6px;
}

.month-day {
  min-height: 128px;
  border-radius: 18px;
  border: 1px solid #e7ece9;
  background: #fbfcfb;
  padding: 12px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.month-day.muted {
  background: transparent;
  border-style: dashed;
  border-color: rgba(201, 201, 201, 0.55);
}

.month-day.has-events {
  background: var(--color-white);
}

.month-day-number {
  font-weight: 700;
}

.month-event-list {
  display: grid;
  gap: 8px;
}

.calendar-pill {
  width: 100%;
  border: none;
  min-height: 34px;
  border-radius: 12px;
  font-size: 0.82rem;
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}

.calendar-pill.class {
  background: rgba(95, 174, 99, 0.12);
  color: #2d6b33;
}

.calendar-pill.assignment,
.calendar-pill.meeting {
  background: rgba(0, 172, 193, 0.1);
  color: #0a7180;
}

.calendar-empty-note,
.empty-panel-state {
  color: rgba(33, 33, 33, 0.5);
  font-size: 0.84rem;
}

.hidden {
  display: none !important;
}

/* ===== Tracks page ===== */
.tracks-body {
  min-height: 100vh;
  color: var(--color-text-workaround);
  line-height: 1.6;
}

.tracks-body .container {
  width: min(94%, 1400px);
  min-width: 1300px;
  margin: 0 auto;
  padding: 0;
}

.tracks-header {
  background: #fefefe;;
  border-bottom: 3px solid var(--color-primary-soft);
  backdrop-filter: blur(10px);
}

.tracks-header-content {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 20px;
}

.tracks-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.tracks-logo {
  height: 54px;
  display: block;
}

.tracks-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tracks-nav a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 12px;
  color: var(--color-text-workaround);
  font-weight: 700;
  text-decoration: none;
}

.tracks-nav a:hover {
  background: rgba(0, 172, 193, 0.08);
  text-decoration: none;
}

.tracks-main {
  padding: 48px 0;
}

.tracks-panel {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
  /* padding: 32px; */
  margin-top: 40px;
  padding: 32px 32px 50px 32px;
  margin-bottom: 80px; 
}

.tracks-intro {
  max-width: 680px;
  margin-bottom: 28px;
}

.tracks-kicker {
  color: var(--color-secondary);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.tracks-intro h1 {
  color: var(--color-primary);
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.1;
  margin-bottom: 10px;
  letter-spacing: -0.04em;
}

.tracks-intro p {
  color: rgba(33, 33, 33, 0.68);
}

.tracks-body .link-list {
  display: grid;
  gap: 16px;
}

.tracks-body .link-card {
  min-height: 54px;
  display: grid;
  gap: 4px;
  background: var(--color-white);
  border-left: 6px solid var(--color-primary);
  border-radius: 6px;
  padding: 18px 20px;
  color: var(--color-text);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(33, 33, 33, 0.04);
}

.tracks-body .link-card:hover {
  transform: translateX(10px);
  border-left-color: var(--color-secondary);
  box-shadow: 0 12px 32px rgba(33, 33, 33, 0.1);
  text-decoration: none;
  background: linear-gradient(135deg, transparent, rgba(1, 127, 150, 0.23));
}

.tracks-body .link-title {
  color: var(--color-primary);
  font-size: 1.15rem;
  font-weight: 700;
}

.tracks-body .link-card:hover .link-title {
  color: var(--color-secondary);
}

.tracks-body .link-description {
  color: rgba(33, 33, 33, 0.64);
  font-size: 0.95rem;
}


/* ===== Responsive ===== */
@media (max-width: 960px) {
  .header-top,
  .hero-content,
  .workspace-shell {
    grid-template-columns: 1fr;
  }

  .header-actions {
    justify-content: flex-start;
  }

  .workspace-sidebar {
    position: static;
  }
}

@media (max-width: 760px) {
  .footer-grid,
  .month-grid {
    grid-template-columns: 1fr;
  }

  .month-heading {
    display: none;
  }

  .section-header {
    display: grid;
  }

  .workspace-shell {
    padding: 16px;
  }

  .workspace-card,
  .workspace-sidebar {
    padding: 18px;
    border-radius: 22px;
  }

  .hero-section {
    padding: 48px 0;
  }

  .hero-text p {
    font-size: 1rem;
  }

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

  .social-row,
  .header-actions,
  .hero-buttons {
    flex-wrap: wrap;
  }

  .header-btn,
  .hero-btn {
    width: 100%;
  }
}

@media (max-width: 700px) {
  .tracks-header-content {
    min-height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .tracks-nav {
    width: 100%;
    flex-wrap: wrap;
  }

  .tracks-nav a {
    background: rgba(0, 172, 193, 0.08);
  }

  .tracks-main {
    padding: 28px 0;
  }

  .tracks-panel {
    padding: 22px;
    border-radius: 22px;
  }
}

@media (max-width: 480px) {
  .auth-card {
    padding: 24px 18px;
    border-radius: 14px;
  }

  .auth-card h1,
  .auth-card h2 {
    font-size: 1.5rem;
  }
}

/* ===== Track module/index pages ===== */
.tracks-body .modules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.tracks-body .lesson-list {
  gap: 14px;
}

.tracks-body .link-card {
  align-items: center;
}

.tracks-body .link-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  width: 34px;
  min-height: 34px;
}

.tracks-body .lesson-list .link-card {
  grid-template-columns: 42px minmax(0, 1fr);
  column-gap: 20px;
  padding: 18px 24px 20px 20px;
  align-items: center;
}

.tracks-body .lesson-list .link-title {
  line-height: 1.45;
    max-width: none;
  width: 100%;
}

.tracks-body .modules-grid .link-card {
  padding: 12px 16px;
}

.tracks-body .modules-grid .link-title {
  font-size: 1rem;
}

.tracks-kicker {
  color: var(--color-primary);
}

.tracks-intro h1 {
  color: var(--color-text-workaround);
}

.tracks-intro p {
  color: var(--color-text-workaround);
}

.tracks-body  .link-card {
  border-left-color: var(--color-text-workaround);
}

.tracks-body .link-number {
color: var(--color-text-workaround);
}

.tracks-body .link-title {
  color: var(--color-text-workaround);
  font-weight: 700;
}

.tracks-body  .link-card:hover {
  border-left-color: var(--color-primary-dark);
}

.tracks-body  .link-card:hover .link-number,
.tracks-body  .link-card:hover .link-title {
  color: var(--color-primary-dark);
}

@media (max-width: 900px) {
  .tracks-body .modules-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .tracks-body .modules-grid {
    grid-template-columns: 1fr;
  }

  .tracks-body .lesson-list .link-card {
    grid-template-columns: 1fr;
  }
}

/* Physics modules page only */

.tracks-body .physics-modules-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tracks-body .physics-modules-grid .link-card {
  min-height: 82px;
  padding: 18px 20px;
  align-content: center;
}

.tracks-body .physics-modules-grid .link-title {
  font-size: 1.15rem;
  line-height: 1.35;
}

.tracks-body .physics-modules-grid .link-description {
  font-size: 0.98rem;
  line-height: 1.45;
}

@media (max-width: 760px) {
  .tracks-body .physics-modules-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Schedule generator ===== */

.generator-navigation {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.generator-step {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.generator-step h2 {
  color: var(--color-text-workaround);
  font-size: 1.25rem;
}

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

.button-grid {
  display: grid;
  grid-template-columns: 1;
  gap: 14px;
}

.generator-button,
.module-button {
  min-height: 54px;
  border: 1px solid var(--color-border);
  border-left: 6px solid var(--color-text-workaround);
  border-radius: 6px;
  background: var(--color-white);
  color: var(--color-text-workaround);
  font-size: 1.15rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  padding: 12px 16px;
  transition: var(--transition);
}

.generator-button:hover,
.module-button:hover {
  transform: translateX(6px);
  border-left-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-soft);
}

.module-button.selected {
  background: var(--color-primary-soft);
  border-color: rgba(0, 172, 193, 0.35);
  border-left-color: var(--color-primary);
  color: var(--color-primary-dark);
}

.generator-actions {
  display: flex;
  justify-content: flex-start;
  gap: 12px;
  margin-top: 24px;
}

.selectable-modules-grid {
  margin-top: 6px;
}

#startDate {
  max-width: 320px;
}

#generatorMessage {
  margin-top: 20px;
}

/* ===== Schedule generator week preview ===== */

.week-preview-list {
  display: grid;
  gap: 28px;
}

.week-preview-module {
  display: grid;
  gap: 14px;
}

.week-preview-module-title {
  color: var(--color-text-workaround);
  font-size: 1.25rem;
}

.week-preview-items {
  display: grid;
}

.generator-week-card {
  min-height: 54px;
  height: auto;
  padding: 0 24px 0 20px;
  align-items: center;
  border-top: 0;
  border-right: 0;
  border-bottom: 0;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.15rem;
}

.generator-week-card:hover {
  transform: none;
  border-left-color: var(--color-primary-dark);
  box-shadow: var(--shadow-soft);
}

.generator-week-card.selected {
  background: var(--color-primary-soft);
  border-left-color: var(--color-primary);
  box-shadow: var(--shadow-soft);
}

.generator-week-card.selected .link-number,
.generator-week-card.selected .link-title {
  color: var(--color-primary-dark);
}

.tracks-body .generator-week-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  min-height: 54px;
  height: auto;
  padding: 0 24px 0 20px;
  transition:
    background-color 0.4s ease,
    color 0.4s ease,
    border-color 0.4s ease,
    box-shadow 0.4s ease;
}

.tracks-body .generator-week-card:hover {
  transform: none;
  border-left-color: var(--color-primary-dark);
  box-shadow: var(--shadow-soft);
}

.tracks-body .generator-week-card .link-number {
  display: flex;
  align-items: center;
  justify-content: center;
}

.tracks-body .generator-week-card .link-title,
.tracks-body .generator-week-card .link-description {
  display: inline;
  line-height: 1.35;
}

.special-week-wrapper {
  display: grid;
  gap: 10px;
}

.special-week-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-left: 18px;
}

.special-week-card {
  border-left-style: dashed;
}

.special-week-card.selected {
  border-left-style: solid;
  background: var(--color-secondary-soft);
  border-left-color: var(--color-secondary);
}

.special-week-option {
  min-width: 150px;
  transition: var(--transition);
}

.special-week-option:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

/* ===== Generated schedule matrix page ===== */

.generated-schedule-panel {
  background: rgba(255, 255, 255, 0.94);
}

.schedule-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-start;
  margin-bottom: 24px;
}

.schedule-print-area {
  width: 100%;
  position: relative;
  --schedule-header-color: var(--color-secondary);
  --schedule-stripe-color: rgba(95, 174, 99, 0.12);
}

.schedule-document-title {
  width: fit-content;
  margin: 0 auto 26px;
  padding-bottom: 10px;
  border-bottom: 4px solid var(--schedule-header-color);
  color: var(--color-text-workaround);
  text-align: center;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-transform: none;
}

.schedule-matrix-list {
  display: grid;
  gap: 30px;
}

.schedule-matrix-section {
  width: 100%;
  overflow-x: auto;
}

.schedule-matrix-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  background: var(--color-white);
  font-size: 0.78rem;
}

.schedule-matrix-table th {
  background: var(--schedule-header-color);
  color: #0b2810;
  font-weight: 800;
  text-align: center;
  padding: 12px 8px;
}

.schedule-matrix-table td {
  padding: 8px 8px;
  vertical-align: middle;
  color: var(--color-text-workaround);
  /* border: 1px solid transparent; */
}

.schedule-matrix-table tbody tr:nth-child(odd) {
  background: var(--schedule-stripe-color);
}

.schedule-matrix-table tbody tr:nth-child(even) {
  background: var(--color-white);
}

.schedule-date-col {
  width: 9%;
}

.schedule-week-col {
  width: 6%;
}

.schedule-topic-col {
  width: 37%;
}

.schedule-small-col {
  width: 9%;
}

.schedule-perception-col {
  width: 12%;
}

.schedule-date-cell,
.schedule-week-cell,
.schedule-check-cell {
  text-align: center;
  font-weight: 700;
}

.schedule-topic-cell {
  text-align: center;
}

.matrix-input {
  width: 100%;
  min-height: 34px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.72);
  font-size: 0.75rem;
  font-family: inherit;
  color: var(--color-text-workaround);
}

.matrix-select {
  padding: 4px;
}

.matrix-textarea {
  min-height: 38px;
  padding: 6px;
  resize: vertical;
}

.matrix-checkbox {
  width: 18px;
  min-height: 18px;
}

.schedule-difficulty-cell {
  text-align: center;
  font-weight: 700;
  vertical-align: middle;
}

.schedule-color-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
  padding: 18px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(33, 33, 33, 0.04);
}

.schedule-color-controls input[type="color"] {
  min-height: 48px;
  padding: 6px;
  cursor: pointer;
}

@media (max-width: 760px) {
  .schedule-color-controls {
    grid-template-columns: 1fr;
  }
}

.schedule-watermark {
  display: none;
}

.schedule-document-title,
.schedule-matrix-list {
  position: relative;
  z-index: 1;
}

/* ===== Responsive schedule generator / schedule matrix ===== */

@media (max-width: 900px) {
  .schedule-matrix-section {
    overflow-x: auto;
  }

  .schedule-matrix-table {
    min-width: 900px;
  }
}

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

  .generator-actions {
    flex-direction: column;
    align-items: stretch;
  }

  #startDate {
    max-width: none;
  }

  .special-week-options {
    padding-left: 0;
  }

  .special-week-option {
    width: 100%;
  }
}

/* ===== Generated schedule print / PDF ===== */

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

  .screen-only,
  .tracks-header,
  .schedule-actions {
    display: none !important;
  }

  body,
  .tracks-body,
  .gradient-background {
    background: var(--color-white) !important;
  }

  .tracks-main {
    padding: 0;
  }

  .tracks-body .container {
    width: 100%;
    min-width: 0;
    max-width: none;
    padding: 0;
  }

  .tracks-panel,
  .generated-schedule-panel {
    box-shadow: none;
    border: none;
    margin: 0;
    padding: 0;
    background: var(--color-white);
  }

  .schedule-document-title {
    width: fit-content;
    margin: 0 auto 8mm;
    padding-bottom: 3mm;
    border-bottom: 1.2mm solid var(--schedule-header-color);
    font-size: 20pt;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .schedule-matrix-list {
    gap: 9mm;
  }

  .schedule-matrix-section {
    overflow: visible;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .schedule-matrix-table {
    min-width: 0;
    font-size: 7.5pt;
    page-break-inside: avoid;
  }

  .schedule-matrix-table th {
    background: var(--schedule-header-color) !important;
    padding: 5px 4px;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .schedule-matrix-table td {
    padding: 4px 4px;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .schedule-matrix-table tbody tr:nth-child(odd) {
    background: var(--schedule-stripe-color) !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .schedule-matrix-table tbody tr:nth-child(even) {
    background: #ffffff !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .matrix-input {
    border: none;
    background: transparent;
    min-height: 20px;
    font-size: 7.5pt;
  }

  .matrix-textarea {
    resize: none;
    overflow: hidden;
  }

  .matrix-checkbox {
    width: 10px;
    min-height: 10px;
  }
 
  .schedule-difficulty-cell {
  text-align: center;
  font-weight: 700;
  vertical-align: middle;
  }

  .schedule-watermark {
    position: fixed;
    inset: auto;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    display: flex !important;
    align-items: center;
    justify-content: center;
    transform: translate(-50%, -50%);
    z-index: 0;
    pointer-events: none;
    user-select: none;
  }

  .schedule-watermark img {
    width: 58vw;
    max-width: 720px;
    opacity: 0.05;
    transform: rotate(-20deg);
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .schedule-document-title,
  .schedule-matrix-list {
    position: relative;
    z-index: 1;
  }

}