:root {
  --bg: #f7efe4;
  --bg-soft: #fbf7f1;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #fffdf9;
  --text: #14213d;
  --muted: #5f6c80;
  --line: rgba(20, 33, 61, 0.1);
  --navy: #17324d;
  --teal: #0f766e;
  --gold: #c88b2a;
  --coral: #d95d39;
  --shadow: 0 25px 80px rgba(23, 50, 77, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(200, 139, 42, 0.18), transparent 32%),
    radial-gradient(circle at 90% 10%, rgba(15, 118, 110, 0.16), transparent 28%),
    linear-gradient(180deg, #fff7ee 0%, #f9f0e4 36%, #f6efe8 100%);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.35) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.35) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 20%, transparent 85%);
  opacity: 0.35;
}

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

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

main {
  display: grid;
  gap: 2rem;
  padding-bottom: 4rem;
}

.page-shell {
  position: relative;
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 2rem;
}

.site-header {
  position: sticky;
  top: 0.8rem;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  background: rgba(255, 252, 246, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  color: #fff;
  background: linear-gradient(135deg, var(--navy), var(--teal));
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand strong,
.hero h1,
.section-title h2,
.page-intro h1,
.blog-post h1,
.auth-card h1,
.lesson-copy h1,
.empty-state h1 {
  font-family: Georgia, "Times New Roman", serif;
}

.brand small {
  display: block;
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
}

.site-nav a {
  color: var(--muted);
  font-weight: 700;
}

.site-nav form {
  margin: 0;
}

.hero,
.dashboard-hero,
.lesson-hero,
.split-section,
.lesson-grid,
.pricing-grid,
.feature-grid,
.stats-grid,
.module-grid,
.curriculum-grid,
.review-grid,
.testimonial-grid {
  display: grid;
  gap: 1.4rem;
}

.hero {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  min-height: 72vh;
  padding: 2.25rem;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(23, 50, 77, 0.96), rgba(15, 118, 110, 0.9)),
    linear-gradient(120deg, rgba(255, 255, 255, 0.08), transparent);
  color: #fff;
  box-shadow: var(--shadow);
}

.hero-copy,
.lesson-copy {
  position: relative;
  z-index: 1;
}

.hero h1,
.page-intro h1,
.lesson-copy h1,
.blog-post h1,
.auth-card h1,
.empty-state h1 {
  margin: 0.2rem 0 0.7rem;
  font-size: clamp(2.3rem, 5vw, 4.8rem);
  line-height: 1.02;
}

.hero p,
.page-intro p,
.lesson-copy p,
.lead {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.84);
}

.hero-panel {
  position: relative;
  padding-left: 1rem;
}

.hero-panel > img,
.visual-stack img,
.lesson-hero > img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  border-radius: 28px;
}

.hero-floating-card {
  position: absolute;
  right: -0.5rem;
  bottom: 1rem;
  max-width: 260px;
  padding: 1rem 1.1rem;
  border-radius: 24px;
  background: rgba(255, 252, 246, 0.92);
  color: var(--text);
  box-shadow: var(--shadow);
}

.hero-actions,
.module-actions,
.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
}

.eyebrow,
.section-title span,
.pill,
.status-tag {
  display: inline-flex;
  width: fit-content;
  padding: 0.42rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: inherit;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.73rem;
  font-weight: 800;
}

.page-intro,
.content-card,
.feature-card,
.stat-card,
.curriculum-card,
.module-card,
.study-card,
.pricing-card,
.testimonial-card,
.forum-card,
.forum-comment,
.review-card,
.auth-card,
.empty-state,
.blog-post {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.page-intro,
.empty-state,
.blog-post,
.content-card,
.feature-card,
.pricing-card,
.testimonial-card,
.forum-card,
.forum-comment,
.review-card,
.auth-card {
  padding: 1.5rem;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.stat-card strong {
  display: block;
  font-size: 1.6rem;
  margin-bottom: 0.3rem;
}

.feature-section {
  display: grid;
  gap: 1.1rem;
}

.section-title h2 {
  margin: 0.35rem 0 0.45rem;
  font-size: clamp(1.8rem, 4vw, 3.1rem);
}

.section-title p,
.muted,
.forum-card small,
.forum-comment small,
.review-card p,
.stat-card span,
.content-card p,
.feature-card p {
  color: var(--muted);
}

.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.curriculum-card,
.module-card,
.study-card {
  display: grid;
  overflow: hidden;
  grid-template-columns: 220px 1fr;
}

.curriculum-card img,
.module-card img,
.study-card img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.curriculum-card div,
.module-card div,
.study-card div {
  padding: 1.3rem;
}

.study-card.locked {
  opacity: 0.85;
}

.study-card.locked img {
  filter: grayscale(0.15) saturate(0.8);
}

.module-card.is-complete {
  outline: 2px solid rgba(15, 118, 110, 0.28);
}

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

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

.visual-stack img:last-child {
  transform: translateX(12%) rotate(-3deg);
}

.pricing-card {
  position: relative;
}

.pricing-card-featured {
  background: linear-gradient(180deg, rgba(255, 248, 234, 0.95), rgba(255, 255, 255, 0.8));
  border-color: rgba(200, 139, 42, 0.28);
  transform: translateY(-0.4rem);
}

.price {
  font-size: 2.25rem;
  font-weight: 800;
  margin: 0.8rem 0;
}

.simple-list {
  display: grid;
  gap: 0.7rem;
  padding-left: 1.1rem;
  color: var(--muted);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.75rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--coral), var(--gold));
  box-shadow: 0 18px 35px rgba(217, 93, 57, 0.24);
}

.button-ghost {
  border-color: rgba(23, 50, 77, 0.16);
  background: rgba(255, 255, 255, 0.5);
  color: var(--navy);
}

.notice {
  margin-bottom: 1rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(15, 118, 110, 0.16);
  border-radius: 20px;
  background: rgba(224, 249, 242, 0.9);
  color: var(--teal);
  font-weight: 700;
}

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

label span {
  display: block;
  margin-bottom: 0.45rem;
  font-weight: 700;
}

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

input,
select,
textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(23, 50, 77, 0.16);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
}

textarea {
  resize: vertical;
}

.auth-shell {
  min-height: 72vh;
  display: grid;
  place-items: center;
}

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

.dashboard-hero,
.lesson-hero {
  grid-template-columns: 1.15fr 0.85fr;
  align-items: stretch;
}

.lesson-grid {
  align-items: start;
}

.reading-flow p + p,
.blog-post p + p {
  margin-top: 1rem;
}

.question-preview-grid,
.forum-list {
  display: grid;
  gap: 0.9rem;
}

.question-preview {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(23, 50, 77, 0.05);
}

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

.quiz-question {
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
}

.answer-option {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  padding: 0.9rem 1rem;
  border-radius: 16px;
  background: rgba(23, 50, 77, 0.04);
}

.answer-option input {
  width: auto;
  margin-top: 0.25rem;
}

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

.review-card.correct {
  border-color: rgba(15, 118, 110, 0.2);
  background: rgba(237, 252, 246, 0.92);
}

.review-card.incorrect {
  border-color: rgba(217, 93, 57, 0.22);
  background: rgba(255, 243, 239, 0.96);
}

.blog-post {
  max-width: 860px;
  margin: 0 auto;
}

.blog-post .lead {
  color: var(--muted);
}

.forum-detail h1,
.content-card h2,
.pricing-card h3,
.feature-card h3,
.curriculum-card h3,
.module-card h3,
.study-card h3 {
  margin-top: 0.2rem;
}

.empty-state {
  text-align: center;
}

.accessibility-mode {
  font-size: 1.1rem;
}

.accessibility-mode .content-card,
.accessibility-mode .page-intro,
.accessibility-mode .blog-post,
.accessibility-mode .module-card,
.accessibility-mode .study-card {
  background: #fffefb;
}

.accessibility-mode .reading-flow,
.accessibility-mode .blog-post {
  font-size: 1.14rem;
  line-height: 1.8;
}

@media (max-width: 1100px) {
  .hero,
  .dashboard-hero,
  .lesson-hero,
  .split-section,
  .lesson-grid,
  .pricing-grid,
  .testimonial-grid,
  .curriculum-grid,
  .module-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-panel {
    padding-left: 0;
  }

  .curriculum-card,
  .module-card,
  .study-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 1rem, 100%);
  }

  .site-header {
    position: static;
    flex-direction: column;
    align-items: stretch;
    border-radius: 28px;
  }

  .site-nav {
    justify-content: space-between;
  }

  .feature-grid,
  .stats-grid,
  .stats-grid.compact {
    grid-template-columns: 1fr;
  }

  .hero,
  .page-intro,
  .content-card,
  .feature-card,
  .pricing-card,
  .testimonial-card,
  .forum-card,
  .forum-comment,
  .review-card,
  .auth-card,
  .quiz-question {
    padding: 1.1rem;
  }

  .hero h1,
  .page-intro h1,
  .lesson-copy h1,
  .blog-post h1,
  .auth-card h1,
  .empty-state h1 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .hero-panel > img,
  .visual-stack img,
  .lesson-hero > img {
    min-height: 240px;
  }

  .visual-stack img:last-child {
    transform: none;
  }
}