:root {
  --navy: #071636;
  --navy-soft: #0b214d;
  --navy-warm: #102b61;
  --ivory: #f4fbfc;
  --ivory-muted: #e7f5f6;
  --ink: #17254a;
  --muted: #5a6c86;
  --teal: #08aaa5;
  --teal-bright: #21c7bd;
  --teal-soft: rgba(8, 170, 165, 0.18);
  --line: rgba(32, 64, 144, 0.15);
  --dark-line: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 64px rgba(7, 22, 54, 0.2);
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Inter", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--ivory);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
}

body.modal-open {
  overflow: hidden;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

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

.section-shell {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  min-height: 76px;
  align-items: center;
  gap: 34px;
  padding: 10px max(24px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--dark-line);
  background: rgba(7, 22, 54, 0.94);
  color: #fff;
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  color: #f4fbfc;
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.brand img {
  width: 68px;
  height: 54px;
  border-radius: 6px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.main-nav a,
.header-download {
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.main-nav a:hover {
  color: var(--teal-bright);
}

.header-download {
  padding: 9px 15px;
  border: 1px solid rgba(33, 199, 189, 0.62);
  color: var(--teal-bright);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.header-download:hover {
  border-color: var(--teal-bright);
  background: rgba(33, 199, 189, 0.12);
}

.site-header .main-nav a {
  white-space: nowrap;
}

.hero {
  display: grid;
  min-height: 720px;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  gap: 60px;
  padding-block: 72px;
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: 76px;
  left: 0;
  width: 100%;
  height: 720px;
  background:
    radial-gradient(circle at 18% 22%, rgba(8, 170, 165, 0.28), transparent 30%),
    linear-gradient(132deg, #071636 0%, #102b61 68%, #071636 100%);
  content: "";
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  font-family: var(--serif);
}

h1 {
  margin-bottom: 16px;
  color: #fff;
  font-size: clamp(4.4rem, 8.7vw, 7.4rem);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 0.86;
}

h1 em {
  display: block;
  color: var(--teal-bright);
  font-weight: 500;
}

.hero-subtitle {
  max-width: 630px;
  margin-bottom: 22px;
  color: #c9fbf7;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.3vw, 2rem);
  line-height: 1.2;
}

.hero-text {
  max-width: 620px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 1rem;
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  background: var(--teal);
  color: #fff;
}

.button-primary:hover {
  background: var(--teal-bright);
  color: #071636;
}

.button-secondary {
  border-color: rgba(8, 170, 165, 0.55);
  background: transparent;
  color: var(--teal);
}

.button-secondary:hover {
  border-color: var(--teal);
  background: rgba(8, 170, 165, 0.12);
}

.book-meta {
  display: flex;
  gap: 34px;
  margin: 48px 0 0;
  padding: 0;
  color: rgba(255, 255, 255, 0.54);
  list-style: none;
}

.book-meta li {
  display: grid;
  gap: 3px;
}

.book-meta strong {
  color: var(--teal-bright);
  font-family: var(--serif);
  font-size: 2.15rem;
  font-weight: 600;
  line-height: 1;
}

.book-meta span {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.access-section {
  padding-block: 64px;
}

.access-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 390px);
  gap: 28px;
  align-items: center;
  padding: 30px;
  border: 1px solid rgba(8, 170, 165, 0.28);
  background: #fbffff;
  box-shadow: 0 18px 45px rgba(32, 64, 144, 0.12);
}

.access-panel h2 {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: clamp(2.5rem, 4vw, 3.6rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 0.96;
}

.access-panel p:not(.eyebrow) {
  margin-bottom: 0;
  color: var(--muted);
}

.access-form {
  display: grid;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  background: #f4fbfc;
}

.access-form[hidden] {
  display: none;
}

.access-options {
  display: grid;
  gap: 14px;
}

.access-form-title {
  margin-bottom: 2px;
  color: var(--teal);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.access-form label {
  color: var(--ink);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.access-form input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid rgba(32, 64, 144, 0.2);
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.access-form input:focus {
  outline: 2px solid rgba(8, 170, 165, 0.32);
  outline-offset: 2px;
}

.access-status {
  min-height: 2.6em;
  margin: 0;
  padding: 12px 14px;
  border: 1px solid rgba(8, 170, 165, 0.4);
  border-left: 5px solid var(--teal);
  background: rgba(8, 170, 165, 0.12);
  color: var(--navy-warm);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.45;
}

.access-link-button {
  justify-self: start;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--teal);
  cursor: pointer;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.access-link-button:hover {
  color: var(--navy-warm);
}

.cover-stage {
  position: relative;
  display: grid;
  justify-items: center;
}

.cover-glow {
  position: absolute;
  top: 16%;
  width: 86%;
  height: 70%;
  border-radius: 50%;
  background: rgba(8, 170, 165, 0.32);
  filter: blur(64px);
}

.book-cover {
  position: relative;
  width: min(382px, 86%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 26px 32px 70px rgba(0, 0, 0, 0.54);
  transform: rotate(1.8deg);
}

.cover-note {
  position: relative;
  margin: 27px 0 0;
  color: rgba(255, 255, 255, 0.44);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.quote-band {
  padding: 32px 0 30px;
  border-top: 1px solid rgba(8, 170, 165, 0.32);
  background: var(--navy);
  text-align: center;
}

.quote-band p {
  margin-bottom: 4px;
  color: var(--teal-bright);
  font-family: var(--serif);
  font-size: clamp(1.55rem, 3.2vw, 2.3rem);
  font-weight: 500;
  line-height: 1.1;
}

.quote-band span {
  color: rgba(255, 255, 255, 0.42);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.journey,
.video-section {
  padding-block: 110px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 38px;
}

.section-heading h2 {
  margin-bottom: 12px;
  color: var(--ink);
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 0.94;
}

.section-heading p:not(.eyebrow) {
  margin-bottom: 0;
  color: var(--muted);
}

.section-heading-row {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
}

.section-heading-row > div:first-child {
  max-width: 750px;
}

.journey-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.journey-card {
  min-height: 300px;
  padding: 30px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.36);
  color: inherit;
  cursor: pointer;
  font: inherit;
  text-align: left;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.journey-card:hover {
  border-color: rgba(8, 170, 165, 0.58);
  box-shadow: 0 20px 45px rgba(32, 64, 144, 0.12);
  transform: translateY(-5px);
}

.journey-card-featured {
  border-color: rgba(8, 170, 165, 0.56);
  background: #f9ffff;
}

.journey-card.is-active {
  border-color: rgba(8, 170, 165, 0.82);
  background: #f9ffff;
  box-shadow: 0 20px 45px rgba(32, 64, 144, 0.16);
}

.journey-card.is-locked {
  cursor: not-allowed;
  opacity: 0.56;
}

.day-number,
.reader-kicker {
  margin-bottom: 18px;
  color: var(--teal);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.journey-card h3,
.reader-aside h3 {
  margin-bottom: 12px;
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1;
}

.journey-card p:not(.day-number),
.reader-aside p:not(.reader-kicker) {
  color: var(--muted);
  font-size: 0.92rem;
}

.journey-card span {
  display: inline-block;
  margin-top: 22px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--teal);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.journey-card small {
  display: block;
  margin-top: 14px;
  color: var(--ink);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.reader-section {
  padding-block: 104px;
  background: #e6f4f6;
}

.reader-layout {
  display: grid;
  grid-template-columns: 255px minmax(0, 1fr);
  gap: 18px;
}

.reader-aside {
  align-self: start;
  overflow: hidden;
  border: 1px solid rgba(8, 170, 165, 0.3);
  background: #f8ffff;
}

.reader-aside img {
  width: 100%;
  aspect-ratio: 0.72;
  object-fit: cover;
}

.reader-aside div {
  padding: 22px;
}

.reader-aside .reader-kicker {
  margin-bottom: 10px;
}

.reader-aside h3 {
  font-size: 1.9rem;
}

.reader-aside a {
  color: var(--teal);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.reader-aside a span {
  margin-left: 4px;
  font-size: 1.1rem;
}

.pdf-panel {
  overflow: hidden;
  border: 1px solid rgba(32, 64, 144, 0.18);
  background: #fff;
  box-shadow: var(--shadow);
}

.pdf-toolbar {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: #f3fbfc;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.pdf-toolbar div {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pdf-toolbar a {
  color: var(--teal);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #08aaa5;
  box-shadow: 0 0 0 3px rgba(8, 170, 165, 0.16);
}

.pdf-panel iframe,
#pdf-reader {
  display: block;
  width: 100%;
  height: 730px;
  border: 0;
}

.pdf-toolbar button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--teal);
  cursor: pointer;
  font-size: inherit;
  font-weight: 800;
  letter-spacing: inherit;
  text-transform: inherit;
}

.progress-band {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(260px, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-bottom: 22px;
  padding: 22px;
  border: 1px solid rgba(8, 170, 165, 0.26);
  background: #f9ffff;
}

.progress-band h3 {
  margin-bottom: 0;
  font-size: 2rem;
  line-height: 1;
}

.progress-meter {
  overflow: hidden;
  height: 12px;
  border-radius: 999px;
  background: rgba(32, 64, 144, 0.1);
}

.progress-meter span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--teal), var(--teal-bright));
  transition: width 0.3s ease;
}

.reset-button {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(8, 170, 165, 0.38);
  background: transparent;
  color: var(--teal);
  cursor: pointer;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.part-section {
  padding-block: 100px;
  background: #e6f4f6;
}

.part-detail,
.evaluation-card,
.locked-message,
.principle-panel {
  border: 1px solid rgba(8, 170, 165, 0.26);
  background: #fbffff;
  box-shadow: 0 18px 45px rgba(32, 64, 144, 0.1);
}

.locked-message {
  padding: 34px;
}

.locked-message h3,
.principle-panel h3,
.evaluation-card h3,
.evaluation-form h3,
.result-box h3 {
  margin-bottom: 10px;
  font-size: 2rem;
  line-height: 1;
}

.part-detail {
  overflow: hidden;
  padding: 18px;
}

.part-grid {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 18px;
}

.principle-panel {
  align-self: start;
  padding: 24px;
  box-shadow: none;
}

.principle-list {
  display: grid;
  gap: 10px;
  margin: 0 0 24px;
  padding-left: 20px;
  color: var(--muted);
  font-size: 0.92rem;
}

.part-videos {
  margin-top: 18px;
}

.evaluation-section {
  padding-block: 98px;
}

.evaluation-card {
  padding: 30px;
}

.evaluation-card p {
  color: var(--muted);
}

.evaluation-form {
  display: grid;
  gap: 18px;
}

.question-block {
  min-width: 0;
  margin: 0;
  padding: 20px;
  border: 1px solid var(--line);
  background: #fff;
}

.question-block legend {
  padding-inline: 8px;
  color: var(--teal);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.question-block h4 {
  margin: 0 0 15px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.4;
}

.option-list {
  display: grid;
  gap: 10px;
}

.option-list label {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 13px;
  border: 1px solid rgba(32, 64, 144, 0.12);
  background: #f8ffff;
  color: var(--muted);
  cursor: pointer;
}

.option-list input {
  margin-top: 4px;
  accent-color: var(--teal);
}

.result-box {
  padding: 20px;
  border: 1px solid var(--line);
  background: #fff;
}

.result-box.is-pass {
  border-color: rgba(8, 170, 165, 0.5);
  background: rgba(8, 170, 165, 0.08);
}

.result-box.is-fail {
  border-color: rgba(154, 72, 72, 0.34);
  background: rgba(154, 72, 72, 0.08);
}

.result-box ul {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.pdf-fallback {
  display: none;
  padding: 14px 16px;
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.pdf-fallback a {
  color: var(--teal);
  font-weight: 700;
}

.video-section {
  background: var(--ivory);
}

.video-count {
  min-width: 170px;
  padding-left: 20px;
  border-left: 1px solid rgba(8, 170, 165, 0.46);
}

.video-count strong {
  display: block;
  color: var(--teal);
  font-family: var(--serif);
  font-size: 3.3rem;
  font-weight: 600;
  line-height: 0.9;
}

.video-count span {
  color: var(--muted);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 25px;
}

.filter-chip {
  min-height: 38px;
  padding: 0 15px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.filter-chip:hover,
.filter-chip.is-active {
  border-color: var(--teal);
  background: var(--teal);
  color: #fff;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.video-card {
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fbffff;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.video-card:hover {
  border-color: rgba(8, 170, 165, 0.64);
  box-shadow: 0 18px 38px rgba(32, 64, 144, 0.14);
  transform: translateY(-4px);
}

.video-thumbnail {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #071636;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
  transition: opacity 0.25s ease, transform 0.35s ease;
}

.video-card:hover .video-thumbnail img {
  opacity: 0.86;
  transform: scale(1.04);
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 50%;
  background: rgba(7, 22, 54, 0.72);
  color: var(--teal-bright);
  cursor: pointer;
  transform: translate(-50%, -50%);
  transition: background 0.2s ease, transform 0.2s ease;
}

.play-button::before {
  margin-left: 4px;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 11px solid currentColor;
  content: "";
}

.play-button:hover {
  background: rgba(8, 170, 165, 0.9);
  color: #fff;
  transform: translate(-50%, -50%) scale(1.08);
}

.video-card-copy {
  padding: 18px;
}

.video-card-copy .video-label {
  margin-bottom: 8px;
  color: var(--teal);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.video-card-copy h3 {
  margin-bottom: 16px;
  font-size: 1.65rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
}

.video-links {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.video-links button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--teal);
  cursor: pointer;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.video-links button:hover {
  color: #203f90;
}

.site-footer {
  padding-block: 30px;
  border-top: 1px solid var(--dark-line);
  background: var(--navy);
  color: rgba(255, 255, 255, 0.64);
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-inner img {
  width: 76px;
  height: 68px;
  border-radius: 6px;
  object-fit: contain;
}

.footer-inner p {
  margin-bottom: 0;
  color: #fff;
  font-family: var(--serif);
  font-size: 1.4rem;
  line-height: 1;
}

.footer-inner span {
  color: rgba(255, 255, 255, 0.42);
  font-size: 0.66rem;
}

.footer-inner a {
  margin-left: auto;
  color: var(--teal-bright);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.video-modal {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: none;
  place-items: center;
  padding: 24px;
}

.video-modal.is-open {
  display: grid;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(3, 13, 34, 0.9);
  cursor: pointer;
}

.modal-card {
  position: relative;
  width: min(940px, 100%);
  overflow: hidden;
  border: 1px solid rgba(33, 199, 189, 0.46);
  background: var(--navy-soft);
  box-shadow: 0 28px 100px rgba(0, 0, 0, 0.72);
}

.modal-header {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 18px 11px 22px;
  color: #fff;
}

.modal-header p {
  margin-bottom: 0;
  color: var(--teal);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.modal-header h2 {
  margin-bottom: 0;
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
}

.modal-close {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: rgba(255, 255, 255, 0.76);
  cursor: pointer;
  font-size: 1.8rem;
  line-height: 1;
}

.modal-close:hover {
  border-color: var(--teal);
  color: var(--teal-bright);
}

.video-frame {
  aspect-ratio: 16 / 9;
  background: #000;
}

.video-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 980px) {
  .main-nav {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr) minmax(270px, 0.7fr);
    gap: 40px;
  }

  .hero::before {
    height: 650px;
  }

  .journey-grid,
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .journey-card:last-child {
    grid-column: 1 / -1;
  }

  .reader-layout {
    grid-template-columns: 1fr;
  }

  .progress-band,
  .part-grid,
  .access-panel {
    grid-template-columns: 1fr;
  }

  .reader-aside {
    display: grid;
    grid-template-columns: 145px 1fr;
  }

  .reader-aside img {
    height: 100%;
  }
}

@media (max-width: 720px) {
  .section-shell {
    width: min(100% - 30px, 600px);
  }

  .site-header {
    min-height: 66px;
    padding-inline: 15px;
  }

  .brand span {
    display: none;
  }

  .brand img {
    width: 56px;
    height: 44px;
  }

  .header-download {
    padding: 8px 10px;
    font-size: 0.62rem;
  }

  .hero {
    display: block;
    padding-block: 58px 66px;
  }

  .hero::before {
    top: 66px;
    height: 970px;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(3.25rem, 14vw, 4rem);
    letter-spacing: -0.025em;
    line-height: 0.92;
  }

  .hero-text {
    max-width: 330px;
    font-size: 0.94rem;
  }

  .hero-subtitle {
    max-width: 330px;
    font-size: 1.22rem;
  }

  .book-meta {
    gap: 26px;
    margin-top: 35px;
  }

  .cover-stage {
    margin-top: 55px;
  }

  .book-cover {
    width: min(300px, 84%);
  }

  .journey,
  .video-section {
    padding-block: 78px;
  }

  .section-heading-row {
    display: block;
  }

  .section-heading-row > .button {
    margin-top: 18px;
  }

  .section-heading h2 {
    font-size: clamp(2.9rem, 13vw, 4rem);
  }

  .journey-grid,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .journey-card:last-child {
    grid-column: auto;
  }

  .reader-section {
    padding-block: 74px;
  }

  .reader-aside {
    grid-template-columns: 105px 1fr;
  }

  .reader-aside div {
    padding: 17px;
  }

  .reader-aside p:not(.reader-kicker) {
    display: none;
  }

  .pdf-panel iframe,
  #pdf-reader {
    height: 560px;
  }

  .progress-band {
    gap: 16px;
    padding: 18px;
  }

  .progress-band h3 {
    font-size: 1.8rem;
  }

  .pdf-toolbar {
    align-items: start;
    flex-direction: column;
    gap: 4px;
    justify-content: center;
    min-height: 61px;
  }

  .video-count {
    display: none;
  }

  .filter-bar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .filter-chip:first-child {
    grid-column: 1 / -1;
  }

  .footer-inner {
    align-items: start;
    flex-wrap: wrap;
  }

  .footer-inner img {
    width: 64px;
    height: 58px;
  }

  .footer-inner div {
    max-width: calc(100% - 60px);
  }

  .footer-inner a {
    width: 100%;
    margin: 6px 0 0;
  }

  .video-modal {
    padding: 12px;
  }

  .modal-header {
    min-height: 68px;
    padding: 11px 11px 10px 16px;
  }

  .modal-header h2 {
    font-size: 1.55rem;
  }
}