:root {
  --sky: #ebf5ff;
  --paper: #fafdff;
  --white: #ffffff;
  --ink: #0a0d12;
  --charcoal: #181d27;
  --stone: #535862;
  --fog: #93979f;
  --line: rgba(83, 88, 98, 0.24);
  --blue: #357dff;
  --cornflower: #4fbeff;
  --orange: #f26110;
  --purple: #7d55d9;
  --yellow: #f4b400;
  --blue-wash: #e7f3ff;
  --orange-wash: #fff2eb;
  --purple-wash: #f3ebff;
  --yellow-wash: #fff8dd;
  --shadow: rgba(4, 69, 144, 0.08) 0 14px 20px 4px;
  --font: Inter, "Geist Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 18% 10%, rgba(79, 190, 255, 0.18), transparent 360px),
    radial-gradient(circle at 82% 6%, rgba(149, 82, 224, 0.12), transparent 320px),
    linear-gradient(180deg, #f6fbff 0%, var(--sky) 36%, #eef7ff 100%);
  color: var(--ink);
  font-family: var(--font);
  letter-spacing: 0;
}

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

p,
h1,
h2,
h3,
h4 {
  margin: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(800px, calc(100% - 64px));
  margin: 0 auto;
  padding: 19px 0;
  background: linear-gradient(180deg, rgba(246, 251, 255, 0.98), rgba(246, 251, 255, 0.88));
}

.brand,
.save-button,
.nav-links,
.trust-row,
.card-meta {
  display: flex;
  align-items: center;
}

.brand {
  gap: 8px;
  font-size: 12px;
  font-weight: 800;
}

.brand-bulb {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: var(--blue);
}

.brand-bulb svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.5;
}

.nav-links {
  justify-content: center;
  gap: 24px;
  color: #253043;
  font-size: 12px;
  font-weight: 700;
}

.save-button {
  justify-self: end;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  font-weight: 750;
  box-shadow: rgba(4, 69, 144, 0.04) 0 8px 16px;
}

main {
  width: min(800px, calc(100% - 64px));
  margin: 0 auto;
}

.hero {
  position: relative;
  display: grid;
  justify-items: center;
  padding: 42px 0 24px;
  text-align: center;
}

.hero h1 {
  position: relative;
  z-index: 1;
  max-width: 610px;
  font-size: 58px;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0;
  text-wrap: balance;
}

.underline {
  position: relative;
  display: inline-block;
}

.underline::after {
  position: absolute;
  right: 3%;
  bottom: 0;
  left: 3%;
  z-index: -1;
  height: 5px;
  border-radius: 999px;
  content: "";
  transform: rotate(-1.5deg);
}

.underline.orange::after {
  background: var(--orange);
}

.underline.blue::after {
  background: var(--blue);
}

.hero-subtitle {
  max-width: 440px;
  margin-top: 24px;
  color: #39475f;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 50px;
  margin-top: 22px;
  padding: 0 32px;
  border-radius: 999px;
  background: var(--charcoal);
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
  box-shadow: rgba(10, 13, 18, 0.8) 0 1px 2px 0, rgb(10, 13, 18) 0 0 0 1px;
}

.trust-row {
  justify-content: center;
  flex-wrap: wrap;
  gap: 38px;
  margin-top: 28px;
  color: #41516b;
  font-size: 11px;
  font-weight: 700;
}

.trust-row span {
  white-space: nowrap;
}

.hero-doodle {
  position: absolute;
  pointer-events: none;
}

.hero-doodle-left {
  top: 58px;
  left: 24px;
  width: 116px;
}

.hero-doodle-right {
  top: 190px;
  right: 10px;
  width: 136px;
}

.hero-doodle svg {
  width: 100%;
  height: auto;
}

.ray,
.bulb-ring,
.bulb-core,
.person,
.person-line {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ray.blue,
.bulb-ring {
  stroke: var(--blue);
}

.ray.yellow,
.bulb-core {
  stroke: var(--yellow);
}

.ray,
.bulb-ring,
.bulb-core {
  stroke-width: 7;
}

.person {
  fill: var(--white);
  stroke: var(--ink);
  stroke-width: 5;
}

.person-line {
  stroke: var(--ink);
  stroke-width: 5;
}

.speech {
  position: absolute;
  top: -42px;
  right: 10px;
  padding: 12px 16px;
  border: 2px solid rgba(125, 85, 217, 0.28);
  border-radius: 15px;
  background: var(--purple-wash);
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.4;
  text-align: left;
}

.map-card,
.why-card,
.final-cta,
.source-note {
  border: 1px solid var(--line);
  border-radius: 32px;
  background: rgba(250, 253, 255, 0.86);
  box-shadow: var(--shadow);
}

.map-card {
  padding: 24px 20px 20px;
}

.section-title h2 {
  font-size: 24px;
  line-height: 1.15;
}

.section-title p {
  margin-top: 6px;
  color: var(--stone);
  font-size: 12px;
  font-weight: 650;
}

.section-title.small h2 {
  font-size: 18px;
}

.route-line {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
  margin-top: 22px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.route-line article {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 8px;
  min-width: 0;
  text-align: center;
}

.route-line article:not(:last-child)::after {
  position: absolute;
  top: 38px;
  right: -8px;
  color: #66748a;
  content: "→";
  font-size: 15px;
  font-weight: 800;
}

.icon-shell {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  border: 1px solid rgba(83, 88, 98, 0.22);
  border-radius: 999px;
  background: var(--white);
}

.icon-shell svg {
  width: 33px;
  height: 33px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3.2;
}

.icon-shell.blue {
  color: var(--blue);
}

.icon-shell.orange {
  color: var(--orange);
}

.icon-shell.purple {
  color: var(--purple);
}

.icon-shell.yellow {
  color: var(--yellow);
}

.route-line b,
.badge {
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: var(--white);
  font-weight: 850;
}

.route-line b {
  width: 22px;
  height: 22px;
  background: var(--blue);
  font-size: 11px;
}

.route-line article:nth-child(2) b,
.route-line article:nth-child(5) b {
  background: var(--orange);
}

.route-line article:nth-child(3) b,
.route-line article:nth-child(6) b {
  background: var(--purple);
}

.route-line article:nth-child(7) b {
  background: var(--yellow);
}

.route-line h3 {
  font-size: 12px;
}

.route-line p {
  color: var(--stone);
  font-size: 9px;
  font-weight: 700;
  line-height: 1.45;
}

.chapters,
.playbook,
.video-library,
.plan,
.why-card,
.final-cta,
.source-note {
  margin-top: 30px;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 6px;
}

.chapter-card {
  position: relative;
  min-height: 230px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(250, 253, 255, 0.92);
  box-shadow: rgba(4, 69, 144, 0.04) 0 10px 18px;
}

.badge {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 24px;
  height: 24px;
  font-size: 13px;
}

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

.badge.orange {
  background: var(--orange);
}

.badge.purple {
  background: var(--purple);
}

.chapter-card > div:first-of-type {
  padding-left: 36px;
}

.chapter-card h3 {
  font-size: 21px;
  line-height: 1.16;
}

.chapter-card p {
  margin-top: 5px;
  color: var(--stone);
  font-size: 11px;
  font-weight: 650;
}

.chapter-card ul {
  display: grid;
  gap: 7px;
  margin: 20px 0 0;
  padding-left: 15px;
  color: #2b374d;
  font-size: 11px;
  font-weight: 650;
  line-height: 1.35;
}

.card-art {
  position: absolute;
  right: 15px;
  bottom: 42px;
  width: 96px;
  height: 86px;
}

.card-meta {
  position: absolute;
  right: 15px;
  bottom: 11px;
  left: 15px;
  justify-content: space-around;
  min-height: 30px;
  border-radius: 8px;
  background: var(--blue-wash);
  color: var(--blue);
  font-size: 10px;
  font-weight: 800;
}

.orange-meta {
  background: var(--orange-wash);
  color: var(--orange);
}

.purple-meta {
  background: var(--purple-wash);
  color: var(--purple);
}

.playbook {
  display: grid;
  gap: 16px;
}

.playbook > .section-title {
  margin-bottom: 4px;
}

.play-step {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(250, 253, 255, 0.92);
  box-shadow: rgba(4, 69, 144, 0.05) 0 10px 18px;
  padding: 24px;
}

.play-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.play-number {
  display: inline-grid;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 999px;
  color: var(--white);
  font-size: 15px;
  font-weight: 900;
}

.play-number.blue {
  background: var(--blue);
}

.play-number.orange {
  background: var(--orange);
}

.play-number.purple {
  background: var(--purple);
}

.play-head h3 {
  font-size: 24px;
  line-height: 1.15;
}

.play-head p {
  margin-top: 6px;
  color: var(--stone);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.5;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.detail-grid > div {
  border: 1px solid rgba(83, 88, 98, 0.18);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.76);
  padding: 16px;
}

.detail-grid h4 {
  font-size: 15px;
  line-height: 1.2;
}

.detail-grid ul {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding-left: 18px;
  color: #263246;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.55;
}

.pass-box {
  background: var(--blue-wash) !important;
}

.pass-box.orange {
  background: var(--orange-wash) !important;
}

.pass-box.purple {
  background: var(--purple-wash) !important;
}

.pass-box p {
  margin-top: 10px;
  color: #263246;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.55;
}

.pass-box b {
  display: block;
  margin-top: 12px;
  color: var(--ink);
  font-size: 12px;
  line-height: 1.5;
}

.why-card {
  padding: 24px;
  text-align: center;
}

.why-card h2,
.final-cta h2 {
  font-size: 21px;
  line-height: 1.16;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.why-grid article {
  display: grid;
  justify-items: center;
  gap: 6px;
}

.why-icon {
  font-size: 26px;
  font-weight: 850;
}

.why-icon.blue {
  color: var(--blue);
}

.why-icon.orange {
  color: var(--orange);
}

.why-icon.purple {
  color: var(--purple);
}

.why-icon.yellow {
  color: var(--yellow);
}

.why-grid h3 {
  font-size: 14px;
}

.why-grid p {
  font-size: 11px;
  line-height: 1.45;
}

.why-grid p,
.day-grid p,
.final-cta p,
.source-note p,
.video-detail p,
.video-meta {
  color: var(--stone);
  font-weight: 650;
  line-height: 1.48;
}

.video-library {
  display: grid;
  gap: 16px;
}

.video-controls {
  display: flex;
  gap: 12px;
  align-items: center;
}

.video-controls input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(250, 253, 255, 0.92);
  color: var(--ink);
  font: 700 13px/1 var(--font);
  padding: 0 18px;
}

.video-controls span {
  flex: 0 0 auto;
  color: var(--stone);
  font-size: 12px;
  font-weight: 800;
}

.video-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 14px;
  min-height: 560px;
}

.video-list,
.video-detail {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(250, 253, 255, 0.92);
  box-shadow: rgba(4, 69, 144, 0.04) 0 10px 18px;
}

.video-list {
  display: grid;
  align-content: start;
  gap: 8px;
  max-height: 720px;
  overflow: auto;
  padding: 12px;
}

.video-item {
  display: grid;
  gap: 4px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-family: var(--font);
  padding: 11px;
  text-align: left;
}

.video-item:hover,
.video-item[aria-current="true"] {
  border-color: rgba(53, 125, 255, 0.28);
  background: var(--blue-wash);
}

.video-item b {
  font-size: 13px;
  line-height: 1.35;
}

.video-item span {
  color: var(--stone);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.35;
}

.video-detail {
  max-height: 720px;
  overflow: auto;
  padding: 24px;
}

.video-detail h3 {
  font-size: 26px;
  line-height: 1.18;
}

.video-meta {
  margin-top: 8px;
  font-size: 12px;
}

.video-detail a {
  display: inline-flex;
  margin-top: 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}

.video-article {
  display: grid;
  gap: 16px;
  margin-top: 20px;
  color: #263246;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.82;
}

.video-article p {
  margin: 0;
}

.plan {
  margin-top: 20px;
  padding-bottom: 0;
}

.day-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
  overflow-x: auto;
  padding-bottom: 10px;
}

.day-grid article {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: start;
  min-height: 140px;
  padding: 14px 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(250, 253, 255, 0.9);
  text-align: center;
}

.day-grid span {
  order: 1;
  color: var(--blue);
  font-size: 11px;
  font-weight: 850;
}

.day-grid article:nth-child(2n) span {
  color: var(--orange);
}

.day-grid article:nth-child(3n) span {
  color: var(--purple);
}

.day-grid article::before {
  order: 2;
  margin-top: 8px;
  color: var(--blue);
  content: "☼";
  font-size: 27px;
  font-weight: 850;
  line-height: 1;
}

.day-grid article:nth-child(2)::before {
  color: var(--orange);
  content: "◎";
}

.day-grid article:nth-child(3)::before {
  color: var(--purple);
  content: "▤";
}

.day-grid article:nth-child(4)::before {
  color: var(--purple);
  content: "⚒";
}

.day-grid article:nth-child(5)::before {
  content: "A";
}

.day-grid article:nth-child(6)::before {
  color: var(--orange);
  content: "◢";
}

.day-grid article:nth-child(7)::before {
  color: var(--yellow);
  content: "↗";
}

.day-grid article:not(:last-child)::after {
  position: absolute;
  top: 64px;
  right: -15px;
  z-index: 2;
  color: var(--orange);
  content: "→";
  font-size: 13px;
  font-weight: 850;
}

.day-grid b {
  order: 3;
  margin-top: 5px;
  font-size: 12px;
}

.day-grid p {
  order: 4;
  margin-top: 8px;
  font-size: 9px;
}

.final-cta {
  position: relative;
  display: grid;
  min-height: 176px;
  align-items: start;
  justify-items: center;
  padding: 0 210px 20px;
  overflow: hidden;
  text-align: center;
  margin-top: 0;
}

.final-cta p {
  margin-top: 8px;
}

.final-cta .primary-button {
  min-height: 44px;
  margin-top: 12px;
  padding: 0 30px;
}

.final-person,
.rocket {
  position: absolute;
  bottom: -10px;
  width: 118px;
  height: 118px;
  border-radius: 50%;
}

.final-person {
  left: 34px;
  background:
    radial-gradient(circle at 50% 34%, var(--white) 0 36px, transparent 37px),
    radial-gradient(circle at 50% 66%, var(--white) 0 58px, transparent 59px);
  border: 5px solid transparent;
}

.final-person::before {
  position: absolute;
  top: 22px;
  left: 42px;
  color: var(--blue);
  content: "⚑";
  font-size: 44px;
  transform: rotate(-10deg);
}

.rocket {
  right: 42px;
  background:
    radial-gradient(circle at 42% 46%, var(--white) 0 20px, transparent 21px),
    conic-gradient(from 210deg, var(--blue), var(--white), var(--orange), var(--blue));
  clip-path: polygon(50% 0, 82% 42%, 66% 100%, 50% 78%, 34% 100%, 18% 42%);
  transform: rotate(28deg);
}

.source-note {
  margin-bottom: 32px;
  padding: 18px 24px;
  background: rgba(211, 246, 227, 0.78);
}

@media (max-width: 900px) {
  .final-cta {
    padding-right: 80px;
    padding-left: 80px;
  }
}

@media (max-width: 760px) {
  .topbar,
  main {
    width: min(100% - 28px, 1280px);
  }

  .topbar {
    grid-template-columns: auto 1fr;
    padding: 16px 0;
  }

  .brand span:last-child {
    display: none;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding: 50px 0 36px;
  }

  .hero-doodle {
    display: none;
  }

  .hero h1 {
    font-size: 42px;
    line-height: 1.08;
    overflow-wrap: anywhere;
  }

  .hero-subtitle {
    font-size: 17px;
  }

  .primary-button {
    min-height: 54px;
    padding: 0 28px;
    font-size: 16px;
  }

  .trust-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    margin-top: 32px;
    text-align: left;
  }

  .map-card,
  .why-card,
  .final-cta,
  .source-note {
    border-radius: 24px;
  }

  .map-card {
    padding: 24px 18px 28px;
  }

  .route-line {
    grid-template-columns: repeat(7, 132px);
  }

  .chapter-grid,
  .why-grid,
  .detail-grid,
  .video-shell {
    grid-template-columns: 1fr;
  }

  .video-controls {
    align-items: stretch;
    flex-direction: column;
  }

  .video-shell {
    min-height: 0;
  }

  .video-list,
  .video-detail {
    max-height: none;
  }

  .video-detail {
    padding: 18px;
  }

  .play-step {
    padding: 18px;
  }

  .play-head {
    gap: 10px;
  }

  .play-head h3 {
    font-size: 22px;
  }

  .detail-grid ul,
  .pass-box p,
  .pass-box b {
    font-size: 13px;
  }

  .chapter-card {
    min-height: 360px;
  }

  .card-art {
    opacity: 0.88;
  }

  .day-grid {
    grid-template-columns: repeat(7, 150px);
  }

  .final-cta {
    min-height: 280px;
    padding: 34px 22px 150px;
  }

  .final-person {
    left: 10px;
    width: 110px;
    height: 110px;
  }

  .rocket {
    right: 18px;
    width: 110px;
    height: 110px;
  }
}