/* =========================================================
   CMG — GLOBAL
========================================================= */

:root {
  --charcoal: #111315;
  --charcoal-2: #181b1e;
  --charcoal-3: #202428;

  --cream: #f4f3ee;
  --cream-dark: #deddd6;

  --muted: #aeb5bb;
  --muted-dark: #737a80;

  --gold: #a7854f;
  --gold-light: #c2a36f;

  --blue: #2e74a8;
  --blue-light: #4d91c4;

  --border: rgba(244, 243, 238, 0.13);
  --border-gold: rgba(167, 133, 79, 0.45);

  --max-width: 1400px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--charcoal);
  color: var(--cream);
  font-family: "Inter", sans-serif;
  line-height: 1.6;
}

button,
input {
  font: inherit;
}

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

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

button {
  cursor: pointer;
}

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


/* =========================================================
   HEADER
========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;

  min-height: 86px;
  padding: 14px 4vw;

  display: flex;
  align-items: center;
  justify-content: space-between;

  background: rgba(17, 19, 21, 0.94);
  border-bottom: 1px solid var(--border);

  backdrop-filter: blur(14px);
}

.brand {
  width: 190px;
}

.brand img {
  width: 100%;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav > a,
.nav-drop-button {
  border: 0;
  background: none;

  color: var(--muted);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;

  transition: color 0.25s ease;
}

.main-nav > a:hover,
.nav-drop-button:hover {
  color: var(--cream);
}

.nav-dropdown {
  position: relative;
}

.nav-drop-button {
  display: flex;
  align-items: center;
  gap: 7px;
}

.nav-drop-button span {
  color: var(--gold-light);
  font-size: 15px;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 20px);
  left: 50%;

  min-width: 190px;

  transform: translate(-50%, -8px);

  padding: 10px;

  background: #17191c;
  border: 1px solid var(--border);

  opacity: 0;
  pointer-events: none;

  transition: 0.25s ease;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.open .dropdown-menu {
  transform: translate(-50%, 0);
  opacity: 1;
  pointer-events: auto;
}

.dropdown-menu a {
  display: block;
  padding: 11px 12px;

  color: var(--muted);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 14px;
  letter-spacing: 1px;
}

.dropdown-menu a:hover {
  color: var(--cream);
  background: rgba(255,255,255,0.04);
}

.menu-toggle {
  display: none;

  width: 42px;
  height: 42px;

  background: none;
  border: 1px solid var(--border);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 1px;

  margin: 5px auto;

  background: var(--cream);
}


/* =========================================================
   SHARED
========================================================= */

.module {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 130px 5vw;
}

.section-header {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 30px;
  margin-bottom: 65px;
}

.section-number {
  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 14px;
  letter-spacing: 2px;
}

.eyebrow {
  margin: 0 0 18px;

  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
}

h1,
h2,
h3 {
  margin: 0;

  font-family: "Barlow Condensed", sans-serif;
  font-weight: 500;

  line-height: 0.95;
}

h2 {
  max-width: 950px;
  font-size: clamp(48px, 7vw, 94px);
  letter-spacing: -1px;
}

.section-header p:not(.eyebrow) {
  max-width: 680px;
  margin-top: 25px;

  color: var(--muted);
  font-size: 16px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;

  min-height: 52px;
  padding: 0 22px;

  border: 1px solid var(--gold);
  background: transparent;

  color: var(--cream);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1.5px;

  transition: 0.25s ease;
}

.primary-button {
  background: var(--gold);
  color: var(--charcoal);
}

.primary-button:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
}

.secondary-button:hover {
  background: rgba(167,133,79,0.1);
}


/* =========================================================
   HERO
========================================================= */

.hero {
  position: relative;
  min-height: calc(100vh - 86px);

  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 50px;

  padding: 8vw 6vw;

  overflow: hidden;
}

.hero-grid,
.conversation-grid {
  position: absolute;
  inset: 0;

  opacity: 0.18;

  background-image:
    linear-gradient(rgba(77,145,196,0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77,145,196,0.18) 1px, transparent 1px);

  background-size: 70px 70px;

  mask-image: linear-gradient(to right, transparent, black 30%, black 70%, transparent);
}

.hero-copy {
  position: relative;
  z-index: 2;

  align-self: center;
  max-width: 650px;
}

.hero-copy h1 {
  font-size: clamp(60px, 8vw, 125px);
  letter-spacing: -2px;
}

.hero-intro {
  max-width: 520px;
  margin: 30px 0;

  color: var(--muted);
  font-size: 18px;
}


/* =========================================================
   NOTEBOOK
========================================================= */

.notebook-scene {
  position: relative;

  min-height: 640px;

  display: flex;
  align-items: center;
  justify-content: center;

  perspective: 1600px;
}

.desk-light {
  position: absolute;

  width: 75%;
  height: 75%;

  background: radial-gradient(
    ellipse,
    rgba(255, 221, 150, 0.12),
    transparent 70%
  );

  filter: blur(10px);
}

.notebook {
  position: relative;

  width: min(650px, 90%);
  min-height: 620px;

  padding: 12px;

  background: #27231d;

  box-shadow:
    0 35px 80px rgba(0,0,0,0.55),
    0 10px 25px rgba(0,0,0,0.35);

  transform: rotate(-2deg);
}

.notebook-page {
  position: relative;

  min-height: 596px;

  padding: 35px 42px;

  background:
    linear-gradient(
      rgba(40, 47, 51, 0.08),
      rgba(40, 47, 51, 0.08)
    ),
    #e9e5d7;

  color: #25282a;

  box-shadow: inset 0 0 40px rgba(0,0,0,0.08);
}

.notebook-spine {
  position: absolute;
  top: 0;
  left: 10px;
  bottom: 0;

  width: 4px;

  background: rgba(0,0,0,0.18);
}

.notebook-header,
.notebook-footer {
  display: flex;
  justify-content: space-between;

  color: #62666a;

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1.5px;
}

.notebook-rule {
  height: 1px;
  margin: 16px 0 30px;

  background: rgba(37,40,42,0.2);
}

.notebook-label {
  margin: 0 0 8px;

  color: #927441;

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
}

.notebook-page h2 {
  font-family: "Playfair Display", serif;
  font-size: clamp(42px, 5vw, 65px);
  line-height: 1;
}

.notebook-page > p:not(.notebook-label) {
  max-width: 510px;
  margin: 20px 0;

  color: #55595b;
  font-size: 14px;
}

.story-prompt {
  margin: 28px 0 12px;

  color: #777b7e;

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
}

.story-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.story-options button {
  display: flex;
  align-items: center;
  gap: 10px;

  padding: 11px;

  border: 1px solid rgba(37,40,42,0.18);
  background: rgba(255,255,255,0.24);

  color: #313538;

  text-align: left;

  font-family: "Barlow Condensed", sans-serif;
  font-size: 13px;
  letter-spacing: 0.8px;

  transition: 0.2s ease;
}

.story-options button span {
  color: #a7854f;
  font-size: 10px;
}

.story-options button:hover {
  border-color: #a7854f;
  background: rgba(167,133,79,0.1);
  transform: translateX(3px);
}

.notebook-footer {
  position: absolute;
  right: 42px;
  bottom: 25px;
  left: 42px;
}


/* =========================================================
   STORY RESULT
========================================================= */

.story-result-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px 5vw;

  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.hidden {
  display: none !important;
}

.result-layout {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  gap: 70px;
  align-items: center;
}

.result-layout h2 {
  font-size: clamp(55px, 7vw, 95px);
}

.result-layout p:not(.eyebrow) {
  max-width: 600px;
  color: var(--muted);
}

.result-panel {
  padding: 35px;

  background: var(--charcoal-2);
  border: 1px solid var(--border-gold);
}

.panel-label {
  margin-bottom: 20px;

  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
  letter-spacing: 2px;
}

.result-panel h3 {
  font-size: 45px;
}

.result-panel p {
  margin: 20px 0 30px;
}


/* =========================================================
   PROBLEMS
========================================================= */

.problems {
  border-top: 1px solid var(--border);
}

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

  background: var(--border);
}

.problem-card {
  position: relative;

  min-height: 180px;
  padding: 28px;

  display: flex;
  flex-direction: column;
  justify-content: space-between;

  border: 0;

  background: var(--charcoal-2);
  color: var(--cream);

  text-align: left;

  transition: 0.25s ease;
}

.problem-card:hover {
  background: #202428;
  transform: translateY(-3px);
}

.problem-card > span {
  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
}

.problem-card strong {
  max-width: 300px;

  font-family: "Barlow Condensed", sans-serif;
  font-size: 25px;
  font-weight: 500;
  line-height: 1.05;
}

.problem-card small {
  color: var(--muted-dark);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1px;
}


/* =========================================================
   SIMULATOR
========================================================= */

.simulator-section {
  border-top: 1px solid var(--border);
}

.simulator {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;

  border: 1px solid var(--border);

  background: var(--charcoal-2);
}

.simulator-inputs {
  padding: 40px;

  border-right: 1px solid var(--border);
}

.input-heading {
  margin-bottom: 45px;

  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 14px;
  letter-spacing: 1.5px;
}

.input-heading span {
  margin-right: 15px;
}

.simulator-inputs label {
  display: block;
  margin-bottom: 32px;

  color: var(--muted);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
  letter-spacing: 1px;
}

.range-row {
  display: grid;
  grid-template-columns: 1fr 85px;
  align-items: center;
  gap: 15px;

  margin-top: 10px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--gold);
}

output {
  color: var(--cream);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 16px;

  text-align: right;
}

.simulator-output {
  padding: 45px;
}

.simulator-status {
  display: flex;
  align-items: center;
  gap: 10px;

  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1.5px;
}

.simulator-status span {
  width: 7px;
  height: 7px;

  border-radius: 50%;
  background: var(--blue-light);

  box-shadow: 0 0 10px var(--blue-light);
}

.impact-number {
  margin: 55px 0;
}

.impact-number small {
  display: block;

  margin-bottom: 5px;

  color: var(--muted);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
  letter-spacing: 1.5px;
}

.impact-number strong {
  color: var(--cream);

  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(80px, 10vw, 145px);
  font-weight: 500;
  line-height: 0.8;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;

  margin-bottom: 45px;

  background: var(--border);
}

.impact-grid div {
  padding: 20px;

  background: var(--charcoal);
}

.impact-grid span {
  display: block;

  margin-bottom: 8px;

  color: var(--muted-dark);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 10px;
  letter-spacing: 1px;
}

.impact-grid strong {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 23px;
  font-weight: 500;
}

.opportunity {
  padding-left: 20px;
  border-left: 2px solid var(--gold);
}

.opportunity > span {
  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1.5px;
}

.opportunity h3 {
  margin-top: 8px;
  font-size: 32px;
}

.opportunity p {
  max-width: 650px;
  color: var(--muted);
}

.disclaimer {
  margin: 20px 0 0;

  color: var(--muted-dark);
  font-size: 11px;
}


/* =========================================================
   FRAMEWORK
========================================================= */

.framework {
  border-top: 1px solid var(--border);
}

.framework-system {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;

  min-height: 450px;

  border: 1px solid var(--border);
}

.framework-stages {
  display: flex;
  flex-direction: column;

  border-right: 1px solid var(--border);
}

.framework-stage {
  flex: 1;

  display: flex;
  align-items: center;
  gap: 25px;

  padding: 20px 30px;

  border: 0;
  border-bottom: 1px solid var(--border);

  background: var(--charcoal-2);
  color: var(--muted);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 25px;
  text-align: left;

  transition: 0.2s ease;
}

.framework-stage:last-child {
  border-bottom: 0;
}

.framework-stage span {
  color: var(--gold-light);
  font-size: 11px;
}

.framework-stage:hover,
.framework-stage.active {
  background: #202428;
  color: var(--cream);
  padding-left: 40px;
}

.framework-panel {
  position: relative;
  padding: 60px;
  overflow: hidden;
}

.framework-code {
  color: var(--blue-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1.5px;
}

.framework-panel h3 {
  margin-top: 70px;
  font-size: clamp(65px, 9vw, 130px);
}

.framework-panel p {
  max-width: 600px;
  margin: 25px 0;

  color: var(--muted);
}

.framework-line {
  position: relative;

  width: 100%;
  height: 1px;

  margin-top: 45px;

  background: var(--border);
}

.framework-line span {
  position: absolute;
  left: 0;
  top: -2px;

  width: 35%;
  height: 5px;

  background: var(--gold);
}

.framework-note {
  margin-top: 25px;

  color: var(--muted-dark);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1.5px;
}


/* =========================================================
   CMG SYSTEM
========================================================= */

.system-section {
  border-top: 1px solid var(--border);
}

.system-grid {
  display: grid;
  grid-template-columns: 1fr 100px 1fr;
  align-items: stretch;
}

.system-card {
  min-height: 400px;
  padding: 38px;

  border: 1px solid var(--border);

  background: var(--charcoal-2);
}

.system-card-top {
  display: flex;
  justify-content: space-between;

  color: var(--muted-dark);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1px;
}

.system-card h3 {
  margin: 70px 0 20px;
  font-size: 58px;
}

.system-card p {
  max-width: 470px;
  color: var(--muted);
}

.system-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 25px;

  margin-top: 35px;
}

.system-links a {
  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 13px;
  letter-spacing: 1px;
}

.system-connector {
  display: flex;
  align-items: center;
  justify-content: center;

  background: var(--charcoal);
}

.system-connector span {
  width: 70px;
  height: 70px;

  display: flex;
  align-items: center;
  justify-content: center;

  border: 1px solid var(--gold);

  border-radius: 50%;

  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 15px;
  letter-spacing: 1px;
}

.system-outcome {
  margin-top: 30px;
  padding: 20px;

  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);

  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;

  color: var(--muted);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 13px;
  letter-spacing: 1.5px;
}

.system-outcome span {
  color: var(--gold-light);
}

.system-outcome i {
  color: var(--gold);
  font-style: normal;
}


/* =========================================================
   WEEKLY
========================================================= */

.weekly {
  border-top: 1px solid var(--border);
}

.weekly-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1px;

  background: var(--border);
}

.weekly-feature,
.weekly-card {
  padding: 38px;

  background: var(--charcoal-2);
}

.weekly-feature {
  grid-row: span 2;
  min-height: 450px;
}

.content-type {
  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1.5px;
}

.weekly-feature h3 {
  max-width: 700px;
  margin: 60px 0 25px;

  font-size: clamp(45px, 5vw, 75px);
}

.weekly-card h3 {
  margin: 25px 0 15px;
  font-size: 38px;
}

.weekly-feature p,
.weekly-card p {
  color: var(--muted);
}

.weekly a {
  display: inline-block;
  margin-top: 20px;

  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
  letter-spacing: 1px;
}

.newsletter-form {
  display: flex;
  margin-top: 30px;
}

.newsletter-form input {
  flex: 1;

  min-width: 0;
  padding: 15px;

  border: 1px solid var(--border);
  border-right: 0;

  background: var(--charcoal);
  color: var(--cream);

  outline: none;
}

.newsletter-form button {
  padding: 0 18px;

  border: 1px solid var(--gold);
  background: var(--gold);

  color: var(--charcoal);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
  letter-spacing: 1px;
}

.audio-placeholder {
  display: flex;
  align-items: center;
  gap: 18px;

  margin-top: 30px;
}

.audio-button {
  width: 58px;
  height: 58px;

  border: 1px solid var(--gold);
  border-radius: 50%;

  background: transparent;
  color: var(--gold-light);
}

.audio-placeholder strong,
.audio-placeholder small {
  display: block;
}

.audio-placeholder strong {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 20px;
}

.audio-placeholder small {
  color: var(--muted-dark);
  font-size: 10px;
}

.poll-options {
  display: grid;
  gap: 7px;

  margin-top: 25px;
}

.poll-options button {
  padding: 12px;

  border: 1px solid var(--border);
  background: transparent;

  color: var(--muted);

  text-align: left;

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
  letter-spacing: 0.7px;

  transition: 0.2s ease;
}

.poll-options button:hover {
  border-color: var(--gold);
  color: var(--cream);
}

.poll-result {
  margin-top: 20px;

  color: var(--gold-light);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 11px;
  letter-spacing: 1px;
}


/* =========================================================
   CONVERSATION
========================================================= */

.conversation {
  position: relative;

  padding: 160px 7vw;

  overflow: hidden;

  border-top: 1px solid var(--border);
}

.conversation-content {
  position: relative;
  z-index: 2;

  max-width: 1000px;
  margin: 0 auto;

  text-align: center;
}

.conversation-content h2 {
  margin: auto;
  font-size: clamp(60px, 9vw, 125px);
}

.conversation-content > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 20px;
}

.conversation-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
}


/* =========================================================
   FOOTER
========================================================= */

.site-footer {
  position: relative;

  padding: 60px 5vw 25px;

  border-top: 1px solid var(--border);

  background: #0c0e10;
}

.footer-brand {
  width: 190px;
}

.footer-brand p {
  color: var(--muted-dark);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 10px;
  letter-spacing: 1.5px;
}

.footer-links {
  display: flex;
  gap: 25px;

  margin: 45px 0;

  color: var(--muted);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 12px;
  letter-spacing: 1px;
}

.footer-links a:hover {
  color: var(--cream);
}

.secure-access {
  display: inline-block;

  margin-bottom: 40px;

  color: var(--muted-dark);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 10px;
  letter-spacing: 1.5px;
}

.secure-access:hover {
  color: var(--gold-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;

  padding-top: 20px;

  border-top: 1px solid var(--border);

  color: var(--muted-dark);

  font-family: "Barlow Condensed", sans-serif;
  font-size: 10px;
  letter-spacing: 1px;
}


/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 1050px) {

  .main-nav {
    gap: 15px;
  }

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

  .hero-copy {
    max-width: 850px;
  }

  .notebook-scene {
    min-height: 600px;
  }

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

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

  .simulator-inputs {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .framework-system {
    grid-template-columns: 1fr;
  }

  .framework-stages {
    border-right: 0;
    border-bottom: 1px solid var(--border);

    display: grid;
    grid-template-columns: repeat(5, 1fr);
  }

  .framework-stage {
    display: block;
    padding: 20px;
    text-align: center;
  }

  .framework-stage span {
    display: block;
    margin-bottom: 10px;
  }

  .framework-stage:hover,
  .framework-stage.active {
    padding-left: 20px;
  }

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

  .system-connector {
    min-height: 90px;
  }

  .system-outcome {
    flex-wrap: wrap;
  }
}


@media (max-width: 760px) {

  .site-header {
    min-height: 72px;
  }

  .brand {
    width: 150px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;

    display: none;
    flex-direction: column;
    align-items: stretch;

    padding: 15px;

    background: #151719;
    border-bottom: 1px solid var(--border);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav > a,
  .nav-drop-button {
    padding: 15px;
  }

  .nav-dropdown {
    width: 100%;
  }

  .dropdown-menu {
    position: static;

    transform: none !important;

    display: none;

    width: 100%;

    opacity: 1;

    border: 0;

    background: #101214;
  }

  .nav-dropdown.open .dropdown-menu {
    display: block;
  }

  .hero {
    min-height: auto;
    padding: 80px 6vw;
  }

  .hero-copy h1 {
    font-size: 62px;
  }

  .notebook-scene {
    min-height: 520px;
  }

  .notebook {
    width: 100%;
    min-height: 500px;
  }

  .notebook-page {
    min-height: 476px;
    padding: 28px 25px;
  }

  .story-options {
    grid-template-columns: 1fr;
  }

  .notebook-footer {
    right: 25px;
    left: 25px;
  }

  .module {
    padding: 90px 6vw;
  }

  .section-header {
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 45px;
  }

  h2 {
    font-size: 55px;
  }

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

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

  .simulator-inputs,
  .simulator-output {
    padding: 28px;
  }

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

  .framework-stages {
    display: flex;
  }

  .framework-stage {
    text-align: left;
  }

  .framework-stage span {
    display: inline;
    margin: 0 15px 0 0;
  }

  .framework-panel {
    padding: 35px;
  }

  .framework-panel h3 {
    margin-top: 45px;
  }

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

  .weekly-feature {
    grid-row: auto;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input {
    border-right: 1px solid var(--border);
  }

  .newsletter-form button {
    min-height: 48px;
  }

  .conversation {
    padding: 110px 6vw;
  }

  .conversation-actions {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
  }
}