/* =========================================================
   PITCHD — Design Tokens
   Fixed cinematic dark identity, derived from the brand mark
   (black + emerald apostrophe), the leadership portrait
   treatment (near-black / mint duotone), and the confirmed
   mood board palette (#000000 / #19D3A3 family).
   ========================================================= */

:root {
  /* ---- Fonts ---- */
  --font-display: 'Clash Display', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'General Sans', 'Helvetica Neue', Arial, sans-serif;

  /* ---- Type scale (fluid) ---- */
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.78rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.5vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.1vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.3rem + 2.4vw, 3.375rem);
  --text-3xl: clamp(2.5rem, 1.2rem + 4vw, 5.25rem);
  --text-hero: clamp(2.5rem, 1.4rem + 4.6vw, 5.5rem);

  /* ---- 4px spacing system ---- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* ---- Surfaces (fixed dark — deliberate brand identity) ---- */
  --color-bg: #0a0a0c;
  --color-surface: #121317;
  --color-surface-2: #17181d;
  --color-surface-offset: #1c1d23;
  --color-divider: rgba(245, 244, 240, 0.09);
  --color-border: rgba(245, 244, 240, 0.14);

  /* ---- Text ---- */
  --color-text: #f5f4f0;
  --color-text-muted: #9d9ea3;
  --color-text-faint: #616269;
  --color-text-inverse: #0a0a0c;

  /* ---- Accent (emerald — primary accent for CTAs, numbers, ticks, active states) ---- */
  --color-accent: #22d399;
  --color-accent-light: #79f7bf;
  --color-accent-dark: #12a877;
  --color-accent-contrast: #08130f;

  /* ---- Radius ---- */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* ---- Motion ---- */
  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-premium: cubic-bezier(0.16, 1, 0.3, 1);

  /* ---- Shadows ---- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);

  /* ---- Content widths ---- */
  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1280px;
  --content-full: 100%;
}

/* =========================================================
   Global type rules
   ========================================================= */

h1,
h2,
h3,
.font-display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}

body,
p,
a,
button,
input,
textarea,
li {
  font-family: var(--font-body);
}

body {
  background: var(--color-bg);
  overflow-x: hidden;
}

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-10);
  }
}
@media (min-width: 1200px) {
  .container {
    padding-inline: var(--space-12);
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  flex-shrink: 0;
}

.section-index {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}
.section-index::before {
  content: '';
  display: inline-block;
  width: 30px;
  height: 11px;
  background-image: url('./assets/stroke-line_green.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: left center;
  flex-shrink: 0;
}

section {
  position: relative;
  padding-block: clamp(var(--space-20), 10vw, var(--space-32));
}

#problem .container,
#ladder .container,
#services .container,
#contact .container {
  position: relative;
  z-index: 1;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: clamp(var(--space-10), 6vw, var(--space-16));
}

.section-head h2 {
  font-size: var(--text-3xl);
  max-width: 18ch;
}

.lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 46ch;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.55;
}

.prose p {
  max-width: 62ch;
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.7;
}
.prose p + p {
  margin-top: var(--space-5);
}
.prose strong {
  color: var(--color-text);
  font-weight: 600;
}

.accent {
  color: var(--color-accent);
}

.hr {
  border: none;
  border-top: 1px solid var(--color-divider);
}

/* Grain overlay used sparingly on photographic/cinematic moments */
.grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* =========================================================
   Header
   ========================================================= */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  background: rgba(10, 10, 12, 0);
  border-bottom: 1px solid transparent;
  transition:
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    transform 0.4s var(--ease-premium);
}
@media (min-width: 768px) {
  .site-header {
    padding: var(--space-6) var(--space-10);
  }
}
@media (min-width: 1200px) {
  .site-header {
    padding: var(--space-6) var(--space-12);
  }
}
.site-header.is-scrolled {
  background: rgba(10, 10, 12, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
}
.site-header.is-hidden {
  transform: translateY(-100%);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.brand img {
  height: 20px;
  width: auto;
}
@media (min-width: 768px) {
  .brand img {
    height: 22px;
  }
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-8);
}
@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
  }
}
.nav-desktop a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  padding-block: var(--space-1);
}
.nav-desktop a:hover {
  color: var(--color-text);
}
.nav-desktop a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0%;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-interactive);
}
.nav-desktop a:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-6);
  transition: var(--transition-interactive);
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}
.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(34, 211, 153, 0.3);
}
.btn-ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.btn-nav {
  display: none;
}
@media (min-width: 1024px) {
  .btn-nav {
    display: inline-flex;
  }
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
}
@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--color-text);
  transition: var(--transition-interactive);
}
.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-8);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition-interactive);
}
.nav-mobile.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-mobile a {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  text-decoration: none;
}
.nav-mobile .btn {
  align-self: flex-start;
  margin-top: var(--space-6);
}

/* =========================================================
   Hero
   ========================================================= */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(7rem, 14vw, 10rem);
  padding-bottom: var(--space-16);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -12%;
  width: 60vw;
  height: 60vw;
  max-width: 780px;
  max-height: 780px;
  background: radial-gradient(circle, rgba(34, 211, 153, 0.14), transparent 70%);
  pointer-events: none;
}

.hero-bg-image {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-bg-image img {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 130%;
  max-height: 900px;
  width: auto;
  max-width: 68%;
  object-fit: cover;
  object-position: right center;
  opacity: 0.85;
  animation: ladderGlow 7s ease-in-out infinite;
}
.hero-bg-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--color-bg) 0%, transparent 32%, transparent 70%, var(--color-bg) 100%);
}
@media (max-width: 900px) {
  .hero-bg-image img {
    max-width: 92%;
    opacity: 0.5;
  }
}
@keyframes ladderGlow {
  0%, 100% { opacity: 0.78; }
  50% { opacity: 0.92; }
}

/* =========================================================
   Section background photos (full-bleed, sit behind text)
   ========================================================= */

.section-bg-photo {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.section-bg-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}
.section-bg-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, var(--color-bg) 0%, rgba(10, 10, 12, 0.82) 26%, rgba(10, 10, 12, 0.35) 58%, rgba(10, 10, 12, 0.7) 100%);
}
.bg-ladder img {
  object-position: 78% 38%;
}
.bg-services img {
  object-position: 65% 55%;
}
@media (max-width: 900px) {
  .section-bg-photo img {
    opacity: 0.22;
  }
  .section-bg-photo::after {
    background: linear-gradient(180deg, var(--color-bg) 0%, rgba(10, 10, 12, 0.55) 30%, rgba(10, 10, 12, 0.75) 100%);
  }
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-mark {
  height: 30px;
  width: auto;
  margin-bottom: var(--space-8);
  opacity: 0.95;
}
@media (min-width: 768px) {
  .hero-mark {
    height: 36px;
  }
}

.hero h1 {
  font-size: var(--text-hero);
  max-width: 23ch;
  color: var(--color-text);
}

.accent-underline {
  position: relative;
  white-space: nowrap;
}
.accent-underline::after {
  content: '';
  position: absolute;
  left: -0.04em;
  right: -0.04em;
  bottom: -0.02em;
  height: 0.34em;
  background-image: url('./assets/stroke-line_green.png');
  background-size: 100% 100%;
  background-repeat: no-repeat;
  z-index: -1;
  opacity: 0.95;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-8);
  margin-top: clamp(var(--space-10), 6vw, var(--space-16));
}

.hero-lede {
  max-width: 34ch;
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.65;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}
.link-arrow:hover {
  color: var(--color-text);
}
.link-arrow svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-interactive);
}
.link-arrow:hover svg {
  transform: translateY(2px);
}

.hero-scroll-cue {
  position: absolute;
  left: var(--space-6);
  bottom: var(--space-8);
  display: none;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
@media (min-width: 768px) {
  .hero-scroll-cue {
    display: flex;
    left: var(--space-10);
  }
}
.hero-scroll-cue .line {
  width: 1px;
  height: 32px;
  background: var(--color-text-faint);
  position: relative;
  overflow: hidden;
}
.hero-scroll-cue .line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: var(--color-accent);
  animation: scrollcue 2.4s var(--ease-premium) infinite;
}
@keyframes scrollcue {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(250%);
  }
}

/* =========================================================
   Perspective
   ========================================================= */

.perspective-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}
@media (min-width: 900px) {
  .perspective-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: var(--space-16);
  }
}

.perspective-heading h2 {
  font-size: var(--text-2xl);
  max-width: 19ch;
}

.perspective-body {
  border-left: 1px solid var(--color-divider);
  padding-left: var(--space-8);
}

/* =========================================================
   Services
   ========================================================= */

.services-list {
  border-top: 1px solid var(--color-divider);
}

.service-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-6);
  align-items: start;
  padding-block: var(--space-10);
  border-bottom: 1px solid var(--color-divider);
  transition: var(--transition-interactive);
}
@media (min-width: 860px) {
  .service-row {
    grid-template-columns: 100px 1fr 1.1fr;
    gap: var(--space-10);
    align-items: baseline;
  }
}

.service-row:hover {
  background: linear-gradient(
    to right,
    rgba(34, 211, 153, 0.06),
    transparent 60%
  );
}

.service-num {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text-faint);
  font-weight: 500;
  position: relative;
}
.service-num::after {
  content: '';
  display: block;
  width: 26px;
  height: 8px;
  margin-top: var(--space-2);
  background-image: url('./assets/stroke-line_green.png');
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.85;
}

.service-powers {
  display: inline-flex;
  align-items: center;
  margin-top: var(--space-3);
  padding: 0.2em 0.7em;
  border: 1px solid rgba(34, 211, 153, 0.4);
  border-radius: var(--radius-full);
  color: var(--color-accent);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
}

.service-heading {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.service-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-text);
}

.service-desc {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  max-width: 52ch;
  line-height: 1.65;
}

/* =========================================================
   Clients — trusted-by wordmark wall
   ========================================================= */

.clients-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-divider);
  border: 1px solid var(--color-divider);
}
@media (min-width: 640px) {
  .clients-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.client-cell {
  position: relative;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-6);
  min-height: 108px;
  transition: background var(--transition-interactive);
}
.client-cell:hover {
  background: var(--color-surface);
}

.client-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--color-text-faint);
  text-align: center;
  transition: color var(--transition-interactive);
}
.client-cell:hover .client-name {
  color: var(--color-accent);
}

.client-logo,
.client-logo-green {
  max-width: 128px;
  max-height: 36px;
  width: auto;
  height: auto;
  object-fit: contain;
}
.client-logo {
  filter: brightness(0) invert(1);
  opacity: 0.4;
  transition: opacity var(--transition-interactive);
}
.client-cell:hover .client-logo {
  opacity: 0;
}

.client-logo-green {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-interactive);
}
.client-cell:hover .client-logo-green {
  opacity: 1;
}

/* =========================================================
   How We Work — ways-of-working cards
   ========================================================= */

#how-we-work .container {
  position: relative;
  z-index: 1;
}

.model-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--color-divider);
  border: 1px solid var(--color-divider);
}
@media (min-width: 760px) {
  .model-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.model-card {
  background: var(--color-bg);
  padding: var(--space-10) var(--space-8);
}

.model-card .model-index {
  font-family: var(--font-display);
  color: var(--color-accent);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-6);
  display: block;
}

.model-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.model-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

/* =========================================================
   Leadership
   ========================================================= */

.leadership-photo-banner {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: min(34vw, 380px);
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.leadership-photo-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
  opacity: 0.6;
}
.leadership-photo-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 10, 12, 0.1) 0%, var(--color-bg) 92%);
}
@media (max-width: 900px) {
  .leadership-photo-banner {
    height: min(60vw, 260px);
  }
  .leadership-photo-banner img {
    opacity: 0.4;
  }
}
#leadership .container {
  position: relative;
  z-index: 1;
}

.leadership-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}
@media (min-width: 760px) {
  .leadership-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
}

.leader-card {
  display: flex;
  flex-direction: column;
}

.leader-photo {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-2);
  margin-bottom: var(--space-6);
}
.leader-photo .leader-headshot {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 68%;
  height: 68%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.leader-photo .grain {
  opacity: 0.06;
}

.leader-placeholder-tag {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-4);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(10, 10, 12, 0.72);
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  backdrop-filter: blur(6px);
}

.leader-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
}

.leader-role {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: var(--space-1);
  margin-bottom: var(--space-4);
}

.leader-bio {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.65;
  max-width: 42ch;
}

/* =========================================================
   Contact / CTA footer
   ========================================================= */

.contact {
  padding-block: clamp(var(--space-20), 12vw, var(--space-32)) 0;
}

.contact-inner {
  text-align: left;
  max-width: var(--content-default);
}

.contact h2 {
  font-size: var(--text-3xl);
  max-width: 22ch;
  margin-bottom: var(--space-5);
}
.contact .lede {
  margin-bottom: var(--space-10);
}

.contact-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-8);
}

.contact-email {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-base);
  border-bottom: 1px solid var(--color-divider);
  padding-bottom: 2px;
}
.contact-email:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.site-footer {
  margin-top: clamp(var(--space-20), 10vw, var(--space-32));
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-10);
}

.footer-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
@media (min-width: 760px) {
  .footer-grid {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}
.footer-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
}
.footer-nav a:hover {
  color: var(--color-text);
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}
.footer-meta a {
  color: var(--color-text-faint);
  text-decoration: none;
}
.footer-meta a:hover {
  color: var(--color-accent);
}

/* =========================================================
   The Growth Ladder — vertical interactive centrepiece
   ========================================================= */

.ladder-section {
  position: relative;
}

.ladder-intro {
  max-width: 60ch;
}

.ladder-track {
  position: relative;
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-6);
  margin-top: clamp(var(--space-12), 6vw, var(--space-16));
  padding-left: clamp(28px, 4vw, 44px);
}

.ladder-line {
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--color-accent-dark),
    var(--color-accent) 45%,
    var(--color-accent-light)
  );
  box-shadow: 0 0 16px rgba(34, 211, 153, 0.55);
  border-radius: var(--radius-full);
}

.rung-item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-6);
  align-items: start;
  padding: var(--space-6) var(--space-6) var(--space-6) var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.7s var(--ease-premium),
    transform 0.7s var(--ease-premium),
    border-color var(--transition-interactive),
    background var(--transition-interactive),
    box-shadow var(--transition-interactive);
}
.rung-item.in-view {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .rung-item {
    opacity: 1;
    transform: none;
  }
}
.rung-item::before {
  content: '';
  position: absolute;
  left: calc(clamp(28px, 4vw, 44px) * -1 + 4px);
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  box-shadow: 0 0 10px rgba(34, 211, 153, 0.7);
}
@media (min-width: 640px) {
  .rung-item {
    grid-template-columns: 90px 1fr;
  }
}
.rung-item:hover,
.rung-item.is-active {
  border-color: rgba(34, 211, 153, 0.55);
  background: var(--color-surface-2);
  box-shadow: 0 12px 32px rgba(34, 211, 153, 0.12);
  transform: translateY(-2px);
}
.rung-item:nth-child(1) { transition-delay: 0ms; }
.rung-item:nth-child(2) { transition-delay: 90ms; }
.rung-item:nth-child(3) { transition-delay: 180ms; }
.rung-item:nth-child(4) { transition-delay: 270ms; }

.rung-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1;
}

.rung-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.rung-line {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.55;
  max-width: 52ch;
}

.rung-detail {
  color: var(--color-text-faint);
  font-size: var(--text-sm);
  line-height: 1.6;
  max-width: 52ch;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  transition:
    max-height var(--transition-interactive),
    opacity var(--transition-interactive),
    margin-top var(--transition-interactive);
}
.rung-item:hover .rung-detail,
.rung-item.is-active .rung-detail {
  max-height: 100px;
  opacity: 1;
  margin-top: var(--space-2);
}

.ladder-close-line {
  text-align: center;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  max-width: 46ch;
  margin: clamp(var(--space-12), 6vw, var(--space-16)) auto 0;
  line-height: 1.4;
}

/* =========================================================
   Scroll progress — climbs the left edge of the page
   ========================================================= */

.scroll-progress {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: rgba(245, 244, 240, 0.06);
  z-index: 90;
  pointer-events: none;
}
.scroll-progress-fill {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(180deg, var(--color-accent-light), var(--color-accent));
  box-shadow: 0 0 12px rgba(34, 211, 153, 0.6);
}

/* =========================================================
   Scroll reveal utility
   ========================================================= */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.8s var(--ease-premium),
    transform 0.8s var(--ease-premium);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}