:root {
  --ink: #1a1a1a;
  --charcoal: #333;
  --body: #555;
  --muted: #888;
  --border: #e0e0e0;
  --light: #f2f2f2;
  --cream: #fafaf8;
  --white: #ffffff;
  --signal: #ff3d00;
  --signal-soft: rgba(255,61,0,0.08);
  --signal-mid: rgba(255,61,0,0.15);
  --blue: #0055ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Instrument Sans', sans-serif;
  color: var(--charcoal);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--signal); color: white; }

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}


/* ========================================
   NAV
   ======================================== */

header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 1.25rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(250,250,248,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.08em;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  margin-left: 2rem;
  transition: color 0.3s;
}

nav a:hover { color: var(--ink); }


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

.hero {
  min-height: 100vh;
  background: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 3rem 5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero-accent {
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
}

.ha1 { top: -20%; right: -10%; background: var(--signal); opacity: 0.06; }
.ha2 { bottom: -20%; left: 10%; background: var(--blue); opacity: 0.04; }

.hero-inner {
  max-width: 1300px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  text-align: center;
}

.hero-pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 2rem;
  opacity: 0;
  animation: up 0.6s ease forwards 0.2s;
}

.hero h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3.5rem, 9vw, 8rem);
  line-height: 0.93;
  letter-spacing: 0.01em;
  color: var(--ink);
  max-width: 1000px;
  margin: 0 auto 2.5rem;
  opacity: 0;
  animation: up 0.8s ease forwards 0.4s;
}

.hero h1 .sig { color: var(--signal); }

.hero-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  animation: up 0.8s ease forwards 0.7s;
}

.hero-desc {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--body);
  line-height: 1.7;
  max-width: 600px;
  text-align: center;
}

.hero-desc a {
  color: var(--signal);
  text-decoration: none;
  font-weight: 600;
}

.hero-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hb {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
}


/* ========================================
   SHARED SECTION STYLES
   ======================================== */

section {
  padding: 7rem 3rem;
  text-align: left;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.sec-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1rem;
}

.sec-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: 0.015em;
  color: var(--ink);
  line-height: 1.05;
}

.sec-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: end;
  margin-bottom: 4rem;
}

.sec-desc {
  font-size: 1rem;
  color: var(--body);
  line-height: 1.75;
  align-self: end;
}


/* ========================================
   9% SECTION
   ======================================== */

.nine-section {
  padding: 8rem 3rem;
  background: var(--cream);
  text-align: center;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.nine-big {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(8rem, 22vw, 18rem);
  line-height: 0.85;
  color: var(--signal);
  letter-spacing: -0.02em;
  opacity: 0.08;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  user-select: none;
}

.nine-content {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.nine-content h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  letter-spacing: 0.02em;
  color: var(--ink);
  line-height: 1.05;
  margin-bottom: 1.5rem;
}

.nine-content p {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--body);
  line-height: 1.8;
  max-width: 580px;
  margin: 0 auto;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  margin-top: 4rem;
  border: 1px solid var(--border);
  text-align: center;
}

.sr-item {
  background: var(--white);
  padding: 2rem 1.5rem;
  transition: background 0.3s;
}

.sr-item:hover { background: var(--signal-soft); }

.sr-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem;
  color: var(--signal);
  line-height: 1;
}

.sr-label {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.45;
  margin-top: 0.5rem;
}

.sr-source {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.5rem;
  color: var(--border);
  margin-top: 0.4rem;
  letter-spacing: 0.03em;
}


/* ========================================
   PARTNER
   ======================================== */

.partner-section {
  padding: 4rem 3rem;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.partner-card {
  background: var(--cream);
  border: 1px solid var(--border);
  padding: 3rem 3.5rem;
  position: relative;
  overflow: hidden;
}

.partner-card::before {
  content: '65K+';
  font-family: 'Bebas Neue', sans-serif;
  font-size: 10rem;
  color: rgba(0,0,0,0.02);
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  line-height: 1;
  pointer-events: none;
}

.partner-top { margin-bottom: 1.5rem; }

.partner-main {
  display: grid;
  grid-template-columns: auto 1px 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
}

.partner-logo-link {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.04em;
  line-height: 1;
  transition: color 0.3s;
}

.partner-logo-link:hover { color: var(--signal); }

.partner-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal);
  margin-top: 0.5rem;
}

.partner-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
}

.partner-explain p {
  font-size: 1rem;
  color: var(--body);
  line-height: 1.7;
  max-width: 450px;
}


/* ========================================
   WHAT WE DO
   ======================================== */

section.work {
  padding: 7rem 3rem;
  background: var(--white);
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.wc {
  background: var(--cream);
  padding: 2.5rem 2rem;
  transition: all 0.3s;
  position: relative;
}

.wc:hover { background: var(--signal-soft); }

.wc-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 4rem;
  color: var(--border);
  line-height: 1;
  margin-bottom: 1rem;
  transition: color 0.3s;
}

.wc:hover .wc-num { color: var(--signal-mid); }

.wc-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 0.6rem;
}

.wc h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.65rem;
}

.wc p {
  font-size: 0.85rem;
  color: var(--body);
  line-height: 1.65;
}

.wc p a {
  color: var(--signal);
  text-decoration: none;
  font-weight: 600;
}


/* ========================================
   MANIFESTO
   ======================================== */

.manifesto {
  padding: 7rem 3rem;
  background: var(--signal);
  text-align: center;
}

.manifesto h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  color: white;
  line-height: 1.05;
  letter-spacing: 0.02em;
  max-width: 900px;
  margin: 0 auto 2rem;
}

.manifesto p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.75;
}


/* ========================================
   BOOK
   ======================================== */

.book-section {
  padding: 7rem 3rem;
  background: var(--cream);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.book-bg-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(6rem, 14vw, 12rem);
  color: rgba(0,0,0,0.02);
  position: absolute;
  bottom: -2rem;
  right: -1rem;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.book-layout {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  position: relative;
}

.book-left h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 4.5vw, 3.8rem);
  color: var(--ink);
  line-height: 1.02;
  letter-spacing: 0.015em;
  margin-bottom: 1.5rem;
}

.book-left p {
  font-size: 1rem;
  color: var(--body);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.book-cc {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal);
  padding: 0.5rem 1.2rem;
  border: 1px solid rgba(255,61,0,0.3);
  border-radius: 100px;
  margin-top: 0.5rem;
}

.prop-stack {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 1rem;
}

.prop {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.3s;
}

.prop:hover { padding-left: 0.5rem; }

.prop-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem;
  color: var(--signal);
}

.prop h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.prop p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}


/* ========================================
   PRINCIPLES
   ======================================== */

.princ-section {
  padding: 7rem 3rem;
  background: var(--white);
}

.princ-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
  margin-top: 3.5rem;
}

.pc {
  position: relative;
  padding-top: 1.5rem;
}

.pc::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 32px;
  height: 4px;
  border-radius: 2px;
}

.pc:nth-child(1)::before { background: var(--signal); }
.pc:nth-child(2)::before { background: var(--blue); }
.pc:nth-child(3)::before { background: #10b981; }
.pc:nth-child(4)::before { background: #f59e0b; }

.pc h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.pc p {
  font-size: 0.88rem;
  color: var(--body);
  line-height: 1.65;
}


/* ========================================
   TEAM
   ======================================== */

.team-section {
  padding: 7rem 3rem;
  background: var(--cream);
}

.team-intro {
  max-width: 680px;
  margin-bottom: 3rem;
}

.team-intro p {
  font-size: 1.05rem;
  color: var(--body);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.team-ethos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.ethos-card {
  padding: 1.5rem 1.75rem;
  background: var(--white);
  border: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: border-color 0.3s;
}

.ethos-card:hover { border-color: var(--signal); }

.ethos-marker {
  width: 8px;
  height: 8px;
  background: var(--signal);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.4rem;
}

.ethos-card p {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.5;
}

.team-sub-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 3.5rem;
  margin-bottom: 1.5rem;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.tm {
  background: var(--white);
  padding: 2.5rem;
  transition: background 0.3s;
}

.tm:hover { background: var(--signal-soft); }

.tm-init {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.5rem;
  color: var(--signal);
  letter-spacing: 0.03em;
  line-height: 1;
  margin-bottom: 1.25rem;
}

.tm h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.tm-role {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1rem;
}

.tm p {
  font-size: 0.85rem;
  color: var(--body);
  line-height: 1.65;
}


/* ========================================
   ASSOCIATES
   ======================================== */

.assoc-block {
  margin-top: 3rem;
}

.assoc-inner {
  background: var(--white);
  border: 2px solid var(--border);
  padding: 2.5rem 3rem;
  display: grid;
  grid-template-columns: auto 1px 1fr;
  gap: 2.5rem;
  align-items: center;
}

.assoc-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  color: var(--ink);
  letter-spacing: 0.03em;
  margin-top: 0.5rem;
}

.assoc-divider {
  width: 1px;
  height: 50px;
  background: var(--border);
}

.assoc-right p {
  font-size: 0.92rem;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.assoc-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--signal);
  text-decoration: none;
  transition: opacity 0.3s;
}

.assoc-link:hover { opacity: 0.7; }

.assoc-inner .team-sub-label {
  color: var(--muted);
  margin: 0;
}


/* ========================================
   COMMITMENTS (Three Principles)
   ======================================== */

.commitments-section {
  padding: 7rem 3rem;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.commitments-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 3rem;
  border: 1px solid var(--border);
}

.commitment {
  padding: 3rem 2.5rem;
  border-right: 1px solid var(--border);
  position: relative;
  transition: background 0.3s;
}

.commitment:last-child { border-right: none; }

.commitment:hover { background: var(--signal-soft); }

.commitment::before {
  content: '';
  display: block;
  width: 32px;
  height: 4px;
  border-radius: 2px;
  margin-bottom: 1.5rem;
}

.commitment:nth-child(1)::before { background: var(--signal); }
.commitment:nth-child(2)::before { background: var(--blue); }
.commitment:nth-child(3)::before { background: #10b981; }

.commitment h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  color: var(--ink);
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}

.commitment p {
  font-size: 0.92rem;
  color: var(--body);
  line-height: 1.7;
}


/* ========================================
   GET INVOLVED
   ======================================== */

.involve-section {
  padding: 7rem 3rem;
  background: var(--white);
}

.inv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

.inv-grid-3 {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 2.5rem;
}

.inv {
  padding: 2.5rem;
  border: 2px solid var(--border);
  transition: all 0.3s;
}

.inv:hover {
  border-color: var(--signal);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(255,61,0,0.06);
}

.inv h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  color: var(--ink);
  letter-spacing: 0.03em;
  margin-bottom: 0.5rem;
}

.inv p {
  font-size: 0.9rem;
  color: var(--body);
  line-height: 1.65;
}


/* ========================================
   REGISTER
   ======================================== */

.register {
  padding: 7rem 3rem;
  background: var(--ink);
  text-align: center;
}

.reg-inner {
  max-width: 600px;
  margin: 0 auto;
}

.reg-inner h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: white;
  letter-spacing: 0.02em;
  margin-bottom: 0.75rem;
}

.reg-inner > p {
  font-size: 1rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.reg-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.reg-form input {
  padding: 1rem 1.25rem;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.9rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  color: white;
  outline: none;
  transition: border-color 0.3s;
}

.reg-form input::placeholder { color: rgba(255,255,255,0.35); }
.reg-form input:focus { border-color: var(--signal); }
.reg-form input.full { grid-column: 1 / -1; }

.reg-btn {
  grid-column: 1 / -1;
  padding: 1.1rem;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  background: var(--signal);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
}

.reg-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,61,0,0.3);
}


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

footer {
  background: var(--cream);
  border-top: 1px solid var(--border);
  padding: 2rem 3rem;
}

.foot-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.foot-l {
  font-size: 0.7rem;
  color: var(--muted);
  line-height: 1.7;
}

.foot-r a {
  font-size: 0.78rem;
  color: var(--signal);
  text-decoration: none;
  margin-left: 1.5rem;
}


/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.vis {
  opacity: 1;
  transform: translateY(0);
}


/* ========================================
   HAMBURGER MENU
   ======================================== */

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 300;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--white);
  z-index: 250;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav a {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.mobile-nav a:hover {
  color: var(--signal);
}


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

@media (max-width: 900px) {
  .sec-head { grid-template-columns: 1fr; gap: 1.5rem; }
  .work-grid { grid-template-columns: repeat(2, 1fr); }
  .book-layout { grid-template-columns: 1fr; }
  .princ-row { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: 1fr; }
  .team-ethos { grid-template-columns: 1fr; }
  .inv-grid, .inv-grid-3 { grid-template-columns: 1fr; }
  .commitments-grid { grid-template-columns: 1fr; }
  .commitment { border-right: none; border-bottom: 1px solid var(--border); }
  .commitment:last-child { border-bottom: none; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .assoc-inner,
  .partner-main { grid-template-columns: 1fr; gap: 1.5rem; }
  .assoc-divider,
  .partner-divider { width: 60px; height: 1px; }
}

@media (max-width: 768px) {
  /* Hamburger visible */
  .hamburger { display: block; }
  .mobile-nav { display: flex; }
  nav { display: none; }

  /* Header */
  header { padding: 1rem 1.5rem; }

  /* Hero */
  .hero {
    padding: 6.5rem 1.25rem 3rem;
    min-height: auto;
  }

  .hero h1 {
    font-size: clamp(2.4rem, 8vw, 3.5rem);
    line-height: 0.95;
    margin: 0 auto 1.75rem;
  }

  .hero-desc {
    font-size: 1rem;
    line-height: 1.65;
    max-width: 100%;
  }

  .hero-pre {
    font-size: 0.6rem;
    margin-bottom: 1.5rem;
  }

  .hero-bottom { gap: 1.5rem; }

  .hero-badges { gap: 0.4rem; }

  .hb {
    font-size: 0.52rem;
    padding: 0.4rem 0.75rem;
  }

  /* Sections */
  section,
  .nine-section,
  .manifesto,
  .register { padding: 3.5rem 1.25rem; }

  .partner-section { padding: 2.5rem 1.25rem; }
  .partner-card { padding: 2rem 1.5rem; }

  /* 9% section */
  .nine-big { font-size: clamp(6rem, 18vw, 10rem); }

  .nine-content h2 {
    font-size: clamp(1.6rem, 5vw, 2.2rem);
  }

  .nine-content p {
    font-size: 0.95rem;
    line-height: 1.7;
  }

  /* Stats */
  .stat-row { grid-template-columns: repeat(2, 1fr); }

  .sr-num { font-size: 2.2rem; }
  .sr-label { font-size: 0.7rem; }

  /* Work grid */
  .work-grid { grid-template-columns: 1fr; }

  .wc { padding: 2rem 1.5rem; }
  .wc-num { font-size: 3rem; }

  .sec-head {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 2.5rem;
  }

  .sec-title {
    font-size: clamp(1.6rem, 5vw, 2.2rem);
  }

  /* Manifesto */
  .manifesto h2 {
    font-size: clamp(1.8rem, 5.5vw, 2.5rem);
  }

  .manifesto p {
    font-size: 0.95rem;
  }

  /* Book / Focus */
  .book-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .book-left h2 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
  }

  .book-section { padding: 3.5rem 1.25rem; }

  .prop { grid-template-columns: 32px 1fr; gap: 0.75rem; }

  /* Principles */
  .princ-row {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* Principles as 3-col on this page */
  .inv-grid-3,
  .involve-section .inv-grid {
    grid-template-columns: 1fr;
  }

  .commitments-grid { grid-template-columns: 1fr; }
  .commitment { border-right: none; border-bottom: 1px solid var(--border); padding: 2rem 1.5rem; }
  .commitment:last-child { border-bottom: none; }

  /* Team */
  .team-grid { grid-template-columns: 1fr; }

  .tm { padding: 2rem 1.5rem; }

  .team-ethos { grid-template-columns: 1fr; }

  .assoc-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2rem 1.5rem;
  }

  .assoc-divider { width: 50px; height: 1px; }

  /* Partner */
  .partner-main {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .partner-divider { width: 50px; height: 1px; }

  .partner-logo-link { font-size: 1.8rem; }

  /* Register */
  .reg-form { grid-template-columns: 1fr; }

  .reg-inner h2 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
  }

  /* Footer */
  .foot-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .foot-r { margin-left: 0; }
  .foot-r a { margin-left: 0; margin-right: 1.5rem; }
}