/* ============================================================
   BLOCK BY BLOCK ALLIANCE — STYLESHEET
   Institutional: navy + white + gold — government/enterprise ready
   ============================================================ */

:root {
  --navy:        #0d1b2a;
  --navy-mid:    #1a2d42;
  --navy-light:  #243b55;
  --white:       #ffffff;
  --off-white:   #f7f8fa;
  --light-gray:  #eef0f4;
  --border:      #d8dde6;
  --gold:        #b8922a;
  --gold-light:  #d4a83a;
  --gold-dim:    rgba(184,146,42,0.12);
  --text-dark:   #1a1a2e;
  --text-body:   #3a4252;
  --text-muted:  #6b7280;
  --text-light:  #9aa3b0;
  --radius:      8px;
  --radius-lg:   14px;
  --shadow-sm:   0 1px 4px rgba(0,0,0,0.08);
  --shadow:      0 4px 20px rgba(0,0,0,0.10);
  --shadow-lg:   0 8px 40px rgba(0,0,0,0.14);
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--white);
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── CONTAINER ── */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4, h5 {
  font-family: 'Merriweather', Georgia, serif;
  color: var(--navy);
  line-height: 1.25;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 900; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-family: 'Inter', sans-serif; font-weight: 700; }
h4 { font-size: 1rem; font-family: 'Inter', sans-serif; font-weight: 600; }
h5 {
  font-size: 0.75rem;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold);
}

p { color: var(--text-body); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }
strong { font-weight: 600; color: var(--text-dark); }
em { font-style: italic; }

a { color: var(--gold); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--gold-light); }

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  font-family: 'Inter', sans-serif;
}
.btn-primary {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}
.btn-primary:hover {
  background: var(--navy-mid);
  border-color: var(--navy-mid);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
  transform: translateY(-1px);
}
.btn-primary-sm {
  background: var(--gold);
  color: var(--white);
  border-color: var(--gold);
  padding: 9px 18px;
  font-size: 0.88rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: all 0.2s;
  display: inline-block;
  text-decoration: none;
  font-family: 'Inter', sans-serif;
}
.btn-primary-sm:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  color: var(--white);
}
.btn-nav {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border);
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: var(--radius);
  font-weight: 500;
  display: inline-block;
  text-decoration: none;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
}
.btn-nav:hover { border-color: var(--navy); color: var(--navy); }

/* ── SECTION LABELS ── */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 10px;
  font-family: 'Inter', sans-serif;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 48px;
}

/* ── NAV ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-mark { color: var(--gold); font-size: 0.9rem; }
.logo em { font-style: italic; color: var(--gold); }
.logo-img { height: 40px; width: auto; display: block; }
.footer-logo-img { height: 48px; width: auto; display: block; margin-bottom: 10px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-body);
}
.nav-links a:hover { color: var(--navy); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--navy);
  font-size: 1.3rem;
  cursor: pointer;
}

/* ── HERO ── */
.hero {
  background: var(--navy);
  padding: 100px 0 90px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse 70% 80% at 80% 50%, rgba(184,146,42,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-version {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 20px;
  font-family: 'Inter', sans-serif;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.45);
  margin-bottom: 20px;
  font-family: 'Inter', sans-serif;
}
.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.72);
  max-width: 600px;
  margin-bottom: 40px;
}
.hero-sub strong { color: var(--white); }

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero .btn-primary {
  background: var(--gold);
  border-color: var(--gold);
}
.hero .btn-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
}
.hero .btn-outline {
  color: var(--white);
  border-color: rgba(255,255,255,0.35);
}
.hero .btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  color: var(--white);
}

.hero-attribution {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.6;
}
.hero-attribution a { color: rgba(255,255,255,0.55); }
.hero-attribution a:hover { color: var(--gold); }

/* ── THREE LAWS ── */
.laws {
  padding: 96px 0;
  background: var(--off-white);
  border-bottom: 1px solid var(--border);
}
.laws h2 { margin-bottom: 12px; }

.laws-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.law-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 4px solid var(--navy);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
}

.law-number {
  font-family: 'Merriweather', serif;
  font-size: 2rem;
  font-weight: 900;
  color: var(--light-gray);
  margin-bottom: 12px;
  line-height: 1;
}

.law-card h3 { margin-bottom: 10px; color: var(--navy); }
.law-card p { font-size: 0.92rem; color: var(--text-muted); }

.human-principle {
  background: var(--navy);
  color: var(--white);
  padding: 36px 48px;
  border-radius: var(--radius-lg);
  font-family: 'Merriweather', serif;
  font-size: 1.15rem;
  font-style: italic;
  text-align: center;
  line-height: 1.6;
  border: none;
}
.human-principle cite {
  display: block;
  margin-top: 14px;
  font-size: 0.82rem;
  font-style: normal;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── FRAMEWORK ── */
.framework {
  padding: 96px 0;
  background: var(--white);
}
.framework h2 { margin-bottom: 12px; }

.framework-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.framework-step {
  display: flex;
  align-items: flex-start;
  gap: 0;
  border-bottom: 1px solid var(--border);
}
.framework-step:last-child { border-bottom: none; }

.step-num {
  flex-shrink: 0;
  width: 80px;
  padding: 32px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Merriweather', serif;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--white);
  background: var(--navy);
}
.framework-step:nth-child(2) .step-num { background: var(--navy-mid); }
.framework-step:nth-child(3) .step-num { background: var(--navy-light); }

.step-content {
  padding: 28px 36px;
  flex: 1;
}
.step-content h3 {
  margin-bottom: 12px;
  font-size: 1.1rem;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.step-q {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  font-style: italic;
}
.step-content ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 24px;
}
.step-content li {
  font-size: 0.9rem;
  color: var(--text-body);
  padding-left: 14px;
  position: relative;
}
.step-content li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 0.8rem;
}

/* ── MEMBERSHIP ── */
.membership {
  padding: 96px 0;
  background: var(--off-white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.membership h2 { margin-bottom: 12px; }

.tiers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tier-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tier-featured {
  border-color: var(--navy);
  border-width: 2px;
  box-shadow: var(--shadow);
}
.tier-invite { opacity: 0.85; }

.tier-badge {
  display: inline-block;
  background: var(--gold-dim);
  color: var(--gold);
  border: 1px solid rgba(184,146,42,0.25);
  border-radius: 100px;
  padding: 3px 12px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'Inter', sans-serif;
}
.tier-featured .tier-badge {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.tier-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--navy);
  font-family: 'Inter', sans-serif;
}

.tier-price {
  font-family: 'Merriweather', serif;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--navy);
  line-height: 1;
}
.tier-price span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
}
.tier-free .tier-price { color: var(--gold); }

.tier-card ul {
  list-style: none;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.tier-card li {
  font-size: 0.88rem;
  color: var(--text-body);
  padding-left: 16px;
  position: relative;
}
.tier-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
  font-size: 0.8rem;
}

/* ── 50 PRINCIPLES ── */
.principles {
  padding: 96px 0;
  background: var(--white);
}
.principles h2 { margin-bottom: 12px; }

.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.principle {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.92rem;
  color: var(--text-body);
}
.p-num {
  flex-shrink: 0;
  font-family: 'Merriweather', serif;
  font-weight: 900;
  font-size: 1rem;
  color: var(--navy);
  width: 28px;
}

.principles-cta { text-align: center; }

/* ── SIGN THE ALLIANCE ── */
.sign {
  padding: 96px 0;
  background: var(--navy);
  text-align: center;
}
.sign-inner { max-width: 680px; margin: 0 auto; }
.sign .section-label { text-align: center; }
.sign h2 { color: var(--white); margin-bottom: 16px; }
.sign p { color: rgba(255,255,255,0.65); }
.sign-ctas {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 32px 0 16px;
}
.sign .btn-primary {
  background: var(--gold);
  border-color: var(--gold);
}
.sign .btn-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  color: var(--white);
}
.sign .btn-outline {
  color: var(--white);
  border-color: rgba(255,255,255,0.35);
}
.sign .btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  color: var(--white);
}
.sign-detail {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.38);
}

/* ── FOOTER ── */
.footer {
  background: var(--off-white);
  border-top: 1px solid var(--border);
  padding-top: 60px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.footer-brand .logo { font-size: 1rem; margin-bottom: 10px; }
.footer-brand p { font-size: 0.83rem; color: var(--text-muted); margin-bottom: 2px; }
.footer-version {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.7rem;
  font-family: 'Inter', monospace;
  font-weight: 600;
  color: var(--gold);
  background: var(--gold-dim);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.05em;
}

.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links h5 { margin-bottom: 6px; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--navy); }

.footer-bottom {
  padding: 18px 0;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-light);
}
.footer-bottom a { color: var(--text-light); }
.footer-bottom a:hover { color: var(--navy); }

/* ── RESPONSIVE ── */
@media (max-width: 1000px) {
  .tiers-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .laws-grid { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: 1fr; }
  .tiers-grid { grid-template-columns: 1fr; }
  .step-content ul { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; align-items: flex-start; }
  .sign-ctas { flex-direction: column; align-items: center; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}