/* ============================================================
   PIYOM CAPITAL — Main Stylesheet
   Ultra-futuristic minimalist | Earth tones | Dark ceramic
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400;1,500&display=swap');

/* ── CSS Variables ────────────────────────────────────────── */
:root {
  /* Earth / Ceramic Dark palette */
  --bg-primary:       #0a0a08;
  --bg-secondary:     #111110;
  --bg-card:          #161614;
  --bg-card-hover:    #1c1c1a;

  --gold:             #c9a96e;
  --gold-light:       #dfc190;
  --gold-muted:       #a8894e;
  --cream:            #f0ead8;
  --cream-muted:      #c8bfa4;
  --terracotta:       #8c5e48;
  --warm-grey:        #3a3832;
  --mid-grey:         #2a2a27;

  --text-primary:     #e8e0cc;
  --text-secondary:   #9a9281;
  --text-muted:       #5a5650;
  --text-inverse:     #0a0a08;

  --border-subtle:    rgba(201, 169, 110, 0.12);
  --border-mid:       rgba(201, 169, 110, 0.25);
  --border-strong:    rgba(201, 169, 110, 0.5);

  --font-sans:        'Space Grotesk', sans-serif;
  --font-mono:        'Space Mono', monospace;
  --font-display:     'Cormorant Garamond', serif;

  --radius-sm:        4px;
  --radius-md:        8px;
  --radius-lg:        16px;

  --transition-fast:  0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-mid:   0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:  0.8s cubic-bezier(0.4, 0, 0.2, 1);

  --max-width:        1200px;
  --section-pad:      clamp(80px, 10vw, 140px) clamp(20px, 5vw, 60px);
}

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* RTL global override — applied when html[dir="rtl"] */
html[dir="rtl"] body {
  direction: rtl;
  text-align: right;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }

/* ── Page Loader ──────────────────────────────────────────── */
#page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
#page-loader.hidden { opacity: 0; visibility: hidden; }

.loader-pi {
  font-family: var(--font-mono);
  font-size: clamp(60px, 10vw, 100px);
  color: var(--gold);
  animation: loaderPulse 1.6s ease-in-out infinite;
  letter-spacing: -2px;
}
.loader-digits {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 3px;
  animation: fadeInOut 1.6s ease-in-out infinite;
}
@keyframes loaderPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.94); }
}
@keyframes fadeInOut {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.8; }
}

/* ── Navigation ───────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 clamp(20px, 5vw, 60px);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-mid), border-color var(--transition-mid);
  border-bottom: 1px solid transparent;
}
#nav.scrolled {
  background: rgba(10, 10, 8, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border-subtle);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo-pi {
  font-family: var(--font-mono);
  font-size: 28px;
  color: var(--gold);
  font-weight: 700;
  line-height: 1;
}
.nav-logo-text {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.nav-logo-name {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--cream);
  text-transform: uppercase;
}
.nav-logo-sub {
  font-family: var(--font-sans);
  font-size: 9px;
  letter-spacing: 3px;
  color: var(--gold-muted);
  text-transform: uppercase;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}
.nav-links a:hover { color: var(--gold); }

/* Language Selector */
.lang-selector {
  position: relative;
}
.lang-btn {
  background: none;
  border: 1px solid var(--border-mid);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}
.lang-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.lang-btn::after {
  content: '▾';
  font-size: 10px;
  opacity: 0.6;
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  min-width: 180px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: 100;
}
html[dir="rtl"] .lang-dropdown { right: auto; left: 0; }

.lang-selector:hover .lang-dropdown,
.lang-selector:focus-within .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  letter-spacing: 0.5px;
}
.lang-dropdown a:hover { background: var(--bg-card-hover); color: var(--gold); }
.lang-dropdown a.active { color: var(--gold); background: rgba(201,169,110,0.08); }
.lang-flag { font-size: 16px; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-secondary);
  transition: all var(--transition-fast);
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: rgba(10,10,8,0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 24px clamp(20px,5vw,60px);
  z-index: 999;
  flex-direction: column;
  gap: 16px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: color var(--transition-fast);
}
.mobile-nav a:hover { color: var(--gold); }
.mobile-nav-langs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 8px;
}
.mobile-nav-langs a {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-muted);
}

/* ── Hero Section ─────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px clamp(20px, 5vw, 60px) 80px;
  overflow: hidden;
  text-align: center;
}

#pi-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
}

.hero-bg-pi {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  overflow: hidden;
}
.hero-bg-pi-symbol {
  font-family: var(--font-mono);
  font-size: clamp(300px, 50vw, 700px);
  color: var(--gold);
  opacity: 0.025;
  line-height: 1;
  user-select: none;
  animation: piFloat 12s ease-in-out infinite;
}
@keyframes piFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-20px) scale(1.02); }
}

.hero-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold-muted);
  border: 1px solid var(--border-mid);
  padding: 8px 20px;
  border-radius: 40px;
  margin-bottom: 40px;
  display: inline-block;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 110px);
  font-weight: 300;
  line-height: 1.05;
  color: var(--cream);
  letter-spacing: -1px;
  position: relative;
  z-index: 1;
  max-width: 900px;
}
.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-sub {
  font-size: clamp(14px, 2vw, 17px);
  font-weight: 300;
  color: var(--text-secondary);
  letter-spacing: 1px;
  line-height: 1.9;
  max-width: 640px;
  margin: 32px auto 0;
  position: relative;
  z-index: 1;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}
.hero-scroll-text {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { height: 0; opacity: 0; }
  50%  { height: 48px; opacity: 1; }
  100% { height: 0; opacity: 0; }
}

.pi-digits-strip {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 32px;
  overflow: hidden;
  z-index: 1;
  border-top: 1px solid var(--border-subtle);
}
.pi-digits-inner {
  display: flex;
  white-space: nowrap;
  animation: scrollDigits 40s linear infinite;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 4px;
  color: var(--gold-muted);
  line-height: 32px;
  opacity: 0.6;
}
@keyframes scrollDigits {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
html[dir="rtl"] .pi-digits-inner { animation: scrollDigitsRTL 40s linear infinite; }
@keyframes scrollDigitsRTL {
  0%   { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

/* ── Section Shared ───────────────────────────────────────── */
section {
  position: relative;
  padding: var(--section-pad);
}
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold-muted);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--gold-muted);
}
html[dir="rtl"] .section-label { flex-direction: row-reverse; }
html[dir="rtl"] .section-label::before { display: none; }
html[dir="rtl"] .section-label::after {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--gold-muted);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 300;
  line-height: 1.15;
  color: var(--cream);
  margin-bottom: 24px;
}
.section-title em {
  font-style: italic;
  color: var(--gold);
}

.section-body {
  font-size: clamp(15px, 1.5vw, 17px);
  color: var(--text-secondary);
  line-height: 1.9;
  font-weight: 300;
  max-width: 740px;
}
.section-body p + p { margin-top: 20px; }

/* ── Section 1: Alignment ─────────────────────────────────── */
#alignment {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
#alignment .section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.alignment-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}
.circle-rings {
  position: relative;
  width: 280px;
  height: 280px;
}
.circle-ring {
  position: absolute;
  border: 1px solid var(--gold);
  border-radius: 50%;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: ringExpand 4s ease-in-out infinite;
}
.circle-ring:nth-child(1) { width: 80px; height: 80px; opacity: 0.8; animation-delay: 0s; }
.circle-ring:nth-child(2) { width: 140px; height: 140px; opacity: 0.5; animation-delay: 0.6s; }
.circle-ring:nth-child(3) { width: 200px; height: 200px; opacity: 0.3; animation-delay: 1.2s; }
.circle-ring:nth-child(4) { width: 260px; height: 260px; opacity: 0.15; animation-delay: 1.8s; }
@keyframes ringExpand {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: inherit; }
  50%       { transform: translate(-50%, -50%) scale(1.06); }
}
.circle-center-pi {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: 48px;
  color: var(--gold);
  font-weight: 700;
  animation: piPulse 4s ease-in-out infinite;
}
@keyframes piPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

/* ── Section 2: Welcome ───────────────────────────────────── */
#welcome {
  background: var(--bg-primary);
}
#welcome .section-inner {
  max-width: 900px;
}
.welcome-quote {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 40px);
  font-style: italic;
  font-weight: 300;
  color: var(--gold);
  line-height: 1.4;
  border-left: 2px solid var(--gold);
  padding-left: 28px;
  margin-bottom: 48px;
}
html[dir="rtl"] .welcome-quote {
  border-left: none;
  border-right: 2px solid var(--gold);
  padding-left: 0;
  padding-right: 28px;
}

.welcome-pillars {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
}
.pillar-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold-muted);
  border: 1px solid var(--border-mid);
  padding: 8px 16px;
  border-radius: 40px;
  transition: all var(--transition-fast);
}
.pillar-tag:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(201,169,110,0.06);
}

/* ── Section 3: Three Pillars ─────────────────────────────── */
#engage {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}
.engage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}

.engage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: all var(--transition-mid);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.engage-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity var(--transition-mid);
}
.engage-card:hover { border-color: var(--border-mid); background: var(--bg-card-hover); transform: translateY(-4px); }
.engage-card:hover::before { opacity: 1; }

.engage-card-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--gold-muted);
}
.engage-card-icon {
  font-size: 32px;
  line-height: 1;
}
.engage-card-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 400;
  color: var(--cream);
  line-height: 1.2;
}
.engage-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-weight: 300;
}
.engage-card-btn {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--border-mid);
  padding: 10px 20px;
  border-radius: 40px;
  transition: all var(--transition-fast);
  background: none;
  width: fit-content;
}
.engage-card-btn:hover {
  background: rgba(201,169,110,0.1);
  border-color: var(--gold);
}

/* ── Modals ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-mid);
}
.modal-overlay.open { opacity: 1; visibility: visible; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(32px, 5vw, 56px);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform var(--transition-mid);
  position: relative;
}
.modal-overlay.open .modal { transform: translateY(0); }

.modal-close {
  position: absolute;
  top: 20px; right: 20px;
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 32px; height: 32px;
  border-radius: 50%;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
html[dir="rtl"] .modal-close { right: auto; left: 20px; }
.modal-close:hover { border-color: var(--gold); color: var(--gold); }

.modal-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold-muted);
  margin-bottom: 12px;
}
.modal-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 300;
  color: var(--cream);
  line-height: 1.2;
  margin-bottom: 8px;
}
.modal-sub {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 12px 16px;
  transition: border-color var(--transition-fast);
  outline: none;
  -webkit-appearance: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus { border-color: var(--gold); }
.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-muted); }
.form-select { cursor: pointer; }
.form-select option { background: var(--bg-card); }
.form-textarea { resize: vertical; min-height: 100px; line-height: 1.6; }

.form-submit {
  width: 100%;
  background: var(--gold);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  transition: all var(--transition-fast);
  margin-top: 8px;
}
.form-submit:hover { background: var(--gold-light); transform: translateY(-1px); }
.form-submit:active { transform: translateY(0); }

.form-notice {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 16px;
  text-align: center;
}
.form-success {
  text-align: center;
  padding: 40px 0;
  display: none;
}
.form-success.show { display: block; }
.form-success-icon {
  font-size: 48px;
  margin-bottom: 16px;
}
.form-success-title {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--gold);
  margin-bottom: 8px;
}
.form-success-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Section 4: Pi Meaning ────────────────────────────────── */
#pi-meaning {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}
.pi-meaning-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-bottom: 80px;
}
.pi-orbit-wrap {
  position: relative;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pi-orbit {
  position: relative;
  width: 220px;
  height: 220px;
}
.orbit-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--border-mid);
}
.orbit-ring:nth-child(1) { animation: orbitSpin1 20s linear infinite; }
.orbit-ring:nth-child(2) { animation: orbitSpin2 30s linear infinite reverse; inset: 20px; border-color: var(--border-subtle); }
.orbit-ring:nth-child(3) { animation: orbitSpin1 45s linear infinite; inset: 40px; border-color: rgba(201,169,110,0.08); }
@keyframes orbitSpin1 { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes orbitSpin2 { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.orbit-dot {
  position: absolute;
  width: 6px; height: 6px;
  background: var(--gold);
  border-radius: 50%;
  top: -3px; left: calc(50% - 3px);
}
.orbit-formula {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold-muted);
  white-space: nowrap;
}
.orbit-formula:nth-child(1) { top: -30px; left: 50%; transform: translateX(-50%); }
.orbit-formula:nth-child(2) { bottom: -30px; left: 50%; transform: translateX(-50%); }
.orbit-formula:nth-child(3) { top: 50%; right: -90px; transform: translateY(-50%); }
.orbit-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: 56px;
  color: var(--gold);
  font-weight: 700;
}

/* Pi article accordion */
.pi-accordion {
  border-top: 1px solid var(--border-subtle);
  margin-top: 0;
}
.pi-accordion-item {
  border-bottom: 1px solid var(--border-subtle);
}
.pi-accordion-trigger {
  width: 100%;
  background: none;
  border: none;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  gap: 16px;
  text-align: left;
}
html[dir="rtl"] .pi-accordion-trigger { text-align: right; }
.pi-accordion-trigger-title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 400;
  color: var(--cream);
  line-height: 1.3;
}
.pi-accordion-trigger-icon {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}
.pi-accordion-item.open .pi-accordion-trigger-icon { transform: rotate(45deg); }
.pi-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.pi-accordion-item.open .pi-accordion-content { max-height: 2000px; }
.pi-accordion-body {
  padding-bottom: 28px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  font-weight: 300;
}
.pi-accordion-body p + p { margin-top: 16px; }

/* ── Footer ───────────────────────────────────────────────── */
#footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 40px clamp(20px, 5vw, 60px);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-logo-pi {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--gold);
  font-weight: 700;
}
.footer-logo-name {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cream-muted);
}
.footer-divider {
  height: 1px;
  background: var(--border-subtle);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-links a {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--gold); }

/* ── Scroll Reveal ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── Divider ──────────────────────────────────────────────── */
.gold-divider {
  width: 48px;
  height: 1px;
  background: var(--gold);
  margin: 32px 0;
}
html[dir="rtl"] .gold-divider { margin-left: auto; margin-right: 0; }

/* ── CTA Bar (above footer, all pages) ────────────────────── */
.cta-bar {
  background: var(--bg-card);
  border-top: 1px solid rgba(201,169,110,.15);
  border-bottom: 1px solid rgba(201,169,110,.08);
  padding: 3rem clamp(20px, 5vw, 60px);
}
.cta-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-bar-text { flex: 1; min-width: 200px; }
.cta-bar-label {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .4rem;
}
.cta-bar-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 300;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.2;
}
.cta-bar-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}
.cta-bar-btn {
  display: inline-block;
  padding: .8rem 1.8rem;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}
.cta-bar-btn:hover { background: var(--gold); color: var(--bg-primary); }
.cta-bar-btn--primary { background: var(--gold); color: var(--bg-primary); }
.cta-bar-btn--primary:hover { background: var(--gold-light); border-color: var(--gold-light); }
@media (max-width: 600px) {
  .cta-bar-inner { flex-direction: column; align-items: flex-start; }
  .cta-bar-actions { width: 100%; }
  .cta-bar-btn { flex: 1; text-align: center; }
}

/* ── Legal Pages ──────────────────────────────────────────── */
.legal-page {
  padding: 120px clamp(20px, 5vw, 60px) 80px;
  max-width: 800px;
  margin: 0 auto;
}
.legal-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 300;
  color: var(--cream);
  margin-bottom: 8px;
}
.legal-date {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--gold-muted);
  margin-bottom: 48px;
}
.legal-body h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  color: var(--gold);
  margin: 40px 0 16px;
}
.legal-body p { font-size: 15px; color: var(--text-secondary); line-height: 1.9; margin-bottom: 16px; }
.legal-body ul { margin-left: 20px; margin-bottom: 16px; }
.legal-body ul li { font-size: 15px; color: var(--text-secondary); line-height: 1.9; margin-bottom: 8px; list-style: disc; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  #alignment .section-inner { grid-template-columns: 1fr; gap: 48px; }
  .alignment-visual { min-height: 280px; }
  .pi-meaning-header { grid-template-columns: 1fr; gap: 48px; }
  .engage-grid { grid-template-columns: 1fr; }
  .pi-orbit-wrap { height: 240px; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .lang-selector { display: none; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  html[dir="rtl"] .footer-bottom { align-items: flex-end; }
}

@media (max-width: 480px) {
  .engage-card { padding: 32px 24px; }
  .modal { padding: 28px 20px; }
}

/* ── Utility ──────────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}