/* =============================================
   CHIEFTAIN — Clean Dark Monotone
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500&display=swap');

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg:         #080808;
  --bg2:        #0f0f0f;
  --bg3:        #161616;
  --border:     #222222;
  --border2:    #333333;
  --text:       #d4d4d4;
  --text-dim:   #9a9a9a;
  --text-faint: #606060;
  --white:      #f5f5f5;
  --accent-glow: rgba(74,222,128,0.05);
  --mono:       'Courier New', Courier, monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.75;
  overflow-x: hidden;
  position: relative;
}

#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.topbar, .sidenav, .menu-backdrop, .hero, .strip,
.security, .waitlist, .footer, .page-main {
  position: relative;
  z-index: 1;
}

/* =============================================
   TOPBAR
   ============================================= */

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 54px;
  display: flex;
  align-items: center;
  padding: 0 28px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 500;
}

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px 4px;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--text-dim);
  transition: transform 0.22s ease, opacity 0.22s ease, background 0.2s;
}
.hamburger:hover span { background: var(--white); }

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

.topbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  margin-left: auto;
  transition: color 0.2s;
}
.topbar-logo:hover { color: var(--white); }

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

.menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
}
.menu-backdrop.open { opacity: 1; pointer-events: all; }

.sidenav {
  position: fixed;
  top: 0; left: -280px;
  width: 240px;
  height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  z-index: 700;
  display: flex;
  flex-direction: column;
  transition: left 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}
.sidenav.open { left: 0; }

.sidenav-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.sidenav-brand {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.sidenav-link {
  display: block;
  padding: 14px 24px;
  color: var(--text-dim);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  transition: color 0.18s, background 0.18s;
}
.sidenav-link:hover  { color: var(--white); background: var(--bg3); }
.sidenav-link.active { color: var(--white); }

.sidenav-footer {
  margin-top: auto;
  padding: 18px 24px;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.25em;
  color: var(--text-faint);
  text-transform: uppercase;
}

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

.label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.45em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 16px;
}

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

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

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 520px;
  width: 100%;
}

/* Pi spinner */
.pi-wrap {
  position: relative;
  width: 200px;
  height: 200px;
  margin-bottom: 52px;
  perspective: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pi-glow {
  position: absolute;
  inset: -30px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 65%);
  pointer-events: none;
}

.pi-svg {
  width: 100%;
  height: 100%;
  animation: piSpin 10s linear infinite;
  filter: drop-shadow(0 2px 16px rgba(0,0,0,0.6));
}

@keyframes piSpin {
  0%   { transform: rotateY(0deg)   scale(1);    }
  25%  { transform: rotateY(90deg)  scale(0.9);  }
  50%  { transform: rotateY(180deg) scale(1);    }
  75%  { transform: rotateY(270deg) scale(0.9);  }
  100% { transform: rotateY(360deg) scale(1);    }
}

/* Hero text */
.hero-title {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 300;
  color: var(--white);
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin-bottom: 14px;
}

.hero-sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-body {
  font-size: 14px;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 40px;
}

.cta-btn {
  display: inline-block;
  padding: 11px 32px;
  border: 1px solid var(--border2);
  color: var(--text-dim);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.cta-btn:hover {
  border-color: var(--text-dim);
  color: var(--bg);
  background: var(--text-dim);
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.35em;
  color: var(--text-faint);
  text-transform: uppercase;
  animation: scrollPulse 2.4s ease-in-out infinite;
}
.scroll-line {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, var(--border2), transparent);
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  50%       { opacity: 0.9; transform: translateX(-50%) translateY(7px); }
}

/* =============================================
   PRODUCT STRIP
   ============================================= */

.strip {
  display: flex;
  align-items: stretch;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  overflow: hidden;
  flex-wrap: wrap;
}

.strip-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 28px;
  flex: 1;
  min-width: 180px;
}

.strip-num {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--text-faint);
  letter-spacing: 0.15em;
  flex-shrink: 0;
}

.strip-label {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.strip-divider {
  width: 1px;
  background: var(--border);
  flex-shrink: 0;
}

/* =============================================
   SECURITY SECTION
   ============================================= */

.security {
  padding: 96px 24px;
  border-bottom: 1px solid var(--border);
}

.security-inner {
  max-width: 640px;
  margin: 0 auto;
}

.security .section-body {
  margin-bottom: 48px;
}

.sec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
}

.sec-item {
  display: flex;
  gap: 16px;
  padding: 28px 24px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.sec-item:nth-child(2n) { border-right: none; }
.sec-item:nth-last-child(-n+2) { border-bottom: none; }

.sec-num {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-faint);
  flex-shrink: 0;
  padding-top: 2px;
}

.sec-title {
  font-size: 12px;
  font-weight: 400;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.sec-desc {
  font-size: 12px;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.7;
  margin: 0 !important;
}

@media (max-width: 580px) {
  .sec-grid { grid-template-columns: 1fr; }
  .sec-item { border-right: none !important; }
  .sec-item:last-child { border-bottom: none; }
  .sec-item:nth-last-child(-n+2) { border-bottom: 1px solid var(--border); }
  .sec-item:last-child { border-bottom: none !important; }
}

/* =============================================
   WAITLIST
   ============================================= */

.waitlist {
  padding: 96px 24px;
  text-align: center;
}

.waitlist-inner {
  max-width: 440px;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 300;
  color: var(--white);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.section-body {
  font-size: 14px;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 40px;
}

/* Forms — bottom-border only, clean */
.email-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.form-row {
  display: flex;
  gap: 0;
}
.form-row input { flex: 1; }
.form-row input:first-child { border-right: none; }

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border2);
  color: var(--white);
  padding: 14px 0;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 13px;
  font-weight: 300;
  outline: none;
  transition: border-color 0.2s;
  resize: none;
  -webkit-appearance: none;
  border-radius: 0;
}
input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  border-bottom-color: var(--text-dim);
}
input::placeholder,
textarea::placeholder {
  color: var(--text-faint);
}

/* Add left padding when fields are side by side */
.form-row input:last-child { padding-left: 20px; }

.submit-btn {
  margin-top: 28px;
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text-dim);
  padding: 12px 28px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  cursor: pointer;
  width: 100%;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.submit-btn:hover {
  border-color: var(--text-dim);
  color: var(--bg);
  background: var(--text-dim);
}

.form-note {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.15em;
}

.field-error {
  display: block;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 9px;
  color: #666;
  letter-spacing: 0.15em;
}

/* Success */
.form-success {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 56px 0;
}
.form-success.show { display: flex; }

.success-icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.success-text {
  font-size: 15px;
  font-weight: 300;
  color: var(--white);
}
.success-sub {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 0.2em;
}

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

.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: var(--bg2);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.35em;
  color: var(--text-faint);
  text-transform: uppercase;
}

.footer-copy {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.12em;
}

.footer-nav { display: flex; gap: 28px; }
.footer-nav a {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--text-faint);
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.18s;
}
.footer-nav a:hover { color: var(--text-dim); }

/* =============================================
   INNER PAGES
   ============================================= */

.page-main {
  max-width: 680px;
  margin: 0 auto;
  padding: 54px 32px 80px;
  min-height: 100vh;
}

.page-hero {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 56px;
}

.page-title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 300;
  color: var(--white);
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.title-line {
  width: 28px;
  height: 1px;
  background: var(--border2);
}

/* About blocks */
.content-block {
  display: flex;
  gap: 36px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.content-block:last-child { border-bottom: none; }

.block-num {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.2em;
  color: var(--text-faint);
  min-width: 20px;
  padding-top: 3px;
  flex-shrink: 0;
}

.block-body { flex: 1; }

.block-title {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.block-body p {
  font-size: 14px;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 12px;
}
.block-body p:last-child { margin-bottom: 0; }
.block-body strong { color: var(--text); font-weight: 400; }

/* Contact */
.contact-content { max-width: 500px; }

.contact-intro { margin-bottom: 40px; }
.contact-intro p {
  font-size: 14px;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.8;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.field-group {
  display: flex;
  flex-direction: column;
  padding-top: 8px;
}

.field-group label {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.35em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.field-group textarea {
  padding-top: 10px;
  padding-bottom: 10px;
}

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

.page-main,
.hero {
  animation: fadeUp 0.45s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@media (max-width: 580px) {
  .strip { flex-direction: column; }
  .strip-divider { width: 100%; height: 1px; }
  .strip-item { justify-content: flex-start; }

  .form-row { flex-direction: column; }
  .form-row input:first-child { border-right: none; border-bottom: 1px solid var(--border2); }
  .form-row input:last-child { padding-left: 0; }

  .content-block { flex-direction: column; gap: 10px; }

  .pi-wrap { width: 170px; height: 170px; }

  .page-main { padding-left: 20px; padding-right: 20px; }
}