/* RESET & BASE */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #07080d;
  --bg-alt: #0d1018;
  --surface: #121620;
  --border: rgba(255,255,255,0.07);
  --blue: #4A9EFF;
  --blue-dim: rgba(74,158,255,0.15);
  --orange: #FF6B35;
  --text: #E8EAF0;
  --text-muted: rgba(232,234,240,0.5);
  --text-dim: rgba(232,234,240,0.25);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 clamp(24px, 5vw, 64px);
  height: 64px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: rgba(7,8,13,0.85);
  backdrop-filter: blur(16px);
}
.nav-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.4rem;
  letter-spacing: 0.2em;
  color: var(--text);
}
.nav-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* SECTION LABELS */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px clamp(24px, 5vw, 80px) 80px;
  position: relative;
  overflow: hidden;
}
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(74,158,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74,158,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.hero-content {
  max-width: 1100px;
  position: relative;
  z-index: 1;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 2rem;
  font-weight: 500;
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(74,158,255,0.4); }
  50% { opacity: 0.7; transform: scale(1.2); box-shadow: 0 0 0 6px rgba(74,158,255,0); }
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 900;
  line-height: 1.05;
  color: var(--text);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.hero-headline em {
  font-style: italic;
  color: var(--blue);
}
.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 3.5rem;
  font-weight: 300;
}
.hero-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

/* MONITOR RING */
.monitor-ring {
  position: relative;
  width: 240px;
  height: 240px;
  margin: 0 auto;
}
.ring-sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(74,158,255,0.2);
  animation: sweep 4s linear infinite;
}
.ring-sweep::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 12px var(--blue);
  animation: sweep 4s linear infinite;
}
@keyframes sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.ring-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid rgba(74,158,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}
.ring-icon {
  font-family: monospace;
  font-size: 1.2rem;
  color: var(--blue);
  font-weight: 700;
}
.ring-node {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
}
.ring-node.n1 { top: 12%; left: 50%; transform: translateX(-50%); }
.ring-node.n2 { top: 50%; right: 8%; transform: translateY(-50%); }
.ring-node.n3 { bottom: 12%; left: 50%; transform: translateX(-50%); }
.ring-node.n4 { top: 50%; left: 8%; transform: translateY(-50%); animation: pulse 2s ease-in-out infinite; animation-delay: 1s; }

/* BRIEFING CARD */
.briefing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem 1.75rem;
  position: relative;
  overflow: hidden;
}
.briefing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), transparent);
}
.bc-date {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
  font-weight: 600;
}
.bc-label {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.25rem;
}
.bc-items { display: flex; flex-direction: column; gap: 0.85rem; }
.bc-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.bc-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}
.bc-dot.alert { background: var(--orange); box-shadow: 0 0 6px rgba(255,107,53,0.5); }
.bc-dot.signal { background: var(--blue); box-shadow: 0 0 6px rgba(74,158,255,0.5); }
.bc-dot.neutral { background: rgba(232,234,240,0.3); }
.bc-footer {
  margin-top: 1.25rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* HOW SECTION */
.how { padding: clamp(60px, 8vw, 100px) clamp(24px, 5vw, 80px); background: var(--bg-alt); }
.how-inner { max-width: 1100px; margin: 0 auto; }
.how-head { margin-bottom: 4rem; }
.how-head h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
}
.how-steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0;
  align-items: start;
}
.step { padding: 0 1rem; }
.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--blue);
  opacity: 0.25;
  margin-bottom: 0.75rem;
  line-height: 1;
}
.step h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.step p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 300;
}
.step-connector {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  margin-top: 2rem;
  flex-shrink: 0;
}

/* FEATURES */
.features { padding: clamp(60px, 8vw, 100px) clamp(24px, 5vw, 80px); }
.features-inner { max-width: 1100px; margin: 0 auto; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.feature {
  background: var(--bg);
  padding: 2rem 1.75rem;
  transition: background 0.2s;
}
.feature:hover { background: var(--bg-alt); }
.feat-icon {
  color: var(--blue);
  margin-bottom: 1rem;
  opacity: 0.8;
}
.feature h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.feature p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 300;
}

/* CLOSING */
.closing { padding: clamp(80px, 10vw, 140px) clamp(24px, 5vw, 80px); text-align: center; }
.closing-inner { max-width: 800px; margin: 0 auto; }
.closing-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 2.5rem;
  font-weight: 500;
}
.badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.closing-headline strong { color: var(--blue); font-style: italic; }
.closing-sub {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 3.5rem;
  line-height: 1.7;
  font-weight: 300;
}
.closing-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}
.stat { padding: 0 3rem; }
.stat-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1;
  margin-bottom: 0.35rem;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.stat-sep {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* PRICING */
.pricing-row {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}
.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem 1.75rem;
  width: 240px;
  text-align: center;
  position: relative;
  transition: border-color 0.2s;
}
.pricing-card:hover { border-color: rgba(74,158,255,0.4); }
.pricing-card.featured {
  border-color: var(--blue);
  box-shadow: 0 0 0 1px var(--blue), 0 0 30px rgba(74,158,255,0.1);
}
.pc-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--blue);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  white-space: nowrap;
}
.pc-name {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.pc-price {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1;
  margin-bottom: 1.25rem;
}
.pc-price span { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
.pc-features {
  list-style: none;
  text-align: left;
  margin-bottom: 1.75rem;
}
.pc-features li {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}
.pc-features li:last-child { border-bottom: none; }
.pc-cta {
  display: inline-block;
  width: 100%;
  padding: 0.7rem;
  background: transparent;
  border: 1px solid var(--blue);
  color: var(--blue);
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}
.pc-cta:hover { background: var(--blue-dim); }
.featured-cta {
  background: var(--blue);
  color: #fff;
}
.featured-cta:hover { background: #3d8de0; border-color: #3d8de0; }

/* MODAL */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(7,8,13,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  width: 100%;
  max-width: 440px;
  text-align: center;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}
.modal-close:hover { color: var(--text); }
.modal-kicker {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.modal-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.modal-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}
.signup-form { display: flex; flex-direction: column; gap: 0.75rem; }
.signup-form input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--text);
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s;
}
.signup-form input:focus { border-color: var(--blue); }
.signup-form input::placeholder { color: var(--text-dim); }
.btn-signup {
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.8rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s;
  font-family: var(--font-body);
}
.btn-signup:hover { background: #3d8de0; }
.btn-signup:disabled { opacity: 0.6; cursor: not-allowed; }
.signup-msg {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  min-height: 1.2rem;
}
.signup-msg.success { color: #4ade80; }
.signup-msg.error { color: var(--orange); }

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem clamp(24px, 5vw, 80px);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--text);
  display: block;
  margin-bottom: 0.35rem;
}
.footer-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.footer-copy {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-visual { grid-template-columns: 1fr; gap: 2.5rem; }
  .how-steps { grid-template-columns: 1fr; gap: 2rem; }
  .step-connector { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .closing-stats { flex-direction: column; gap: 2rem; }
  .stat-sep { width: 48px; height: 1px; }
  .hero-headline { font-size: clamp(2.5rem, 9vw, 4rem); }
  .hero { padding-top: 100px; }
}

@media (max-width: 480px) {
  .monitor-ring { width: 160px; height: 160px; }
  .stat { padding: 0 1.5rem; }
}