:root {
  --bg: #07070d;
  --surface: #0e0e18;
  --surface-2: #141420;
  --border: #1e1e2e;
  --text: #ddd8f0;
  --text-2: #8a8aa0;
  --text-3: #4a4a5a;
  --accent-gold: #f0a030;
  --accent-gold-dim: rgba(240,160,48,0.1);
  --accent-emerald: #10b981;
  --accent-emerald-dim: rgba(16,185,129,0.1);
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --container: 1100px;
  --radius: 10px;
}

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

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

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(7,7,13,0.85); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.wordmark { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.mark { font-size: 20px; color: var(--accent-gold); }
.name { font-family: var(--font-head); font-weight: 600; font-size: 17px; color: var(--text); letter-spacing: -0.02em; }
.nav-tag { font-size: 13px; color: var(--text-2); font-family: var(--font-head); }

/* Hero */
.hero { padding: 96px 0 80px; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.sol-luna-label { font-size: 12px; font-family: var(--font-head); text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent-gold); margin-bottom: 20px; }
.hero-headline { font-family: var(--font-head); font-size: clamp(40px,5vw,60px); font-weight: 700; line-height: 1.08; letter-spacing: -0.03em; color: var(--text); margin-bottom: 24px; }
.gradient-text { background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-emerald) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 17px; color: var(--text-2); line-height: 1.7; max-width: 440px; margin-bottom: 40px; }

/* Toggle Mockup */
.toggle-mockup { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.toggle-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-3); font-family: var(--font-head); margin-bottom: 12px; }
.toggle-row { display: flex; gap: 8px; margin-bottom: 16px; }
.mode-btn { flex: 1; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface-2); color: var(--text-2); font-family: var(--font-head); font-size: 14px; font-weight: 500; display: flex; align-items: center; justify-content: center; gap: 6px; }
.mode-btn.mode-sol { background: var(--accent-gold-dim); border-color: rgba(240,160,48,0.3); color: var(--accent-gold); }
.mode-btn.mode-luna { background: var(--accent-emerald-dim); border-color: rgba(16,185,129,0.3); color: var(--accent-emerald); }
.output-label { font-size: 11px; color: var(--text-3); font-family: var(--font-head); margin-bottom: 8px; }
.output-text { font-size: 13px; color: var(--text-2); line-height: 1.6; }

/* Neural Visual - CSS Grid */
.neural-visual { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 360px; }
.neural-grid { position: relative; width: 320px; height: 300px; }
.ng { position: absolute; width: 8px; height: 8px; border-radius: 50%; }
.ng:nth-child(-n+7) { background: var(--accent-gold); box-shadow: 0 0 12px var(--accent-gold), 0 0 30px rgba(240,160,48,0.4); }
.ng:nth-child(n+8) { background: var(--accent-emerald); box-shadow: 0 0 12px var(--accent-emerald), 0 0 30px rgba(16,185,129,0.4); }
.ng-1{left:12%;top:15%;animation:nn 3.2s 0.0s infinite alternate}.ng-2{left:28%;top:22%;animation:nn 3.8s 0.5s infinite alternate}.ng-3{left:48%;top:10%;animation:nn 2.9s 0.2s infinite alternate}.ng-4{left:68%;top:18%;animation:nn 4.1s 0.8s infinite alternate}.ng-5{left:85%;top:25%;animation:nn 3.5s 0.3s infinite alternate}.ng-6{left:18%;top:45%;animation:nn 3.1s 0.6s infinite alternate}.ng-7{left:40%;top:42%;animation:nn 2.7s 1.0s infinite alternate}.ng-8{left:55%;top:48%;animation:nn 3.9s 0.4s infinite alternate}.ng-9{left:75%;top:40%;animation:nn 3.3s 0.7s infinite alternate}.ng-10{left:10%;top:70%;animation:nn 4.0s 0.9s infinite alternate}.ng-11{left:30%;top:78%;animation:nn 2.8s 0.1s infinite alternate}.ng-12{left:52%;top:72%;animation:nn 3.6s 0.5s infinite alternate}.ng-13{left:72%;top:68%;animation:nn 3.0s 0.2s infinite alternate}.ng-14{left:88%;top:75%;animation:nn 2.6s 0.8s infinite alternate}.ng-15{left:45%;top:90%;animation:nn 3.4s 0.3s infinite alternate}
.nl { position: absolute; }
.nl-h1{left:12%;top:15%;width:36%;height:1px;background:linear-gradient(90deg,var(--accent-gold),transparent);opacity:0.3;top:15%;}
.nl-h2{left:28%;top:22%;width:40%;height:1px;background:linear-gradient(90deg,var(--accent-gold),transparent);opacity:0.25;top:22%;}
.nl-h3{left:40%;top:42%;width:15%;height:1px;background:linear-gradient(90deg,var(--accent-emerald),transparent);opacity:0.3;top:42%;}
.nl-h4{left:55%;top:48%;width:20%;height:1px;background:linear-gradient(90deg,var(--accent-emerald),transparent);opacity:0.25;top:48%;}
.nl-v1{left:28%;top:22%;width:1px;height:20%;background:linear-gradient(180deg,var(--accent-gold),transparent);opacity:0.25;}
.nl-v2{left:40%;top:42%;width:1px;height:30%;background:linear-gradient(180deg,var(--accent-gold),var(--accent-emerald));opacity:0.2;}
.nl-v3{left:55%;top:48%;width:1px;height:20%;background:linear-gradient(180deg,var(--accent-emerald),transparent);opacity:0.25;}
.nl-v4{left:72%;top:40%;width:1px;height:28%;background:linear-gradient(180deg,var(--accent-emerald),transparent);opacity:0.2;}
@keyframes nn{0%{transform:scale(1);opacity:0.7}100%{transform:scale(1.5);opacity:1}}

.brain-tag { position: absolute; font-family: var(--font-head); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; padding: 6px 12px; border-radius: 6px; }
.sol-tag { top: 20px; left: 20px; background: var(--accent-gold-dim); color: var(--accent-gold); border: 1px solid rgba(240,160,48,0.3); }
.luna-tag { bottom: 20px; right: 20px; background: var(--accent-emerald-dim); color: var(--accent-emerald); border: 1px solid rgba(16,185,129,0.3); }

/* Revenue Loop */
.loop-section { padding: 96px 0; border-top: 1px solid var(--border); }
.section-tag { font-size: 11px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent-gold); font-family: var(--font-head); margin-bottom: 16px; }
.section-title { font-family: var(--font-head); font-size: clamp(28px,3.5vw,44px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 16px; max-width: 560px; }
.section-desc { font-size: 16px; color: var(--text-2); margin-bottom: 56px; max-width: 480px; }
.loop-diagram { display: flex; align-items: stretch; gap: 0; margin-bottom: 48px; }
.loop-step { flex: 1; background: var(--surface); border: 1px solid var(--border); padding: 24px 20px; border-radius: var(--radius); text-align: center; }
.loop-step .step-icon { font-size: 24px; margin-bottom: 10px; }
.loop-step .step-name { font-family: var(--font-head); font-weight: 600; font-size: 15px; margin-bottom: 6px; }
.loop-step .step-detail { font-size: 13px; color: var(--text-2); line-height: 1.5; }
.loop-step.step-sol { border-color: rgba(240,160,48,0.25); background: var(--accent-gold-dim); }
.loop-step.step-luna { border-color: rgba(16,185,129,0.25); background: var(--accent-emerald-dim); }
.loop-arrow { display: flex; align-items: center; font-size: 18px; color: var(--text-3); padding: 0 12px; flex-shrink: 0; }
.metric-row { display: flex; gap: 40px; padding: 28px 32px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.metric-val { font-family: var(--font-head); font-size: 32px; font-weight: 700; letter-spacing: -0.03em; margin-bottom: 4px; }
.metric-label { font-size: 13px; color: var(--text-2); }

/* Personas */
.personas-section { padding: 96px 0; border-top: 1px solid var(--border); }
.persona-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 40px; }
.persona-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.persona-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 20px; font-family: var(--font-head); font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.sol-badge { background: var(--accent-gold-dim); color: var(--accent-gold); border: 1px solid rgba(240,160,48,0.3); }
.luna-badge { background: var(--accent-emerald-dim); color: var(--accent-emerald); border: 1px solid rgba(16,185,129,0.3); }
.persona-name { font-family: var(--font-head); font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.persona-desc { font-size: 14px; color: var(--text-2); line-height: 1.6; margin-bottom: 16px; }
.persona-traits { display: flex; gap: 6px; margin-bottom: 20px; }
.trait { font-size: 11px; padding: 4px 10px; border-radius: 4px; background: var(--surface-2); color: var(--text-2); font-family: var(--font-head); }
.example-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); margin-bottom: 8px; font-family: var(--font-head); }
.example-text { font-size: 13px; color: var(--text-2); line-height: 1.6; padding: 16px; background: var(--bg); border-radius: 8px; border-left: 2px solid var(--text-3); }
.protocol-callout { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; display: flex; align-items: flex-start; gap: 16px; }
.protocol-icon { font-size: 20px; flex-shrink: 0; margin-top: 1px; }
.protocol-text { font-size: 14px; color: var(--text-2); line-height: 1.7; }
.protocol-text strong { color: var(--text); }

/* How It Works */
.how-section { padding: 96px 0; border-top: 1px solid var(--border); }
.step-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.step-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.step-num { font-family: var(--font-head); font-size: 12px; font-weight: 600; color: var(--accent-gold); letter-spacing: 0.1em; margin-bottom: 12px; }
.step-title { font-family: var(--font-head); font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.step-body { font-size: 14px; color: var(--text-2); line-height: 1.7; margin-bottom: 16px; }
.step-detail-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 11px; padding: 4px 10px; border-radius: 4px; background: var(--surface-2); color: var(--text-2); font-family: var(--font-head); border: 1px solid var(--border); }

/* Manifesto */
.manifesto-section { padding: 96px 0; border-top: 1px solid var(--border); }
.manifesto-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.manifesto-body { font-size: 15px; color: var(--text-2); line-height: 1.8; margin-bottom: 16px; }
.manifesto-body--two { font-family: var(--font-head); font-size: 20px; font-weight: 600; color: var(--text); }

/* Closing */
.closing-section { padding: 96px 0 80px; border-top: 1px solid var(--border); }
.closing-inner { text-align: center; }
.closing-headline { font-family: var(--font-head); font-size: clamp(40px,5vw,64px); font-weight: 700; letter-spacing: -0.03em; line-height: 1.08; margin-bottom: 20px; }
.closing-sub { font-size: 17px; color: var(--text-2); max-width: 480px; margin: 0 auto 56px; line-height: 1.7; }
.closing-visual { position: relative; width: 200px; height: 200px; margin: 0 auto; display: flex; align-items: center; justify-content: center; }
.visual-ring { position: absolute; border-radius: 50%; border: 1px solid; opacity: 0.4; }
.ring-sol { width: 160px; height: 160px; border-color: var(--accent-gold); animation: pulse-sol 3s ease-in-out infinite; }
.ring-luna { width: 110px; height: 110px; border-color: var(--accent-emerald); animation: pulse-luna 3s ease-in-out infinite 1s; }
.visual-center { width: 70px; height: 70px; background: var(--surface); border: 1px solid var(--border); border-radius: 50%; display: flex; align-items: center; justify-content: center; z-index: 1; }
.center-text { font-family: var(--font-head); font-size: 11px; font-weight: 600; text-align: center; line-height: 1.3; color: var(--text-2); }
@keyframes pulse-sol{0%,100%{transform:scale(1);opacity:0.4}50%{transform:scale(1.05);opacity:0.6}}
@keyframes pulse-luna{0%,100%{transform:scale(1);opacity:0.4}50%{transform:scale(1.07);opacity:0.6}}

/* Demo */
.demo-section { padding: 96px 0; border-top: 1px solid var(--border); }
.demo-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; margin-top: 0; }
.demo-prompt-row { display: flex; gap: 12px; margin-bottom: 20px; }
.demo-input { flex: 1; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 14px 18px; color: var(--text); font-size: 15px; font-family: var(--font-body); outline: none; transition: border-color 0.2s; }
.demo-input:focus { border-color: var(--accent-gold); }
.demo-input::placeholder { color: var(--text-3); }
.demo-submit { padding: 14px 24px; background: var(--accent-gold); color: #000; border: none; border-radius: 8px; font-family: var(--font-head); font-weight: 600; font-size: 14px; cursor: pointer; transition: opacity 0.2s; }
.demo-submit:hover { opacity: 0.85; }
.demo-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.demo-toggle { margin-bottom: 20px; }
.demo-output-area { min-height: 160px; margin-bottom: 0; }
.demo-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px; gap: 12px; }
.placeholder-icon { font-size: 28px; color: var(--text-3); }
.placeholder-text { font-size: 14px; color: var(--text-3); text-align: center; line-height: 1.6; }
.demo-output { font-size: 14px; color: var(--text); line-height: 1.8; white-space: pre-wrap; padding: 24px; background: var(--bg); border-radius: 8px; border-left: 3px solid; }
.output-sol { border-color: var(--accent-gold); }
.output-luna { border-color: var(--accent-emerald); }
.output-error { border-color: #ef4444; color: #ef4444; }
.demo-loading { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px; gap: 14px; }
.loading-dots { display: flex; gap: 6px; }
.loading-dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); animation: ld 1.4s infinite both; }
.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }
@keyframes ld{0%,80%,100%{transform:scale(0.6);opacity:0.4}40%{transform:scale(1);opacity:1}}
.loading-label { font-size: 13px; color: var(--text-3); font-family: var(--font-head); }
.demo-analytics { margin-top: 16px; padding: 16px 20px; background: var(--bg); border-radius: 8px; border: 1px solid var(--border); }
.analytics-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent-emerald); font-family: var(--font-head); margin-bottom: 12px; }
.analytics-grid { display: flex; gap: 32px; }
.analytics-item { text-align: center; }
.analytics-val { font-family: var(--font-head); font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.analytics-key { font-size: 12px; color: var(--text-3); font-family: var(--font-head); }
.site-footer { border-top: 1px solid var(--border); padding: 32px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-brand { display: flex; align-items: center; gap: 8px; }
.footer-name { font-family: var(--font-head); font-weight: 600; font-size: 15px; }
.footer-tagline { font-size: 14px; color: var(--text-3); }

/* Feedback Overlay */
.feedback-overlay { position: fixed; inset: 0; background: rgba(7,7,13,0.85); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; z-index: 200; animation: fadeIn 0.25s ease-out; }
.feedback-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; max-width: 400px; width: 100%; text-align: center; }
.feedback-question { font-family: var(--font-head); font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 20px; }
.feedback-scale { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.feedback-num-btn { width: 44px; height: 44px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border); font-family: var(--font-head); font-size: 14px; font-weight: 700; color: var(--text); cursor: pointer; transition: background 0.15s, border-color 0.15s, opacity 0.15s; }
.feedback-num-btn:hover { border-color: var(--accent-gold); }
.feedback-num-btn.active { background: var(--accent-gold-dim); border-color: var(--accent-gold); color: var(--accent-gold); }
.feedback-num-btn.feedback-dim { opacity: 0.55; }
.feedback-submit-row { display: flex; justify-content: center; margin-top: 16px; }
.feedback-submit { background: var(--accent-emerald); color: #000; font-family: var(--font-head); font-weight: 700; font-size: 14px; padding: 10px 28px; border-radius: 8px; border: none; cursor: pointer; transition: opacity 0.2s; }
.feedback-submit:hover { opacity: 0.8; }
.feedback-submit:disabled { opacity: 0.4; cursor: not-allowed; }
.feedback-dismiss { background: none; border: none; color: var(--text-3); font-family: var(--font-head); font-size: 13px; cursor: pointer; margin-top: 12px; }
.feedback-dismiss:hover { color: var(--text-2); }
.feedback-comment {
  width: 100%; margin-top: 14px; padding: 10px 14px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-family: var(--font-body);
  font-size: 13px; line-height: 1.5; resize: none; outline: none;
  transition: border-color 0.15s;
}
.feedback-comment:focus { border-color: var(--accent-gold); }
.feedback-comment::placeholder { color: var(--text-3); }
@keyframes fadeIn { from { opacity: 0; transform: scale(0.96); } to { opacity: 1; transform: scale(1); } }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-right { order: -1; }
  .persona-cards { grid-template-columns: 1fr; }
  .step-cards { grid-template-columns: 1fr; }
  .manifesto-inner { grid-template-columns: 1fr; gap: 40px; }
  .loop-diagram { flex-direction: column; }
  .loop-arrow { transform: rotate(90deg); padding: 8px 0; }
  .metric-row { flex-direction: column; gap: 20px; }
  .hero-headline { font-size: 38px; }
}
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .hero, .loop-section, .personas-section, .how-section, .manifesto-section, .closing-section { padding: 64px 0; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}