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

:root {
  --black: #0a0a0f;
  --surface: #0d1520;
  --border: #1e2a3a;
  --blue: #3b9eff;
  --blue-dim: #1a4a7a;
  --blue-bg: #0d1a2a;
  --blue-border: #1a3a5a;
  --white: #ffffff;
  --muted: #5a6a80;
  --muted2: #2a3a4a;
  --font: 'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

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

/* NAV */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  border-bottom: 0.5px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(10,10,15,0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-text { font-size: 18px; font-weight: 600; letter-spacing: 0.1em; color: var(--white); }
.nav-logo-text span { color: var(--blue); }
.nav-right { display: flex; align-items: center; gap: 32px; }
.nav-links { display: flex; gap: 28px; }
.nav-link { font-size: 13px; color: var(--muted); text-decoration: none; letter-spacing: 0.03em; transition: color 0.2s; }
.nav-link:hover { color: var(--white); }
.lang-toggle { display: flex; border: 0.5px solid var(--border); border-radius: 8px; overflow: hidden; }
.lang-btn { font-size: 12px; padding: 5px 13px; color: var(--muted); cursor: pointer; background: transparent; border: none; font-family: var(--font); letter-spacing: 0.06em; transition: all 0.2s; }
.lang-btn.active { background: var(--border); color: var(--white); }
.lang-btn:hover:not(.active) { color: var(--white); }

/* HERO */
.hero { padding: 90px 48px 72px; border-bottom: 0.5px solid var(--border); }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--blue);
  border: 0.5px solid var(--blue-border);
  background: var(--blue-bg);
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 32px;
  text-transform: uppercase;
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 { font-size: 48px; font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 20px; max-width: 700px; }
.hero h1 span { color: var(--blue); }
.hero-sub { font-size: 17px; color: #8a9aaa; max-width: 560px; line-height: 1.75; font-weight: 300; margin-bottom: 32px; }

/* STATS */
.stats-bar { display: flex; justify-content: center; gap: 64px; padding: 36px 48px; border-bottom: 0.5px solid var(--border); }
.stat { text-align: center; }
.stat-num { font-size: 26px; font-weight: 600; color: var(--white); letter-spacing: -0.01em; }
.stat-num span { color: var(--blue); }
.stat-label { font-size: 12px; color: var(--muted); margin-top: 2px; letter-spacing: 0.04em; }

/* SECTIONS */
.section { padding: 72px 48px; border-bottom: 0.5px solid var(--border); }
.section-label { font-size: 11px; letter-spacing: 0.16em; color: var(--blue); margin-bottom: 14px; text-transform: uppercase; }
.section h2 { font-size: 30px; font-weight: 600; color: var(--white); margin-bottom: 10px; letter-spacing: -0.01em; }
.section-sub { font-size: 15px; color: #8a9aaa; margin-bottom: 40px; line-height: 1.7; max-width: 560px; font-weight: 300; }

/* PROBLEM */
.problem-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.problem-card {
  background: var(--surface);
  border: 0.5px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  align-items: stretch;
  gap: 16px;
  transition: border-color 0.2s;
}
.problem-card:hover { border-color: var(--blue-dim); }
.problem-situation, .problem-consequence { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.situation-label { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.consequence-label { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: #e05252; font-weight: 600; }
.problem-situation p { font-size: 13px; color: #8a9aaa; line-height: 1.6; }
.problem-consequence p { font-size: 13px; color: #d07a74; line-height: 1.6; }
.problem-arrow { font-size: 18px; color: var(--blue-dim); align-self: center; flex-shrink: 0; }

/* SOLUTION */
.solution-questions { display: flex; flex-direction: column; margin-bottom: 40px; border: 0.5px solid var(--border); border-radius: 12px; overflow: hidden; }
.solution-q { display: flex; gap: 28px; align-items: flex-start; padding: 28px; border-bottom: 0.5px solid var(--border); transition: background 0.2s; }
.solution-q:last-child { border-bottom: none; }
.solution-q:hover { background: rgba(59,158,255,0.03); }
.q-number { font-size: 11px; letter-spacing: 0.12em; color: var(--blue); font-weight: 600; flex-shrink: 0; width: 24px; padding-top: 3px; }
.q-content h3 { font-size: 15px; font-weight: 500; color: var(--white); margin-bottom: 6px; }
.q-content p { font-size: 13px; color: #8a9aaa; line-height: 1.65; }

/* ROADMAP */
.roadmap { display: flex; flex-direction: column; }
.roadmap-item { display: flex; gap: 24px; }
.roadmap-marker { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; }
.roadmap-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--muted2); border: 1.5px solid var(--border); flex-shrink: 0; z-index: 1; }
.roadmap-dot.done { background: var(--blue-dim); border-color: var(--blue); }
.roadmap-dot.next { background: transparent; border: 2px dashed var(--blue); box-shadow: 0 0 8px rgba(59,158,255,0.3); }
.roadmap-line { width: 1px; flex: 1; background: var(--border); min-height: 32px; margin: 4px 0; }
.roadmap-content { padding-bottom: 36px; flex: 1; }
.roadmap-item.last .roadmap-content { padding-bottom: 0; }
.roadmap-phase { font-size: 11px; letter-spacing: 0.1em; color: var(--blue); text-transform: uppercase; margin-bottom: 6px; }
.roadmap-content h3 { font-size: 16px; font-weight: 500; color: var(--white); margin-bottom: 8px; }
.roadmap-content p { font-size: 13px; color: #8a9aaa; line-height: 1.7; margin-bottom: 12px; }
.roadmap-tag { display: inline-block; font-size: 11px; color: var(--muted); border: 0.5px solid var(--border); border-radius: 20px; padding: 3px 10px; letter-spacing: 0.06em; }
.roadmap-tag.done-tag { color: #4caf70; border-color: #1e4a2e; background: #0a1e12; }
.roadmap-tag.next-tag { color: var(--blue); border-color: var(--blue-border); border-style: dashed; background: var(--blue-bg); }

/* FOUNDER */
.founder-layout { display: grid; grid-template-columns: 200px 1fr; gap: 48px; align-items: start; }
.founder-left { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.founder-name { font-size: 18px; font-weight: 600; color: var(--white); }
.founder-role { font-size: 13px; color: #8a9aaa; }
.founder-right blockquote { font-size: 16px; color: #a0afc0; line-height: 1.8; font-weight: 300; font-style: italic; border-left: 2px solid var(--blue-dim); padding-left: 24px; }

/* ROLE CARDS */
.role-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 28px; }
.role-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--black);
  border: 0.5px solid var(--border);
  border-radius: 12px;
  padding: 22px 20px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.role-card input[type="radio"] { display: none; }
.role-card:hover { border-color: var(--blue-dim); }
.role-card.selected { border-color: var(--blue); background: var(--blue-bg); }
.role-card-icon { color: var(--muted); flex-shrink: 0; padding-top: 2px; transition: color 0.2s; }
.role-card.selected .role-card-icon { color: var(--blue); }
.role-card h3 { font-size: 14px; font-weight: 500; color: var(--white); margin-bottom: 5px; }
.role-card p { font-size: 13px; color: var(--muted); line-height: 1.55; }

/* FORM */
.cta-section { border-bottom: none; }
.cta-inner { background: var(--surface); border: 0.5px solid var(--border); border-radius: 16px; padding: 52px 48px; }
.signup-form { }
.form-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.form-fields .form-input:nth-child(3) { grid-column: 1; }
.form-fields .form-btn { grid-column: 2; grid-row: 2; }
.form-input {
  background: var(--black);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  padding: 13px 16px;
  font-size: 14px;
  color: var(--white);
  font-family: var(--font);
  transition: border-color 0.2s;
  outline: none;
  width: 100%;
}
.form-input:focus { border-color: var(--blue); }
.form-input::placeholder { color: var(--muted); }
.btn-primary { background: var(--blue); color: var(--white); border: none; padding: 13px 28px; border-radius: 8px; font-size: 14px; font-weight: 500; cursor: pointer; font-family: var(--font); letter-spacing: 0.02em; transition: opacity 0.2s, transform 0.1s; white-space: nowrap; width: 100%; }
.btn-primary:hover { opacity: 0.88; }
.btn-primary:active { transform: scale(0.98); }
.form-btn { flex-shrink: 0; }
.form-note { font-size: 12px; color: #8a9aaa; margin-top: 4px; }
.or-divider { text-align: center; margin: 24px 0 10px; position: relative; color: var(--muted); font-size: 12px; }
.or-divider::before, .or-divider::after { content: ''; position: absolute; top: 50%; width: 40%; height: 0.5px; background: var(--border); }
.or-divider::before { left: 0; }
.or-divider::after { right: 0; }
.contact-link { display: block; text-align: center; font-size: 14px; color: var(--blue); text-decoration: none; letter-spacing: 0.01em; }
.contact-link:hover { text-decoration: underline; }

/* FOOTER */
footer { padding: 28px 48px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; border-top: 0.5px solid var(--border); }
.footer-logo { display: flex; align-items: center; gap: 8px; }
.footer-logo-text { font-size: 14px; font-weight: 600; letter-spacing: 0.08em; color: var(--muted2); }
.footer-logo-text span { color: #1a3a5a; }
.footer-copy { font-size: 12px; color: var(--muted2); }
.footer-links { display: flex; gap: 20px; }
.footer-link { font-size: 12px; color: var(--muted2); text-decoration: none; transition: color 0.2s; }
.footer-link:hover { color: var(--muted); }

/* RESPONSIVE */
@media (max-width: 768px) {
  nav { padding: 14px 20px; }
  .nav-links { display: none; }
  .hero { padding: 56px 20px 40px; }
  .hero h1 { font-size: 32px; }
  .stats-bar { gap: 24px; padding: 28px 20px; flex-wrap: wrap; }
  .section { padding: 48px 20px; }
  .problem-grid { grid-template-columns: 1fr; }
  .problem-card { flex-direction: column; }
  .problem-arrow { align-self: flex-start; transform: rotate(90deg); }
  .founder-layout { grid-template-columns: 1fr; }
  .role-cards { grid-template-columns: 1fr; }
  .form-fields { grid-template-columns: 1fr; }
  .form-fields .form-input:nth-child(3) { grid-column: 1; }
  .form-fields .form-btn { grid-column: 1; grid-row: auto; }
  .cta-inner { padding: 32px 20px; }
  footer { padding: 24px 20px; flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  .badge-dot { animation: none; }
  * { transition: none !important; }
}