/* ====== Base ====== */
:root{
  --bg: #0b0f1a;
  --text: #0f1220;
  --muted: #5b6275;
  --white: #ffffff;
  --panel: rgba(255,255,255,0.08);
  --panel2: rgba(255,255,255,0.12);
  --line: rgba(255,255,255,0.14);
  --accent: #3d5afe;
  --accent2: #8a7dff;
  --shadow: 0 18px 50px rgba(0,0,0,0.35);
}

*{ box-sizing:border-box; margin:0; padding:0; }
html, body{ height:100%; }
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.6;
}

a{ color: inherit; text-decoration: none; }
code{ background: rgba(0,0,0,0.06); padding: 0.1rem 0.35rem; border-radius: 6px; }

/* ====== Utilities ====== */
.container{ width: min(1100px, 92%); margin: 0 auto; }
.section{ padding: 84px 0; }
.muted{ color: var(--muted); }
.tiny{ font-size: 0.85rem; }
.hidden{ display:none; }

.eyebrow{
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.82rem;
  opacity: 0.9;
  margin-bottom: 10px;
}

/* ====== Nav ====== */
.nav{
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 18px 0;
  z-index: 5;
}
.nav--compact{ padding: 14px 0; }
.nav-inner{
  width: min(1100px, 92%);
  margin: 0 auto;
  display:flex;
  align-items:center;
  justify-content: space-between;
}
.brand{
  font-weight: 700;
  color: rgba(255,255,255,0.92);
}
.nav-links a{
  color: rgba(255,255,255,0.86);
  margin-left: 18px;
  font-weight: 600;
  font-size: 0.95rem;
}
.nav-links a:hover{ color: #fff; text-decoration: underline; text-underline-offset: 5px; }

/* ====== Hero / Launch backgrounds ====== */
.hero, .launch{
  position: relative;
  min-height: 100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  color: #fff;
  background: radial-gradient(1200px 700px at 70% 10%, rgba(61,90,254,0.35), transparent 60%),
              radial-gradient(900px 600px at 20% 20%, rgba(138,125,255,0.22), transparent 55%),
              #050716;
}

.hero-bg, .launch-bg{
  position:absolute; inset:0;
  background: url("assets/cover.jpg") center/cover no-repeat;
  transform: scale(1.02);
  filter: saturate(1.05) contrast(1.05);
  animation: slowZoom 18s ease-in-out infinite alternate;
  opacity: 0.78;
}
.hero-overlay{
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,0.75), rgba(0,0,0,0.55));
  backdrop-filter: blur(3px);
}

@keyframes slowZoom{
  from{ transform: scale(1.02); }
  to{ transform: scale(1.08); }
}

/* ====== Hero content ====== */
.hero-content, .launch-content{
  position: relative;
  z-index: 3;
  width: min(900px, 92%);
  text-align: center;
  padding: 92px 0 40px;
  opacity: 0;
  transform: translateY(14px);
}

.hero-title{
  font-size: clamp(2.4rem, 6vw, 4.1rem);
  letter-spacing: 0.03em;
  line-height: 1.08;
  margin-bottom: 14px;
}
.hero-tagline{
  font-size: 1.15rem;
  color: rgba(230,235,255,0.92);
  margin-bottom: 28px;
}
.hero-note{
  margin-top: 18px;
  color: rgba(255,255,255,0.72);
  font-size: 0.95rem;
}

/* ====== Buttons ====== */
.hero-buttons{
  display:flex;
  gap: 12px;
  justify-content:center;
  flex-wrap: wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius: 10px;
  padding: 0.95rem 1.25rem;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.btn:hover{ transform: translateY(-1px); }
.btn.primary{
  background: linear-gradient(135deg, var(--accent), #2c3eff);
  color: #fff;
}
.btn.primary:hover{
  box-shadow: 0 16px 44px rgba(61,90,254,0.35);
}
.btn.secondary{
  background: rgba(255,255,255,0.10);
  border-color: rgba(255,255,255,0.22);
  color:#fff;
}
.btn.secondary:hover{
  background: rgba(255,255,255,0.14);
}
.btn.ghost{
  background: transparent;
  border-color: rgba(15,18,32,0.18);
  color: rgba(15,18,32,0.86);
  box-shadow: none;
}
.btn.ghost:hover{
  border-color: rgba(15,18,32,0.30);
}

/* ====== Book ====== */
.book{ background: #fff; color: var(--text); }
.book-grid{
  display:grid;
  grid-template-columns: 360px 1fr;
  gap: 42px;
  align-items:center;
}
.book-cover-wrap{
  background: linear-gradient(180deg, rgba(61,90,254,0.10), rgba(138,125,255,0.06));
  border: 1px solid rgba(15,18,32,0.10);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 18px 48px rgba(15,18,32,0.10);
}
.book-cover{
  width:100%;
  border-radius: 14px;
  display:block;
}
.book-copy h2{ font-size: 2rem; margin-bottom: 12px; }
.book-copy p{ margin-bottom: 12px; color: rgba(15,18,32,0.86); }

.pill-row{ display:flex; flex-wrap:wrap; gap:10px; margin-top: 14px; }
.pill{
  display:inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(15,18,32,0.12);
  background: rgba(61,90,254,0.06);
  font-weight: 650;
  font-size: 0.9rem;
  color: rgba(15,18,32,0.82);
}
.book-cta{ margin-top: 18px; display:flex; gap: 12px; flex-wrap: wrap; }

/* ====== Signup ====== */
.signup{
  background: linear-gradient(180deg, #f6f8ff, #ffffff);
  color: var(--text);
}
.signup-inner{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 34px;
  align-items:start;
}
.signup-inner h2{ font-size: 2rem; margin-bottom: 10px; }
.form{ margin-top: 14px; }
.form-row{
  display:flex;
  gap: 10px;
  align-items:center;
  flex-wrap: wrap;
}
.input{
  flex: 1;
  min-width: 220px;
  padding: 0.95rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(15,18,32,0.14);
  outline: none;
  font-weight: 600;
}
.input:focus{
  border-color: rgba(61,90,254,0.55);
  box-shadow: 0 0 0 4px rgba(61,90,254,0.12);
}
.signup-card{
  background: #fff;
  border: 1px solid rgba(15,18,32,0.10);
  border-radius: 16px;
  padding: 18px 18px 16px;
  box-shadow: 0 18px 48px rgba(15,18,32,0.08);
}
.signup-card h3{ margin-bottom: 10px; }
.signup-card ul{ padding-left: 18px; color: rgba(15,18,32,0.80); }
.signup-card li{ margin: 8px 0; }

/* ====== About ====== */
.about{ background: #fff; color: var(--text); }
.about-inner{ text-align:center; }
.about-inner h2{ font-size: 2rem; margin-bottom: 12px; }
.about-inner p{ max-width: 800px; margin: 0 auto; color: rgba(15,18,32,0.86); }
.about-links{ margin-top: 18px; display:flex; justify-content:center; gap: 12px; flex-wrap: wrap; }

/* ====== Countdown ====== */
.countdown{
  display:flex;
  justify-content:center;
  gap: 14px;
  margin: 20px 0 18px;
  flex-wrap: wrap;
}
.count-item{
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 14px;
  padding: 14px 16px 10px;
  min-width: 110px;
  box-shadow: var(--shadow);
}
.count-item span{
  display:block;
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.0;
}
.count-item small{
  display:block;
  margin-top: 6px;
  color: rgba(255,255,255,0.80);
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
}
.launch-card{
  margin-top: 18px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
  text-align: left;
}
.launch-card ul{ padding-left: 18px; margin-top: 10px; }
.launch-card li{ margin: 8px 0; color: rgba(255,255,255,0.88); }

/* ====== Footer ====== */
.footer{
  background: #0b0f1a;
  color: rgba(255,255,255,0.86);
  padding: 26px 0;
}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-links a{
  margin-left: 16px;
  color: rgba(255,255,255,0.86);
}
.footer-links a:hover{ color: #fff; text-decoration: underline; text-underline-offset: 5px; }

/* ====== Motion prefs ====== */
@media (prefers-reduced-motion: reduce){
  .hero-bg, .launch-bg{ animation:none; }
  .btn{ transition:none; }
}

/* ====== Responsive ====== */
@media (max-width: 900px){
  .book-grid{ grid-template-columns: 1fr; }
  .signup-inner{ grid-template-columns: 1fr; }
}