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

body {
  min-height: 100vh;
  font-family: system-ui, Arial, sans-serif;
  color: #fff;
  background: #000 url('../star2.jpeg') center/cover fixed no-repeat;
  overflow-x: hidden;
}

a {
  color: #7ec8ff;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  width: 90%;
  margin: 0 auto;
  padding: 16px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(0,0,20,.6);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255,255,255,.1);
  padding: 8px 0;
}

.header .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: .3px;
  font-size: 1.2rem;
}

.title .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(120deg,#6aa7ff,#a88bff);
  box-shadow: 0 0 16px #6aa7ff;
}

.modes {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(20,30,60,.6);
  color: #eaf0ff;
  cursor: pointer;
  font-weight: 600;
  transition: background .3s ease;
}

.btn:hover {
  background: rgba(30,50,90,.7);
}

.btn.primary {
  background: linear-gradient(120deg,#6aa7ff,#a88bff);
  border: none;
  color: #061228;
}

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 24px;
  align-items: center;
  padding: 28px 0;
}

.card {
  background: linear-gradient(180deg,rgba(16,23,54,.8),rgba(10,16,40,.7));
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  padding: 18px;
}

.card h1 {
  font-size: 28px;
  line-height: 1.2;
  margin-bottom: 8px;
}

.sun {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle,#fff6b5,#ff8a00);
  box-shadow: 0 0 60px 30px rgba(255,180,0,.45),
              inset 0 0 30px rgba(255,255,255,.3);
  animation: spin 20s linear infinite;
}

.planet-img {
  filter: drop-shadow(0 0 10px rgba(255,255,255,.25));
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Journey Mode */
#journey {
  position: relative;
  height: 680px;
  margin-top: 12px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  overflow: hidden;
}

.stars, .stars2, .stars3 {
  position: absolute;
  inset:-50% -50% -50% -50%;
  background:url('../star2.jpeg') center/cover no-repeat;
  opacity:.25;
  filter:blur(1px);
  animation: float 80s linear infinite;
}

.stars2 {
  opacity:.18;
  animation-duration: 120s;
  transform: scale(1.2);
}

.stars3 {
  opacity:.12;
  animation-duration: 160s;
  transform: scale(1.4);
}

@keyframes float {
  to { transform: translate3d(-10%,-10%,0) scale(1); }
}

/* Path & Planets */
.path {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  width: 80%;
  height: 45%;
  border: 1px dashed rgba(255,255,255,.18);
  border-radius: 50%;
}

.sun-wrap {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
}

.planet-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  transform: translate(-50%,-50%);
}

.planet-node .name {
  font-size: 12px;
  opacity:.8;
}

.ship {
  position: absolute;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(106,167,255,.2);
  border: 1px solid rgba(106,167,255,.4);
}

.ship span {
  font-size: 22px;
}

.ship-glow {
  position: absolute;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  box-shadow: 0 0 40px 20px rgba(120,170,255,.18);
  pointer-events: none;
}

.toolbar {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: flex;
  gap: 8px;
  z-index: 5;
}

.info-bubble {
  position: absolute;
  min-width: 220px;
  max-width: 280px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(0,0,0,.75);
  border: 1px solid rgba(255,255,255,.18);
  transform: translate(-50%,-120%);
  display: none;
}

.info-bubble h3 {
  margin-bottom: 6px;
  color:#ffd27a;
}

/* Scroll Story */
#story {
  margin: 40px 0 10px;
}

.section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: center;
  margin: 24px 0;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.12);
  background: linear-gradient(180deg,rgba(16,23,54,.65),rgba(10,16,40,.55));
  opacity: 0;
  transform: translateY(12px) scale(.98);
  transition: .6s ease;
}

.section.show {
  opacity:1;
  transform:none;
}

.section img {
  max-width: 140px;
  margin: auto;
}

/* Music Visualizer */
#visualizer {
  margin: 30px 0;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.12);
  background: linear-gradient(180deg,rgba(16,23,54,.65),rgba(10,16,40,.55));
}

.v-top {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

#vizCanvas {
  width: 100%;
  height: 180px;
  background: rgba(0,0,0,.35);
  border-radius: 12px;
}

.v-planets {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 12px;
}

.v-item {
  display: grid;
  place-items: center;
  gap: 6px;
}

.v-item img {
  transition: transform .12s linear;
  filter: drop-shadow(0 0 8px rgba(255,255,255,.2));
}

/* Planet Positions */
[data-angle="0"]{ left:50%; top:10%; }
[data-angle="30"]{ left:74%; top:16%; }
[data-angle="60"]{ left:89%; top:35%; }
[data-angle="90"]{ left:95%; top:50%; }
[data-angle="120"]{ left:89%; top:65%; }
[data-angle="150"]{ left:74%; top:84%; }
[data-angle="180"]{ left:50%; top:90%; }
[data-angle="210"]{ left:26%; top:84%; }
[data-angle="240"]{ left:11%; top:65%; }
[data-angle="270"]{ left:5%; top:50%; }
[data-angle="300"]{ left:11%; top:35%; }
[data-angle="330"]{ left:26%; top:16%; }

/* Responsive */
@media (max-width: 1200px) {
  .container { width: 95%; }
}

@media (max-width: 992px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero h1 { font-size: 1.8rem; }
  .sun { width: 120px; height: 120px; margin: auto; }
  .section img { max-width: 120px; }
  .path { width: 70%; height: 35%; }
  #vizCanvas { height: 150px; }
}

@media (max-width: 768px) {
  #journey { height: 450px; }
  .ship { width: 30px; height: 30px; }
  .ship span { font-size: 18px; }
  .path { width: 60%; height: 30%; }
}