body {
  margin: 0;
  min-height: 100vh;
  background-image:
    linear-gradient(rgba(4, 12, 33, 0.50), rgba(5, 13, 29, 0.50)),
    url("../images/forest_no_text.png");
  background-color: #050d1d;
  background-size: cover;
  background-position: center;
  color: #f4f4f2;
  font-family: Georgia, "Times New Roman", serif;
}

.header {
  padding: 18px 24px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(3, 8, 22, 0.22);
  border-bottom: 1px solid rgba(221, 235, 255, 0.10);
  -webkit-backdrop-filter: blur(18px) saturate(1.1);
  backdrop-filter: blur(18px) saturate(1.1);
}

.header h1 {
  flex: 0 0 auto;
  margin: 0;
  text-align: center;
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  letter-spacing: 0.02em;
}

.header-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.header-subtitle {
  margin: 0;
  font-size: clamp(0.7rem, 0.9vw, 0.8rem);
  color: rgba(241, 245, 251, 0.55);
  font-style: italic;
  letter-spacing: 0.04em;
}

.topnav {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  background-color: rgba(6, 14, 41, 0.96);
  overflow: hidden;
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(210, 227, 255, 0.12);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.topnav a {
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #bfdde8;
  color: #081226;
}

.topnav a.active {
  background-color: #0b7a75;
  color: #ffffff;
}

.main-container,
.analysis-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 36px auto 48px;
}

.main-container {
  background-color: rgba(10, 20, 60, 0.75);
  border-radius: 16px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.section-card,
.hero-card,
.control-panel,
.viz-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.06));
  border: 1px solid rgba(221, 235, 255, 0.14);
  border-radius: 22px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
}

.section-card {
  padding: 30px;
  color: white;
  text-align: center;
}

.section {
  padding: 40px 60px;
  color: white;
}

.hero-card {
  padding: 30px 32px;
  position: relative;
  overflow: hidden;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: auto -40px -50px auto;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(159, 219, 212, 0.28), transparent 68%);
  pointer-events: none;
}

.hero-card h2,
.viz-card h3 {
  margin: 0;
}

.hero-copy,
.viz-note {
  color: #d6deea;
  line-height: 1.55;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  color: #9fdbd4;
}

.control-panel {
  margin-top: 18px;
  padding: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.95rem;
  min-width: 0;
}

.control-group span {
  color: #d6deea;
}

.control-group select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(216, 232, 255, 0.18);
  background: rgba(7, 16, 42, 0.82);
  color: #f4f4f2;
  font-size: 0.98rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.control-group input {
  width: 100%;
  box-sizing: border-box;
}

.viz-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.viz-card {
  padding: 22px;
  transition: transform 160ms ease, border-color 160ms ease;
}

.viz-card:hover {
  transform: translateY(-2px);
  border-color: rgba(159, 219, 212, 0.28);
}

.viz-card-wide {
  grid-column: 1 / -1;
}

.word-cloud {
  min-height: 180px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 18px;
  padding: 16px;
  border-radius: 18px;
  background:
    radial-gradient(circle at top, rgba(159, 219, 212, 0.18), transparent 42%),
    rgba(7, 16, 42, 0.54);
}

.cloud-word {
  display: inline-block;
  line-height: 1;
  color: #f8f4e8;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.28);
  padding: 2px 4px;
}

.season-breakdown {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.season-card {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(7, 16, 42, 0.58);
  border: 1px solid rgba(216, 232, 255, 0.1);
}

.season-card h4 {
  margin: 0 0 8px;
}

.season-card p {
  margin: 0;
  color: #d6deea;
  line-height: 1.45;
}

.empty-state {
  padding: 24px;
  text-align: center;
  color: #d6deea;
}

.simple-list ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.simple-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(226, 234, 248, 0.12);
  color: #f1f5fb;
  font-weight: 500;
}

.simple-list li:last-child {
  border-bottom: 0;
}

.simple-list strong {
  min-width: 28px;
  text-align: right;
  color: #9fdbd4;
}

@media (max-width: 920px) {
  .control-panel,
  .viz-grid,
  .season-breakdown {
    grid-template-columns: 1fr;
  }

  .topnav {
    justify-content: flex-start;
  }

  .main-container,
  .analysis-shell {
    width: min(100%, calc(100% - 20px));
    margin-top: 20px;
  }
}

    /* Tooltip */
    #tooltip {
        position: absolute;
        display: none;
        background: rgba(4, 25, 67, 0.93);
        box-shadow: 3px 3px 3px 0px rgb(92 92 92 / 0.5);
        border: 1px solid rgba(210, 227, 255, 0.2);
        border-radius: 5px;
        font-size: 15px;
        font-weight: 500;
        /* opacity: 0;
        transition: opacity 0.15s; */
        padding: 10px;
        color: rgb(244, 244, 242);
        z-index: 1001;
    }

    .tooltip-title {
        color: #fff;
        font-size: 16px;
        font-weight: 600;
        padding-bottom: 10px
    }

    #tooltip ul {
        margin: 5px 0 0 0;
        padding-left: 20px;
    }