:root {
  --line: rgba(120, 255, 172, 0.16);
  --text: #e7ffef;
  --muted: #9bc5aa;
  --accent: #68ffb0;
  --accent-strong: #1fd071;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, rgba(77, 255, 163, 0.14), transparent 30%),
    radial-gradient(circle at bottom right, rgba(43, 149, 89, 0.2), transparent 24%),
    linear-gradient(180deg, #061008, #08150d 56%, #050b07);
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
}

.backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(104, 255, 176, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(104, 255, 176, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 100%);
}

.layout {
  position: relative;
  z-index: 1;
  width: min(1400px, calc(100vw - 32px));
  margin: 24px auto 48px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(16, 35, 24, 0.9), rgba(9, 22, 15, 0.84));
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 24px;
  padding: 32px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.74rem;
  font-family: "IBM Plex Mono", monospace;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2.8rem, 6vw, 5.3rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.lede {
  max-width: 58ch;
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.hero-stats {
  display: grid;
  gap: 14px;
}

.hero-stats article {
  padding: 18px 20px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(14, 39, 25, 0.96), rgba(7, 21, 13, 0.92));
  border: 1px solid rgba(104, 255, 176, 0.13);
}

.hero-stats span,
.status,
.detail-meta,
.legend,
label span {
  color: var(--muted);
}

.hero-stats strong {
  display: block;
  margin-top: 6px;
  font-size: 2rem;
}

.controls {
  margin-top: 20px;
  padding: 22px 24px;
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: end;
}

.control-row + .control-row {
  margin-top: 16px;
}

label {
  display: grid;
  gap: 8px;
  min-width: 200px;
  flex: 1 1 200px;
}

input[type="search"],
select,
input[type="range"] {
  width: 100%;
}

input[type="search"],
select {
  border: 1px solid rgba(104, 255, 176, 0.2);
  background: rgba(2, 10, 6, 0.6);
  color: var(--text);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
}

input[type="range"] {
  accent-color: var(--accent);
}

button,
.file-button span {
  border: 0;
  border-radius: 999px;
  padding: 13px 18px;
  font: 500 0.95rem "IBM Plex Mono", monospace;
  cursor: pointer;
  color: #031108;
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  box-shadow: 0 18px 40px rgba(31, 208, 113, 0.24);
}

button.ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: none;
  border: 1px solid rgba(104, 255, 176, 0.18);
}

.file-button {
  min-width: unset;
  flex: 0 0 auto;
}

.file-button input {
  display: none;
}

.status {
  margin-top: 14px;
  min-height: 1.4em;
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) 360px;
  gap: 20px;
  margin-top: 20px;
}

.graph-card,
.details {
  position: relative;
  overflow: hidden;
}

.graph-card {
  min-height: 760px;
  padding: 22px;
}

.graph-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.9rem;
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 999px;
}

.dot.bright {
  background: var(--accent);
  box-shadow: 0 0 12px rgba(104, 255, 176, 0.9);
}

.dot.muted {
  background: #49745b;
}

.graph {
  height: 660px;
  margin-top: 16px;
  border-radius: 22px;
  background:
    radial-gradient(circle at top, rgba(104, 255, 176, 0.08), transparent 42%),
    rgba(4, 13, 8, 0.9);
  border: 1px solid rgba(104, 255, 176, 0.08);
}

.empty-state {
  position: absolute;
  inset: 110px 22px 22px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  border-radius: 24px;
  background: rgba(3, 11, 7, 0.88);
  border: 1px dashed rgba(104, 255, 176, 0.15);
}

.hidden {
  display: none !important;
}

.details {
  padding: 24px;
}

.detail-body {
  margin-top: 14px;
  display: grid;
  gap: 14px;
}

.profile-header {
  display: flex;
  gap: 14px;
  align-items: center;
}

.profile-avatar {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  object-fit: cover;
  border: 1px solid rgba(104, 255, 176, 0.25);
  box-shadow: 0 0 24px rgba(104, 255, 176, 0.18);
  background: rgba(255, 255, 255, 0.04);
}

.profile-handle {
  display: block;
  margin-top: 4px;
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.stat-grid article {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(104, 255, 176, 0.08);
}

.stat-grid strong {
  display: block;
  margin-top: 4px;
  font-size: 1.05rem;
}

.detail-meta {
  font-size: 0.92rem;
  line-height: 1.6;
}

@media (max-width: 1100px) {
  .hero,
  .main-grid {
    grid-template-columns: 1fr;
  }

  .graph-card {
    min-height: 620px;
  }

  .graph {
    height: 520px;
  }
}

@media (max-width: 720px) {
  .layout {
    width: min(100vw - 20px, 100%);
    margin-top: 10px;
  }

  .hero,
  .controls,
  .graph-card,
  .details {
    padding: 18px;
    border-radius: 22px;
  }

  h1 {
    font-size: 2.7rem;
  }

  .graph {
    height: 460px;
  }
}