/* ── Design tokens ─────────────────────────────────────────────────────────── */
:root {
  --bg:           #f3efe6;
  --panel:        #fffaf2;
  --ink:          #1f2a1f;
  --muted:        #5b6658;
  --line:         #d9cfbf;
  --accent:       #3a6b49;
  --accent-soft:  #dfeadf;
  --orange:       #d07a28;
  --shadow:       0 18px 45px rgba(63, 57, 42, 0.12);
  --font-sans:    "Inter", system-ui, sans-serif;
  --font-serif: "Space Grotesk", sans-serif;
  --font-mono:    "JetBrains Mono", "Fira Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(97, 146, 103, 0.18), transparent 26%),
    linear-gradient(180deg, #f7f2e8 0%, var(--bg) 55%, #efe7db 100%);
}

.page-shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 40px 0 64px;
}

.hero,
.controls-card,
.chart-card {
  background: var(--panel);
  border: 1px solid rgba(124, 109, 84, 0.14);
  border-radius: 24px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.hero    { padding: 32px; }

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-sans);
}

h1, h2 {
  margin: 0;
  line-height: 1.1;
  font-family: var(--font-serif);
}

h1 {
  max-width: 900px;
  font-size: clamp(2rem, 4vw, 3.6rem);
}

h2 { font-size: clamp(1.4rem, 2vw, 1.9rem); }

.team, .intro, .controls-card p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--muted);
  font-family: var(--font-sans);
}


.team  { margin: 18px 0 10px; }
.intro { max-width: 840px; margin: 0; }

.controls-card {
  margin-top: 24px;
  padding: 24px 28px;
  display: flex;
  gap: 24px;
  align-items: end;
  justify-content: space-between;
}

.controls-card p { max-width: 700px; margin: 10px 0 0; }

.filter {
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--muted);
}

.filter select {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  color: var(--ink);
  font: inherit;
}

.chart-card {
  margin-top: 24px;
  padding: 18px 18px 8px;
  position: relative;
}

#chart { width: 100%; }

.axis text, .axis-label, .legend text {
  fill: var(--muted);
  font-family: var(--font-sans);
  font-size: 11px;
}

.axis path, .axis line { stroke: #b9b09f; }

.dot {
  stroke: rgba(31, 42, 31, 0.35);
  stroke-width: 1;
  transition: opacity 120ms ease;
}

.tooltip {
  position: absolute;
  pointer-events: none;
  max-width: 260px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(28, 37, 30, 0.96);
  color: #f8f5ee;
  box-shadow: 0 14px 30px rgba(16, 21, 17, 0.28);
  font-size: 0.88rem;
  line-height: 1.5;
  font-family: var(--font-sans);
}

.tooltip strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-sans);
  font-weight: 600;
}

/* Typewriter cursor animation */
.typewriter {
  display: inline-block;
  width: fit-content;
  border-right: 2px solid var(--accent);
  animation: blink 0.75s step-end infinite;
  font-family: var(--font-serif);
}

@keyframes blink {
  0%, 100% { border-color: var(--accent); }
  50%       { border-color: transparent; }
}

/* Writeup */
.writeup-card {
  max-width: 860px;
  margin: 2rem auto;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.writeup-block h2 { margin-bottom: 0.5rem; font-family: var(--font-serif); }
.writeup-block p  { line-height: 1.75; font-family: var(--font-sans); color: var(--muted); }

@media (max-width: 800px) {
  .page-shell { width: min(100vw - 20px, 1120px); padding-top: 20px; }
  .hero, .controls-card, .chart-card { border-radius: 18px; }
  .hero, .controls-card { padding: 20px; }
  .controls-card { flex-direction: column; align-items: stretch; }
}


.headline-sign h1 {
  opacity: 0;
  transform: translateX(-60px);
  animation: driveIn 1s ease-out 0.3s forwards;
}

@keyframes driveIn {
  from {
    opacity: 0;
    transform: translateX(-60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}