@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600&family=Source+Serif+4:wght@400;600&display=swap");

:root {
  --ink: #1e2a32;
  --muted: #586671;
  --paper: #fff8ee;
  --panel: #ffffff;
  --accent: #c16b2b;
  --accent-2: #2a7f8e;
  --ring: rgba(42, 127, 142, 0.25);
  --shadow: 0 18px 45px rgba(30, 42, 50, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Source Serif 4", "Georgia", serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 15%, rgba(193, 107, 43, 0.12), transparent 55%),
    radial-gradient(circle at 85% 10%, rgba(42, 127, 142, 0.10), transparent 50%),
    linear-gradient(140deg, #f4efe6 0%, #e6f2f2 100%);
  min-height: 100vh;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  background: var(--paper);
  border-radius: 22px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(30, 42, 50, 0.06);
}

.hero-text h1 {
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 32px;
  margin: 8px 0 6px;
}

.hero-text p {
  margin: 0;
  color: var(--muted);
  max-width: 540px;
}

.hero-chip {
  padding: 16px 18px;
  border-radius: 16px;
  border: none;
  background: transparent;
  text-align: center;
  min-width: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-logo {
  max-width: 270px;
  width: 100%;
  height: auto;
  display: block;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 24px;
}

.panel {
  background: var(--panel);
  border-radius: 18px;
  padding: 22px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(30, 42, 50, 0.08);
}

.panel h2 {
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 20px;
  margin: 0 0 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.field span {
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.field input[type="text"],
.field input[type="number"],
.field textarea {
  border-radius: 12px;
  border: 1px solid rgba(30, 42, 50, 0.15);
  padding: 10px 12px;
  font-size: 15px;
  font-family: "Space Grotesk", "Arial", sans-serif;
  outline: none;
  background: #fffdf9;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field textarea {
  font-family: "SFMono-Regular", "Menlo", "Consolas", monospace;
  line-height: 1.4;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 4px var(--ring);
}

.field small {
  color: var(--muted);
  font-size: 12px;
}

.tab-spacer {
  margin-top: 16px;
}

.nav-tabs .nav-link {
  font-family: "Space Grotesk", "Arial", sans-serif;
  color: var(--muted);
}

.nav-tabs {
  margin-top: 12px;
}

.nav-tabs .nav-link.active {
  color: var(--ink);
}

.radio-row {
  display: flex;
  gap: 16px;
  font-family: "Space Grotesk", "Arial", sans-serif;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.check {
  flex-direction: row;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
}

.check input {
  width: 18px;
  height: 18px;
}

.primary-action {
  width: 100%;
  padding: 12px 18px;
  border-radius: 12px;
  border: none;
  background: #78102b;
  color: #fff;
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 16px;
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(120, 16, 43, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.primary-action:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 26px rgba(120, 16, 43, 0.32);
}


.output {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.preview-frame {
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 14px;
  border: 1px solid rgba(30, 42, 50, 0.15);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.plot {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  color: var(--muted);
}

.placeholder.tight {
  padding: 24px 20px;
}

.preview-frame.placeholder {
  border: 1px dashed rgba(30, 42, 50, 0.2);
  background: rgba(30, 42, 50, 0.03);
}

.placeholder-title {
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 18px;
  margin-bottom: 8px;
}

.error {
  background: rgba(193, 43, 43, 0.08);
  border: 1px solid rgba(193, 43, 43, 0.3);
  color: #902525;
  padding: 12px 14px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid rgba(42, 127, 142, 0.3);
  background: rgba(42, 127, 142, 0.08);
  color: var(--ink);
  font-family: "Space Grotesk", "Arial", sans-serif;
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.download:hover {
  border-color: var(--accent-2);
  box-shadow: 0 10px 20px rgba(42, 127, 142, 0.18);
}

.tab-output {
  margin-top: 18px;
}

.tab-output h3 {
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 18px;
  margin: 12px 0;
}

.tab-card {
  border: 1px solid rgba(30, 42, 50, 0.1);
  border-radius: 16px;
  padding: 18px;
  background: #fffaf2;
}

.jt-results {
  margin-top: 20px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid rgba(30, 42, 50, 0.1);
  background: #fffaf2;
}

.jt-disclaimer {
  background: rgba(42, 127, 142, 0.08);
  border: 1px solid rgba(42, 127, 142, 0.25);
  color: var(--ink);
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 13px;
  margin-bottom: 12px;
}

.jt-warning {
  background: rgba(193, 43, 43, 0.08);
  border: 1px solid rgba(193, 43, 43, 0.3);
  color: #902525;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 13px;
  margin-bottom: 12px;
}

.jt-warning ul,
.jt-assumptions ul {
  margin: 6px 0 0;
  padding-left: 18px;
}

.jt-assumptions {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}

.jt-results h3 {
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 18px;
  margin: 0 0 12px;
}

.jt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 18px;
  margin-bottom: 16px;
}

.jt-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.jt-value {
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 16px;
  margin-top: 4px;
}

.jt-comps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.jt-comp h4 {
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 14px;
  margin: 0 0 6px;
}

.jt-comp ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-family: "SFMono-Regular", "Menlo", "Consolas", monospace;
  font-size: 13px;
}

.jt-comp li {
  padding: 2px 0;
}

@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .split {
    grid-template-columns: 1fr;
  }

  .jt-grid,
  .jt-comps {
    grid-template-columns: 1fr;
  }
}