:root {
  --bg: #f5f8fa;
  --panel: #ffffff;
  --panel-strong: #f8fbfc;
  --ink: #12343f;
  --muted: #526a73;
  --accent: #0f5b78;
  --accent-dark: #0b4258;
  --line: rgba(18, 52, 63, 0.14);
  --success: #157347;
  --error: #b42318;
  --info: #0f5b78;
  --shadow: 0 16px 34px rgba(18, 52, 63, 0.09);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Outfit", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.page-shell {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.hero-card,
.mapping-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-card {
  display: grid;
  grid-template-columns: 1.2fr 0.95fr;
  gap: 24px;
  padding: 28px;
  align-items: stretch;
}

.hero-copy h1 {
  margin: 10px 0 16px;
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.04;
  letter-spacing: 0;
  max-width: 14ch;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
}

.lead {
  max-width: 58ch;
  font-size: 1.08rem;
  line-height: 1.65;
  color: var(--muted);
}

.upload-card {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.upload-zone {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 190px;
  border: 2px dashed rgba(15, 91, 120, 0.35);
  border-radius: 8px;
  background: #fff;
  text-align: center;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.upload-zone:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 91, 120, 0.6);
  box-shadow: 0 12px 24px rgba(15, 91, 120, 0.12);
}

.upload-zone input {
  display: none;
}

.upload-title {
  font-size: 1.15rem;
  font-weight: 600;
}

.upload-subtitle {
  margin-top: 8px;
  color: var(--muted);
}

.controls {
  margin-top: 18px;
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.95rem;
  font-weight: 500;
}

.field input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 15px 18px;
  font: inherit;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, opacity 180ms ease;
  box-shadow: 0 12px 22px rgba(15, 91, 120, 0.18);
}

button:hover {
  transform: translateY(-2px);
}

button:disabled {
  cursor: wait;
  opacity: 0.75;
  transform: none;
}

.status {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 0.96rem;
  line-height: 1.5;
}

.status.info {
  color: var(--info);
  background: rgba(36, 92, 158, 0.08);
}

.status.success {
  color: var(--success);
  background: rgba(27, 127, 74, 0.1);
}

.status.error {
  color: var(--error);
  background: rgba(180, 35, 24, 0.1);
}

.mapping-card {
  margin-top: 24px;
  padding: 28px;
}

.zones-card {
  margin-top: 24px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.zones-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.zones-header h2 {
  margin: 4px 0 0;
}

.zones-header button {
  width: auto;
  min-width: 170px;
}

.zones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.zone-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 12px;
  box-shadow: 0 1px 3px rgba(18, 52, 63, 0.07);
}

.zone-card.downloaded {
  border-color: rgba(21, 115, 71, 0.5);
}

.zone-card h3 {
  margin: 0 0 4px;
  color: var(--accent-dark);
  font-size: 1rem;
}

.zone-card p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.86rem;
}

.zone-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 10px;
}

.zone-tags span {
  padding: 2px 5px;
  border-radius: 4px;
  border: 1px solid #b8cef0;
  background: #e8f0fb;
  color: #2c5282;
  font-size: 0.66rem;
  font-weight: 700;
}

.zone-card button {
  width: 100%;
  padding: 9px 10px;
  font-size: 0.78rem;
}

.mapping-card h2 {
  margin: 0 0 18px;
  font-size: 1.5rem;
}

.mapping-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.mapping-grid article {
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.mapping-grid h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
}

.mapping-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 920px) {
  .hero-card {
    grid-template-columns: 1fr;
  }

  .mapping-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .zones-header {
    align-items: stretch;
    flex-direction: column;
  }

  .zones-header button {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 18px, 100%);
    padding-top: 18px;
  }

  .hero-card,
  .mapping-card {
    border-radius: 8px;
    padding: 18px;
  }

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