:root {
  --bg: #f6f0e7;
  --surface: #fffaf3;
  --line: rgba(62, 76, 69, 0.16);
  --accent: #b6482f;
  --accent-dark: #873523;
  --text: #1f2522;
  --muted: #66736d;
  --ok: #216b4b;
  --warn: #b9791d;
  --shadow: 0 14px 32px rgba(63, 39, 20, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(182, 72, 47, 0.14), transparent 28%),
    linear-gradient(180deg, #fbf6ef 0%, var(--bg) 100%);
}

.mobile-shell {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px;
}

.mobile-hero,
.mobile-panel {
  background: rgba(255, 252, 247, 0.92);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.mobile-hero {
  padding: 20px;
  margin-bottom: 16px;
}

.install-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
  padding: 16px 18px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(182, 72, 47, 0.12), rgba(255, 255, 255, 0.94));
  border: 1px solid rgba(182, 72, 47, 0.2);
  box-shadow: var(--shadow);
}

.install-banner strong {
  display: block;
  margin-bottom: 4px;
}

.install-banner p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.install-banner button {
  border: 0;
  border-radius: 14px;
  padding: 12px 16px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 700;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 11px;
  color: var(--accent);
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.05;
}

.hero-copy {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.mobile-panel {
  padding: 16px;
}

.exchange-card {
  margin-bottom: 16px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
}

.exchange-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.exchange-card strong {
  display: block;
  font-size: 20px;
  line-height: 1.2;
}

.exchange-meta {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.mobile-filters {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
}

input,
select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(92, 106, 98, 0.18);
  background: #fff;
  color: var(--text);
  font: inherit;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.summary-card {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
}

.summary-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.summary-card strong {
  display: block;
  font-size: 17px;
  line-height: 1.25;
  word-break: break-word;
}

.nested {
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
}

.nested summary {
  padding: 14px;
  cursor: pointer;
  color: var(--accent-dark);
  font-weight: 700;
}

.machine-list {
  padding: 0 14px 14px;
  display: grid;
  gap: 10px;
}

.machine-item,
.record-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  padding: 14px;
}

.machine-item strong,
.record-card h3 {
  display: block;
  margin: 0 0 6px;
}

.cards {
  display: grid;
  gap: 12px;
}

.record-card h3 {
  font-size: 17px;
  line-height: 1.3;
}

.record-code {
  color: var(--accent-dark);
  font-weight: 700;
  margin-bottom: 8px;
}

.record-grid {
  display: grid;
  gap: 8px;
}

.record-row {
  display: grid;
  gap: 2px;
}

.record-row span {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.record-row strong {
  font-size: 14px;
  line-height: 1.4;
}

.offer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.offer-pill {
  padding: 9px 10px;
  border-radius: 12px;
  background: #f7f3ec;
  border: 1px solid var(--line);
}

.offer-pill span {
  display: block;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
}

.offer-pill strong {
  display: block;
  margin-top: 4px;
  font-size: 14px;
}

.empty-state {
  padding: 26px 16px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.5);
}

@media (min-width: 720px) {
  .mobile-filters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .summary-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (max-width: 520px) {
  .install-banner {
    flex-direction: column;
    align-items: stretch;
  }
}