:root {
  --bg: #f2efe8;
  --bg-strong: #d8e6ed;
  --surface: rgba(255, 255, 255, 0.76);
  --surface-strong: #ffffff;
  --text: #172333;
  --muted: #5a6877;
  --primary: #0b7a75;
  --primary-strong: #095f5b;
  --accent: #d96f32;
  --border: rgba(23, 35, 51, 0.12);
  --shadow: 0 18px 45px rgba(14, 30, 37, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --content-width: 1240px;
  --font-display: "Avenir Next", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at top left, rgba(11, 122, 117, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(217, 111, 50, 0.18), transparent 24%),
    linear-gradient(180deg, #fbfaf7 0%, var(--bg) 72%, #e7ecef 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding: 2rem;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(17, 33, 55, 0.96), rgba(10, 82, 96, 0.92)),
    linear-gradient(120deg, rgba(217, 111, 50, 0.4), transparent);
  color: #fbfbfd;
  box-shadow: var(--shadow);
}

.compact-hero {
  align-items: center;
}

.hero h1,
.section-heading h2,
.detail-summary strong {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
}

.hero h1 {
  margin: 0 0 0.6rem;
  font-size: clamp(2rem, 4vw, 4.2rem);
}

.hero-copy {
  margin: 0;
  max-width: 58ch;
  color: rgba(251, 251, 253, 0.82);
  line-height: 1.5;
}

.eyebrow {
  margin: 0 0 0.4rem;
  color: rgba(251, 251, 253, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
}

.layout,
.detail-layout {
  display: grid;
  gap: 1.2rem;
  margin-top: 1.2rem;
}

.layout {
  grid-template-columns: minmax(0, 1.7fr) minmax(320px, 0.95fr);
}

.detail-layout {
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.9fr);
}

.sidebar,
.detail-sidebar {
  display: grid;
  gap: 1.2rem;
  align-content: start;
}

.panel {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.section-heading h2 {
  margin: 0.1rem 0 0;
  font-size: clamp(1.4rem, 2vw, 2rem);
}

.search-form,
.search-toolbar,
.stacked-form {
  display: grid;
  gap: 0.9rem;
}

.search-form {
  grid-template-columns: minmax(0, 1.7fr) minmax(180px, 0.8fr) auto;
  align-items: end;
}

.search-toolbar {
  margin: 1rem 0 1.2rem;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
}

.field,
.inline-field {
  display: grid;
  gap: 0.35rem;
}

.field span,
.inline-field span {
  font-size: 0.92rem;
  color: var(--muted);
}

.panel-intro,
.field-help {
  color: var(--muted);
  line-height: 1.5;
}

.panel-intro {
  margin: -0.2rem 0 1rem;
}

.field-help {
  font-size: 0.82rem;
}

.rule-explainer {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid rgba(11, 122, 117, 0.2);
  border-radius: var(--radius-md);
  background: rgba(11, 122, 117, 0.06);
  line-height: 1.45;
}

.rule-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem;
  align-items: start;
}

.rule-badge {
  display: inline-grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
}

.or-divider {
  width: fit-content;
  margin-left: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(17, 33, 55, 0.08);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.calculated-alert-price {
  display: grid;
  gap: 0.35rem;
  margin-top: 0.2rem;
  padding: 1rem;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
}

.calculated-alert-price > span,
.calculated-alert-price small {
  color: rgba(255, 255, 255, 0.78);
}

.calculated-alert-price > strong {
  font-size: clamp(1.45rem, 5vw, 2rem);
}

.calculated-rule-prices {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-top: 0.35rem;
  font-size: 0.82rem;
}

.alert-price-summary {
  border-color: rgba(11, 122, 117, 0.3);
  background: rgba(11, 122, 117, 0.08);
}

input,
select {
  width: 100%;
  min-height: 2.9rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid rgba(23, 35, 51, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
}

input:focus,
select:focus,
button:focus {
  outline: 3px solid rgba(11, 122, 117, 0.22);
  outline-offset: 2px;
}

.primary-button,
.ghost-button,
.stock-item button,
.favorite-actions button,
.range-button {
  min-height: 2.8rem;
  padding: 0.75rem 1rem;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease, color 150ms ease;
}

.primary-button {
  background: var(--primary);
  color: #fff;
}

.primary-button:hover,
.ghost-button:hover,
.stock-item button:hover,
.favorite-actions button:hover,
.range-button:hover {
  transform: translateY(-1px);
}

.ghost-button {
  background: rgba(255, 255, 255, 0.12);
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.panel .ghost-button {
  color: var(--text);
  background: rgba(11, 122, 117, 0.08);
  border-color: rgba(11, 122, 117, 0.14);
}

.stock-list,
.favorites-list,
.alerts-log {
  display: grid;
  gap: 0.8rem;
}

.stock-item,
.favorite-card,
.alert-card,
.summary-card {
  display: grid;
  gap: 0.85rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.88);
}

.stock-item-header,
.favorite-header,
.summary-grid {
  display: grid;
  gap: 0.35rem;
}

.stock-item-header strong,
.favorite-header strong,
.detail-summary strong {
  font-size: 1.1rem;
}

.stock-meta,
.muted,
.favorite-meta,
.tag {
  color: var(--muted);
}

.favorite-key-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.6rem;
}

.favorite-key {
  display: grid;
  gap: 0.2rem;
  padding: 0.7rem 0.75rem;
  border-radius: 12px;
  background: rgba(216, 230, 237, 0.46);
}

.favorite-key span {
  color: var(--muted);
  font-size: 0.78rem;
}

.favorite-key strong {
  font-size: 1rem;
}

.value-positive {
  color: var(--primary);
}

.value-negative {
  color: #b34d24;
}

.stock-actions,
.favorite-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.stock-actions button,
.favorite-actions button,
.range-button {
  background: rgba(11, 122, 117, 0.09);
  color: var(--text);
}

.stock-actions button.primary-button,
.favorite-actions button.primary-button,
.range-button.active {
  background: var(--primary);
  color: #fff;
}

.hidden {
  display: none !important;
}

.detail-summary,
.detection-output {
  display: grid;
  gap: 0.85rem;
}

.summary-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.summary-card span {
  font-size: 0.85rem;
  color: var(--muted);
}

.chart-card {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(216, 230, 237, 0.65));
}

#history-chart {
  width: 100%;
  min-height: 320px;
}

.range-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.alert-card.warning {
  border-color: rgba(217, 111, 50, 0.4);
  background: rgba(255, 248, 242, 0.95);
}

.alert-card.success {
  border-color: rgba(11, 122, 117, 0.32);
  background: rgba(241, 253, 250, 0.95);
}

@media (max-width: 980px) {
  .layout,
  .detail-layout,
  .search-form,
  .search-toolbar {
    grid-template-columns: 1fr;
  }

  .hero,
  .section-heading {
    align-items: stretch;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(calc(100% - 1rem), var(--content-width));
    padding-top: 0.5rem;
  }

  .hero,
  .panel {
    padding: 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .primary-button,
  .ghost-button,
  .stock-item button,
  .favorite-actions button,
  .range-button {
    width: 100%;
  }

  .stock-actions,
  .favorite-actions,
  .section-heading,
  .hero {
    flex-direction: column;
  }
}