*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --accent: #f97316;
  --accent-hover: #ea580c;
  --accent-muted: rgba(249, 115, 22, 0.15);
  --bg: #0f0f0f;
  --bg-card: #1a1a1a;
  --bg-input: #242424;
  --border: #2e2e2e;
  --text: #f5f5f5;
  --text-muted: #a3a3a3;
  --success: #22c55e;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Layout */
.container {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 1.25rem;
}

/* Header / Logo */
.header {
  text-align: center;
  padding: 2rem 0 1.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.tagline {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 0.35rem;
}

/* Nav */
.nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav a:hover,
.nav a.active {
  color: var(--accent);
  text-decoration: none;
}

.nav a.active {
  border-bottom-color: var(--accent);
}

/* Search */
.search-section {
  margin-bottom: 1.5rem;
}

.search-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.search-input-wrap {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 2.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  font-size: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.875rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-full {
  width: 100%;
}

/* Results */
.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.results-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.results-count {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.results-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.125rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem 1rem;
  align-items: start;
  transition: border-color 0.2s;
}

.result-card:hover {
  border-color: rgba(249, 115, 22, 0.4);
}

.result-card.cheapest {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(249, 115, 22, 0.06) 100%);
}

.result-rank {
  grid-column: 1 / -1;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: -0.25rem;
}

.result-store {
  font-weight: 700;
  font-size: 1.05rem;
}

.result-address {
  font-size: 0.85rem;
  color: var(--text-muted);
  grid-column: 1;
}

.result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  grid-column: 1;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.result-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.result-price-wrap {
  text-align: right;
}

.result-price {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.result-price-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Empty / status states */
.empty-state,
.status-message {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--text);
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.status-message {
  padding: 1rem;
  background: var(--accent-muted);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.status-message.error {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
}

.hidden {
  display: none !important;
}

/* Submit form */
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.form-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.form-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.125rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

.success-banner {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius-sm);
  padding: 1rem;
  color: var(--success);
  text-align: center;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* Responsive */
@media (max-width: 480px) {
  .search-row {
    flex-direction: column;
  }

  .search-input-wrap {
    min-width: 100%;
  }

  .btn-secondary {
    width: 100%;
  }

  .result-card {
    grid-template-columns: 1fr;
  }

  .result-price-wrap {
    text-align: left;
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}