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

:root {
  --bg-page: #f5f5f7;
  --bg-container: #ffffff;
  --bg-card: #ffffff;
  --bg-hero: #faf9ff;
  --bg-toggle: #faf9ff;
  --border-color: #e0e0e0;
  --text-primary: #111827;
  --text-muted: #aaaaaa;
  --accent: #3b82f6;
  --search-bg: #ffffff;
  --result-hover-bg: #f0f7ff;
}

body.dark-mode {
  --bg-page: #0f1117;
  --bg-container: #1a1d27;
  --bg-card: #1e2130;
  --bg-hero: #1e2130;
  --bg-toggle: #1e2130;
  --border-color: #2e3245;
  --text-primary: #e5e7eb;
  --text-muted: #6b7280;
  --accent: #60a5fa;
  --search-bg: #1e2130;
  --result-hover-bg: #252840;
}

body {
  background-color: var(--bg-page);
  font-family: "Syne", sans-serif;
  min-height: 100vh;
}

.app-container {
  max-width: 1200px;
  margin: 35px auto;
  padding: 25px;
  padding-bottom: 50px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background-color: var(--bg-container);
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.app-logo .logo-icon {
  font-size: 28px;
  vertical-align: middle;
}

.app-logo h1 {
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0.15em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--text-primary);
}

.theme-toggle {
  background: var(--bg-toggle);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 20px;
  padding: 8px 16px;
  cursor: pointer;
  font-family: "Syne", sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-section {
  background: var(--bg-hero);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  padding: 16px 18px;
  margin-bottom: 12px;
  transition: border-color 0.3s ease;
  cursor: pointer;
}

.hero-section:hover {
  border-color: var(--accent);
}

.local-city-name h2 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.local-hero-time span {
  font-family: "Space Mono", monospace;
  font-size: 52px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -1px;
  line-height: 1;
}

.local-hero-date span {
  font-family: "Space Mono", monospace;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 5px;
  display: block;
}

.local-hero-badge span {
  display: inline-block;
  background: var(--bg-toggle);
  color: var(--accent);
  border: 1px solid var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 20px;
  margin-top: 10px;
}

.city-clock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.city-clock-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px 18px;
  transition: border-color 0.3s ease;
  position: relative;
}

.city-clock-card:hover {
  border-color: var(--accent);
}

.city-clock-card h3 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.city-card-time {
  font-family: "Space Mono", monospace;
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -1px;
  line-height: 1;
}

.city-clock-card p {
  font-family: "Space Mono", monospace;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

.remove-card-btn {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 13px;
  padding: 0;
  line-height: 1;
}

.remove-card-btn:hover {
  color: var(--accent);
}

.timezone {
  margin-top: 12px;
}

.search-container {
  position: relative;
  margin-top: 12px;
}

.search-input {
  display: block;
  width: 100%;
  padding: 15px 14px;
  background: var(--search-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: "Syne", sans-serif;
  font-size: 15px;
  outline: none;
}

.search-input:focus {
  border-color: var(--accent);
}

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--search-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  list-style: none;
  max-height: 200px;
  overflow-y: auto;
  display: none;
  z-index: 10;
}

.search-results li {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  font-family: "Syne", sans-serif;
}

.search-results li:hover {
  background: var(--result-hover-bg);
  color: var(--accent);
}

.footer {
  width: 100%;
  padding: 20px 35px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.footer p {
  font-size: 15px;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  font-size: 20px;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent);
}