:root {
  --bg-gradient: linear-gradient(135deg, #f7efe5, #e8f4f8);
  --text-color: #222;
  --header-gradient: linear-gradient(135deg, #6f4e37, #a77955);
  --card-bg: white;
  --card-shadow: rgba(0, 0, 0, 0.08);
  --button-bg: #6f4e37;
  --button-hover: #4f3524;
  --status-color: #666;
  --info-box-bg: #faf7f2;
  --info-box-border: #eee1d5;
  --info-box-title: #5a3926;
  --weather-temp-color: #6f4e37;
  --recommend-menu-color: #2d5c4d;
  --cafe-card-bg: #fff;
  --cafe-card-border: #eee;
  --cafe-card-title: #4f3524;
  --tag-bg: #e8f4f8;
  --tag-color: #276678;
  --footer-color: #777;
}

[data-theme="dark"] {
  --bg-gradient: linear-gradient(135deg, #1a1a1a, #2c2c2c);
  --text-color: #e0e0e0;
  --header-gradient: linear-gradient(135deg, #3e2723, #5d4037);
  --card-bg: #2d2d2d;
  --card-shadow: rgba(0, 0, 0, 0.3);
  --button-bg: #8d6e63;
  --button-hover: #a1887f;
  --status-color: #bbb;
  --info-box-bg: #333;
  --info-box-border: #444;
  --info-box-title: #d7ccc8;
  --weather-temp-color: #d7ccc8;
  --recommend-menu-color: #81c784;
  --cafe-card-bg: #333;
  --cafe-card-border: #444;
  --cafe-card-title: #d7ccc8;
  --tag-bg: #37474f;
  --tag-color: #81d4fa;
  --footer-color: #999;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", Arial, sans-serif;
  background: var(--bg-gradient);
  color: var(--text-color);
  transition: background 0.3s, color 0.3s;
  min-height: 100vh;
}

header {
  padding: 60px 20px 40px;
  text-align: center;
  background: var(--header-gradient);
  color: white;
  position: relative;
}

header h1 {
  margin: 0;
  font-size: 34px;
  font-weight: 800;
}

header p {
  margin-top: 14px;
  font-size: 17px;
  opacity: 0.95;
}

.theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  transition: 0.2s;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.3);
}

main {
  max-width: 1100px;
  margin: -30px auto 60px;
  padding: 0 20px;
}

.card {
  background: var(--card-bg);
  border-radius: 22px;
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: 0 12px 35px var(--card-shadow);
  transition: background 0.3s, box-shadow 0.3s;
}

.center {
  text-align: center;
}

button:not(.theme-toggle) {
  border: none;
  background: var(--button-bg);
  color: white;
  padding: 15px 26px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: 0.2s;
}

button:not(.theme-toggle):hover {
  background: var(--button-hover);
  transform: translateY(-2px);
}

.status {
  margin-top: 18px;
  color: var(--status-color);
  line-height: 1.6;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.info-box {
  background: var(--info-box-bg);
  border-radius: 18px;
  padding: 22px;
  border: 1px solid var(--info-box-border);
}

.info-box h2 {
  margin-top: 0;
  font-size: 22px;
  color: var(--info-box-title);
}

.weather-temp {
  font-size: 42px;
  font-weight: 800;
  margin: 12px 0;
  color: var(--weather-temp-color);
}

.recommend-menu {
  font-size: 20px;
  font-weight: 800;
  color: var(--recommend-menu-color);
  margin-top: 10px;
  line-height: 1.5;
}

.cafe-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.cafe-card {
  background: var(--cafe-card-bg);
  border: 1px solid var(--cafe-card-border);
  border-radius: 18px;
  padding: 20px;
  transition: 0.2s, background 0.3s, border 0.3s;
}

.cafe-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px var(--card-shadow);
}

.cafe-card h3 {
  margin: 0 0 8px;
  color: var(--cafe-card-title);
}

.cafe-card p {
  margin: 6px 0;
  color: var(--status-color);
  font-size: 14px;
  line-height: 1.5;
}

.cafe-card a {
  display: inline-block;
  margin-top: 10px;
  color: var(--button-bg);
  font-weight: 700;
  text-decoration: none;
}

.tag {
  display: inline-block;
  padding: 6px 10px;
  background: var(--tag-bg);
  color: var(--tag-color);
  border-radius: 999px;
  font-size: 13px;
  margin-top: 8px;
}

footer {
  text-align: center;
  padding: 30px 20px;
  color: var(--footer-color);
  font-size: 14px;
}

.hidden {
  display: none;
}