/* 기본 설정 */
:root {
  --primary-color: #ffad31;
  --primary-dark: #e8951f;
  --kakao-yellow: #fee500;
  --kakao-brown: #3c1e1e;
  --text-primary: #1a1a1a;
  --text-secondary: #6b7280;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --border-color: #e5e7eb;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 16px;
}

/* 헤더 */
.header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 0;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  border-radius: 0 0 24px 24px;
  margin: -20px -16px 0 -16px;
  padding-left: 16px;
  padding-right: 16px;
}

.brand-container {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-primary);
  padding: 20px 24px;
  border-radius: 20px;
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--border-color);
}

.brand-logo-wrapper {
  position: relative;
}

.brand-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  object-fit: contain;
  box-shadow: var(--shadow);
  flex-shrink: 0;
}

.brand-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-subtitle {
  margin: 0;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

@media (max-width: 480px) {
  .header {
    padding: 24px 0;
    margin: -20px -16px 0 -16px;
  }
  
  .brand-container {
    padding: 16px 20px;
    gap: 12px;
  }
  
  .brand-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
  }
  
  .brand-title {
    font-size: 20px;
  }
  
  .brand-subtitle {
    font-size: 12px;
  }
}

/* 섹션 */
.section {
  margin-bottom: 48px;
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 20px 0;
  color: var(--text-primary);
  text-align: center;
}

@media (max-width: 480px) {
  .section {
    margin-bottom: 36px;
  }
  
  .section-title {
    font-size: 18px;
    margin-bottom: 16px;
  }
}

/* 아이콘 그리드 */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
}

@media (max-width: 480px) {
  .icon-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
}

@media (max-width: 360px) {
  .icon-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 아이콘 아이템 */
.icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 12px;
  background: var(--bg-primary);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.icon-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
  color: inherit;
}

.icon-item:active {
  transform: translateY(0);
}

@media (max-width: 480px) {
  .icon-item {
    padding: 16px 8px;
  }
}

/* 아이콘 */
.icon {
  font-size: 32px;
  margin-bottom: 8px;
  line-height: 1;
}

@media (max-width: 480px) {
  .icon {
    font-size: 28px;
    margin-bottom: 6px;
  }
}

/* 제목과 부제목 */
.title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 4px;
  line-height: 1.3;
}

.subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.3;
}

@media (max-width: 480px) {
  .title {
    font-size: 13px;
  }
  
  .subtitle {
    font-size: 11px;
  }
}

/* 위젯 그리드 */
.widget-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .widget-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* 위젯 */
.widget {
  background: var(--bg-primary);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.widget-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.refresh-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.refresh-btn:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-1px);
}

/* 정보 그리드 */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.info-item {
  text-align: center;
  padding: 12px;
  background: var(--bg-secondary);
  border-radius: 12px;
}

.info-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 600;
}

.info-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.info-weather {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.weather-icon {
  font-size: 16px;
}

.weather-temp {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.info-updated {
  margin-top: 12px;
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
}

@media (max-width: 480px) {
  .widget {
    padding: 16px;
  }
  
  .info-item {
    padding: 10px;
  }
  
  .info-value,
  .weather-temp {
    font-size: 14px;
  }
  
  .info-label {
    font-size: 11px;
  }
}

/* 터치 디바이스 최적화 */
@media (hover: none) and (pointer: coarse) {
  .icon-item:hover {
    transform: none;
    box-shadow: var(--shadow);
  }
  
  .refresh-btn:hover {
    transform: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
  }
}

/* 접근성 개선 */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* 카카오톡 오픈채팅 스타일 */
.kakao-section .section-title {
  color: var(--kakao-brown);
  position: relative;
}

.kakao-section .section-title::before {
  content: "💬";
  margin-right: 8px;
}

.kakao-item {
  position: relative;
  background: linear-gradient(135deg, #fff9e6 0%, var(--bg-primary) 100%);
  border: 2px solid var(--kakao-yellow);
  box-shadow: 0 2px 8px rgba(254, 229, 0, 0.2);
}

.kakao-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(254, 229, 0, 0.3);
  border-color: #ffd700;
}

.kakao-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--kakao-yellow);
  color: var(--kakao-brown);
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 12px;
  letter-spacing: -0.5px;
}

.kakao-item .icon {
  font-size: 36px;
  margin-bottom: 10px;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.kakao-item .title {
  font-weight: 700;
  color: var(--kakao-brown);
  font-size: 15px;
}

.kakao-item .subtitle {
  color: #8b4513;
  font-weight: 500;
}

@media (max-width: 480px) {
  .kakao-badge {
    font-size: 9px;
    padding: 2px 6px;
    top: 6px;
    right: 6px;
  }
  
  .kakao-item .icon {
    font-size: 32px;
  }
  
  .kakao-item .title {
    font-size: 14px;
  }
}

/* 포커스 스타일 */
.icon-item:focus,
.refresh-btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.kakao-item:focus {
  outline: 2px solid var(--kakao-yellow);
  outline-offset: 2px;
}