/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #f0f4f8;
  --color-surface: #ffffff;
  --color-primary: #4a6cf7;
  --color-primary-light: #6b8cff;
  --color-primary-dark: #3451c7;
  --color-text: #2d3748;
  --color-text-light: #718096;
  --color-border: #e2e8f0;
  --color-success: #48bb78;
  --color-warning: #ed8936;
  --color-danger: #fc8181;
  --color-info: #63b3ed;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

body.dark-mode {
  --color-bg: #1a202c;
  --color-surface: #2d3748;
  --color-text: #f7fafc;
  --color-text-light: #a0aec0;
  --color-border: #4a5568;
}

body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition), color var(--transition);
}

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 16px calc(40px + var(--safe-bottom));
}

.hidden {
  display: none !important;
}

/* === Header === */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 8px;
}

.header-content {
  text-align: left;
}

.header h1 {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-top: 4px;
  font-weight: 300;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.theme-toggle-btn, .lang-toggle-btn {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.theme-toggle-btn:hover, .lang-toggle-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.theme-toggle-btn:active, .lang-toggle-btn:active {
  transform: scale(0.95) translateY(-1px);
}


/* === Search Section === */
.search-section {
  margin: 28px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.search-box {
  display: flex;
  width: 100%;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 2px solid transparent;
  transition: border-color var(--transition), background-color var(--transition);
}

.search-box:focus-within {
  border-color: var(--color-primary-light);
}

.search-box input {
  flex: 1;
  border: none;
  padding: 16px 20px;
  font-size: 1rem;
  font-family: inherit;
  background: transparent;
  color: var(--color-text);
  outline: none;
}

.search-box input::placeholder {
  color: #a0aec0;
}

#search-btn {
  background: var(--color-primary);
  color: white;
  border: none;
  padding: 0 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

#search-btn:hover {
  background: var(--color-primary-dark);
}

#search-btn:active {
  transform: scale(0.96);
}

#location-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 0.88rem;
  font-family: inherit;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

#location-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(74, 108, 247, 0.04);
}

#location-btn:active {
  transform: scale(0.97);
}

/* === Loading === */
.loading {
  text-align: center;
  padding: 48px 0;
  color: var(--color-text-light);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  margin: 0 auto 16px;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === Error === */
.error-msg {
  background: #fff5f5;
  color: #c53030;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.9rem;
  border: 1px solid #fed7d7;
  margin-bottom: 20px;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

body.dark-mode .error-msg {
  background: #4a3232;
  color: #fc8181;
  border-color: #c53030;
}


/* === Weather Card === */
.weather-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px;
  display: flex;
  gap: 28px;
  align-items: center;
  margin-bottom: 24px;
  transition: background-color var(--transition);
}

.weather-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 120px;
}

.weather-icon {
  font-size: 56px;
  line-height: 1;
  margin-bottom: 4px;
}

.weather-temp {
  display: flex;
  align-items: flex-start;
}

.temp-value {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
}

.temp-unit {
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--color-text-light);
  margin-top: 6px;
}

.weather-info {
  flex: 1;
}

.city-name {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.weather-desc {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 16px;
  text-transform: capitalize;
}

.weather-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.detail-item svg {
  flex-shrink: 0;
  opacity: 0.6;
}

.detail-item strong {
  color: var(--color-text);
  font-weight: 500;
}

/* === Gender Toggle === */
.gender-toggle {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
  margin-bottom: 12px;
  transition: background-color var(--transition);
}

.gender-buttons {
  display: flex;
  gap: 8px;
}

.gender-btn {
  flex: 1;
  padding: 12px 18px;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.gender-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  background: rgba(74, 108, 247, 0.04);
}

.gender-btn:active {
  transform: scale(0.96);
}

.gender-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(74, 108, 247, 0.3);
}

/* === Situation Filters === */
.situation-filters {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
  margin-bottom: 24px;
  transition: background-color var(--transition);
}

.filter-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.filter-buttons {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 2px;
}

.filter-buttons::-webkit-scrollbar {
  display: none;
}

.filter-btn {
  flex-shrink: 0;
  padding: 10px 18px;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  background: rgba(74, 108, 247, 0.04);
}

.filter-btn:active {
  transform: scale(0.96);
}

.filter-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(74, 108, 247, 0.3);
}

/* === Outfit Section === */
.outfit-section {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 24px;
  transition: background-color var(--transition);
}

.outfit-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text);
}

.outfit-title svg {
  color: var(--color-primary);
}

.temp-label {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 20px;
  transition: background-color var(--transition), color var(--transition);
}

.ai-note {
  margin: -8px 0 16px;
  font-size: 0.78rem;
  color: var(--color-text-light);
}

.full-outfit-container {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  margin-bottom: 18px;
}

#full-outfit-img {
  width: 100%;
  display: block;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: #e2e8f0;
}

body.dark-mode #full-outfit-img {
  background: #4a5568;
}

.temp-label.very-hot { background: #fff5f5; color: #e53e3e; }
.temp-label.hot { background: #fffaf0; color: #dd6b20; }
.temp-label.warm { background: #fefcbf; color: #b7791f; }
.temp-label.mild { background: #f0fff4; color: #38a169; }
.temp-label.cool { background: #ebf8ff; color: #3182ce; }
.temp-label.chilly { background: #ebf4ff; color: #4c51bf; }
.temp-label.cold { background: #eee; color: #5a67d8; }
.temp-label.very-cold { background: #e8e0f0; color: #6b46c1; }
.temp-label.freezing { background: #e2e8f0; color: #4a5568; }

body.dark-mode .temp-label.very-hot { background: #4a2121; color: #fed7d7; }
body.dark-mode .temp-label.hot { background: #4a371c; color: #feebc8; }
body.dark-mode .temp-label.warm { background: #4a4a1c; color: #fefcbf; }
body.dark-mode .temp-label.mild { background: #1c4a21; color: #c6f6d5; }
body.dark-mode .temp-label.cool { background: #1c3a4a; color: #bee3f8; }
body.dark-mode .temp-label.chilly { background: #1c214a; color: #c3dafe; }
body.dark-mode .temp-label.cold { background: #2c2c4a; color: #e2e8f0; }
body.dark-mode .temp-label.very-cold { background: #3c2c4a; color: #e9d8fd; }
body.dark-mode .temp-label.freezing { background: #4a4a4a; color: #e2e8f0; }

.outfit-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.outfit-cards.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.outfit-card {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
  overflow: hidden;
}

.outfit-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.outfit-card:active {
  transform: scale(0.97);
}

.outfit-card .outfit-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 8px;
  background: #e2e8f0;
}

.ai-image {
  background: linear-gradient(110deg, #e2e8f0 8%, #f8fafc 18%, #e2e8f0 33%);
  background-size: 200% 100%;
  animation: shimmer 1.2s linear infinite;
}

.ai-image.is-loaded {
  animation: none;
  background: none;
}

@keyframes shimmer {
  to {
    background-position: -200% 0;
  }
}

body.dark-mode .outfit-card .outfit-img {
    background: #4a5568;
}

body.dark-mode .ai-image {
  background: linear-gradient(110deg, #3c4657 8%, #4a5568 18%, #3c4657 33%);
}

.outfit-card .icon {
  font-size: 2rem;
  margin-bottom: 8px;
}

.outfit-card .name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
}

.outfit-card .desc {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 2px;
}

.outfit-tip {
  background: linear-gradient(135deg, #ebf4ff, #f0f4ff);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 0.88rem;
  color: #4a5568;
  line-height: 1.7;
  border-left: 3px solid var(--color-primary);
  transition: background-color var(--transition), color var(--transition);
}

body.dark-mode .outfit-tip {
    background: linear-gradient(135deg, #2d3748, #1a202c);
    color: #a0aec0;
}

/* === Weather Alert === */
.weather-alert {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  margin-bottom: 24px;
  transition: background-color var(--transition), border-color var(--transition);
}

.weather-alert .alert-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.weather-alert.rain {
  border-left: 4px solid var(--color-info);
}

.weather-alert.snow {
  border-left: 4px solid #a0d2db;
}

/* === Share Section === */
.share-section {
  margin-bottom: 24px;
}

.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.share-btn.kakao {
  background: #FEE500;
  color: #3C1E1E;
  box-shadow: 0 2px 12px rgba(254, 229, 0, 0.3);
}

.share-btn.kakao:hover {
  background: #F5DC00;
  box-shadow: 0 4px 16px rgba(254, 229, 0, 0.4);
}

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

.share-btn svg {
  flex-shrink: 0;
}

/* === Toast === */
.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-family: 'Noto Sans KR', sans-serif;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 1000;
  white-space: nowrap;
}

body.dark-mode .toast {
    background: #f0f4f8;
    color: #1a202c;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* === Footer === */
.footer {
  text-align: center;
  padding: 24px 0;
  color: #a0aec0;
  font-size: 0.78rem;
}

/* === Animations === */
.result {
  animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === Responsive - Mobile === */
@media (max-width: 480px) {
  .app {
    padding: 16px 12px calc(32px + var(--safe-bottom));
  }

  .header {
    padding: 16px 0 4px;
  }

  .header h1 {
    font-size: 1.6rem;
  }

  .subtitle {
    font-size: 0.85rem;
  }

  .theme-toggle-btn, .lang-toggle-btn {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }

  .search-section {
    margin: 20px 0;
  }

  .search-box input {
    padding: 14px 16px;
    font-size: 16px; /* Prevents iOS zoom on focus */
  }

  .weather-card {
    flex-direction: column;
    text-align: center;
    padding: 24px 20px;
    gap: 16px;
  }

  .weather-main {
    min-width: auto;
  }

  .weather-icon {
    font-size: 48px;
  }

  .temp-value {
    font-size: 2.5rem;
  }

  .weather-details {
    grid-template-columns: 1fr 1fr;
    justify-items: center;
    gap: 8px;
  }

  .detail-item {
    font-size: 0.8rem;
  }

  .gender-toggle {
    padding: 16px 16px;
    margin-bottom: 8px;
  }

  .gender-btn {
    font-size: 0.88rem;
    padding: 10px 14px;
  }

  .situation-filters {
    padding: 16px 16px;
  }

  .filter-label {
    font-size: 0.8rem;
    margin-bottom: 10px;
  }

  .filter-buttons {
    gap: 6px;
  }

  .filter-btn {
    padding: 9px 14px;
    font-size: 0.82rem;
  }

  .outfit-section {
    padding: 20px 16px;
  }

  .outfit-title {
    font-size: 1rem;
  }

  .outfit-cards {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
  }

  .outfit-card {
    padding: 12px 8px;
  }

  .outfit-card .icon {
    font-size: 1.6rem;
    margin-bottom: 6px;
  }

  .outfit-card .name {
    font-size: 0.8rem;
  }

  .outfit-card .desc {
    font-size: 0.7rem;
  }

  .outfit-tip {
    padding: 14px 16px;
    font-size: 0.82rem;
  }

  .weather-alert {
    padding: 16px 18px;
    font-size: 0.85rem;
  }

  .share-btn {
    padding: 13px 20px;
    font-size: 0.9rem;
  }

  .toast {
    bottom: 60px;
    font-size: 0.82rem;
    padding: 10px 20px;
  }
}

/* === Small phones === */
@media (max-width: 360px) {
  .header h1 {
    font-size: 1.4rem;
  }

  .filter-btn {
    padding: 8px 12px;
    font-size: 0.78rem;
  }

  .outfit-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .weather-details {
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }
}