/* ==========================================================================
   스위트빌 2차 메인 디자인 시스템 (Main CSS)
   ========================================================================== */

:root {
  /* Dynamic HSL Palette */
  --hue-primary: 215;
  --hue-accent: 155;
  --hue-warning: 35;
  --hue-danger: 355;

  --color-primary: hsl(var(--hue-primary), 85%, 55%);
  --color-primary-hover: hsl(var(--hue-primary), 85%, 48%);
  --color-primary-light: hsl(var(--hue-primary), 85%, 96%);

  --color-accent: hsl(var(--hue-accent), 75%, 42%);
  --color-accent-light: hsl(var(--hue-accent), 75%, 94%);

  --color-warning: hsl(var(--hue-warning), 90%, 52%);
  --color-danger: hsl(var(--hue-danger), 85%, 58%);
  --color-danger-light: hsl(var(--hue-danger), 85%, 95%);

  --bg-app: #f4f6f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-solid: #ffffff;
  --border-card: rgba(226, 232, 240, 0.8);

  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.12);

  --backdrop-blur: blur(16px);
  --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* Dark Mode Theme Overrides */
[data-theme="dark"] {
  --bg-app: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.85);
  --bg-card-solid: #1e293b;
  --border-card: rgba(51, 65, 85, 0.8);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-light: #64748b;

  --color-primary-light: rgba(59, 130, 246, 0.15);
  --color-accent-light: rgba(16, 185, 129, 0.15);
  --color-danger-light: rgba(239, 68, 68, 0.15);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* Layout Structure */
.app-header {
  background: var(--bg-card);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--border-card);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 24px;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  font-size: 28px;
  background: var(--color-primary-light);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.brand-title h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-title p {
  font-size: 13px;
  color: var(--text-muted);
}

.header-account-badge {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-card);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.header-account-badge:hover {
  transform: translateY(-1px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.account-info {
  font-size: 13px;
  display: flex;
  flex-direction: column;
}

.account-info .label {
  font-size: 11px;
  color: var(--text-muted);

}

.account-info .num {
  font-weight: 700;
  color: var(--color-primary);
}

.copy-icon-btn {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

/* Navigation Tabs */
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px 0 24px;
}

.nav-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: none;
}

.nav-tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  background: transparent;
  border: 1px solid transparent;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: var(--text-main);
  background: var(--bg-card);
}

.tab-btn.active {
  color: var(--color-primary);
  background: var(--bg-card-solid);
  border-color: var(--border-card);
  box-shadow: var(--shadow-sm);
}

/* Main Content Area */
.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  min-height: calc(100vh - 200px);
}

/* Glass Card Component */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-card:hover {
  box-shadow: var(--shadow-md);
}

/* Common Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

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

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-card);
  color: var(--text-main);
}

.btn-outline:hover {
  background: var(--bg-app);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-danger {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.btn-danger:hover {
  background: var(--color-danger);
  color: #ffffff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--text-main);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform 0.2s ease;
  padding: 24px;
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-card);
}

.modal-header h3 {
  font-size: 18px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-muted);
  cursor: pointer;
}

/* Footer */
.app-footer {
  text-align: center;
  padding: 24px;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-card);
  margin-top: 40px;
}

/* Utilities */
.text-accent { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }
.text-danger { color: var(--color-danger); }
.font-bold { font-weight: 700; }
.hidden { display: none !important; }