/* ===== ETECH ITSM Portal - Common Styles ===== */
/* 공통 스타일 시트 */

/* CSS Variables */
:root {
  /* Background Colors */
  --bg-primary: linear-gradient(135deg, #2c1810 0%, #1a1a1a 50%, #000000 100%);
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --bg-overlay: rgba(0, 0, 0, 0.1);
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --text-muted: rgba(255, 255, 255, 0.6);
  
  /* Accent Colors */
  --accent-primary: #4a148c;
  --accent-hover: #6a1b9a;
  --accent-secondary: #d2691e;
  
  /* Status Colors */
  --status-success: #4caf50;
  --status-warning: #ff9800;
  --status-error: #f44336;
  --status-info: #2196f3;
  
  /* Border Colors */
  --border-primary: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.2);
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  
  /* Shadows */
  --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
}

body {
  font-family: "Arial", "Malgun Gothic", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  position: relative;
}

/* Typography */
h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
}

/* Links */
a {
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--text-secondary);
}

/* Utility Classes */
.text-small {
  font-size: 14px;
}

.text-muted {
  color: var(--text-muted);
}

.text-center {
  text-align: center;
}

.hidden {
  display: none !important;
}

/* Buttons */
.btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-hover), var(--accent-primary));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-logout {
  background: linear-gradient(135deg, #f44336 0%, #d32f2f 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 10px 20px;
  border-radius: 20px;
  color: white;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(244, 67, 54, 0.2);
  white-space: nowrap;
}

.btn-logout:hover {
  background: linear-gradient(135deg, #ff5722 0%, #f44336 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(244, 67, 54, 0.3);
}

/* User Info */
.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  padding: 10px 18px;
  border-radius: 25px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.user-info:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.user-name {
  font-size: 14px;
  font-weight: 600;
  color: white;
  margin-right: 4px;
  white-space: nowrap;
}

.user-department {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
  background: rgba(106, 27, 154, 0.2);
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 500;
  border: 1px solid rgba(106, 27, 154, 0.3);
  white-space: nowrap;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-primary);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

/* Loading Spinner */
.loading {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ===== Responsive Design ===== */

/* Large Tablet (992px ~ 1199px) */
@media (max-width: 1199px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
}

/* Medium Tablet (768px ~ 991px) */
@media (max-width: 991px) {
  .user-info {
    padding: 8px 14px;
    gap: 10px;
  }
  
  .user-name {
    font-size: 13px;
  }
  
  .user-department {
    font-size: 11px;
    padding: 2px 8px;
  }
  
  .btn-logout {
    padding: 8px 16px;
    font-size: 0.85rem;
  }
}

/* Mobile (up to 767px) */
@media (max-width: 767px) {
  body {
    font-size: 14px;
  }
  
  h1 {
    font-size: 1.75rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
  
  .user-info {
    padding: 6px 12px;
    gap: 8px;
  }
  
  .user-name {
    font-size: 0.85rem;
    margin-right: 0;
  }
  
  .user-department {
    font-size: 0.75rem;
    padding: 2px 8px;
  }
  
  .btn-logout {
    padding: 6px 14px;
    font-size: 0.85rem;
  }
}

/* Extra Small Mobile (up to 480px) */
@media (max-width: 480px) {
  body {
    font-size: 13px;
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  h2 {
    font-size: 1.3rem;
  }
  
  h3 {
    font-size: 1.1rem;
  }
  
  .btn {
    padding: 8px 16px;
    font-size: 0.85rem;
  }
  
  .user-info {
    padding: 6px 10px;
    gap: 6px;
  }
  
  .user-name {
    font-size: 0.8rem;
  }
  
  .user-department {
    font-size: 0.7rem;
    padding: 2px 6px;
  }
  
  .btn-logout {
    padding: 6px 12px;
    font-size: 0.8rem;
  }
}