/* Design System – Global CSS Variables and Utilities */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Primary palette */
  --color-primary: #ff6600; /* orange brand color */
  --color-primary-light: #ff8533;
  --color-primary-dark: #e65c00;

  /* Neutral colors */
  --color-bg: #f5f5f5;
  --color-surface: rgba(255, 255, 255, 0.9);
  --color-surface-glass: rgba(255, 255, 255, 0.6);
  --color-text: #222222;
  --gradient-purple: linear-gradient(135deg, #9b59b6, #8e44ad);
  --color-muted: #777777;

  /* Spacing */
  --spacing-xs: 0.4rem;
  --spacing-sm: 0.8rem;
  --spacing-md: 1.2rem;
  --spacing-lg: 1.6rem;
  --spacing-xl: 2.4rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.15);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.20);

  /* Transition */
  --transition-fast: 0.15s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html, body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

/* Utility classes */
.glass-panel {
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md);
}

.modern-btn {
  display: inline-block;
  font-weight: 500;
  color: #fff;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-pill);
  padding: var(--spacing-sm) var(--spacing-lg);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-medium), transform var(--transition-fast);
}
.modern-btn:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}
.modern-btn:active {
  background: var(--color-primary-dark);
  transform: translateY(0);
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-medium);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.badge {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
}

.input-field {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-muted);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
}
.input-field:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Responsive typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}
/* Modern select and button for filter form */
.filter-box select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: var(--color-surface-glass);
    border: 1px solid var(--color-muted);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-family: var(--font-base);
    color: var(--color-text);
    cursor: pointer;
    background-image: linear-gradient(45deg, transparent 50%, var(--color-text) 50%),
                      linear-gradient(135deg, var(--color-text) 50%, transparent 50%);
    background-position: calc(100% - 12px) center, calc(100% - 7px) center;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}
.filter-box select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(255,102,0,0.2);
}
.filter-box select:hover {
    background-color: var(--color-surface);
}

/* Button styling for filter form */
.filter-box .btn {
    display: inline-block;
    font-weight: 500;
    color: #fff;
    background: var(--gradient-purple);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-pill);
    border: none;
    cursor: pointer;
    transition: background var(--transition-medium), transform var(--transition-fast);
}
.filter-box .btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}