/* ==========================================
   GAMER NETWORKING PLATFORM - DESIGN SYSTEM
   ========================================== */

/* CSS Variables - Design Tokens */
:root {
  /* Colors - BenQ Inspired Clean Theme */
  --primary-bg: #ffffff;
  --secondary-bg: #f8f7fc;
  --tertiary-bg: #f0eef7;
  --card-bg: #ffffff;

  /* Accent Colors - BenQ Purple */
  --accent-primary: #492083;
  --accent-secondary: #6b38b8;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;

  /* Text Colors */
  --text-primary: #1a1a1a;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;

  /* Border & Dividers */
  --border-color: #e5e7eb;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Typography - Space Grotesk */
  --font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(73, 32, 131, 0.05);
  --shadow-md: 0 4px 6px rgba(73, 32, 131, 0.1);
  --shadow-lg: 0 10px 15px rgba(73, 32, 131, 0.15);
  --shadow-glow: 0 0 20px rgba(73, 32, 131, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

/* Local Font - Space Grotesk */
@font-face {
  font-family: 'Space Grotesk';
  src: url('../fonts/space-grotesk/SpaceGrotesk-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Space Grotesk';
  src: url('../fonts/space-grotesk/SpaceGrotesk-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Space Grotesk';
  src: url('../fonts/space-grotesk/SpaceGrotesk-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Space Grotesk';
  src: url('../fonts/space-grotesk/SpaceGrotesk-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

body {
  font-family: var(--font-family);
  background-color: var(--primary-bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-weight: 400;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

img {
  max-width: 100%;
  height: auto;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

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

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

.text-gradient {
  background: linear-gradient(135deg, #492083, #6b38b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==========================================
   LAYOUT COMPONENTS
   ========================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-2xl) 0;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Flex Utilities */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ==========================================
   COMPONENTS
   ========================================== */

/* Cards */
.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  gap: var(--spacing-sm);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--tertiary-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

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

.btn-outline {
  background: transparent;
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

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

.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 16px 32px;
  font-size: var(--font-size-lg);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--tertiary-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: 999px;
  gap: var(--spacing-xs);
}

.badge-primary {
  background: rgba(0, 217, 255, 0.2);
  color: var(--accent-primary);
}

.badge-success {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-warning);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-danger);
}

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(73, 32, 131, 0.05);
}

.navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-nav {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-primary);
}

/* Profile Components */
.avatar {
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent-primary);
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-md { width: 48px; height: 48px; }
.avatar-lg { width: 64px; height: 64px; }
.avatar-xl { width: 128px; height: 128px; }

.status-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  margin-right: var(--spacing-xs);
}

.status-online { background: var(--accent-success); }
.status-away { background: var(--accent-warning); }
.status-offline { background: var(--text-muted); }

/* Progress Bar */
.progress {
  width: 100%;
  height: 8px;
  background: var(--tertiary-bg);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 999px;
  transition: width var(--transition-slow);
}

/* Tags/Pills */
.tag {
  display: inline-block;
  padding: 6px 12px;
  background: var(--tertiary-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 4px;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--accent-primary);
  color: var(--primary-bg);
  border-color: var(--accent-primary);
}

/* Stats Display */
.stat-box {
  text-align: center;
  padding: var(--spacing-md);
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-primary);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.w-full { width: 100%; }
.h-full { height: 100%; }

.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }

/* ==========================================
   RESPONSIVE UTILITIES
   ========================================== */

@media (max-width: 768px) {
  .hide-mobile { display: none; }
  .container { padding: 0 var(--spacing-md); }
  h1 { font-size: var(--font-size-2xl); }
  h2 { font-size: var(--font-size-xl); }
}

@media (min-width: 769px) {
  .hide-desktop { display: none; }
}