/* ============================================
   NICHIFY PRO - CORE CSS
   Modern Dark Theme + Glassmorphism
   ============================================ */

/* ============================================
   1. CSS VARIABLES (Renk Paleti)
   ============================================ */
:root {
  /* Ana Renkler - Koyu Tema */
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1420;
  --bg-tertiary: #131929;
  --bg-card: #1a2138;
  --bg-elevated: #1f2940;
  
  /* Glass Efektleri */
  --glass-bg: rgba(26, 33, 56, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(20px);
  
  /* Sidebar */
  --sidebar-bg: #0d1220;
  --sidebar-width: 260px;
  
  /* Text Renkleri */
  --text-primary: #f0f4ff;
  --text-secondary: #b8c0d0;
  --text-muted: #8a99b8;
  --text-dim: #5a6580;
  
  /* Accent Renkler */
  --accent-blue: #4da3ff;
  --accent-purple: #a78bfa;
  --accent-pink: #f472b6;
  --accent-cyan: #22d3ee;
  
  /* Status Renkleri */
  --success: #45e08a;
  --warning: #ffd166;
  --danger: #ff5c7a;
  --info: #4da3ff;
  
  /* Gradient'ler */
  --gradient-primary: linear-gradient(135deg, #4da3ff 0%, #a78bfa 100%);
  --gradient-secondary: linear-gradient(135deg, #f472b6 0%, #a78bfa 100%);
  --gradient-success: linear-gradient(135deg, #45e08a 0%, #22d3ee 100%);
  --gradient-warm: linear-gradient(135deg, #ffd166 0%, #ff5c7a 100%);
  --gradient-cool: linear-gradient(135deg, #22d3ee 0%, #4da3ff 100%);
  --gradient-aurora: linear-gradient(135deg, #4da3ff 0%, #a78bfa 50%, #f472b6 100%);
  
  /* Glow Efektleri */
  --glow-blue: 0 0 30px rgba(77, 163, 255, 0.3);
  --glow-purple: 0 0 30px rgba(167, 139, 250, 0.3);
  --glow-pink: 0 0 30px rgba(244, 114, 182, 0.3);
  --glow-success: 0 0 30px rgba(69, 224, 138, 0.3);
  
  /* Border'lar */
  --border-color: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-active: rgba(77, 163, 255, 0.5);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
  
  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Font */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 1000;
  --z-popover: 1100;
  --z-tooltip: 1200;
}

/* ============================================
   2. RESET & BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
  
  /* Animasyonlu arka plan */
  background-image: 
    radial-gradient(circle at 20% 10%, rgba(77, 163, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 90%, rgba(167, 139, 250, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(244, 114, 182, 0.04) 0%, transparent 60%);
  background-attachment: fixed;
}

/* ============================================
   3. SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue);
}

/* ============================================
   4. TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

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

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

strong { font-weight: 700; color: var(--text-primary); }

code, pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

code {
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
}

/* ============================================
   5. GRADIENT TEXT
   ============================================ */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.gradient-text-warm {
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-aurora {
  background: var(--gradient-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: gradient-shift 8s ease infinite;
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ============================================
   6. UTILITY CLASSES
   ============================================ */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-sm { max-width: 800px; }
.container-md { max-width: 1100px; }
.container-lg { max-width: 1400px; }
.container-xl { max-width: 1600px; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto-fit { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

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

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }

.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.text-blue { color: var(--accent-blue); }
.text-purple { color: var(--accent-purple); }
.text-pink { color: var(--accent-pink); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.bg-primary { background: var(--bg-primary); }
.bg-secondary { background: var(--bg-secondary); }
.bg-card { background: var(--bg-card); }
.bg-glass { 
  background: var(--glass-bg); 
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

.glow-blue { box-shadow: var(--glow-blue); }
.glow-purple { box-shadow: var(--glow-purple); }
.glow-pink { box-shadow: var(--glow-pink); }

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

.hidden { display: none !important; }
.invisible { visibility: hidden; }

.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

.select-none { user-select: none; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.z-10 { z-index: 10; }
.z-50 { z-index: 50; }
.z-100 { z-index: 100; }

/* ============================================
   7. FORM ELEMENTS RESET
   ============================================ */
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

input:focus, textarea:focus, select:focus {
  outline: none;
}

/* ============================================
   8. SELECTION
   ============================================ */
::selection {
  background: var(--accent-blue);
  color: white;
}

::-moz-selection {
  background: var(--accent-blue);
  color: white;
}

/* ============================================
   9. RESPONSIVE BREAKPOINTS HELPER
   ============================================ */
@media (max-width: 1024px) {
  .hide-tablet { display: none !important; }
}

@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
}

@media (min-width: 769px) {
  .show-mobile-only { display: none !important; }
}

/* ============================================
   10. ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus visible (klavye navigasyonu) */
:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}