/**
* FINAL POLISH
* Final refinements and premium touches
* 2025/2026 Ultimate Polish
*/

/* ============================================
  ENHANCED COLOR SYSTEM
  ============================================ */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --error-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);

    --primary-glow: 0 0 20px rgba(102, 126, 234, 0.5);
    --secondary-glow: 0 0 20px rgba(118, 75, 162, 0.5);
}

/* ============================================
  ENHANCED SHADOWS
  ============================================ */
.shadow-premium {
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06),
        0 0 0 1px rgba(102, 126, 234, 0.05);
}

.shadow-premium-lg {
    box-shadow: 
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 10px 10px -5px rgba(0, 0, 0, 0.04),
        0 0 0 1px rgba(102, 126, 234, 0.1);
}

.shadow-glow {
    box-shadow: 
        0 0 20px rgba(102, 126, 234, 0.3),
        0 10px 40px rgba(0, 0, 0, 0.1);
}

/* ============================================
  ENHANCED BORDERS
  ============================================ */
.border-gradient {
    position: relative;
    border: 2px solid transparent;
    background-clip: padding-box;
}

.border-gradient::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    padding: 2px;
    background: var(--primary-gradient);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    z-index: -1;
}

/* ============================================
  ENHANCED BACKDROPS
  ============================================ */
.backdrop-premium {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

body.dark-mode .backdrop-premium {
    background: rgba(0, 0, 0, 0.7);
    border-color: rgba(255, 255, 255, 0.1);
}

/* ============================================
  ENHANCED SCROLLBAR
  ============================================ */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--background-color);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    border: 2px solid var(--background-color);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

body.dark-mode ::-webkit-scrollbar-track {
    background: var(--dark-background-color);
}

body.dark-mode ::-webkit-scrollbar-thumb {
    border-color: var(--dark-background-color);
}

/* ============================================
  ENHANCED SELECTION
  ============================================ */
::selection {
    background: rgba(102, 126, 234, 0.3);
    color: var(--text-color);
}

::-moz-selection {
    background: rgba(102, 126, 234, 0.3);
    color: var(--text-color);
}

/* ============================================
  ENHANCED FOCUS RINGS
  ============================================ */
.focus-ring-premium:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
    border-radius: 4px;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2);
}

/* ============================================
  ENHANCED TRANSITIONS
  ============================================ */
.transition-premium {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-smooth {
    transition: all 0.3s ease;
}

.transition-bounce {
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ============================================
  ENHANCED GRADIENTS
  ============================================ */
.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-bg {
    background: var(--primary-gradient);
}

.gradient-border {
    border-image: var(--primary-gradient) 1;
}

/* ============================================
  ENHANCED BLUR
  ============================================ */
.blur-premium {
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

.blur-light {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.blur-heavy {
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
}

/* ============================================
  ENHANCED OPACITY
  ============================================ */
.opacity-hover {
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.opacity-hover:hover {
    opacity: 1;
}

/* ============================================
  ENHANCED TRANSFORMS
  ============================================ */
.transform-hover {
    transition: transform 0.3s ease;
}

.transform-hover:hover {
    transform: translateY(-5px) scale(1.02);
}

.transform-rotate-hover {
    transition: transform 0.3s ease;
}

.transform-rotate-hover:hover {
    transform: rotate(5deg) scale(1.1);
}

/* ============================================
  ENHANCED Z-INDEX SYSTEM
  ============================================ */
:root {
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-notification: 1080;
}

/* ============================================
  ENHANCED SPACING
  ============================================ */
:root {
    --space-xs: 0.25rem;   /* 4px */
    --space-sm: 0.5rem;    /* 8px */
    --space-md: 1rem;      /* 16px */
    --space-lg: 1.5rem;    /* 24px */
    --space-xl: 2rem;      /* 32px */
    --space-2xl: 3rem;     /* 48px */
    --space-3xl: 4rem;     /* 64px */
    --space-4xl: 6rem;     /* 96px */
}

/* ============================================
  ENHANCED BORDER RADIUS
  ============================================ */
:root {
    --radius-sm: 0.25rem;   /* 4px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-2xl: 1.5rem;   /* 24px */
    --radius-full: 9999px;
}

/* ============================================
  ENHANCED UTILITIES
  ============================================ */
.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.text-shadow-lg {
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.bg-pattern {
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
}

.overflow-hidden {
    overflow: hidden;
}

.overflow-auto {
    overflow: auto;
}

.overflow-scroll {
    overflow: scroll;
}

/* ============================================
  RESPONSIVE DESIGN
  ============================================ */
@media (max-width: 768px) {
    .shadow-premium-lg {
        box-shadow: 
            0 10px 15px -3px rgba(0, 0, 0, 0.1),
            0 4px 6px -2px rgba(0, 0, 0, 0.05);
    }
}

/* ============================================
  ACCESSIBILITY
  ============================================ */
@media (prefers-reduced-motion: reduce) {
    .transition-premium,
    .transition-smooth,
    .transition-bounce,
    .transform-hover,
    .transform-rotate-hover {
        transition: none;
    }

    .transform-hover:hover,
    .transform-rotate-hover:hover {
        transform: none;
    }
}