/* =============================================================================
   MODERN UI DESIGN SYSTEM - PART OF COSMOS
   A comprehensive design system for cosmic-themed interfaces
   ============================================================================= */

/* === CSS CUSTOM PROPERTIES (Design Tokens) === */
:root {
    /* Color Palette */
    --cosmos-black: #000000;
    --cosmos-dark: #050510;
    --cosmos-card-bg: #0F0F1A;
    --cosmos-card-hover: #1A1A2E;
    --cosmos-accent: #00e5ff;
    --cosmos-accent-bright: #00f0ff;
    --cosmos-accent-dim: #00b8cc;
    --cosmos-secondary: #ff0080;
    --cosmos-gold: #FFD700;
    --cosmos-purple: #9d4edd;
    --cosmos-green: #48bb78;
    --cosmos-blue: #60a5fa;

    /* Glass Effect Colors */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-hover-bg: rgba(255, 255, 255, 0.08);
    --glass-hover-border: rgba(255, 255, 255, 0.2);

    /* Text Colors */
    --text-white: #ffffff;
    --text-light: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dim: #64748b;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 15px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.4);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.5);

    /* Glow Effects */
    --glow-accent: 0 0 20px rgba(0, 229, 255, 0.3);
    --glow-accent-strong: 0 0 30px rgba(0, 229, 255, 0.5);
    --glow-secondary: 0 0 20px rgba(255, 0, 128, 0.3);
    --glow-gold: 0 0 20px rgba(255, 215, 0, 0.3);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-cubic: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Typography */
    --font-sans: 'Rajdhani', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Share Tech Mono', 'Courier New', monospace;

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

    /* Z-index Layers */
    --z-base: 1;
    --z-dropdown: 10;
    --z-sticky: 50;
    --z-modal: 100;
    --z-tooltip: 200;
}

/* === MODERN CARD COMPONENTS === */

/* Base Card */
.modern-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-cubic);
    position: relative;
    overflow: hidden;
}

/* Card Elevations */
.modern-card-elevated {
    box-shadow: var(--shadow-md), var(--glow-accent);
}

.modern-card-floating {
    box-shadow: var(--shadow-lg), var(--glow-accent-strong);
}

/* Card Hover Effects */
.modern-card-hover:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--cosmos-accent);
    background: var(--glass-hover-bg);
    box-shadow: var(--shadow-xl), var(--glow-accent-strong);
}

/* Card with Gradient Border */
.modern-card-gradient {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
}

.modern-card-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, var(--cosmos-accent), var(--cosmos-secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.5;
    transition: opacity var(--transition-base);
}

.modern-card-gradient:hover::before {
    opacity: 1;
}

/* === ANIMATION LIBRARY === */

/* Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

/* Slide Up */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-slide-up {
    animation: slideUp var(--transition-slow) ease-out;
}

/* Slide In From Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-slide-left {
    animation: slideInLeft var(--transition-slow) ease-out;
}

/* Scale In */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-scale-in {
    animation: scaleIn var(--transition-slow) ease-out;
}

/* Pulse Glow */
@keyframes pulseGlow {

    0%,
    100% {
        box-shadow: var(--glow-accent);
    }

    50% {
        box-shadow: var(--glow-accent-strong);
    }
}

.animate-pulse-glow {
    animation: pulseGlow 2s ease-in-out infinite;
}

/* Stagger Animation Delays */
.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

.delay-600 {
    animation-delay: 0.6s;
}

/* === MODERN BUTTON STYLES === */

.modern-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    letter-spacing: 0.5px;
}

/* Primary Button */
.modern-btn-primary {
    background: linear-gradient(135deg, var(--cosmos-accent), var(--cosmos-blue));
    color: var(--cosmos-black);
    box-shadow: var(--shadow-md), var(--glow-accent);
}

.modern-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--glow-accent-strong);
    background: linear-gradient(135deg, var(--cosmos-accent-bright), var(--cosmos-blue));
}

/* Secondary Button */
.modern-btn-secondary {
    background: linear-gradient(135deg, var(--cosmos-secondary), var(--cosmos-purple));
    color: var(--text-white);
    box-shadow: var(--shadow-md), var(--glow-secondary);
}

.modern-btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--glow-secondary);
}

/* Outline Button */
.modern-btn-outline {
    background: transparent;
    border: 2px solid var(--cosmos-accent);
    color: var(--cosmos-accent);
}

.modern-btn-outline:hover {
    background: var(--cosmos-accent);
    color: var(--cosmos-black);
    transform: translateY(-2px);
    box-shadow: var(--glow-accent);
}

/* Ghost Button */
.modern-btn-ghost {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
}

.modern-btn-ghost:hover {
    background: var(--glass-hover-bg);
    border-color: var(--cosmos-accent);
    color: var(--cosmos-accent);
}

/* === ENHANCED GLASSMORPHISM === */

.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(10px) saturate(180%);
    -webkit-backdrop-filter: blur(10px) saturate(180%);
    border: 1px solid var(--glass-border);
}

.glass-effect-strong {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px) saturate(200%);
    -webkit-backdrop-filter: blur(20px) saturate(200%);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.glass-effect:hover {
    background: var(--glass-hover-bg);
    border-color: var(--glass-hover-border);
}

/* === MODERN INPUT STYLES === */

.modern-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-white);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.modern-input:focus {
    outline: none;
    border-color: var(--cosmos-accent);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1), var(--glow-accent);
    background: rgba(0, 0, 0, 0.7);
}

.modern-input::placeholder {
    color: var(--text-dim);
}

/* === GRADIENT TEXT === */

.gradient-text {
    background: linear-gradient(90deg, var(--cosmos-accent), var(--text-white));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-accent {
    background: linear-gradient(135deg, var(--cosmos-accent), var(--cosmos-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-gold {
    background: linear-gradient(135deg, var(--cosmos-gold), #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === RESPONSIVE GRID SYSTEM === */

.modern-grid {
    display: grid;
    gap: var(--space-xl);
}

.modern-grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

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

.modern-grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

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

/* Spacing */
.spacing-tight {
    gap: var(--space-sm);
}

.spacing-normal {
    gap: var(--space-md);
}

.spacing-relaxed {
    gap: var(--space-lg);
}

.spacing-loose {
    gap: var(--space-xl);
}

/* Text Alignment */
.text-center {
    text-align: center;
}

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

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

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

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

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

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

/* Smooth Transitions */
.transition-all {
    transition: all var(--transition-base);
}

.transition-transform {
    transition: transform var(--transition-base);
}

/* Hover Lift Effect */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

/* === RESPONSIVE BREAKPOINTS === */

@media (max-width: 768px) {
    :root {
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --font-size-3xl: 1.5rem;
        --font-size-4xl: 1.875rem;
    }

    .modern-grid-2,
    .modern-grid-3,
    .modern-grid-4 {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .modern-card {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .modern-card {
        padding: var(--space-md);
    }

    .modern-btn {
        padding: 10px 20px;
        font-size: var(--font-size-sm);
    }
}

/* === ACCESSIBILITY === */

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid var(--cosmos-accent);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* === SPECIAL EFFECTS === */

/* Shimmer Effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }

    100% {
        background-position: 1000px 0;
    }
}

.shimmer-effect {
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(255, 255, 255, 0.1) 50%,
            transparent 100%);
    background-size: 1000px 100%;
    animation: shimmer 3s infinite;
}

/* Floating Animation */
@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* === PREMIUM CARD VARIANTS === */

.premium-card {
    position: relative;
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.1), rgba(0, 229, 255, 0.1));
    backdrop-filter: blur(15px);
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    overflow: hidden;
}

.premium-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: linear-gradient(135deg, var(--cosmos-secondary), var(--cosmos-accent));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

.premium-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(255, 0, 128, 0.3), 0 0 50px rgba(0, 229, 255, 0.3);
}