/**
 * XAVI PROTOCOL Design System
 * Premium UI/UX for Agent Xavi's dApp Ecosystem
 * Version: 2.0.0
 */

/* ============================================
   IMPORTS
   ============================================ */
@import url('https://api.fontshare.com/v2/css?f[]=clash-display@400,500,600,700&f[]=satoshi@400,500,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
    /* Purple Palette - Extracted from Mascot */
    --xavi-purple-deep: #4A1259;
    --xavi-purple-primary: #7B2D8E;
    --xavi-purple-mid: #9B4DCA;
    --xavi-purple-light: #C084FC;
    --xavi-purple-glow: #D8B4FE;
    
    /* Gold Accent - From Coffee Cup */
    --xavi-gold: #D4A039;
    --xavi-gold-light: #F5D78E;
    --xavi-gold-glow: rgba(212, 160, 57, 0.4);
    
    /* Neutrals - Purple-Tinted */
    --xavi-black: #0A0A0F;
    --xavi-charcoal: #13111C;
    --xavi-surface: #1A1726;
    --xavi-elevated: #221E30;
    --xavi-border: #2D2640;
    --xavi-border-light: #3D3555;
    
    /* Text Colors */
    --xavi-white: #F8F6FF;
    --xavi-muted: #9B95B0;
    --xavi-dim: #6B6280;
    
    /* Status Colors */
    --xavi-success: #34D399;
    --xavi-success-glow: rgba(52, 211, 153, 0.2);
    --xavi-danger: #F87171;
    --xavi-danger-glow: rgba(248, 113, 113, 0.2);
    --xavi-warning: #FBBF24;
    --xavi-warning-glow: rgba(251, 191, 36, 0.2);
    
    /* Typography */
    --font-display: 'Clash Display', sans-serif;
    --font-body: 'Satoshi', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing Scale */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(74, 18, 89, 0.1);
    --shadow-md: 0 8px 24px rgba(74, 18, 89, 0.15);
    --shadow-lg: 0 20px 60px rgba(123, 45, 142, 0.2);
    --shadow-glow: 0 0 40px rgba(123, 45, 142, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--xavi-white);
    background-color: var(--xavi-black);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================
   BACKGROUND TREATMENT
   ============================================ */
.xavi-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -10;
}

.xavi-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--xavi-black);
}

.xavi-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.xavi-bg-gradient {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -9;
    background: 
        radial-gradient(ellipse 80% 50% at 80% 10%, rgba(74, 18, 89, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 20% 90%, rgba(123, 45, 142, 0.1) 0%, transparent 50%);
}

/* Floating Orb Animation */
.xavi-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.03;
    pointer-events: none;
    z-index: -8;
    animation: float-orb 20s ease-in-out infinite;
}

.xavi-orb-1 {
    width: 400px;
    height: 400px;
    background: var(--xavi-purple-primary);
    top: 10%;
    right: 10%;
}

.xavi-orb-2 {
    width: 300px;
    height: 300px;
    background: var(--xavi-purple-mid);
    bottom: 20%;
    left: 5%;
    animation-delay: -10s;
}

@keyframes float-orb {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(20px, -30px); }
    50% { transform: translate(-10px, 20px); }
    75% { transform: translate(-30px, -10px); }
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--xavi-white);
}

h1 {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 700;
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(28px, 4vw, 42px);
    letter-spacing: -0.02em;
}

h3 {
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 500;
}

h4 {
    font-size: 20px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--xavi-purple-light) 0%, var(--xavi-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gold {
    color: var(--xavi-gold);
}

.text-purple {
    color: var(--xavi-purple-light);
}

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

.text-dim {
    color: var(--xavi-dim);
}

.eyebrow {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--xavi-gold);
}

.label {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mono {
    font-family: var(--font-mono);
}

/* ============================================
   CARDS (Glassmorphism)
   ============================================ */
.xavi-card {
    background: linear-gradient(135deg, rgba(26, 23, 38, 0.8), rgba(19, 17, 28, 0.95));
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(123, 45, 142, 0.15);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-smooth);
}

.xavi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(155, 77, 202, 0.5), transparent);
}

.xavi-card:hover {
    border-color: rgba(123, 45, 142, 0.4);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.xavi-card-flat {
    background: var(--xavi-charcoal);
    border: 1px solid var(--xavi-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 15px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--xavi-gold), #C4902A);
    color: var(--xavi-black);
    box-shadow: 0 4px 20px var(--xavi-gold-glow);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 8px 30px rgba(212, 160, 57, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--xavi-purple-light);
    border: 1px solid rgba(155, 77, 202, 0.4);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(155, 77, 202, 0.1);
    border-color: var(--xavi-purple-light);
}

.btn-ghost {
    background: transparent;
    color: var(--xavi-muted);
    padding: 10px 16px;
}

.btn-ghost:hover {
    color: var(--xavi-white);
    background: rgba(155, 77, 202, 0.1);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 16px;
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ============================================
   ICON CONTAINERS
   ============================================ */
.icon-box {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(123, 45, 142, 0.1);
    border: 1px solid rgba(123, 45, 142, 0.2);
    border-radius: 14px;
    transition: all var(--transition-normal);
}

.icon-box svg {
    width: 24px;
    height: 24px;
    stroke: var(--xavi-purple-light);
    stroke-width: 1.5;
    fill: none;
}

.icon-box-sm {
    width: 40px;
    height: 40px;
}

.icon-box-sm svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   BADGES & PILLS
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-live {
    background: var(--xavi-success-glow);
    color: var(--xavi-success);
}

.badge-live::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--xavi-success);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

.badge-featured {
    background: rgba(212, 160, 57, 0.15);
    color: var(--xavi-gold);
}

.badge-featured::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--xavi-gold);
    border-radius: 50%;
}

.badge-building {
    background: rgba(155, 77, 202, 0.15);
    color: var(--xavi-purple-light);
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 8px 16px;
    background: var(--xavi-surface);
    border: 1px solid var(--xavi-border);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--xavi-muted);
}

.pill-copy {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pill-copy:hover {
    border-color: var(--xavi-purple-mid);
    color: var(--xavi-white);
}

/* ============================================
   FORM INPUTS
   ============================================ */
.input {
    width: 100%;
    padding: 16px 20px;
    background: var(--xavi-charcoal);
    border: 2px solid var(--xavi-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--xavi-white);
    transition: all var(--transition-fast);
}

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

.input:focus {
    outline: none;
    border-color: var(--xavi-purple-mid);
    box-shadow: 0 0 0 4px rgba(155, 77, 202, 0.15);
}

.input-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--xavi-muted);
    margin-bottom: var(--space-sm);
}

.input-hint {
    font-size: 13px;
    color: var(--xavi-dim);
    margin-top: var(--space-xs);
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    display: flex;
    align-items: center;
    padding: 0 var(--space-lg);
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(123, 45, 142, 0.1);
    z-index: 1000;
}

.navbar-inner {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.navbar-logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.navbar-logo span {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 20px;
    color: var(--xavi-white);
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.navbar-link {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--xavi-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.navbar-link:hover,
.navbar-link.active {
    color: var(--xavi-white);
}

.navbar-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--xavi-gold);
    border-radius: 1px;
}

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--xavi-charcoal);
    border: 1px solid var(--xavi-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.stat-item {
    padding: var(--space-lg) var(--space-xl);
    text-align: center;
    border-right: 1px solid var(--xavi-border);
}

.stat-item:last-child {
    border-right: none;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--xavi-white);
}

.stat-label {
    font-size: 14px;
    color: var(--xavi-muted);
    margin-top: 4px;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes pulse-ring {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(1.4); opacity: 0; }
}

.animate-fade-in {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-fade-in-delay-1 {
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.animate-fade-in-delay-2 {
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.animate-fade-in-delay-3 {
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

/* ============================================
   LOADING STATES
   ============================================ */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.skeleton {
    background: linear-gradient(90deg, var(--xavi-charcoal) 0%, var(--xavi-surface) 50%, var(--xavi-charcoal) 100%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--xavi-elevated);
    border: 1px solid var(--xavi-border);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    opacity: 0;
    transition: all var(--transition-normal);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success { border-color: var(--xavi-success); }
.toast.error { border-color: var(--xavi-danger); }
.toast.warning { border-color: var(--xavi-warning); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-item:nth-child(2) {
        border-right: none;
    }
    
    .stat-item:nth-child(3) {
        border-top: 1px solid var(--xavi-border);
    }
    
    .stat-item:nth-child(4) {
        border-top: 1px solid var(--xavi-border);
    }
}

@media (max-width: 768px) {
    .navbar-links {
        display: none;
    }
    
    .stats-bar {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--xavi-border);
    }
    
    .stat-item:last-child {
        border-bottom: none;
    }
    
    .btn {
        width: 100%;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.grid { display: grid; }
.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: 1024px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

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

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

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

.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}