/**
 * Micro-Job Referrals - Main Stylesheet
 * Modern, clean, and stunning UI/UX
 */

/* CSS Variables */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --dark-lighter: #334155;
    --light: #f8fafc;
    --gray: #94a3b8;
    --gray-light: #cbd5e1;
    
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-dark: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    --gradient-card: linear-gradient(145deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.05) 100%);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--dark);
    color: var(--light);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated Background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.bg-animation::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.08) 0%, transparent 40%);
    animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, 2%) rotate(1deg); }
    66% { transform: translate(-1%, 1%) rotate(-1deg); }
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    padding: 24px 0;
    position: relative;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--light);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
    50% { transform: scale(1.05); box-shadow: 0 0 20px 10px rgba(99, 102, 241, 0); }
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.admin-link {
    padding: 10px 20px;
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-full);
    color: var(--gray);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: 60px 0;
    text-align: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: 24px;
    animation: fadeInDown 0.6s ease-out;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 40px;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Stats Bar */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    padding: 24px;
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-lg);
    margin-bottom: 60px;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.stat-item {
    text-align: center;
}

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

.stat-label {
    font-size: 0.875rem;
    color: var(--gray);
}

/* Referrals Grid */
.referrals-section {
    padding: 40px 0 80px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
}

.filter-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-full);
    color: var(--gray);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-tab:hover,
.filter-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Referral Cards Grid */
.referrals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.referral-card {
    position: relative;
    background: var(--gradient-card);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.referral-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.referral-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.referral-card:hover::before {
    transform: scaleX(1);
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    transition: var(--transition-bounce);
}

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

.card-badge {
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--light);
}

.card-description {
    font-size: 0.9375rem;
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--dark-lighter);
}

.card-clicks {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--gray);
}

.card-clicks svg {
    width: 16px;
    height: 16px;
    color: var(--primary-light);
}

.card-action {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
    transition: var(--transition);
}

.referral-card:hover .card-action {
    background: var(--secondary);
    transform: translateX(4px);
}

/* Tooltip */
.tooltip-trigger {
    position: relative;
}

.tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    width: 280px;
    padding: 16px;
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--dark-light);
}

.tooltip-trigger:hover .tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.tooltip-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--light);
}

.tooltip-text {
    font-size: 0.875rem;
    color: var(--gray);
    line-height: 1.6;
}

/* Detail Page */
.detail-hero {
    padding: 60px 0;
    text-align: center;
}

.detail-icon {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    margin: 0 auto 24px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.detail-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.detail-category {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: 24px;
}

.detail-description {
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 1.125rem;
    color: var(--gray);
    line-height: 1.8;
}

.detail-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    color: var(--light);
}

.btn-secondary:hover {
    background: var(--dark-lighter);
    transform: translateY(-3px);
}

/* Features Section */
.features {
    padding: 60px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 24px;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 16px;
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-text {
    font-size: 0.9375rem;
    color: var(--gray);
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--dark-lighter);
    text-align: center;
}

.footer-text {
    color: var(--gray);
    font-size: 0.875rem;
}

.footer-heart {
    color: var(--danger);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    padding: 16px 24px;
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.3s ease-out;
    max-width: 400px;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-warning { border-left: 4px solid var(--warning); }

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .stats-bar {
        gap: 24px;
    }
    
    .referrals-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .detail-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--dark-lighter);
    border-radius: var(--radius-full);
}

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

/* Selection */
::selection {
    background: var(--primary);
    color: white;
}