/* ================================================================
   DIA DE SORTE — Design System
   Premium dark theme with glassmorphism, gradients, and micro-animations
   ================================================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800;900&display=swap');

:root {
    /* Primary palette */
    --primary: #4F46E5;
    --primary-light: #6366F1;
    --primary-dark: #3730A3;
    --primary-glow: rgba(79, 70, 229, 0.15);
    
    /* Secondary (success/green) */
    --secondary: #10B981;
    --secondary-light: #34D399;
    --secondary-dark: #047857;
    
    /* Accent (gold/prize) */
    --accent: #F59E0B;
    --accent-light: #FBBF24;
    --accent-dark: #B45309;
    
    /* Danger */
    --danger: #EF4444;
    --danger-light: #F87171;
    
    /* Warning */
    --warning: #F59E0B;
    --warning-light: #FBBF24;
    
    /* Backgrounds */
    --bg-primary: #F1F5F9;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #E2E8F0;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F8FAFC;
    --bg-glass: rgba(255, 255, 255, 0.7);
    
    /* Text */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --text-inverse: #FFFFFF;
    
    /* Borders */
    --border-color: #E2E8F0;
    --border-hover: #CBD5E1;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
    --shadow-glow: 0 10px 25px -5px rgba(79, 70, 229, 0.1);
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Outfit', 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
}

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

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated background gradient */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 0%, rgba(79, 70, 229, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

img {
    max-width: 100%;
    height: auto;
}

/* ================================================================
   Typography
   ================================================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; font-weight: 800; }
h2 { font-size: 2rem; font-weight: 700; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

.text-muted { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-success { color: var(--secondary); }
.text-danger { color: var(--danger); }
.text-center { text-align: center; }

/* ================================================================
   Layout
   ================================================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    position: relative;
    z-index: 1;
}

.container-sm { max-width: 680px; }
.container-lg { max-width: 1400px; }

.page-content {
    padding: var(--space-2xl) 0;
    min-height: calc(100vh - 160px);
}

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

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

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

/* ================================================================
   Navbar
   ================================================================ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #FFFFFF; /* Pure White background for contrast header */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-md) 0;
    box-shadow: var(--shadow-sm);
}

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

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
}

.navbar-brand .brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
}

.navbar-nav a {
    color: var(--text-secondary); /* slate-gray color */
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    position: relative;
}

.navbar-nav a:hover,
.navbar-nav a.active {
    color: var(--primary); /* Hover and active colors in indigo */
}

.navbar-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-normal);
    border-radius: 1px;
}

.navbar-nav a:hover::after,
.navbar-nav a.active::after {
    width: 100%;
}

/* Mobile menu toggle */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-xs);
}

@media (max-width: 768px) {
    .navbar-toggle { display: block; }
    .navbar-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        padding: var(--space-md);
        gap: var(--space-md);
    }
    .navbar-nav.active { display: flex; }
}

/* ================================================================
   Cards (Glassmorphism)
   ================================================================ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
}

.card-body { flex: 1; }

.card-footer {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-color);
}

/* ================================================================
   Buttons
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 10px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::after {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #FFFFFF !important;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.3);
    color: #FFFFFF !important;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.btn-success {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--text-inverse);
}

.btn-success:hover {
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.3);
    color: var(--text-inverse);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #e8384f);
    color: white;
}

.btn-danger:hover {
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.3);
    color: white;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--text-inverse);
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.2);
}

.btn-accent:hover {
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.3);
    color: var(--text-inverse);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary-light);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.1rem;
    border-radius: var(--radius-md);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ================================================================
   Forms
   ================================================================ */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-hint {
    margin-top: var(--space-xs);
    font-size: 0.8rem;
    color: var(--text-muted);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238B949E' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* ================================================================
   Number Ball Selector (Checkout)
   ================================================================ */
.number-grid {
    display: grid;
    grid-template-columns: repeat(10, 44px);
    justify-content: space-between;
    width: 100%;
    max-width: 100%;
}

@media (max-width: 500px) {
    .number-grid {
        grid-template-columns: repeat(6, 44px);
        justify-content: space-between;
        width: 100%;
    }
}

.number-ball {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    border: 2px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    user-select: none;
    position: relative;
}

.number-ball:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    transform: scale(1.1);
}

.number-ball.selected {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: var(--primary);
    color: white;
    box-shadow: 0 0 12px var(--primary-glow);
    transform: scale(1.1);
    animation: ballSelect 0.3s ease;
}

.number-ball.disabled {
    background: #F8FAFC;
    border-color: #F1F5F9;
    color: #CBD5E1;
    cursor: not-allowed;
    pointer-events: none;
}

@keyframes ballSelect {
    0% { transform: scale(1); }
    50% { transform: scale(1.25); }
    100% { transform: scale(1.1); }
}

/* Numbers display (in ranking/dashboard) */
.numbers-display {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.number-badge {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.number-badge.acertado {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    border-color: var(--secondary);
    color: var(--text-inverse);
    box-shadow: 0 2px 5px rgba(16, 185, 129, 0.4);
}

.number-badge.sorteado {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-color: var(--accent);
    color: var(--text-inverse);
}

/* ================================================================
   Ranking / Leaderboard
   ================================================================ */
.ranking-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.ranking-item:hover {
    background: var(--bg-card-hover);
}

.ranking-item.top-1 {
    border-color: var(--accent);
    background: rgba(255, 215, 0, 0.05);
}

.ranking-item.top-2 {
    border-color: #C0C0C0;
    background: rgba(192, 192, 192, 0.03);
}

.ranking-item.top-3 {
    border-color: #CD7F32;
    background: rgba(205, 127, 50, 0.03);
}

.ranking-position {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    flex-shrink: 0;
}

.ranking-item.top-1 .ranking-position {
    background: linear-gradient(135deg, var(--accent), #FFA500);
    color: var(--text-inverse);
    box-shadow: 0 0 12px rgba(255, 215, 0, 0.3);
}

.ranking-item.top-2 .ranking-position {
    background: linear-gradient(135deg, #E8E8E8, #A0A0A0);
    color: var(--text-inverse);
}

.ranking-item.top-3 .ranking-position {
    background: linear-gradient(135deg, #CD7F32, #A0522D);
    color: white;
}

.ranking-info {
    flex: 1;
    min-width: 0;
}

.ranking-name {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.ranking-code {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: monospace;
}

.ranking-score {
    text-align: right;
    flex-shrink: 0;
}

.ranking-score-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
}

.ranking-score-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Progress bar */
.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
    margin-top: var(--space-xs);
}

.progress-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width var(--transition-slow);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 20px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3));
    animation: shimmer 1.5s ease infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

/* ================================================================
   Status Badges
   ================================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-novo {
    background: rgba(108, 99, 255, 0.15);
    color: var(--primary-light);
    border: 1px solid rgba(108, 99, 255, 0.3);
}

.status-andamento {
    background: rgba(0, 212, 170, 0.15);
    color: var(--secondary);
    border: 1px solid rgba(0, 212, 170, 0.3);
}

.status-finalizado {
    background: rgba(139, 148, 158, 0.15);
    color: var(--text-secondary);
    border: 1px solid rgba(139, 148, 158, 0.3);
}

.status-pendente {
    background: rgba(255, 165, 2, 0.15);
    color: var(--warning);
    border: 1px solid rgba(255, 165, 2, 0.3);
}

.status-aprovado {
    background: rgba(0, 212, 170, 0.15);
    color: var(--secondary);
    border: 1px solid rgba(0, 212, 170, 0.3);
}

.status-rejeitado {
    background: rgba(255, 71, 87, 0.15);
    color: var(--danger);
    border: 1px solid rgba(255, 71, 87, 0.3);
}

/* ================================================================
   Tables (Admin)
   ================================================================ */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
}

table thead {
    background: var(--bg-tertiary);
}

table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

table td {
    padding: 12px 16px;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

table tbody tr {
    transition: background var(--transition-fast);
}

table tbody tr:hover {
    background: var(--bg-card-hover);
}

table tbody tr:last-child td {
    border-bottom: none;
}

/* ================================================================
   Flash Messages / Alerts
   ================================================================ */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-success {
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    color: var(--secondary);
}

.alert-warning {
    background: rgba(255, 165, 2, 0.1);
    border: 1px solid rgba(255, 165, 2, 0.3);
    color: var(--warning);
}

.alert-danger {
    background: rgba(255, 71, 87, 0.1);
    border: 1px solid rgba(255, 71, 87, 0.3);
    color: var(--danger);
}

.alert-info {
    background: rgba(108, 99, 255, 0.1);
    border: 1px solid rgba(108, 99, 255, 0.3);
    color: var(--primary-light);
}

/* ================================================================
   Stats Cards (Dashboard)
   ================================================================ */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    backdrop-filter: blur(12px);
    text-align: center;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto var(--space-md);
}

.stat-icon.purple { background: rgba(108, 99, 255, 0.15); }
.stat-icon.green { background: rgba(0, 212, 170, 0.15); }
.stat-icon.gold { background: rgba(255, 215, 0, 0.15); }
.stat-icon.red { background: rgba(255, 71, 87, 0.15); }

.stat-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ================================================================
   Hero Section (Home)
   ================================================================ */
.hero {
    text-align: center;
    padding: var(--space-3xl) 0;
    position: relative;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: var(--space-md);
    line-height: 1.1;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.hero-balls {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-ball {
    position: absolute;
    border-radius: 50%;
    opacity: 0.08;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

/* ================================================================
   Group Card (Catalog)
   ================================================================ */
.grupo-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    backdrop-filter: blur(12px);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.grupo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: var(--primary);
}

.grupo-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.grupo-card-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.grupo-card-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.grupo-card-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.grupo-card-price {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
    margin: var(--space-md) 0;
}

.grupo-card-price small {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* ================================================================
   Winner Celebration
   ================================================================ */
.winner-card {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), rgba(255, 165, 0, 0.05));
    border: 2px solid var(--accent);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.winner-card::before {
    content: '🏆';
    position: absolute;
    top: -20px;
    right: -20px;
    font-size: 8rem;
    opacity: 0.1;
}

.winner-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent);
    margin-bottom: var(--space-md);
}

/* ================================================================
   Footer
   ================================================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--space-xl) 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}

/* ================================================================
   Empty State
   ================================================================ */
.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-md);
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-md);
    opacity: 0.3;
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

/* ================================================================
   Modals
   ================================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    max-width: 500px;
    width: 100%;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--danger);
    color: white;
}

/* ================================================================
   Utility classes
   ================================================================ */
.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); }

.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }

.w-100 { width: 100%; }
.d-none { display: none; }
.d-block { display: block; }

/* ================================================================
   Responsive
   ================================================================ */
@media (max-width: 768px) {
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
    
    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    
    .container { padding: 0 var(--space-md); }
    .page-content { padding: var(--space-lg) 0; }
    
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .stat-value { font-size: 1.5rem; }
    
    .ranking-item {
        flex-wrap: wrap;
    }
    
    .numbers-display {
        width: 100%;
        margin-top: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .number-grid {
        grid-template-columns: repeat(6, 38px);
        justify-content: space-between;
        width: 100%;
        gap: 4px;
    }
    
    .number-ball {
        width: 38px;
        height: 38px;
        font-size: 0.75rem;
    }
}

/* ================================================================
   Loading Spinner
   ================================================================ */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(13, 17, 23, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ================================================================
   Animations
   ================================================================ */
.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-up {
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Staggered animation for lists */
.stagger > * {
    opacity: 0;
    animation: fadeIn 0.4s ease forwards;
}

.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.15s; }
.stagger > *:nth-child(4) { animation-delay: 0.2s; }
.stagger > *:nth-child(5) { animation-delay: 0.25s; }
.stagger > *:nth-child(6) { animation-delay: 0.3s; }
.stagger > *:nth-child(7) { animation-delay: 0.35s; }
.stagger > *:nth-child(8) { animation-delay: 0.4s; }
.stagger > *:nth-child(9) { animation-delay: 0.45s; }
.stagger > *:nth-child(10) { animation-delay: 0.5s; }

/* ================================================================
   Login – Cadastre-se highlight
   ================================================================ */
.login-cadastre-link {
    display: inline-block;
    font-size: 1.05rem;
    font-weight: 700;
    color: white !important;
    background: var(--primary);
    padding: 6px 18px;
    border-radius: 20px;
    text-decoration: none;
    border: none;
    transition: all var(--transition-normal);
}

.login-cadastre-link:hover {
    background: var(--primary);
    color: white !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}