/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores principais - Paleta tecnológica e juvenil */
    --primary-cyan: #00D4FF;
    --primary-purple: #8B5CF6;
    --primary-green: #10B981;
    --primary-pink: #F472B6;
    --primary-orange: #F59E0B;
    
    /* Cores de fundo */
    --bg-dark: #0F0F23;
    --bg-card: #1A1A2E;
    --bg-glass: rgba(26, 26, 46, 0.8);
    
    /* Cores de texto */
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1AA;
    --text-accent: var(--primary-cyan);
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    --gradient-secondary: linear-gradient(135deg, var(--primary-green), var(--primary-cyan));
    --gradient-accent: linear-gradient(135deg, var(--primary-pink), var(--primary-orange));
    
    /* Sombras */
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-button: 0 4px 15px rgba(0, 212, 255, 0.4);
    
    /* Bordas */
    --border-radius: 16px;
    --border-radius-small: 8px;
    
    /* Transições */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Background animado */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundPulse 10s ease-in-out infinite alternate;
}

@keyframes backgroundPulse {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-small);
    filter: drop-shadow(var(--shadow-glow));
}

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

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Botões */
.btn-secondary {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-small);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background: var(--primary-cyan);
    border-color: var(--primary-cyan);
    box-shadow: var(--shadow-button);
    transform: translateY(-2px);
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Seções */
section {
    margin-bottom: 3rem;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Income Section */
.input-group {
    max-width: 400px;
    margin: 0 auto;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-accent);
}

.input-group input {
    width: 100%;
    padding: 1rem;
    background: var(--bg-card);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-small);
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-cyan);
    box-shadow: var(--shadow-glow);
}

/* Distribution Cards */
.distribution-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.distribution-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.distribution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.distribution-card.viver::before {
    background: var(--gradient-primary);
}

.distribution-card.investir::before {
    background: var(--gradient-secondary);
}

.distribution-card.aprender::before {
    background: var(--gradient-accent);
}

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

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.card-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.card-value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Expenses Grid */
.expenses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.expense-category {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.expense-category:hover {
    transform: translateY(-4px);
    border-color: var(--primary-cyan);
    box-shadow: var(--shadow-card);
}

.category-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    border-radius: var(--border-radius-small);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.expense-category h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-accent);
}

.expense-input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-small);
    color: var(--text-primary);
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
}

.expense-input:focus {
    outline: none;
    border-color: var(--primary-cyan);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.summary-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.summary-card h4 {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.summary-value {
    font-size: 1.8rem;
    font-weight: 700;
}

.summary-value.positive {
    color: var(--primary-green);
}

.summary-value.negative {
    color: var(--primary-pink);
}

/* Progress Bar */
.progress-section {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
}

.progress-section h4 {
    margin-bottom: 1rem;
    color: var(--text-accent);
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--bg-dark);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 6px;
    transition: width 0.5s ease;
    width: 0%;
}

.progress-text {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
}

/* Responsividade */
@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .header-content {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .distribution-cards {
        grid-template-columns: 1fr;
    }
    
    .expenses-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }
    
    .summary-cards {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .app-title {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .expenses-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .category-icon {
        width: 48px;
        height: 48px;
    }
    
    .distribution-card {
        padding: 1.5rem;
    }
    
    .card-value {
        font-size: 1.5rem;
    }
}

/* Animações */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.distribution-card,
.expense-category,
.summary-card {
    animation: fadeInUp 0.6s ease-out;
}

.distribution-card:nth-child(1) { animation-delay: 0.1s; }
.distribution-card:nth-child(2) { animation-delay: 0.2s; }
.distribution-card:nth-child(3) { animation-delay: 0.3s; }

/* PWA Styles */
@media (display-mode: standalone) {
    .header {
        padding-top: env(safe-area-inset-top);
    }
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--primary-cyan);
    border-radius: 4px;
}

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