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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background: #ffffff;
}

/* Variáveis CSS */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #f59e0b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-accent: #eff6ff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* Utilitários */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header e Navegação */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.highlight {
    color: var(--primary-color);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0.2rem;
    left: 0;
    right: 0;
    height: 0.5rem;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    opacity: 0.3;
    border-radius: var(--radius-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.stat {
    text-align: center;
}

.stat strong {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat span {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-md);
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.image-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: white;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--success-color);
    box-shadow: var(--shadow-md);
}

/* Donation Section */
.donation-section {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.donation-form-container {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.suggested-amounts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.amount-btn {
    background: white;
    border: 2px solid var(--border-color);
    padding: 1rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.amount-btn:hover,
.amount-btn.active {
    border-color: var(--primary-color);
    background: var(--bg-accent);
    color: var(--primary-color);
}

.custom-btn {
    background: var(--bg-accent);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.custom-amount {
    margin-bottom: 2rem;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-prefix {
    position: absolute;
    left: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    z-index: 1;
}

.input-group input {
    width: 100%;
    padding: 1rem 1rem 1rem 2.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
    font-weight: 600;
    transition: border-color 0.2s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-help {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.donation-impact {
    background: var(--bg-accent);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
}

.donation-impact h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.impact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.impact-item:last-child {
    margin-bottom: 0;
}

.impact-item i {
    color: var(--primary-color);
    width: 1.25rem;
}

.submit-btn {
    width: 100%;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.submit-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.security-info {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.security-badge {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
}

.security-badge i {
    color: var(--success-color);
    font-size: 1.5rem;
}

/* Error Alert */
.error-alert {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 1rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* About Section */
.about-section {
    padding: 5rem 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-text > p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.mission-points {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.point {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.point i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.point h4 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.point p {
    color: var(--text-secondary);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* Footer */
.main-footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: #d1d5db;
}

.security-badges {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #d1d5db;
}

.badge i {
    color: var(--success-color);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 2rem 0;
    border-top: 1px solid #374151;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #9ca3af;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: white;
}

/* QR Code Page */
.qr-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    padding: 2rem;
}

.qr-container {
    max-width: 800px;
    margin: 0 auto;
}

.qr-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.back-btn {
    background: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.back-btn:hover {
    background: var(--bg-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.qr-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.test-warning {
    background: #fef3c7;
    border: 1px solid #fbbf24;
    color: #92400e;
    padding: 1rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.test-warning i {
    margin-top: 0.125rem;
}

.qr-content {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.animal-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.animal-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.2);
}

.hero-text h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.hero-text p {
    opacity: 0.9;
}

.payment-section {
    padding: 2rem;
}

.payment-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.payment-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.payment-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.qr-display {
    text-align: center;
    margin-bottom: 2rem;
}

.qr-display #qrcode {
    margin: 0 auto 1rem;
    padding: 1rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: inline-block;
    min-height: 240px;
    min-width: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-display #qrcode canvas {
    border-radius: var(--radius-md);
}

.qr-display p {
    color: var(--text-secondary);
    font-weight: 500;
}

.pix-code-section {
    margin-bottom: 2rem;
}

.pix-code-section label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.pix-code {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
    font-family: monospace;
    font-size: 0.875rem;
    word-break: break-all;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pix-code:hover {
    border-color: var(--primary-color);
    background: var(--bg-accent);
}

.pix-code i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.transaction-details {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
}

.transaction-details h4 {
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.detail-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.detail-item span:first-child {
    color: var(--text-secondary);
}

.detail-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

.detail-item code {
    background: white;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.status.pending {
    background: #fef3c7;
    color: #92400e;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 6rem 1rem 3rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .section-container {
        padding: 0 1rem;
    }
    
    .donation-form-container {
        padding: 1.5rem;
    }
    
    .suggested-amounts {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .qr-page {
        padding: 1rem;
    }
    
    .qr-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .animal-hero {
        flex-direction: column;
        text-align: center;
    }
    
    .payment-section {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .suggested-amounts {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.hero-content,
.donation-form-container,
.about-content {
    animation: fadeInUp 0.6s ease-out;
}

.cta-button:hover {
    animation: pulse 0.3s ease-in-out;
}

/* Estados de Loading */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

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



.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    resize: vertical;
    min-height: 80px;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}




/* Notificações de Doação */
#donation-notifications {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 9999;
    max-width: 350px;
    width: 100%;
}

.donation-notification {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    margin-bottom: 1rem;
    border-left: 4px solid var(--success-color);
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
}

.donation-notification.show {
    opacity: 1;
    transform: translateX(0);
}

.donation-notification.hide {
    opacity: 0;
    transform: translateX(100%);
}

.notification-content {
    display: flex;
    align-items: center;
    padding: 1rem;
    gap: 0.75rem;
}

.notification-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--success-color), #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    flex-shrink: 0;
}

.notification-text {
    flex: 1;
    font-size: 0.875rem;
    line-height: 1.4;
    color: var(--text-primary);
}

.notification-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

.notification-text .amount {
    color: var(--success-color);
    font-weight: 700;
}

.notification-close {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-light);
    font-size: 0.75rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.notification-close:hover {
    background: var(--border-color);
    color: var(--text-secondary);
}

/* Responsividade para notificações */
@media (max-width: 768px) {
    #donation-notifications {
        right: 10px;
        left: 10px;
        max-width: none;
        top: 80px;
    }
    
    .notification-content {
        padding: 0.75rem;
    }
    
    .notification-icon {
        width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }
    
    .notification-text {
        font-size: 0.8rem;
    }
}

/* Animação de pulso para o ícone */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.notification-icon {
    animation: pulse 2s infinite;
}