/**
 * e-IPTU - Estilos principais
 * CSS 100% responsivo com design moderno
 * 
 * @section Estilos Base
 */

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

:root {
    /* Cores principais */
    --primary-color: #2E7D32;
    --primary-dark: #1B5E20;
    --primary-light: #4CAF50;
    --secondary-color: #FF9800;
    --background-color: #f8f9fa;
    --surface-color: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    
    /* Tipografia */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    
    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Bordas e sombras */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
}

/* Estilos base do corpo */
body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

/**
 * @section Página de Instalação
 */

.installation-page {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Cabeçalho */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-2xl) var(--spacing-md);
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.logo i {
    font-size: 2.5rem;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
}

.subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-top: var(--spacing-sm);
}

/* Conteúdo principal */
.main-content {
    flex: 1;
    padding: var(--spacing-2xl) var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.installation-card {
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.card-header {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xl);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.card-header i {
    font-size: 1.5rem;
}

.card-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.card-body {
    padding: var(--spacing-2xl);
}

.features-list {
    list-style: none;
    margin-bottom: var(--spacing-2xl);
}

.features-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.features-list li:last-child {
    border-bottom: none;
}

.features-list i {
    color: var(--primary-color);
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.instructions h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
}

.instruction-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.step-number {
    background: var(--primary-color);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.card-footer {
    padding: var(--spacing-xl);
    background: #f8f9fa;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/**
 * @section Página Pós-Instalação
 */

.installed-page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.success-message {
    text-align: center;
    background: var(--surface-color);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 100%;
}

.success-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.success-message h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-2xl);
}

.success-message p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

/**
 * @section Componentes de Botão
 */

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    min-height: 52px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #F57C00;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/**
 * @section Responsividade - Tablets
 */

@media (min-width: 768px) {
    .header {
        padding: var(--spacing-2xl);
    }
    
    .logo h1 {
        font-size: 2.5rem;
    }
    
    .logo i {
        font-size: 3rem;
    }
    
    .card-footer {
        flex-direction: row;
        justify-content: center;
    }
    
    .btn {
        min-width: 200px;
    }
    
    .action-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

/**
 * @section Responsividade - Desktop
 */

@media (min-width: 1024px) {
    .main-content {
        padding: var(--spacing-2xl);
    }
    
    .installation-card {
        margin: 0 auto;
    }
    
    .instruction-steps {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
        flex: 1;
    }
    
    .step-number {
        margin-bottom: var(--spacing-sm);
    }
}

/**
 * @section Responsividade - Mobile Pequeno
 */

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .logo {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .logo h1 {
        font-size: 1.75rem;
    }
    
    .card-body {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .features-list li {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .success-message {
        padding: var(--spacing-xl) var(--spacing-md);
    }
}

/**
 * @section Animações
 */

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

.installation-card,
.success-message {
    animation: fadeIn 0.6s ease-out;
}

/**
 * @section Estados de Loading
 */

.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/**
 * @section Acessibilidade
 */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Foco visível para navegação por teclado */
.btn:focus {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}