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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* Variáveis CSS para tema vermelho corporativo */
:root {
    --primary-red: #dc3545;
    --dark-red: #c82333;
    --light-red: #f8d7da;
    --accent-red: #721c24;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.2);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Container principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--dark-red) 100%);
    color: var(--white);
    padding: 2rem 0;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.header-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    margin: 2rem 0;
    transition: var(--transition);
    border: 1px solid rgba(220, 53, 69, 0.1);
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.card-header {
    border-bottom: 2px solid var(--primary-red);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.card-title {
    color: var(--primary-red);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Botões */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--dark-red) 100%);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--dark-red) 0%, var(--accent-red) 100%);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--dark-gray);
}

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}

/* Formulários */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-gray);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-control.error {
    border-color: var(--primary-red);
    background-color: var(--light-red);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Checkboxes customizados */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 10px 15px;
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: var(--white);
    min-width: 200px;
}

.checkbox-item:hover {
    border-color: var(--primary-red);
    background: rgba(220, 53, 69, 0.05);
}

.checkbox-item input[type="checkbox"] {
    margin-right: 10px;
    transform: scale(1.2);
    accent-color: var(--primary-red);
}

.checkbox-item.checked {
    border-color: var(--primary-red);
    background: var(--light-red);
}

/* Upload de arquivo */
.file-upload {
    position: relative;
    display: inline-block;
    width: 100%;
}

.file-upload-input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-upload-label {
    display: block;
    padding: 20px;
    border: 2px dashed var(--primary-red);
    border-radius: var(--border-radius);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: rgba(220, 53, 69, 0.05);
}

.file-upload-label:hover {
    background: rgba(220, 53, 69, 0.1);
    border-color: var(--dark-red);
}

.file-upload-icon {
    font-size: 2rem;
    color: var(--primary-red);
    margin-bottom: 10px;
}

/* Alertas */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin: 1rem 0;
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-color: #28a745;
}

.alert-error {
    background: var(--light-red);
    color: var(--accent-red);
    border-color: var(--primary-red);
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border-color: #17a2b8;
}

/* Loading spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

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

/* Página inicial */
.hero-section {
    text-align: center;
    padding: 4rem 0;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--medium-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-red);
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.3rem;
    color: var(--dark-gray);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-description {
    color: var(--medium-gray);
    line-height: 1.6;
}

/* Responsividade */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .checkbox-group {
        flex-direction: column;
    }
    
    .checkbox-item {
        min-width: auto;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Utilitários */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer p {
    opacity: 0.8;
}