/* Brazilian-inspired color palette */
:root {
    --primary-color: #1e88e5;
    --secondary-color: #ffc107;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --brazil-green: #009b3a;
    --brazil-yellow: #fedf00;
    --brazil-blue: #002776;
}

/* General Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: #343a40;
    line-height: 1.6;
}

/* Navigation */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-dark .navbar-brand {
    color: #fff !important;
}

/* Hero Section */
.hero-icon {
    animation: pulse 2s infinite;
}

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

/* Cards */
.card {
    border: none;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1) !important;
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
    border-bottom: none;
    padding: 1.5rem;
}

.card-body {
    padding: 2rem;
}

/* Forms */
.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(30, 136, 229, 0.25);
}

.form-control-lg {
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.75rem 1.5rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

.btn-primary:hover {
    background-color: #1976d2;
    border-color: #1976d2;
    transform: translateY(-1px);
}

.btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Results Display */
.cep-display {
    background: linear-gradient(135deg, var(--primary-color), #42a5f5);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    display: inline-block;
    margin-bottom: 1rem;
}

.info-item {
    padding: 0.5rem 0;
}

.info-item label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.form-control-plaintext {
    font-size: 1.1rem;
    padding: 0.5rem 0;
    color: var(--dark-color);
    font-weight: 500;
}

/* Feature Icons */
.feature-icon {
    animation: float 6s ease-in-out infinite;
}

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

/* History Section */
.card-header .btn-outline-danger {
    border-color: #dc3545;
    color: #dc3545;
    font-size: 0.85rem;
}

.card-header .btn-outline-danger:hover {
    background-color: #dc3545;
    color: white;
}

/* Error Pages */
.error-icon {
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.example-cep {
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    text-align: center;
    transition: background-color 0.3s ease;
}

.example-cep:hover {
    background-color: #e9ecef;
}

/* Alerts */
.alert {
    border-radius: 8px;
    border: none;
    font-weight: 500;
}

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

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

/* Footer */
footer {
    margin-top: auto;
}

/* AdSense Placeholders */
#adsense-banner,
#adsense-banner-top,
#adsense-banner-bottom,
#adsense-banner-error,
#adsense-interstitial {
    min-height: 100px;
    background-color: #f8f9fa;
    border: 2px dashed #dee2e6;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

#adsense-banner:hover,
#adsense-banner-top:hover,
#adsense-banner-bottom:hover,
#adsense-banner-error:hover,
#adsense-interstitial:hover {
    background-color: #e9ecef;
    border-color: #adb5bd;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    .cep-display {
        padding: 0.75rem 1.5rem;
    }
    
    .cep-display .display-6 {
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    .display-4 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Smooth Transitions */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* Brazilian Flag Inspired Accents */
.bg-brazil-green {
    background-color: var(--brazil-green) !important;
}

.bg-brazil-yellow {
    background-color: var(--brazil-yellow) !important;
}

.bg-brazil-blue {
    background-color: var(--brazil-blue) !important;
}

.text-brazil-green {
    color: var(--brazil-green) !important;
}

.text-brazil-yellow {
    color: var(--brazil-yellow) !important;
}

.text-brazil-blue {
    color: var(--brazil-blue) !important;
}

/* Accessibility */
.btn:focus,
.form-control:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .btn, .navbar, footer, #adsense-banner,
    #adsense-banner-top, #adsense-banner-bottom,
    #adsense-banner-error, #adsense-interstitial {
        display: none !important;
    }
    
    .card {
        border: 1px solid #dee2e6 !important;
        box-shadow: none !important;
    }
}