/**
 * Lead Intelligence Application - Main Stylesheet
 * Design professionale con tema blu
 */

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

:root {
    --primary-blue: #0056b3;
    --secondary-blue: #007bff;
    --light-blue: #e7f1ff;
    --dark-blue: #003d82;
    --accent-blue: #4a90e2;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --white: #ffffff;
    --gray-light: #f8f9fa;
    --gray-medium: #e9ecef;
    --gray-dark: #495057;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 86, 179, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: var(--text-dark);
    line-height: 1.6;
}

/* Container principale */
.container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: 40px;
    text-align: center;
    position: relative;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.logo {
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-blue);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.header h1 {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.header h2 {
    font-size: 1.3em;
    font-weight: 400;
    margin-bottom: 10px;
    opacity: 0.95;
}

.header p {
    font-size: 1.1em;
    opacity: 0.9;
    font-style: italic;
}

/* Main content */
.main-content {
    padding: 40px;
}

/* Form section */
.form-section {
    background: var(--gray-light);
    padding: 30px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.form-section h3 {
    color: var(--primary-blue);
    font-size: 1.5em;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--secondary-blue);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-size: 0.95em;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 15px;
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    font-size: 1em;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

.form-group select {
    cursor: pointer;
}

.form-group-full {
    grid-column: 1 / -1;
}

/* Buttons */
.btn {
    padding: 14px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-container {
    text-align: center;
    margin-top: 30px;
}

/* Loading spinner */
.loading {
    display: none;
    text-align: center;
    padding: 40px;
}

.loading.active {
    display: block;
}

.spinner {
    border: 4px solid var(--gray-medium);
    border-top: 4px solid var(--secondary-blue);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.loading-text {
    color: var(--text-light);
    font-size: 1.1em;
}

/* Results section */
.results-section {
    display: none;
}

.results-section.active {
    display: block;
}

.results-header {
    background: var(--light-blue);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 25px;
    border-left: 5px solid var(--secondary-blue);
}

.results-header h3 {
    color: var(--primary-blue);
    font-size: 1.5em;
    margin-bottom: 10px;
}

.results-count {
    color: var(--text-light);
    font-size: 1em;
}

/* Result card */
.result-card {
    background: var(--white);
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    padding: 25px;
    margin-bottom: 20px;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.result-card:hover {
    border-color: var(--secondary-blue);
    box-shadow: 0 4px 20px rgba(0, 123, 255, 0.15);
    transform: translateY(-2px);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.result-title {
    flex: 1;
}

.result-title h4 {
    color: var(--primary-blue);
    font-size: 1.4em;
    margin-bottom: 8px;
}

.result-country {
    display: inline-block;
    background: var(--secondary-blue);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
}

.result-website {
    margin-bottom: 20px;
}

.result-website a {
    color: var(--secondary-blue);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.result-website a:hover {
    color: var(--dark-blue);
    text-decoration: underline;
}

.result-description {
    background: var(--gray-light);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    line-height: 1.7;
    color: var(--text-dark);
}

.result-criteria {
    border-top: 2px solid var(--gray-medium);
    padding-top: 20px;
}

.result-criteria h5 {
    color: var(--primary-blue);
    font-size: 1.1em;
    margin-bottom: 15px;
}

.criteria-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.criteria-item {
    background: var(--light-blue);
    padding: 12px 15px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-blue);
}

.criteria-item strong {
    color: var(--primary-blue);
    display: block;
    margin-bottom: 5px;
    font-size: 0.95em;
}

.criteria-item span {
    color: var(--text-dark);
    font-size: 0.9em;
}

/* Alert messages */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: none;
}

.alert.active {
    display: block;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: var(--light-blue);
    color: var(--dark-blue);
    border: 1px solid var(--secondary-blue);
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Footer */
.footer {
    background: var(--gray-light);
    padding: 20px;
    text-align: center;
    color: var(--text-light);
    font-size: 0.9em;
    border-top: 3px solid var(--secondary-blue);
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .header {
        padding: 30px 20px;
    }

    .header h1 {
        font-size: 1.8em;
    }

    .header h2 {
        font-size: 1.1em;
    }

    .main-content {
        padding: 20px;
    }

    .form-section {
        padding: 20px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .result-header {
        flex-direction: column;
    }

    .criteria-list {
        grid-template-columns: 1fr;
    }
}

/* Utility classes */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none;
}

/* Scrollbar personalizzata */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-light);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-blue);
    border-radius: 5px;
}

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