/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-bg: #ecf0f1;
    --white: #ffffff;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --border-color: #bdc3c7;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-bg);
}

/* Navigation */
.navbar {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-menu a:hover {
    background-color: rgba(255,255,255,0.1);
}

.nav-menu a.active {
    background-color: var(--secondary-color);
}

/* Main Container */
.container {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.page-header {
    text-align: center;
    margin-bottom: 2rem;
}

.page-header h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Disclaimer */
.disclaimer {
    background-color: #fff3cd;
    border-left: 4px solid var(--warning-color);
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 4px;
}

/* Forms */
.checklist-form,
.calculator-form,
.letter-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

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

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

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.help-text {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

/* Checklist Items */
.checklist-item {
    background-color: #f8f9fa;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    border-left: 4px solid var(--border-color);
    transition: border-color 0.3s;
}

.checklist-item:has(input:checked) {
    border-left-color: var(--success-color);
    background-color: #d4edda;
}

.checklist-item label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
}

.checklist-item input[type="checkbox"] {
    margin-right: 1rem;
    margin-top: 0.25rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.checklist-label {
    font-weight: 600;
    font-size: 1.05rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--white);
    margin-top: 1rem;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

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

.btn-secondary:hover {
    background-color: #229954;
}

/* Results */
.results {
    margin-top: 2rem;
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.results.hidden {
    display: none;
}

.status-box {
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.status-box.compliant {
    background-color: #d4edda;
    color: #155724;
    border: 2px solid var(--success-color);
}

.status-box.risk {
    background-color: #f8d7da;
    color: #721c24;
    border: 2px solid var(--danger-color);
}

.missing-items {
    margin-bottom: 1.5rem;
}

.missing-items h3 {
    color: var(--danger-color);
    margin-bottom: 1rem;
}

.missing-items ul {
    list-style-position: inside;
    color: var(--text-dark);
}

.missing-items li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-bg);
}

.legal-explanation {
    background-color: var(--light-bg);
    padding: 1.5rem;
    border-radius: 4px;
    margin-top: 1.5rem;
}

.legal-explanation h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.legal-explanation ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.legal-explanation li {
    margin-bottom: 0.5rem;
}

/* Calculator Results */
.result-summary {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    border-radius: 8px;
    margin-bottom: 2rem;
}

.notice-range {
    font-size: 2.5rem;
    font-weight: 700;
    margin-top: 1rem;
}

.calculation-breakdown {
    background-color: var(--light-bg);
    padding: 1.5rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.breakdown-item:last-child {
    border-bottom: none;
    font-weight: 700;
    font-size: 1.1rem;
    padding-top: 1rem;
    margin-top: 0.5rem;
    border-top: 2px solid var(--primary-color);
}

/* Letter Output */
.letter-output {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-top: 2rem;
}

.letter-output.hidden {
    display: none;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.letter-content {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: 4px;
    font-family: 'Georgia', serif;
    line-height: 1.8;
    white-space: pre-line;
    border: 1px solid var(--border-color);
}

.letter-disclaimer {
    margin-top: 1rem;
    padding: 1rem;
    background-color: #fff3cd;
    border-left: 4px solid var(--warning-color);
    border-radius: 4px;
}

/* Headings in forms */
h3 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--light-bg);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .container {
        padding: 0 1rem;
    }

    .checklist-form,
    .calculator-form,
    .letter-form,
    .results,
    .letter-output {
        padding: 1.5rem;
    }

    .page-header h2 {
        font-size: 1.5rem;
    }

    .notice-range {
        font-size: 2rem;
    }

    .output-header {
        flex-direction: column;
        align-items: stretch;
    }
}