/**
 * West Sacramento Utility Bill Calculator - Stylesheet
 * Version: 1.0
 * Last Updated: February 4, 2026
 * 
 * Color scheme inspired by City of West Sacramento website
 * Primary: Deep blue-green tones
 * Accent: Warm earth tones
 */

:root {
    /* Color Palette - West Sacramento inspired */
    --primary-dark: #1a4d5c;
    --primary: #2a6f7f;
    --primary-light: #3a8a9e;
    --accent: #d4915d;
    --accent-hover: #c27d47;
    
    /* Neutrals */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-input: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #5a6c7d;
    --text-muted: #7a8c9d;
    
    /* Borders & Lines */
    --border-color: #d1dce5;
    --border-accent: #2a6f7f;
    
    /* Status Colors */
    --error: #c0392b;
    --success: #27ae60;
    --warning: #e67e22;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(26, 77, 92, 0.08);
    --shadow-md: 0 4px 6px rgba(26, 77, 92, 0.12);
    --shadow-lg: 0 10px 20px rgba(26, 77, 92, 0.15);
    
    /* Typography */
    --font-primary: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecef 100%);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

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

.header-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.header-subtitle {
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    opacity: 0.95;
}

.header-description {
    font-size: 1rem;
    opacity: 0.85;
    max-width: 600px;
}

/* Main Content */
.main-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

/* Calculator Selector */
.calculator-selector {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.selector-label {
    display: block;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.calculator-dropdown {
    width: 100%;
    max-width: 400px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%232a6f7f' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-sm) center;
    padding-right: 3rem;
}

.calculator-dropdown:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(42, 111, 127, 0.1);
}

.calculator-dropdown:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(42, 111, 127, 0.15);
}

/* Calculator Forms */
.calculator-form {
    animation: slideIn 0.4s ease;
}

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

.calculator-form.hidden {
    display: none;
}

.form-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-accent);
}

.form-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
}

.form-notice {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: var(--spacing-xs);
}

.form-instructions {
    font-size: 0.95rem;
    color: var(--text-primary);
    background: #f0f8fa;
    padding: var(--spacing-sm) var(--spacing-md);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-sm);
}

/* Input Section */
.input-section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.input-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.input-group label {
    display: block;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.required {
    color: var(--error);
    font-weight: 700;
}

.input-field {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

select.input-field {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%232a6f7f' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-sm) center;
    padding-right: 3rem;
}

.input-field:hover {
    border-color: var(--primary);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(42, 111, 127, 0.15);
}

.input-field.error {
    border-color: var(--error);
}

.input-field.error:focus {
    box-shadow: 0 0 0 4px rgba(192, 57, 43, 0.15);
}

.input-note {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    font-style: italic;
}

.error-message {
    display: block;
    font-size: 0.875rem;
    color: var(--error);
    margin-top: var(--spacing-xs);
    font-weight: 500;
    min-height: 1.2em;
}

/* Results Section */
.results-section {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f8fbfc 0%, #f0f6f8 100%);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-accent);
    animation: expandIn 0.4s ease;
}

@keyframes expandIn {
    from {
        opacity: 0;
        transform: scaleY(0.95);
    }
    to {
        opacity: 1;
        transform: scaleY(1);
    }
}

.results-section.hidden {
    display: none;
}

.results-header {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary);
}

.results-category {
    margin-bottom: var(--spacing-xl);
}

.category-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: white;
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-sm);
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.results-table th,
.results-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.results-table th {
    background: var(--primary-dark);
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.results-table th:first-child {
    width: 35%;
}

.results-table td {
    font-family: var(--font-mono);
    font-size: 0.95rem;
}

.results-table tr:hover {
    background: rgba(42, 111, 127, 0.03);
}

.results-table tr:last-child td {
    border-bottom: none;
}

.results-table .total-row {
    font-weight: 700;
    background: rgba(42, 111, 127, 0.08);
    color: var(--primary-dark);
    font-size: 1.05rem;
}

.results-table .grand-total-row {
    background: var(--primary-dark);
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.results-table .grand-total-row td {
    padding: var(--spacing-md);
    border-bottom: none;
}

.results-print-button {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-primary);
    color: white;
    background: var(--accent);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.results-print-button:hover {
    background: var(--accent-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.results-print-button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-version {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    font-family: var(--font-mono);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }
    
    .header {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .header-title {
        font-size: 2rem;
    }
    
    .header-subtitle {
        font-size: 1.5rem;
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .results-table {
        font-size: 0.85rem;
    }
    
    .results-table th,
    .results-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .header-title {
        font-size: 1.75rem;
    }
    
    .header-subtitle {
        font-size: 1.25rem;
    }
    
    .results-table th,
    .results-table td {
        font-size: 0.8rem;
        padding: var(--spacing-xs);
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .calculator-selector,
    .input-section,
    .results-print-button,
    .footer {
        display: none;
    }
    
    .header {
        background: none;
        color: var(--primary-dark);
        box-shadow: none;
        border-bottom: 3px solid var(--primary-dark);
        page-break-after: avoid;
    }
    
    .main-content {
        box-shadow: none;
        page-break-inside: avoid;
    }
    
    .results-section {
        background: white;
        border: 1px solid #333;
    }
    
    .results-table th {
        background: var(--primary-dark) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .results-table tr:hover {
        background: transparent;
    }
}