/* ===================================
   ORSIF Economic Impact Study
   Main Stylesheet
   =================================== */

/* CSS Variables for easy theming */
:root {
    /* ORSIF Brand Colors */
    --color-primary: #0d4d5f;          /* Dark teal - ORSIF text color */
    --color-primary-dark: #093a49;     /* Darker teal for hover states */
    --color-primary-light: #6b9dab;    /* Light teal - Shield color */
    --color-secondary: #27ae60;
    --color-accent: #6b9dab;           /* Shield teal as accent */
    --color-warning: #f39c12;

    /* Economic Study Specific Colors */
    --color-cancer: #c0392b;           /* Red for cancer costs */
    --color-msd: #2980b9;              /* Blue for MSD costs */
    --color-physician: #8e44ad;        /* Purple for physicians */
    --color-support: #16a085;          /* Teal for support staff */
    --color-placeholder: #f39c12;      /* Orange for placeholder data */
    --color-increase: #27ae60;         /* Green for increases */
    --color-decrease: #e74c3c;         /* Red for decreases */

    /* Neutrals */
    --color-text: #2c3e50;
    --color-text-light: #7f8c8d;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-bg-dark: #ecf0f1;
    --color-border: #dce1e4;

    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-heading: 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

ul, ol {
    padding-left: var(--spacing-lg);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===================================
   Layout
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

section {
    padding: var(--spacing-xxl) 0;
}

section:nth-child(even) {
    background-color: var(--color-bg-alt);
}

.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.hidden {
    display: none !important;
}

/* ===================================
   Navigation
   =================================== */
.main-nav {
    background-color: var(--color-primary);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 40px;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    text-decoration: none;
}

.nav-logo img {
    height: 40px;
    max-height: 40px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    padding: 0;
    margin: 0;
}

.nav-links a {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    background-color: rgba(255,255,255,0.15);
    color: white;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: white;
    transition: all var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero-logo {
    margin-bottom: var(--spacing-lg);
}

.hero-logo img {
    max-width: 280px;
    height: auto;
}

.hero h1 {
    font-size: 2.75rem;
    margin-bottom: var(--spacing-md);
}

.hero .highlight {
    color: var(--color-primary-light);
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===================================
   Big Number Display
   =================================== */
.big-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.big-number.white {
    color: white;
}

.big-number-label {
    font-size: 1rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.big-number-comparison {
    font-size: 1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: inline-block;
    margin-top: var(--spacing-sm);
}

.big-number-comparison.increase {
    background-color: rgba(39, 174, 96, 0.15);
    color: var(--color-increase);
}

.big-number-comparison.decrease {
    background-color: rgba(231, 76, 60, 0.15);
    color: var(--color-decrease);
}

/* ===================================
   Key Findings Cards
   =================================== */
.findings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.finding-card {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    border-top: 4px solid var(--color-primary);
}

.finding-card.cancer {
    border-top-color: var(--color-cancer);
}

.finding-card.msd {
    border-top-color: var(--color-msd);
}

.finding-card.physician {
    border-top-color: var(--color-physician);
}

.finding-card.support {
    border-top-color: var(--color-support);
}

.finding-card h3 {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.finding-card .value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.finding-card .comparison {
    font-size: 0.9rem;
    color: var(--color-increase);
}

.finding-card .source {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

/* ===================================
   Cost Summary Table
   =================================== */
.cost-table-container {
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
}

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

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

.cost-table th {
    background-color: var(--color-primary);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

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

.cost-table tr:hover {
    background-color: var(--color-bg-alt);
}

.cost-table .category-header {
    background-color: var(--color-bg-alt);
    font-weight: 600;
}

.cost-table .total-row {
    background-color: var(--color-primary);
    color: white;
    font-weight: 700;
}

.cost-table .total-row td {
    border-bottom: none;
}

.cost-table .number {
    text-align: right;
    font-family: var(--font-mono);
}

.cost-table .change {
    text-align: center;
}

.cost-table .change.positive {
    color: var(--color-increase);
}

.cost-table .change.negative {
    color: var(--color-decrease);
}

/* ===================================
   Calculator Layout
   =================================== */
.calculator-container {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.input-panel {
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 80px;
}

.results-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Input Tabs */
.input-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
}

.input-tab {
    flex: 1;
    padding: var(--spacing-md);
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 500;
    color: var(--color-text-light);
    transition: all var(--transition-fast);
    border-bottom: 3px solid transparent;
}

.input-tab:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-alt);
}

.input-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    display: none;
    padding: var(--spacing-lg);
}

.tab-content.active {
    display: block;
}

/* Preset Selector */
.preset-selector {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}

.preset-selector label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.preset-selector select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background-color: white;
    cursor: pointer;
}

/* ===================================
   Slider Components
   =================================== */
.slider-group {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-border);
}

.slider-group.placeholder {
    border-left-color: var(--color-placeholder);
}

.slider-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.slider-label label {
    font-weight: 500;
    font-size: 0.9rem;
}

.slider-value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-primary);
    font-size: 1rem;
}

.slider-container {
    position: relative;
}

input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--color-bg-dark);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    background: var(--color-primary-dark);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.slider-source {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
    display: block;
}

.placeholder-badge {
    display: inline-block;
    background-color: var(--color-placeholder);
    color: white;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-left: var(--spacing-xs);
}

/* ===================================
   Results Card
   =================================== */
.result-card {
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    text-align: center;
}

.result-card.highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.result-card.highlight .big-number {
    color: white;
}

.result-card.highlight .big-number-label {
    color: rgba(255,255,255,0.8);
}

.result-card h3 {
    margin-bottom: var(--spacing-md);
}

/* Results Breakdown */
.results-breakdown {
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.results-breakdown h3 {
    padding: var(--spacing-lg);
    margin-bottom: 0;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}

/* ===================================
   Charts Container
   =================================== */
.chart-container {
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
}

.chart-container h3 {
    margin-bottom: var(--spacing-lg);
}

.chart-wrapper {
    position: relative;
    height: 300px;
}

.charts-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

/* ===================================
   Comparison Section
   =================================== */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.comparison-column {
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.comparison-column.baseline {
    border-top: 4px solid var(--color-text-light);
}

.comparison-column.updated {
    border-top: 4px solid var(--color-primary);
}

.comparison-header {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-alt);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.comparison-header h3 {
    margin-bottom: var(--spacing-xs);
}

.comparison-header .year {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.comparison-content {
    padding: var(--spacing-lg);
}

/* ===================================
   Methodology Sections
   =================================== */
.methodology-section {
    margin-bottom: var(--spacing-xxl);
}

.methodology-section h2 {
    color: var(--color-primary);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.formula-box {
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
}

.sources-list {
    list-style: none;
    padding: 0;
}

.sources-list li {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.sources-list li:last-child {
    border-bottom: none;
}

.sources-list a {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.85rem;
}

/* ===================================
   Export Buttons
   =================================== */
.export-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: white;
}

.btn-secondary {
    background-color: white;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

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

.btn-join:hover {
    background-color: #219a52;
    color: white;
}

/* ===================================
   Footer
   =================================== */
.main-footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    max-width: 200px;
    height: auto;
    opacity: 0.9;
}

.footer-section h4 {
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.7;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .calculator-container {
        grid-template-columns: 1fr;
    }

    .input-panel {
        position: static;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        gap: var(--spacing-lg);
    }

    .stat-number {
        font-size: 2rem;
    }

    .big-number {
        font-size: 3rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-primary-dark);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: var(--spacing-md);
    }

    .nav-toggle {
        display: flex;
    }

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

    .charts-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    section {
        padding: var(--spacing-xl) 0;
    }

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

    .big-number {
        font-size: 2.5rem;
    }

    .input-tabs {
        flex-wrap: wrap;
    }

    .input-tab {
        flex: 1 1 50%;
    }
}

/* ===================================
   Utility Classes
   =================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-lg); }
.mt-3 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-lg); }
.mb-3 { margin-bottom: var(--spacing-xl); }

/* ===================================
   Print Styles
   =================================== */
@media print {
    .main-nav,
    .main-footer,
    .nav-toggle,
    .export-buttons,
    .input-panel {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: black;
    }

    .result-card {
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }

    .chart-container {
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }

    .cost-table {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}