/* =============================================
   Army Pay Chart - Professional Military Theme
   ============================================= */

:root {
    /* Color Palette */
    --color-primary: #1B3A1B;
    --color-primary-light: #2D5A2D;
    --color-primary-dark: #0F240F;
    --color-accent: #C9A227;
    --color-accent-light: #E4C14D;
    --color-accent-dark: #A68520;
    
    /* Neutrals */
    --color-bg: #0A0E0A;
    --color-bg-elevated: #111811;
    --color-bg-card: #151C15;
    --color-bg-table: #1A221A;
    --color-border: #2A3A2A;
    --color-border-light: #3A4A3A;
    
    /* Text */
    --color-text: #F0F4F0;
    --color-text-secondary: #A0B0A0;
    --color-text-muted: #607060;
    
    /* Typography */
    --font-display: 'Oswald', sans-serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Background Grid Pattern */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.03;
    background-image: 
        linear-gradient(var(--color-primary-light) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-primary-light) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* =============================================
   Header
   ============================================= */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 10, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.header-content {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-decoration: none;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-dark);
}

.logo-icon svg {
    width: 24px;
    height: 24px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.05em;
    line-height: 1.2;
}

.logo-sub {
    font-size: 0.7rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

nav {
    display: flex;
    gap: var(--space-lg);
}

nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: var(--space-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

nav a:hover {
    color: var(--color-accent);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

nav a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--space-sm);
}

.mobile-menu-btn svg {
    width: 28px;
    height: 28px;
}

/* =============================================
   Hero Section
   ============================================= */
.hero {
    position: relative;
    padding: var(--space-3xl) var(--space-xl);
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(201, 162, 39, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 100%);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-primary-light) 0%, transparent 70%);
    opacity: 0.1;
    pointer-events: none;
}

.hero-content {
    max-width: 1440px;
    margin: 0 auto;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-sm) var(--space-md);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.hero-badge svg {
    width: 16px;
    height: 16px;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: 0.02em;
    margin-bottom: var(--space-lg);
}

.hero h1 .highlight {
    color: var(--color-accent);
    position: relative;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-bottom: var(--space-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    min-width: 140px;
    text-align: center;
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-border-light);
}

.stat-card.featured {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-color: var(--color-primary-light);
}

.stat-value {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-accent);
    line-height: 1.2;
}

.stat-card.featured .stat-value {
    color: var(--color-accent-light);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--space-xs);
}

/* =============================================
   Main Content
   ============================================= */
main {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-xl);
}

/* Info Section */
.info-section {
    margin-bottom: var(--space-3xl);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.info-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    transition: border-color var(--transition-base), transform var(--transition-base);
}

.info-card:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
}

.info-icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.info-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

.info-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.info-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* =============================================
   Pay Tables
   ============================================= */
.pay-section {
    margin-bottom: var(--space-3xl);
}

.section-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.section-header h2::before {
    content: '';
    width: 4px;
    height: 1.5rem;
    background: var(--color-accent);
    border-radius: 2px;
}

.section-header p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.pay-table-container {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table-toolbar {
    background: var(--color-primary);
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.03em;
}

.table-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    white-space: nowrap;
}

thead {
    background: var(--color-bg-table);
}

th {
    padding: var(--space-md) var(--space-sm);
    text-align: right;
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
}

th:first-child {
    text-align: left;
    padding-left: var(--space-lg);
}

th:last-child {
    padding-right: var(--space-lg);
}

td {
    padding: var(--space-sm);
    text-align: right;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

td:first-child {
    text-align: left;
    padding-left: var(--space-lg);
    font-weight: 600;
    color: var(--color-accent);
}

td:last-child {
    padding-right: var(--space-lg);
}

.sticky-col {
    position: sticky;
    left: 0;
    background: var(--color-bg-table);
    z-index: 1;
}

tbody tr:hover td {
    background: rgba(27, 58, 27, 0.3);
}

tbody tr:hover td:first-child {
    background: rgba(27, 58, 27, 0.5);
}

.table-notes {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

/* =============================================
   Allowances Section
   ============================================= */
.allowances-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-xl);
}

.allowance-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.allowance-header {
    background: var(--color-primary);
    padding: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.allowance-header h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
}

.allowance-year {
    font-size: 0.75rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.allowance-table {
    padding: var(--space-md);
}

.allowance-table table {
    font-size: 0.9rem;
}

.allowance-table th {
    text-align: left;
    padding: var(--space-sm) var(--space-md);
}

.allowance-table td {
    text-align: left;
    padding: var(--space-sm) var(--space-md);
}

.allowance-table td:first-child {
    color: var(--color-text-secondary);
}

.allowance-table .current-rate {
    background: rgba(201, 162, 39, 0.1);
}

.allowance-table .current-rate td {
    color: var(--color-accent);
    font-weight: 600;
}

.allowance-table .current-rate td:first-child {
    color: var(--color-accent);
}

.allowance-content {
    padding: var(--space-lg);
}

.allowance-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.allowance-facts {
    list-style: none;
    margin-bottom: var(--space-lg);
}

.allowance-facts li {
    padding: var(--space-sm) 0;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
}

.allowance-facts li:last-child {
    border-bottom: none;
}

.allowance-note {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-elevated);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.btn-link:hover {
    color: var(--color-accent-light);
}

.btn-link svg {
    width: 16px;
    height: 16px;
}

/* =============================================
   Calculator
   ============================================= */
.calculator-container {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.calc-form {
    margin-bottom: var(--space-xl);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group label {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group select {
    padding: var(--space-md);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

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

.calc-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.result-card {
    text-align: center;
    padding: var(--space-md);
}

.result-card.primary {
    background: var(--color-primary);
    border-radius: var(--radius-sm);
    grid-column: span 1;
}

.result-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.result-card.primary .result-label {
    color: var(--color-text-secondary);
}

.result-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent);
}

.calc-disclaimer {
    margin-top: var(--space-md);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* =============================================
   FAQ Section
   ============================================= */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.faq-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--space-lg);
    background: none;
    border: none;
    color: var(--color-text);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--color-bg-elevated);
}

.faq-question svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.faq-item.open .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* =============================================
   Footer
   ============================================= */
footer {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3xl) var(--space-xl) var(--space-xl);
    margin-top: var(--space-3xl);
}

.footer-content {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-2xl);
}

.footer-section h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    letter-spacing: 0.03em;
}

.footer-section p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-section a {
    display: block;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    max-width: 1440px;
    margin: var(--space-2xl) auto 0;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin-bottom: var(--space-sm);
}

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

@media (max-width: 768px) {
    .header-content {
        padding: var(--space-md);
    }
    
    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg-elevated);
        flex-direction: column;
        padding: var(--space-md);
        gap: 0;
        border-bottom: 1px solid var(--color-border);
    }
    
    nav.open {
        display: flex;
    }
    
    nav a {
        padding: var(--space-md);
        border-bottom: 1px solid var(--color-border);
    }
    
    nav a:last-child {
        border-bottom: none;
    }
    
    nav a::after {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: var(--space-2xl) var(--space-md);
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        gap: var(--space-md);
    }
    
    .stat-card {
        flex: 1 1 calc(50% - var(--space-md));
        min-width: 120px;
    }
    
    main {
        padding: var(--space-xl) var(--space-md);
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .calc-results {
        grid-template-columns: repeat(2, 1fr);
    }
    
    footer {
        padding: var(--space-2xl) var(--space-md) var(--space-md);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
}

@media (max-width: 480px) {
    .logo-text {
        display: none;
    }
    
    .stat-card {
        flex: 1 1 100%;
    }
    
    .calc-results {
        grid-template-columns: 1fr;
    }
    
    .result-card.primary {
        grid-column: span 1;
    }
}

/* =============================================
   Print Styles
   ============================================= */
@media print {
    header, .hero-badge, .calculator-container, .faq-list, footer, nav, .info-section {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero {
        background: none;
        padding: 1rem 0;
    }
    
    .hero h1 {
        color: black;
        font-size: 2rem;
    }
    
    .pay-table-container {
        break-inside: avoid;
        border: 1px solid #ccc;
    }
    
    th, td {
        border: 1px solid #ccc;
        color: black;
    }
    
    .table-toolbar {
        background: #f5f5f5;
        color: black;
    }
}

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

.hero-content > * {
    animation: fadeIn 0.5s ease backwards;
}

.hero-badge { animation-delay: 0s; }
.hero h1 { animation-delay: 0.1s; }
.hero-description { animation-delay: 0.2s; }
.hero-stats { animation-delay: 0.3s; }

/* =============================================
   Legal Pages
   ============================================= */
.legal-content {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    max-width: 900px;
}

.legal-content h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.legal-content h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
}

.legal-content h2:first-of-type {
    margin-top: 0;
}

.legal-content h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
}

.legal-content p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.legal-content ul {
    margin: var(--space-md) 0;
    padding-left: var(--space-xl);
    color: var(--color-text-secondary);
}

.legal-content li {
    margin-bottom: var(--space-sm);
    line-height: 1.7;
}

.legal-content strong {
    color: var(--color-accent-light);
    font-weight: 600;
}

.legal-content a {
    color: var(--color-accent);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.legal-content a:hover {
    color: var(--color-accent-light);
}

.section-header h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.last-reviewed {
    display: inline-block;
    margin-top: var(--space-md);
    padding: 6px 14px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
}

.contact-block {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
}

.contact-block a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
}

.contact-block a:hover {
    color: var(--color-accent-light);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .legal-content {
        padding: var(--space-lg);
    }

    .legal-content h1 {
        font-size: 1.75rem;
    }

    .legal-content h2 {
        font-size: 1.3rem;
    }

    .legal-content h3 {
        font-size: 1.1rem;
    }

    .section-header h1 {
        font-size: 2rem;
    }
}