/**
 * FERS Retirement Calculator - responsive overrides
 * Mobile-first breakpoints.
 */

/* ========== Small phones (320px+) ========== */
@media (min-width: 320px) {
    /* Base styles live in main.css */
}

/* ========== Large phones (480px+) ========== */
@media (min-width: 480px) {
    .hero h1 {
        font-size: var(--text-4xl);
    }

    .results-main-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== Tablets (768px+) ========== */
@media (min-width: 768px) {
    /* Header */
    .mobile-menu-toggle {
        display: none;
    }

    .nav-menu {
        display: flex;
    }

    /* Hero Section */
    .hero {
        padding: var(--spacing-2xl) 0;
    }

    .hero h1 {
        font-size: var(--text-5xl);
    }

    .hero .subtitle {
        font-size: var(--text-xl);
    }

    
    .form-row-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    
    .results-main-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .results-secondary-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Footer */
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    
    .calculator-body {
        padding: var(--spacing-2xl);
    }

    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-lg);
    }
}

/* ========== Small desktop (1024px+) ========== */
@media (min-width: 1024px) {
    
    .container {
        padding-left: var(--spacing-xl);
        padding-right: var(--spacing-xl);
    }

    
    .grid-3-cols {
        grid-template-columns: repeat(3, 1fr);
    }

    
    .results-main-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .results-secondary-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Footer */
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Two-column calculator layout */
    .calculator-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-2xl);
    }

    .calculator-form {
        order: 1;
    }

    .calculator-results {
        order: 2;
        position: sticky;
        top: 100px;
        align-self: start;
    }

    
    .chart-wrapper {
        height: 400px;
    }
}

/* ========== Large desktop (1280px+) ========== */
@media (min-width: 1280px) {
    .hero h1 {
        font-size: 3.5rem;
    }

    .results-main-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .presets-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .chart-wrapper {
        height: 450px;
    }
}

/* ========== Wide screens (1440px+) ========== */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }

    .hero h1 {
        font-size: 4rem;
    }
}

/* ========== Landscape / short viewport ========== */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero h1 {
        font-size: var(--text-3xl);
    }

    .calculator-header {
        padding: var(--spacing-md);
    }
}

/* ========== Print ========== */
@media print {
    .header,
    .footer,
    .ad-container,
    .calculate-btn-wrapper,
    .results-actions,
    .mobile-menu-toggle {
        display: none !important;
    }

    body {
        background-color: white;
        color: black;
    }

    .calculator-wrapper {
        box-shadow: none;
        border: 1px solid #ccc;
    }

    .result-highlight-card {
        background: white;
        color: black;
        border: 2px solid black;
    }

    .result-highlight-card .result-value {
        color: black;
    }

    a {
        text-decoration: underline;
        color: black;
    }

    a[href]::after {
        content: " (" attr(href) ")";
        font-size: var(--text-sm);
    }
}

/* ========== High contrast ========== */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000000;
        --color-text-light: #333333;
    }

    .btn {
        border: 2px solid currentColor;
    }

    .card {
        border: 2px solid var(--color-border);
    }
}

/* ========== Dark mode placeholder (not enabled) ========== */
@media (prefers-color-scheme: dark) {
    /* Reserved for future dark theme tokens */
}

/* ========== Touch targets ========== */
@media (hover: none) and (pointer: coarse) {
    
    .btn {
        min-height: 48px;
        padding: var(--spacing-md) var(--spacing-xl);
    }

    .radio-item label {
        padding: var(--spacing-lg);
    }

    /* Reduce hover-only effects on touch */
    .card:hover {
        box-shadow: var(--shadow-md);
    }

    
    .slider::-webkit-slider-thumb {
        width: 28px;
        height: 28px;
    }

    .slider::-moz-range-thumb {
        width: 28px;
        height: 28px;
    }
}

/* ========== Reduced data / motion preference ========== */
@media (prefers-reduced-data: reduce) {
    
    .hero,
    .result-highlight-card,
    .btn-primary {
        background: var(--color-primary);
    }

    
    .card,
    .calculator-wrapper {
        box-shadow: var(--shadow-sm);
    }
}

/* ========== Safari iOS fixes ========== */
@supports (-webkit-touch-callout: none) {
    /* Prevent unwanted zoom on focus */
    input[type="number"],
    input[type="date"],
    select {
        font-size: 16px !important;
    }

    /* Normalize button appearance */
    .btn {
        -webkit-appearance: none;
        appearance: none;
    }
}

/* ========== Chrome Android tweaks ========== */
@supports (-webkit-appearance: none) and (not (overflow: -webkit-marquee)) {
    /* Slider track height */
    .slider {
        height: 6px;
    }
}