/* ==========================================================================
   GOOGLE FONTS IMPORT (Global)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* ==========================================================================
   GLOBAL VARIABLES and BASE STYLES (COMMON)
   ========================================================================== */
:root {
    /* Light Mode Default Variables */
    --primary-color: #1e3c72;
    --secondary-color: #2a5298;
    --accent-color: #ffc107; 
    --text-light: white;
    --text-dark: #333;
    --text-muted: #444; 
    --error-color: #dc3545;
    --success-color: #28a745;
    --light-bg: #f8f9fa; 
    --page-bg: #f1f1f1; 
    
    --footer-bg: #0f0f0f;
    --footer-text: #adb5bd;
    --footer-text-light: #ced4da;
    --footer-title: #ffffff;
    --footer-bottom-bg: #000000;
    
    --header-height: 70px;
    --header-bg: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --header-text-color: var(--text-light);
    --header-icon-color: var(--text-light);
    --header-btn-bg: var(--accent-color);
    --header-btn-text: var(--primary-color); 
    --header-btn-hover-bg: #e0a800; 

    /* Neumorphic variables (Light Mode) - Consistent base */
    --neumorphic-bg: #e0e5ec; 
    --neumorphic-shadow-light: #ffffff;
    --neumorphic-shadow-dark: #b8babe;
    --neumorphic-text-color: #2c3e50; 
    
    --neumorphic-btn-hover-bg: #d4d8e2; 
    --neumorphic-btn-disabled-bg: #ccc; 
    --neumorphic-btn-disabled-text: #777; 

    --tool-description-bg: rgba(255, 255, 255, 0.6);
    --tool-description-shadow-light: rgba(255, 255, 255, 0.8);
    --tool-description-shadow-dark: rgba(184, 186, 190, 0.6);
    --tool-description-text: var(--text-dark); 
    --tool-description-h2-border: var(--accent-color);
    --tool-disclaimer-border: var(--accent-color);
    --tool-disclaimer-bg: rgba(255, 193, 7, 0.08);

    --ad-placeholder-bg: #e0e0e0; 
    --ad-placeholder-text-color: #777;
    --ad-placeholder-border-color: #ccc;

    /* Theme Switch Colors - Light Mode */
    --theme-switch-track-bg-off: var(--neumorphic-bg);
    --theme-switch-track-shadow-off: inset 1px 1px 3px var(--neumorphic-shadow-dark), inset -1px -1px 3px var(--neumorphic-shadow-light);
    --theme-switch-track-bg-on: var(--accent-color);
    --theme-switch-track-shadow-on: 0 0 5px color-mix(in srgb, var(--accent-color) 70%, transparent);
    --theme-switch-thumb-bg: var(--neumorphic-shadow-light);
    --theme-switch-thumb-shadow: 1px 1px 3px var(--neumorphic-shadow-dark), -1px -1px 2px var(--neumorphic-shadow-light);
    --theme-switch-icon-color-off: color-mix(in srgb, var(--primary-color) 80%, black); 
    --theme-switch-icon-color-on: var(--header-btn-text); 
    --theme-transition-duration: 0.3s;
}

body.dark-mode {
    /* Dark Mode Variable Overrides - Matched with OneDrive/other tools */
    --primary-color: #3b82f6; 
    --secondary-color: #1d4ed8; 
    --accent-color: #f59e0b; 
    --text-light: #1f2937; 
    --text-dark: #e5e7eb;  
    --text-muted: #9ca3af; 
    --page-bg: #111827; 

    --header-bg: linear-gradient(135deg, #1f2937, #374151); 
    --header-text-color: #e5e7eb;
    --header-icon-color: #e5e7eb;
    --header-btn-bg: var(--accent-color);
    --header-btn-text: #111827; 
    --header-btn-hover-bg: #d97706; 

    /* NEUMORPHIC VARIABLES FOR DARK MODE (CONSISTENT) */
    --neumorphic-bg: #1f2937;       
    --neumorphic-shadow-light: #374151; 
    --neumorphic-shadow-dark: #0e131c;  
    --neumorphic-text-color: #d1d5db;   
    
    --neumorphic-btn-hover-bg: #374151; 
    
    --neumorphic-btn-disabled-bg: #4b5563; 
    --neumorphic-btn-disabled-text: #9ca3af;

    --tool-description-bg: rgba(31, 41, 55, 0.7); 
    --tool-description-shadow-light: rgba(75, 85, 99, 0.5);
    --tool-description-shadow-dark: rgba(17, 24, 39, 0.5);
    --tool-description-text: var(--text-dark); 
    
    --tool-description-h2-border: var(--accent-color);
    --tool-disclaimer-border: var(--accent-color);
    --tool-disclaimer-bg: rgba(245, 158, 11, 0.1); 
    
    --ad-placeholder-bg: #374151;
    --ad-placeholder-text-color: #9ca3af;
    --ad-placeholder-border-color: #4b5563;

    /* Theme Switch Colors - Dark Mode */
    --theme-switch-track-bg-off: var(--neumorphic-bg); 
    --theme-switch-track-shadow-off: inset 1px 1px 3px var(--neumorphic-shadow-dark), inset -1px -1px 3px var(--neumorphic-shadow-light); 
    --theme-switch-track-bg-on: var(--accent-color); 
    --theme-switch-track-shadow-on: 0 0 8px color-mix(in srgb, var(--accent-color) 50%, transparent);
    --theme-switch-thumb-bg: var(--neumorphic-shadow-light); 
    --theme-switch-thumb-shadow: 1px 1px 3px var(--neumorphic-shadow-dark), -1px -1px 2px var(--neumorphic-shadow-light); 
    --theme-switch-icon-color-off: var(--accent-color); 
    --theme-switch-icon-color-on: var(--header-btn-text); 
}

/* Common CSS Reset & Base Styles */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Poppins', sans-serif; transition: background-color var(--theme-transition-duration) ease, color var(--theme-transition-duration) ease, border-color var(--theme-transition-duration) ease, box-shadow var(--theme-transition-duration) ease; }
*:focus-visible { outline: 2px solid var(--accent-color); outline-offset: 2px; } *:focus { outline: none; }
html { scroll-behavior: smooth; }
body { min-height: 100vh; overflow-x: hidden; background: var(--page-bg); padding-top: var(--header-height); display: flex; flex-direction: column; color: var(--text-dark); }
body.menu-open { overflow-y: hidden; }
.container { max-width: 1200px; margin-left: auto; margin-right: auto; padding-left: 20px; padding-right: 20px; width: 100%; }
.visually-hidden { position: absolute !important; height: 1px; width: 1px; overflow: hidden; clip: rect(1px, 1px, 1px, 1px); white-space: nowrap; }
main { flex-grow: 1; padding: 30px 15px; display: flex; flex-direction: column; align-items: center; }

/* Common Header Styles */
header { background: var(--header-bg); color: var(--header-text-color); padding: 0 20px; display: flex; justify-content: space-between; align-items: center; position: fixed; width: 100%; top: 0; left: 0; z-index: 1000; box-shadow: 0 4px 8px rgba(0,0,0,0.1); height: var(--header-height); }
.logo { font-size: 28px; font-weight: bold; letter-spacing: 1px; display: flex; align-items: center; } .logo i { margin-right: 10px; } .logo-link { color: var(--header-text-color); text-decoration: none; font-weight: bold; }
.header-right-controls { display: none; align-items: center; gap: 10px; } .desktop-nav { display: flex; gap: 15px; align-items: center; }
.desktop-nav a { color: var(--header-text-color); text-decoration: none; font-size: 16px; font-weight: 500; padding: 5px 0; display: inline-flex; align-items: center; gap: 6px; }
.desktop-nav a:hover, .desktop-nav a.active { color: var(--accent-color); text-decoration: underline; }
.desktop-nav a.btn { background-color: var(--header-btn-bg); color: var(--header-btn-text) !important; padding: 8px 15px; border-radius: 5px; font-weight: bold; text-decoration: none; }
.desktop-nav a.btn:hover { background-color: var(--header-btn-hover-bg); }
.menu-icon { font-size: 28px; cursor: pointer; color: var(--header-icon-color); background: transparent; border: none; padding: 10px; } .menu-icon i { font-size: 24px; display: block; }
.theme-switch { position: relative; display: inline-block; width: 50px; height: 26px; align-self: center; } .theme-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--theme-switch-track-bg-off); box-shadow: var(--theme-switch-track-shadow-off); transition: .3s; border-radius: 26px; }
.slider:before { position: absolute; content: "\f186"; font-family: "Font Awesome 6 Free"; font-weight: 900; height: 20px; width: 20px; left: 3px; bottom: 3px; background-color: var(--theme-switch-thumb-bg); box-shadow: var(--theme-switch-thumb-shadow); transition: .3s; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; color: var(--theme-switch-icon-color-off); }
input:checked + .slider { background-color: var(--theme-switch-track-bg-on); box-shadow: var(--theme-switch-track-shadow-on); }
input:checked + .slider:before { transform: translateX(24px); content: "\f185"; color: var(--theme-switch-icon-color-on); }
.mobile-menu { position: fixed; top: 0; right: -280px; width: 280px; max-width: 90%; height: 100vh; background: var(--primary-color); transition: right .4s ease-in-out; padding: 20px; z-index: 1001; box-shadow: -4px 0 8px rgba(0,0,0,.2); overflow-y: auto; }
body.dark-mode .mobile-menu { background: #1f2937; } .mobile-menu.show { right: 0; }
.mobile-menu .close-btn { font-size: 24px; cursor: pointer; color: var(--header-text-color); background: transparent; border: none; padding: 0; display: block; text-align: right; margin-bottom: 10px; }
.mobile-menu .menu-links { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.mobile-menu .menu-links a { color: var(--header-text-color); text-decoration: none; font-size: 18px; padding: 10px 0; display: flex; align-items: center; gap: 8px; transition: color .3s ease; }
.mobile-menu .menu-links a:hover, .mobile-menu .menu-links a.active { color: var(--accent-color); }
.mobile-menu .menu-links a.btn { background-color: var(--header-btn-bg); color: var(--header-btn-text) !important; padding: 10px 15px; border-radius: 5px; text-align: center; font-weight: bold; justify-content: center; }
.mobile-menu .menu-links a.btn:hover { background-color: var(--header-btn-hover-bg); }
.mobile-menu hr { width: 100%; border: 0; border-top: .5px solid rgba(255,255,255,.2); margin: 15px 0; }
body.dark-mode .mobile-menu hr { border-top-color: rgba(229,231,255,.2); }
.mobile-menu .social-icons-horizontal { margin-top: 20px; display: flex; justify-content: center; align-items: center; gap: 20px; }
.mobile-menu .social-icons-horizontal a { color: var(--header-text-color); font-size: 24px; transition: color .3s ease-in-out; padding: 0; }
.mobile-menu .social-icons-horizontal a:hover { color: var(--accent-color); }

/* Common Ad Container & Layout Wrapper Styles */
.ad-container { display: none; background-color: var(--ad-placeholder-bg); align-items: center; justify-content: center; text-align: center; color: var(--ad-placeholder-text-color); font-size: .9em; margin: 0 auto; overflow: hidden; }
.ad-container p { margin: 0; padding: 10px; border: 1px dashed var(--ad-placeholder-border-color); width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.ad-top, .ad-bottom { width: 100%; max-width: 728px; min-height: 90px; margin-bottom: 20px; } .ad-top { margin-top: 0; }
.tool-layout-wrapper { display: flex; justify-content: center; align-items: flex-start; gap: 20px; width: 100%; max-width: 1100px; margin: 0 auto; }
.ad-left, .ad-right { width: 160px; min-height: 600px; flex-shrink: 0; } .ad-left { order: -1; }
.tool-layout-wrapper > .tool-container { flex-grow: 1; }

/* Common .tool-container styles */
.tool-container { background: var(--neumorphic-bg); padding: 25px; border-radius: 20px; box-shadow: 8px 8px 16px var(--neumorphic-shadow-dark), -8px -8px 16px var(--neumorphic-shadow-light); text-align: center; width: 100%; max-width: 800px; color: var(--neumorphic-text-color); margin: 0; }
.tool-container h1 { font-size: 24px; font-weight: 600; color: var(--neumorphic-text-color); margin-bottom: 8px; }
.tool-container .tagline { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; }
.tool-container label { display: block; font-size: 14px; font-weight: 500; color: var(--neumorphic-text-color); margin-bottom: 5px; text-align: left; }
.tool-container .tool-copyright { font-size: .9em; color: var(--text-muted); margin-top: 25px; margin-bottom: 20px; text-align: center; }
.tool-container .tool-copyright a { font-weight: bold; color: var(--error-color); text-decoration: none; }
body.dark-mode .tool-container .tool-copyright a { color: #f87171; }
.tool-container .tool-copyright a:hover { text-decoration: underline; }
.tool-container .tool-copyright a[href="https://www.scriptbazar.in"] { color: red !important; }
body.dark-mode .tool-container .tool-copyright a[href="https://www.scriptbazar.in"] { color: #ff5c5c !important; }

/* Common Tool Description Styles */
.tool-description { text-align: left; margin-top: 30px; margin-bottom: 0; padding: 20px; border-top: 1px solid var(--neumorphic-shadow-dark); color: var(--tool-description-text); font-size: .95em; line-height: 1.7; background-color: var(--tool-description-bg); border-radius: 12px; box-shadow: inset 3px 3px 6px var(--tool-description-shadow-dark), inset -3px -3px 6px var(--tool-description-shadow-light); }
.tool-description h2 { font-size: 1.5em; color: var(--primary-color); margin-bottom: 18px; font-weight: 600; text-align: center; padding-bottom: 5px; border-bottom: 1px solid var(--tool-description-h2-border); display: block; }
body.dark-mode .tool-description h2 { color: var(--accent-color); } 
.tool-description h3 { font-size: 1.2em; color: var(--secondary-color); margin-top: 25px; margin-bottom: 12px; font-weight: 600; }
body.dark-mode .tool-description h3 { color: var(--text-dark); }
.tool-description p { margin-bottom: 15px; } .tool-description ul { list-style-position: outside; margin-left: 25px; margin-bottom: 18px; }
.tool-description ul li { margin-bottom: 10px; padding-left: 5px; }
.tool-description .disclaimer { font-size: .9em; color: var(--text-muted); border-left: 4px solid var(--tool-disclaimer-border); padding: 12px 15px; margin-top: 25px; background-color: var(--tool-disclaimer-bg); border-radius: 4px; }
.tool-description .disclaimer strong { color: var(--error-color); font-weight: 600; }
body.dark-mode .tool-description .disclaimer strong { color: #f87171; }

/* ==========================================================================
   COMMON FOOTER STYLES 
   ========================================================================== */
.site-footer { background-color: var(--footer-bg); color: var(--footer-text); padding-top: 50px; font-size: 14px; line-height: 1.6; margin-top: auto; width: 100%; }
.footer-main { }
.footer-main-container { display: flex; flex-wrap: wrap; gap: 30px; margin-bottom: 40px; } 
.footer-column.about-column { flex: 1 1 30%; min-width: 250px; text-align: left; }
.footer-column.about-column .footer-site-description { margin-bottom: 20px; color: var(--footer-text-light); }
.footer-column.about-column .footer-social-icons { justify-content: flex-start; }
.footer-links-group { flex: 2 1 65%; display: flex; flex-wrap: wrap; gap: 20px; }
.footer-column { flex: 1; min-width: 180px; } 
.footer-links-group .links-column { min-width: 160px; }
.footer-site-name { font-size: 28px; font-weight: 700; color: var(--footer-title); margin-bottom: 15px; }
.footer-column-title { font-size: 18px; font-weight: 600; color: var(--footer-title); margin-bottom: 20px; }
.footer-column ul { list-style: none; padding: 0; margin: 0; } 
.footer-column ul li { margin-bottom: 10px; }
.footer-column ul li a { color: var(--footer-text); text-decoration: none; transition: color 0.3s ease, padding-left 0.3s ease;} 
.footer-column ul li a:hover { color: var(--footer-title); padding-left: 5px; }
.footer-social-icons { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
.footer-social-icons a { display: inline-flex; justify-content: center; align-items: center; width: 36px; height: 36px; border-radius: 50%; background-color: #343a40; color: var(--footer-title); font-size: 16px; text-decoration: none; transition: background-color .3s ease, transform .3s ease; }
.footer-social-icons a:hover { background-color: var(--accent-color); color: var(--primary-color) !important; transform: scale(1.1); }
body.dark-mode .footer-social-icons a:hover { color: #111827 !important; }
.footer-bottom { background-color: var(--footer-bottom-bg); padding: 20px 0; border-top: 1px solid #2c2c2c; }
.footer-bottom-container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; } 
.footer-buy-code-btn { background-color: var(--accent-color); color: var(--primary-color) !important; padding: 8px 15px; border-radius: 5px; font-weight: bold; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; border: none; transition: background-color 0.3s ease, color 0.3s ease;}
.footer-buy-code-btn:hover { background-color: var(--header-btn-hover-bg); }
body.dark-mode .footer-buy-code-btn { color: #111827 !important; }
.copyright-text { font-size: 15px; color: var(--footer-text); margin: 0; text-align: right; flex-grow: 1; }
.copyright-text a, .copyright-text strong { color: var(--accent-color); text-decoration: none; } 
.copyright-text a:hover { text-decoration: underline; }

/* ==========================================================================
   RESPONSIVE ADJUSTMENTS (COMMON) - Remains the same
   ========================================================================== */
@media (max-width: 500px) { .tool-container { padding: 20px; } .tool-container h1 { font-size: 22px; } .tool-description { padding: 15px; font-size: 0.9em; } .tool-description h2 { font-size: 1.3em; } .tool-description h3 { font-size: 1.1em; } }
@media (max-width: 992px) { .tool-layout-wrapper { flex-direction: column; align-items: center; } .ad-top, .ad-bottom { max-width: 90%; } .tool-layout-wrapper > .tool-container { margin-left: auto; margin-right: auto; } .desktop-nav .desktop-nav-theme-toggle { margin-right: 10px; } }
@media (max-width: 768px) { body { padding-top: 60px; --header-height: 60px; } header { height: var(--header-height); padding: 0 15px; } .logo { font-size: 26px; } .logo i { margin-right: 8px; } .desktop-nav { display: none; } .header-right-controls { display: flex; } .menu-icon { display: flex; } .mobile-header-theme-toggle { display: inline-block; } .desktop-nav-theme-toggle { display: none; } .footer-main-container { flex-direction: column; align-items: flex-start; } .footer-column.about-column { flex-basis: 100%; text-align: left; min-width: unset; } .footer-column.about-column .footer-site-description { max-width: 100%; margin-left: 0; margin-right: 0; font-size: 16px; } .footer-column.about-column .footer-social-icons { justify-content: flex-start; } .footer-links-group { flex-basis: 100%; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 15px; } .footer-links-group .footer-column.links-column { flex-basis: calc(50% - 10px); min-width: 150px; text-align: left; } .footer-column ul { text-align: left; } .footer-column ul li a { font-size: 16px; } .footer-bottom-container { flex-direction: column; align-items: center; text-align: center; gap: 10px; } .footer-buy-code-btn { margin-bottom: 10px; font-size: 16px; } .copyright-text { text-align: center; font-size: 15px; } .ad-top, .ad-bottom { min-height: 50px; } .ad-top { margin-bottom: 15px;} .ad-bottom { margin-top: 15px;} }
@media (min-width: 769px) { .header-right-controls { display: none; } .desktop-nav-theme-toggle { display: inline-block; } }
@media (max-width: 480px) { .logo { font-size: 24px; } .logo i { margin-right: 6px; } main { padding: 20px 5px; } .tool-container { padding: 15px; } .tool-container h1 { font-size: 20px; } .site-footer { font-size: 15px; padding-top: 30px; } .footer-site-name { font-size: 25px; } .footer-column-title { font-size: 18px; } .footer-column.about-column .footer-site-description { font-size: 15px; } .footer-column ul li a { font-size: 15px; } .footer-links-group { gap: 10px; } .footer-links-group .footer-column.links-column { flex-basis: calc(50% - 5px); min-width: auto; text-align: left; } .footer-buy-code-btn { font-size: 15px; padding: 6px 12px; } .copyright-text { font-size: 14px; } .ad-top, .ad-bottom { max-width: 100%; } }
@media (min-width: 769px) and (max-width: 992px) { .footer-main-container { flex-direction: column; align-items: center; } .footer-column.about-column { flex-basis: 100%; text-align:center; min-width: unset; } .footer-column.about-column .footer-social-icons { justify-content: center; } .footer-links-group { width: 100%; justify-content: space-around; flex-direction: row; } .footer-links-group .footer-column.links-column { flex-basis: calc(45% - 15px); min-width: 160px; text-align: left; } .footer-column ul { text-align: left; } }

/* ==========================================================================
   MILEAGE CALCULATOR SPECIFIC STYLES
   ========================================================================== */
.tool-container .input-group-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr); 
    gap: 15px; 
    margin-bottom: 20px; 
    align-items: start; 
}

.tool-container .input-item { 
    display: flex;
    flex-direction: column; 
    gap: 5px; 
}

.tool-container .input-item label {
    font-weight: 500; 
    color: var(--neumorphic-text-color);
    /* text-align: left; is default from common .tool-container label */
}

.tool-container .input-item input[type="number"] {
    width: 100%; 
    padding: 12px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    background: var(--neumorphic-bg); 
    box-shadow: inset 3px 3px 6px var(--neumorphic-shadow-dark), 
                inset -3px -3px 6px var(--neumorphic-shadow-light);
    color: var(--neumorphic-text-color);
    outline: none;
    text-align: center; 
}
.tool-container .input-item input[type="number"]::placeholder {
    color: var(--text-muted); 
    opacity: 0.8;
}
.tool-container .input-item input[type="number"]:focus {
    box-shadow: inset 1px 1px 3px var(--neumorphic-shadow-dark), 
                inset -1px -1px 3px var(--neumorphic-shadow-light);
}

.tool-container textarea#mileageOutput {
    width: 100%; 
    min-height: 100px; 
    padding: 12px; 
    border-radius: 10px;
    font-size: 15px; 
    line-height: 1.6;
    background: var(--neumorphic-bg);
    color: var(--neumorphic-text-color);
    outline: none;
    resize: vertical; 
    margin-top: 10px; 
    margin-bottom: 20px; 
    display: block; 
    box-shadow: inset 3px 3px 6px var(--neumorphic-shadow-dark), 
                inset -3px -3px 6px var(--neumorphic-shadow-light);
    border: 1px solid transparent; 
    text-align: left; 
}
.tool-container textarea#mileageOutput::placeholder {
    text-align: center; 
    color: var(--text-muted); 
}
.tool-container textarea#mileageOutput:focus {
     box-shadow: inset 1px 1px 3px var(--neumorphic-shadow-dark), 
                inset -1px -1px 3px var(--neumorphic-shadow-light);
    border-color: color-mix(in srgb, var(--accent-color) 40%, transparent); 
}

.tool-container .buttons { 
    display: grid;
    grid-template-columns: repeat(4, 1fr); 
    gap: 15px;
    margin-top: 20px; 
    margin-bottom: 25px; 
}

.tool-container .buttons button {
    padding: 12px 10px; 
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: bold;
    background: var(--neumorphic-bg);
    box-shadow: 3px 3px 7px var(--neumorphic-shadow-dark), 
                -3px -3px 7px var(--neumorphic-shadow-light); 
    cursor: pointer;
    color: var(--neumorphic-text-color);
    text-align: center;
    min-width: 0; 
}
.tool-container .buttons button:disabled {
    background: var(--neumorphic-btn-disabled-bg);
    color: var(--neumorphic-btn-disabled-text);
    box-shadow: none;
    cursor: not-allowed;
    opacity: 0.6;
}
.tool-container .buttons button:hover:not(:disabled) {
    background: var(--neumorphic-btn-hover-bg); 
    transform: translateY(-1px); 
    box-shadow: 4px 4px 8px var(--neumorphic-shadow-dark), 
                -4px -4px 8px var(--neumorphic-shadow-light);
}
.tool-container .buttons button:active:not(:disabled) {
    transform: translateY(0.5px); 
    box-shadow: inset 2px 2px 4px var(--neumorphic-shadow-dark), 
                inset -2px -2px 4px var(--neumorphic-shadow-light);
}

/* Responsive for Mileage Calculator Specifics */
@media (max-width: 768px) { 
    .tool-container .input-group-row {
        grid-template-columns: 1fr; 
    }
    .tool-container .input-item label {
        text-align: center; 
    }
    .tool-container .buttons {
        grid-template-columns: repeat(2, 1fr); 
    }
}
@media (max-width: 480px) { 
    .tool-container .buttons {
        grid-template-columns: 1fr;
    }
}