/**
 * Coached Tools Design System
 * 
 * A mobile-first, NHS/Gov UK-inspired design system for psychological
 * assessments and self-help tools.
 * 
 * See DESIGN-SYSTEM.md for philosophy, usage guidelines, and examples.
 */

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* Colors - NHS/Gov UK inspired palette */
    --tools-blue: #1d70b8;
    --tools-blue-dark: #144e81;
    --tools-green: #00703c;
    --tools-green-light: #85c996;
    --tools-green-dark: #005a30;
    --tools-yellow: #ffdd00;
    --tools-yellow-light: #fff7bf;
    --tools-red: #d4351c;
    --tools-red-light: #f9e1de;
    --tools-black: #0b0c0c;
    --tools-grey-dark: #505a5f;
    --tools-grey: #b1b4b6;
    --tools-grey-light: #f3f2f1;
    --tools-white: #ffffff;
    
    /* Semantic colors */
    --tools-text: var(--tools-black);
    --tools-text-muted: var(--tools-grey-dark);
    --tools-link: var(--tools-blue);
    --tools-link-hover: var(--tools-blue-dark);
    --tools-border: #b1b4b6;
    --tools-focus: var(--tools-yellow);
    --tools-bg: var(--tools-white);
    --tools-bg-alt: var(--tools-grey-light);
    
    /* Typography */
    --tools-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --tools-font-size-xs: 0.875rem;
    --tools-font-size-sm: 1rem;
    --tools-font-size-md: 1.125rem;
    --tools-font-size-lg: 1.5rem;
    --tools-font-size-xl: 2rem;
    --tools-font-size-xxl: 2.5rem;
    --tools-line-height: 1.5;
    --tools-line-height-tight: 1.25;
    
    /* Spacing (8px base unit) */
    --tools-space-xs: 0.5rem;
    --tools-space-sm: 1rem;
    --tools-space-md: 1.5rem;
    --tools-space-lg: 2rem;
    --tools-space-xl: 3rem;
    --tools-space-xxl: 4rem;
    
    /* Layout */
    --tools-max-width: 720px;
    --tools-max-width-wide: 960px;
    --tools-border-radius: 4px;
    --tools-border-radius-lg: 8px;
    
    /* Transitions */
    --tools-transition-fast: 150ms ease;
    --tools-transition: 250ms ease;
    --tools-transition-slow: 400ms ease;
}


/* ==========================================================================
   Reset & Base
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--tools-font);
    font-size: var(--tools-font-size-sm);
    line-height: var(--tools-line-height);
    color: var(--tools-text);
    background: var(--tools-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, video, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--tools-link);
    text-decoration: underline;
    text-underline-offset: 0.1em;
}

a:hover {
    color: var(--tools-link-hover);
    text-decoration-thickness: 2px;
}

a:focus {
    outline: 3px solid var(--tools-focus);
    outline-offset: 0;
    background: var(--tools-focus);
}

/* Remove default focus styles for mouse users */
a:focus:not(:focus-visible) {
    outline: none;
    background: transparent;
}

a:focus-visible {
    outline: 3px solid var(--tools-focus);
    outline-offset: 0;
    background: var(--tools-focus);
}


/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--tools-space-sm);
    font-weight: 700;
    line-height: var(--tools-line-height-tight);
    color: var(--tools-text);
}

h1, .tools-h1 {
    font-size: var(--tools-font-size-xxl);
    margin-bottom: var(--tools-space-md);
}

h2, .tools-h2 {
    font-size: var(--tools-font-size-xl);
}

h3, .tools-h3 {
    font-size: var(--tools-font-size-lg);
}

h4, .tools-h4 {
    font-size: var(--tools-font-size-md);
}

p {
    margin: 0 0 var(--tools-space-sm);
}

.tools-lead {
    font-size: var(--tools-font-size-md);
    color: var(--tools-text-muted);
}

.tools-small {
    font-size: var(--tools-font-size-xs);
}

.tools-muted {
    color: var(--tools-text-muted);
}

strong, .tools-bold {
    font-weight: 700;
}


/* ==========================================================================
   Layout
   ========================================================================== */

.tools-container {
    width: 100%;
    max-width: var(--tools-max-width);
    margin: 0 auto;
    padding: 0 var(--tools-space-sm);
}

.tools-container--wide {
    max-width: var(--tools-max-width-wide);
}

.tools-section {
    padding: var(--tools-space-xl) 0;
}

.tools-section--alt {
    background: var(--tools-bg-alt);
    padding:25px;
}

.tools-section--tight {
    padding: var(--tools-space-lg) 0;
}

/* Simple grid */
.tools-grid {
    display: grid;
    gap: var(--tools-space-md);
}

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

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

@media (max-width: 640px) {
    .tools-grid--2,
    .tools-grid--3 {
        grid-template-columns: 1fr;
    }
}

/* Flex utilities */
.tools-flex {
    display: flex;
}

.tools-flex--between {
    justify-content: space-between;
}

.tools-flex--center {
    align-items: center;
}

.tools-flex--wrap {
    flex-wrap: wrap;
}

.tools-flex--gap {
    gap: var(--tools-space-sm);
}


/* ==========================================================================
   Navbar
   ========================================================================== */

.tools-navbar {
    background: var(--tools-black);
    padding: var(--tools-space-sm) 0;
}

.tools-navbar__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tools-navbar__logo {
    color: var(--tools-white);
    font-weight: 700;
    font-size: var(--tools-font-size-md);
    font-style: italic;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.tools-navbar__logo:hover,
.tools-navbar__logo:focus {
    color: var(--tools-white);
    text-decoration: none;
}

.tools-navbar__logo span {
    font-weight: 400;
    opacity: 0.7;
}

.tools-navbar__links {
    display: flex;
    gap: var(--tools-space-md);
}

.tools-navbar__link {
    color: var(--tools-white);
    font-size: var(--tools-font-size-xs);
    text-decoration: none;
    opacity: 0.85;
}

.tools-navbar__link:hover {
    opacity: 1;
    text-decoration: underline;
    color: var(--tools-white);
}


/* ==========================================================================
   Footer
   ========================================================================== */

.tools-footer {
    margin-top: var(--tools-space-xl);
}

/* CTA Section */
.tools-footer__cta {
    background: linear-gradient(135deg, #0b0c0c 0%, #1a1a1a 100%);
    padding: var(--tools-space-xl) 0;
    text-align: center;
}

.tools-footer__cta-text {
    color: var(--tools-white);
    font-size: var(--tools-font-size-md);
    margin: 0 0 var(--tools-space-md);
    font-weight: 500;
}

.tools-footer__cta .tools-btn--primary {
    background: var(--tools-green);
    border-color: var(--tools-green);
    box-shadow: 0 4px 14px rgba(0, 112, 60, 0.4);
    transition: all var(--tools-transition-fast);
}

.tools-footer__cta .tools-btn--primary:hover {
    background: var(--tools-green-dark);
    border-color: var(--tools-green-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 112, 60, 0.5);
}

/* Main Footer */
.tools-footer__main {
    background: var(--tools-bg-alt);
    border-top: 1px solid var(--tools-border);
    padding: var(--tools-space-lg) 0;
}

.tools-footer__content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--tools-space-lg);
}

.tools-footer__tests {
    flex: 1;
}

.tools-footer__label {
    font-size: var(--tools-font-size-xs);
    font-weight: 600;
    color: var(--tools-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 var(--tools-space-sm);
}

.tools-footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tools-space-xs) var(--tools-space-md);
}

.tools-footer__links a {
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text);
    text-decoration: none;
    transition: color var(--tools-transition-fast);
}

.tools-footer__links a:hover {
    color: var(--tools-link);
    text-decoration: underline;
}

.tools-footer__brand {
    text-align: right;
    flex-shrink: 0;
}

.tools-footer__copyright {
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
    margin: 0 0 var(--tools-space-xs);
}

.tools-footer__copyright a {
    color: var(--tools-text);
    text-decoration: none;
    font-weight: 600;
}

.tools-footer__copyright a:hover {
    text-decoration: underline;
}

.tools-footer__from {
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
    margin: 0;
}

.tools-footer__from a {
    color: var(--tools-text-muted);
}

.tools-footer__from a:hover {
    color: var(--tools-link);
}

/* Mobile responsive */
@media (max-width: 640px) {
    .tools-footer__cta {
        padding: var(--tools-space-lg) 0;
    }

    .tools-footer__content {
        flex-direction: column;
        gap: var(--tools-space-md);
    }

    .tools-footer__brand {
        text-align: left;
        padding-top: var(--tools-space-sm);
        border-top: 1px solid var(--tools-border);
        width: 100%;
    }

    .tools-footer__links {
        gap: var(--tools-space-xs) var(--tools-space-sm);
    }
}


/* ==========================================================================
   Buttons
   ========================================================================== */

.tools-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--tools-space-xs);
    padding: 0.75rem 1.5rem;
    font-family: inherit;
    font-size: var(--tools-font-size-sm);
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--tools-border-radius);
    cursor: pointer;
    transition: all var(--tools-transition-fast);
    -webkit-appearance: none;
    appearance: none;
}

.tools-btn:focus {
    outline: 3px solid var(--tools-focus);
    outline-offset: 0;
}

.tools-btn:focus:not(:focus-visible) {
    outline: none;
}

.tools-btn:focus-visible {
    outline: 3px solid var(--tools-focus);
    outline-offset: 0;
}

/* Primary - Green (main CTA) */
.tools-btn--primary {
    background: var(--tools-green);
    color: var(--tools-white);
    border-color: var(--tools-green);
}

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

/* Secondary - White with border */
.tools-btn--secondary {
    background: var(--tools-white);
    color: var(--tools-black);
    border-color: var(--tools-black);
}

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

/* Ghost - Transparent */
.tools-btn--ghost {
    background: transparent;
    color: var(--tools-blue);
    border-color: transparent;
    text-decoration: underline;
}

.tools-btn--ghost:hover {
    color: var(--tools-blue-dark);
    text-decoration-thickness: 2px;
}

/* Button sizes */
.tools-btn--sm {
    padding: 0.5rem 1rem;
    font-size: var(--tools-font-size-xs);
}

.tools-btn--lg {
    padding: 1rem 2rem;
    font-size: var(--tools-font-size-md);
}

.tools-btn--full {
    width: 100%;
}

/* Disabled state */
.tools-btn:disabled,
.tools-btn--disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}


/* ==========================================================================
   Progress Bar
   ========================================================================== */

.tools-progress {
    margin-bottom: var(--tools-space-lg);
}

.tools-progress__label {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--tools-space-xs);
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
}

.tools-progress__bar {
    height: 8px;
    background: var(--tools-grey-light);
    border-radius: 4px;
    overflow: hidden;
}

.tools-progress__fill {
    height: 100%;
    background: var(--tools-green);
    border-radius: 4px;
    transition: width var(--tools-transition);
}

/* Percentage display inside */
.tools-progress__percentage {
    font-weight: 700;
    font-size: var(--tools-font-size-xs);
    background: var(--tools-green);
    color: var(--tools-white);
    padding: 0.125rem 0.5rem;
    border-radius: 2px;
    display: inline-block;
}


/* ==========================================================================
   Question Cards & Assessment Views
   ========================================================================== */

/* Assessment wrapper - contains all question views */
.tools-assessment {
    position: relative;
    min-height: 400px;
}

/* Single question view (one at a time, full focus) */
.tools-question-view {
    display: none;
    animation: toolsFadeSlideIn var(--tools-transition-slow) ease;
}

.tools-question-view.is-active {
    display: block;
}

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

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .tools-question-view {
        animation: none;
    }
}

/* Question card */
.tools-question-card {
    background: var(--tools-white);
    border: 3px solid var(--tools-yellow);
    border-radius: var(--tools-border-radius-lg);
    padding: var(--tools-space-lg);
    margin-bottom: var(--tools-space-md);
}

.tools-question-card--highlight {
    border-color: var(--tools-blue);
}

.tools-question-card__number {
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
    margin-bottom: var(--tools-space-xs);
}

.tools-question-card__text {
    font-size: var(--tools-font-size-lg);
    font-weight: 700;
    margin: 0 0 var(--tools-space-md);
    line-height: var(--tools-line-height-tight);
}

/* Multi-question group (batch of questions) */
.tools-question-group {
    display: flex;
    flex-direction: column;
    gap: var(--tools-space-md);
}

/* Compact question row (for batched questions) */
.tools-question-row {
    padding: var(--tools-space-md);
    background: var(--tools-white);
    border: 1px solid var(--tools-border);
    border-radius: var(--tools-border-radius);
}

.tools-question-row__text {
    font-weight: 600;
    margin-bottom: var(--tools-space-sm);
}


/* ==========================================================================
   Form Elements - Radio Buttons (Likert Scale)
   ========================================================================== */

.tools-radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--tools-space-xs);
}

.tools-radio-group--horizontal {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--tools-space-sm);
}

.tools-radio {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: var(--tools-space-sm);
    padding: var(--tools-space-sm);
    background: var(--tools-white);
    border: 2px solid var(--tools-border);
    border-radius: var(--tools-border-radius);
    cursor: pointer;
    transition: all var(--tools-transition-fast);
}

.tools-radio:hover {
    border-color: var(--tools-black);
}

.tools-radio.is-selected {
    border-color: var(--tools-blue);
    background: #f0f7ff;
}

.tools-radio input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tools-radio__indicator {
    width: 24px;
    height: 24px;
    border: 2px solid var(--tools-border);
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--tools-transition-fast);
}

.tools-radio:hover .tools-radio__indicator {
    border-color: var(--tools-black);
}

.tools-radio.is-selected .tools-radio__indicator {
    border-color: var(--tools-blue);
}

.tools-radio.is-selected .tools-radio__indicator::after {
    content: '';
    width: 12px;
    height: 12px;
    background: var(--tools-blue);
    border-radius: 50%;
}

.tools-radio__label {
    font-size: var(--tools-font-size-sm);
    line-height: 1.4;
    padding-top: 2px;
}

/* Focus state for keyboard navigation */
.tools-radio:has(input:focus-visible) {
    outline: 3px solid var(--tools-focus);
    outline-offset: 0;
}


/* ==========================================================================
   Form Elements - Slider (Range Input)
   ========================================================================== */

.tools-slider {
    padding: var(--tools-space-md) 0;
}

.tools-slider__labels {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--tools-space-sm);
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
}

.tools-slider__label--start {
    text-align: left;
}

.tools-slider__label--end {
    text-align: right;
}

.tools-slider__track {
    position: relative;
    height: 8px;
    background: var(--tools-grey-light);
    border-radius: 4px;
}

.tools-slider__fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--tools-green);
    border-radius: 4px;
    transition: width var(--tools-transition-fast);
}

.tools-slider input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: transparent;
    cursor: pointer;
    position: relative;
    z-index: 2;
    margin: 0;
}

.tools-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 32px;
    height: 32px;
    background: var(--tools-green);
    border: 4px solid var(--tools-white);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    cursor: grab;
    transition: transform var(--tools-transition-fast);
}

.tools-slider input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.tools-slider input[type="range"]::-webkit-slider-thumb:active {
    cursor: grabbing;
    transform: scale(1.15);
}

.tools-slider input[type="range"]::-moz-range-thumb {
    width: 32px;
    height: 32px;
    background: var(--tools-green);
    border: 4px solid var(--tools-white);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    cursor: grab;
}

.tools-slider input[type="range"]:focus {
    outline: none;
}

.tools-slider input[type="range"]:focus-visible::-webkit-slider-thumb {
    outline: 3px solid var(--tools-focus);
    outline-offset: 2px;
}

.tools-slider__value {
    text-align: center;
    margin-top: var(--tools-space-sm);
    font-weight: 700;
    font-size: var(--tools-font-size-lg);
    color: var(--tools-green);
}


/* ==========================================================================
   Form Elements - Checkboxes
   ========================================================================== */

.tools-checkbox {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: var(--tools-space-sm);
    padding: var(--tools-space-sm);
    cursor: pointer;
}

.tools-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tools-checkbox__indicator {
    width: 24px;
    height: 24px;
    border: 2px solid var(--tools-border);
    border-radius: var(--tools-border-radius);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--tools-transition-fast);
    background: var(--tools-white);
}

.tools-checkbox:hover .tools-checkbox__indicator {
    border-color: var(--tools-black);
}

.tools-checkbox.is-checked .tools-checkbox__indicator {
    background: var(--tools-blue);
    border-color: var(--tools-blue);
}

.tools-checkbox.is-checked .tools-checkbox__indicator::after {
    content: '';
    width: 6px;
    height: 12px;
    border: solid var(--tools-white);
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
    margin-top: -2px;
}

.tools-checkbox__label {
    font-size: var(--tools-font-size-sm);
    line-height: 1.4;
}


/* ==========================================================================
   Navigation Buttons (Previous / Next)
   ========================================================================== */

.tools-nav-buttons {
    display: flex;
    gap: var(--tools-space-sm);
    padding: var(--tools-space-lg) 0;
    border-top: 1px solid var(--tools-border);
    margin-top: var(--tools-space-lg);
}

.tools-nav-buttons--sticky {
    position: sticky;
    bottom: 0;
    background: var(--tools-white);
    padding: var(--tools-space-md);
    margin: 0 calc(-1 * var(--tools-space-sm));
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

.tools-nav-buttons--center {
    justify-content: center;
}

.tools-nav-buttons--between {
    justify-content: space-between;
}

/* Mobile: stack buttons */
@media (max-width: 480px) {
    .tools-nav-buttons {
        flex-direction: column;
    }
    
    .tools-nav-buttons .tools-btn {
        width: 100%;
    }
}


/* ==========================================================================
   Callout / Info Boxes
   ========================================================================== */

.tools-callout {
    padding: var(--tools-space-md);
    border-radius: var(--tools-border-radius);
    margin: var(--tools-space-md) 0;
}

/* With header bar */
.tools-callout--header {
    padding: 0;
    overflow: hidden;
}

.tools-callout__header {
    padding: var(--tools-space-sm) var(--tools-space-md);
    font-weight: 700;
    font-size: var(--tools-font-size-sm);
}

.tools-callout__body {
    padding: var(--tools-space-md);
}

/* Info - Blue */
.tools-callout--info {
    background: #e8f4fc;
    border-left: 4px solid var(--tools-blue);
}

.tools-callout--info .tools-callout__header {
    background: var(--tools-blue);
    color: var(--tools-white);
}

/* Warning - Yellow */
.tools-callout--warning {
    background: var(--tools-yellow-light);
    border-left: 4px solid var(--tools-yellow);
}

.tools-callout--warning .tools-callout__header {
    background: var(--tools-yellow);
    color: var(--tools-black);
}

/* Alert - Red */
.tools-callout--alert {
    background: var(--tools-red-light);
    border-left: 4px solid var(--tools-red);
}

.tools-callout--alert .tools-callout__header {
    background: var(--tools-red);
    color: var(--tools-white);
}

/* Success - Green */
.tools-callout--success {
    background: #e8f5ec;
    border-left: 4px solid var(--tools-green);
}

.tools-callout--success .tools-callout__header {
    background: var(--tools-green);
    color: var(--tools-white);
}

/* Callout content styles */
.tools-callout p:last-child {
    margin-bottom: 0;
}

.tools-callout ul {
    margin: 0;
    padding-left: var(--tools-space-md);
}

.tools-callout li {
    margin-bottom: var(--tools-space-xs);
}

.tools-callout li:last-child {
    margin-bottom: 0;
}


/* ==========================================================================
   Research Excerpt / Newspaper Clipping
   ========================================================================== */

.tools-research {
    position: relative;
    background: var(--tools-white);
    padding: var(--tools-space-lg);
    margin: var(--tools-space-lg) 0;
    box-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.08),
        0 4px 12px rgba(0, 0, 0, 0.05);
}

/* Torn paper effect - top */
.tools-research::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 0;
    right: 0;
    height: 8px;
    background: 
        linear-gradient(135deg, var(--tools-white) 25%, transparent 25%),
        linear-gradient(225deg, var(--tools-white) 25%, transparent 25%);
    background-size: 16px 16px;
}

/* Torn paper effect - bottom */
.tools-research::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 8px;
    background: 
        linear-gradient(315deg, var(--tools-white) 25%, transparent 25%),
        linear-gradient(45deg, var(--tools-white) 25%, transparent 25%);
    background-size: 16px 16px;
}

.tools-research__source {
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--tools-space-sm);
    padding-bottom: var(--tools-space-xs);
    border-bottom: 1px solid var(--tools-border);
}

.tools-research blockquote {
    margin: 0;
    padding: 0;
    font-style: normal;
}

.tools-research blockquote p {
    font-size: var(--tools-font-size-md);
    line-height: 1.6;
    margin-bottom: var(--tools-space-sm);
}

.tools-research blockquote p:last-of-type {
    margin-bottom: var(--tools-space-md);
}

.tools-research cite {
    display: block;
    font-style: normal;
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
}

.tools-research cite a {
    color: var(--tools-link);
}

/* Alternative: boxed research style */
.tools-research--boxed {
    border: 2px solid var(--tools-grey-light);
    border-radius: var(--tools-border-radius-lg);
}

.tools-research--boxed::before,
.tools-research--boxed::after {
    display: none;
}


/* ==========================================================================
   Tabs
   ========================================================================== */

.tools-tabs {
    margin: var(--tools-space-lg) 0;
}

.tools-tabs__list {
    display: flex;
    gap: var(--tools-space-xs);
    border-bottom: 2px solid var(--tools-grey-light);
    padding: 0;
    margin: 0;
    list-style: none;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tools-tabs__tab {
    padding: var(--tools-space-sm) var(--tools-space-md);
    font-weight: 600;
    font-size: var(--tools-font-size-sm);
    color: var(--tools-text-muted);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--tools-transition-fast);
    margin-bottom: -2px;
}

.tools-tabs__tab:hover {
    color: var(--tools-text);
}

.tools-tabs__tab.is-active {
    color: var(--tools-text);
    border-bottom-color: var(--tools-blue);
}

.tools-tabs__tab:focus {
    outline: 3px solid var(--tools-focus);
    outline-offset: -3px;
}

.tools-tabs__panel {
    display: none;
    padding: var(--tools-space-md) 0;
    animation: toolsFadeIn var(--tools-transition) ease;
}

.tools-tabs__panel.is-active {
    display: block;
}

@keyframes toolsFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .tools-tabs__panel {
        animation: none;
    }
}


/* ==========================================================================
   Tooltips
   ========================================================================== */

.tools-tooltip {
    position: relative;
    display: inline-block;
}

.tools-tooltip__trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    font-size: 12px;
    font-weight: 700;
    color: var(--tools-white);
    background: var(--tools-blue);
    border-radius: 50%;
    cursor: help;
    border: none;
}

.tools-tooltip__content {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    width: max-content;
    max-width: 280px;
    padding: var(--tools-space-sm);
    font-size: var(--tools-font-size-xs);
    font-weight: 400;
    color: var(--tools-white);
    background: var(--tools-black);
    border-radius: var(--tools-border-radius);
    opacity: 0;
    visibility: hidden;
    transition: all var(--tools-transition-fast);
    z-index: 100;
    text-align: left;
}

.tools-tooltip__content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--tools-black);
}

.tools-tooltip:hover .tools-tooltip__content,
.tools-tooltip:focus-within .tools-tooltip__content {
    opacity: 1;
    visibility: visible;
}

/* Mobile: tap to show */
@media (max-width: 768px) {
    .tools-tooltip__content {
        left: 0;
        transform: none;
    }
    
    .tools-tooltip__content::after {
        left: 10px;
        transform: none;
    }
}


/* ==========================================================================
   Results Section
   ========================================================================== */

.tools-results {
    display: none;
    padding: var(--tools-space-xl) 0;
    animation: toolsFadeSlideIn var(--tools-transition-slow) ease;
}

.tools-results.is-visible {
    display: block;
}

.tools-results__header {
    text-align: center;
    margin-bottom: var(--tools-space-xl);
}

.tools-results__title {
    font-size: var(--tools-font-size-xl);
    margin-bottom: var(--tools-space-xs);
}

.tools-results__subtitle {
    color: var(--tools-text-muted);
}


/* ==========================================================================
   Score Gauge (Donut / Semi-circle)
   ========================================================================== */

.tools-gauge {
    position: relative;
    width: 240px;
    height: 120px;
    margin: var(--tools-space-lg) auto;
}

.tools-gauge__svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.tools-gauge__background {
    fill: none;
    stroke: var(--tools-grey-light);
    stroke-width: 20;
    stroke-linecap: round;
}

.tools-gauge__fill {
    fill: none;
    stroke-width: 20;
    stroke-linecap: round;
    transform-origin: center;
    transition: stroke-dashoffset var(--tools-transition-slow) ease;
}

/* Gauge colors based on score */
.tools-gauge__fill--low {
    stroke: var(--tools-green);
}

.tools-gauge__fill--medium {
    stroke: var(--tools-yellow);
}

.tools-gauge__fill--high {
    stroke: #f47738; /* Orange */
}

.tools-gauge__fill--very-high {
    stroke: var(--tools-red);
}

.tools-gauge__score {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.tools-gauge__value {
    font-size: var(--tools-font-size-xxl);
    font-weight: 700;
    line-height: 1;
    color: var(--tools-text);
}

.tools-gauge__label {
    font-size: var(--tools-font-size-sm);
    color: var(--tools-text-muted);
    margin-top: var(--tools-space-xs);
}


/* ==========================================================================
   Full Donut Chart (for percentages/breakdowns)
   ========================================================================== */

.tools-donut {
    position: relative;
    width: 200px;
    height: 200px;
    margin: var(--tools-space-md) auto;
}

.tools-donut__svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.tools-donut__segment {
    fill: none;
    stroke-width: 40;
    transition: stroke-dashoffset var(--tools-transition) ease;
}

.tools-donut__center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.tools-donut__value {
    font-size: var(--tools-font-size-xl);
    font-weight: 700;
}

.tools-donut__label {
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
}


/* ==========================================================================
   Score Interpretation Cards
   ========================================================================== */

.tools-interpretation {
    display: grid;
    gap: var(--tools-space-sm);
    margin: var(--tools-space-lg) 0;
}

.tools-interpretation__card {
    display: flex;
    align-items: center;
    gap: var(--tools-space-md);
    padding: var(--tools-space-md);
    background: var(--tools-bg-alt);
    border-radius: var(--tools-border-radius);
    border-left: 4px solid var(--tools-grey);
}

.tools-interpretation__card.is-current {
    background: var(--tools-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.tools-interpretation__card--low {
    border-left-color: var(--tools-green);
}

.tools-interpretation__card--medium {
    border-left-color: var(--tools-yellow);
}

.tools-interpretation__card--high {
    border-left-color: #f47738;
}

.tools-interpretation__card--very-high {
    border-left-color: var(--tools-red);
}

.tools-interpretation__range {
    font-weight: 700;
    font-size: var(--tools-font-size-sm);
    min-width: 60px;
}

.tools-interpretation__label {
    font-weight: 600;
    min-width: 100px;
}

.tools-interpretation__desc {
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
    flex: 1;
}


/* ==========================================================================
   Tables
   ========================================================================== */

.tools-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--tools-space-md) 0;
    font-size: var(--tools-font-size-sm);
}

.tools-table th,
.tools-table td {
    padding: var(--tools-space-sm);
    text-align: left;
    border-bottom: 1px solid var(--tools-border);
}

.tools-table th {
    font-weight: 700;
    background: var(--tools-bg-alt);
}

.tools-table tr:hover td {
    background: var(--tools-grey-light);
}

/* Responsive table wrapper */
.tools-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: var(--tools-space-md) 0;
}

/* Compact table */
.tools-table--compact th,
.tools-table--compact td {
    padding: var(--tools-space-xs) var(--tools-space-sm);
}

/* Striped table */
.tools-table--striped tbody tr:nth-child(even) td {
    background: var(--tools-grey-light);
}


/* ==========================================================================
   Accordion / Expandable Sections
   ========================================================================== */

.tools-accordion {
    border: 1px solid var(--tools-border);
    border-radius: var(--tools-border-radius);
    margin: var(--tools-space-md) 0;
}

.tools-accordion__item {
    border-bottom: 1px solid var(--tools-border);
}

.tools-accordion__item:last-child {
    border-bottom: none;
}

.tools-accordion__trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: var(--tools-space-md);
    font-family: inherit;
    font-size: var(--tools-font-size-sm);
    font-weight: 600;
    text-align: left;
    background: var(--tools-white);
    border: none;
    cursor: pointer;
    transition: background var(--tools-transition-fast);
}

.tools-accordion__trigger:hover {
    background: var(--tools-grey-light);
}

.tools-accordion__trigger:focus {
    outline: 3px solid var(--tools-focus);
    outline-offset: -3px;
}

.tools-accordion__icon {
    width: 20px;
    height: 20px;
    transition: transform var(--tools-transition-fast);
}

.tools-accordion__item.is-open .tools-accordion__icon {
    transform: rotate(180deg);
}

.tools-accordion__content {
    display: none;
    padding: 0 var(--tools-space-md) var(--tools-space-md);
}

.tools-accordion__item.is-open .tools-accordion__content {
    display: block;
    animation: toolsFadeIn var(--tools-transition) ease;
}


/* ==========================================================================
   Cards (Generic)
   ========================================================================== */

.tools-card {
    background: var(--tools-white);
    border: 1px solid var(--tools-border);
    border-radius: var(--tools-border-radius-lg);
    padding: var(--tools-space-md);
}

.tools-card--shadow {
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.tools-card__title {
    font-size: var(--tools-font-size-md);
    font-weight: 700;
    margin-bottom: var(--tools-space-sm);
}

.tools-card__body {
    font-size: var(--tools-font-size-sm);
}


/* ==========================================================================
   Badges / Tags
   ========================================================================== */

.tools-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: var(--tools-font-size-xs);
    font-weight: 600;
    border-radius: var(--tools-border-radius);
    background: var(--tools-grey-light);
    color: var(--tools-text);
}

.tools-badge--blue {
    background: #e8f4fc;
    color: var(--tools-blue);
}

.tools-badge--green {
    background: #e8f5ec;
    color: var(--tools-green);
}

.tools-badge--yellow {
    background: var(--tools-yellow-light);
    color: #594d00;
}

.tools-badge--red {
    background: var(--tools-red-light);
    color: var(--tools-red);
}


/* ==========================================================================
   Hero / Introduction Section
   ========================================================================== */

.tools-hero {
    padding: var(--tools-space-xl) 0;
    text-align: center;
}

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

.tools-hero__title {
    font-size: var(--tools-font-size-xxl);
    margin-bottom: var(--tools-space-sm);
}

.tools-hero__lead {
    font-size: var(--tools-font-size-md);
    color: var(--tools-text-muted);
    max-width: 600px;
    margin: 0 auto var(--tools-space-lg);
}

.tools-hero__meta {
    display: flex;
    justify-content: center;
    gap: var(--tools-space-md);
    font-size: var(--tools-font-size-xs);
    color: var(--tools-text-muted);
}

.tools-hero__meta-item {
    display: flex;
    align-items: center;
    gap: var(--tools-space-xs);
}


/* ==========================================================================
   Utility Classes
   ========================================================================== */

/* Spacing */
.tools-mt-0 { margin-top: 0; }
.tools-mt-sm { margin-top: var(--tools-space-sm); }
.tools-mt-md { margin-top: var(--tools-space-md); }
.tools-mt-lg { margin-top: var(--tools-space-lg); }
.tools-mt-xl { margin-top: var(--tools-space-xl); }

.tools-mb-0 { margin-bottom: 0; }
.tools-mb-sm { margin-bottom: var(--tools-space-sm); }
.tools-mb-md { margin-bottom: var(--tools-space-md); }
.tools-mb-lg { margin-bottom: var(--tools-space-lg); }
.tools-mb-xl { margin-bottom: var(--tools-space-xl); }

.tools-pt-0 { padding-top: 0; }
.tools-pb-0 { padding-bottom: 0; }

/* Text alignment */
.tools-text-center { text-align: center; }
.tools-text-left { text-align: left; }
.tools-text-right { text-align: right; }

/* Display */
.tools-hidden { display: none !important; }
.tools-block { display: block; }
.tools-inline { display: inline; }
.tools-inline-block { display: inline-block; }

/* Visibility (accessible hide) */
.tools-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Lists */
.tools-list-none {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tools-list-check {
    list-style: none;
    padding: 0;
}

.tools-list-check li {
    position: relative;
    padding-left: var(--tools-space-lg);
    margin-bottom: var(--tools-space-sm);
}

.tools-list-check li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--tools-green);
    font-weight: 700;
}


/* ==========================================================================
   Responsive Breakpoints Reference
   - Mobile first approach
   - sm: 480px (small phones)
   - md: 640px (large phones/small tablets)
   - lg: 768px (tablets)
   - xl: 1024px (desktops)
   ========================================================================== */

@media (max-width: 768px) {
    :root {
        --tools-font-size-xxl: 2rem;
        --tools-font-size-xl: 1.5rem;
        --tools-font-size-lg: 1.25rem;
    }
    
    .tools-hero {
        padding: var(--tools-space-lg) 0;
    }
    
    .tools-hero__meta {
        /* flex-direction: column; */
        gap: var(--tools-space-xs);
    }
}

@media (max-width: 480px) {
    :root {
        --tools-font-size-xxl: 1.75rem;
        --tools-font-size-xl: 1.375rem;
    }
    
    .tools-container {
        padding: 0 var(--tools-space-sm);
    }
    
    .tools-question-card {
        padding: var(--tools-space-md);
    }
    
    .tools-callout {
        padding: var(--tools-space-sm);
    }
}


/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .tools-navbar,
    .tools-footer,
    .tools-nav-buttons,
    .tools-btn {
        display: none !important;
    }
    
    .tools-results {
        display: block !important;
    }
    
    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }
}