/* ============================================
   My Car Has Issues — Mobile-First CSS
   ============================================ */

/* --- Custom Properties --- */
:root {
    --color-primary: #1B4965;
    --color-primary-dark: #143a52;
    --color-accent: #FFB703;
    --color-accent-hover: #e6a503;
    --color-light: #F7F7F8;
    --color-dark: #1A1A2E;
    --color-muted: #6b7280;
    --color-border: #e5e7eb;
    --color-white: #ffffff;

    --color-urgency-info: #22C55E;
    --color-urgency-low: #3B82F6;
    --color-urgency-moderate: #F59E0B;
    --color-urgency-high: #F97316;
    --color-urgency-critical: #EF4444;

    --color-safe-yes: #16a34a;
    --color-safe-caution: #d97706;
    --color-safe-no: #dc2626;

    --font-heading: 'Nunito', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-size-base: 18px;
    --font-size-sm: 0.85rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --line-height: 1.6;
    --line-height-tight: 1.3;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    --touch-target: 44px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-pill: 9999px;

    --shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.06);
    --shadow: 0 4px 12px rgba(26, 26, 46, 0.08);
    --shadow-lg: 0 8px 24px rgba(26, 26, 46, 0.12);

    --container-max: 1140px;
    --content-max: 720px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: var(--font-size-base); -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: var(--line-height);
    color: var(--color-dark);
    background: var(--color-light);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: var(--line-height-tight);
    margin: 0 0 var(--spacing-md);
}
h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }

p { margin: 0 0 var(--spacing-md); }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
img { max-width: 100%; height: auto; }

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

/* --- Site Header --- */
.site-header {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.site-header a { color: var(--color-white); }
.site-header a:hover { color: var(--color-accent); text-decoration: none; }

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: var(--font-size-lg);
    white-space: nowrap;
}

.logo-icon { flex-shrink: 0; }

.logo-text {
    display: none;
}

@media (min-width: 480px) {
    .logo-text { display: inline; }
}

/* --- Site Nav --- */
.site-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: var(--touch-target);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: background 0.15s;
}

.site-nav a:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* --- Hero --- */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #256390 50%, #2a7ca0 100%);
    color: var(--color-white);
    padding: var(--spacing-2xl) var(--spacing-lg);
    text-align: center;
}

.hero h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.hero__subtitle {
    max-width: 36rem;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
    font-size: var(--font-size-lg);
}

@media (min-width: 768px) {
    .hero {
        padding: var(--spacing-3xl) var(--spacing-xl);
    }
    .hero h1 {
        font-size: var(--font-size-3xl);
    }
}

/* --- Disclaimer Banner --- */
.disclaimer-banner {
    background: rgba(27, 73, 101, 0.07);
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-muted);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin: var(--spacing-lg) 0;
}

.disclaimer-banner p { margin: 0; }

/* --- Section --- */
.section {
    margin: var(--spacing-xl) 0;
}

.section__title {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
}

.section__intro {
    color: var(--color-muted);
    font-size: var(--font-size-md);
}

.section-header {
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.section-header h1 {
    color: var(--color-primary);
}

.section-header p {
    color: var(--color-muted);
    font-size: var(--font-size-lg);
}

/* --- Category Header --- */
.category-header {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    text-align: center;
}

.category-header__icon {
    display: block;
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.category-header h1 {
    color: var(--color-primary);
}

.category-header p {
    color: var(--color-muted);
    max-width: var(--content-max);
    margin-left: auto;
    margin-right: auto;
}

/* --- Card Grid --- */
.card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

@media (min-width: 640px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
}

/* --- Card --- */
.card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    color: inherit;
    min-height: var(--touch-target);
    border: 1px solid var(--color-border);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

.card:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.card__icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.card__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.card__desc {
    font-size: var(--font-size-sm);
    color: var(--color-muted);
    flex: 1;
    margin-bottom: var(--spacing-sm);
}

.card__count {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 600;
    margin-top: auto;
}

.card__top-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.card__top-row .card__title {
    margin-bottom: 0;
}

.card__bottom-row {
    margin-top: auto;
    padding-top: var(--spacing-sm);
}

.card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.card__time {
    font-size: var(--font-size-sm);
    color: var(--color-muted);
}

.card__tools {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-muted);
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

/* --- Light Icon --- */
.card__icon-row {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.card__icon-row picture {
    display: inline-block;
    line-height: 0;
}

.card__light-icon {
    height: 64px;
    width: auto;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
}

.detail-header picture {
    display: inline-block;
    line-height: 0;
}

.detail-header__icon {
    height: 96px;
    width: auto;
    object-fit: contain;
    margin-bottom: var(--spacing-sm);
    image-rendering: -webkit-optimize-contrast;
}

/* --- Urgency Badge --- */
.urgency-badge {
    display: inline-block;
    padding: 0.2em 0.7em;
    border-radius: var(--radius-pill);
    font-size: var(--font-size-sm);
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.urgency-badge--large {
    font-size: var(--font-size-md);
    padding: 0.35em 1em;
}

.urgency-info {
    background: #dcfce7;
    color: #15803d;
}
.urgency-low {
    background: #dbeafe;
    color: #1d4ed8;
}
.urgency-moderate {
    background: #fef3c7;
    color: #b45309;
}
.urgency-high {
    background: #ffedd5;
    color: #c2410c;
}
.urgency-critical {
    background: #fee2e2;
    color: #dc2626;
}

/* --- Safe Badge --- */
.safe-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3em;
    padding: 0.2em 0.6em;
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.safe-badge--yes {
    background: #dcfce7;
    color: #15803d;
}
.safe-badge--caution {
    background: #fef3c7;
    color: #b45309;
}
.safe-badge--no {
    background: #fee2e2;
    color: #dc2626;
}

/* --- Drive Callout --- */
.drive-callout {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 6px solid;
    margin: var(--spacing-lg) 0;
}

.drive-callout__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.drive-callout__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.drive-callout__advice {
    margin-bottom: var(--spacing-sm);
}

.drive-callout__reminder {
    font-size: var(--font-size-sm);
    color: var(--color-muted);
    margin-bottom: 0;
}

.drive-callout--yes {
    background: #f0fdf4;
    border-left-color: var(--color-safe-yes);
}
.drive-callout--caution {
    background: #fffbeb;
    border-left-color: var(--color-safe-caution);
}
.drive-callout--no {
    background: #fef2f2;
    border-left-color: var(--color-safe-no);
}

.drive-callout--no .drive-callout__header {
    color: var(--color-safe-no);
}

/* --- Detail Page --- */
.detail-page {
    max-width: var(--content-max);
    margin: 0 auto;
    padding-bottom: var(--spacing-2xl);
}

.detail-header {
    padding: var(--spacing-xl) 0;
}

.detail-header h1 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.detail-header__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-sm);
}

.meta-item {
    font-size: var(--font-size-sm);
    color: var(--color-muted);
}

/* --- Content Section --- */
.content-section {
    padding: var(--spacing-xl) 0;
}

.content-section h2 {
    color: var(--color-primary);
}

/* --- Action Section --- */
.action-section {
    border-left: 4px solid var(--color-accent);
    background: #fffdf5;
    padding: var(--spacing-lg);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    margin: var(--spacing-lg) 0;
}

.action-section h2 {
    color: var(--color-primary);
}

/* --- Breadcrumb --- */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4em;
    font-size: var(--font-size-sm);
    padding: var(--spacing-md) 0;
    color: var(--color-muted);
}

.breadcrumb a {
    color: var(--color-primary);
}

/* --- Difficulty Badge --- */
.difficulty-badge {
    display: inline-block;
    padding: 0.2em 0.65em;
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.difficulty-badge--easy {
    background: #dcfce7;
    color: #15803d;
}
.difficulty-badge--moderate {
    background: #fef3c7;
    color: #b45309;
}

/* --- Tools Box --- */
.tools-box {
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.tools-box h2 {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.tools-box p { margin: 0; }

/* --- Tip Content --- */
.tip-content {
    font-size: var(--font-size-md);
    line-height: var(--line-height);
}

/* --- Button --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--touch-target);
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--font-size-md);
    text-decoration: none;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn:hover { text-decoration: none; }

.btn--outline {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: transparent;
}

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

/* --- Ad Containers --- */
.ad-container {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.ad-container--top-banner {
    background: var(--color-light);
    padding: var(--spacing-sm) 0;
}

.ad-container--in-feed {
    padding: var(--spacing-sm) 0;
}

.ad-container--mid-content {
    padding: var(--spacing-lg) 0;
}

.ad-container--sidebar {
    display: none;
}

@media (min-width: 1024px) {
    .ad-container--sidebar {
        display: block;
        padding: var(--spacing-md);
    }
}

.ad-container--bottom-anchor {
    position: sticky;
    bottom: 0;
    z-index: 50;
    background: var(--color-white);
    box-shadow: 0 -2px 8px rgba(0,0,0,0.08);
}

@media (min-width: 768px) {
    .ad-container--bottom-anchor {
        display: none;
    }
}

/* --- Site Footer --- */
.site-footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-2xl);
}

.site-footer a { color: var(--color-accent); }
.site-footer a:hover { text-decoration: underline; }

.footer-disclaimer {
    font-size: var(--font-size-sm);
    opacity: 0.85;
    line-height: var(--line-height);
    margin-bottom: var(--spacing-md);
}

.footer-disclaimer p { margin: 0; }

.footer-copyright {
    font-size: var(--font-size-sm);
    opacity: 0.6;
    margin: var(--spacing-md) 0 0;
}

/* --- Desktop Detail Sidebar Layout --- */
@media (min-width: 1024px) {
    .detail-page {
        max-width: none;
        display: grid;
        grid-template-columns: 1fr 280px;
        gap: var(--spacing-xl);
    }

    .detail-header,
    .drive-callout,
    .content-section,
    .action-section,
    .tools-box,
    .disclaimer-banner {
        grid-column: 1;
    }

    .detail-sidebar-wrapper {
        grid-column: 2;
        grid-row: 1 / -1;
        position: sticky;
        top: calc(var(--touch-target) + var(--spacing-xl) + var(--spacing-md));
        align-self: start;
    }
}

/* --- Utilities --- */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }

/* --- Print --- */
@media print {
    .site-header,
    .site-nav,
    .site-footer,
    .ad-container,
    .detail-sidebar-wrapper {
        display: none !important;
    }
    body { background: white; }
    .card { box-shadow: none; border: 1px solid #ccc; }
    .card:hover { transform: none; }
}