/* ============================================
   FOLT — Core CSS
   Mobile-first base styles
   Brand: #ff690c (orange), #1c2b3a (navy), #fff (white)
   Font: DM Sans
   ============================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

/* ----- CSS VARIABLES ----- */
:root {
    /* Brand */
    --orange: #ff690c;
    --orange-hover: #e55d0a;
    --orange-light: rgba(255, 105, 12, 0.1);
    --navy: #1c2b3a;
    --navy-light: #2a3d52;
    --white: #ffffff;
    
    /* Neutrals */
    --grey-50: #f8f9fa;
    --grey-100: #f1f3f5;
    --grey-200: #e9ecef;
    --grey-300: #dee2e6;
    --grey-400: #ced4da;
    --grey-500: #adb5bd;
    --grey-600: #868e96;
    --grey-700: #495057;
    --grey-800: #343a40;
    --grey-900: #212529;
    
    /* Semantic */
    --success: #2ecc71;
    --warning: #f39c12;
    --danger: #e74c3c;
    --info: #3498db;
    
    /* Scoring */
    --score-red: #e74c3c;
    --score-amber: #f39c12;
    --score-green: #2ecc71;
    
    /* Typography */
    --font-main: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    
    /* Sizing */
    --container-max: 1140px;
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    
    /* Transitions */
    --transition: 0.2s ease;
}

/* ----- BASE TYPOGRAPHY ----- */
body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--grey-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--navy);
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

/* Scale up on desktop */
@media (min-width: 768px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.4rem; }
}

p { margin-bottom: var(--space-md); }

a {
    color: var(--orange);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover { color: var(--orange-hover); }

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

/* ----- LAYOUT ----- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

@media (min-width: 768px) {
    .container { padding: 0 var(--space-lg); }
}

.section {
    padding: var(--space-2xl) 0;
}

@media (min-width: 768px) {
    .section { padding: var(--space-3xl) 0; }
}

/* ----- GRID ----- */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ----- NAVIGATION ----- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--navy);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: var(--space-sm) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
}

.nav-logo {
    display: flex;
    align-items: center;
    padding-left: 1rem;
}

@media (min-width: 768px) {
    .nav-logo {
        padding-left: 0;
    }
}

.logo-img {
    height: 60px;
    width: auto;
}

.nav-main {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy);
    padding: var(--space-md);
    border-top: 1px solid rgba(255,255,255,0.08);
    flex-direction: column;
    gap: var(--space-xs);
}

.nav-main.open {
    display: flex;
}

.nav-link {
    color: rgba(255,255,255,0.75);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.08);
}

.nav-admin { color: var(--orange) !important; }

.nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--white);
    border-radius: 1px;
    transition: all var(--transition);
}

.hamburger { position: relative; }

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

/* Hamburger animation */
.nav-toggle[aria-expanded="true"] .hamburger { background: transparent; }
.nav-toggle[aria-expanded="true"] .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .hamburger::after { top: 0; transform: rotate(-45deg); }

/* Desktop nav */
@media (min-width: 768px) {
    .nav-main {
        display: flex;
        position: static;
        flex-direction: row;
        align-items: center;
        background: none;
        padding: 0;
        border: none;
        gap: var(--space-xs);
    }
    
    .nav-toggle { display: none; }
}

/* ----- FOOTER ----- */
.site-footer {
    background: var(--navy);
    color: rgba(255,255,255,0.6);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-logo-col { text-align: center; }

.footer-logo {
    height: 60px;
    width: auto;
    margin: 0 auto;
}

.footer-col { text-align: center; }

.footer-col h4 {
    color: var(--white);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-sm);
}

.footer-col a {
    display: block;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    padding: var(--space-xs) 0;
}

.footer-col a:hover { color: var(--white); }


@media (min-width: 640px) {
    .footer-grid {
        flex-direction: row;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 80px;
    }
    .footer-logo-col { text-align: left; }
    .footer-logo { margin: 0; height: 80px; }
    .footer-col { text-align: left; }
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-lg);
    text-align: center;
    font-size: 0.8rem;
}

.footer-bottom p { margin: 0; }

/* ----- FORMS ----- */
input, select, textarea {
    font-family: var(--font-main);
    font-size: 16px; /* Prevents iOS zoom */
}

/* ----- UTILITIES ----- */
.text-center { text-align: center; }
.text-orange { color: var(--orange); }
.text-navy { color: var(--navy); }
.text-muted { color: var(--grey-600); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.hidden { display: none !important; }

/* =============================================
   HOMEPAGE PATCHES — Add to core.css
   ============================================= */

/* Fix white bar below footer — apply navy bg to html */
html {
    background-color: #1c2b3a;
}

/* Hide make & model link until feature is active */
.make-model-link,
a[href*="make-model"],
.search-alt-link {
    display: none !important;
}

/* Footer credit */
.footer-credit {
    text-align: center;
    padding: 12px 0 16px;
    font-size: 0.72rem;
    color: rgba(255,255,255,0.35);
}
.footer-credit a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
}
.footer-credit a:hover {
    color: var(--orange, #ff690c);
}

form + p.text-muted { display: none !important; }