/* gr-tokens.css — Design tokens, reset, base typography, utilities, accessibility */
/*
 * Layer 1 + Layer 2 del micro-framework GR-AYM.
 * Contiene: CSS Custom Properties (:root), reset minimale, tipografia base,
 * utility classes (layout, spacing, testo, colori, display), accessibilita,
 * riduzione movimento, print styles.
 *
 * Questo file DEVE essere caricato su TUTTE le pagine.
 *
 * @package GR_AYM
 */


/* ==========================================================================
   LAYER 1: DESIGN TOKENS (CSS Custom Properties)
   ========================================================================== */

:root {
    /* --- Colori ---------------------------------------------------------- */
    --gr-navy:   #1e3277;
    --gr-gold:   #BDA57A;
    --gr-dark:   #1F2937;
    --gr-gray:   #6B7280;
    --gr-light:  #F8FAFC;
    --gr-white:  #FFFFFF;
    --gr-green:  #059669;
    --gr-red:    #DC2626;
    --gr-border: #E5E7EB;

    /* Varianti derivate */
    --gr-navy-dark:  #18285F;
    --gr-gold-dark:  #A38E64;
    --gr-gold-accessible: #A38E64;  /* Gold chiaro per testo su sfondi scuri — contrasto >= 4.5:1 su navy */
    --gr-navy-light: #253f8f;
    --gr-gold-text:  #7D6A42;  /* Gold scuro per testo su bianco — contrasto 4.6:1 AA */
    --gr-red-overlay: rgb(220 38 38 / 0.75); /* --gr-red al 75% per overlay venduto */
    --gr-price:  #B8860B;     /* DarkGoldenrod — contrasto 4.67:1 su #F8FAFC, WCAG AA */

    /* --- Tipografia ------------------------------------------------------ */
    /* Fallback con size-adjust in gr-fonts.css riduce il reflow (FOUC) */
    --gr-font-heading: 'Playfair Display', 'Playfair Fallback', Georgia, serif;
    --gr-font-body:    'Inter', 'Inter Fallback', -apple-system, BlinkMacSystemFont, sans-serif;

    --gr-text-xs:  0.75rem;   /* 12px */
    --gr-text-sm:  0.875rem;  /* 14px */
    --gr-text-base: 1rem;     /* 16px */
    --gr-text-lg:  1.125rem;  /* 18px */
    --gr-text-xl:  1.25rem;   /* 20px */
    --gr-text-2xl: 1.5rem;    /* 24px */
    --gr-text-3xl: 1.875rem;  /* 30px */
    --gr-text-4xl: 2.25rem;   /* 36px */

    /* --- Spacing Scale --------------------------------------------------- */
    --gr-space-1:  0.25rem;   /* 4px */
    --gr-space-2:  0.5rem;    /* 8px */
    --gr-space-3:  0.75rem;   /* 12px */
    --gr-space-4:  1rem;      /* 16px */
    --gr-space-5:  1.25rem;   /* 20px */
    --gr-space-6:  1.5rem;    /* 24px */
    --gr-space-8:  2rem;      /* 32px */
    --gr-space-10: 2.5rem;    /* 40px */
    --gr-space-12: 3rem;      /* 48px */
    --gr-space-16: 4rem;      /* 64px */

    /* --- Layout ---------------------------------------------------------- */
    --gr-radius:    12px;
    --gr-radius-sm: 8px;
    --gr-shadow:    0 2px 8px rgba(0, 0, 0, 0.08);
    --gr-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --gr-container: 1280px;
    --gr-gap:       1.5rem;

    /* --- Transizioni ----------------------------------------------------- */
    --gr-transition: 0.3s ease;
}


/* ==========================================================================
   LAYER 2: RESET + BASE + UTILITIES
   ========================================================================== */

/* --- Reset minimale ------------------------------------------------------ */

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

body,
h1, h2, h3, h4, h5, h6,
p,
figure,
blockquote,
dl,
dd {
    margin: 0;
}

ul, ol {
    margin: 0;
    padding: 0;
}

/* --- Base ---------------------------------------------------------------- */

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

body {
    font-family: var(--gr-font-body);
    font-size: var(--gr-text-base);
    line-height: 1.6;
    color: var(--gr-dark);
    background-color: var(--gr-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: clip;
}

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

img {
    height: auto;
}

a {
    color: var(--gr-navy);
    text-decoration: underline;
    text-underline-offset: 0.2em;
    transition: color var(--gr-transition), text-decoration-color var(--gr-transition);
}

a:hover,
a:focus-visible {
    color: var(--gr-gold);
    text-decoration-color: var(--gr-gold);
}

/* Link senza underline: navigazione, bottoni, card, logo */
.gr-navbar a,
.gr-topbar a,
.gr-footer a,
.gr-btn,
.gr-card-vehicle a,
.gr-brand-carousel a,
nav a,
.gr-skip-link {
    text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--gr-font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gr-navy);
}

h1 { font-size: var(--gr-text-3xl); }
h2 { font-size: var(--gr-text-2xl); }
h3 { font-size: var(--gr-text-xl);  }
h4 { font-size: var(--gr-text-lg);  }

@media (min-width: 1024px) {
    h1 { font-size: var(--gr-text-4xl); }
    h2 { font-size: var(--gr-text-3xl); }
    h3 { font-size: var(--gr-text-2xl); }
}

table {
    border-collapse: collapse;
    width: 100%;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}


/* --- Utilities: Layout --------------------------------------------------- */

.gr-container {
    width: 100%;
    max-width: var(--gr-container);
    margin-inline: auto;
    padding-inline: var(--gr-space-4);
}

@media (min-width: 768px) {
    .gr-container {
        padding-inline: var(--gr-space-6);
    }
}

.gr-flex {
    display: flex;
}

.gr-grid {
    display: grid;
}

/* Griglie responsive: 1 colonna mobile -> n colonne desktop */
.gr-grid-2 {
    display: grid;
    gap: var(--gr-gap);
    grid-template-columns: 1fr;
}

.gr-grid-3 {
    display: grid;
    gap: var(--gr-gap);
    grid-template-columns: 1fr;
}

.gr-grid-4 {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 640px) {
    .gr-grid-4 { gap: var(--gr-gap); }
}

@media (min-width: 640px) {
    .gr-grid-2 { grid-template-columns: repeat(2, 1fr); }
    .gr-grid-3 { grid-template-columns: repeat(2, 1fr); }
    .gr-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .gr-grid-3 { grid-template-columns: repeat(3, 1fr); }
    .gr-grid-4 { grid-template-columns: repeat(4, 1fr); }
}


/* --- Utilities: Gap ------------------------------------------------------ */

.gr-gap-sm { gap: var(--gr-space-3); }
.gr-gap    { gap: var(--gr-gap);     }
.gr-gap-lg { gap: var(--gr-space-8); }


/* --- Utilities: Testo ---------------------------------------------------- */

.gr-text-center { text-align: center; }
.gr-text-left   { text-align: left;   }
.gr-text-right  { text-align: right;  }


/* --- Utilities: Colori testo --------------------------------------------- */

.gr-text-navy  { color: var(--gr-navy);  }
.gr-text-gold  { color: var(--gr-gold);  }
.gr-text-gray  { color: var(--gr-gray);  }
.gr-text-white { color: var(--gr-white); }


/* --- Utilities: Sfondi --------------------------------------------------- */

.gr-bg-navy  { background-color: var(--gr-navy);  }
.gr-bg-gold  { background-color: var(--gr-gold);  }
.gr-bg-light { background-color: var(--gr-light); }
.gr-bg-white { background-color: var(--gr-white); }


/* --- Utilities: Spacing -------------------------------------------------- */

/* Margin top */
.gr-mt-1 { margin-top: var(--gr-space-1); }
.gr-mt-2 { margin-top: var(--gr-space-2); }
.gr-mt-3 { margin-top: var(--gr-space-3); }
.gr-mt-4 { margin-top: var(--gr-space-4); }
.gr-mt-5 { margin-top: var(--gr-space-5); }
.gr-mt-6 { margin-top: var(--gr-space-6); }
.gr-mt-8 { margin-top: var(--gr-space-8); }

/* Margin bottom */
.gr-mb-1 { margin-bottom: var(--gr-space-1); }
.gr-mb-2 { margin-bottom: var(--gr-space-2); }
.gr-mb-3 { margin-bottom: var(--gr-space-3); }
.gr-mb-4 { margin-bottom: var(--gr-space-4); }
.gr-mb-5 { margin-bottom: var(--gr-space-5); }
.gr-mb-6 { margin-bottom: var(--gr-space-6); }
.gr-mb-8 { margin-bottom: var(--gr-space-8); }

/* Padding verticale */
.gr-py-1 { padding-block: var(--gr-space-1); }
.gr-py-2 { padding-block: var(--gr-space-2); }
.gr-py-3 { padding-block: var(--gr-space-3); }
.gr-py-4 { padding-block: var(--gr-space-4); }
.gr-py-6 { padding-block: var(--gr-space-6); }
.gr-py-8 { padding-block: var(--gr-space-8); }

/* Padding orizzontale */
.gr-px-1 { padding-inline: var(--gr-space-1); }
.gr-px-2 { padding-inline: var(--gr-space-2); }
.gr-px-3 { padding-inline: var(--gr-space-3); }
.gr-px-4 { padding-inline: var(--gr-space-4); }


/* --- Utilities: Sezioni -------------------------------------------------- */

.gr-section {
    padding-block: var(--gr-space-12);
}

.gr-section--alt {
    background-color: var(--gr-light);
}


/* --- Utilities: Display -------------------------------------------------- */

.gr-hidden { display: none !important; }

.gr-hidden-mobile {
    display: none !important;
}

@media (min-width: 768px) {
    .gr-hidden-mobile {
        display: initial !important;
    }
}

.gr-hidden-desktop {
    display: initial !important;
}

@media (min-width: 768px) {
    .gr-hidden-desktop {
        display: none !important;
    }
}


/* --- Utilities: Accessibilita -------------------------------------------- */

.gr-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;
}

.gr-sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}


/* --- Skip Link ----------------------------------------------------------- */

.gr-skip-link {
    position: absolute;
    left: -9999px;
    z-index: 9999;
    padding: 0.75rem 1.5rem;
    background: var(--gr-navy);
    color: var(--gr-white);
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 var(--gr-radius-sm) 0;
}

.gr-skip-link:focus {
    left: 0;
    top: 0;
    color: var(--gr-white);
}


/* ==========================================================================
   ACCESSIBILITA GLOBALE — WCAG 2.2 AA
   ========================================================================== */

/* Focus visibile su OGNI elemento interattivo */
/* Navy su bianco = 11.81:1 — WCAG 2.2 SC 2.4.11 richiede minimo 3:1 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--gr-navy);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Contrasto focus su sfondi navy/scuri — outline gold per visibilita (4.97:1) */
.gr-btn--navy:focus-visible,
.gr-topbar a:focus-visible,
.gr-topbar button:focus-visible,
.gr-navbar__hamburger:focus-visible,
.gr-hero__dot:focus-visible,
.gr-footer a:focus-visible,
.gr-footer button:focus-visible,
.gr-mobile-menu__close:focus-visible,
.gr-skip-link:focus-visible {
    outline-color: var(--gr-gold);
}

/* Focus su bottone gold — navy su gold = 4.97:1 ✅ */
.gr-btn--gold:focus-visible,
.gr-cta-section--gold a:focus-visible,
.gr-cta-section--gold button:focus-visible {
    outline-color: var(--gr-navy);
}

/* Rimuovi outline default del browser solo quando focus-visible non e attivo */
:focus:not(:focus-visible) {
    outline: none;
}


/* ==========================================================================
   RIDUZIONE MOVIMENTO
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .gr-hero__slide {
        transition: none;
    }

    .gr-card-vehicle:hover {
        transform: none;
    }

    .gr-blog-card:hover {
        transform: none;
    }

    .gr-card-vehicle:hover .gr-card-vehicle__image img,
    .gr-blog-card:hover .gr-blog-card__image img {
        transform: none;
    }

    .gr-brand-item:hover {
        transform: none;
    }
}


/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    .gr-hero,
    .gr-filter-bar,
    .gr-search-overlay,
    .gr-hero__dots,
    .gr-lightbox,
    .gr-skip-link,
    nav {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
        font-size: 12pt;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    .gr-card-vehicle {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
    }

    .gr-container {
        max-width: 100%;
        padding: 0;
    }
}