/* =======================
   Variables & base
======================= */

:root {
    --color-bg: #f3f4f6;              /* gris très clair */
    --color-surface: #ffffff;         /* cartes / sections */
    --color-surface-alt: #f9fafb;
    --color-border: #e5e7eb;
    --color-primary: #2563eb;         /* bleu principal */
    --color-primary-soft: #1d4ed8;
    --color-text: #111827;            /* texte principal */
    --color-text-muted: #4b5563;      /* texte secondaire */
    --color-accent: #15803d;          /* vert pour "gratuit" */
    --color-error: #b91c1c;

    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-soft: 0 14px 30px rgba(15, 23, 42, 0.08);
    --shadow-subtle: 0 18px 40px rgba(15, 23, 42, 0.09);

    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

/* Motif vidéoludique par-dessus le dégradé de fond */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;

    background-image: url("img/bg-gaming.svg");
    background-repeat: repeat;
    background-size: 220px 220px;
    opacity: 0.5; 
}

body {
    margin: 0;
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.6;

    /* Fond vidéoludique : 4 halos colorés + quadrillage visible */
    background-color: #020617;
    background-image:
        radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.60) 0, transparent 55%),
        radial-gradient(circle at 100% 0, rgba(244, 63, 94, 0.55) 0, transparent 55%),
        radial-gradient(circle at 0 100%, rgba(52, 211, 153, 0.55) 0, transparent 55%),
        radial-gradient(circle at 100% 100%, rgba(129, 140, 248, 0.55) 0, transparent 55%),
        repeating-linear-gradient(
            to right,
            rgba(148, 163, 184, 0.18) 0,
            rgba(148, 163, 184, 0.18) 1px,
            transparent 1px,
            transparent 40px
        ),
        repeating-linear-gradient(
            to bottom,
            rgba(148, 163, 184, 0.18) 0,
            rgba(148, 163, 184, 0.18) 1px,
            transparent 1px,
            transparent 40px
        );

    background-attachment: fixed;
    background-size: auto, auto, auto, auto, 40px 40px, 40px 40px;
}


/* =======================
   Liens, focus & accessibilité
======================= */

a {
    color: var(--color-primary-soft);
    text-decoration: none;
}

a:hover,
a:focus-visible {
    text-decoration: underline;
}

:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
}

/* Lien d’évitement */
.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    padding: 0.5rem 1rem;
    background: #f97316;
    color: #111827;
    font-weight: 600;
    z-index: 1000;
}

.skip-link:focus-visible {
    left: 1rem;
    top: 1rem;
}

.no-wrap {
    white-space: nowrap;
}

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

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* =======================
   Header & navbar
======================= */

header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    position: relative;
    z-index: 10;
}

/* Barre de navigation principale */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0 0.75rem;
    gap: 1rem;
}

/* Logo dans la navbar */
.logo-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 42px;
    width: auto;
    display: block;
}

/* Titre principal (H1) dans la navbar */
.navbar-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
    white-space: nowrap;
    text-align: center;
    flex: 1;
}

/* Sélecteur de langue */
.lang-switch {
    display: inline-flex;
    background: var(--color-surface-alt);
    border-radius: 999px;
    padding: 0.12rem;
    border: 1px solid var(--color-border);
}

.lang-btn {
    border-radius: 999px;
    border: none;
    padding: 0.25rem 0.8rem;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    background: transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    text-decoration: none;
}

.lang-btn-active {
    background: var(--color-primary);
    color: #f9fafb;
    font-weight: 600;
    box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.15);
}

/* =======================
   Hero (bandeau haut)
======================= */

.hero {
    padding: 2.25rem 0 2.75rem;
    text-align: left;
}

/* Bloc infos (DATE, LIEU, TARIF) */

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.cta-box {
    flex: 1 1 220px;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: 1.2rem 1.4rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.cta-label {
    font-size: 1.1rem;     
    font-weight: 700;     
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
}

.cta-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
}

.cta-sub {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

.cta-free {
    color: var(--color-accent);
}

/* =======================
   Sections principales
======================= */

/* Illustration au-dessus de "Objectif du salon" */
.section-illustration {
    display: block;
    max-width: 100%;
    width: 100%;
    height: auto;         
    object-fit: contain;   
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}


.section-main,
.section-program,
.section-about {
    margin: 2.5rem 0;
    padding: 2rem 1.5rem;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-subtle);
}

.section-main h2,
.section-program h2,
.section-about h2 {
    margin-top: 0;
    font-size: 1.6rem;
}

.section-text p {
    margin-top: 0.5rem;
}

.section-text ul {
    margin: 0.75rem 0 0.75rem 1.3rem;
    padding: 0;
}

.section-text li {
    margin-bottom: 0.4rem;
}

.highlight {
    font-style: italic;
    font-weight: 500;
    margin: 0.5rem 0 1rem;
    color: var(--color-primary-soft);
}

/* =======================
   Programme
======================= */

.section-program .helper {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
}

.program-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.program-item {
    background: var(--color-surface-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: 1.1rem 1.3rem;
}

.program-item h3 {
    margin-top: 0;
    margin-bottom: 0.35rem;
    font-size: 1.1rem;
}

.program-time {
    margin: 0 0 0.6rem;
    font-size: 1.1rem;     
    font-weight: 600;
    color: var(--color-primary-soft);
}

/* =======================
   Contact & formulaire
======================= */

.section-about .helper {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.about-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1rem;
}

.about-text p {
    margin-top: 0;
    margin-bottom: 0.75rem;
}

/* Bloc formulaire */

.contact-form {
    background: var(--color-surface-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: 1.1rem 1.3rem 1.4rem;
}

.contact-form h3 {
    margin-top: 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem 1rem;
    margin-top: 0.7rem;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.form-field-full {
    grid-column: 1 / -1;
}

label {
    font-size: 0.95rem;
}

input,
select,
textarea {
    border-radius: 10px;
    border: 1px solid #9ca3af;
    padding: 0.55rem 0.65rem;
    background: #ffffff;
    color: var(--color-text);
    font: inherit;
}

input::placeholder,
textarea::placeholder {
    color: #6b7280;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
    border-color: transparent;
}

/* =======================
   Boutons
======================= */

.btn {
    align-self: flex-start;
    padding: 0.65rem 1.5rem;
    border-radius: 999px;
    border: none;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-soft) 100%);
    color: #f9fafb;
    font-weight: 600;
    font-size: 0.98rem;
    cursor: pointer;
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.35);
    transition: transform 0.08s ease-out, box-shadow 0.08s ease-out, filter 0.08s;
}

.btn:hover {
    filter: brightness(1.03);
    box-shadow: 0 18px 34px rgba(37, 99, 235, 0.45);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.35);
}

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

footer {
    border-top: 1px solid var(--color-border);
    padding: 1.2rem 0 1.5rem;
    background: var(--color-surface);
    margin-top: 2rem;
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.footer-links {
    list-style: none;
    display: flex;
    gap: 1rem;
    margin: 0;
    padding: 0;
}

.footer-links a {
    font-size: 0.9rem;
}

/* Plan du site */
.sitemap-list {
    list-style: none;
    padding-left: 0;
    margin-left: 0;
}

.sitemap-list > li {
    margin-bottom: 0.75rem;
}

.sitemap-list > li > a {
    font-weight: 600;
}

.sitemap-list ul {
    margin-top: 0.25rem;
    margin-left: 1.5rem;
    list-style: disc;
}


/* =======================
   Responsive
======================= */

/* Masquer le H1 dans la navbar si l'écran est trop petit */
@media (max-width: 820px) {
    .navbar-title {
        display: none;
    }
}

/* Réorganisation globale sur écrans moyens/petits */
@media (max-width: 900px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .program-grid {
        grid-template-columns: 1fr;
    }
}

/* Petits écrans */
@media (max-width: 600px) {
    .cta-row {
        flex-direction: column;
    }

    .section-main,
    .section-program,
    .section-about {
        padding: 1.5rem 1.25rem;
        margin: 1.75rem 0;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        flex-direction: column;
        align-items: flex-start;
    }
}