/* ============================================================
   YLLY 2026 — Styles globaux
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-default);
    background-color: var(--color-surface-white);
    margin: 0;
}

/* --- Typographie globale --- */
h1, .h1 {
    font-size: var(--font-size-h1);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-h1);
}

h2, .h2 {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-h2);
}

h3, .h3 {
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-h3);
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
}

p { margin: 0; }

a {
    color: inherit;
    text-decoration: none;
}

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

/* --- Boutons globaux --- */
.yl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--btn-gap);
    min-height: var(--btn-height);
    min-width: var(--btn-min-width);
    padding: var(--btn-padding-y) var(--btn-padding-x);
    background-color: var(--btn-primary-bg);
    color: var(--btn-primary-color);
    border-radius: var(--btn-radius);
    font-family: var(--font-family-base);
    font-size: var(--btn-font-size);
    font-weight: var(--btn-font-weight);
    letter-spacing: var(--btn-letter-spacing);
    line-height: var(--btn-line-height);
    box-sizing: border-box;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.yl-btn:hover {
    background-color: var(--color-orange-500);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(214, 53, 0, 0.3);
}

.yl-btn:active {
    transform: translateY(0);
}

.yl-btn--outline {
    background-color: transparent;
    color: var(--color-surface-secondary);
    border: 2px solid var(--color-surface-secondary);
}

.yl-btn--outline:hover {
    background-color: var(--color-surface-secondary);
    color: var(--color-text-invert);
    box-shadow: none;
}

.yl-btn--white {
    background-color: var(--color-surface-white);
    color: var(--color-text-default);
}

.yl-btn--white:hover {
    background-color: var(--color-surface-default);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.yl-btn__icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.2);
    flex-shrink: 0;
}

/* --- Conteneur --- */
.yl-container {
    max-width: var(--container-content);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

.yl-container--wide {
    max-width: var(--container-wide);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

/* --- Animations globales --- */
@media (prefers-reduced-motion: no-preference) {
    .yl-anim-fade-up {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                    transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .yl-anim-fade-up.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

    .yl-anim-fade-in {
        opacity: 0;
        transition: opacity 0.7s ease;
    }

    .yl-anim-fade-in.is-visible {
        opacity: 1;
    }

    /* Délais en cascade */
    .yl-anim-delay-1 { transition-delay: 0.1s; }
    .yl-anim-delay-2 { transition-delay: 0.2s; }
    .yl-anim-delay-3 { transition-delay: 0.3s; }
    .yl-anim-delay-4 { transition-delay: 0.4s; }
    .yl-anim-delay-5 { transition-delay: 0.5s; }
}

/* --- Utility --- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ============================================================
   Révélation au scroll
   ------------------------------------------------------------
   La classe .yl-reveal est posée par assets/js/animations.js, jamais
   dans le markup : sans JavaScript, aucun élément n'est masqué.
   Le décalage entre les éléments d'un même bloc est porté par la
   custom property --yl-reveal-delay, écrite par le même script.
   ============================================================ */
.yl-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 600ms cubic-bezier(0.22, 0.61, 0.36, 1),
        transform 600ms cubic-bezier(0.22, 0.61, 0.36, 1);
    transition-delay: var(--yl-reveal-delay, 0ms);
    will-change: opacity, transform;
}

.yl-reveal.is-revealed {
    opacity: 1;
    transform: none;
    will-change: auto;
}

@media (prefers-reduced-motion: reduce) {
    .yl-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ── Focus : au clic, pas d'anneau ; au clavier, un anneau orange net (28/08 → 31/08/2026) ── */
:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    border-radius: 4px;
    outline: 2px solid var(--color-surface-secondary);
    outline-offset: 3px;
}