/* ============================================
   NAV — Ball, Trajectory, Header, Menu
   Agence Ping Pong
   ============================================ */

/* ---- BALL ---- */

@keyframes ball-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

.ball-container {
    position: absolute;
    top: 0;
    left: 0;
    z-index: var(--z-ball);
    pointer-events: none;
    will-change: transform;
    opacity: 0.25 !important;
}

.ball {
    display: block;
    animation: ball-spin 4s linear infinite;
}

/* ---- TRAJECTORY ---- */

.trajectory-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-ball);
    pointer-events: none;
    overflow: visible;
}

.trajectory-path {
    stroke: var(--trajectory-color);
    stroke-width: 4;
    transition: stroke var(--duration-normal) var(--ease-out);
}

/* ---- HEADER (Mac OS 7 — coloré) ---- */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    background-color: var(--color-cream);
    border-bottom: 2px solid var(--color-navy);
    border-top: 2px solid #FFFFFF;
    box-shadow: 0 2px 0 rgba(27, 42, 74, 0.15);
    padding: 6px 0;
    transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

/* Inner wrapper to constrain content to site width */
.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.site-header--scrolled {
    background-color: rgba(245, 240, 235, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 0 rgba(27, 42, 74, 0.25);
    padding: 4px 0;
    pointer-events: auto;
}

.site-header__inner > * {
    pointer-events: auto;
}

.site-header__logo {
    position: absolute;
    left: var(--container-padding);
    top: 50%;
    transform: translateY(-50%);
    z-index: 99999;
    pointer-events: auto;
}

.site-header__logo-svg {
    position: relative;
    width: clamp(60px, 8vw, 100px);
    height: clamp(60px, 8vw, 100px);
}

.site-header__logo-svg svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    transition: transform var(--duration-normal) var(--ease-bounce);
}

.site-header__logo:hover .site-header__logo-svg svg {
    transform: rotate(-10deg) scale(1.1);
}

/* ---- NAV DESKTOP (Mac OS 7 — menu bar) ---- */

.site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    height: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-inline: var(--container-padding);
}

/* Left side: text menu items */
.site-nav__menus {
    display: flex;
    align-items: center;
    margin-left: clamp(30px, 5vw, 70px);
    gap: 0;
}

/* Right side: icon buttons */
.site-nav__icons {
    display: flex;
    align-items: center;
    gap: 2px;
}

/* Menu text links — Title Case, pixel font like Mac OS 7 */
.site-nav__link {
    font-family: 'ChicagoFLF', 'Geneva', sans-serif;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-navy);
    text-decoration: none;
    text-transform: none; /* Title Case, not uppercase */
    letter-spacing: 0.02em;
    position: relative;
    padding: 0.45rem 1rem;
    border-radius: 0;
    transition:
        background-color var(--duration-fast) ease,
        color var(--duration-fast) ease;
}

/* No underline — Mac OS 7 uses highlight */
.site-nav__link::after {
    display: none;
}

/* Mac OS 7 menu highlight: navy bg + white text */
.site-nav__link:hover {
    background-color: var(--color-navy);
    color: var(--color-white);
}

.site-nav__link--active {
    background-color: var(--color-navy);
    color: var(--color-white);
}

/* ---- Icon buttons (right side) ---- */

/* Mac OS 8 clock */
.site-nav__clock {
    font-family: 'ChicagoFLF', 'Geneva', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-navy);
    padding: 0 0.6rem;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.site-header--dark .site-nav__clock {
    color: var(--color-cream);
}

/* Mac OS 8 status icons — no box, just the icon */
.site-nav__icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    padding: 0.3rem;
    background: none;
    border: none;
    box-shadow: none;
    transition: transform var(--duration-fast) ease;
}

.site-nav__icon svg {
    width: 36px;
    height: 36px;
}

.site-nav__icon:hover {
    transform: scale(1.15);
}

.site-nav__icon:active {
    transform: scale(0.92);
}

/* ---- Mac OS 8 tooltip windows ---- */

.site-nav__tooltip {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    min-width: 140px;
    background-color: var(--color-white);
    border: 2px solid var(--color-navy);
    box-shadow: 3px 3px 0 rgba(27, 42, 74, 0.3);
    z-index: 100;
    /* Hidden by default */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.95);
    transform-origin: top right;
    transition:
        opacity 0.25s var(--ease-out),
        visibility 0.25s var(--ease-out),
        transform 0.25s var(--ease-bounce);
    pointer-events: none;
}

/* Show on hover */
.site-nav__icon:hover .site-nav__tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Mac OS 8 title bar */
.site-nav__tooltip-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px;
    background: linear-gradient(to bottom, #E8E3DE, #D4CFC8);
    border-bottom: 2px solid var(--color-navy);
}

.site-nav__tooltip-close {
    width: 10px;
    height: 10px;
    border: 1.5px solid var(--color-navy);
    flex-shrink: 0;
}

.site-nav__tooltip-title {
    font-family: 'ChicagoFLF', 'Geneva', sans-serif;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-navy);
    white-space: nowrap;
}

/* Tooltip body */
.site-nav__tooltip-body {
    padding: 8px 10px;
    font-family: 'ChicagoFLF', 'Geneva', sans-serif;
    font-size: 0.7rem;
    color: var(--color-navy);
    white-space: nowrap;
    background-color: var(--color-white);
}

/* Back to top icon — hidden until scrolled */
.site-nav__icon--top {
    opacity: 0;
    visibility: hidden;
    transform: translateY(5px);
    transition:
        opacity 0.3s var(--ease-out),
        visibility 0.3s var(--ease-out),
        transform 0.3s var(--ease-out),
        background-color var(--duration-fast) ease,
        color var(--duration-fast) ease;
}

.site-nav__icon--top--visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Dark header variant — Mac OS 7 navy */
.site-header--dark {
    background-color: var(--color-navy);
    border-bottom-color: #0D1525;
    border-top-color: #3A5080;
}

.site-header--dark .site-nav__link {
    color: var(--color-cream);
}

.site-header--dark .site-nav__link:hover {
    background-color: var(--color-coral);
    color: var(--color-white);
}

.site-header--dark .site-nav__icon {
    /* Icons keep their colors on dark bg */
}

.site-header--dark .site-nav__link--cta {
    color: var(--color-white);
}

/* ---- BURGER ---- */

.site-header__burger,
.burger-btn {
    width: 36px;
    height: 28px;
    display: none;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    z-index: calc(var(--z-menu) + 1);
    position: relative;
}

.site-header__burger:focus-visible,
.burger-btn:focus-visible {
    outline: 3px solid var(--color-coral);
    outline-offset: 4px;
}

.burger-line {
    width: 100%;
    height: 3px;
    background-color: var(--color-navy);
    border-radius: 2px;
    transition:
        transform var(--duration-normal) var(--ease-out),
        opacity var(--duration-normal) var(--ease-out),
        background-color var(--duration-fast) var(--ease-out);
    transform-origin: center;
}

/* Dark header variant */
.site-header--dark .burger-line {
    background-color: var(--color-white);
}

/* Menu open: burger → X, all lines turn white */
.site-header--menu-open .burger-line:nth-child(1) {
    transform: translateY(12.5px) rotate(45deg);
    background-color: var(--color-white);
}

.site-header--menu-open .burger-line:nth-child(2) {
    opacity: 0;
    background-color: var(--color-white);
}

.site-header--menu-open .burger-line:nth-child(3) {
    transform: translateY(-12.5px) rotate(-45deg);
    background-color: var(--color-white);
}

/* ---- FULLSCREEN MENU ---- */

.fullscreen-menu {
    position: fixed;
    inset: 0;
    z-index: var(--z-menu);
    background-color: var(--color-navy);
    background-image:
        radial-gradient(circle, rgba(245, 240, 235, 0.03) 1px, transparent 1px);
    background-size: 6px 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--space-lg);
    clip-path: circle(0% at calc(100% - 3rem) 2rem);
    transition: clip-path 0.6s var(--ease-out);
    pointer-events: none;
}

.fullscreen-menu--open {
    clip-path: circle(150%);
    pointer-events: auto;
}

/* ---- Mac Window inside menu ---- */

.fullscreen-menu__window {
    width: 85%;
    max-width: 400px;
    border: 2px solid rgba(245, 240, 235, 0.3);
    background: rgba(27, 42, 74, 0.6);
    backdrop-filter: blur(4px);
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 0.4s var(--ease-out) 0.2s, transform 0.4s var(--ease-bounce) 0.2s;
}

.fullscreen-menu--open .fullscreen-menu__window {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.fullscreen-menu__titlebar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: linear-gradient(to bottom, rgba(245, 240, 235, 0.15), rgba(245, 240, 235, 0.05));
    border-bottom: 1px solid rgba(245, 240, 235, 0.15);
}

.fullscreen-menu__titlebar-btn {
    width: 10px;
    height: 10px;
    border: 1px solid rgba(245, 240, 235, 0.3);
    background: rgba(245, 240, 235, 0.1);
}

.fullscreen-menu__titlebar-btn:first-child { background: var(--color-coral); border-color: #A8252F; }
.fullscreen-menu__titlebar-btn:nth-child(2) { background: #F5C542; border-color: #C49A20; }
.fullscreen-menu__titlebar-btn:nth-child(3) { background: #2ABFBF; border-color: #1A8F8F; }

.fullscreen-menu__titlebar-title {
    font-family: 'ChicagoFLF', 'Geneva', sans-serif;
    font-size: 0.7rem;
    color: rgba(245, 240, 235, 0.6);
    margin-left: auto;
}

/* ---- MENU LIST ---- */

.fullscreen-menu__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.fullscreen-menu__item {
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(245, 240, 235, 0.08);
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}

.fullscreen-menu__item:last-child {
    border-bottom: none;
}

.fullscreen-menu--open .fullscreen-menu__item:nth-child(1) { opacity: 1; transform: translateX(0); transition-delay: 0.25s; }
.fullscreen-menu--open .fullscreen-menu__item:nth-child(2) { opacity: 1; transform: translateX(0); transition-delay: 0.33s; }
.fullscreen-menu--open .fullscreen-menu__item:nth-child(3) { opacity: 1; transform: translateX(0); transition-delay: 0.41s; }
.fullscreen-menu--open .fullscreen-menu__item:nth-child(4) { opacity: 1; transform: translateX(0); transition-delay: 0.49s; }
.fullscreen-menu--open .fullscreen-menu__item:nth-child(5) { opacity: 1; transform: translateX(0); transition-delay: 0.57s; }

/* ---- Numbers ---- */

.fullscreen-menu__num {
    font-family: 'ChicagoFLF', 'Geneva', sans-serif;
    font-size: 0.6rem;
    color: var(--color-coral);
    padding: 14px 12px;
    min-width: 36px;
    text-align: center;
    border-right: 1px solid rgba(245, 240, 235, 0.08);
    flex-shrink: 0;
}

/* ---- MENU LINKS ---- */

.fullscreen-menu__link {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 5vw, 2rem);
    font-weight: 800;
    color: var(--color-white);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    padding: 14px 16px;
    display: block;
    width: 100%;
    transition:
        background-color 0.15s ease,
        color 0.15s ease,
        padding-left 0.2s var(--ease-out);
}

.fullscreen-menu__link:hover,
.fullscreen-menu__link:active {
    background-color: var(--color-coral);
    color: var(--color-white);
    padding-left: 24px;
}

/* ---- MENU FOOTER ---- */

.fullscreen-menu__footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.4s var(--ease-out) 0.6s;
}

.fullscreen-menu--open .fullscreen-menu__footer {
    opacity: 1;
}

.fullscreen-menu__footer span {
    font-family: 'ChicagoFLF', 'Geneva', sans-serif;
    font-size: 0.65rem;
    color: rgba(245, 240, 235, 0.4);
}