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

body, html {
    margin: 0; padding: 0;
    width: 100%; height: 100%;
    background-color: #000;
    color: white;
    font-family: 'Inter', sans-serif;
    overflow: hidden;
}

body {
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
body.page-loaded {
    opacity: 1;
}
body.page-leaving {
    opacity: 0;
    filter: blur(4px);
    transform: scale(0.99);
    transition: opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1), filter 0.45s ease, transform 0.45s ease;
}

/* ── Loading screen ── */
.loader {
    position: fixed; inset: 0;
    background: #000;
    z-index: 999;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.8s ease;
}
.loader.hidden {
    opacity: 0;
    pointer-events: none;
}
.loader-logo {
    width: 56px; height: 56px;
    opacity: 0;
    animation: logoFadeIn 0.6s ease 0.2s forwards;
}
@keyframes logoFadeIn {
    to { opacity: 1; }
}

/* ── Logo ── */
.site-logo {
    position: fixed;
    top: 24px; left: 28px;
    z-index: 50;
    opacity: 0.75;
    transition: opacity 0.3s;
    pointer-events: all;
    display: block;
    width: 40px; height: 40px;
}
.site-logo:hover { opacity: 1; }
.site-logo svg { width: 100%; height: 100%; }

/* ── Ripple canvas ── */
#rippleCanvas {
    position: absolute;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    display: block;
    filter: contrast(1.2) brightness(0.8);
    transition: opacity 0.8s ease;
}

/* ── Centre UI ── */
.ui-layer {
    position: fixed; inset: 0;
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    z-index: 10;
    pointer-events: none;
    text-align: center;
    padding: 0 20px;
    opacity: 0;
    transform: translateY(20px) scale(0.98);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.3s, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

body.page-loaded .ui-layer {
    opacity: 1;
    transform: translateY(0) scale(1);
}

body.transition-active .ui-layer {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

h1 {
    font-size: clamp(2rem, 10vw, 5rem);
    letter-spacing: clamp(0.3rem, 3vw, 1.5rem); /* scales down on mobile so it doesn't overflow */
    text-transform: uppercase;
    mix-blend-mode: overlay;
    margin: 0;
    width: 100%;
    text-align: center;
}

#exploreBtn {
    margin-top: 40px;
    padding: 18px 50px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.5);
    color: white;
    letter-spacing: 4px;
    cursor: pointer;
    pointer-events: all;
    transition: 0.4s;
    font-size: 0.75rem;
}
#exploreBtn:hover { background: white; color: black; }

/* ── Toast ── */
.notification-toast {
    position: fixed;
    bottom: 20px; right: 20px;
    background: rgba(30,30,30,0.92);
    border: 1px solid #333;
    padding: 12px 24px;
    font-size: 0.75rem;
    letter-spacing: 1px;
    transform: translateY(200%);
    transition: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
    border-radius: 8px;
}
.notification-toast.show { transform: translateY(0); }

/* ── Page transition ── */
.transition-overlay {
    position: fixed; inset: 0;
    background: #050505;
    z-index: 100;
    clip-path: circle(0% at 50% 50%);
    pointer-events: none;
    transition: clip-path 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}
.transition-active .transition-overlay {
    clip-path: circle(150% at 50% 50%);
}