/* monopole.one — three-color, single-font, slide-deck minimalism */

:root {
    --bg: #0a0a10;
    --text: #e0e0e8;
    --accent: #7c3aed;
    --text-dim: rgba(224, 224, 232, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: "Sora", system-ui, -apple-system, sans-serif;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow: hidden;
}

/* Slide container */
.deck {
    height: 100vh;
    overflow-y: scroll;
    overflow-x: hidden;
    scroll-snap-type: y mandatory;
    scroll-behavior: smooth;
    scrollbar-width: none;
}

.deck::-webkit-scrollbar {
    display: none;
}

/* Each slide is a full viewport */
.slide {
    min-height: 100vh;
    width: 100%;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem;
    position: relative;
}

.slide-inner {
    max-width: 600px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2.5rem;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 1100ms ease, transform 1100ms ease;
}

.slide.is-active .slide-inner {
    opacity: 1;
    transform: translateY(0);
}

/* Typography */
.slide-heading {
    font-family: "Sora", system-ui, sans-serif;
    font-weight: 300;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--text);
}

.hero-heading {
    letter-spacing: -0.015em;
}

.slide-body {
    font-family: "Sora", system-ui, sans-serif;
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.85;
    color: var(--text);
    max-width: 38ch;
}

.slide-body sup {
    font-size: 0.7em;
    line-height: 0;
    vertical-align: super;
}

/* Single violet dot — sole visual element per slide */
.violet-dot {
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    transform: translate(var(--dot-x, 0), var(--dot-y, 0)) scale(1);
    animation: breathe 4s ease-in-out infinite;
    box-shadow: 0 0 18px rgba(124, 58, 237, 0.35);
}

@keyframes breathe {
    0%, 100% {
        transform: translate(var(--dot-x, 0), var(--dot-y, 0)) scale(0.8);
        opacity: 0.85;
    }
    50% {
        transform: translate(var(--dot-x, 0), var(--dot-y, 0)) scale(1.2);
        opacity: 1;
    }
}

/* Right-edge page dots */
.page-dots {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.page-dots .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-dim);
    display: block;
    transition: background-color 600ms ease, transform 600ms ease;
    cursor: pointer;
    text-decoration: none;
}

.page-dots .dot.active {
    background: var(--accent);
    transform: scale(1.25);
}

/* Subtle entry fade for the very first paint */
@keyframes initialFade {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.deck {
    animation: initialFade 800ms ease both;
}

/* Reduced motion — keep the zen, drop the breathing */
@media (prefers-reduced-motion: reduce) {
    .violet-dot {
        animation: none;
        transform: translate(var(--dot-x, 0), var(--dot-y, 0));
    }
    .slide-inner {
        transition: opacity 400ms ease;
        transform: none;
    }
    .deck {
        scroll-behavior: auto;
    }
}

/* Narrow screens — keep dots visible but pull them in */
@media (max-width: 640px) {
    .page-dots {
        right: 1rem;
        gap: 0.65rem;
    }
    .slide {
        padding: 5rem 1.5rem;
    }
    .slide-inner {
        gap: 2rem;
    }
}