/* continu.st - The Unbroken Line */

:root {
    --deep-graphite: #1c1c22;
    --trace-teal: #3a9e8f;
    --signal-amber: #d4a053;
    --ember-rose: #c45c5c;
    --pale-ash: #e2dfd8;
    --muted-stone: #8a8680;
    --phosphor-green: #6be8a4;
}

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

body {
    background: var(--deep-graphite);
    color: var(--pale-ash);
    font-family: 'Literata', serif;
    font-weight: 400;
    font-size: clamp(1rem, 1.2vw, 1.125rem);
    line-height: 1.72;
    letter-spacing: 0.005em;
    overflow-x: hidden;
    /* Subtle noise texture */
    background-image: url("data:image/svg+xml,%3Csvg width='4' height='4' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='1' cy='1' r='0.5' fill='%23ffffff' opacity='0.02'/%3E%3C/svg%3E");
}

/* Domain ghost - rotated left edge */
.domain-ghost {
    position: fixed;
    left: 8px;
    top: 50%;
    transform: translateY(-50%) rotate(-90deg);
    transform-origin: center center;
    font-family: 'Anybody', sans-serif;
    font-weight: 300;
    font-size: clamp(14px, 1.5vw, 18px);
    letter-spacing: 0.5em;
    color: var(--pale-ash);
    opacity: 0;
    transition: opacity 1500ms ease;
    z-index: 10;
    white-space: nowrap;
    animation: breatheWidth 8s ease-in-out infinite;
}

.domain-ghost.visible {
    opacity: 0.06;
}

@keyframes breatheWidth {
    0%, 100% { font-variation-settings: 'wdth' 70; }
    50% { font-variation-settings: 'wdth' 80; }
}

/* Continuity Thread SVG */
.thread-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    pointer-events: none;
    z-index: 1;
}

#threadPath {
    stroke-dasharray: 10000;
    stroke-dashoffset: 10000;
    transition: none;
}

/* Content Flow */
.content-flow {
    position: relative;
    z-index: 2;
    max-width: 100%;
    padding: 0 40px;
}

/* Spacers */
.entry-spacer {
    height: 100vh;
}

.fade-spacer {
    height: 200vh;
}

/* Content Blocks */
.content-block {
    position: relative;
    max-width: 560px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 600ms ease, transform 600ms ease;
}

.content-block.visible {
    opacity: 1;
    transform: translateY(0);
}

.block-right {
    margin-left: 38%;
    margin-bottom: 160px;
}

.block-left {
    margin-left: 8%;
    margin-bottom: 180px;
}

.block-center {
    margin: 0 auto 200px;
    text-align: center;
    max-width: 100%;
}

/* Increasing spacing for later blocks */
.content-block[data-block="3"] { margin-bottom: 200px; }
.content-block[data-block="4"] { margin-bottom: 220px; }
.content-block[data-block="5"] { margin-bottom: 220px; }
.content-block[data-block="6"] { margin-bottom: 240px; }
.content-block[data-block="7"] { margin-bottom: 0; }

/* Block Inner */
.block-inner {
    position: relative;
}

.block-annotation {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--trace-teal);
    opacity: 0.5;
    display: block;
    margin-bottom: 12px;
}

.block-heading {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    letter-spacing: -0.01em;
    text-transform: lowercase;
    color: var(--pale-ash);
    margin-bottom: 16px;
}

.block-inner p {
    margin-bottom: 16px;
    color: var(--pale-ash);
    opacity: 0.85;
}

/* Connector Lines */
.connector {
    position: absolute;
    top: 20px;
    height: 1px;
    width: 0;
    transition: width 200ms ease;
    background: linear-gradient(to right, var(--muted-stone), transparent);
}

.block-right .connector {
    right: 100%;
    width: 0;
    margin-right: 8px;
    background: linear-gradient(to left, var(--muted-stone), transparent);
}

.block-left .connector {
    left: 100%;
    width: 0;
    margin-left: 8px;
}

.content-block.visible .connector {
    width: 60px;
}

.connector-long {
    width: 0 !important;
}

.content-block.visible .connector-long {
    width: 200px !important;
}

/* Final text */
.final-text {
    font-family: 'Literata', serif;
    font-style: italic;
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    color: var(--pale-ash);
    opacity: 0.7;
}

/* Percentage Counter */
.percentage-counter {
    font-family: 'Anybody', sans-serif;
    font-weight: 300;
    font-size: clamp(4rem, 12vw, 10rem);
    font-variation-settings: 'wdth' 150;
    color: var(--pale-ash);
    opacity: 0.15;
    line-height: 1;
}

/* Pulse Rings */
.pulse-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid;
    pointer-events: none;
    opacity: 0;
    animation: pulseExpand 1.5s ease-out forwards;
}

@keyframes pulseExpand {
    0% {
        width: 12px;
        height: 12px;
        margin-left: -6px;
        margin-top: -6px;
        opacity: 0.3;
    }
    100% {
        width: 80px;
        height: 80px;
        margin-left: -40px;
        margin-top: -40px;
        opacity: 0;
    }
}

/* Thread Nodes */
.thread-node {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    opacity: 0.4;
    pointer-events: none;
    z-index: 3;
}

/* Responsive */
@media (max-width: 768px) {
    .content-flow {
        padding: 0 20px;
    }

    .block-right,
    .block-left {
        margin-left: 10%;
        max-width: 85%;
    }

    .domain-ghost {
        display: none;
    }
}