/*
 * Copyright (C) 2024-2026 Speedometer Contributors. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 */

/**
 * 1950s Black & White Blueprint / Planning Design
 * Reference: STYLE_CONFIG in src/graphics.js
 * 
 * Aesthetic Rules:
 * - Pure black drafting background (#000000) with crisp B&W geometry.
 * - Negative blueprint drafting theme (light typography & wireframes on dark void).
 * - Slanted container borders (-2.0deg to +2.0deg) and independent drop shadow angles (Shadow Angle != Box Angle).
 * - Gradual organic watercolor animation reveals for accent coloring during scroll.
 */

*,
*::before,
*::after {
    transition: none !important;
    animation: none !important;
}

:root {
    --bg-color: #000000;
    --paper-light: rgba(0, 0, 0, 0.65);
    --paper-card: rgba(0, 0, 0, 0.85);
    --ink-primary: #ffffff;
    --ink-secondary: #cccccc;
    --ink-muted: #777777;
    --accent-crimson: #d12b3e;
    --accent-ruby: #c72436;
    --accent-dark: #ffffff;
    --accent-light: #cccccc;
    --border-color: #ffffff;
    --shadow-solid: rgba(0, 0, 0, 0.75);
    --text-color: var(--ink-primary);
    --text-muted: var(--ink-muted);
    --card-bg: var(--paper-light);
    --card-active-bg: var(--paper-card);
    --accent-color: var(--accent-crimson);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--ink-primary);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    z-index: 0;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-color: var(--bg-color, #000000);
    background-image: url("public/planning_paper_dot_grid.webp");
    background-repeat: repeat;
    background-size: 256px 256px;
    pointer-events: none;
}

#app {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
}

/* 1950s Construction Paper Header Box with Slanted Geometry & Independent Shadow */
.page-header {
    position: relative;
    z-index: 1;
    padding: 4.5rem 2rem 2.5rem;
    background-color: var(--paper-card);
    border: 4px solid var(--accent-crimson, #d12b3e);
    border-radius: 10px;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    transform: rotate(-0.6deg);
    overflow: visible;
}

.page-header::before {
    content: "";
    position: absolute;
    z-index: -1;
    top: 14px;
    left: 10px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid);
    border-radius: 10px;
    transform: rotate(1.3deg);
}

.page-header:hover {
    transform: rotate(0deg);
}

.page-header:hover::before {
    top: 16px;
    left: 14px;
    transform: rotate(-0.9deg);
}

.page-header h1 {
    font-family: "Impact", "Arial Black", "Futura", "Helvetica Neue", system-ui, -apple-system, sans-serif;
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    color: var(--ink-primary);
}

.subtitle {
    position: relative;
    z-index: 1;
    font-size: 1rem;
    color: var(--ink-primary, #ffffff);
    background-color: var(--paper-card, rgba(0, 0, 0, 0.85));
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
    display: inline-block;
    padding: 0.4rem 1.2rem;
    border: 3px solid var(--border-color, #ffffff);
    border-radius: 6px;
    transform: rotate(1deg);
    overflow: visible;
}

.subtitle::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 6px;
    left: -6px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid);
    border-radius: 6px;
    transform: rotate(-1.7deg);
}

.header-status {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 1.25rem;
}

.status-tag {
    position: relative;
    z-index: 1;
    font-family: "Impact", "Arial Black", "Futura", "Helvetica Neue", system-ui, -apple-system, sans-serif;
    font-size: 1rem;
    font-weight: 900;
    padding: 0.5rem 1.4rem;
    border: 2px solid #ffffff;
    background-color: var(--accent-crimson, #d12b3e);
    color: #ffffff;
    border-radius: 6px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transform: rotate(-1.5deg);
    display: inline-block;
    overflow: visible;
}

.status-tag::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 8px;
    left: 10px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid, rgba(0, 0, 0, 0.75));
    border-radius: 6px;
    transform: rotate(2.3deg);
}

/* Floating Table of Contents (1950s Slanted Index Banner with Independent Shadow) */
.floating-toc {
    position: fixed;
    top: 2.5rem;
    right: 2.5rem;
    z-index: 1000;
    background-color: var(--paper-card);
    border: 3px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    width: 260px;
    transform: rotate(1.2deg);
    overflow: visible;
}

.floating-toc::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 10px;
    left: 6px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid);
    border-radius: 8px;
    transform: rotate(-1.1deg);
}

.floating-toc:hover {
    transform: rotate(0deg) scale(1.02);
}

.floating-toc:hover::after {
    top: 12px;
    left: 10px;
    transform: rotate(-1.6deg);
}

/* Visibility Toggling for Floating TOC (Zero Transitions / Instant Synchronous Toggle) */
.floating-toc.is-hidden {
    display: none !important;
}
.floating-toc.is-visible {
    display: block !important;
}

/* Table of Contents Interactive Toggle & Collapsed State (1950s Blueprint Style, 0 Transitions) */
.toc-toggle-btn {
    background: transparent;
    border: none;
    color: inherit;
    width: 100%;
    cursor: pointer;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.4rem;
}
.toc-toggle-symbol {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 1rem;
    font-weight: 700;
}

.floating-toc.is-collapsed {
    width: 160px;
    padding: 0;
}
.floating-toc.is-collapsed .toc-header {
    margin: 0;
    border-bottom: none;
    padding: 0.65rem 1rem;
    border-radius: 8px;
}
.floating-toc.is-collapsed .toc-list,
.floating-toc.is-collapsed .toc-active-indicator {
    display: none !important;
}

/* Independent Drop Shadow Angle for Collapsed State (Rule 3: Collage/Diorama Rule) */
.floating-toc.is-collapsed::after {
    top: 6px;
    left: 5px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid);
    border-radius: 8px;
    transform: rotate(-1.5deg);
}
.floating-toc.is-collapsed:hover::after {
    top: 8px;
    left: 7px;
    transform: rotate(-1.8deg);
}

.toc-header {
    border-bottom: 3px solid var(--accent-crimson, #d12b3e);
    text-align: center;
    background-color: var(--paper-card, rgba(0, 0, 0, 0.85));
    color: var(--ink-primary, #ffffff);
    margin: -1rem -1rem 0.75rem -1rem;
    padding: 0.65rem 1rem 0.55rem;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
}

.toc-title {
    font-family: "Impact", "Arial Black", "Futura", "Helvetica Neue", system-ui, -apple-system, sans-serif;
    font-size: 1rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.toc-list {
    list-style: none;
    position: relative;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    z-index: 10;
}

.toc-item-wrapper {
    position: relative;
    z-index: 10;
}

.toc-item {
    width: 100%;
    background: transparent;
    border: 2px solid transparent;
    border-radius: 4px;
    color: var(--ink-secondary);
    text-align: left;
    padding: 0.5rem 0.6rem;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 1 !important;
}

.toc-item.is-active {
    background: var(--accent-crimson, #d12b3e) !important;
    color: #ffffff !important;
    border-color: #ffffff !important;
}

.toc-num {
    color: var(--accent-crimson, #d12b3e);
    font-weight: 900;
    letter-spacing: 0.05em;
    opacity: 1 !important;
}

.toc-item.is-active .toc-num {
    color: #ffffff !important;
}

.toc-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-transform: uppercase;
}

.toc-active-indicator {
    display: none !important;
}

.scrolly-container {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

/* Stage Layout & Asymmetric Composition */
.stage-section {
    display: flex;
    position: relative;
    gap: 4.5rem;
    align-items: flex-start;
    justify-content: space-between;
    min-height: min(650px, 80vh);
    padding-top: 3rem;
    padding-bottom: 3rem;
}

.stage-section.layout-text-left {
    flex-direction: row;
}

.stage-section.layout-text-right {
    flex-direction: row-reverse;
}

.stage-graphic-column {
    flex: 1 1 55%;
    position: sticky;
    top: 0;
    max-height: 100vh;
    height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    z-index: 10;
}

.stage-narrative-column {
    flex: 1 1 45%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    padding-top: 0;
    padding-bottom: 0;
    z-index: 5;
}

/* Irregular Slanted Tilt Angles & Independent Drop Shadow Offsets/Angles per Stage */
#stage-section-0 {
    --step-tilt: -1.4deg;
    --step-shadow-tilt: 0.9deg;
    --step-shadow-x: 12px;
    --step-shadow-y: 8px;
    --graphic-tilt: 1.2deg;
    --graphic-shadow-tilt: -1.6deg;
    --graphic-shadow-x: 16px;
    --graphic-shadow-y: 10px;
}
#stage-section-1 {
    --step-tilt: 1.6deg;
    --step-shadow-tilt: -1.1deg;
    --step-shadow-x: -10px;
    --step-shadow-y: 14px;
    --graphic-tilt: -1.4deg;
    --graphic-shadow-tilt: 1.3deg;
    --graphic-shadow-x: -12px;
    --graphic-shadow-y: 16px;
}
#stage-section-2 {
    --step-tilt: -1.1deg;
    --step-shadow-tilt: 1.5deg;
    --step-shadow-x: 14px;
    --step-shadow-y: -6px;
    --graphic-tilt: 1.5deg;
    --graphic-shadow-tilt: -0.9deg;
    --graphic-shadow-x: 10px;
    --graphic-shadow-y: 18px;
}
#stage-section-3 {
    --step-tilt: 1.3deg;
    --step-shadow-tilt: -1.4deg;
    --step-shadow-x: 8px;
    --step-shadow-y: 16px;
    --graphic-tilt: -1.1deg;
    --graphic-shadow-tilt: 1.7deg;
    --graphic-shadow-x: -14px;
    --graphic-shadow-y: 12px;
}
#stage-section-4 {
    --step-tilt: -1.5deg;
    --step-shadow-tilt: 1.2deg;
    --step-shadow-x: -12px;
    --step-shadow-y: 10px;
    --graphic-tilt: 1.3deg;
    --graphic-shadow-tilt: -1.8deg;
    --graphic-shadow-x: 18px;
    --graphic-shadow-y: 8px;
}
#stage-section-5 {
    --step-tilt: 1.2deg;
    --step-shadow-tilt: -1.5deg;
    --step-shadow-x: 16px;
    --step-shadow-y: 14px;
    --graphic-tilt: -1.5deg;
    --graphic-shadow-tilt: 1.1deg;
    --graphic-shadow-x: -10px;
    --graphic-shadow-y: -8px;
}
#stage-section-6 {
    --step-tilt: -1.3deg;
    --step-shadow-tilt: 1.6deg;
    --step-shadow-x: 10px;
    --step-shadow-y: 18px;
    --graphic-tilt: 1.4deg;
    --graphic-shadow-tilt: -1.2deg;
    --graphic-shadow-x: 14px;
    --graphic-shadow-y: 14px;
}
#stage-section-7 {
    --step-tilt: 1.5deg;
    --step-shadow-tilt: -1.1deg;
    --step-shadow-x: -14px;
    --step-shadow-y: 12px;
    --graphic-tilt: -1.2deg;
    --graphic-shadow-tilt: 1.5deg;
    --graphic-shadow-x: -16px;
    --graphic-shadow-y: 16px;
}

/* Graphic Sticky Wrapper (1950s Architectural Drawing Frame with Independent Shadow) */
.graphic-sticky-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    aspect-ratio: 4 / 3;
    border: 4px solid var(--border-color);
    border-radius: 10px;
    background-color: transparent;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotateZ(var(--graphic-tilt, 0deg));
}

.graphic-sticky-wrapper::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: var(--graphic-shadow-y, 14px);
    left: var(--graphic-shadow-x, 14px);
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid);
    border-radius: 10px;
    transform: rotateZ(var(--graphic-shadow-tilt, -1.5deg));
}

.graphic-canvas,
.graphic-svg,
#graphic-canvas,
#graphic-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    clip-path: inset(0px round 5px);
}

.graphic-canvas,
#graphic-canvas {
    z-index: 1;
}

.graphic-svg,
#graphic-svg {
    z-index: 2;
    pointer-events: none;
}

/* Clean Blueprint Dot Grid / Watercolor Wash Overlay */
.graphic-texture-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at center, rgba(255, 255, 255, 0.12), transparent 70%);
    background-size: 100% 100%;
    background-position: center;
    mix-blend-mode: screen;
    opacity: 0.35;
    border-radius: 5px;
    z-index: 2;
    pointer-events: none;
    clip-path: inset(0px round 5px);
}

/* 1950s Graphic Callout Badge Caption with Independent Shadow */
.caption {
    position: absolute;
    z-index: 5;
    bottom: 1.25rem;
    left: 1.25rem;
    right: 1.25rem;
    background-color: var(--paper-card, rgba(0, 0, 0, 0.85));
    color: var(--ink-primary, #ffffff);
    border: 3px solid var(--accent-crimson, #d12b3e);
    border-radius: 6px;
    padding: 0.65rem 1.25rem;
    font-family: "Impact", "Arial Black", "Futura", "Helvetica Neue", system-ui, -apple-system, sans-serif;
    font-size: 0.95rem;
    font-weight: 900;
    text-align: center;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transform: rotate(-0.8deg);
    overflow: visible;
}

.caption::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 5px;
    left: 6px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid);
    border-radius: 6px;
    transform: rotate(1.6deg);
}

.caption-title {
    color: var(--ink-secondary, #cccccc);
    font-weight: 700;
}

.caption-text {
    color: var(--ink-primary, #ffffff);
    font-weight: 900;
}

/* Narrative Cards (.step) on Construction Paper with Independent Shadow - Upright & Transparent */
article,
.step {
    position: relative;
    z-index: 1;
    background-color: transparent !important;
    border: 3px solid var(--ink-secondary, #cccccc);
    border-radius: 8px;
    padding: 1.35rem 1.75rem;
    opacity: 1 !important;
    transform: none !important;
    overflow: visible;
}

article.is-active,
.step.is-active {
    background-color: transparent !important;
    transform: none !important;
}

.step::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: var(--step-shadow-y, 6px);
    left: var(--step-shadow-x, 6px);
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid, rgba(0, 0, 0, 0.75));
    border-radius: 8px;
    opacity: 1;
    transform: rotateZ(var(--step-shadow-tilt, 1deg));
}

.step-meta {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 900;
    color: var(--accent-crimson, #d12b3e);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    display: block;
    margin-top: 0.2rem;
    margin-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-ruby, #c72436);
    padding-bottom: 0.4rem;
    opacity: 1 !important;
}

.step-title {
    font-family: "Impact", "Arial Black", "Futura", "Helvetica Neue", system-ui, -apple-system, sans-serif;
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    color: var(--ink-primary);
    line-height: 1.1;
}

/* Standard Vertical Paragraph Text (0 Layout Animations, 0 Transforms, No Separate Boxes) */
.step-paragraph-item {
    position: relative;
    z-index: 1;
    margin-bottom: 1.2rem;
    opacity: 1 !important;
    cursor: pointer;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 1rem;
    color: var(--ink-primary);
    line-height: 1.65;
    font-weight: 400;
    transform: rotate(0deg);
}

.step-paragraph-item:last-child {
    margin-bottom: 0;
}

/* Inline Transparent Illustrations Between Paragraphs (Strict Defense-in-Depth Guardrails) */
.step-inline-illustration {
    opacity: 1 !important;
    transition: none !important;
    animation: none !important;
    background: transparent !important;
    border: 2px solid var(--ink-secondary);
    border-radius: 6px;
    margin: 16px 0;
    padding: 12px;
    text-align: center;
}

.step-inline-illustration-img {
    opacity: 1 !important;
    transition: none !important;
    animation: none !important;
    background: transparent !important;
    max-width: 100%;
    height: auto;
    display: inline-block;
}

/* Step Specs (1950s Slanted Print Data Box with Independent Shadow) */
.step-specs {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    background: var(--bg-color);
    padding: 0.75rem 1rem;
    border: 3px solid var(--ink-primary);
    border-radius: 6px;
    margin-top: 0.6rem;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    transform: rotate(0.5deg);
    overflow: visible;
}

.step-specs::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 6px;
    left: -6px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid);
    border-radius: 6px;
    transform: rotate(-1.3deg);
}

.spec-item {
    display: flex;
    flex-direction: column;
    border-left: 3px solid var(--accent-crimson, #d12b3e);
    padding-left: 0.65rem;
}

.spec-label {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--ink-secondary, #cccccc);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 1 !important;
}

.spec-value {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 900;
    color: var(--ink-primary);
}

.page-footer {
    position: relative;
    z-index: 1;
    padding: 4.5rem 2rem 3.5rem;
    background-color: var(--paper-card);
    border: 4px solid var(--border-color);
    border-radius: 10px;
    margin-top: 1rem;
    margin-bottom: 4rem;
    text-align: center;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 900;
    color: var(--ink-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transform: rotate(0.5deg);
    overflow: visible;
}

.page-footer::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 12px;
    left: 10px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid);
    border-radius: 10px;
    transform: rotate(-0.9deg);
}

@media (max-width: 1100px) {
    .floating-toc {
        top: auto;
        bottom: 1.5rem;
        right: 1.5rem;
        width: 230px;
        padding: 0.75rem;
        transform: rotate(0deg);
    }
    .floating-toc.is-collapsed {
        width: 145px;
        padding: 0;
    }
    .toc-title {
        font-size: 1rem;
    }
    .toc-item {
        font-size: 0.85rem;
        padding: 0.35rem 0.45rem;
    }
    .step-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 900px) {
    .scrolly-container {
        gap: 2.5rem;
    }
    .stage-section,
    .stage-section.layout-text-left,
    .stage-section.layout-text-right {
        flex-direction: column;
        gap: 2.5rem;
        min-height: auto;
        padding-top: 1.5rem;
        padding-bottom: 2rem;
    }
    .stage-graphic-column {
        position: relative;
        top: 0;
        width: 100%;
        height: auto;
    }
    .stage-narrative-column {
        width: 100%;
        padding-top: 0;
        padding-bottom: 0;
    }
    .step-specs {
        grid-template-columns: 1fr;
    }
}

/* Bottom Timeline Navigation Overlay (Canon Autozoom Style, Zero Transitions) */
.bottom-timeline-overlay,
#bottom-timeline-overlay {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) rotate(-0.5deg);
    z-index: 1000;
    background-color: var(--paper-card, rgba(0, 0, 0, 0.85));
    border: 3px solid var(--border-color, #ffffff);
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    width: max-content;
    max-width: 90vw;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 1 !important;
    overflow: visible;
    transition: none !important;
    animation: none !important;
}
.bottom-timeline-overlay::after,
#bottom-timeline-overlay::after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 6px;
    left: 8px;
    width: 100%;
    height: 100%;
    background-color: var(--shadow-solid, rgba(0, 0, 0, 0.75));
    border-radius: 8px;
    transform: rotate(1.1deg);
    transition: none !important;
    animation: none !important;
}
.bottom-timeline-overlay.is-hidden,
#bottom-timeline-overlay.is-hidden {
    display: none !important;
}
.bottom-timeline-overlay.is-visible,
#bottom-timeline-overlay.is-visible {
    display: flex !important;
}
.timeline-track {
    position: absolute;
    top: 50%;
    left: 1.5rem;
    right: 1.5rem;
    height: 2px;
    background-color: var(--ink-secondary, #cccccc);
    z-index: 1;
}
.timeline-points {
    list-style: none;
    display: flex;
    gap: 1.25rem;
    margin: 0;
    padding: 0;
    position: relative;
    z-index: 2;
}
.timeline-point {
    background-color: var(--paper-light, rgba(0, 0, 0, 0.65));
    border: 2px solid var(--border-color, #ffffff);
    border-radius: 6px;
    color: var(--ink-secondary, #cccccc);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.35rem 0.65rem;
    cursor: pointer;
    opacity: 1 !important;
    transition: none !important;
    animation: none !important;
    transform: rotate(0deg);
    z-index: 2;
}
.timeline-point.is-active {
    background: var(--accent-crimson, #d12b3e) !important;
    color: #ffffff !important;
    border-color: #ffffff !important;
}