/*
 * deck.css — единый стиль «хром»-слайдов дека Книжного клуба.
 * Извлечён из _template/index.html: правка общего стиля = правка этого файла.
 * Маркеров подстановки шаблона здесь быть не должно — только чистый CSS.
 */

/* ===== Базовый каркас дека (viewport, слайды, типографика, тултипы) ===== */

:root {
    --bg: #000000;
    --bg-card: #0a0a0a;
    --bg-hover: #171717;
    --border: #333333;
    --border-hover: #444444;
    --text-main: #ededed;
    --text-muted: #a1a1aa;
    --accent: #ffffff;
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

html, body {
    width: 100%; height: 100%; margin: 0; overflow: hidden;
    background: var(--bg); color: var(--text-main); font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
}

.deck-viewport { position: absolute; inset: 0; overflow: hidden; }
.deck-stage {
    position: absolute; left: 0; top: 0; width: 1920px; height: 1080px;
    transform-origin: 0 0; background: var(--bg);
}
.slide {
    position: absolute; inset: 0; display: block; visibility: hidden; opacity: 0;
    pointer-events: none; transition: opacity 0.4s ease;
}
.slide.active { visibility: visible; opacity: 1; pointer-events: auto; z-index: 1; }

h1 { font-size: 88px; font-weight: 700; letter-spacing: -0.04em; margin-bottom: 24px; line-height: 1.1; }
h2 { font-size: 64px; font-weight: 600; letter-spacing: -0.03em; margin-bottom: 32px; }
h3 { font-size: 32px; font-weight: 500; letter-spacing: -0.02em; margin-bottom: 16px; color: var(--accent); }
p { font-size: 26px; line-height: 1.6; color: var(--text-muted); margin-bottom: 24px; }

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #71717a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.layout-center {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    height: 100%; text-align: center; padding: 0 100px;
}
.layout-split {
    display: grid; grid-template-columns: 1fr 1fr; gap: 80px;
    height: 100%; padding: 0 100px; align-items: center;
}
.layout-interactive {
    display: grid; grid-template-columns: 55% 45%; gap: 60px;
    height: 100%; padding: 0 80px; align-items: center; align-content: center;
}

.badge {
    display: inline-block; padding: 10px 20px; border-radius: 9999px;
    border: 1px solid var(--border); font-size: 18px; font-weight: 500;
    margin-bottom: 40px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em;
}

.card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 16px; padding: 50px;
}

/* Code Viewer */
.code-panel {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px;
    overflow: hidden; display: flex; flex-direction: column; height: 100%; max-height: 800px;
}
.code-header {
    padding: 20px 30px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 12px;
    font-family: var(--font-mono); font-size: 14px; color: var(--text-muted);
}
.mac-dots { display: flex; gap: 8px; margin-right: 16px; }
.mac-dot { width: 12px; height: 12px; border-radius: 50%; background: #333; }
.code-content {
    padding: 20px; overflow-y: auto; flex-grow: 1; font-family: var(--font-mono);
    font-size: 18px; line-height: 1.6; color: #a1a1aa;
}

/* Custom scrollbar in Vercel style */
.code-content::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
.code-content::-webkit-scrollbar-track {
    background: transparent;
}
.code-content::-webkit-scrollbar-thumb {
    background: #222;
    border-radius: 4px;
}
.code-content::-webkit-scrollbar-thumb:hover {
    background: #444;
}

.code-line {
    padding: 8px 16px; margin: 0 -16px; border-radius: 8px; cursor: pointer;
    transition: all 0.2s; border-left: 3px solid transparent;
}
.code-line:hover { background: #171717; color: #fff; }
.code-line.active { background: #27272a; color: #fff; border-left-color: #fff; }

.info-panel {
    background: transparent; border: none;
    padding: 60px; height: 100%; display: flex; flex-direction: column; justify-content: center;
}
.info-panel h3 { font-size: 36px; font-weight: 600; margin-bottom: 24px; }
.info-panel p { font-size: 22px; line-height: 1.8; color: var(--text-muted); }

.interactive-hint {
    position: absolute; bottom: 40px; left: 80px; font-size: 16px; color: var(--text-muted); opacity: 0.5;
    display: flex; align-items: center; gap: 8px; font-family: var(--font-sans);
}
.interactive-hint::before {
    content: 'ℹ'; font-size: 18px;
}

/* Tooltip style */
.tooltip-trigger {
    position: relative;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px dashed #ffffff;
    transition: border-color 0.2s;
    display: inline-block;
}
.tooltip-trigger:hover {
    border-bottom-color: #a1a1aa;
}
.tooltip-content {
    position: absolute;
    bottom: 130%;
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    background: #0a0a0a;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 18px 22px;
    width: 480px;
    font-size: 15px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-muted);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
    z-index: 1000;
    text-align: left;
    visibility: hidden;
}
/* Keep tooltip open when hovering trigger or the tooltip itself */
.tooltip-trigger:hover .tooltip-content,
.tooltip-content:hover {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
/* Bridge to allow smooth hover transition */
.tooltip-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 35px;
    background: transparent;
}
/* Style for links inside the tooltip */
.tooltip-content a {
    color: #ffffff;
    text-decoration: underline;
    font-weight: 500;
    transition: color 0.2s ease;
}
.tooltip-content a:hover {
    color: #a1a1aa;
}

/* Syntax */
.s-kw { color: #f87171; } /* keyword */
.s-str { color: #34d399; } /* string */
.s-com { color: #52525b; } /* comment */
.s-var { color: #60a5fa; } /* variable */
.s-key { color: #e879f9; } /* yaml key */

.repo-link {
    position: fixed; top: 40px; right: 40px; padding: 14px 28px;
    background: transparent; border: 1px solid var(--border); border-radius: 8px;
    color: var(--text-muted); text-decoration: none; font-size: 16px;
    transition: all 0.2s; z-index: 100; font-weight: 500; font-family: var(--font-sans);
}
.repo-link:hover { border-color: #fff; color: #fff; }

.progress {
    position: fixed; top: 0; left: 0; height: 2px; background: #fff; z-index: 1000;
    transition: width 0.3s ease;
}

/* Flat Icon Styling */
.flat-icon {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    display: inline-block;
}

/* Slide 7 Clickable Cards and Tooltips */
.build-service-card {
    cursor: pointer;
    transition: border-color 0.2s, transform 0.2s, background-color 0.2s;
}
.build-service-card:hover {
    border-color: #555;
    background-color: #111;
}
.build-service-card.active-card {
    border-color: #fff;
    background-color: #171717;
}

.build-controller {
    cursor: pointer;
    transition: border-color 0.2s, transform 0.2s, background-color 0.2s;
}
.build-controller:hover {
    border-color: #fff;
    background-color: #0c0c0c;
}
.build-controller.active-card {
    border-color: #fff;
    background-color: #111;
}

.build-tooltip {
    position: absolute;
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 16px;
    width: 380px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px) translateX(-50%);
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 100;
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    text-align: left;
}
.build-tooltip.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) translateX(-50%);
}

.build-tooltip::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: #0a0a0a;
    border: 1px solid #333;
    z-index: 1;
}

.build-tooltip-above {
    bottom: 515px;
}
.build-tooltip-above::after {
    bottom: -6px;
    left: calc(50% - 5px);
    transform: rotate(45deg);
    border-top: none;
    border-left: none;
}

.build-tooltip-below {
    top: 505px;
}
.build-tooltip-below::after {
    top: -6px;
    left: calc(50% - 5px);
    transform: rotate(45deg);
    border-bottom: none;
    border-right: none;
}

.tooltip-tabs {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid #222;
    padding-bottom: 8px;
    margin-bottom: 12px;
}
.tooltip-tab {
    background: transparent;
    border: none;
    color: #666;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    padding: 2px 8px;
    border-radius: 4px;
    transition: all 0.2s;
}
.tooltip-tab:hover {
    color: #fff;
}
.tooltip-tab.active {
    color: #fff;
    background: #222;
}

.tooltip-header {
    font-family: var(--font-mono);
    font-size: 13px;
    color: #fff;
    border-bottom: 1px solid #222;
    padding-bottom: 8px;
    margin-bottom: 12px;
    font-weight: 500;
}

.tooltip-tab-content {
    display: none;
}
.tooltip-tab-content.active {
    display: block;
}
.tooltip-tab-content pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.5;
    color: #a1a1aa;
    overflow-x: auto;
}

/* Left Aspect Diagram for Slides 14 & 15 */
.arch-container-left {
    display: flex;
    flex-direction: column;
    width: 280px;
    gap: 12px;
    margin-left: 0px;
}
.arch-aspect-stack-left {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.arch-aspect-card-left {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    color: #fff;
    text-align: center;
    opacity: 0.25;
    transition: all 0.3s ease;
}
.arch-aspect-card-left.card-app-left {
    padding: 10px 12px;
    font-size: 15px;
    font-weight: 600;
}
.arch-aspect-card-left.active-highlight {
    opacity: 1;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.6);
    color: #fff;
    font-weight: 600;
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
    z-index: 10;
}
.acc-link {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.35);
    transition: all 0.2s ease;
    position: relative;
}
.acc-link:hover {
    color: #fff;
    border-bottom-color: #fff;
}
.acc-link[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    background: #1a1a2e;
    color: #e4e4e7;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.5;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    white-space: normal;
    width: 280px;
    z-index: 1000;
    pointer-events: none;
    animation: tooltipFadeIn 0.2s ease;
}
.acc-link[data-tooltip]:hover::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: rgba(255, 255, 255, 0.15);
    z-index: 1001;
    pointer-events: none;
    animation: tooltipFadeIn 0.2s ease;
}
@keyframes tooltipFadeIn {
    from { opacity: 0; transform: translateX(-50%) translateY(4px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ===== Слайд «О книге и авторах» ===== */

.about-book-slide {
    display: flex;
    flex-direction: column;
    gap: 36px;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 40px 100px;
    box-sizing: border-box;
}
.book-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 1200px;
}
.book-row {
    display: flex;
    gap: 40px;
    align-items: center;
    padding: 12px 0;
}
.book-cover-container {
    flex-shrink: 0;
}
.book-cover {
    width: 200px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.6);
    transition: transform 0.3s ease;
}
.book-cover:hover {
    transform: scale(1.05);
}
.book-text-info {
    display: flex;
    flex-direction: column;
    text-align: left;
}
.book-link {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
    text-decoration: none;
    margin-bottom: 6px;
    transition: color 0.2s;
    letter-spacing: -0.02em;
}
.book-link:hover {
    color: var(--text-muted);
}
.book-subtitle {
    font-size: 16px;
    line-height: 1.4;
    color: var(--text-muted);
    margin: 0 0 12px 0;
    font-weight: 500;
}
.book-desc-ru {
    font-size: 15px;
    line-height: 1.6;
    color: #888;
    margin: 0;
}
.people-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    width: 100%;
    max-width: 1200px;
}
.authors-column {
    display: flex;
    flex-direction: column;
}
.authors-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.speaker-column {
    display: flex;
    flex-direction: column;
}
.author-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    transition: border-color 0.2s, background-color 0.2s;
    text-decoration: none;
    color: inherit;
    height: 96px;
    box-sizing: border-box;
}
.author-card:hover {
    border-color: #555;
    background: #0f0f0f;
}
.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid #333;
    object-fit: cover;
}
.author-info {
    display: flex;
    flex-direction: column;
    text-align: left;
}
.author-name {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 4px;
}
.author-link-text {
    font-size: 13px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ===== Слайды-таймлайны («Программа вечера», «Что далее») ===== */

.timeline-next-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 0 100px;
}
.timeline-next {
    display: flex;
    flex-direction: column;
    gap: 36px;
    position: relative;
    width: 100%;
    max-width: 850px;
    margin-top: 20px;
    padding-left: 60px;
    box-sizing: border-box;
}
.timeline-next::before {
    content: '';
    position: absolute;
    left: 21px;
    top: 20px;
    bottom: 20px;
    width: 2px;
    background: #222;
}
.timeline-next-item {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    position: relative;
}
.timeline-next-marker {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #000;
    border: 2px solid #333;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: absolute;
    left: -46px;
    top: 15px;
    z-index: 2;
    box-sizing: border-box;
}
.timeline-next-marker.completed {
    width: 20px;
    height: 20px;
    left: -49px;
    top: 12px;
    border-color: #555;
    background: #000;
    color: #555;
}
.timeline-next-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: left;
}
.timeline-next-title {
    font-size: 28px;
    font-weight: 500;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 16px;
}
.timeline-next-item.completed .timeline-next-title {
    color: #555;
    font-size: 32px;
    font-weight: 500;
}
.timeline-next-item.next-large .timeline-next-title {
    font-size: 44px;
    font-weight: 600;
    color: #fff;
}
.timeline-next-speaker {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
}
.timeline-next-speaker-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid #444;
    object-fit: cover;
    background: #111;
}
.timeline-next-speaker-name {
    font-size: 18px;
    font-weight: 500;
    color: #a1a1aa;
}
.timeline-badge-completed {
    font-size: 13px;
    font-weight: 600;
    color: #555;
    border: 1px solid #333;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
    display: inline-block;
}

/* ===== Интерактивные блоки контентных слайдов (слайдер, табы, карточки) ===== */
/* Before-After Slider Styles */
.before-after-slider {
    position: relative;
    width: 1400px;
    height: 520px;
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    margin: 20px auto;
    background: #000;
}
.slider-img-container {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    overflow: hidden;
}
.slider-img {
    width: 1400px;
    height: 100%;
    background-size: cover;
    background-position: center;
}
.slider-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background: #fff;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.slider-handle-button {
    width: 48px;
    height: 48px;
    background: #fff;
    border: 2px solid #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    font-size: 20px;
    font-weight: bold;
    box-shadow: 0 0 20px rgba(0,0,0,0.8);
}
.slider-range-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: ew-resize;
    z-index: 4;
    margin: 0;
}
.slider-caption-container {
    display: flex;
    width: 1400px;
    gap: 40px;
    margin-top: 16px;
}
.slider-caption-col {
    flex: 1;
    text-align: left;
}
.slider-caption-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}
.slider-caption-text {
    font-size: 15px;
    line-height: 1.5;
    color: var(--text-muted);
}

/* Slide 5 CSS - Scale Tabs */
.scale-tabs-container {
    display: flex;
    flex-direction: column;
    width: 1400px;
    height: auto;
    margin: 20px auto 0 auto;
    text-align: left;
}
.scale-tabs-nav-horizontal {
    display: flex;
    width: 1400px;
    margin: 0 auto 20px auto;
    position: relative;
    height: 56px;
}
.scale-tab-btn-horiz {
    flex: 1;
    background: #0d0d0d;
    border: 1px solid var(--border);
    height: 100%;
    color: var(--text-muted);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    margin-right: -15px;
    outline: none;
    z-index: 1;
}
.scale-tab-btn-horiz.tab-first {
    clip-path: polygon(0% 0%, calc(100% - 15px) 0%, 100% 50%, calc(100% - 15px) 100%, 0% 100%);
    padding-right: 15px;
    z-index: 3;
}
.scale-tab-btn-horiz.tab-mid {
    clip-path: polygon(0% 0%, calc(100% - 15px) 0%, 100% 50%, calc(100% - 15px) 100%, 0% 100%, 15px 50%);
    padding-left: 15px;
    padding-right: 15px;
    z-index: 2;
}
.scale-tab-btn-horiz.tab-last {
    clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 0% 100%, 15px 50%);
    padding-left: 15px;
    margin-right: 0;
    z-index: 1;
}
.scale-tab-btn-horiz:hover {
    background: #141414;
    color: #fff;
}
.scale-tab-btn-horiz.active {
    background: rgba(0, 223, 216, 0.12);
    color: #00dfd8;
    z-index: 10;
}
.scale-tabs-content {
    width: 1400px;
    height: 700px;
    background: #0d0d0d;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    position: relative;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    overflow: hidden;
    margin: 0 auto;
}
.tab-pane {
    display: none;
    flex-grow: 1;
    flex-direction: column;
    height: calc(100% - 60px);
}
.tab-pane.active {
    display: flex;
}
.pane-step {
    display: none;
    flex-grow: 1;
    flex-direction: column;
    animation: fadeIn 0.4s ease forwards;
}
.pane-step.active {
    display: flex;
}
.pane-step-title {
    font-size: 28px;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 16px;
    color: #fff;
}
.pane-grid-2 {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    flex-grow: 1;
    align-items: start;
}
.pane-step-desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-muted);
    margin: 0;
}
.pane-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.01);
    border: 1px dashed #222;
    border-radius: 16px;
    padding: 24px;
    min-height: 460px;
    flex-grow: 1;
    height: 100%;
    box-sizing: border-box;
    flex-direction: column;
}
.vis-container-box {
    background: #111;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    min-width: 140px;
}
.vis-container-box.min-box {
    padding: 12px 16px;
    font-size: 13px;
    min-width: 100px;
}
.vis-box-icon {
    font-size: 24px;
}
.vis-box-port {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}
.vis-arrow-right {
    font-size: 20px;
    color: #444;
}
.pain-points-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.pain-point-item {
    display: flex;
    gap: 12px;
    font-size: 15px;
    line-height: 1.5;
    color: var(--text-muted);
}
.pain-icon {
    font-size: 16px;
    margin-top: 2px;
}
.pain-solution-card {
    background: rgba(0,223,216,0.02);
    border: 1px dashed rgba(0,223,216,0.3);
    border-radius: 16px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
    box-sizing: border-box;
    text-align: left;
}
.tab-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    border-top: 1px solid #1a1a1a;
    padding-top: 20px;
    height: 40px;
}
.pag-btn {
    background: transparent;
    border: 1px solid #222;
    border-radius: 8px;
    color: #fff;
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}
.pag-btn:hover:not(:disabled) {
    border-color: #555;
    background: #111;
}
.pag-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}
.pag-dots {
    display: flex;
    gap: 8px;
}
.pag-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #222;
    cursor: pointer;
    transition: all 0.2s;
}
.pag-dot.active {
    background: #00dfd8;
    box-shadow: 0 0 8px #00dfd8;
}
/* Slide 6 CSS */
.chain-container {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: center;
    margin-top: 40px;
    width: 100%;
    max-width: 1300px;
    position: relative;
}
.chain-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    opacity: 0;
    transform: translateY(20px);
    position: relative;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}
.chain-block:hover {
    border-color: #00dfd8;
    background: rgba(10, 10, 10, 0.6);
    transform: scale(1.03) !important;
    box-shadow: 0 10px 30px rgba(0, 223, 216, 0.15);
    z-index: 10;
}
.chain-hover-commands {
    position: absolute;
    top: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    width: max-content;
    min-width: 100%;
    background: none;
    border: none;
    box-shadow: none;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 100;
}
.chain-block:hover .chain-hover-commands {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.command-line {
    font-family: var(--font-mono);
    font-size: 13px;
    color: #fff;
    margin: 6px 0;
    white-space: nowrap;
    line-height: 1.4;
}
.command-line:first-child {
    margin-top: 0;
}
.command-line:last-child {
    margin-bottom: 0;
}
.chain-arrow {
    opacity: 0;
    color: #444;
    display: flex;
    align-items: center;
    justify-content: center;
}
.gitops-badge {
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    background: linear-gradient(135deg, #0070f3 0%, #00dfd8 100%);
    color: #fff;
    padding: 8px 24px;
    border-radius: 9999px;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 0 0 30px rgba(0, 223, 216, 0.3);
}
.slide.active .chain-block-1 { animation: slideInUp 0.5s ease forwards 0.2s; }
.slide.active .chain-arrow-1 { animation: fadeIn 0.5s ease forwards 0.4s; }
.slide.active .chain-block-2 { animation: slideInUp 0.5s ease forwards 0.5s; }
.slide.active .chain-arrow-2 { animation: fadeIn 0.5s ease forwards 0.7s; }
.slide.active .chain-block-3 { animation: slideInUp 0.5s ease forwards 0.8s; }
.slide.active .chain-arrow-3 { animation: fadeIn 0.5s ease forwards 1.0s; }
.slide.active .chain-block-4 { animation: slideInUp 0.5s ease forwards 1.1s; }
.slide.active .gitops-badge { animation: badgeGlow 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards 1.4s; }

@keyframes badgeGlow {
    0% { opacity: 0; transform: translate(-50%, 10px); }
    100% { opacity: 1; transform: translate(-50%, 0); }
}

/* Slide 7 CSS */
.pillars-container {
    display: flex;
    gap: 24px;
    align-items: stretch;
    justify-content: center;
    margin-top: 30px;
    width: 100%;
    max-width: 1400px;
    min-height: 340px;
}
.pillar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    opacity: 0;
    transform: translateY(30px);
    cursor: pointer;
    transition: border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                background 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                opacity 0.4s ease,
                flex 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}
.pillar-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    margin: 0;
    transition: max-height 0.4s ease, opacity 0.4s ease, transform 0.4s ease, margin 0.4s ease;
    max-height: 80px;
    opacity: 1;
}
.pillar-card .pillar-desc {
    max-height: 0;
    opacity: 0;
    margin: 0;
    font-size: 17px;
    line-height: 1.6;
    color: #a1a1aa;
    text-align: center;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                opacity 0.4s ease, 
                margin-top 0.4s ease;
}
.pillar-card:not(.collapsed):hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.04);
    transform: scale(1.02) translateY(-4px) !important;
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
    opacity: 1 !important;
}
.pillar-card.dashed-card {
    border-style: dashed;
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.01);
}
.pillar-card.dashed-card:not(.collapsed):hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}
.pillar-card.expanded {
    flex: 2.2;
    background: rgba(15, 15, 15, 0.6);
    border-color: #fff;
    opacity: 1 !important;
    box-shadow: 0 10px 40px rgba(255, 255, 255, 0.08);
    transform: none !important;
    cursor: default;
}
.pillar-card.expanded .pillar-desc {
    max-height: 220px;
    opacity: 1;
    margin-top: 16px;
}
.pillar-card.expanded.dashed-card {
    background: rgba(255, 255, 255, 0.03);
    border-color: #fff;
}
.pillar-card.collapsed {
    flex: 0.35;
    opacity: 0.25 !important;
    transform: scale(0.97) !important;
    pointer-events: auto;
}
.pillar-card.collapsed h3 {
    opacity: 0;
    max-height: 0;
    margin: 0;
    overflow: hidden;
    transform: scale(0.8);
}
.slide.active .pillar-1 { animation: slideInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.2s; }
.slide.active .pillar-2 { animation: slideInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.4s; }
.slide.active .pillar-3 { animation: slideInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.6s; }
.slide.active .pillar-4 { animation: slideInUpDashed 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.8s; }

@keyframes slideInUpDashed {
    0% { opacity: 0; transform: translateY(30px); }
    100% { opacity: 0.55; transform: translateY(0); }
}

/* NEW badge styles */
.new-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: linear-gradient(135deg, #0070f3 0%, #00dfd8 100%);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 0 10px rgba(0, 223, 216, 0.4);
    animation: pulseNewBadge 2s infinite ease-in-out;
    transition: opacity 0.3s ease;
}
.pillar-card.collapsed .new-badge {
    opacity: 0;
    pointer-events: none;
}
@keyframes pulseNewBadge {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 10px rgba(0, 223, 216, 0.4);
    }
    50% {
        transform: scale(1.08);
        box-shadow: 0 0 18px rgba(0, 223, 216, 0.8);
    }
}

/* Slide 8 CSS (Главные выводы) */
.peel-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    max-width: 900px;
    margin-bottom: 24px;
    margin-top: 40px; /* added spacing since slide header is removed */
}
.peel-card-wrapper {
    position: relative;
    height: 64px;
    background: rgba(255, 255, 255, 0.01);
    border: 1px dashed rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    perspective: 800px;
    box-shadow: inset 0 2px 6px rgba(0,0,0,0.6);
}
.peel-card-content-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-left: 24px;
    z-index: 1;
}
.peel-card-text {
    color: #fff;
    font-size: 16px;
    font-weight: 500;
}
.peel-cover {
    position: absolute;
    top: -1px;
    left: -1px;
    width: calc(100% + 2px);
    height: calc(100% + 2px);
    background: linear-gradient(135deg, transparent 23px, #000000 23px);
    border: 1px dashed #ffffff;
    box-sizing: border-box;
    border-radius: 12px;
    z-index: 10;
    cursor: default;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    transform-origin: 100% 100%;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}
.peel-cover.peeled {
    transform: rotate3d(1, -1, 0, 115deg) translate(80px, -80px) scale(0.2) !important;
    opacity: 0 !important;
    pointer-events: none !important;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease !important;
}
.peel-fold {
    position: absolute;
    top: -1px;
    left: -1px;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, transparent 50%, #2f2f36 50%);
    border-bottom: 1.5px solid rgba(255, 255, 255, 0.4);
    border-right: 1.5px solid rgba(255, 255, 255, 0.4);
    box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.6);
    border-bottom-right-radius: 6px;
    pointer-events: auto;
    cursor: grab;
    z-index: 15;
    transition: transform 0.2s ease;
}
.peel-fold:hover {
    transform: scale(1.08);
    background: linear-gradient(135deg, transparent 50%, #3f3f46 50%);
    border-color: rgba(255, 255, 255, 0.6);
}
.peel-fold:active {
    cursor: grabbing;
}
.main-takeaway-card {
    width: 100%;
    max-width: 900px;
    padding: 32px 24px;
    background: #09090b;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    margin-top: 20px;
    position: relative;
    opacity: 0;
    transform: translateY(20px) scale(0.98);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    text-align: center;
    box-sizing: border-box;
}
.main-takeaway-card.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.8);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes scaleUp {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes slideInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}