/* Reset and Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paper colors */
    --paper-light: #f5f1e8;
    --paper-mid: #e8e3d6;
    --paper-dark: #d4cdb8;
    --ink-black: #2a2520;
    --ink-brown: #5a4a3a;
    --ink-light: #7a6a5a;
    --accent-rust: #a85f3f;
    --accent-olive: #6b7a5a;
    
    /* Typography */
    --font-serif: 'Crimson Pro', Georgia, serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
}

/* Paper texture background */
body {
    font-family: var(--font-serif);
    background-color: var(--paper-light);
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,.02) 2px, rgba(0,0,0,.02) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0,0,0,.02) 2px, rgba(0,0,0,.02) 4px);
    color: var(--ink-black);
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--paper-light);
    border-bottom: 2px solid var(--ink-black);
    padding: 1.5rem 0;
    z-index: 100;
    transition: transform 0.3s ease;
    will-change: transform, opacity, filter;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--ink-black);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-separator {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--ink-light);
    opacity: 0.4;
    user-select: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--ink-brown);
    text-decoration: none;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--accent-rust);
}

/* Hero Demo Section */
.hero-demo {
    padding: 8rem 0 4rem;
    background: var(--paper-light);
}

.yc-badge {
    text-align: center;
    margin-top: 3rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--ink-light);
    letter-spacing: 0.05em;
}

.demo-header {
    text-align: center;
    margin-bottom: 3rem;
}

.demo-header h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--ink-black);
    letter-spacing: -0.02em;
}

.demo-header p {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--ink-brown);
}

/* Demo Container */
.demo-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--paper-mid);
    border: 3px solid var(--ink-black);
    padding: 2rem;
    box-shadow: 8px 8px 0 var(--ink-black);
    position: relative;
}

.privacy-note {
    position: absolute;
    top: 0.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--ink-light);
    opacity: 0.7;
    z-index: 10;
}

.privacy-note svg {
    flex-shrink: 0;
}

/* Demo Input (Left) */
.demo-input {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.video-container {
    position: relative;
    background: var(--ink-black);
    border: 2px solid var(--ink-black);
    aspect-ratio: 4/3;
    overflow: hidden;
}

#video-preview,
#video-canvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#video-canvas {
    position: absolute;
    top: 0;
    left: 0;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 1rem;
    pointer-events: none;
}

.video-overlay > * {
    pointer-events: auto;
}

.status-indicator {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--paper-light);
    padding: 0.5rem 1rem;
    border: 2px solid var(--ink-black);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.demo-timer {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--paper-light);
    padding: 0.5rem 0.75rem;
    border: 2px solid var(--ink-black);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink-black);
}

.demo-timer #timer-value {
    display: inline-block;
    min-width: 2ch;
    text-align: center;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-olive);
    border-radius: 50%;
}

.status-dot.active {
    background: var(--accent-rust);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text {
    font-weight: 500;
}

/* Audio Visualizer */
.audio-visualizer {
    background: var(--paper-light);
    border: 2px solid var(--ink-black);
    padding: 1rem;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.audio-bars {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 40px;
}

.audio-bar {
    width: 8px;
    background: var(--ink-black);
    height: 10%;
    transition: height 0.1s ease;
}

/* TTS Display */
.tts-display {
    display: none;
    width: 100%;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.tts-display.active {
    display: flex;
}

.tts-text {
    font-size: 0.95rem;
    color: var(--ink-black);
    font-weight: 500;
    line-height: 1.4;
    word-wrap: break-word;
    text-align: center;
}

/* Emotion Graph */
.emotion-graph {
    display: none;
    width: 100%;
    position: relative;
}

.emotion-graph.active {
    display: block;
}

.emotion-status {
    position: absolute;
    top: 4px;
    right: 4px;
    font-size: 0.7rem;
    color: var(--ink-light);
    font-weight: 500;
}

.emotion-bars {
    display: flex;
    flex-direction: column;
    gap: 2px;
    height: 100%;
}

.emotion-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.emotion-label {
    font-size: 0.65rem;
    color: var(--ink-brown);
    font-weight: 500;
    min-width: 45px;
    text-align: right;
}

.emotion-fill {
    flex: 1;
    height: 6px;
    background: var(--paper-dark);
    border-radius: 3px;
    position: relative;
    overflow: hidden;
}

.emotion-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--emotion-width, 0%);
    background: linear-gradient(90deg, var(--accent-rust), var(--accent-olive));
    border-radius: 3px;
    transition: width 0.5s ease;
}

/* Start Button */
.start-button {
    background: var(--ink-black);
    color: var(--paper-light);
    border: none;
    padding: 1.25rem 2rem;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.start-button:hover {
    background: var(--accent-rust);
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--ink-black);
}

.start-button:active {
    transform: translate(0, 0);
    box-shadow: none;
}

.start-button.active {
    background: var(--accent-rust);
}

/* Thank You Container */
.thank-you-container {
    background: var(--paper-light);
    border: 2px solid var(--ink-black);
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 400px;
}

.thank-you-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.thank-you-header h3 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--ink-black);
    margin: 0 0 0.5rem 0;
}

.thank-you-header p {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--ink-faded);
    margin: 0;
}

.thank-you-actions {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.cta-button {
    flex: 1;
    display: block;
    text-align: center;
    padding: 1rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid var(--ink-black);
    transition: all 0.2s;
    cursor: pointer;
}

.cta-button.primary {
    background: var(--ink-black);
    color: var(--paper-light);
}

.cta-button.primary:hover {
    background: var(--accent-rust);
    border-color: var(--accent-rust);
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--ink-black);
}

.cta-button.secondary {
    background: var(--paper-light);
    color: var(--ink-black);
}

.cta-button.secondary:hover {
    background: var(--accent-olive);
    border-color: var(--accent-olive);
    color: var(--paper-light);
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--ink-black);
}

.cta-button:active {
    transform: translate(0, 0);
    box-shadow: none;
}

.thank-you-share {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--ink-faded);
}

.share-button {
    background: none;
    border: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--ink-faded);
    cursor: pointer;
    transition: all 0.2s;
    padding: 0.5rem 1rem;
}

.share-button:hover {
    color: var(--accent-rust);
    text-decoration: underline;
}

/* Demo Output (Right) */
.demo-output {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.events-panel,
.captions-panel {
    background: var(--paper-light);
    border: 2px solid var(--ink-black);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    min-height: 0; /* Important for flex children */
}

.events-panel {
    flex: 1;
    min-height: 300px;
}

.captions-panel {
    flex: 1;
    min-height: 300px;
}

.events-panel h3,
.captions-panel h3 {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--ink-black);
}

.events-stream,
.captions-display {
    flex: 1;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    min-height: 0; /* Allow flex children to shrink */
    max-height: 250px; /* Fixed max height */
}

.empty-state {
    color: var(--ink-light);
    font-style: italic;
}

/* Custom scrollbar styling for vintage aesthetic */
.events-stream::-webkit-scrollbar,
.captions-display::-webkit-scrollbar {
    width: 8px;
}

.events-stream::-webkit-scrollbar-track,
.captions-display::-webkit-scrollbar-track {
    background: var(--paper-mid);
}

.events-stream::-webkit-scrollbar-thumb,
.captions-display::-webkit-scrollbar-thumb {
    background: var(--ink-black);
    border-radius: 0;
}

.events-stream::-webkit-scrollbar-thumb:hover,
.captions-display::-webkit-scrollbar-thumb:hover {
    background: var(--accent-rust);
}

/* Emotion Panel */
.emotion-panel {
    background: var(--paper-light);
    border: 2px solid var(--ink-black);
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0; /* Important for flex children */
}

.emotion-panel h3 {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--ink-black);
    color: var(--ink-black);
}

.emotion-display {
    display: flex;
}

/* Emotion Spectrum - Horizontal Bars */
.emotion-spectrum {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    width: 100%;
}

.emotion-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.emotion-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ink-black);
    font-weight: 600;
    min-width: 55px;
    flex-shrink: 0;
    text-align: right;
}

.emotion-bar {
    flex: 1;
    height: 8px;
    background: var(--paper-dark);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.emotion-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-rust), var(--accent-olive));
    border-radius: 4px;
    transition: width 0.5s ease;
}

.emotion-value {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--ink-brown);
    font-weight: 600;
    min-width: 32px;
    flex-shrink: 0;
    text-align: right;
}

/* Event Item */
.event-item {
    background: var(--paper-mid);
    border-left: 3px solid var(--accent-rust);
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    animation: slideIn 0.3s ease;
}

/* Emotion Event Item */
.event-item.emotion-event {
    border-left-color: #6366f1; /* Indigo color for emotion events */
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.event-type {
    font-weight: 600;
    color: var(--ink-black);
    display: block;
    margin-bottom: 0.25rem;
}

.event-value {
    color: var(--ink-brown);
}

.event-timestamp {
    font-size: 0.75rem;
    color: var(--ink-light);
    display: block;
    margin-top: 0.25rem;
}

/* Caption Item */
.caption-item {
    background: var(--paper-mid);
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-left: 3px solid var(--accent-olive);
    animation: slideIn 0.3s ease;
}

/* Multimodal Caption - streaming style */
.caption-item.multimodal-caption {
    border-left-color: var(--accent-rust);
}

.caption-item.multimodal-caption .caption-text {
    font-style: italic;
}

.caption-text {
    color: var(--ink-black);
    line-height: 1.5;
}

.caption-meta {
    font-size: 0.75rem;
    color: var(--ink-light);
    margin-top: 0.5rem;
}

/* Scene Observation - Structured Display */
.scene-observation {
    background: var(--paper-mid);
    padding: 0.65rem;
    margin-bottom: 0.6rem;
    border: 1px solid var(--ink-black);
    border-left: 3px solid var(--accent-rust);
    animation: slideIn 0.3s ease;
    font-size: 0.8rem;
}

.scene-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--paper-dark);
}

.scene-timestamp {
    font-size: 0.7rem;
    color: var(--ink-light);
    font-weight: 500;
}

.scene-row {
    display: flex;
    gap: 0.4rem;
    margin-bottom: 0.4rem;
    align-items: flex-start;
}

.scene-row:last-child {
    margin-bottom: 0;
}

.scene-label {
    font-weight: 600;
    color: var(--ink-black);
    min-width: 70px;
    flex-shrink: 0;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.scene-value {
    color: var(--ink-brown);
    line-height: 1.4;
    font-size: 0.75rem;
}

/* Speech row - highlighted */
.scene-row.speech {
    background: rgba(168, 95, 63, 0.08);
    padding: 0.3rem 0.4rem;
    margin-left: -0.4rem;
    margin-right: -0.4rem;
}

.scene-row.speech .scene-value {
    font-style: italic;
    color: var(--ink-black);
}

/* Changes row - highlighted */
.scene-row.changes {
    background: rgba(107, 122, 90, 0.1);
    padding: 0.3rem 0.4rem;
    margin-left: -0.4rem;
    margin-right: -0.4rem;
}

.scene-row.changes .scene-value {
    font-weight: 500;
    color: var(--accent-olive);
}

/* People list */
.scene-people {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.person-item {
    font-size: 0.75rem;
    color: var(--ink-brown);
    line-height: 1.3;
}

/* Events */
.scene-events {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    flex: 1;
}

.event-tag {
    display: inline-block;
    background: var(--paper-light);
    border: 1px solid var(--ink-black);
    padding: 0.15rem 0.4rem;
    font-size: 0.65rem;
    color: var(--ink-black);
    border-radius: 2px;
}

/* Objects */
.scene-objects {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    flex: 1;
}

.object-tag {
    display: inline-block;
    background: var(--paper-light);
    border: 1px solid var(--paper-dark);
    padding: 0.1rem 0.35rem;
    font-size: 0.65rem;
    color: var(--ink-brown);
    border-radius: 2px;
}

/* Emotion value in scene */
.emotion-value {
    font-style: italic;
    color: var(--accent-olive);
}

/* Continuous Text Flow */
.continuous-container {
    background: var(--paper-mid);
    border-left: 3px solid var(--accent-rust);
    margin-bottom: 0.5rem;
    animation: slideIn 0.3s ease;
}

.continuous-container.transcript {
    border-left-color: #5a7fa8;
}

.continuous-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ink-light);
    padding: 0.3rem 0.5rem 0.2rem 0.5rem;
    background: rgba(0, 0, 0, 0.03);
    border-bottom: 1px solid var(--paper-dark);
}

.continuous-text {
    color: var(--ink-black);
    line-height: 1.6;
    font-size: 0.85rem;
    padding: 0.5rem;
}

/* Content Sections */
section {
    padding: 4rem 0;
}

.section-content {
    max-width: 900px;
    margin: 0 auto;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--ink-black);
    text-align: center;
}

.lead {
    font-size: 1.3rem;
    line-height: 1.6;
    color: var(--ink-brown);
    text-align: center;
    margin-bottom: 3rem;
}

/* What Section */
.what-section {
    background: var(--paper-mid);
    border-top: 2px solid var(--ink-black);
    border-bottom: 2px solid var(--ink-black);
}

.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.two-column h3 {
    font-family: var(--font-mono);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    color: var(--ink-black);
}

.two-column p {
    color: var(--ink-brown);
    line-height: 1.7;
}

/* How Section */
.how-section {
    background: var(--paper-light);
    padding-bottom: 6rem;
}

/* Mode Toggle Wrapper with Connected Labels */
.mode-toggle-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
    z-index: 10;
}

.mode-subtitle-mobile {
    display: none;
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--ink-brown);
    text-align: center;
    margin-bottom: 1.5rem;
}

.mode-labels-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1100px;
    margin: 0 auto 2rem;
    position: relative;
    padding: 0 2rem;
}

.mode-label {
    position: relative;
    text-align: center;
    flex: 0 0 auto;
}

.mode-label.left {
    margin-right: auto;
    padding-right: 3rem;
}

.mode-label.right {
    margin-left: auto;
    padding-left: 3rem;
}

.label-text {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--ink-brown);
    display: block;
}

.connector-line {
    position: absolute;
    top: 100%;
    left: 50%;
    width: 2px;
    height: 60px;
    background: var(--ink-black);
    transform-origin: top center;
}

.mode-label.left .connector-line {
    transform: translateX(-50%) rotate(-30deg);
}

.mode-label.right .connector-line {
    transform: translateX(-50%) rotate(30deg);
}

.connector-line::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 6px solid var(--ink-black);
}

/* Mode Toggle Switch */
.mode-toggle {
    display: flex;
    justify-content: center;
    gap: 0;
    border: 3px solid var(--ink-black);
    width: fit-content;
    flex-shrink: 0;
    position: relative;
    z-index: 10;
}

.toggle-btn {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 1rem 2.5rem;
    background: var(--paper-light);
    color: var(--ink-brown);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.toggle-btn:first-child {
    border-right: 3px solid var(--ink-black);
}

.toggle-btn:hover {
    background: var(--paper-mid);
}

.toggle-btn.active {
    background: var(--ink-black);
    color: var(--paper-light);
}

.toggle-label {
    position: relative;
    z-index: 1;
}

/* Paths Container - Overlapping Cards */
.paths-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    margin-top: 1rem;
    min-height: 520px;
}

.path-container {
    background: var(--paper-mid);
    border: 2px solid var(--ink-black);
    padding: 2.5rem;
    position: absolute;
    width: calc(100% - 140px);
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    transition: opacity 0.4s ease, visibility 0.4s ease;
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.path-container[data-path="realtime"] {
    z-index: 1;
}

.path-container[data-path="async"] {
    z-index: 1;
}

.path-container:not(.active) {
    opacity: 0;
    visibility: hidden;
    z-index: 0;
    pointer-events: none;
}

.path-container.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%);
    z-index: 1;
    pointer-events: none;
}

.path-header {
    margin-bottom: 1.5rem;
}

.path-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    background: var(--ink-black);
    color: var(--paper-light);
    padding: 0.4rem 1rem;
    border: 2px solid var(--ink-black);
    margin-bottom: 0.75rem;
}

.path-header h3 {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.path-description {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--ink-brown);
    margin-top: 0.25rem;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    flex: 1;
}

.step {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.step-number {
    width: 60px;
    height: 60px;
    border: 3px solid var(--ink-black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    background: var(--paper-light);
}

.step-content h3,
.step-content h4 {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.step-content p {
    color: var(--ink-brown);
    margin-bottom: 1rem;
}

.code-sample {
    background: var(--ink-black);
    color: var(--paper-light);
    padding: 1rem;
    border: 2px solid var(--ink-black);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-top: 1rem;
    overflow-x: auto;
}

.code-sample code {
    display: block;
    white-space: pre;
}

/* Examples Section */
.examples-section {
    background: var(--paper-mid);
    border-top: 2px solid var(--ink-black);
}

.section-tagline {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--ink-brown);
    margin-top: -1rem;
    margin-bottom: 3rem;
}

/* Search Demo */
.search-demo {
    max-width: 900px;
    margin: 0 auto 4rem;
}

.search-bar {
    background: var(--ink-black);
    border: 3px solid var(--ink-black);
    padding: 1.5rem 2rem;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--paper-light);
    min-height: 80px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.search-prompt {
    color: var(--accent-rust);
    font-weight: 600;
}

.search-query {
    color: var(--paper-light);
}

.cursor {
    color: var(--accent-rust);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.search-context {
    background: var(--paper-mid);
    border: 2px solid var(--ink-black);
    border-top: none;
    padding: 1rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--ink-brown);
    min-height: 50px;
    display: flex;
    align-items: center;
}

/* Queries Grid */
.queries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}
/* Query Blocks */
.query-block {
    background: var(--paper-light);
    border: 2px solid var(--ink-black);
    padding: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.query-block:hover {
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--ink-black);
}

.query-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-light);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--paper-dark);
}

.query-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.query {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--ink-black);
    line-height: 1.6;
    padding-left: 1.5rem;
    position: relative;
}

.query::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent-rust);
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    background: var(--paper-light);
    padding: 5rem 0;
}

.cta-content {
    text-align: center;
}

.cta-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--ink-brown);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    padding: 1rem 2rem;
    border: 2px solid var(--ink-black);
    transition: all 0.2s;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
}

.btn-primary {
    background: var(--ink-black);
    color: var(--paper-light);
}

.btn-primary:hover {
    background: var(--accent-rust);
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--ink-black);
}

.btn-secondary {
    background: var(--paper-light);
    color: var(--ink-black);
}

.btn-secondary:hover {
    background: var(--paper-mid);
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--ink-black);
}

/* Footer */
.footer {
    background: var(--paper-mid);
    border-top: 2px solid var(--ink-black);
    padding: 3rem 0;
}

.footer-content {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    opacity: 0;
}

.footer-divider {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    align-items: center;
}

.divider-dot {
    width: 4px;
    height: 4px;
    background: var(--ink-light);
    border-radius: 50%;
    opacity: 0;
}

.footer-copy {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--ink-light);
    opacity: 0;
    margin-left: auto;
}

/* Responsive */
@media (max-width: 968px) {
    .demo-container {
        grid-template-columns: 1fr;
    }

    .two-column {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .queries-grid {
        grid-template-columns: 1fr;
    }

    .step {
        grid-template-columns: 50px 1fr;
        gap: 1rem;
    }

    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .search-bar {
        font-size: 1rem;
        padding: 1rem 1.5rem;
    }
    
    .paths-container {
        min-height: auto;
    }
    
    .path-container {
        position: relative;
        width: 100%;
        padding: 1.5rem;
        margin-bottom: 1.5rem;
        left: auto;
        transform: none !important;
        min-height: auto;
    }
    
    .path-container:not(.active) {
        display: none;
    }
    
    .path-header h3 {
        font-size: 1.2rem;
    }
    
    .path-description {
        font-size: 1rem;
    }
    
    .toggle-btn {
        padding: 0.9rem 2rem;
        font-size: 0.85rem;
    }
    
    .mode-labels-row {
        display: none;
    }
    
    .mode-subtitle-mobile {
        display: block;
        font-size: 1rem;
    }
}

@media (max-width: 640px) {
    .demo-header h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }
    
    .yc-badge {
        font-size: 0.75rem;
        margin-top: 2rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .nav-separator {
        font-size: 0.8rem;
    }

    .nav-links a {
        font-size: 0.8rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .footer-divider {
        position: relative;
        left: auto;
        transform: none;
        margin: 0.5rem 0;
    }
    
    .queries-grid {
        grid-template-columns: 1fr;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .path-container {
        padding: 1.25rem;
    }
    
    .path-badge {
        font-size: 0.7rem;
        padding: 0.35rem 0.8rem;
    }
    
    .path-header h3 {
        font-size: 1.1rem;
    }
    
    .step-content h3,
    .step-content h4 {
        font-size: 0.95rem;
    }
    
    .search-bar {
        font-size: 0.9rem;
        padding: 1rem;
        flex-wrap: wrap;
    }
    
    .query {
        font-size: 0.85rem;
    }
    
    .toggle-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.75rem;
    }
    
    .mode-subtitle-mobile {
        font-size: 0.95rem;
    }
}

/* ===========================
   Waitlist Modal Styles
   =========================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(42, 37, 32, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: 1rem;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--paper-light);
    border: 3px solid var(--ink-black);
    box-shadow: 12px 12px 0 var(--ink-black);
    max-width: 500px;
    width: 100%;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    color: var(--ink-brown);
    transition: color 0.2s;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--accent-rust);
}

.modal-header {
    padding: 2rem 2rem 1.5rem;
    border-bottom: 2px solid var(--ink-black);
}

.modal-header h3 {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 0.5rem 0;
    color: var(--ink-black);
}

.modal-header p {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--ink-brown);
    margin: 0;
}

.modal-body {
    padding: 2rem;
}

.modal-step {
    display: block;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    color: var(--ink-black);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    font-family: var(--font-serif);
    font-size: 1rem;
    border: 2px solid var(--ink-black);
    background: var(--paper-mid);
    color: var(--ink-black);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-rust);
    box-shadow: 4px 4px 0 var(--ink-black);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.error-message {
    display: none;
    color: var(--accent-rust);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.modal-btn {
    flex: 1;
    padding: 1rem 1.5rem;
    font-size: 0.9rem;
    cursor: pointer;
}

.modal-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.success-message {
    text-align: center;
    padding: 2rem 1rem;
}

.success-message h3 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--ink-black);
    margin: 0 0 1rem 0;
}

.success-message p {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--ink-brown);
    margin: 0;
}

/* Responsive modal styles */
@media (max-width: 640px) {
    .modal-content {
        max-width: 100%;
        margin: 1rem;
    }
    
    .modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .modal-header h3 {
        font-size: 1.25rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .modal-btn {
        width: 100%;
    }
}