/* FabricBloc Hackathon Submission Styles */

:root {
    --primary: #E91E7B;
    --primary-light: #FF4D9D;
    --primary-dark: #C4186A;
    --arc-blue: #0066FF;
    --dark-bg: #0A0A0F;
    --dark-secondary: #12121A;
    --dark-tertiary: #1A1A24;
    --light-bg: #FAFAFA;
    --white: #FFFFFF;
    --gray-100: #F5F5F7;
    --gray-200: #E8E8ED;
    --gray-300: #D1D1D6;
    --gray-400: #A1A1A6;
    --gray-500: #6E6E73;
    --gray-600: #48484A;
    --text-dark: #1D1D1F;
    --text-light: #F5F5F7;
    --success: #34C759;
    --warning: #FF9500;
    --error: #FF3B30;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-main);
    background: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.6;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 100;
}

.nav-logo img {
    height: 28px;
    width: auto;
}

.nav-logo .logo-black {
    display: none;
}

.nav.light-mode .logo-white {
    display: none;
}

.nav.light-mode .logo-black {
    display: block;
}

.nav.light-mode .nav-btn {
    border-color: rgba(0, 0, 0, 0.2);
    color: var(--text-dark);
}

.nav.light-mode .nav-btn:hover:not(:disabled) {
    background: rgba(0, 0, 0, 0.05);
}

.nav.light-mode .slide-counter {
    color: var(--gray-600);
}

.nav-badge {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.hackathon-badge {
    background: linear-gradient(135deg, var(--primary), var(--arc-blue));
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.slide-counter {
    font-size: 14px;
    color: var(--gray-400);
    font-variant-numeric: tabular-nums;
}

.nav-btn {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    color: var(--text-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.nav-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary);
}

.nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 99;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--arc-blue));
    width: 8.33%;
    transition: width 0.3s ease;
}

/* Slides */
.slides-container {
    height: 100vh;
    width: 100%;
    overflow: hidden;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 100px 80px 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateX(50px);
    transition: all 0.5s ease;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.slide-dark {
    background: var(--dark-bg);
    color: var(--text-light);
}

.slide-light {
    background: var(--light-bg);
    color: var(--text-dark);
}

.slide-content {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}

.slide-accent {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 100px;
    background: linear-gradient(180deg, var(--primary), var(--arc-blue));
    opacity: 0.8;
}

/* Typography */
h1 {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

h2 {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}

.highlight {
    color: var(--primary);
}

.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 12px;
}

.subtitle {
    font-size: 18px;
    color: var(--gray-500);
    margin-bottom: 40px;
}

.slide-dark .subtitle {
    color: var(--gray-400);
}

/* Title Slide */
.title-slide {
    text-align: center;
    max-width: 850px;
}

.title-badge {
    margin-bottom: 24px;
}

.arc-badge {
    display: inline-block;
    background: var(--arc-blue);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.title-logo img {
    height: 50px;
    margin-bottom: 32px;
}

.title-sub {
    font-size: 22px;
    color: var(--gray-400);
    margin-bottom: 32px;
    line-height: 1.5;
}

.title-tags {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.tag {
    padding: 8px 20px;
    background: var(--dark-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 14px;
    color: var(--gray-300);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-large {
    padding: 16px 32px;
    font-size: 17px;
}

/* Problem Grid */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.problem-card {
    background: var(--white);
    border-radius: 16px;
    padding: 28px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.problem-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.problem-card h3 {
    margin-bottom: 12px;
}

.problem-card p {
    color: var(--gray-500);
    font-size: 15px;
}

.problem-statement {
    background: var(--primary);
    color: white;
    padding: 24px 32px;
    border-radius: 12px;
    text-align: center;
    font-size: 18px;
}

.problem-statement strong {
    color: white;
}

/* Solution Flow */
.solution-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin: 48px 0;
    flex-wrap: wrap;
}

.flow-step {
    background: var(--dark-secondary);
    border-radius: 16px;
    padding: 24px;
    width: 200px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.flow-number {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 16px;
}

.flow-content h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.flow-content p {
    font-size: 13px;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.flow-content code {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--primary);
    background: rgba(233, 30, 123, 0.1);
    padding: 8px;
    border-radius: 6px;
}

.flow-arrow {
    font-size: 24px;
    color: var(--gray-500);
}

.solution-key {
    text-align: center;
}

.key-point {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--dark-secondary);
    padding: 16px 24px;
    border-radius: 12px;
    border: 1px solid var(--success);
}

.key-icon {
    font-size: 24px;
}

/* Is / Is Not Grid */
.is-isnot-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin: 40px 0;
}

.is-column, .isnot-column {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.is-column {
    border-top: 4px solid var(--success);
}

.isnot-column {
    border-top: 4px solid var(--error);
}

.is-column h3, .isnot-column h3 {
    margin-bottom: 20px;
}

.is-column ul, .isnot-column ul {
    list-style: none;
}

.is-column li, .isnot-column li {
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-600);
}

.is-column li:last-child, .isnot-column li:last-child {
    border-bottom: none;
}

.quote-box {
    background: linear-gradient(135deg, var(--primary), var(--arc-blue));
    color: white;
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    font-size: 20px;
}

.quote-box strong {
    color: white;
}

/* Demo Sequence - Slide 5 */
.demo-sequence {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 12px;
    margin-top: 48px;
    flex-wrap: wrap;
}

.sequence-step {
    background: var(--dark-secondary);
    border-radius: 16px;
    padding: 20px;
    min-width: 160px;
    max-width: 180px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    animation: stepFadeIn 0.5s ease forwards;
}

.sequence-step[data-step="1"] { animation-delay: 0.2s; }
.sequence-step[data-step="2"] { animation-delay: 0.6s; }
.sequence-step[data-step="3"] { animation-delay: 1.0s; }
.sequence-step[data-step="4"] { animation-delay: 1.4s; }
.sequence-step[data-step="5"] { animation-delay: 1.8s; }

@keyframes stepFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sequence-arrow {
    font-size: 24px;
    color: var(--gray-500);
    margin-top: 50px;
    opacity: 0;
    animation: arrowFadeIn 0.3s ease forwards;
}

.sequence-arrow:nth-of-type(2) { animation-delay: 0.5s; }
.sequence-arrow:nth-of-type(4) { animation-delay: 0.9s; }
.sequence-arrow:nth-of-type(6) { animation-delay: 1.3s; }
.sequence-arrow:nth-of-type(8) { animation-delay: 1.7s; }

@keyframes arrowFadeIn {
    to { opacity: 1; }
}

.step-number {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

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

.step-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-400);
    margin-bottom: 12px;
    margin-top: 8px;
}

.user-bubble {
    background: var(--primary);
    color: white;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 13px;
    font-style: italic;
}

.step-code {
    background: var(--dark-tertiary);
    padding: 12px;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    text-align: left;
    line-height: 1.6;
}

.code-key {
    color: var(--primary);
}

.step-badge {
    margin-top: 10px;
    font-size: 10px;
    padding: 4px 10px;
    background: rgba(255, 149, 0, 0.2);
    color: var(--warning);
    border-radius: 12px;
    display: inline-block;
}

.step-badge.arc {
    background: rgba(52, 199, 89, 0.2);
    color: var(--success);
}

.step-checks {
    text-align: left;
}

.check-item {
    font-size: 12px;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.check-item:last-child {
    border-bottom: none;
}

.check-item.pass {
    color: var(--success);
}

.step-confirm {
    padding: 8px 0;
}

.confirm-btn-demo {
    background: var(--success);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
}

.success-step {
    border-color: var(--success);
}

.step-success {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.success-icon {
    font-size: 32px;
}

.tx-hash {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--success);
    background: rgba(52, 199, 89, 0.1);
    padding: 6px 12px;
    border-radius: 6px;
}

.demo-cta {
    text-align: center;
    margin-top: 40px;
}

/* Permission Scenarios */
.permission-scenarios {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 40px;
}

.scenario {
    background: var(--white);
    border-radius: 16px;
    padding: 24px 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.scenario-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.risk-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.risk-badge.green {
    background: rgba(52, 199, 89, 0.15);
    color: var(--success);
}

.risk-badge.yellow {
    background: rgba(255, 149, 0, 0.15);
    color: var(--warning);
}

.risk-badge.red {
    background: rgba(255, 59, 48, 0.15);
    color: var(--error);
}

.scenario h3 {
    margin: 0;
    font-size: 18px;
}

.scenario-flow {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 12px;
}

.scenario-flow strong {
    color: var(--primary);
}

.scenario p {
    color: var(--gray-500);
    font-size: 14px;
    margin: 0;
}

.permission-options {
    display: flex;
    gap: 12px;
    margin: 16px 0;
}

.perm-btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid var(--gray-300);
    background: white;
    color: var(--gray-600);
    cursor: pointer;
}

.perm-btn.primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Architecture Diagram */
.architecture-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    margin-top: 40px;
}

.arch-layer {
    width: 100%;
    max-width: 600px;
    padding: 24px 32px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.layer-label {
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 2px;
    width: 120px;
    flex-shrink: 0;
}

.layer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.layer-content span {
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
}

.layer-note {
    background: rgba(52, 199, 89, 0.2) !important;
    color: var(--success) !important;
}

.user-layer {
    background: var(--dark-secondary);
    border: 1px solid var(--gray-600);
}

.frontend-layer {
    background: var(--dark-secondary);
    border: 1px solid var(--arc-blue);
}

.backend-layer {
    background: var(--dark-secondary);
    border: 1px solid var(--primary);
}

.chain-layer {
    background: var(--dark-secondary);
    border: 1px solid var(--success);
}

.arch-arrow {
    font-size: 24px;
    color: var(--gray-500);
    padding: 8px 0;
}

/* Tech Grid */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.tech-card {
    background: var(--white);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.tech-card h3 {
    color: var(--primary);
    margin-bottom: 16px;
    font-size: 18px;
}

.tech-card ul {
    list-style: none;
}

.tech-card li {
    padding: 8px 0;
    color: var(--gray-600);
    font-size: 14px;
    border-bottom: 1px solid var(--gray-100);
}

.tech-card li:last-child {
    border-bottom: none;
}

/* Trust Grid */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.trust-item {
    background: var(--dark-secondary);
    border-radius: 16px;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.trust-question {
    font-size: 16px;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.trust-answer {
    font-size: 18px;
    color: var(--text-light);
}

.trust-answer strong {
    color: var(--success);
}

.trust-principle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: linear-gradient(135deg, var(--primary), var(--arc-blue));
    padding: 24px 32px;
    border-radius: 12px;
}

.principle-icon {
    font-size: 32px;
}

.trust-principle p {
    font-size: 18px;
    margin: 0;
}

/* Novel Points */
.novel-points {
    margin-top: 40px;
}

.novel-card {
    background: var(--white);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.novel-card.main {
    background: linear-gradient(135deg, var(--primary), var(--arc-blue));
    color: white;
    text-align: center;
    padding: 40px;
    margin-bottom: 24px;
}

.novel-card.main h3 {
    font-size: 28px;
    margin-bottom: 16px;
    color: white;
}

.novel-card.main p {
    font-size: 18px;
    opacity: 0.9;
    color: white;
}

.novel-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.novel-card h3 {
    color: var(--primary);
    margin-bottom: 12px;
}

.novel-card p {
    color: var(--gray-500);
    font-size: 15px;
}

.differentiator {
    text-align: center;
    margin-top: 32px;
    font-size: 20px;
    color: var(--gray-600);
}

.differentiator strong {
    color: var(--primary);
}

/* Limitations */
.limitations-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.limitation-category {
    background: var(--white);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.limitation-category h3 {
    color: var(--gray-600);
    margin-bottom: 16px;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.limitation-category ul {
    list-style: none;
}

.limitation-category li {
    padding: 10px 0;
    color: var(--gray-500);
    font-size: 14px;
    border-bottom: 1px solid var(--gray-100);
}

.limitation-category li:last-child {
    border-bottom: none;
}

.honesty-note {
    text-align: center;
    padding: 20px;
    background: rgba(52, 199, 89, 0.1);
    border-radius: 12px;
    color: var(--success);
}

/* CTA Slide */
.cta-slide {
    text-align: center;
    max-width: 700px;
}

.cta-logo img {
    height: 50px;
    margin-bottom: 40px;
}

.cta-slide h2 {
    font-size: 48px;
    margin-bottom: 24px;
    line-height: 1.2;
}

.cta-statement {
    font-size: 18px;
    color: var(--gray-400);
    margin-bottom: 40px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 48px;
}

.team-section {
    margin-bottom: 32px;
}

.team-label {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 8px;
}

.team-section a {
    color: var(--primary);
    text-decoration: none;
}

.arc-powered {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.arc-powered span {
    color: var(--arc-blue);
    font-size: 14px;
    font-weight: 500;
}

/* Keyboard Hint */
.keyboard-hint {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 13px;
    color: var(--gray-500);
    opacity: 0.6;
}

kbd {
    display: inline-block;
    padding: 4px 8px;
    background: var(--dark-tertiary);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
}

/* Sponsor Logos - Title Slide */
.sponsor-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
}

.sponsor-logo {
    height: 40px;
    width: auto;
}

.sponsor-divider {
    font-size: 20px;
    color: var(--gray-500);
}

/* SDK Capabilities - Slide 4 */
#slide-4 {
    align-items: flex-start;
    padding-top: 90px;
}

#slide-4 .slide-content {
    margin-top: 0;
}

.sdk-capabilities {
    margin-top: 30px;
}

.capability-card {
    background: var(--white);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.capability-card.main {
    text-align: center;
    padding: 28px;
    margin-bottom: 20px;
    border: 2px solid var(--primary);
}

.capability-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.capability-card.main h3 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 12px;
}

.capability-card.main p {
    font-size: 16px;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.capability-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.capability-row .capability-card {
    text-align: center;
    padding: 20px;
}

.capability-row .capability-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.capability-row h3 {
    color: var(--text-dark);
    font-size: 18px;
}

.capability-row p {
    color: var(--gray-500);
    font-size: 14px;
}

.sdk-positioning {
    margin-top: 24px;
}

.position-box {
    background: linear-gradient(135deg, var(--dark-bg), var(--dark-secondary));
    border: 1px solid var(--primary);
    border-radius: 12px;
    padding: 24px 32px;
    text-align: center;
}

.position-box h4 {
    color: var(--primary);
    margin-bottom: 8px;
    font-size: 16px;
}

.position-box p {
    color: var(--gray-400);
    font-size: 15px;
    margin: 0;
}

/* Architecture Grid - 4x4 */
#slide-7 {
    align-items: flex-start;
    padding-top: 85px;
}

.architecture-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    grid-template-rows: auto auto auto auto auto auto;
    gap: 8px;
    margin-top: 24px;
    align-items: center;
    justify-items: center;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.arch-box {
    width: 100%;
    max-width: 220px;
    padding: 12px 16px;
    border-radius: 10px;
    text-align: center;
    border: 2px solid;
}

.arch-box-label {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 8px;
    opacity: 0.8;
}

.arch-box-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: center;
}

.arch-icon {
    font-size: 22px;
}

.arch-box-content span {
    font-size: 11px;
    color: var(--gray-300);
}

.arch-note {
    background: rgba(52, 199, 89, 0.2);
    color: var(--success) !important;
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 9px !important;
}

.user-box {
    background: var(--dark-secondary);
    border-color: var(--gray-500);
}

.frontend-box {
    background: var(--dark-secondary);
    border-color: var(--arc-blue);
}

.ai-box {
    background: var(--dark-secondary);
    border-color: var(--warning);
}

.backend-box {
    background: var(--dark-secondary);
    border-color: var(--primary);
}

.policy-box {
    background: var(--dark-secondary);
    border-color: #8B5CF6;
}

.chain-box {
    background: var(--dark-secondary);
    border-color: var(--success);
}

.arch-connector {
    font-size: 18px;
    color: var(--gray-500);
}

.arch-connector.horizontal {
    justify-self: center;
}

.arch-connector.vertical-left,
.arch-connector.vertical-right {
    grid-column: span 3;
    font-size: 16px;
}

.arch-key {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 20px;
}

.key-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--gray-400);
}

.key-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.key-dot.red {
    background: var(--error);
}

.key-dot.green {
    background: var(--success);
}

/* Tech Card Featured State */
.tech-card.featured {
    border: 2px solid var(--primary);
    position: relative;
}

.tech-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
}

.tech-card.featured h3 {
    color: var(--text-dark);
}

/* Powered By Section */
.powered-by {
    margin-bottom: 32px;
}

.powered-by > span {
    display: block;
    font-size: 12px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.powered-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.powered-item {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-300);
}

.powered-divider {
    color: var(--gray-600);
}

/* Sponsor Footer */
.sponsor-footer {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sponsor-logo-footer {
    height: 32px;
    width: auto;
    opacity: 0.8;
}

/* CTA Logos */
.cta-logos {
    margin-bottom: 32px;
}

.cta-logo-main {
    height: 50px;
    width: auto;
}

/* KeyFlo Showcase - Slide 12 */
#slide-12 {
    align-items: flex-start;
    padding-top: 85px;
}

.keyflo-showcase {
    margin-top: 20px;
}

.keyflo-hero {
    display: flex;
    align-items: center;
    gap: 32px;
    background: var(--dark-secondary);
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.keyflo-info {
    flex: 1;
}

.keyflo-logo {
    margin-bottom: 12px;
}

.keyflo-logo-img {
    height: 32px;
    width: auto;
    margin-bottom: 4px;
}

.keyflo-tagline {
    font-size: 10px;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

.keyflo-desc {
    font-size: 14px;
    color: var(--gray-300);
    line-height: 1.5;
    margin: 0;
}

.keyflo-desc strong {
    color: var(--primary);
}

.keyflo-screenshot {
    flex-shrink: 0;
}

.keyflo-screenshot img {
    height: 160px;
    width: auto;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.keyflo-modes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.mode-card {
    background: var(--dark-secondary);
    border-radius: 12px;
    padding: 18px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: border-color 0.2s ease;
}

.mode-card:hover {
    border-color: var(--primary);
}

.mode-icon {
    font-size: 28px;
    margin-bottom: 10px;
}

.mode-card h4 {
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--text-light);
}

.mode-card p {
    font-size: 12px;
    color: var(--gray-400);
    margin-bottom: 10px;
}

.mode-card code {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--primary);
    background: rgba(233, 30, 123, 0.1);
    padding: 8px 10px;
    border-radius: 6px;
}

.keyflo-cta {
    text-align: center;
    margin-top: 16px;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary), var(--arc-blue));
    border-radius: 10px;
}

.keyflo-cta p {
    font-size: 15px;
    margin: 0;
    color: white;
}

.keyflo-cta strong {
    color: white;
}

/* Responsive */
@media (max-width: 1100px) {
    .slide {
        padding: 100px 40px 60px;
    }

    h1 {
        font-size: 42px;
    }

    h2 {
        font-size: 32px;
    }

    .problem-grid,
    .tech-grid,
    .limitations-grid,
    .novel-row,
    .keyflo-modes {
        grid-template-columns: repeat(2, 1fr);
    }

    .keyflo-hero {
        flex-direction: column;
        text-align: center;
    }

    .keyflo-screenshot img {
        height: 180px;
    }

    .demo-sequence {
        gap: 8px;
    }

    .sequence-step {
        min-width: 140px;
        max-width: 150px;
        padding: 16px;
    }

    .sequence-arrow {
        font-size: 18px;
        margin-top: 40px;
    }

    .solution-flow {
        flex-direction: column;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }

    .flow-step {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    .slide {
        padding: 80px 24px 60px;
    }

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 26px;
    }

    .problem-grid,
    .is-isnot-grid,
    .tech-grid,
    .trust-grid,
    .limitations-grid,
    .novel-row,
    .keyflo-modes {
        grid-template-columns: 1fr;
    }

    .demo-sequence {
        flex-direction: column;
        align-items: center;
    }

    .sequence-step {
        min-width: 250px;
        max-width: 280px;
    }

    .sequence-arrow {
        transform: rotate(90deg);
        margin: 8px 0;
    }

    .architecture-diagram {
        overflow-x: auto;
    }

    .hackathon-badge {
        display: none;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .keyboard-hint {
        display: none;
    }
}