/* Presentation Container */
.presentation-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px;
    min-height: calc(100vh - 200px);
}

.briefing-header {
    position: relative;
    z-index: 100;
}

/* Presentation Controls */
.presentation-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.5);
}

.control-btn {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: transparent;
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    cursor: pointer;
    transition: all 200ms;
}

.control-btn:hover {
    background: #FFFFFF;
    color: #000000;
}

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

.control-btn:disabled:hover {
    background: transparent;
    color: #FFFFFF;
}

.icon-btn {
    padding: 8px 12px;
    font-size: 18px;
}

.slide-counter {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #FFFFFF;
    opacity: 0.8;
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    margin-bottom: 32px;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: #FFFFFF;
    transition: width 300ms ease;
    width: 7.7%; /* 1/13 slides */
}

/* Slides */
.slides-wrapper {
    position: relative;
    width: 100%;
    height: 750px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: #000000;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(-100%);
    transition: all 400ms ease;
    padding: 40px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow-y: auto;
}

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

.slide.next {
    transform: translateX(100%);
}

.slide-content {
    max-width: 900px;
    width: 100%;
    text-align: center;
    padding-top: 40px;
}

.slide h2 {
    font-family: "Times New Roman", Times, serif;
    font-size: 48px;
    font-weight: normal;
    line-height: 56px;
    margin-bottom: 32px;
}

.slide-body {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 18px;
    line-height: 28px;
    opacity: 0.9;
}

/* Cover Slide */
.cover-slide {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.cover-logo {
    margin-bottom: 48px;
}

.cover-logo img {
    height: 64px;
}

.cover-title {
    font-family: "Times New Roman", Times, serif;
    font-size: 48px;
    font-weight: normal;
    line-height: 56px;
    margin-bottom: 24px;
}

.cover-subtitle {
    font-family: "Times New Roman", Times, serif;
    font-size: 24px;
    font-weight: normal;
    opacity: 0.8;
    margin-bottom: 64px;
}

.cover-footer {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    opacity: 0.5;
}

/* Problem List */
.problem-list {
    text-align: left;
    list-style: none;
    margin: 40px 0;
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 18px;
    line-height: 28px;
}

.problem-list li {
    margin-bottom: 16px;
    padding-left: 24px;
    position: relative;
}

.problem-list li:before {
    content: "→";
    position: absolute;
    left: 0;
    opacity: 0.5;
}

/* Flow Diagram */
.flow-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin: 48px 0;
}

.flow-box {
    padding: 24px 32px;
    border: 1px solid #FFFFFF;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.flow-arrow {
    font-size: 24px;
    opacity: 0.5;
}

.flow-sub {
    font-size: 10px;
    opacity: 0.6;
    display: block;
    margin-top: 4px;
}

/* Product Comparison */
.product-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-top: 32px;
    text-align: left;
}

.product-column h3 {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.product-column ul {
    list-style: none;
    margin-bottom: 24px;
}

.product-column li {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 14px;
    line-height: 20px;
    margin-bottom: 12px;
    opacity: 0.8;
}

.speed-info {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 14px;
    line-height: 20px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* Speed List */
.speed-list {
    text-align: left;
    list-style: none;
    margin: 40px 0;
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 18px;
    line-height: 28px;
}

.speed-list li {
    margin-bottom: 16px;
}

/* Chart Container */
.chart-container {
    margin: 24px auto;
    position: relative;
}

.chart-note {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 12px;
    opacity: 0.6;
    margin-top: 16px;
}

.chart-footnote {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 11px;
    opacity: 0.5;
    margin-top: 16px;
    font-style: italic;
}

.target-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #B10202;
    color: #FFFFFF;
    padding: 4px 12px;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Competition Table */
.competition-table {
    width: 100%;
    margin: 32px 0;
    border-collapse: collapse;
}

.competition-table th {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 16px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    text-align: left;
}

.competition-table td {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 14px;
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sub-text {
    display: block;
    font-size: 12px;
    opacity: 0.6;
    margin-top: 4px;
}

.our-edge {
    margin-top: 32px;
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 16px;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Ship Grid */
.ship-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin: 32px 0;
    text-align: left;
}

.ship-section h3 {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
    opacity: 0.9;
}

.ship-section ul {
    list-style: none;
}

.ship-section li {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 14px;
    line-height: 20px;
    margin-bottom: 8px;
    opacity: 0.8;
}

.code-snippet {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 20px;
    margin-top: 40px;
    font-family: monospace;
    font-size: 16px;
}

.code-label {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    opacity: 0.7;
    margin-bottom: 12px;
}

/* Founder Section */
.founder-section {
    margin: 24px 0;
}

.founder-section h3 {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 24px;
    opacity: 0.9;
}

.founder-credentials {
    display: grid;
    gap: 24px;
    margin-bottom: 40px;
}

.credential-block {
    text-align: left;
    padding: 16px;
    border-left: 2px solid rgba(255, 255, 255, 0.3);
}

.credential-block h4 {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 8px;
    opacity: 0.8;
}

.credential-block p {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 14px;
    line-height: 20px;
    opacity: 0.8;
}

/* Pricing Tiers */
.pricing-tiers {
    margin: 40px 0;
}

.tier {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 18px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    line-height: 28px;
}

/* Timeline */
.timeline-section {
    text-align: left;
    margin: 32px 0;
}

.timeline-section h3 {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 8px;
    opacity: 0.9;
}

.timeline-section p {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 16px;
    line-height: 24px;
    margin-bottom: 24px;
    opacity: 0.8;
}

/* Funding */
.funding-main {
    margin-bottom: 24px;
}

.funding-highlight {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 24px;
    line-height: 32px;
    margin-bottom: 16px;
}

.next-raise-container {
    margin-top: 40px;
}

.next-raise {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 16px;
    line-height: 24px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0.8;
    display: block;
}

/* Closing Slide */
.closing-slide {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.team-description {
    font-family: "Alliance No.2", "IBM Plex Sans", Inter, system-ui, sans-serif;
    font-size: 18px;
    margin-bottom: 48px;
    opacity: 0.9;
}

.cta-container {
    margin: 48px 0;
}

.closing-cta {
    font-family: "Times New Roman", Times, serif;
    font-size: 32px;
    line-height: 40px;
}

.contact-section {
    margin-top: 48px;
}

/* Fullscreen */
.presentation-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    max-width: 100%;
    padding: 0;
    z-index: 9999;
    background: #000000;
}

.presentation-container.fullscreen .slides-wrapper {
    height: calc(100vh - 100px);
}

.presentation-container.fullscreen .briefing-header {
    display: none;
}

.presentation-container.fullscreen .slide {
    padding: 20px;
}

.presentation-container.fullscreen .slide h2 {
    font-size: 42px;
    line-height: 48px;
    margin-bottom: 24px;
}

/* Responsive */
@media (max-width: 768px) {
    .slide h2 {
        font-size: 28px;
        line-height: 36px;
    }

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

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

    .product-comparison,
    .ship-grid {
        grid-template-columns: 1fr;
    }

    .slides-wrapper {
        height: 500px;
    }
}