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

:root {
    --primary-blue: #0071e3;
    --primary-green: #34c759;
    --primary-orange: #ff9500;
    --primary-red: #ff3b30;
    --gray-dark: #1d1d1f;
    --gray-medium: #555;
    --gray-light: #86868b;
    --gray-lighter: #a1a1a6;
    --gray-bg: #f5f5f7;
    --white: #ffffff;
    --border-color: #e5e5e7;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--white);
    color: var(--gray-dark);
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--white);
}

/* Header */
.app-header {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 20px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-dark);
}

.header-title {
    font-size: 14px;
    color: var(--gray-light);
    font-weight: 500;
}

/* Main Content */
.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.slide-counter {
    text-align: center;
    padding: 12px 0;
    font-size: 13px;
    color: var(--gray-light);
    background: var(--gray-bg);
}

/* Slide Container */
.slide-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    overflow-y: auto;
    display: none;
}

.slide.active {
    opacity: 1;
    display: block;
    position: relative;
}

.slide-content {
    padding: 24px 20px;
    height: 100%;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.slide-content h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-dark);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.slide-content h2 {
    font-size: 24px;
    font-weight: 400;
    color: var(--gray-light);
    margin-bottom: 20px;
}

.slide-content h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-dark);
    margin-bottom: 12px;
}

/* Slide 1 - Cover */
#slide-1 .slide-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-bg) 100%);
}

.slide-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.divider {
    width: 40px;
    height: 3px;
    background: var(--primary-blue);
    margin: 20px auto;
}

.subtitle {
    font-size: 16px;
    color: var(--gray-medium);
    margin-bottom: 12px;
}

.subtext {
    font-size: 13px;
    color: var(--gray-lighter);
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.kpi-card {
    background: var(--gray-bg);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.kpi-label {
    font-size: 12px;
    color: var(--gray-light);
    margin-bottom: 8px;
    font-weight: 500;
}

.kpi-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 4px;
}

.kpi-detail {
    font-size: 11px;
    color: var(--gray-lighter);
}

/* Highlights Box */
.highlights-box {
    background: var(--gray-bg);
    border-radius: 12px;
    padding: 16px;
    border-left: 4px solid var(--primary-blue);
}

.highlights-box h3 {
    margin-bottom: 12px;
    font-size: 14px;
}

.highlights-box ul {
    list-style: none;
    padding: 0;
}

.highlights-box li {
    font-size: 13px;
    color: var(--gray-medium);
    margin-bottom: 8px;
    line-height: 1.4;
}

/* Assumptions Grid */
.assumptions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.assumption-group {
    background: var(--gray-bg);
    border-radius: 12px;
    padding: 16px;
}

.assumption-group h3 {
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 10px;
    margin-bottom: 12px;
    font-size: 14px;
}

.assumption-item {
    margin-bottom: 12px;
}

.assumption-label {
    font-size: 12px;
    color: var(--gray-light);
    margin-bottom: 4px;
    font-weight: 500;
}

.assumption-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-dark);
}

/* Chart Container */
.chart-container {
    width: 100%;
    height: 200px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.revenue-chart {
    width: 100%;
    height: 100%;
}

/* Quarterly Results */
.quarterly-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.quarterly-item {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
}

.quarterly-item.highlight {
    background: var(--primary-green);
    color: var(--white);
}

.quarterly-label {
    font-size: 11px;
    color: var(--gray-light);
    margin-bottom: 6px;
    font-weight: 500;
}

.quarterly-item.highlight .quarterly-label {
    color: rgba(255, 255, 255, 0.8);
}

.quarterly-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-dark);
}

.quarterly-item.highlight .quarterly-value {
    color: var(--white);
}

/* Cost Breakdown */
.cost-breakdown {
    margin-bottom: 20px;
}

.cost-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--gray-bg);
    border-radius: 10px;
    margin-bottom: 10px;
}

.cost-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    flex-shrink: 0;
}

.cost-info {
    flex: 1;
}

.cost-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-dark);
    margin-bottom: 2px;
}

.cost-percentage {
    font-size: 12px;
    color: var(--gray-light);
}

.cost-amount {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-dark);
}

.total-costs {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
    font-size: 13px;
    color: var(--gray-medium);
}

/* Profitability Metrics */
.profitability-metrics {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.metric-card {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 14px;
    text-align: center;
}

.metric-label {
    font-size: 12px;
    color: var(--gray-light);
    margin-bottom: 6px;
    font-weight: 500;
}

.metric-value {
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: 4px;
}

.metric-detail {
    font-size: 11px;
    color: var(--gray-lighter);
}

/* Progress Indicator */
.progress-indicator {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 14px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: var(--primary-green);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 12px;
    color: var(--gray-light);
    text-align: center;
}

/* KPI Detailed */
.kpi-detailed {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.kpi-detail-card {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
}

.kpi-detail-label {
    font-size: 12px;
    color: var(--gray-light);
    margin-bottom: 6px;
    font-weight: 500;
}

.kpi-detail-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-dark);
    margin-bottom: 4px;
}

.kpi-detail-change {
    font-size: 12px;
    color: var(--primary-green);
    font-weight: 600;
}

/* Strategic Metrics */
.strategic-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
}

.strategic-item {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
}

.strategic-label {
    font-size: 11px;
    color: var(--gray-light);
    margin-bottom: 6px;
    font-weight: 500;
}

.strategic-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-blue);
}

/* Strategy Section */
.strategy-section {
    margin-bottom: 20px;
}

.strategy-section h3 {
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 10px;
    margin-bottom: 12px;
    font-size: 14px;
}

.strategy-items {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.strategy-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: var(--gray-bg);
    border-radius: 10px;
}

.strategy-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.strategy-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-dark);
    margin-bottom: 2px;
}

.strategy-desc {
    font-size: 12px;
    color: var(--gray-light);
}

/* Risk & Opportunity */
.risk-opportunity-section {
    margin-bottom: 20px;
}

.risk-opportunity-section h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--gray-dark);
}

.risk-item,
.opportunity-item {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 10px;
    border-left: 4px solid var(--primary-red);
}

.opportunity-item {
    border-left-color: var(--primary-green);
}

.risk-header,
.opportunity-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.risk-title,
.opportunity-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-dark);
    margin: 0;
}

.risk-badge,
.opportunity-badge {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 600;
    color: var(--white);
}

.risk-badge.high,
.opportunity-badge.high {
    background: var(--primary-red);
}

.risk-badge.medium,
.opportunity-badge.medium {
    background: var(--primary-orange);
}

.risk-desc,
.opportunity-desc {
    font-size: 12px;
    color: var(--gray-light);
    margin-bottom: 6px;
}

.risk-mitigation {
    font-size: 11px;
    color: var(--gray-medium);
}

/* Conclusion */
.conclusion-subtitle {
    font-size: 16px;
    color: var(--gray-medium);
    margin-bottom: 20px;
    line-height: 1.5;
}

.conclusion-metrics {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.conclusion-card {
    background: var(--white);
    border-radius: 10px;
    padding: 14px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.conclusion-label {
    font-size: 12px;
    color: var(--gray-light);
    margin-bottom: 6px;
    font-weight: 500;
}

.conclusion-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 4px;
}

.conclusion-detail {
    font-size: 11px;
    color: var(--gray-lighter);
}

/* Commitment Box */
.commitment-box {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 14px;
    border-left: 4px solid var(--primary-blue);
    margin-bottom: 20px;
}

.commitment-box h3 {
    margin-bottom: 8px;
    font-size: 14px;
}

.commitment-box p {
    font-size: 13px;
    color: var(--gray-medium);
    line-height: 1.5;
    margin: 0;
}

/* Contact Info */
.contact-info {
    background: var(--gray-bg);
    border-radius: 10px;
    padding: 14px;
}

.contact-label {
    font-size: 12px;
    color: var(--gray-light);
    margin-bottom: 12px;
    font-weight: 500;
    text-align: center;
}

.contact-details {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.contact-item {
    text-align: center;
}

.contact-type {
    font-size: 11px;
    color: var(--gray-light);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-dark);
    margin: 0;
}

/* Navigation */
.slide-navigation {
    display: flex;
    gap: 10px;
    padding: 12px 20px;
    background: var(--gray-bg);
    border-top: 1px solid var(--border-color);
}

.nav-btn {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--white);
    color: var(--gray-dark);
    border: 1px solid var(--border-color);
}

.nav-btn:active {
    background: var(--border-color);
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Slide Indicators */
.slide-indicators {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 12px 20px;
    background: var(--white);
    border-top: 1px solid var(--border-color);
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.indicator.active {
    background: var(--primary-blue);
    width: 24px;
    border-radius: 4px;
}

/* Footer */
.app-footer {
    background: var(--white);
    border-top: 1px solid var(--border-color);
    padding: 12px 20px;
    text-align: center;
    font-size: 11px;
    color: var(--gray-lighter);
}

/* Scrollbar Styling */
.slide-content::-webkit-scrollbar {
    width: 4px;
}

.slide-content::-webkit-scrollbar-track {
    background: transparent;
}

.slide-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.slide-content::-webkit-scrollbar-thumb:hover {
    background: var(--gray-light);
}

/* Responsive */
@media (max-width: 480px) {
    .slide-content {
        padding: 16px 16px;
    }

    .slide-content h1 {
        font-size: 24px;
    }

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

    .quarterly-results {
        grid-template-columns: 1fr;
    }

    .kpi-detailed {
        grid-template-columns: 1fr;
    }

    .strategic-metrics {
        grid-template-columns: 1fr;
    }

    .contact-details {
        grid-template-columns: 1fr;
    }
}