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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #000;
    background: #fff;
    overflow-x: hidden;
}

.landing-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.landing-header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.landing-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.landing-header .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #000;
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

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

.nav-links a {
    color: #666;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: #000;
}

.hero {
    min-height: 100vh;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-content {
    text-align: center;
    color: #000;
    z-index: 1;
    padding: 2rem;
    max-width: 1000px;
}

.hero-content .logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0.9;
}

h1 {
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 900;
    margin-bottom: 2rem;
    line-height: 0.95;
    letter-spacing: -0.03em;
}

h1 .highlight {
    color: #666;
    font-style: italic;
}

.tagline {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 400;
    margin-bottom: 4rem;
    color: #666;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: #000;
    color: #fff;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border: 2px solid #000;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta-button:hover {
    background: transparent;
    color: #000;
}

.features {
    padding: 8rem 2rem;
    background: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    color: #000;
    letter-spacing: -0.02em;
}

.features-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 5rem;
    font-weight: 400;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: #fff;
    padding: 3rem;
    border: 2px solid #000;
    position: relative;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: -8px;
    bottom: -8px;
    background: #000;
    z-index: -1;
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 2rem;
    display: block;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #000;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: #444;
    line-height: 1.7;
    font-size: 1rem;
}

.metrics {
    padding: 8rem 2rem;
    background: #fff;
    color: #000;
}

.metrics h2 {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 5rem;
    letter-spacing: -0.02em;
    color: #000;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.metric-item {
    text-align: center;
    padding: 2rem;
    border: 2px solid #000;
    position: relative;
    background: #fff;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.metric-item::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: -8px;
    bottom: -8px;
    background: #000;
    z-index: -1;
}

.metric-value {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
    color: #000;
}


.metric-label {
    font-size: 1rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

.how-it-works {
    padding: 8rem 2rem;
    background: #fff;
}

.how-it-works h2 {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 5rem;
    color: #000;
    letter-spacing: -0.02em;
}

.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 4rem;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 30px;
    top: 60px;
    width: 1px;
    height: calc(100% + 2rem);
    background: #000;
    opacity: 0.2;
}

.step-number {
    width: 60px;
    height: 60px;
    background: #000;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    flex-shrink: 0;
    margin-right: 2.5rem;
}

.step-content h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 0.8rem;
    color: #000;
    letter-spacing: -0.01em;
}

.step-content p {
    color: #444;
    line-height: 1.7;
    font-size: 1rem;
}

.cta-section {
    padding: 8rem 2rem;
    background: #000;
    text-align: center;
    color: white;
}

.cta-section h2 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.cta-section p {
    font-size: 1.3rem;
    margin-bottom: 4rem;
    opacity: 0.8;
}

.cta-button-secondary {
    display: inline-block;
    background: white;
    color: #000;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border: 2px solid white;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta-button-secondary:hover {
    background: transparent;
    color: white;
}

.dora-standard {
    padding: 8rem 2rem;
    background: #000;
    color: white;
}

.dora-standard h2 {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.dora-subtitle {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.dora-source {
    text-align: center;
    font-size: 1rem;
    margin-bottom: 4rem;
    opacity: 0.6;
}

.dora-source a {
    color: white;
    text-decoration: underline;
    transition: opacity 0.2s ease;
}

.dora-source a:hover {
    opacity: 0.8;
}

.dora-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

.dora-text h3 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.dora-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.dora-stats h3 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 2rem;
    letter-spacing: -0.01em;
}

.stat-item {
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-description {
    font-size: 1rem;
    opacity: 0.7;
    line-height: 1.5;
}

.dashboard-preview {
    padding: 8rem 2rem;
    background: #f8f9fa;
}

.dashboard-preview h2 {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    color: #000;
}

.dashboard-subtitle {
    text-align: center;
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 4rem;
}

.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 3rem;
}

.key-metrics-section {
    margin-bottom: 3rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #000;
}

.metrics-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.metric-card-preview {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    border: 1px solid #e9ecef;
}

.metric-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.badge-primary {
    background: #e7f5ff;
    color: #339af0;
}

.badge-warning {
    background: #fff3cd;
    color: #f59f00;
}

.badge-success {
    background: #d3f9d8;
    color: #37b24d;
}

.metric-main-value {
    font-size: 2.5rem;
    font-weight: 900;
    color: #000;
    margin-bottom: 0.5rem;
}

.metric-percentage {
    font-size: 1rem;
    font-weight: 600;
}

.metric-percentage:before {
    content: '▲ ';
}

.metric-card-preview:nth-child(2) .metric-percentage {
    color: #37b24d;
}

.metric-card-preview:nth-child(2) .metric-percentage:before {
    content: '▼ ';
}

.metric-card-preview:nth-child(1) .metric-percentage,
.metric-card-preview:nth-child(3) .metric-percentage {
    color: #e03131;
}

.cycle-time-summary {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    border: 1px solid #e9ecef;
    margin-bottom: 3rem;
}

.summary-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 2rem;
}

.summary-label {
    color: #666;
    font-size: 1rem;
}

.summary-value {
    font-size: 2rem;
    font-weight: 800;
    color: #339af0;
}

.timeline-visualization {
    display: flex;
    gap: 1rem;
}

.timeline-stage {
    position: relative;
}

.timeline-bar {
    height: 6px;
    border-radius: 3px;
    margin-bottom: 1rem;
}

.timeline-label {
    text-align: center;
}

.stage-name {
    font-size: 0.875rem;
    color: #666;
    margin-bottom: 0.25rem;
}

.stage-time {
    font-size: 1.125rem;
    font-weight: 700;
    color: #000;
}

.charts-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.chart-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    border: 1px solid #e9ecef;
}

.chart-header {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.chart-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
}

.chart-value {
    font-size: 2rem;
    font-weight: 800;
    color: #000;
}

.chart-unit {
    font-size: 0.875rem;
    color: #666;
    font-weight: normal;
}

.chart-area {
    height: 200px;
    position: relative;
}

@media (max-width: 768px) {
    .step {
        flex-direction: column;
        text-align: center;
    }

    .step-number {
        margin-right: 0;
        margin-bottom: 1.5rem;
    }

    .step:not(:last-child)::after {
        display: none;
    }

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

    .dora-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .charts-section {
        grid-template-columns: 1fr;
    }

    .dashboard-container {
        padding: 1.5rem;
    }
}