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

:root {
    --primary-color: #0b63f6;
    --text-primary: #0b1220;
    --text-secondary: #4b5563;
    --background: #f9fafb;
    --border-color: #e5e7eb;
    --card-shadow: 0 20px 50px rgba(15, 23, 42, 0.06);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background: var(--background);
    line-height: 1.65;
    letter-spacing: -0.01em;
}

section {
    position: relative;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 32px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    box-shadow: none;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 32px;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    height: 56px;
    width: 56px;
    object-fit: cover;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 28px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Buttons */
.btn-primary {
    display: inline-block;
    padding: 12px 26px;
    background: var(--primary-color);
    color: white;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(11, 99, 246, 0.18);
}

.btn-primary:hover {
    background: #0a57d6;
    transform: translateY(-1px);
    box-shadow: 0 12px 26px rgba(11, 99, 246, 0.22);
}

.btn-large {
    padding: 16px 34px;
    font-size: 15px;
}

.btn-secondary {
    background: white;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 999px;
}

.btn-secondary:hover {
    background: #f3f4f6;
    color: var(--text-primary);
    border-color: #d1d5db;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #0b1220;
    margin-top: 72px;
}

#hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, rgba(11, 18, 32, 0.82), rgba(11, 18, 32, 0.45));
    z-index: 2;
}

.hero .container {
    position: relative;
    z-index: 10;
}

.hero-content {
    max-width: 620px;
    animation: fadeInUp 0.8s ease;
}

.hero-content p {
    max-width: 560px;
}

.hero-title {
    font-size: 56px;
    font-weight: 600;
    line-height: 1.08;
    margin-bottom: 24px;
    color: #ffffff;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    line-height: 1.6;
    font-weight: 400;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Features Section */
.features {
    padding: 120px 0 140px;
    background: var(--background);
}

.features h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 72px;
    text-align: center;
    letter-spacing: -0.02em;
}

.feature-blocks {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    align-items: stretch;
    grid-auto-rows: 1fr;
}

.feature-block {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 4px rgba(0,0,0,0.04), 0 8px 28px rgba(15,23,42,0.07);
    overflow: hidden;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.feature-block:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 20px 48px rgba(15,23,42,0.12);
    transform: translateY(-3px);
}

.feature-block:nth-child(even) .feature-text {
    order: initial;
}

.feature-block:nth-child(even) .feature-viz {
    order: initial;
}

.feature-text {
    padding: 24px 28px 32px;
    border-top: 1px solid var(--border-color);
    flex: 1;
}

.feature-text h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}



.feature-title-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.feature-title-row h3 {
    margin-bottom: 0;
}

.format-badges {
    display: flex;
    gap: 6px;
    align-items: center;
}

.app-icon {
    display: block;
}

.feature-text p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.feature-viz {
    width: 100%;
    height: 280px;
    max-height: 280px;
    background: #f8fafc;
    display: block;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-viz.viz-ready {
    opacity: 1;
}


/* How It Works Section */
.how-it-works {
    padding: 120px 0;
    background: #ffffff;
}

.how-it-works h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 60px;
    text-align: center;
    letter-spacing: -0.02em;
}

.steps-grid {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.step-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas: "viz text";
    align-items: center;
    gap: 48px;
}

.step-row.reverse {
    grid-template-areas: "text viz";
}

.step-viz-wrap {
    grid-area: viz;
    display: flex;
    justify-content: center;
}

.step-text {
    grid-area: text;
}

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

.step-text p {
    color: var(--muted-text);
    font-size: 16px;
    line-height: 1.6;
}

.step-viz {
    width: 100%;
    max-width: 500px;
    height: 280px;
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    overflow: hidden;
    display: block;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.step-viz.viz-ready {
    opacity: 1;
}

/* Collaboration Section */
.collaboration {
    padding: 120px 0;
    background: #ffffff;
}

.collaboration h2 {
    font-size: 34px;
    font-weight: 600;
    margin-bottom: 28px;
}

.collab-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.collab-text p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

/* Reporting Section */
.reporting {
    padding: 120px 0;
    background: var(--background);
}

.reporting h2 {
    font-size: 34px;
    font-weight: 600;
    margin-bottom: 28px;
}

.report-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.report-text p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

/* Bulk Operations Section */
.bulk-ops {
    padding: 120px 0;
    background: #ffffff;
}

.bulk-ops h2 {
    font-size: 34px;
    font-weight: 600;
    margin-bottom: 28px;
}

.bulk-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.bulk-text p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

/* Fast Section */
.fast {
    padding: 120px 0;
    background: var(--background);
}

.fast h2 {
    font-size: 34px;
    font-weight: 600;
    margin-bottom: 28px;
}

.fast-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.fast-text p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

/* Video Section */
.video-section {
    padding: 120px 0;
    background: #ffffff;
}

.video-section h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 40px;
    text-align: center;
}

.video-placeholder {
    max-width: 860px;
    margin: 0 auto;
    aspect-ratio: 16 / 9;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease;
    box-shadow: var(--card-shadow);
}

.video-placeholder:hover {
    transform: translateY(-2px);
}

.play-icon {
    font-size: 64px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.video-placeholder p {
    color: var(--text-secondary);
    font-size: 18px;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: #0b1220;
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 18px;
}

.cta p {
    font-size: 17px;
    margin-bottom: 36px;
    opacity: 0.85;
}

/* Footer */
.footer {
    background: #0f172a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-section h4 {
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-bottom: 10px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .feature-blocks {
        grid-template-columns: 1fr;
    }

    .feature-block {
        flex-direction: column;
    }

    .feature-block:nth-child(even) .feature-text,
    .feature-block:nth-child(even) .feature-viz {
        order: unset;
    }

    .steps-grid {
        gap: 40px;
    }

    .step-row,
    .step-row.reverse {
        grid-template-columns: 1fr;
        grid-template-areas:
            "viz"
            "text";
        text-align: center;
    }

    .collab-content,
    .report-content,
    .bulk-content,
    .fast-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .nav-links {
        gap: 20px;
    }
}