/* ===========================
   GLOBAL RESET & BASE STYLES
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Industrial color palette */
    --primary-dark: #0f172a;
    --primary-blue: #2563eb;
    --secondary-blue: #1e40af;
    --accent-orange: #f97316;
    --accent-yellow: #fbbf24;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    --gradient-accent: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.9) 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===========================
   HERO SECTION
   =========================== */
.hero {
    position: relative;
    background: var(--gradient-hero);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(249, 115, 22, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}

.brand-name {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tagline {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: #cbd5e1;
    letter-spacing: -0.01em;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: #94a3b8;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--bg-white);
    color: var(--primary-dark);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--bg-white);
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* ===========================
   VALUE PROPOSITION
   =========================== */
.value-prop {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===========================
   DIFFERENTIATION SECTION
   =========================== */
.differentiation {
    padding: var(--spacing-xl) 0;
    background: var(--bg-white);
}

.diff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.diff-card {
    background: var(--gradient-card);
    padding: var(--spacing-md);
    border-radius: 16px;
    border-left: 4px solid var(--primary-blue);
    transition: all 0.3s ease;
}

.diff-card:hover {
    transform: translateX(8px);
    border-left-color: var(--accent-orange);
}

.diff-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
    opacity: 0.3;
}

.diff-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.diff-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===========================
   SCREENSHOTS SECTION
   =========================== */
.screenshots {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.screenshot-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all 0.3s ease;
}

.screenshot-item:hover {
    transform: translateY(-8px);
}

.screenshot-item img {
    width: 100%;
    max-width: 350px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.screenshot-item:hover img {
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

.screenshot-caption {
    margin-top: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
}

/* ===========================
   AUDIENCE SECTION
   =========================== */
.audience {
    padding: var(--spacing-xl) 0;
    background: var(--bg-white);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.audience-card {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.audience-card:hover {
    background: var(--gradient-accent);
    color: white;
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.2);
}

.audience-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.audience-card p {
    font-size: 1rem;
    opacity: 0.9;
}

.audience-tagline {
    text-align: center;
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-primary);
    font-style: italic;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    background: var(--primary-dark);
    color: #cbd5e1;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-xs);
}

.footer-brand p {
    color: #94a3b8;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    display: block;
    color: #94a3b8;
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-blue);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: #64748b;
}

/* ===========================
   ANIMATIONS
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* ===========================
   RESPONSIVE DESIGN
   =========================== */
@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }

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

    .screenshot-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
}