:root {
    /* Refined Color Palette - Deeper & Richer */
    --primary-blue: #0A66C2;
    /* LinkedIn/Enterprise Blue */
    --primary-dark: #004182;
    --primary-light: #E8F3FF;
    --accent-blue: #0073E6;

    --text-main: #1D2226;
    --text-sec: #5E6D7E;
    /* Cool Grey */
    --text-placeholder: #8C98A4;

    --bg-body: #F8F9FA;
    --bg-white: #FFFFFF;
    --bg-glass: rgba(255, 255, 255, 0.85);

    --border-light: #ECEEF0;
    --border-glass: rgba(255, 255, 255, 0.6);

    --success-green: #057642;

    /* Spacing & Layout */
    --container-width: 1240px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;

    /* Shadows - Layered for Depth */
    --shadow-subtle: 0 2px 6px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.06);
    --shadow-float: 0 20px 48px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 16px rgba(10, 102, 194, 0.15);

    /* Animation */
    --ease-out: cubic-bezier(0.215, 0.61, 0.355, 1);
    --duration: 0.4s;
}

/* Reset & Base */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-body);
    background-image: url('../images/grid-pattern.svg');
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    color: var(--text-main);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.25;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
}

h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
}

h3 {
    font-size: 1.5rem;
}

p {
    color: var(--text-sec);
    font-size: 1.0625rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--duration) var(--ease-out);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
    padding: 0;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

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

/* Buttons - Modern & Tactile */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-weight: 600;
    border-radius: 50px;
    /* Pill shape */
    transition: all var(--duration) var(--ease-out);
    font-size: 1rem;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(10, 102, 194, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(10, 102, 194, 0.35);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary-blue);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-subtle);
}

.btn-secondary:hover {
    border-color: var(--primary-blue);
    background: var(--primary-light);
    transform: translateY(-2px);
}

.btn-outline {
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: white;
}

/* Navbar - Glassmorphism */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 16px 0;
    transition: padding var(--duration) ease;
}

.navbar.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow-subtle);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-dark);
    letter-spacing: -0.05em;
    background: linear-gradient(90deg, var(--primary-dark), var(--primary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a:not(.btn) {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-sec);
}

.nav-links a:not(.btn):hover {
    color: var(--primary-blue);
}

.mobile-menu-btn {
    display: none;
}

/* Hero Section - Immersive */
.hero {
    padding: 160px 0 100px;
    background: radial-gradient(circle at 50% 50%, rgba(232, 243, 255, 0.5) 0%, rgba(255, 255, 255, 0) 70%);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    margin-bottom: 24px;
    color: var(--text-main);
}

.hero-text p {
    font-size: 1.25rem;
    margin-bottom: 32px;
    color: var(--text-sec);
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.hero-visual {
    position: relative;
}

.hero-img {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-float);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.6s var(--ease-out);
    border: 4px solid var(--bg-white);
}

.hero-img:hover {
    transform: perspective(1000px) rotateY(0) rotateX(0);
}

/* Trust Strip */
.trust-strip {
    background: var(--bg-white);
    padding: 30px 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.trust-items {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    color: var(--text-sec);
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

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

.trust-item::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--success-green);
    border-radius: 50%;
}

.trust-partner {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-sec);
    font-weight: 500;
}

.partner-logo-sm {
    height: 28px;
    opacity: 0.6;
    filter: grayscale(100%);
    transition: var(--duration);
}

.partner-logo-sm:hover {
    opacity: 1;
    filter: grayscale(0);
}


/* Section Header */
.section-header h2 {
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-header p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
}


/* Feature Cards - Glass & Glow */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
    transition: all var(--duration) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-float);
    border-color: var(--primary-light);
}

.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: inline-block;
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.35rem;
}

/* Real-Life Simulation (Differentiators) */
.bg-light-blue {
    background-color: rgba(232, 243, 255, 0.4);
}

.diff-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 40px auto 0;
}

.diff-item {
    background: var(--bg-white);
    padding: 24px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    box-shadow: var(--shadow-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--duration);
}

.diff-item:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-card);
}

.diff-item h3 {
    font-size: 1.15rem;
    color: var(--primary-dark);
    margin-bottom: 8px;
}


/* How It Works - Steps */
.steps-container {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 40px;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 50px;
    right: 50px;
    height: 2px;
    background: var(--border-light);
    z-index: 0;
}

.step {
    position: relative;
    z-index: 1;
    background: var(--bg-body);
    padding: 0 10px;
    flex: 1;
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--bg-white);
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    font-size: 1.5rem;
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: var(--shadow-glow);
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}


/* User Segments */
.bg-dark {
    background: #0F172A;
    background-image: radial-gradient(circle at 100% 0%, #1E293B 0%, #0F172A 50%);
    color: white;
}

.user-segments-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.segment-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px;
    border-radius: var(--radius-sm);
    backdrop-filter: blur(4px);
    transition: var(--duration);
}

.segment-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.3);
}

.segment-card h3 {
    color: white;
    font-size: 1.1rem;
}

.segment-card p {
    font-size: 0.9rem;
    color: #94A3B8;
}


/* Institutional Control */
.control-block {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-card);
}

.control-bullets {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
}

.control-bullets span {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 10px 20px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid rgba(10, 102, 194, 0.1);
}

/* Partnership */
.content-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.partnership-visual {
    background: white;
    border-radius: var(--radius-md);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
}

.partner-logo-lg {
    height: 50px;
    margin-bottom: 20px;
}


/* Pricing */
.pricing-split {
    display: flex;
    gap: 32px;
    justify-content: center;
}

.pricing-card {
    flex: 1;
    max-width: 450px;
    background: white;
    padding: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
}

.pricing-card.b2b::before {
    background: var(--primary-dark);
}

.pricing-card.b2c::before {
    background: var(--success-green);
}

.pricing-card ul {
    margin: 24px 0;
}

.pricing-card li {
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
}

.pricing-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: bold;
}


/* CTA */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #001E3C 100%);
    color: white;
    text-align: center;
    padding: 80px 0;
}

.cta-section h2 {
    color: white;
    margin-bottom: 30px;
}


/* Footer */
.footer {
    background: white;
    padding: 60px 0 20px;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-light);
}

.footer-brand p {
    font-size: 0.9rem;
    margin-top: 8px;
}

.compliance-text {
    color: var(--text-placeholder);
    font-size: 0.8rem;
    font-style: italic;
}

.footer-bottom {
    margin-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-sec);
}


/* Animations */
.fade-in,
.fade-in-up,
.fade-in-left,
.fade-in-right {
    opacity: 0;
    transition: all 0.8s var(--ease-out);
}

.fade-in-up {
    transform: translateY(40px);
}

.fade-in-left {
    transform: translateX(-40px);
}

.fade-in-right {
    transform: translateX(40px);
}

.visible {
    opacity: 1;
    transform: none;
}

.delay-100 {
    transition-delay: 0.1s;
}

.delay-200 {
    transition-delay: 0.2s;
}

.delay-300 {
    transition-delay: 0.3s;
}

/* Responsive */
@media (max-width: 900px) {
    .container {
        padding: 0 16px;
    }

    h1 {
        font-size: 2.5rem;
    }

    .hero-content,
    .content-split,
    .pricing-split {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .hero-text {
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .steps-container {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }

    .steps-container::before {
        display: none;
    }

    .user-segments-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
        border: none;
        background: none;
        font-size: 1.5rem;
        color: var(--primary-dark);
    }
}