@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&family=Open+Sans:wght@300;400;600;700&display=swap');

:root {
    /* Mandatory Color Palette */
    --primary-color: #000000;
    --secondary-color: #4CAF50;
    
    /* Theme Mode */
    --bg-color: #000000;
    --text-color: #e5e5e5;
    
    /* Layout & UI Variables */
    --surface-color: #0a0a0a;
    --surface-color-hover: #111111;
    --border-color: #1f1f1f;
    --text-muted: #a3a3a3;
    --font-main: 'Montserrat', 'Open Sans', sans-serif;
    --transition-speed: 0.3s;
    --border-radius: 16px;
    --bento-gap: 1.5rem;
}

/* Base Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* Subtle fine grain texture for depth */
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");
    background-attachment: fixed;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: #ffffff;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1.25rem;
    color: var(--text-muted);
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color var(--transition-speed) ease, text-shadow var(--transition-speed) ease;
}

a:hover {
    color: #5fda63;
    text-shadow: 0 0 8px rgba(76, 175, 80, 0.4);
}

/* Layout & Bento Grid */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(200px, auto);
    gap: var(--bento-gap);
    margin-top: 3rem;
}

.bento-item {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    transition: transform var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1), 
                box-shadow var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1), 
                border-color var(--transition-speed) ease,
                background-color var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.bento-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--secondary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-speed) ease;
}

.bento-item:hover {
    transform: translateY(-4px);
    background-color: var(--surface-color-hover);
    border-color: rgba(76, 175, 80, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.bento-item:hover::before {
    transform: scaleX(1);
}

/* Bento Sizing Classes */
.bento-full { grid-column: span 12; }
.bento-large { grid-column: span 8; }
.bento-medium { grid-column: span 6; }
.bento-small { grid-column: span 4; }

/* Interactive Elements & Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    font-family: var(--font-main);
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    box-shadow: 0 4px 14px rgba(76, 175, 80, 0.2);
}

.btn-primary:hover {
    background-color: #55c25a;
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

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

.btn-secondary:hover {
    background-color: rgba(76, 175, 80, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(76, 175, 80, 0.15);
}

/* Badges & Tags for "Exclusivity" & "Verified" */
.badge {
    display: inline-flex;
    align-items: center;
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--secondary-color);
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid rgba(76, 175, 80, 0.25);
    margin-bottom: 1.25rem;
    width: max-content;
}

/* Feature Lists */
.feature-list {
    list-style: none;
    margin-top: 1.5rem;
}

.feature-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
    font-weight: 500;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: -1px;
    color: var(--primary-color);
    background-color: var(--secondary-color);
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 800;
}

/* Header & Navigation */
header {
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo .accent {
    color: var(--secondary-color);
}

/* ROI & Metric Highlights */
.metric-highlight {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--secondary-color);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 2rem;
    text-align: center;
    margin-top: 4rem;
    background-color: var(--primary-color);
}

footer p {
    font-size: 0.875rem;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .bento-large { grid-column: span 12; }
    .bento-small { grid-column: span 6; }
}

@media (max-width: 768px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.75rem; }
    
    .bento-grid {
        gap: 1rem;
    }
    
    .bento-medium, .bento-small {
        grid-column: span 12;
    }
    
    .bento-item {
        padding: 1.5rem;
    }
}