/* --- ROOT VARIABLES & BASIC RESET --- */
:root {
    --color-background: #121212;
    --color-surface: #1E1E1E;
    --color-primary-start: #8A2BE2; /* BlueViolet */
    --color-primary-end: #FF1493; /* DeepPink */
    --color-accent: #ADFF2F; /* LimeGreen */
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #EAEAEA;
    --color-border: rgba(255, 255, 255, 0.15);

    --font-heading: 'Clash Display', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 80px;

    --border-radius: 16px;
}

/* Base styles and resets */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background-color: var(--color-background);
    color: var(--color-text-secondary);
    font-family: var(--font-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-lg); }
a { text-decoration: none; color: var(--color-accent); transition: color 0.3s ease; }
a:hover { color: var(--color-text-primary); }

/* --- TYPOGRAPHY & GRADIENT TEXT --- */
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; color: var(--color-text-primary); line-height: 1.2; }
h1 { font-size: clamp(2.8rem, 10vw, 5.5rem); margin-bottom: var(--spacing-md); }
h2 { font-size: clamp(2rem, 8vw, 3.5rem); }
h3 { font-size: 1.5rem; }
.gradient-text {
    background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.section-padding { padding: var(--spacing-xl) 0; }
.section-title { text-align: center; margin-bottom: var(--spacing-lg); }
.section-subtitle { text-align: center; max-width: 700px; margin: calc(-1 * var(--spacing-lg) + 16px) auto var(--spacing-xl); font-size: 1.1rem; color: #aaa; }

/* --- BUTTONS --- */
.btn { display: inline-block; padding: 14px 28px; border-radius: 50px; font-weight: 700; font-family: var(--font-heading); cursor: pointer; transition: transform 0.3s ease, box-shadow 0.3s ease; border: 2px solid transparent; text-decoration: none; text-align: center; }
.btn-primary { background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end)); color: var(--color-text-primary); }
.btn-primary:hover { transform: scale(1.05); box-shadow: 0 0 35px rgba(255, 20, 147, 0.5); }
.btn-secondary { background-color: var(--color-accent); color: var(--color-background); }
.btn-secondary:hover { transform: scale(1.05); box-shadow: 0 0 35px rgba(173, 255, 47, 0.4); }
.btn-tertiary { background-color: transparent; color: var(--color-text-primary); border-color: var(--color-border); }
.btn-tertiary:hover { background-color: var(--color-text-primary); color: var(--color-background); }
.btn-large { font-size: 1.2rem; padding: 18px 40px; }

/* --- HEADER & NAVIGATION --- */
.main-header { padding: var(--spacing-md) 0; position: sticky; top: 0; z-index: 1000; background: rgba(18, 18, 18, 0.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); }
.main-header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 12px; font-size: 1.6rem; color: var(--color-text-primary); font-family: var(--font-heading); font-weight: 700; }
.logo img { height: 40px; }
.menu-toggle { display: flex; flex-direction: column; justify-content: space-between; height: 20px; width: 30px; background: none; border: none; cursor: pointer; z-index: 1100; }
.menu-toggle span { display: block; width: 100%; height: 3px; background-color: var(--color-text-primary); border-radius: 2px; transition: all 0.3s ease; }
.menu-toggle.active span:nth-child(1) { transform: translateY(8.5px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-8.5px) rotate(-45deg); }
.main-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--color-background); padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
}
.main-nav.show-mobile-nav { display: block; }
.main-nav ul { list-style: none; display: flex; flex-direction: column; align-items: center; gap: var(--spacing-lg); }
.main-nav a { position: relative; color: var(--color-text-secondary); font-weight: 500; font-family: var(--font-body); }
.main-nav a::after { content: ''; position: absolute; width: 0; height: 2px; bottom: -5px; left: 50%; transform: translateX(-50%); background-color: var(--color-accent); transition: width 0.3s ease; }
.main-nav a:hover::after { width: 100%; }
.main-nav li { width: 100%; text-align: center;}
.main-nav .btn { padding: 10px 24px; font-size: 0.9rem; }
.main-nav .btn:hover::after { width: 0; }

/* --- HERO & ON-LOAD ANIMATIONS --- */
@keyframes subtle-zoom-in { from { transform: scale(1.1); } to { transform: scale(1); } }
@keyframes fade-in-up { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes stagger-fade-in { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.animate-on-load { animation: fade-in-up 0.8s backwards; animation-delay: var(--stagger-delay, 0s); }
.animate-on-load[data-animation="stagger-fade-in"] > span { display: inline-block; opacity: 0; animation: stagger-fade-in 0.6s forwards; animation-delay: var(--stagger-delay); }
.hero-section { text-align: center; padding: var(--spacing-xl) 0; min-height: 70vh; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.hero-section::before { content: ''; position: absolute; top: 0; left: 0; width: 200%; height: 200%; z-index: -1; background: radial-gradient(circle at 20% 30%, var(--color-primary-start), transparent 40%), radial-gradient(circle at 80% 70%, var(--color-primary-end), transparent 40%); opacity: 0.15; animation: funkyDrift 20s linear infinite alternate, subtle-zoom-in 1.5s backwards; }
@keyframes funkyDrift { from { transform: translate(-25%, -25%) rotate(0deg); } to { transform: translate(0%, 0%) rotate(360deg); } }
.hero-content p { font-size: 1.2rem; margin: var(--spacing-lg) 0; color: #ccc; max-width: 650px; margin-left: auto; margin-right: auto; }
.hero-ctas { display: flex; justify-content: center; gap: var(--spacing-md); flex-wrap: wrap; }

/* --- BENTO & PILLARS CARDS (TYPOGRAPHY-DRIVEN) --- */
.bento-grid, .pillars-grid { display: grid; gap: var(--spacing-md); }
.bento-grid { grid-template-columns: 1fr; }
.bento-card, .pillar-card { background: rgba(255, 255, 255, 0.05); border: 1px solid var(--color-border); border-radius: var(--border-radius); padding: var(--spacing-lg); backdrop-filter: blur(5px); transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.4s ease; }
.bento-card:hover, .pillar-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.2); }
.bento-card { display: flex; flex-direction: column; justify-content: center; }
.bento-number {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}
.pillars-grid { grid-template-columns: 1fr; }
.pillar-card { position: relative; text-align: center; padding-top: calc(var(--spacing-lg) + 10px); display: flex; flex-direction: column; justify-content: center; align-items: center;}
.pillar-card::before {
    content: '';
    position: absolute;
    top: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 4px;
    background-color: var(--color-accent);
    border-radius: 2px;
}
.pillar-card h3 { margin-bottom: var(--spacing-sm); }


/* --- ON-SCROLL ANIMATIONS --- */
.animate-on-scroll { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; transition-delay: var(--stagger-delay, 0s); }
.animate-on-scroll.is-visible { opacity: 1; transform: translateY(0); }

/* --- ECOSYSTEM, CTA, FOOTER (Mobile First) --- */
.ecosystem-section { background-color: var(--color-background); }
.ecosystem-card { display: grid; grid-template-columns: 1fr; align-items: center; text-align: center; gap: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.ecosystem-card.card-reverse .ecosystem-image { grid-row: 1; }
.ecosystem-image img { max-width: 90%; margin: 0 auto; border-radius: var(--border-radius); }
.ecosystem-content h3 { font-size: clamp(2rem, 8vw, 2.5rem); margin-bottom: var(--spacing-sm); }
.ecosystem-content p { color: #ccc; margin-bottom: var(--spacing-lg); }
.cta-section { text-align: center; background: var(--color-surface); padding: var(--spacing-xl) var(--spacing-md); }
.cta-section p { font-size: 1.2rem; color: var(--color-text-secondary); margin: var(--spacing-md) 0 var(--spacing-lg); }
.main-footer { background-color: var(--color-surface); padding: var(--spacing-xl) 0 var(--spacing-lg); }
.footer-content { display: grid; grid-template-columns: 1fr; text-align: center; gap: var(--spacing-xl); margin-bottom: var(--spacing-xl); }
.footer-brand .tagline { margin: var(--spacing-sm) 0 var(--spacing-lg); color: var(--color-text-secondary); font-style: italic; }
.footer-contact h4, .footer-links h4, .footer-social h4 { color: var(--color-text-primary); margin-bottom: var(--spacing-md); font-family: var(--font-heading); }
.footer-contact a { font-weight: 600; font-size: 1.1rem; }
.footer-links ul, .footer-social ul { list-style: none; }
.footer-links a { color: var(--color-text-secondary); display: block; padding: 5px 0; }
.footer-links a:hover { color: var(--color-accent); }
.footer-social ul { display: flex; justify-content: center; gap: var(--spacing-lg); }
.footer-social a svg { height: 26px; width: 26px; fill: var(--color-text-secondary); transition: fill 0.3s ease, transform 0.3s ease; }
.footer-social a:hover svg { fill: var(--color-text-primary); transform: scale(1.15) rotate(-5deg); }
.footer-bottom { text-align: center; padding-top: var(--spacing-lg); border-top: 1px solid var(--color-border); color: #888; font-size: 0.9rem;}
.error-page-section { display: flex; align-items: center; justify-content: center; text-align: center; min-height: 60vh; padding: var(--spacing-lg) 0; }
.error-content h1 { font-size: clamp(8rem, 25vw, 16rem); line-height: 1; margin-bottom: 0; }
.error-content h2 { font-size: clamp(1.5rem, 5vw, 2.5rem); margin-top: var(--spacing-sm); margin-bottom: var(--spacing-md); }
.error-content p { max-width: 500px; margin-left: auto; margin-right: auto; margin-bottom: var(--spacing-lg); color: #aab; }
.error-content .btn { margin-top: var(--spacing-md); }


/* --- RESPONSIVENESS --- */
@media (min-width: 768px) {
    .container { padding: 0 var(--spacing-md); }
    .section-title { margin-bottom: var(--spacing-xl); }
    .bento-grid { grid-template-columns: 1fr 1fr; }
    .bento-card.card-large { grid-column: span 2; }
    .pillars-grid { grid-template-columns: 1fr 1fr; }
    .ecosystem-card { grid-template-columns: 1fr 1fr; text-align: left;}
    .ecosystem-card.card-reverse .ecosystem-image { grid-row: auto; }
    .ecosystem-image img { max-width: 100%; }
    .footer-content { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: span 2; }
}

@media (min-width: 1024px) {
    .menu-toggle { display: none; }
    
    .main-nav {
        display: flex;
        position: static;
        width: auto;
        background: none;
        padding: 0;
        border: none;
    }
    .main-nav ul {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-lg);
    }
    .main-nav li { width: auto; }
    
    .bento-grid { grid-template-columns: repeat(4, 1fr); grid-auto-rows: 220px; }
    .pillars-grid { grid-template-columns: repeat(4, 1fr); }
    .footer-content { grid-template-columns: 2fr 1fr 1fr; text-align: left; }
    .footer-brand { grid-column: auto; }
    .footer-social ul { justify-content: flex-start; }
}