/* ============================================
   CSS Variables & Design Tokens (From Bioweb)
   ============================================ */
:root {
    --hue: 260;

    /* Colors - Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-tertiary: #1a1a24;
    --bg-card: rgba(22, 22, 32, 0.8);
    --bg-card-hover: rgba(30, 30, 45, 0.9);
    --bg-glass: rgba(16, 16, 24, 0.7);

    --text-primary: #e8e8f0;
    --text-secondary: #8888a0;
    --text-muted: #44445a;

    --accent-primary: hsl(var(--hue), 70%, 65%);
    --accent-secondary: hsl(var(--hue), 60%, 75%);
    --accent-glow: hsla(var(--hue), 70%, 65%, 0.3);
    
    --success: #00b894;
    --success-bg: rgba(0, 184, 148, 0.1);

    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    /* Typography */
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.text-accent {
    color: var(--accent-primary);
    text-shadow: 0 0 20px var(--accent-glow);
}

/* ============================================
   Layout & Containers
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Navbar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    display: flex;
    align-items: center;
}

.nav-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.logo-img-sm {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    filter: grayscale(1);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

.nav-links a:not(.btn) {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #fff;
    border: none;
}

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

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--text-secondary);
    background-color: var(--bg-secondary);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
    border-radius: 12px;
}

.glow-effect {
    box-shadow: 0 0 20px var(--accent-glow);
}

.glow-effect:hover {
    box-shadow: 0 0 30px var(--accent-primary);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    padding: 120px 24px 120px;
    text-align: center;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -10%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(0,0,0,0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge {
    background: var(--bg-secondary);
    color: var(--accent-primary);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 40px;
}

.hero-actions {
    margin-bottom: 48px;
}

/* ============================================
   VirusTotal Badge
   ============================================ */
.vt-badge {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 16px 24px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.vt-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--success-bg);
    color: var(--success);
    border-radius: 50%;
}

.vt-info {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.vt-title {
    font-weight: 700;
    color: var(--success);
    font-size: 1.1rem;
}

.vt-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.vt-link {
    margin-left: 24px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    padding-left: 24px;
    border-left: 1px solid var(--border-color);
    transition: color 0.2s ease;
}

.vt-link:hover {
    color: var(--text-primary);
}

.sm-icon {
    width: 14px;
    height: 14px;
}

/* ============================================
   Features Section
   ============================================ */
.features {
    padding: 120px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.glass {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    padding: 32px;
    border-radius: 16px;
    transition: all 0.3s ease;
}

.glass:hover {
    transform: translateY(-5px);
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

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

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   Animations
   ============================================ */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}