:root {
    /* Color Palette */
    --bg-dark: #0a0a0c;
    --bg-card: rgba(25, 25, 30, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    
    --text-primary: #ffffff;
    --text-secondary: #94949a;
    
    --accent-blue: #4C84FF;
    --accent-purple: #A564FF;
    
    --badge-bg: rgba(76, 132, 255, 0.1);
    --badge-text: #8fb1ff;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Layout */
    --max-width: 1200px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html, body {
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
    font-weight: 600;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

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

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

.text-gradient {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent; /* Fallback */
    display: inline-block;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(76, 132, 255, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(165, 100, 255, 0.4);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    color: var(--text-primary);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
    font-family: var(--font-heading);
}

.btn-block {
    width: 100%;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background-color: var(--badge-bg);
    color: var(--badge-text);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(76, 132, 255, 0.2);
    margin-bottom: 24px;
}

.badge-accent {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    margin-left: 12px;
}

/* Background Glow */
.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(76, 132, 255, 0.15) 0%, rgba(10, 10, 12, 0) 70%);
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    pointer-events: none;
}

.bg-glow-left {
    top: -100px;
    left: -200px;
}

.bg-glow-right {
    top: 30%;
    right: -200px;
    background: radial-gradient(circle, rgba(165, 100, 255, 0.15) 0%, rgba(10, 10, 12, 0) 70%);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 100;
    transition: all var(--transition-base);
    backdrop-filter: blur(0px);
    background: transparent;
}

.navbar.scrolled {
    padding: 16px 0;
    background: rgba(10, 10, 12, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

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

.brand-logo {
    height: 36px;
}

.nav-links {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 180px 0 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-container {
    max-width: 900px;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5.5rem);
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.hero-title span {
    display: block;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
    font-weight: 400;
}

/* Sections Base */
section {
    padding: 100px 0;
    position: relative;
}

.section-top {
    margin-bottom: 64px;
    max-width: 600px;
}

.section-top.text-center {
    margin: 0 auto 64px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

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

.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 32px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.problem-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
}

.problem-card .icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--text-secondary);
}

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

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

/* Features Section */
.features-list {
    display: flex;
    flex-direction: column;
    gap: 48px;
    max-width: 800px;
    margin: 0 auto;
}

.feature-row {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: transform var(--transition-base);
}

.feature-row:hover {
    transform: translateX(10px);
    border-color: rgba(255, 255, 255, 0.12);
}

.feature-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
}

.feature-text h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.feature-text p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.feature-bullets {
    margin-top: 16px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.feature-bullets li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.feature-bullets li::before {
    content: "•";
    color: var(--accent-purple);
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    align-items: start;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    backdrop-filter: blur(10px);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card-featured {
    border-color: var(--accent-purple);
    background: linear-gradient(180deg, rgba(165, 100, 255, 0.05) 0%, rgba(25, 25, 30, 0.6) 100%);
    box-shadow: 0 10px 40px rgba(165, 100, 255, 0.1);
}

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
    color: #fff;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--font-heading);
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
    margin-bottom: 24px;
}

.card-header h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.card-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    min-height: 48px;
}

.card-header .price {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin: 16px 0;
}

.card-body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-body ul {
    margin-bottom: 32px;
    flex-grow: 1;
}

.card-body li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.card-body li strong {
    color: var(--text-primary);
    font-weight: 500;
}

.card-body svg {
    width: 20px;
    height: 20px;
    color: var(--accent-blue);
    flex-shrink: 0;
    margin-top: 2px;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 64px 0 24px;
    background: rgba(10, 10, 12, 0.5);
    margin-top: 64px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
    gap: 24px;
}

.brand-logo-small {
    height: 28px;
    margin-bottom: 8px;
    opacity: 0.7;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.85rem;
}

/* Animations & Interactivity via JS Classes */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.stagger-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-up > * {
    animation: slideInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    opacity: 0;
}

.slide-up .badge { animation-delay: 0.1s; }
.slide-up .hero-title { animation-delay: 0.2s; }
.slide-up .hero-subtitle { animation-delay: 0.3s; }
.slide-up .hero-cta { animation-delay: 0.4s; }


/* Responsive Media Queries */
@media (max-width: 768px) {
    .nav-links .btn-ghost {
        display: none;
    }
    
    .hero {
        padding: 140px 0 60px;
    }

    .section-title {
        font-size: 2rem;
    }

    .feature-row {
        flex-direction: column;
        gap: 20px;
        padding: 24px;
    }
    
    .feature-bullets {
        grid-template-columns: 1fr;
    }

    .pricing-card {
        padding: 32px 24px;
    }
}