:root {
    --color-bg: #0f172a;
    --color-bg-alt: #1e293b;
    --color-text: #f8fafc;
    --color-text-muted: #94a3b8;
    --color-primary: #10b981;
    /* Emerald Green */
    --color-primary-hover: #059669;
    --color-accent: #fbbf24;
    /* Amber/Gold */
    --color-danger: #e11d48;
    /* Red for membership */
    --color-danger-hover: #be123c;
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.nav-list {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-list a:not(.btn) {
    color: var(--color-text-muted);
    font-weight: 500;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

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

.btn-secondary:hover {
    border-color: var(--color-text);
    background-color: rgba(255, 255, 255, 0.05);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-danger {
    background-color: var(--color-danger);
    color: white;
    border-radius: 8px;
    /* Slightly less rounded for card button */
}

.btn-danger:hover {
    background-color: var(--color-danger-hover);
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-title .highlight {
    color: var(--color-primary);
    -webkit-text-fill-color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.hero-background {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
    z-index: 1;
    pointer-events: none;
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

/* About */
.about {
    background-color: var(--color-bg-alt);
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.about-text p {
    margin-bottom: 1.5rem;
}

/* Membership Section */
.membership {
    background-color: #000;
    /* Deep black for contrast */
}

.membership-card {
    max-width: 450px;
    margin: 0 auto;
    background-color: #1a1a1a;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #333;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card-header {
    background: linear-gradient(135deg, #991b1b 0%, #7f1d1d 100%);
    padding: 2.5rem 2rem;
    position: relative;
    color: white;
    text-align: center;
    overflow: hidden;
}

/* Abstract laptop/chart background effect */
.card-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwIiBoZWlnaHQ9IjEwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48cGF0aCBkPSJNMCAxMDBMMTAwIDBMMTAwIDEwMFoiIGZpbGw9InJnYmEoMCwwLDAsMC4yKSIvPjwvc3ZnPg==');
    background-size: cover;
    opacity: 0.3;
    z-index: 1;
}

.card-header-content {
    position: relative;
    z-index: 2;
}

.card-brand {
    position: absolute;
    top: -1.5rem;
    right: -1rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    text-align: right;
    line-height: 1.2;
    opacity: 0.9;
}

.card-tier-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.card-tier-subtitle {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

.card-body {
    padding: 2rem;
}

.tier-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
}

.price-container {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: baseline;
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

.interval {
    color: var(--color-text-muted);
    margin-left: 0.5rem;
    font-size: 1rem;
}

.tier-description {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.tier-description strong {
    color: white;
}

.benefits-list {
    margin-bottom: 1.5rem;
}

.benefits-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: #d4d4d4;
    font-size: 0.95rem;
}

.benefits-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: white;
    font-weight: bold;
}

.tier-note {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.benefits-list-secondary li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: #d4d4d4;
    font-size: 0.95rem;
}

.benefits-list-secondary li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: white;
}

.gift-container {
    margin-top: 3rem;
    display: flex;
    justify-content: center;
}

.gift-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: #1a1a1a;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    border: 1px solid #333;
}

.gift-icon {
    font-size: 1.25rem;
}

.gift-text {
    font-weight: 500;
    color: white;
}

.btn-secondary-gift {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    background-color: #333;
    border: none;
    color: white;
    border-radius: 20px;
}

.btn-secondary-gift:hover {
    background-color: #444;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--color-text-muted);
}

/* CTA */
.cta {
    text-align: center;
    background: linear-gradient(to bottom, var(--color-bg), var(--color-bg-alt));
}

.cta-content {
    max-width: 700px;
}

.cta-text {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

/* Footer */
.footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

    .nav-list {
        display: none;
        /* Simple mobile hide for now, can be expanded */
    }

    .gift-wrapper {
        flex-direction: column;
        text-align: center;
        border-radius: 16px;
    }
}