:root {
    --bg-dark: #0a0b10;
    --card-bg: rgba(20, 22, 30, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --primary-neon: #38bdf8;
    --primary-glow: rgba(56, 189, 248, 0.3);
    --accent-blue: #2563eb;
    --gradient-brand: linear-gradient(135deg, #38bdf8 0%, #2563eb 100%);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

/* Background Effects */
.background-elements {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    z-index: -1;
    overflow: hidden;
}
.hero-bg-img {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover;
    opacity: 0.15;
    mix-blend-mode: luminosity;
}
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
}
.orb-1 {
    width: 600px; height: 600px;
    background: var(--accent-blue);
    top: -200px; right: -100px;
}
.orb-2 {
    width: 500px; height: 500px;
    background: var(--primary-neon);
    bottom: 20%; left: -200px;
    opacity: 0.2;
}

/* Typography & Utilities */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}
.gradient-text {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}
.container-sm {
    max-width: 800px;
}
.center-text {
    text-align: center;
}
.mt-4 { margin-top: 3rem; }
.section {
    padding: 100px 0;
}
.no-pb { padding-bottom: 0; }

.section-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}
.section-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* Navigation */
.glass-nav {
    position: fixed;
    top: 0; width: 100%;
    z-index: 100;
    background: rgba(10, 11, 16, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 5%;
}
.logo img {
    height: 40px;
    filter: drop-shadow(0 0 10px rgba(255,255,255,0.2));
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}
.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}
.nav-links a:hover {
    color: var(--primary-neon);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
}
.btn-small {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
}
.primary-btn {
    background: var(--gradient-brand);
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}
.primary-btn:hover {
    box-shadow: 0 6px 25px var(--primary-glow);
    transform: translateY(-2px);
}
.secondary-btn {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}
.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}
.full-width {
    width: 100%;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    text-align: center;
}
.hero-content {
    max-width: 800px;
    padding: 0 20px;
    animation: fadeUp 1s ease-out;
}
.badge {
    display: inline-block;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--primary-neon);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    font-weight: 900;
    letter-spacing: -1px;
}
.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}
.hero-actions i { margin-left: 8px; }

.guarantee-tags {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.guarantee-tags span i {
    color: var(--primary-neon);
    margin-right: 5px;
}

/* Glass Card Global Utilities */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Side-by-Side Section */
.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.feature-list {
    list-style: none;
    margin-top: 2rem;
}
.feature-list li {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.feature-icon {
    width: 50px; height: 50px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-neon);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    border: 1px solid rgba(37, 99, 235, 0.2);
}
.feature-list h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}
.feature-list p {
    color: var(--text-muted);
    font-size: 0.95rem;
}
.abstract-card {
    position: relative;
    padding: 1rem;
}
.visual-badge {
    position: absolute;
    top: -15px; left: -15px;
    background: var(--gradient-brand);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: bold;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px var(--primary-glow);
    z-index: 2;
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}
.pricing-card {
    position: relative;
    display: flex;
    flex-direction: column;
}
.pricing-card:hover {
    transform: translateY(-10px);
    border-color: rgba(56, 189, 248, 0.3);
}
.pricing-card.popular {
    transform: scale(1.05);
    border-color: rgba(37, 99, 235, 0.5);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5), 0 0 20px rgba(37, 99, 235, 0.1);
}
.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-10px);
}
.popular-tag {
    position: absolute;
    top: 0; left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient-brand);
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
}
.plan-icon {
    font-size: 2.5rem;
    color: var(--primary-neon);
    margin-bottom: 1rem;
}
.plan-header h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}
.price {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-heading);
    margin-bottom: 2rem;
}
.price span {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}
.plan-specs {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
    flex-grow: 1;
}
.plan-specs li {
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.plan-specs li i {
    color: var(--text-muted);
    width: 20px;
    text-align: center;
}
.plan-specs li i.fa-check { color: #10b981; }
.plan-specs li i.fa-times { color: #ef4444; }
.plan-specs li.disabled { color: var(--text-muted); opacity: 0.7;}

/* Guarantees Matrix */
.guarantees-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}
.guarantee-item {
    padding: 2rem;
    background: rgba(255,255,255,0.02);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    transition: background 0.3s ease;
}
.guarantee-item:hover {
    background: rgba(255,255,255,0.05);
}
.guarantee-item i {
    font-size: 2.5rem;
    color: var(--primary-neon);
    margin-bottom: 1rem;
}

/* Footer */
.site-footer {
    background: #050608;
    padding-top: 80px;
    border-top: 1px solid var(--glass-border);
    margin-top: 100px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}
.footer-logo {
    height: 40px;
    margin-bottom: 1.5rem;
}
.footer-brand p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    max-width: 400px;
}
.socials a {
    display: inline-flex;
    align-items: center; justify-content: center;
    width: 40px; height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    margin-right: 10px;
    transition: all 0.3s ease;
}
.socials a:hover {
    background: var(--primary-neon);
    transform: translateY(-3px);
}
.footer-links h4, .footer-contact h4 {
    font-family: var(--font-heading);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}
.footer-links ul, .footer-contact ul {
    list-style: none;
}
.footer-links li, .footer-contact li {
    margin-bottom: 0.8rem;
    color: var(--text-muted);
}
.footer-links a:hover { color: var(--primary-neon); }
.footer-contact li i {
    width: 20px;
    color: var(--primary-neon);
    margin-right: 5px;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations & Responsive */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 992px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 3rem auto 0;
    }
    .pricing-card.popular {
        transform: scale(1);
    }
    .pricing-card.popular:hover {
        transform: translateY(-10px);
    }
    .section-grid {
        grid-template-columns: 1fr;
    }
    .guarantees-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    .nav-links { display: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}