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

:root {
    /* Liquid Glass Colors */
    --glass-white: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: rgba(0, 0, 0, 0.1);
    
    /* Brand Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 120px;
    
    /* Border Radius (Liquid Glass Philosophy) */
    --radius-soft: 24px;
    --radius-round: 9999px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a3e 50%, #0f0f23 100%);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    position: relative;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    animation: backgroundShift 20s ease-in-out infinite;
    z-index: -1;
}

@keyframes backgroundShift {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

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

/* Glass Effect Utility */
.glass {
    background: var(--glass-white);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

/* Navigation */
.nav-glass {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(15, 15, 35, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-glass.scrolled {
    padding: 12px 0;
    background: rgba(15, 15, 35, 0.95);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

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

.nav-links a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-round);
}

.nav-links a:not(.btn-primary):hover::after {
    width: 100%;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 12px 28px;
    border-radius: var(--radius-soft);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    background: var(--glass-white);
    backdrop-filter: blur(20px) saturate(180%);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Hero Section */
.hero {
    padding-top: 180px;
    padding-bottom: 120px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--glass-white);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-round);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-size: 72px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.1s backwards;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
    background-size: 200% 200%;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s backwards;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 64px;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.3s backwards;
}

.hero-stats {
    display: flex;
    gap: 64px;
    justify-content: center;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s backwards;
}

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

.stat-value {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Floating Cards */
.hero-visual {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.floating-card {
    position: absolute;
    background: var(--glass-white);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-soft);
    padding: 16px;
    box-shadow: 0 8px 32px var(--glass-shadow);
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 10%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 20%;
    left: 15%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.card-icon {
    font-size: 18px;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
}

.card-body {
    font-size: 13px;
    color: var(--text-secondary);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styles */
section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--glass-white);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-soft);
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 16px 48px rgba(99, 102, 241, 0.2);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-white);
    border-radius: var(--radius-soft);
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.feature-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.feature-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* How It Works */
.steps {
    display: flex;
    flex-direction: column;
    gap: 64px;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 40px;
    align-items: center;
    position: relative;
}

.step::after {
    content: '';
    position: absolute;
    left: 60px;
    top: 100%;
    width: 2px;
    height: 64px;
    background: linear-gradient(180deg, var(--glass-border), transparent);
}

.step:last-child::after {
    display: none;
}

.step-number {
    font-size: 64px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
    width: 120px;
    text-align: center;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-visual {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-white);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-soft);
}

.visual-icon {
    font-size: 48px;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--glass-white);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-soft);
    padding: 48px 40px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 16px 48px rgba(99, 102, 241, 0.2);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 16px 48px rgba(99, 102, 241, 0.3);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 6px 20px;
    border-radius: var(--radius-round);
    font-size: 13px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--glass-border);
}

.pricing-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price-currency {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-secondary);
}

.price-amount {
    font-size: 56px;
    font-weight: 800;
    line-height: 1;
}

.price-period {
    font-size: 16px;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-form {
    display: flex;
    gap: 16px;
    max-width: 600px;
    margin: 0 auto 16px;
}

.form-input {
    flex: 1;
    padding: 16px 24px;
    background: var(--glass-white);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-soft);
    color: var(--text-primary);
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.cta-note {
    font-size: 14px;
    color: var(--text-muted);
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 300px;
}

.footer-tagline {
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 15px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.3s;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--glass-border);
    font-size: 14px;
    color: var(--text-muted);
}

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

.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.social-links a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 56px;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }
    
    .nav-links {
        gap: 20px;
    }
    
    .nav-links a:not(.btn-primary) {
        display: none;
    }
    
    .hero {
        padding-top: 140px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 32px;
    }
    
    .floating-card {
        display: none;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto;
    }
    
    .step-visual {
        margin: 0 auto;
    }
    
    .step::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 36px;
    }
    
    .cta-form {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: rgba(99, 102, 241, 0.3);
    color: white;
}