:root {
    /* Colors */
    --bg-dark: #1e293b;
    --bg-card: rgba(51, 65, 85, 0.4);
    --border-card: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-muted: #94a3b8;
    
    /* Brand Colors */
    --brand-primary: #3b82f6; /* Electric Blue */
    --brand-secondary: #8b5cf6; /* Purple */
    --brand-gradient: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 6rem 0;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Background Effects */
body::before {
    content: '';
    position: fixed;
    top: -20%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(7, 10, 19, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, rgba(7, 10, 19, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

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

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

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

.highlight {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glassmorphism utility */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-card);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    font-weight: 600;
    font-family: var(--font-heading);
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    border: none;
}

.btn-primary {
    background: var(--brand-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    backdrop-filter: blur(5px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

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

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

.full-width {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(7, 10, 19, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-card);
}

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

.logo a {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-heading);
    letter-spacing: -1px;
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

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

.mockup-card {
    padding: 1.5rem;
    position: relative;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.mockup-card:hover {
    transform: perspective(1000px) rotateY(0) rotateX(0);
}

.mockup-header {
    display: flex;
    gap: 6px;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-card);
    padding-bottom: 1rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #475569;
}

.dot:nth-child(1) { background: #ef4444; }
.dot:nth-child(2) { background: #eab308; }
.dot:nth-child(3) { background: #22c55e; }

.sms-bubble {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    max-width: 85%;
}

.from-them {
    background: rgba(255, 255, 255, 0.05);
    border-bottom-left-radius: 2px;
    color: var(--text-muted);
}

.from-me {
    background: var(--brand-gradient);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 2px;
}

/* Section Common */
.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 4rem;
}

/* How It Works */
.how-it-works, .pricing, .contact {
    padding: var(--section-padding);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.step-card {
    padding: 2.5rem 2rem;
    text-align: center;
    transition: transform 0.3s ease;
}

.step-card:hover {
    transform: translateY(-10px);
}

.step-number {
    font-size: 4rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: rgba(255, 255, 255, 0.05);
    line-height: 1;
    margin-bottom: -1rem;
}

.step-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* Pricing */
.pricing-wrapper {
    max-width: 500px;
    margin: 0 auto;
    padding: 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.pricing-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--brand-gradient);
}

.pricing-header {
    margin-bottom: 2.5rem;
}

.pricing-header h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.price {
    font-size: 4rem;
    font-weight: 800;
    font-family: var(--font-heading);
    margin-bottom: 1rem;
}

.price span {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 3rem;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

.pricing-features svg {
    width: 24px;
    height: 24px;
    color: var(--brand-primary);
    flex-shrink: 0;
}

/* Contact */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 1.5rem;
}

.contact-info > p {
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.info-item p {
    color: var(--text-muted);
}

.info-item a {
    transition: color 0.2s;
}

.info-item a:hover {
    color: var(--brand-primary);
}

.contact-form-wrapper {
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-muted);
}

input, textarea {
    width: 100%;
    padding: 1rem;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-card);
    color: white;
    font-family: inherit;
    transition: all 0.3s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Footer */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border-card);
    margin-top: 4rem;
}

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

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

/* Animations */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, visibility;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: none;
}

/* Responsive */
@media (max-width: 968px) {
    .hero-container, .contact-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content p {
        margin: 0 auto 2.5rem auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .mockup-card {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info .section-title {
        text-align: center;
    }
    
    .info-list {
        display: inline-block;
        text-align: left;
        margin: 0 auto;
    }

    .info-item {
        justify-content: flex-start;
        text-align: left;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
        z-index: 101;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-links {
        position: fixed;
        left: -100%;
        top: 0;
        flex-direction: column;
        justify-content: center;
        background-color: rgba(7, 10, 19, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        height: 100vh;
        text-align: center;
        transition: 0.4s;
        z-index: 100;
    }

    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 1.5rem 0;
    }
    
    .nav-links a {
        font-size: 1.5rem;
    }
}