:root {
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --primary-color: #4ade80;
    --primary-hover: #22c55e;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-glow: rgba(74, 222, 128, 0.15);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.background-glow {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(15, 23, 42, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
}

.contact-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.contact-link:hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 5%;
    gap: 4rem;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background: rgba(74, 222, 128, 0.1);
    color: var(--primary-color);
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(74, 222, 128, 0.2);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.highlight {
    background: linear-gradient(135deg, #4ade80, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

/* Call to Action */
.cta-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.btn-primary {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: var(--primary-color);
    color: #000;
    padding: 1rem 2rem;
    border-radius: 1rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.2s ease;
    box-shadow: 0 10px 25px rgba(74, 222, 128, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(74, 222, 128, 0.4);
}

.version-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.feature-item h3 {
    font-size: 1.1rem;
    margin: 0.5rem 0;
    color: var(--text-primary);
}

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

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

/* Phone Mockup */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.app-mockup {
    width: 320px;
    height: 650px;
    background: var(--surface-color);
    border-radius: 40px;
    border: 8px solid #0f172a;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.mockup-header {
    padding: 2.5rem 1.5rem 1.5rem;
    background: rgba(15, 23, 42, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mockup-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 25px;
    background: #0f172a;
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px;
}

.mockup-nav h4 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.mockup-nav span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.mockup-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mockup-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.highlight-item {
    background: rgba(74, 222, 128, 0.05);
    border-color: rgba(74, 222, 128, 0.2);
}

.mockup-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.bg-blue { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.bg-purple { background: rgba(168, 85, 247, 0.2); color: #c084fc; }
.bg-green { background: rgba(74, 222, 128, 0.2); color: #4ade80; }

.mockup-title {
    font-size: 0.9rem;
    font-weight: 500;
}

.mockup-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.text-green {
    color: var(--primary-color) !important;
}

.mockup-fab {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #000;
    box-shadow: 0 10px 25px rgba(74, 222, 128, 0.3);
}

/* Contact Section */
.contact-section {
    padding: 6rem 5%;
    background: rgba(30, 41, 59, 0.3);
    border-top: 1px solid rgba(255,255,255,0.05);
}

.contact-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-container h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-container p {
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: left;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 1rem;
    border-radius: 0.75rem;
    background: var(--surface-color);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2);
}

.btn-submit {
    background-color: var(--primary-color);
    color: #000;
    padding: 1rem;
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 1rem;
}

.btn-submit:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

/* Footer */
footer {
    text-align: center;
    padding: 4rem 5%;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 2rem;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .cta-group {
        justify-content: center;
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }
    
    .app-mockup {
        width: 280px;
        height: 580px;
    }
    
    .contact-container h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .contact-section { 
        padding: 4rem 5%; 
    }
}