/* Custom CSS Variables for Design System */
:root {
    /* Colors */
    --clr-primary: #4f46e5;       /* Indigo */
    --clr-primary-light: #6366f1;
    --clr-primary-dark: #4338ca;
    --clr-accent: #06b6d4;        /* Cyan */
    --clr-whatsapp: #25D366;
    --clr-whatsapp-dark: #128C7E;
    --clr-danger: #ef4444;
    --clr-success: #10b981;
    
    /* Backgrounds & Surfaces */
    --bg-main: #ffffff;
    --bg-light: #f8fafc;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --border-color: #e2e8f0;
    
    /* Text */
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-inverse: #ffffff;
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    
    /* Radii */
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --trans-fast: 0.2s ease;
    --trans-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-main);
}

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

ul {
    list-style: none;
}

/* Typography Utilities */
.text-primary { color: var(--clr-primary); }
.text-danger { color: var(--clr-danger); }
.text-success { color: var(--clr-success); }
.text-center { text-align: center; }
.mt-4 { margin-top: 1.5rem; }

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
}
.section-desc.centered {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.text-gradient {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 6rem 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-glass);
    border-radius: var(--radius-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--trans-normal);
    cursor: pointer;
    border: none;
    font-family: var(--font-sans);
}

.btn-small {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-primary {
    background-color: var(--clr-primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.39);
}
.btn-primary:hover {
    background-color: var(--clr-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.btn-whatsapp {
    background-color: var(--clr-whatsapp);
    color: var(--text-inverse);
    box-shadow: 0 4px 14px 0 rgba(37, 211, 102, 0.39);
}
.btn-whatsapp:hover {
    background-color: var(--clr-whatsapp-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-main);
}
.btn-outline:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
}

.btn-full {
    width: 100%;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--trans-fast);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
}

.desktop-nav {
    display: flex;
    gap: 2rem;
}

.desktop-nav a {
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--trans-fast);
}
.desktop-nav a:hover {
    color: var(--clr-primary);
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 10rem;
    padding-bottom: 8rem;
    overflow: hidden;
}

.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
}

.shape-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: rgba(79, 70, 229, 0.2);
}

.shape-2 {
    bottom: -10%;
    right: -10%;
    width: 40vw;
    height: 40vw;
    background: rgba(6, 182, 212, 0.2);
}

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

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 1.5rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--clr-success);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

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

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.avatars {
    display: flex;
}
.avatars img, .avatar-more {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--bg-main);
    margin-left: -10px;
}
.avatars img:first-child {
    margin-left: 0;
}
.avatar-more {
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: bold;
    color: var(--text-main);
}

/* Mockup elements */
.mockup-card {
    padding: 1.5rem;
    animation: float 6s ease-in-out infinite;
    background: white;
}
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    font-size: 1.125rem;
}
.mockup-status {
    margin-left: auto;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-md);
    background: rgba(16, 185, 129, 0.1);
    color: var(--clr-success);
}

.mockup-app-info {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    align-items: center;
}
.mockup-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #a855f7, #ec4899);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.mockup-app-info h4 {
    font-size: 1.25rem;
}
.mockup-app-info p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.progress-section {
    margin-bottom: 1.5rem;
}
.progress-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}
.progress-bar {
    height: 8px;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: var(--clr-primary);
    border-radius: var(--radius-full);
}
.mockup-btn {
    width: 100%;
    padding: 0.75rem;
    background: var(--text-main);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    margin-top: 1rem;
    cursor: pointer;
    transition: var(--trans-fast);
}
.mockup-btn:hover {
    background: #000;
}

/* Problem Section */
.problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.frustration-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border-left: 4px solid var(--clr-danger);
}
.frustration-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--clr-danger);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}
.problem-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.125rem;
    font-weight: 500;
}
.problem-list i {
    font-size: 1.5rem;
}

/* Solutions */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}
.step-card {
    position: relative;
    padding: 2rem 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--trans-normal);
}
.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.step-card.highlight {
    border-color: var(--clr-primary);
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.15);
}
.step-number {
    position: absolute;
    top: -15px;
    left: 20px;
    background: var(--bg-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}
.step-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}
.step-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}
.pricing-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    position: relative;
    display: flex;
    flex-direction: column;
    transition: var(--trans-normal);
}
.pricing-card:hover {
    box-shadow: var(--shadow-xl);
}
.pricing-card.popular {
    border-color: var(--clr-primary);
    transform: scale(1.05);
}
.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}
.popular-tag {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--clr-primary);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
}
.pricing-header {
    margin-bottom: 2rem;
}
.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.price {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
}
.pricing-features {
    margin-bottom: 2rem;
    flex-grow: 1;
    text-align: left;
}
.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-weight: 500;
}
.pricing-features li i {
    color: var(--clr-success);
    font-weight: bold;
}
.pricing-features li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
}
.pricing-features li.disabled i {
    color: var(--text-muted);
    font-weight: normal;
}
.link {
    color: var(--clr-primary);
    font-weight: 600;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}
.feature-box {
    display: flex;
    flex-direction: column;
    padding: 2.5rem;
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--trans-normal);
}
.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--clr-primary-light);
}
.feat-icon {
    font-size: 2.5rem;
    color: var(--clr-primary);
    margin-bottom: 1rem;
}
.feature-box h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

/* Trust / Testimonials */
.testimonials {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}
.testimonial-card {
    padding: 2.5rem;
    text-align: left;
    background: white;
}
.stars {
    color: #fbbf24;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}
.testimonial-card p {
    font-size: 1.125rem;
    font-style: italic;
    margin-bottom: 2rem;
    color: var(--text-muted);
}
.author {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}
.author div {
    display: flex;
    flex-direction: column;
}
.author strong {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    color: var(--text-main);
}
.author span {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* FAQ */
.faq-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
}
.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
}
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1.25rem;
    font-weight: 600;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: var(--trans-normal);
    color: var(--text-muted);
}
.faq-answer p {
    padding-top: 1rem;
}
.faq-item.active .faq-answer {
    max-height: 200px;
}
.faq-item.active .faq-question i {
    transform: rotate(180deg);
}
.faq-question i {
    transition: var(--trans-fast);
}

/* Contact Section */
.contact-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding: 4rem;
    background: white;
}
.contact-methods {
    display: grid;
    gap: 1.5rem;
    margin-top: 3rem;
}
.contact-method-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--trans-fast);
}
.contact-method-card:hover {
    border-color: var(--clr-primary);
    transform: translateX(10px);
    background: white;
    box-shadow: var(--shadow-sm);
}
.contact-method-card .icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}
.contact-method-card .whatsapp { background-color: var(--clr-whatsapp); }
.contact-method-card .email { background-color: var(--clr-primary); }
.contact-method-card h5 { font-size: 1.125rem; margin-bottom: 0.25rem; }
.contact-method-card span { color: var(--text-muted); font-size: 0.875rem; }

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}
.contact-form h4 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
}
.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    transition: var(--trans-fast);
}
.form-group input:focus {
    outline: none;
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}
.form-disclaimer {
    margin-top: 1rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background: var(--text-main);
    color: white;
    padding: 4rem 0 2rem;
}
.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 3rem;
}
.footer-brand p {
    color: #94a3b8;
    margin-top: 1rem;
    max-width: 300px;
}
.footer-links {
    display: flex;
    gap: 2rem;
}
.footer-links a {
    color: #e2e8f0;
    transition: var(--trans-fast);
}
.footer-links a:hover {
    color: var(--clr-accent);
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    color: #64748b;
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .pricing-card.popular {
        transform: none;
    }
    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 900px) {
    .hero-container, .problem-grid, .faq-container, .contact-card {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .hero {
        padding-top: 8rem;
        text-align: center;
    }
    .hero-title {
        font-size: 3.5rem;
    }
    .hero-cta {
        justify-content: center;
    }
    .hero-trust {
        justify-content: center;
    }
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid, .testimonials {
        grid-template-columns: 1fr;
    }
    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }
}

@media (max-width: 600px) {
    .desktop-nav {
        display: none;
    }
    .nav-actions .btn {
        padding: 0.5rem 1rem;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-cta {
        flex-direction: column;
    }
    .steps-grid {
        grid-template-columns: 1fr;
    }
    .section-title {
        font-size: 2rem;
    }
    .contact-card {
        padding: 2rem;
    }
}