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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --dark: #1f2937;
    --light: #f9fafb;
    --gray: #6b7280;
    --gray-light: #e5e7eb;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
    height: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    background-color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--gray);
}

.highlight {
    color: var(--primary);
}

.price {
    color: var(--secondary);
    font-weight: 800;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-nav, .btn-footer {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-whatsapp {
    background: linear-gradient(135deg, #25d366, #128c7e);
}

.btn-whatsapp:hover {
    background: linear-gradient(135deg, #128c7e, #25d366);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

.btn-nav {
    padding: 10px 20px;
    background: var(--primary);
    color: white;
    border-radius: 8px;
}

.btn-large {
    padding: 20px 40px;
    font-size: 1.2rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark);
}

.logo-icon {
    font-size: 2rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: var(--transition);
}

.nav a:hover {
    color: var(--primary);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
}

/* Hero */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #f0f4ff 0%, #fdf2f8 100%);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--gray);
}

.hero-intro {
    font-size: 1rem;
    margin-bottom: 2rem;
    color: var(--gray);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 20px;
    margin-bottom: 2rem;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark);
}

.feature i {
    color: var(--secondary);
}

.hero-image {
    position: relative;
}

.mockup {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transform: perspective(1000px) rotateY(-10deg);
    transition: var(--transition);
}

.mockup:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.mockup-screen img {
    width: 100%;
    height: auto;
    display: block;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

/* Benefits */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.benefit-card {
    background: white;
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
}

/* How It Works */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.step {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: relative;
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
}

.cta-center {
    text-align: center;
}

/* Portfolio */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.portfolio-item {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.portfolio-img {
    height: 250px;
    overflow: hidden;
}

.portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-img img {
    transform: scale(1.05);
}

.portfolio-info {
    padding: 20px;
    background: white;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
    width: 100%;
    padding: 20px;
    background: white;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: #f9fafb;
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    background: #f9fafb;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer.open {
    padding: 20px;
    max-height: 300px;
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    text-align: center;
    padding: 100px 0;
}

.cta-title {
    color: white;
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.cta-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
}

.cta-note {
    margin-top: 20px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h4 {
    margin-bottom: 20px;
    color: white;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-col a {
    color: #d1d5db;
    text-decoration: none;
    transition: var(--transition);
}

.footer-col a:hover {
    color: white;
}

.footer-about {
    color: #d1d5db;
    margin: 20px 0;
}

.social {
    display: flex;
    gap: 15px;
}

.social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social a:hover {
    background: var(--primary);
}

.btn-footer {
    display: inline-block;
    margin-top: 15px;
    padding: 12px 24px;
    background: #25d366;
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 30px;
    text-align: center;
    color: #9ca3af;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom a {
    color: #9ca3af;
    text-decoration: none;
}

.footer-bottom a:hover {
    color: white;
}

/* Responsive */
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
}

@media (max-width: 992px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2.2rem; }
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    h1 { font-size: 2.4rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.3rem; }
    .container {
        padding: 0 20px;
    }
    .nav { display: none; }
    .menu-toggle { display: block; }
    .nav.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        gap: 15px;
        z-index: 1001;
    }
    .hero {
        padding: 140px 0 80px;
    }
    .hero-title {
        font-size: 2.4rem;
    }
    .hero-subtitle {
        font-size: 1.1rem;
    }
    .hero-cta { 
        flex-direction: column; 
        gap: 15px;
    }
    .hero-cta .btn-primary,
    .hero-cta .btn-secondary {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
    .mockup {
        transform: none !important;
    }
    .step-number {
        width: 36px;
        height: 36px;
        top: -18px;
    }
    .benefits-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { 
        flex-direction: column; 
        gap: 15px; 
        text-align: center;
    }
    section {
        padding: 60px 0;
    }
    .final-cta {
        padding: 80px 0;
    }
    .cta-title {
        font-size: 2.2rem;
    }
    .cta-subtitle {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    .hero-title {
        font-size: 2rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .container {
        padding: 0 15px;
    }
    .btn-primary, .btn-secondary, .btn-nav, .btn-footer {
        padding: 14px 24px;
        font-size: 0.95rem;
    }
    .benefit-card, .step, .portfolio-info {
        padding: 20px;
    }
    .faq-question {
        padding: 15px;
        font-size: 1rem;
    }
    .footer {
        padding: 40px 0 20px;
    }
    .footer-col {
        margin-bottom: 30px;
    }
}