/* ============================================
   VARIÁVEIS CSS E RESET
   ============================================ */

:root {
    /* Cores principais - Verde financeiro */
    --color-primary: #10b981;
    --color-primary-dark: #059669;
    --color-primary-light: #34d399;
    --color-secondary: #065f46;
    
    /* Cores neutras */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Bordas */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Transições */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

/* ============================================
   UTILITÁRIOS
   ============================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-4xl);
    }
}

/* ============================================
   BOTÕES
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

/* ============================================
   HEADER
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    position: relative;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: none;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu li a {
    color: var(--color-gray-700);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-gray-700);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 767px) {
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        border-top: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }
    
    .nav-menu.active {
        max-height: 400px;
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu li a {
        display: block;
        padding: var(--spacing-sm) 0;
    }
}

@media (min-width: 768px) {
    .nav-menu {
        display: flex;
    }
    
    .menu-toggle {
        display: none;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-primary-light) 0%, transparent 70%);
    opacity: 0.1;
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background-color: var(--color-primary-light);
    color: var(--color-secondary);
    border-radius: var(--border-radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-gray-900);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    justify-content: center;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
}

/* ============================================
   SEÇÃO COMO FUNCIONA
   ============================================ */

.como-funciona {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-white);
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.step-card {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-gray-50);
    border-radius: var(--border-radius-xl);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    color: var(--color-white);
}

.step-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.step-card p {
    color: var(--color-gray-600);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   SEÇÃO FUNCIONALIDADES
   ============================================ */

.funcionalidades {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.feature-card {
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background-color: var(--color-primary-light);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   SEÇÃO VISUAL (MOCKUP)
   ============================================ */

.visual {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-white);
}

.visual-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.visual-text h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

.visual-text p {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.visual-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.visual-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-gray-700);
    font-weight: 500;
}

.visual-list li i {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

.visual-mockup {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    position: relative;
    min-height: 400px;
}

.mockup-dashboard {
    width: 100%;
    max-width: 500px;
    background-color: var(--color-white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
}

.mockup-header {
    background-color: var(--color-gray-100);
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-gray-300);
}

.mockup-dots span:nth-child(1) {
    background-color: #ef4444;
}

.mockup-dots span:nth-child(2) {
    background-color: #f59e0b;
}

.mockup-dots span:nth-child(3) {
    background-color: #10b981;
}

.mockup-content {
    padding: var(--spacing-lg);
}

.mockup-chart {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.mockup-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.mockup-stat {
    height: 80px;
    background-color: var(--color-gray-100);
    border-radius: var(--border-radius-md);
}

.mockup-phone {
    width: 200px;
    height: 400px;
    background-color: var(--color-gray-900);
    border-radius: 30px;
    padding: 10px;
    box-shadow: var(--shadow-xl);
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background-color: var(--color-white);
    border-radius: 25px;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.whatsapp-message {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.message-bubble {
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-xs);
    max-width: 80%;
    background-color: var(--color-gray-100);
    color: var(--color-gray-800);
}

.message-bubble.bot {
    background-color: var(--color-primary);
    color: var(--color-white);
    align-self: flex-start;
}

@media (min-width: 1024px) {
    .visual-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .mockup-phone {
        position: relative;
        transform: none;
        top: auto;
        right: auto;
    }
}

@media (max-width: 1023px) {
    .mockup-phone {
        display: none;
    }
}

/* ============================================
   SEÇÃO TESTIMONIALS
   ============================================ */

.testimonials {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-gray-50);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-card {
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.testimonial-icon {
    font-size: var(--font-size-3xl);
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    justify-content: center;
    gap: 4px;
    color: #fbbf24;
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   SEÇÃO PLANOS
   ============================================ */

.planos {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-white);
}

.plans-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.plan-card {
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
    position: relative;
}

.plan-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.plan-card.plan-featured {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 0.25rem 1rem;
    border-radius: var(--border-radius-xl);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.plan-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.plan-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-sm);
}

.price-amount {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-gray-900);
}

.price-period {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
}

.plan-description {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

.plan-features {
    margin-bottom: var(--spacing-lg);
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: var(--color-gray-700);
}

.plan-features li i {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
    .plans-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   FAQ
   ============================================ */

.faq {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-gray-50);
}

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

.faq-item {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.faq-item.active {
    border-color: var(--color-primary);
}

.faq-question {
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.faq-question h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-900);
}

.faq-question i {
    color: var(--color-primary);
    transition: transform var(--transition-base);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand p {
    margin-top: var(--spacing-sm);
    color: var(--color-gray-400);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-column ul li a {
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
    color: var(--color-primary-light);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-800);
    text-align: center;
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 1fr;
    }
}

/* ============================================
   ANIMAÇÕES
   ============================================ */

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Ripple effect para botões */
.btn {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ============================================
   RESPONSIVIDADE ADICIONAL
   ============================================ */

@media (max-width: 640px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: var(--font-size-base);
    }
}