/**
 * Mousinho Consultoria - Landing Page
 * Desenvolvido por Dante Testa (https://dantetesta.com.br)
 * Data: 05/12/2024 10:17
 * 
 * Design System: Moderno, Clean, Azul/Preto/Branco
 */

/* ============================================
   CSS Variables & Design Tokens
   ============================================ */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-light: #3b82f6;
    --color-primary-dark: #1d4ed8;
    --color-primary-glow: rgba(37, 99, 235, 0.4);
    
    --color-secondary: #0ea5e9;
    --color-accent: #06b6d4;
    
    --color-bg-dark: #0a0a0f;
    --color-bg-card: #111118;
    --color-bg-card-hover: #16161f;
    --color-bg-gradient: linear-gradient(135deg, #0a0a0f 0%, #111827 100%);
    
    --color-text-primary: #ffffff;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-light: rgba(255, 255, 255, 0.15);
    
    --color-success: #22c55e;
    --color-whatsapp: #25d366;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    --gradient-text: linear-gradient(135deg, #60a5fa 0%, #38bdf8 50%, #22d3ee 100%);
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    --gradient-glow: radial-gradient(circle at center, var(--color-primary-glow) 0%, transparent 70%);
    
    /* Typography */
    --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;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px var(--color-primary-glow);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
    
    /* Container */
    --container-max: 1280px;
    --container-padding: 1.5rem;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--color-bg-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ============================================
   Utility Classes
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

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

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section__tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-lg);
}

.section__title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.section__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn--lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px var(--color-primary-glow);
}

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

.btn--outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary-light);
}

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

.btn--white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-fixed);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-base);
}

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

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: var(--font-size-lg);
}

.logo-text .accent {
    color: var(--color-primary-light);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav__link {
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: var(--spacing-sm) 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

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

.nav__link:hover::after {
    width: 100%;
}

.nav__link--cta {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
}

.nav__link--cta::after {
    display: none;
}

.nav__link--cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.nav__toggle,
.nav__close {
    display: none;
    color: var(--color-text-primary);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-bg-card);
        border-left: 1px solid var(--color-border);
        padding: var(--spacing-4xl) var(--spacing-xl);
        transition: var(--transition-slow);
        z-index: var(--z-modal);
    }
    
    .nav__menu.show-menu {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }
    
    .nav__link--cta {
        width: 100%;
        text-align: center;
        margin-top: var(--spacing-lg);
    }
    
    .nav__toggle,
    .nav__close {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
    }
    
    .nav__close {
        position: absolute;
        top: var(--spacing-lg);
        right: var(--spacing-lg);
    }
}

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

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero__particles {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 20%, var(--color-primary-glow) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 60%);
    animation: pulseGlow 8s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero__title {
    font-size: clamp(var(--font-size-4xl), 6vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-xl);
}

.hero__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 540px;
}

.hero__stats {
    display: flex;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat__number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.hero__image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__image-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.hero__image-wrapper img {
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.hero__image-glow {
    position: absolute;
    inset: -20%;
    background: var(--gradient-glow);
    filter: blur(60px);
    z-index: -1;
    animation: floatGlow 6s ease-in-out infinite;
}

@keyframes floatGlow {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

.hero__scroll {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-indicator::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-primary-light);
    border-radius: var(--radius-full);
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(12px); }
}

/* ============================================
   Benefits Section
   ============================================ */
.benefits__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.benefit-card {
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-base);
}

.benefit-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
    transform: translateY(-8px);
}

.benefit-card:hover::before {
    transform: scaleX(1);
}

.benefit-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-lg);
}

.benefit-card__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.benefit-card__description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   Features Section
   ============================================ */
.features__grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4xl);
}

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.feature-block--reverse {
    direction: rtl;
}

.feature-block--reverse > * {
    direction: ltr;
}

.feature-block__tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-lg);
}

.feature-block__title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-3xl));
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.feature-block__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.feature-block__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-block__list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text-secondary);
}

.feature-block__list li::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--color-primary-light);
    border-radius: 50%;
    flex-shrink: 0;
}

.feature-block__image {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.feature-block__image img {
    width: 100%;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-slow);
}

.feature-block__image:hover img {
    transform: scale(1.02);
}

/* ============================================
   Services Section
   ============================================ */
.services {
    background: var(--color-bg-gradient);
}

.services__flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg);
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    min-width: 120px;
}

.flow-step__number {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.flow-step__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.flow-line {
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
}

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

.service-card {
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
    position: relative;
}

.service-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
    transform: translateY(-4px);
}

.service-card--featured {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(37, 99, 235, 0.05) 100%);
}

.service-card__number {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-text-muted);
}

.service-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-lg);
}

.service-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.service-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.service-card__tag {
    display: inline-block;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.services__cta {
    text-align: center;
    margin-top: var(--spacing-3xl);
}

/* ============================================
   About Section
   ============================================ */
.about__grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about__title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-xl);
}

.about__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.about__partnership {
    padding: var(--spacing-lg);
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.about__partnership p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.about__partnership strong {
    color: var(--color-primary-light);
}

.about__certifications {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.certification {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

.certification svg {
    color: var(--color-success);
    flex-shrink: 0;
}

.about__image {
    display: flex;
    justify-content: center;
}

.about__image-card {
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-lg);
    text-align: center;
}

.about__image-card img {
    width: 100%;
    max-width: 280px;
    border-radius: var(--radius-xl);
    margin: 0 auto var(--spacing-lg);
}

.about__author h4 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.about__author p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
    padding: var(--spacing-3xl) 0;
}

.cta__card {
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-3xl);
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-2xl);
    align-items: center;
}

.cta__title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.cta__description {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.cta__features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.cta__feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
}

.cta__visual {
    position: relative;
    width: 200px;
    height: 200px;
}

.cta__circles {
    position: absolute;
    inset: 0;
}

.cta__circle {
    position: absolute;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.cta__circle--1 {
    width: 100%;
    height: 100%;
    animation: rotateCirle 20s linear infinite;
}

.cta__circle--2 {
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
    animation: rotateCirle 15s linear infinite reverse;
}

.cta__circle--3 {
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
    animation: rotateCirle 10s linear infinite;
}

@keyframes rotateCirle {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   WhatsApp Float Button
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 60px;
    height: 60px;
    background: var(--color-whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: var(--z-fixed);
    transition: var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

.whatsapp-float__tooltip {
    position: absolute;
    right: calc(100% + var(--spacing-md));
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: var(--transition-base);
}

.whatsapp-float:hover .whatsapp-float__tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__tagline {
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
}

.footer__links h4,
.footer__contact h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.footer__links ul,
.footer__contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer__links a,
.footer__contact a {
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer__links a:hover,
.footer__contact a:hover {
    color: var(--color-primary-light);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.footer__legal a {
    color: var(--color-text-secondary);
}

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

.footer__credits {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

.footer__credits a {
    color: var(--color-primary-light);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero__content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero__stats {
        justify-content: center;
    }
    
    .hero__actions {
        justify-content: center;
    }
    
    .hero__image {
        order: -1;
        margin-bottom: var(--spacing-2xl);
    }
    
    .hero__image-wrapper img {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .benefits__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-block,
    .feature-block--reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    
    .feature-block__image {
        order: -1;
    }
    
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about__image {
        order: -1;
        margin-bottom: var(--spacing-2xl);
    }
    
    .about__certifications {
        align-items: center;
    }
    
    .cta__card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cta__features {
        justify-content: center;
    }
    
    .cta__visual {
        display: none;
    }
    
    .footer__grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer__brand {
        grid-column: span 2;
        text-align: center;
    }
}

/* Mobile */
@media (max-width: 640px) {
    :root {
        --container-padding: 1rem;
    }
    
    .section {
        padding: var(--spacing-3xl) 0;
    }
    
    .hero__stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .hero__actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero__actions .btn {
        width: 100%;
    }
    
    .hero__scroll {
        display: none;
    }
    
    .benefits__grid {
        grid-template-columns: 1fr;
    }
    
    .services__flow {
        flex-direction: column;
    }
    
    .flow-line {
        width: 2px;
        height: 20px;
    }
    
    .services__grid {
        grid-template-columns: 1fr;
    }
    
    .cta__card {
        padding: var(--spacing-xl);
    }
    
    .cta__features {
        flex-direction: column;
        align-items: center;
    }
    
    .footer__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer__brand {
        grid-column: auto;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .whatsapp-float {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
        width: 56px;
        height: 56px;
    }
    
    .whatsapp-float__tooltip {
        display: none;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Print Styles */
@media print {
    .header,
    .whatsapp-float,
    .hero__scroll,
    .cta {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .section {
        padding: 1rem 0;
    }
}