/* ============================================
   INVENT DIGITAL - MODERN STYLES
   Mantendo as cores da empresa:
   - Primary: #16c9f6, #3ccdbb, #50d1c0
   - Dark: #2d3441
   - Light: #f7f7f9
   ============================================ */

/* CSS Variables */
:root {
    /* Brand Colors */
    --color-primary: #50d1c0;
    --color-primary-light: #3ccdbb;
    --color-primary-dark: #16c9f6;
    --color-accent: #2fccd0;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #16c9f6 0%, #3ccdbb 50%, #50d1c0 100%);
    --gradient-hero: linear-gradient(135deg, rgba(22, 201, 246, 0.95) 0%, rgba(60, 205, 187, 0.9) 50%, rgba(80, 209, 192, 0.85) 100%);
    --gradient-dark: linear-gradient(135deg, #2d3441 0%, #1a1f2a 100%);
    
    /* Neutral Colors */
    --color-dark: #2d3441;
    --color-dark-light: #3a4352;
    --color-gray-100: #f7f7f9;
    --color-gray-200: #e8e8ec;
    --color-gray-300: #d1d5db;
    --color-gray-600: #6b7280;
    --color-gray-800: #1f2937;
    --color-white: #ffffff;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 40px rgba(80, 209, 192, 0.3);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 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;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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);
    overflow-x: hidden;
}

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

/* Previne CLS - Aspect ratio para imagens */
img[width][height] {
    aspect-ratio: attr(width) / attr(height);
}

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0;
    transition: all var(--transition-base);
    background: var(--gradient-primary);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    height: 72px;
}

.navbar.scrolled {
    background: var(--gradient-primary);
    box-shadow: var(--shadow-lg);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    z-index: 1001;
}

.navbar-brand img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
    transition: transform var(--transition-base);
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: var(--spacing-2);
}

.navbar-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-base);
    border-radius: 2px;
}

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

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

.navbar-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.navbar-menu a {
    color: var(--color-white);
    font-weight: 500;
    font-size: var(--font-size-sm);
    position: relative;
    padding: var(--spacing-2) 0;
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-white);
    transition: width var(--transition-base);
    border-radius: 2px;
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
    width: 100%;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(80, 209, 192, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(80, 209, 192, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

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

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

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

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

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

.btn-block {
    width: 100%;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: visible;
    padding-top: 72px;
}

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

.gradient-overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.pattern-overlay {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
    padding: var(--spacing-24) 0;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
}

.gradient-text {
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-8);
    max-width: 500px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 260px;
    height: 520px;
    background: var(--color-dark);
    border-radius: 35px;
    padding: 12px;
    box-shadow: 
        0 50px 100px -20px rgba(0, 0, 0, 0.4),
        0 30px 60px -30px rgba(0, 0, 0, 0.3),
        inset 0 0 0 2px rgba(255, 255, 255, 0.1);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--color-dark);
    border-radius: 28px;
    overflow: hidden;
    position: relative;
}

.screen-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.screen-slider img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    opacity: 0;
    transition: opacity 0.8s ease;
    background: var(--color-dark);
}

.screen-slider img.active {
    opacity: 1;
}

.phone-reflection {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
    border-radius: 40px;
    pointer-events: none;
}

/* Floating Cards */
.floating-cards {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.float-card {
    position: absolute;
    background: var(--color-white);
    padding: var(--spacing-3) var(--spacing-5);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-800);
    animation: float 3s ease-in-out infinite;
}

.float-card i {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

.card-1 {
    top: 20%;
    left: -20px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 25%;
    right: -10px;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--color-white);
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-white);
    border-radius: 2px;
    animation: scroll 1.5s ease-in-out infinite;
}

@keyframes scroll {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-16);
}

.section-header.light {
    color: var(--color-white);
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-4);
    background: rgba(80, 209, 192, 0.15);
    color: #0d7a6e;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-4);
    border: 1px solid rgba(80, 209, 192, 0.3);
}

.light .section-tag {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.light .section-title {
    color: var(--color-white);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.7;
}

.light .section-subtitle {
    color: rgba(255, 255, 255, 0.85);
}

/* ============================================
   FEATURES CARDS
   ============================================ */
.features-cards {
    padding: var(--spacing-24) 0;
    background: var(--color-white);
    margin-top: -60px;
    position: relative;
    z-index: 10;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
}

.feature-card {
    background: var(--color-white);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-200);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
    font-size: var(--font-size-2xl);
    color: var(--color-white);
    box-shadow: 0 10px 30px rgba(80, 209, 192, 0.3);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-3);
}

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

/* ============================================
   HOW WE WORK
   ============================================ */
.how-we-work {
    padding: var(--spacing-24) 0;
    background: var(--color-gray-100);
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-16);
}

.work-item {
    text-align: center;
    padding: var(--spacing-6);
}

.work-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-6);
    padding: var(--spacing-4);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.work-item:hover .work-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.work-icon img {
    max-width: 60%;
    max-height: 60%;
    object-fit: contain;
}

.work-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-3);
}

.work-item p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
}

.work-banner {
    text-align: center;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    max-width: 900px;
    margin: 0 auto;
}

.work-banner img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    object-position: center;
    background: var(--color-gray-200);
}

/* ============================================
   DIAGNÓSTICO SECTION
   ============================================ */
.diagnostico {
    padding: var(--spacing-24) 0;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.diagnostico::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.diagnostico-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-16);
    position: relative;
    z-index: 1;
}

.step-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    text-align: center;
    transition: all var(--transition-base);
}

.step-card:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-5px);
}

.step-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: rgba(255, 255, 255, 0.3);
    margin-bottom: var(--spacing-4);
    line-height: 1;
}

.step-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-3);
}

.step-card p {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.diagnostico-cta {
    text-align: center;
    position: relative;
    z-index: 1;
}

.diagnostico-cta .lead {
    font-size: var(--font-size-xl);
    color: var(--color-white);
    margin-bottom: var(--spacing-6);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    padding: var(--spacing-24) 0;
    background: var(--color-white);
}

.features-layout {
    display: grid;
    grid-template-columns: 1fr 300px 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-5);
    padding: var(--spacing-5);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-item:hover {
    background: var(--color-gray-100);
}

.features-list.left .feature-item {
    flex-direction: row-reverse;
    text-align: right;
}

.feature-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-2);
}

.feature-content p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
}

.feature-icon {
    width: 60px;
    height: 60px;
    min-width: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--font-size-xl);
    box-shadow: 0 8px 20px rgba(80, 209, 192, 0.3);
}

/* Phone Frame */
.features-phone {
    position: relative;
    display: flex;
    justify-content: center;
}

.phone-frame {
    position: relative;
    width: 260px;
    max-width: 100%;
}

.phone-base {
    width: 100%;
    height: auto;
}

.screen-preview {
    position: absolute;
    top: 11%;
    left: 6.5%;
    width: 87%;
    height: 78%;
    overflow: hidden;
    border-radius: 4px;
}

.screen-preview img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center top;
    opacity: 0;
    transition: opacity 0.5s ease;
    background: #f5f5f5;
}

.screen-preview img.active {
    opacity: 1;
}

/* ============================================
   SCREENSHOTS SECTION
   ============================================ */
.screenshots {
    padding: var(--spacing-24) 0;
    background: var(--color-gray-100);
    overflow: hidden;
}

.screenshots-slider {
    position: relative;
    padding: 0 var(--spacing-12);
}

.screenshots-track {
    display: flex;
    gap: var(--spacing-6);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: var(--spacing-4) 0;
}

.screenshots-track::-webkit-scrollbar {
    display: none;
}

.screenshot-item {
    flex: 0 0 280px;
    scroll-snap-align: center;
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.screenshot-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.screenshot-item img {
    width: 100%;
    height: 480px;
    object-fit: contain;
    object-position: center;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
}

.screenshot-overlay {
    position: absolute;
    inset: 0;
    background: rgba(45, 52, 65, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.screenshot-item:hover .screenshot-overlay {
    opacity: 1;
}

.screenshot-overlay i {
    color: var(--color-white);
    font-size: var(--font-size-3xl);
}

.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: var(--color-white);
    border: none;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-800);
    transition: all var(--transition-base);
    z-index: 10;
}

.slider-nav:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.slider-nav.prev { left: 0; }
.slider-nav.next { right: 0; }

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials {
    padding: var(--spacing-24) 0;
    background: var(--color-white);
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-item {
    display: none;
}

.testimonial-item.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.testimonial-content {
    text-align: center;
    padding: var(--spacing-8);
}

.quote-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-8);
    box-shadow: var(--shadow-glow);
}

.quote-icon i {
    color: var(--color-white);
    font-size: var(--font-size-2xl);
}

.testimonial-text {
    font-size: var(--font-size-xl);
    color: var(--color-gray-600);
    line-height: 1.8;
    font-style: italic;
    margin-bottom: var(--spacing-8);
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
}

.author-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info {
    text-align: left;
}

.author-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-800);
}

.author-info span {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.testimonials-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3);
    margin-top: var(--spacing-8);
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: var(--color-gray-300);
    cursor: pointer;
    transition: all var(--transition-base);
}

.nav-dot.active {
    background: var(--color-primary);
    width: 30px;
    border-radius: 6px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--spacing-24) 0;
    background: var(--color-gray-100);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-16);
    align-items: start;
}

.contact-info h2 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-gray-800);
    margin: var(--spacing-4) 0 var(--spacing-4);
}

.contact-info > p {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-8);
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--font-size-lg);
    box-shadow: 0 8px 20px rgba(80, 209, 192, 0.3);
}

.info-content span {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-1);
}

.info-content a,
.info-content p {
    font-weight: 600;
    color: var(--color-gray-800);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-white);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-800);
}

.form-control {
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    background: var(--color-gray-100);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-white);
    box-shadow: 0 0 0 4px rgba(80, 209, 192, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   MAP SECTION
   ============================================ */
.map-section {
    line-height: 0;
}

.map-section iframe {
    filter: grayscale(20%);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-16) 0 var(--spacing-6);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-12);
}

.footer-brand img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
    margin-bottom: var(--spacing-4);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-6);
}

.social-links {
    display: flex;
    gap: var(--spacing-3);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.footer-links h2,
.footer-newsletter h2 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-5);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.85);
    transition: color var(--transition-fast);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.footer-links a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.footer-newsletter p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-sm);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-2);
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    border: none;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-family: var(--font-family);
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-form button {
    width: 44px;
    height: 44px;
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--color-white);
    cursor: pointer;
    transition: all var(--transition-base);
}

.newsletter-form button:hover {
    background: var(--color-primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-6);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-sm);
}

.footer-bottom a {
    color: #6ee7e0;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.footer-bottom a:hover {
    color: var(--color-white);
    text-decoration: none;
}

/* ============================================
   WHATSAPP FLOAT BUTTON
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--font-size-2xl);
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all var(--transition-base);
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

@keyframes pulse-whatsapp {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1); }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .features-layout {
        grid-template-columns: 1fr 250px 1fr;
        gap: var(--spacing-8);
    }
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .work-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .diagnostico-steps {
        grid-template-columns: 1fr;
    }
    
    .features-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    
    .features-phone {
        order: -1;
        max-width: 250px;
        margin: 0 auto;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-12);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .navbar-toggle {
        display: flex;
    }
    
    .navbar-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--gradient-primary);
        flex-direction: column;
        justify-content: center;
        gap: var(--spacing-6);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .navbar-menu.active {
        opacity: 1;
        visibility: visible;
    }
    
    .navbar-menu a {
        font-size: var(--font-size-xl);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .work-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .info-item {
        justify-content: center;
    }
    
    .screenshot-item {
        flex: 0 0 240px;
    }
    
    .screenshot-item img {
        height: 400px;
    }
    
    .slider-nav {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-4xl: 1.875rem;
        --font-size-5xl: 2.25rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
    }
}

/* ============================================
   SKIP LINK (ACESSIBILIDADE)
   ============================================ */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    font-weight: 600;
    z-index: 10000;
    transition: top 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.skip-link:focus {
    top: 0;
    outline: none;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.hidden { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}