/* ============================================
   BnSystem - Modern Landing Page Styles
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --accent: #8b5cf6;
    
    --dark: #0f172a;
    --dark-light: #1e293b;
    --dark-lighter: #334155;
    
    --light: #f8fafc;
    --light-dark: #e2e8f0;
    --light-darker: #cbd5e1;
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    --gradient-dark: linear-gradient(180deg, var(--dark) 0%, var(--dark-light) 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Typography */
    --font-primary: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 24px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background-color: var(--dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* Selection */
::selection {
    background-color: var(--primary);
    color: white;
}

/* Container */
.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: var(--container-padding);
    box-sizing: border-box;
}

/* Sections - garantir que todas as seções não vazem */
section {
    width: 100%;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

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

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #22d3ee 0%, #6366f1 50%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary-light);
}

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

.btn-nav {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* ============================================
   Navbar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: var(--shadow-lg);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-img {
    height: 45px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    font-size: 1.8rem;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

.nav-links a:not(.btn):hover {
    color: var(--text-primary);
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

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

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

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 90% 50%, rgba(139, 92, 246, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 10% 80%, rgba(14, 165, 233, 0.15) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

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

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--primary-light);
    margin-bottom: 24px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 24px;
    line-height: 1.1;
    min-height: 3.5em;
}

.hero-title .gradient-text {
    display: inline-block;
    min-width: 280px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    overflow: hidden;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image-bg {
    position: absolute;
    inset: -20px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    opacity: 0.1;
    filter: blur(40px);
}

.hero-code-window {
    position: relative;
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.code-header {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--dark);
    border-bottom: 1px solid var(--dark-lighter);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot.red { background: #ff5f56; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #27ca40; }

.code-content {
    padding: 20px;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-keyword { color: #c792ea; }
.code-class { color: #22d3ee; }
.code-function { color: #82aaff; }
.code-string { color: #c3e88d; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
}

@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 Styles
   ============================================ */
section {
    padding: var(--section-padding);
}

.section-header {
    margin-bottom: 60px;
}

.section-header.center {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   Sobre Section
   ============================================ */
.sobre {
    background: var(--dark-light);
    overflow: hidden;
    width: 100%;
}

.sobre-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 80px;
    align-items: center;
}

.sobre-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 3/4;
    background: var(--dark);
    border: 2px solid var(--dark-lighter);
}

.image-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-muted);
}

.image-placeholder i {
    font-size: 4rem;
}

/* Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--dark);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.9rem;
    font-weight: 500;
    animation: float 3s ease-in-out infinite;
}

.floating-card i {
    font-size: 1.2rem;
    color: var(--primary-light);
}

.floating-card.card-1 {
    top: 10%;
    right: 0;
    animation-delay: 0s;
}

.floating-card.card-2 {
    bottom: 30%;
    left: 0;
    animation-delay: 0.5s;
}

.floating-card.card-3 {
    bottom: 5%;
    right: 0;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.sobre-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.sobre-text .lead {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.sobre-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.sobre-text strong {
    color: var(--text-primary);
}

.sobre-highlights {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 32px 0;
    padding: 24px;
    background: var(--dark);
    border-radius: var(--radius-lg);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.highlight-item i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary-light);
    font-size: 1.1rem;
}

.highlight-item strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.highlight-item span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.tech-stack {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.tech-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.tech-icons {
    display: flex;
    gap: 12px;
}

.tech-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-md);
    font-size: 1.3rem;
    color: var(--text-secondary);
    transition: var(--transition-base);
}

.tech-icon:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    transform: translateY(-3px);
}

/* ============================================
   Serviços Section
   ============================================ */
.servicos {
    overflow: hidden;
    width: 100%;
}

.servicos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.servico-card {
    position: relative;
    padding: 32px;
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

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

.servico-card.featured {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);
}

.servico-tag {
    position: absolute;
    top: -10px;
    right: 20px;
    padding: 6px 12px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.servico-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.servico-icon i {
    font-size: 1.8rem;
    color: var(--primary-light);
}

.servico-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.servico-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.servico-features {
    list-style: none;
}

.servico-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--dark-lighter);
}

.servico-features li:last-child {
    border-bottom: none;
}

.servico-features i {
    color: var(--success);
    font-size: 0.8rem;
}

/* ============================================
   Projetos Section
   ============================================ */
.projetos {
    background: var(--dark-light);
    overflow: hidden;
    width: 100%;
}

.projetos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.projeto-card {
    background: var(--dark);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
}

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

.projeto-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--dark-light) 0%, var(--dark-lighter) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.projeto-icon-bg {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
}

.projeto-icon-bg i {
    font-size: 2.5rem;
    color: var(--primary-light);
}

.projeto-overlay {
    position: absolute;
    top: 16px;
    left: 16px;
}

.projeto-category {
    padding: 6px 12px;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary-light);
}

.projeto-content {
    padding: 24px;
}

.projeto-content h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.projeto-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.projeto-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.projeto-tech span {
    padding: 4px 12px;
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.projeto-links {
    display: flex;
    gap: 16px;
}

.projeto-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-light);
    font-size: 0.9rem;
    font-weight: 500;
}

.projeto-link:hover {
    color: var(--primary);
}

.projetos-cta {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    background: var(--dark);
    border-radius: var(--radius-lg);
}

.projetos-cta p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: var(--gradient-primary);
    padding: 80px 0;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

/* ============================================
   Contato Section
   ============================================ */
.contato-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contato-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contato-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.contato-card:hover {
    border-color: var(--primary);
}

.contato-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.contato-icon i {
    font-size: 1.4rem;
    color: var(--primary-light);
}

.contato-details h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.contato-details p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contato-details a {
    font-size: 0.95rem;
    color: var(--primary-light);
}

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

/* Contact Form */
.contato-form {
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-group {
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--dark);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    cursor: pointer;
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--dark);
    padding: 80px 0 30px;
    border-top: 1px solid var(--dark-lighter);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin: 20px 0;
    max-width: 300px;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-light);
    border: 1px solid var(--dark-lighter);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

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

.footer-col li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.footer-col a,
.footer-col li {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-col i {
    color: var(--primary-light);
    font-size: 0.9rem;
    width: 16px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--dark-lighter);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   Back to Top
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

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

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .sobre-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .sobre-image {
        max-width: 350px;
        margin: 0 auto;
    }

    .servicos-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contato-container {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        background: var(--dark);
        padding: 40px;
        gap: 24px;
        transition: var(--transition-base);
        box-shadow: var(--shadow-xl);
    }

    .nav-links.active {
        right: 0;
    }

    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
    }

    .hero-title {
        font-size: 2.2rem;
        min-height: auto;
    }

    .hero-title .gradient-text {
        min-width: auto;
        display: block;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
        justify-content: center;
    }

    .stat {
        flex: 0 0 calc(50% - 10px);
    }

    .section-title {
        font-size: 1.8rem;
    }

    .servicos-grid {
        grid-template-columns: 1fr;
    }

    .projetos-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .sobre-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .sobre-text {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .sobre-text p,
    .sobre-text .lead {
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    .tech-stack {
        justify-content: center;
        width: 100%;
    }

    .tech-icons {
        flex-wrap: wrap;
        justify-content: center;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding-top: 70px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 6px 12px;
    }

    .hero-stats {
        gap: 15px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    .floating-card {
        display: none;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 0.9rem;
    }

    .servico-card {
        padding: 24px;
    }

    .contato-form {
        padding: 24px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .logo-img {
        height: 35px;
    }

    .sobre-image {
        max-width: 280px;
        margin: 0 auto;
    }

    .sobre-text h3 {
        font-size: 1.4rem;
    }

    .sobre-text .lead {
        font-size: 1rem;
    }

    .sobre-text p {
        font-size: 0.9rem;
    }

    .sobre-highlights {
        padding: 16px;
    }

    .highlight-item {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .tech-stack {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .tech-icons {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .tech-icon {
        width: 40px;
        height: 40px;
    }

    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}