/* ========================================
   Z8 Tecnologias - Corporate Website
   ======================================== */

/* CSS Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent: #06b6d4;
    --dark: #0a0a0f;
    --dark-100: #111118;
    --dark-200: #18181f;
    --dark-300: #1f1f28;
    --dark-400: #2a2a35;
    --gray-100: #f8fafc;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-dark: linear-gradient(180deg, var(--dark) 0%, var(--dark-200) 100%);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.3);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --transition: all 0.3s ease;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--dark);
    color: var(--gray-200);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
    color: var(--gray-400);
}

strong {
    color: var(--white);
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md), 0 0 20px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(37, 99, 235, 0.3);
}

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

.btn-full {
    width: 100%;
}

.btn-nav {
    background: transparent;
    border: 1px solid var(--dark-400);
    color: var(--white);
    padding: 10px 20px;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-z8 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    color: var(--white);
    font-weight: 800;
}

.logo-text {
    color: var(--white);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu a {
    color: var(--gray-400);
    font-size: 0.9375rem;
    font-weight: 500;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        var(--dark);
    z-index: -2;
}

.hero-gradient {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to top, var(--dark), transparent);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-400);
    margin-bottom: 40px;
    max-width: 600px;
}

/* Sections */
.section {
    padding: 100px 0;
    position: relative;
}

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

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 50px;
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-title {
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.section-about {
    background: var(--dark-100);
}

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

.about-text {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-lead {
    font-size: 1.25rem;
    color: var(--gray-300);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-item {
    padding: 24px;
    background: var(--dark-200);
    border: 1px solid var(--dark-400);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.stat-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary-light);
    margin-bottom: 16px;
}

.stat-item h4 {
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Authority Section */
.section-authority {
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-100) 100%);
    text-align: center;
}

.authority-content {
    max-width: 700px;
    margin: 0 auto;
}

.authority-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.badge-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    color: var(--white);
}

.badge-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.authority-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 24px;
}

.meta-blue {
    color: #0081fb;
}

.authority-text {
    font-size: 1.125rem;
    color: var(--gray-400);
    margin-bottom: 40px;
}

.authority-logos {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: var(--dark-200);
    border: 1px solid var(--dark-400);
    border-radius: var(--radius-lg);
    color: var(--gray-400);
    transition: var(--transition);
}

.partner-logo:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    transform: translateY(-4px);
}

/* Solutions Section */
.section-solutions {
    background: var(--dark);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.solution-card {
    padding: 40px;
    background: var(--dark-100);
    border: 1px solid var(--dark-300);
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.solution-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.solution-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    color: var(--white);
    margin-bottom: 24px;
}

.solution-title {
    margin-bottom: 16px;
}

.solution-desc {
    margin-bottom: 24px;
    color: var(--gray-400);
}

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

.solution-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-300);
    font-size: 0.9375rem;
}

.solution-features li::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* Product Section - Z8 Multi */
.section-product {
    background: linear-gradient(180deg, var(--dark-100) 0%, var(--dark) 100%);
    overflow: hidden;
}

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

.product-info .section-tag {
    margin-bottom: 16px;
}

.product-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 8px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-tagline {
    font-size: 1.25rem;
    color: var(--gray-400);
    margin-bottom: 24px;
}

.product-desc {
    font-size: 1.0625rem;
    color: var(--gray-400);
    margin-bottom: 32px;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-200);
}

.product-features svg {
    color: var(--accent);
    flex-shrink: 0;
}

.product-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.product-mockup {
    width: 100%;
    max-width: 480px;
    background: var(--dark-200);
    border: 1px solid var(--dark-400);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.mockup-header {
    display: flex;
    gap: 8px;
    padding: 16px 20px;
    background: var(--dark-300);
    border-bottom: 1px solid var(--dark-400);
}

.mockup-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--dark-400);
}

.mockup-dot:first-child { background: #ff5f57; }
.mockup-dot:nth-child(2) { background: #febc2e; }
.mockup-dot:nth-child(3) { background: #28c840; }

.mockup-content {
    display: flex;
    height: 320px;
}

.mockup-sidebar {
    width: 60px;
    background: var(--dark-300);
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mockup-menu-item {
    width: 100%;
    height: 36px;
    background: var(--dark-400);
    border-radius: var(--radius-sm);
}

.mockup-menu-item.active {
    background: var(--primary);
}

.mockup-main {
    flex: 1;
    padding: 20px;
}

.mockup-chat {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-item {
    height: 40px;
    border-radius: var(--radius-lg);
    max-width: 80%;
}

.chat-item.received {
    background: var(--dark-400);
    align-self: flex-start;
    width: 70%;
}

.chat-item.sent {
    background: var(--primary);
    align-self: flex-end;
    width: 60%;
}

.product-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    pointer-events: none;
}

/* Audience Section */
.section-audience {
    background: var(--dark);
}

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

.audience-item {
    padding: 32px;
    background: var(--dark-100);
    border: 1px solid var(--dark-300);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

.audience-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.audience-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    color: var(--primary-light);
    margin-bottom: 20px;
}

.audience-item h4 {
    margin-bottom: 8px;
}

.audience-item p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Contact Section */
.section-contact {
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-200) 100%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-title {
    margin-bottom: 16px;
}

.contact-text {
    font-size: 1.125rem;
    color: var(--gray-400);
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--gray-300);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--dark-300);
    border-radius: var(--radius-md);
    color: var(--primary-light);
}

.contact-form-wrapper {
    padding: 40px;
    background: var(--dark-100);
    border: 1px solid var(--dark-300);
    border-radius: var(--radius-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-300);
}

.form-group input,
.form-group textarea {
    padding: 14px 16px;
    background: var(--dark-200);
    border: 1px solid var(--dark-400);
    border-radius: var(--radius-md);
    color: var(--white);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-600);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* Footer */
.footer {
    background: var(--dark-200);
    padding: 60px 0 24px;
    border-top: 1px solid var(--dark-300);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.9375rem;
    color: var(--gray-500);
    max-width: 300px;
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-links li {
    font-size: 0.9375rem;
    color: var(--gray-500);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--dark-400);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.footer-tagline {
    color: var(--gray-500);
}

/* Responsive */
@media (max-width: 1024px) {
    .about-content,
    .product-content,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

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

    .product-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        background: var(--dark);
        padding: 40px 24px;
        gap: 24px;
        transform: translateX(100%);
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

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

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

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

    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .section {
        padding: 60px 0;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

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

    .solution-card {
        padding: 24px;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .btn-lg {
        padding: 14px 24px;
    }
}

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

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Me Atende Section */
.section-meatende {
    background: var(--dark);
}

.section-meatende .product-content {
    grid-template-columns: 1fr 1fr;
}

.section-meatende .product-visual {
    order: -1;
}

/* Cobrança Express Section */
.section-cobranca {
    background: var(--dark-100);
}

/* Dashboard Mockup */
.mockup-dashboard {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 8px;
}

.dashboard-card {
    height: 50px;
    background: var(--dark-400);
    border-radius: var(--radius-md);
}

.dashboard-card:first-child {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    opacity: 0.7;
}

.dashboard-chart {
    height: 100px;
    background: var(--dark-400);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

.dashboard-chart::after {
    content: '';
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    height: 40px;
    background: linear-gradient(90deg, 
        var(--primary) 0%, 
        var(--primary) 20%, 
        transparent 20%, 
        transparent 25%,
        var(--accent) 25%,
        var(--accent) 50%,
        transparent 50%,
        transparent 55%,
        var(--primary) 55%,
        var(--primary) 75%,
        transparent 75%
    );
    opacity: 0.5;
    border-radius: var(--radius-sm);
}

/* Product Note */
.product-note {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 24px;
    padding: 12px 16px;
    background: rgba(37, 99, 235, 0.05);
    border-left: 3px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.product-note em {
    font-style: normal;
}

@media (max-width: 1024px) {
    .section-meatende .product-visual {
        order: -1;
    }
}

/* Contact Address */
.contact-address {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-address span {
    font-size: 0.95rem;
    color: var(--gray-300);
    line-height: 1.5;
}

.contact-address span:first-child {
    font-weight: 500;
    color: var(--white);
}

/* Footer Legal */
.footer-cnpj {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: 8px;
}

.footer-legal {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
    font-size: 0.875rem;
}

.footer-legal a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-legal span {
    color: var(--gray-600);
}