/* ============================================
   1. RESET & VARIABLES
   ============================================ */

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

:root {
    /* Cores Primárias - Cyberpunk/Neon */
    --color-bg-primary: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-card: #1a1a1a;
    --color-primary: #8B00FF;
    --color-secondary: #00FFFF;
    --color-accent: #FF00FF;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #B0B0B0;
    --color-text-muted: #666666;

    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* Tipografia */
    --font-heading: 'Orbitron', 'Rajdhani', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --line-height-base: 1.6;
    --line-height-tight: 1.2;

    /* Efeitos */
    --glow-purple: 0 0 20px rgba(139, 0, 255, 0.5), 0 0 40px rgba(139, 0, 255, 0.3);
    --glow-cyan: 0 0 20px rgba(0, 255, 255, 0.5), 0 0 40px rgba(0, 255, 255, 0.3);
    --glow-magenta: 0 0 20px rgba(255, 0, 255, 0.5), 0 0 40px rgba(255, 0, 255, 0.3);
    --shadow-neon: 0 0 10px currentColor, 0 0 20px currentColor, 0 0 30px currentColor;

    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* ============================================
   2. BASE STYLES
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, var(--font-size-5xl));
}

h2 {
    font-size: clamp(1.75rem, 4vw, var(--font-size-4xl));
}

h3 {
    font-size: clamp(1.5rem, 3vw, var(--font-size-3xl));
}

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

ul {
    list-style: none;
}

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

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

input, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   3. LAYOUT
   ============================================ */

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

/* ============================================
   4. COMPONENTS
   ============================================ */

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-base);
    border-bottom: 1px solid transparent;
}

.header--scrolled {
    background-color: rgba(0, 0, 0, 0.95);
    border-bottom-color: var(--color-primary);
    box-shadow: var(--glow-purple);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    gap: var(--spacing-lg);
}

.nav__logo {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 900;
    color: var(--color-text-primary);
}

.logo-text {
    text-shadow: var(--glow-purple);
}

.logo-accent {
    color: var(--color-secondary);
    text-shadow: var(--glow-cyan);
}

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

.nav__link {
    color: var(--color-text-secondary);
    font-weight: 600;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: var(--transition-base);
}

.nav__link:hover {
    color: var(--color-text-primary);
    text-shadow: 0 0 10px var(--color-primary);
}

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

.nav__cta {
    display: flex;
    align-items: center;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav__toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-base);
    box-shadow: 0 0 5px var(--color-primary);
}

.nav__toggle--active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid;
    border-radius: 4px;
    transition: var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-color: var(--color-primary);
    color: var(--color-text-primary);
    box-shadow: var(--glow-purple);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon);
    text-shadow: 0 0 10px var(--color-text-primary);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--secondary {
    background: transparent;
    border-color: var(--color-secondary);
    color: var(--color-secondary);
    box-shadow: var(--glow-cyan);
}

.btn--secondary:hover {
    background: var(--color-secondary);
    color: var(--color-bg-primary);
    transform: translateY(-2px);
}

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

.btn--full {
    width: 100%;
}

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

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero__grid {
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(139, 0, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 0, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

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

.hero__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.title-line {
    display: block;
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.title-line:nth-child(1) {
    animation-delay: 0.2s;
}

.title-line:nth-child(2) {
    animation-delay: 0.4s;
}

.title-line--accent {
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

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

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.hero__cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.8s forwards;
    opacity: 0;
}

.hero__stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-md);
    animation: fadeInUp 0.8s ease 1s forwards;
    opacity: 0;
}

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

.stat__number {
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: 900;
    color: var(--color-secondary);
    text-shadow: var(--glow-cyan);
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Chatbot Visual */
.hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.chatbot-visual {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    position: relative;
}

.chatbot-screen {
    width: 100%;
    height: 100%;
    background: var(--color-bg-card);
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    box-shadow: var(--glow-purple);
    overflow: hidden;
}

.chatbot-message {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    animation: messageSlide 0.5s ease forwards;
    opacity: 0;
}

.chatbot-message--bot {
    animation-delay: 1.2s;
}

.chatbot-message--user {
    flex-direction: row-reverse;
    animation-delay: 1.8s;
}

.chatbot-message--bot:last-of-type {
    animation-delay: 2.4s;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    flex-shrink: 0;
    box-shadow: 0 0 10px var(--color-primary);
}

.message-content {
    background: var(--color-bg-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 12px;
    border: 1px solid rgba(139, 0, 255, 0.3);
    max-width: 70%;
}

.message-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    line-height: 1.5;
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--spacing-sm);
    animation: fadeInUp 0.5s ease 3s forwards;
    opacity: 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-secondary);
    animation: typing 1.4s ease-in-out infinite;
    box-shadow: 0 0 5px var(--color-secondary);
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

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

.section-title {
    margin-bottom: var(--spacing-md);
    text-shadow: var(--glow-purple);
}

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

/* Features Section */
.features {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-secondary);
}

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

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(139, 0, 255, 0.3);
    border-radius: 12px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 0, 255, 0.1), transparent);
    transition: var(--transition-slow);
}

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

.feature-card:hover::before {
    left: 100%;
}

.feature-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-box {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    position: relative;
}

.icon-box--purple {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    box-shadow: var(--glow-purple);
}

.icon-box--cyan {
    background: linear-gradient(135deg, var(--color-secondary), #00BFFF);
    box-shadow: var(--glow-cyan);
}

.icon-box--magenta {
    background: linear-gradient(135deg, var(--color-accent), #FF1493);
    box-shadow: var(--glow-magenta);
}

.feature-card__title {
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
}

.feature-card__description {
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
}

/* About Section */
.about {
    padding: var(--spacing-xl) 0;
}

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

.about__text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
}

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

.about__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text-primary);
}

.list-icon {
    width: 12px;
    height: 12px;
    background: var(--color-secondary);
    border-radius: 50%;
    box-shadow: var(--glow-cyan);
    flex-shrink: 0;
}

.about__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-box {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    background: var(--color-bg-card);
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--glow-purple);
}

.visual-grid {
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(139, 0, 255, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 0, 255, 0.2) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: gridMove 15s linear infinite;
}

/* Testimonials Section */
.testimonials {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-secondary);
}

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

.testimonial-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(139, 0, 255, 0.3);
    border-radius: 12px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: var(--transition-base);
}

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

.testimonial-card__stars {
    color: var(--color-secondary);
    font-size: var(--font-size-lg);
    text-shadow: var(--glow-cyan);
}

.testimonial-card__text {
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
    flex-grow: 1;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    flex-shrink: 0;
    box-shadow: 0 0 10px var(--color-primary);
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.author-name {
    font-weight: 700;
    color: var(--color-text-primary);
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 0;
}

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

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
}

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

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

.detail-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    box-shadow: var(--glow-purple);
    flex-shrink: 0;
}

.detail-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.detail-value {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
}

/* Form */
.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

.form-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.form-input,
.form-textarea {
    background: var(--color-bg-card);
    border: 1px solid rgba(139, 0, 255, 0.3);
    border-radius: 8px;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    font-family: inherit;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(139, 0, 255, 0.2);
}

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

/* Footer */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(139, 0, 255, 0.3);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

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

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

.footer__description {
    color: var(--color-text-secondary);
    line-height: var(--line-height-base);
}

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

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

.footer__title {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

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

.footer__link {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
}

.footer__link:hover {
    color: var(--color-secondary);
    text-shadow: 0 0 5px var(--color-secondary);
    transform: translateX(5px);
}

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

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(139, 0, 255, 0.3);
    border-radius: 8px;
    color: var(--color-text-secondary);
    transition: var(--transition-base);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.social-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: var(--glow-purple);
    transform: translateY(-3px);
}

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(139, 0, 255, 0.2);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   5. ANIMATIONS
   ============================================ */

/* Additional animations already defined above */

/* ============================================
   6. RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__visual {
        order: -1;
    }

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

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

    .about__visual {
        order: -1;
    }

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

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

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

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }

    .nav__menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--color-bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: var(--spacing-xl) 0;
        gap: var(--spacing-lg);
        transition: var(--transition-base);
        border-top: 1px solid rgba(139, 0, 255, 0.3);
    }

    .nav__menu--active {
        left: 0;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__cta {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 120px 0 var(--spacing-xl);
    }

    .hero__stats {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero__cta {
        justify-content: center;
    }

    .features__grid,
    .testimonials__grid {
        grid-template-columns: 1fr;
    }

    .footer__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 320px) {
    .hero__title {
        font-size: var(--font-size-3xl);
    }

    .btn--large {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
}