/* ============================================
   M.MAKERZ — Design system & variáveis
   ============================================ */
:root {
    --color-bg: #0a0a0a;
    --color-bg-elevated: #121212;
    --color-bg-card: rgba(26, 26, 26, 0.92);
    --color-accent: #00ff9d;
    --color-accent-dim: rgba(0, 255, 157, 0.15);
    --color-accent-text: #00d47a;
    --color-cyan: #00c3ff;
    --color-text: #ffffff;
    --color-text-muted: rgba(255, 255, 255, 0.75);
    --color-border: rgba(0, 255, 157, 0.12);
    --gradient-accent: linear-gradient(135deg, var(--color-accent), var(--color-cyan));
    --gradient-subtle: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
    --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px var(--color-accent-dim);
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --grid-size: 32px;
    --header-h: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: transparent;
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

ul {
    list-style: none;
}

.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;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ============================================
   Background tech
   ============================================ */
.tech-background {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: var(--color-bg);
    overflow: hidden;
}

.tech-background::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background-image:
        linear-gradient(to right, var(--color-border) 1px, transparent 1px),
        linear-gradient(to bottom, var(--color-border) 1px, transparent 1px);
    background-size: var(--grid-size) var(--grid-size);
    opacity: 0.6;
    animation: gridScroll 25s linear infinite;
}

.tech-background::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% 0%, var(--color-accent-dim) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(0, 195, 255, 0.08) 0%, transparent 45%);
    pointer-events: none;
}

.tech-particles {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at center, var(--color-accent) 0%, transparent 1%);
    background-size: 4px 4px;
    background-position: 0 0;
    opacity: 0.4;
    animation: particleMove 15s linear infinite;
}

.energy-lines {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent 0,
        transparent 49%,
        var(--color-accent-dim) 50%,
        transparent 51%
    );
    background-size: 120px 100%;
    opacity: 0.35;
    animation: energyFlow 4s linear infinite;
}

.cyber-grid {
    display: none;
}

@keyframes gridScroll {
    0% { transform: translateY(0); }
    100% { transform: translateY(var(--grid-size)); }
}

@keyframes particleMove {
    0% { background-position: 0 0; }
    100% { background-position: 60px 60px; }
}

@keyframes energyFlow {
    0% { background-position: 0 0; }
    100% { background-position: 120px 0; }
}

/* ============================================
   Content wrapper
   ============================================ */
.content-wrapper {
    position: relative;
    z-index: 1;
    min-height: 100vh;
}

/* ============================================
   Loading screen
   ============================================ */
.loading-screen {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.loading-done {
    opacity: 0;
    visibility: hidden;
}

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.loading-bar {
    width: 280px;
    height: 4px;
    background: var(--color-bg-elevated);
    border-radius: 4px;
    overflow: hidden;
}

.loading-fill {
    display: block;
    height: 100%;
    width: 0;
    background: var(--gradient-accent);
    border-radius: 4px;
    animation: loadingFill 2s ease-out forwards;
}

@keyframes loadingFill {
    0% { width: 0; }
    100% { width: 100%; }
}

.loading-percentage {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-variant-numeric: tabular-nums;
}

.loading-text {
    font-size: 0.95rem;
    color: var(--color-accent);
    max-width: 90%;
    text-align: center;
}

/* ============================================
   Header & nav
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-h);
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition-base);
}

.header:has(.nav-menu.open) {
    box-shadow: var(--shadow-md);
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo {
    max-height: 52px;
    width: auto;
    transition: transform var(--transition-base), filter var(--transition-base);
    filter: drop-shadow(0 0 12px var(--color-accent-dim));
}

.logo:hover {
    transform: scale(1.03);
    filter: drop-shadow(0 0 18px rgba(0, 255, 157, 0.35));
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    padding: 10px;
}

.nav-toggle span {
    display: block;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.header.menu-open .nav-toggle span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.header.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
.header.menu-open .nav-toggle span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-menu a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: var(--space-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

.nav-menu a:hover,
.nav-menu a:focus-visible {
    color: var(--color-accent);
}

.nav-menu a:hover::after,
.nav-menu a:focus-visible::after {
    width: 100%;
}

/* ============================================
   Sections (scroll reveal)
   ============================================ */
.section {
    padding: calc(var(--header-h) + var(--space-3xl)) var(--space-lg) var(--space-3xl);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Hero
   ============================================ */
.section-hero {
    text-align: center;
    padding-top: calc(var(--header-h) + 6rem);
}

.hero-content {
    max-width: 720px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: var(--space-md);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.2vw, 1.25rem);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-2xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-base), opacity var(--transition-fast);
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-bg);
    border: none;
}

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

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

.btn-outline:hover {
    background: var(--color-accent-dim);
    transform: translateY(-2px);
}

.hero-image {
    margin: 0 auto;
    opacity: 0.9;
    filter: drop-shadow(0 0 30px var(--color-accent-dim));
}

/* ============================================
   Sobre
   ============================================ */
.section-sobre {
    background: linear-gradient(180deg, transparent 0%, var(--color-bg-elevated) 8%, var(--color-bg-elevated) 92%, transparent 100%);
}

.sobre-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.sobre-img {
    position: relative;
}

.sobre-img img {
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.sobre-texto h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.sobre-texto p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    font-size: 0.98rem;
}

.sobre-texto p:last-child {
    margin-bottom: 0;
}

/* ============================================
   Serviços / Slider
   ============================================ */
.section-servicos .section-title {
    margin-bottom: var(--space-2xl);
}

.slider-wrapper {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
}

.slider {
    position: relative;
    min-height: 340px;
    overflow: hidden;
}

.slide {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
    padding: var(--space-lg);
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.45s ease, transform 0.45s ease;
    pointer-events: none;
}

.slide.active {
    position: relative;
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

.slide-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    text-align: center;
}

.slide-empty-msg {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

.slide-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 16/10;
    background: var(--color-bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-image a.slide-image-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.slide-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.slide-image img.slide-img-placeholder {
    background: var(--color-bg-elevated);
    min-height: 200px;
    object-fit: contain;
}

.slide-content h3 {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.slide-content .componentes {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.slide-content .componentes li {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.slide-content .componentes strong {
    color: var(--color-text);
    margin-right: 0.35em;
}

.slider-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.slider-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: var(--gradient-accent);
    color: var(--color-bg);
    font-size: 1.25rem;
    line-height: 1;
    transition: transform var(--transition-fast), box-shadow var(--transition-base);
}

.slider-btn:hover {
    transform: scale(1.08);
    box-shadow: var(--shadow-glow);
}

.slider-dots {
    display: flex;
    gap: var(--space-sm);
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: var(--color-bg-elevated);
    cursor: pointer;
    transition: transform var(--transition-base), background var(--transition-base);
}

.slider-dot:hover {
    background: var(--color-accent-dim);
}

.slider-dot.active {
    background: var(--color-accent);
    transform: scale(1.25);
}

/* ============================================
   Section title global
   ============================================ */
.section-title {
    text-align: center;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--gradient-accent);
    margin: var(--space-md) auto 0;
    border-radius: 2px;
}

/* ============================================
   Contato / Form
   ============================================ */
.section-contato {
    background: linear-gradient(180deg, transparent 0%, rgba(18, 18, 18, 0.6) 15%, rgba(18, 18, 18, 0.6) 85%, transparent 100%);
}

.section-contato h2 {
    text-align: center;
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section-intro {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--space-2xl);
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.form-orcamento {
    max-width: 560px;
    margin: 0 auto;
    background: var(--color-bg-card);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
}

.form-orcamento .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-orcamento .form-row--2 {
    grid-template-columns: 1fr 1fr;
}

.form-orcamento input,
.form-orcamento select,
.form-orcamento button {
    width: 100%;
    padding: 0.9rem 1rem;
    margin-bottom: var(--space-md);
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-orcamento input:focus,
.form-orcamento select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.form-orcamento label:not(.sr-only) {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: 0.9rem;
    color: var(--color-accent);
}

.orcamento-field {
    margin-bottom: var(--space-md);
}

.campos-montagem {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.campos-montagem[hidden] {
    display: none !important;
}

.btn-submit {
    margin-top: var(--space-md);
    margin-bottom: 0;
    background: var(--gradient-accent);
    color: var(--color-bg);
    font-weight: 600;
    border: none;
    padding: 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-base);
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
    margin-top: var(--space-3xl);
    padding: var(--space-2xl) var(--space-lg);
    background: rgba(18, 18, 18, 0.95);
    border-top: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
}

.footer-content {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.footer-block h3 {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.footer-block a {
    color: var(--color-accent);
    transition: color var(--transition-fast);
}

.footer-block a:hover {
    color: var(--color-cyan);
}

.btn-whatsapp {
    background: #25d366;
    color: #fff;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    transition: transform var(--transition-fast), filter var(--transition-fast);
}

.btn-whatsapp:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.copyright {
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ============================================
   Responsivo
   ============================================ */
@media (max-width: 900px) {
    .sobre-container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .sobre-img {
        max-width: 480px;
        margin: 0 auto;
    }

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

    .slide-image {
        max-width: 100%;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
        order: 1;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: var(--space-xl);
        gap: 0;
        border-bottom: 1px solid var(--color-border);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height var(--transition-base), opacity var(--transition-base);
    }

    .nav-menu.open {
        max-height: 280px;
        opacity: 1;
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-menu a {
        display: block;
        padding: var(--space-md);
    }

    .form-orcamento .form-row,
    .form-orcamento .form-row--2 {
        grid-template-columns: 1fr;
    }

    .form-orcamento {
        padding: var(--space-lg);
    }

    .slider-wrapper {
        padding: var(--space-lg);
    }

    .slider {
        min-height: 280px;
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --header-h: 70px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
        margin-left: 0.75rem; /* nudge para a direita para centralizar visualmente */
    }

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

    .slider-btn {
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
    }
}

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

    .section {
        opacity: 1;
        transform: none;
    }

    .tech-background::before,
    .tech-particles,
    .energy-lines {
        animation: none;
    }
}