/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
:root {
    /* Colors */
    --color-bg: #0a0a0a;         /* Deep black for background */
    --color-surface: #141414;    /* Slightly lighter black for cards/surfaces */
    --color-surface-hover: #1c1c1c; 
    --color-text: #e0e0e0;       /* Off-white for general text */
    --color-text-muted: #a0a0a0; 
    --color-white: #ffffff;
    --color-primary: #ff7a00;    /* Vibrant Orange */
    --color-primary-dark: #cc6200;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Montserrat', sans-serif;
    
    /* Spacing & Utilities */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius: 8px;
    --container-width: 1200px;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

/* ==========================================================================
   Typography & Reusable Utilities
   ========================================================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-white);
    font-weight: 800;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-title span {
    color: var(--color-primary);
}

.text-center {
    text-align: center;
}

.section-desc {
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

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

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

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

.btn-large {
    padding: 16px 36px;
    font-size: 1.1rem;
}

.btn i {
    margin-left: 8px;
    vertical-align: middle;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    padding: 1rem 0;
}

.header.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
}

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

/* Text Logo Style */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 2rem;
    color: var(--color-primary);
}

.logo-text h1 {
    font-size: 1.2rem;
    line-height: 1;
    letter-spacing: 2px;
    margin: 0;
}

.logo-text p {
    font-size: 0.7rem;
    letter-spacing: 4px;
    color: var(--color-primary);
    margin: 0;
    text-transform: uppercase;
}

.nav-menu ul {
    display: flex;
    gap: 2.5rem;
}

.nav-menu a {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text);
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

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

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

.mobile-toggle {
    display: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-white);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 122, 0, 0.15) 0%, rgba(0,0,0,0) 70%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

/* ==========================================================================
   Conceito Section
   ========================================================================== */
.conceito-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.conceito-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.conceito-image {
    position: relative;
}

.conceito-image::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-primary);
    z-index: -1;
    border-radius: var(--border-radius);
}

.image-placeholder {
    background-color: var(--color-surface);
    height: 450px;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--color-text-muted);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.image-placeholder i {
    font-size: 4rem;
    color: rgba(255, 122, 0, 0.3);
    margin-bottom: 1rem;
}

/* ==========================================================================
   Serviços Section
   ========================================================================== */
.servicos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.servico-card {
    background-color: var(--color-surface);
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.02);
}

.servico-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.6);
    border-color: rgba(255, 122, 0, 0.2);
}

.highlight-card {
    background: linear-gradient(145deg, var(--color-surface), #1a1a1a);
    border-color: rgba(255, 122, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.highlight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--color-primary);
}

.servico-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(255, 122, 0, 0.1);
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}

.servico-card:hover .servico-icon {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

.servico-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.servico-card p {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

/* ==========================================================================
   Experiência (Reviews) Section
   ========================================================================== */
.experiencia {
    background-color: var(--color-surface);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.review-card {
    background-color: var(--color-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
}

.stars {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.review-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.review-author {
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-container {
    max-width: 800px;
}

.accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem 2rem;
    background: none;
    border: none;
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.accordion-header:hover, .accordion-header.active {
    color: var(--color-primary);
}

.accordion-header i {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.accordion-header.active i {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.accordion-content p {
    padding: 0 2rem 1.5rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: #050505;
    padding: 5rem 0 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1.5rem;
    color: var(--color-text-muted);
    max-width: 300px;
}

.footer-brand .logo-text h2 {
    font-size: 1.5rem;
    margin: 0;
    line-height: 1;
}

.footer h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links a {
    color: var(--color-text-muted);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 5px;
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text-muted);
}

.footer-contact i {
    color: var(--color-primary);
    font-size: 1.2rem;
}

.social-links {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-surface);
    border-radius: 50%;
    color: var(--color-white);
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   Sticky WhatsApp
   ========================================================================== */
.whatsapp-sticky {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-sticky:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 25px rgba(37, 211, 102, 0.4);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
    .hero-title {
        font-size: 3.5rem;
    }
    .conceito-container {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background-color: var(--color-surface);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    }

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

    .nav-menu ul {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    .nav-btn {
        display: none;
    }

    .mobile-toggle {
        display: block;
        z-index: 1001;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .section {
        padding: 4rem 0;
    }
}