/* ==================== VARIÁVEIS GLOBAIS (MODELO 3) ==================== */
:root {
    --primary-color: #F59E0B; /* Laranja/Âmbar */
    --primary-color-alt: #D97706;
    --bg-color: #F9FAFB; /* Cinza muito claro */
    --card-color: #FFFFFF;
    --title-color: #1F2937; /* Cinza escuro (quase preto) */
    --text-color: #4B5563; /* Cinza médio */
    --border-color: #E5E7EB;
    --body-font: 'Roboto', sans-serif;
    --header-height: 4rem;
    --z-fixed: 100;
}

/* ==================== BASE E LAYOUT ==================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--body-font); background-color: var(--bg-color); color: var(--text-color); }
h1, h2, h3, h4 { color: var(--title-color); font-weight: 700; }
ul { list-style: none; }
a { text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1120px; margin-left: auto; margin-right: auto; padding-left: 1rem; padding-right: 1rem; }
.section { padding: 4rem 0; }
.section__title { font-size: 2rem; text-align: center; margin-bottom: 3rem; }

/* ==================== BOTÕES ==================== */
.button { display: inline-block; padding: 0.9rem 1.75rem; border-radius: .5rem; font-weight: 500; transition: all .3s; border: 2px solid transparent; cursor: pointer; }
.button--primary { background-color: var(--primary-color); color: #FFF; }
.button--primary:hover { background-color: var(--primary-color-alt); }
.button--secondary { background-color: transparent; color: var(--title-color); border-color: var(--border-color); box-shadow: 0 1px 2px rgba(0,0,0,0.05); }
.button--secondary:hover { background-color: var(--card-color); border-color: #D1D5DB; }
.button--full { width: 100%; text-align: center; justify-content: center; }
.button i { margin-right: .5rem; }

/* ==================== CABEÇALHO ==================== */
.header { width: 100%; background-color: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); position: fixed; top: 0; left: 0; z-index: var(--z-fixed); border-bottom: 1px solid var(--border-color); }
.nav { height: var(--header-height); display: flex; justify-content: space-between; align-items: center; }
.nav__logo img { height: 35px; }
.nav__list { display: flex; align-items: center; gap: 2.5rem; }
.nav__link { color: var(--text-color); font-weight: 500; transition: color .3s; }
.nav__link:hover { color: var(--primary-color); }
.nav__close, .nav__toggle { display: none; color: var(--title-color); font-size: 1.5rem; cursor: pointer; }

/* ==================== HERO SECTION ==================== */
.hero { text-align: center; padding-top: calc(var(--header-height) + 3rem); padding-bottom: 5rem; }
.hero__tagline { display: inline-block; background-color: #FEF3C7; color: var(--primary-color-alt); padding: .25rem .75rem; border-radius: 999px; font-size: 0.9rem; font-weight: 500; margin-bottom: 1rem; }
.hero__title { font-size: clamp(2.5rem, 5vw, 3.5rem); line-height: 1.1; margin-bottom: 1.5rem; }
.hero__subtitle { max-width: 600px; margin: 0 auto 2.5rem auto; font-size: 1.1rem; line-height: 1.6; }
.hero__buttons { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ==================== MARCAS ATENDIDAS ==================== */
.brands { padding-top: 0; text-align: center; }
.brands__title { font-size: 1rem; color: var(--text-color); margin-bottom: 1.5rem; font-weight: 500; }
.brands__logos { display: flex; justify-content: center; align-items: center; gap: 2rem; flex-wrap: wrap; }
.brands__logos img { height: 25px; filter: grayscale(100%); opacity: 0.7; transition: all .3s; }
.brands__logos img:hover { filter: grayscale(0%); opacity: 1; }

/* ==================== SERVIÇOS ==================== */
.services { background-color: #F3F4F6; }
.cards__grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card { background-color: var(--card-color); padding: 2rem; border-radius: .75rem; text-align: center; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); }
.card__icon { font-size: 2.5rem; color: var(--primary-color); margin-bottom: 1rem; }
.card__title { font-size: 1.25rem; margin-bottom: .5rem; }

/* ==================== PROCESSO ==================== */
.process__container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.process__step { position: relative; }
.process__number { position: absolute; top: -1rem; left: 50%; transform: translateX(-50%); background-color: var(--primary-color); color: #FFF; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; border: 3px solid var(--bg-color); }
.process__icon { font-size: 3rem; color: var(--primary-color); margin-bottom: 1rem; margin-top: 2rem; }

/* ==================== GALERIA ==================== */
.gallery { background-color: #F3F4F6; }
.gallery__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.gallery__item { position: relative; overflow: hidden; border-radius: .75rem; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); }
.gallery__label { position: absolute; top: .75rem; left: .75rem; color: #FFF; padding: .25rem .75rem; border-radius: .5rem; font-size: 0.9rem; font-weight: 500; }
.gallery__label--before { background-color: #EF4444; }
.gallery__label--after { background-color: #22C55E; }

/* ==================== DEPOIMENTOS ==================== */
.testimonials__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }
.testimonial__card { background-color: var(--card-color); padding: 2rem; border-radius: .75rem; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); }
.testimonial__card p { font-style: italic; margin-bottom: 1.5rem; }
.testimonial__author { display: flex; align-items: center; gap: 1rem; }
.testimonial__author img { width: 50px; height: 50px; border-radius: 50%; object-fit: cover; }

/* ==================== FORMULÁRIO DE CONTATO ==================== */
.contact-form__container { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; align-items: center; background-color: var(--card-color); padding: 3rem; border-radius: .75rem; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.07); }
.contact-form__text h2 { font-size: 1.75rem; margin-bottom: 1rem; }
.contact-form__text p { line-height: 1.6; }
.form-group { margin-bottom: 1rem; }
.form-group input, .form-group textarea { width: 100%; padding: .9rem; border: 1px solid var(--border-color); border-radius: .5rem; font-family: var(--body-font); font-size: 1rem; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2); }

/* ==================== RODAPÉ ==================== */
.footer { background-color: var(--title-color); color: #E5E7EB; padding-top: 4rem; padding-bottom: 2rem; }
.footer__container { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; margin-bottom: 3rem; }
.footer__logo img { height: 35px; margin-bottom: 1rem; filter: brightness(0) invert(1); }
.footer__about p { color: var(--text-color); max-width: 300px; }
.footer h4 { color: #FFF; margin-bottom: 1rem; }
.footer__contact p { margin-bottom: .5rem; color: var(--text-color); }
.footer__contact i { margin-right: .5rem; }
.footer__social-links { display: flex; gap: 1rem; }
.footer__social-links a { color: var(--text-color); font-size: 1.25rem; transition: color .3s; }
.footer__social-links a:hover { color: var(--primary-color); }
.footer__copyright { text-align: center; border-top: 1px solid #374151; padding-top: 2rem; color: var(--text-color); font-size: 0.9rem; }

/* ==================== RESPONSIVIDADE ==================== */
@media screen and (max-width: 768px) {
    .nav__toggle { display: block; }
    .nav__menu { position: fixed; top: 0; right: -100%; width: 70%; height: 100%; background-color: var(--card-color); padding: 4rem 2rem; transition: right .4s ease-in-out; }
    .show-menu { right: 0; }
    .nav__list { flex-direction: column; align-items: flex-start; gap: 2.5rem; }
    .nav__close { display: block; position: absolute; top: 1rem; right: 1.5rem; }
    .process__container, .contact-form__container, .footer__container { grid-template-columns: 1fr; }
    .process__container { gap: 3rem; }
}