/* ==========================================================================
   Du Móbile — Design System
   Paleta: Azul Corporativo #1B3A6B · Preto #111 · Branco #FAFAFA · Cobre #C5913A
   ========================================================================== */

/* ---- TOKENS ---- */
:root {
    --blue:        #1B3A6B;   /* Azul logo — cor principal */
    --blue-light:  #2C5099;   /* Azul hover */
    --blue-dark:   #0F2244;   /* Azul profundo */
    --copper:      #C5913A;   /* Cobre/dourado — detalhe premium */
    --copper-light:#D4A85A;
    --black:       #111111;
    --off-black:   #1C1C1C;
    --gray-900:    #222222;
    --gray-700:    #444444;
    --gray-500:    #777777;
    --gray-300:    #CCCCCC;
    --gray-100:    #F0F0F0;
    --off-white:   #F7F5F2;   /* Fundo quente — levemente amadeirado */
    --white:       #FFFFFF;

    --font-serif:  'Playfair Display', Georgia, serif;
    --font-sans:   'Inter', system-ui, sans-serif;

    --radius:      4px;
    --radius-lg:   8px;
    --shadow-sm:   0 2px 8px rgba(0,0,0,.08);
    --shadow-md:   0 8px 32px rgba(0,0,0,.12);
    --shadow-lg:   0 20px 60px rgba(0,0,0,.18);
    --transition:  .3s cubic-bezier(.4,0,.2,1);
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-sans); background: var(--white); color: var(--gray-900); line-height: 1.65; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* Proteção: garante que textos fiquem visíveis se JS falhar */
body.js-loaded .reveal { /* controlado via JS */ }


/* ---- LAYOUT ---- */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section-pad { padding: 6rem 0; }
.bg-off { background: var(--off-white); }
.w-full { width: 100%; }
.mt-btn { margin-top: 2rem; }

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn-primary {
    display: inline-flex; align-items: center; gap: .5rem;
    background: var(--blue); color: var(--white);
    padding: .85rem 2rem; border-radius: var(--radius);
    font-family: var(--font-sans); font-weight: 600; font-size: .875rem;
    letter-spacing: .05em; text-transform: uppercase;
    border: 2px solid var(--blue);
    transition: var(--transition);
}
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-ghost {
    display: inline-flex; align-items: center; gap: .5rem;
    background: transparent; color: var(--white);
    padding: .85rem 2rem; border-radius: var(--radius);
    font-family: var(--font-sans); font-weight: 500; font-size: .875rem;
    letter-spacing: .05em; text-transform: uppercase;
    border: 2px solid rgba(255,255,255,.5);
    transition: var(--transition);
}
.btn-ghost:hover { border-color: var(--white); background: rgba(255,255,255,.1); }

.btn-ghost-sm {
    display: inline-block;
    background: transparent; color: var(--gray-300);
    padding: .5rem 1rem; border-radius: var(--radius);
    font-size: .8rem; font-weight: 500; letter-spacing: .05em; text-transform: uppercase;
    border: 1px solid var(--gray-700);
    transition: var(--transition); margin-top: .75rem;
}
.btn-ghost-sm:hover { border-color: var(--copper); color: var(--copper); }

.btn-cta {
    display: inline-flex; align-items: center; gap: .4rem;
    background: var(--copper); color: var(--white);
    padding: .55rem 1.25rem; border-radius: var(--radius);
    font-size: .8rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
    transition: var(--transition);
}
.btn-cta:hover { background: var(--copper-light); }

.btn-lg { padding: 1.1rem 2.5rem; font-size: 1rem; }

/* ==========================================================================
   HEADER
   ========================================================================== */
header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    padding: 1.25rem 0;
    transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}
header.scrolled {
    background: var(--white);
    padding: .75rem 0;
    box-shadow: var(--shadow-sm);
}
/* Página de serviços — header já começa sólido */
header.header-dark {
    background: var(--white);
    padding: .75rem 0;
    box-shadow: var(--shadow-sm);
}

.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }

.logo img { height: 68px; transition: height var(--transition); }
header.scrolled .logo img, header.header-dark .logo img { height: 56px; }

#nav-menu ul { display: flex; align-items: center; gap: 2rem; }

.nav-link {
    font-size: .875rem; font-weight: 500; letter-spacing: .03em;
    color: var(--white); position: relative; padding-bottom: 3px;
}
header.scrolled .nav-link, header.header-dark .nav-link { color: var(--gray-700); }

.nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 0; height: 2px; background: var(--copper);
    transition: width var(--transition);
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link:hover, header.scrolled .nav-link:hover { color: var(--blue); }
header.scrolled .nav-link.active, header.header-dark .nav-link.active { color: var(--blue); }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: .4rem; }
.hamburger span {
    display: block; width: 24px; height: 2px;
    background: var(--white); border-radius: 2px; transition: var(--transition);
}
header.scrolled .hamburger span, header.header-dark .hamburger span { background: var(--gray-900); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
    height: 100vh; min-height: 620px;
    position: relative; display: flex; align-items: center;
}
.hero-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    z-index: 0;
}
.hero-overlay {
    position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(105deg, rgba(11,26,50,.88) 0%, rgba(11,26,50,.55) 55%, rgba(11,26,50,.2) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 700px; }

.hero-eyebrow {
    display: inline-block;
    color: var(--copper); font-size: .8rem; font-weight: 600;
    letter-spacing: .2em; text-transform: uppercase;
    margin-bottom: 1.25rem;
}
.hero-title {
    font-family: var(--font-serif); font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 700; color: var(--white); line-height: 1.1; margin-bottom: 1.5rem;
}
.hero-desc { font-size: 1.1rem; color: rgba(255,255,255,.82); max-width: 540px; margin-bottom: 2.5rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-scroll-indicator {
    position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
    z-index: 2; display: flex; flex-direction: column; align-items: center; gap: .5rem;
    color: rgba(255,255,255,.5); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase;
}
.scroll-line { width: 1px; height: 50px; background: linear-gradient(to bottom, rgba(255,255,255,.4), transparent); }

/* ==========================================================================
   STATS BAR
   ========================================================================== */
.stats-bar { background: var(--blue-dark); padding: 2.5rem 0; }
.stats-inner { display: flex; align-items: center; justify-content: center; gap: 0; flex-wrap: wrap; }
.stat-item {
    flex: 1; min-width: 140px; text-align: center; padding: .5rem 1.5rem;
}
.stat-item strong { display: block; font-family: var(--font-serif); font-size: 2.4rem; color: var(--copper); line-height: 1; }
.stat-item span { font-size: .8rem; color: rgba(255,255,255,.65); letter-spacing: .08em; text-transform: uppercase; margin-top: .25rem; display: block; }
.stat-divider { width: 1px; height: 50px; background: rgba(255,255,255,.1); flex-shrink: 0; }

/* ==========================================================================
   SECTION HEADER
   ========================================================================== */
.section-header { max-width: 560px; margin-bottom: 3.5rem; }
.section-header h2 { font-family: var(--font-serif); font-size: clamp(1.8rem, 3vw, 2.8rem); color: var(--black); margin: .5rem 0 1rem; }
.section-header p { color: var(--gray-500); font-size: 1.05rem; }

.section-tag {
    display: inline-block;
    color: var(--copper); font-size: .75rem; font-weight: 600;
    letter-spacing: .2em; text-transform: uppercase; margin-bottom: .5rem;
}

/* ==========================================================================
   SERVICES GRID (homepage)
   ========================================================================== */
.services-preview { overflow: hidden; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px; background: var(--gray-300);
    border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.service-tile {
    position: relative; overflow: hidden;
    min-height: 480px; display: flex; align-items: flex-end;
    cursor: pointer;
}
.tile-img {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    transition: transform .6s cubic-bezier(.4,0,.2,1);
}
.service-tile:hover .tile-img { transform: scale(1.06); }
.tile-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(11,26,50,.88) 0%, rgba(11,26,50,.1) 60%);
    transition: var(--transition);
}
.service-tile:hover .tile-overlay { background: linear-gradient(to top, rgba(11,26,50,.95) 0%, rgba(11,26,50,.3) 60%); }
.tile-content {
    position: relative; z-index: 2; padding: 2rem 1.5rem;
    transition: var(--transition); width: 100%;
}
.tile-num { font-size: .7rem; color: var(--copper); letter-spacing: .2em; font-weight: 600; text-transform: uppercase; display: block; margin-bottom: .5rem; }
.tile-content h3 { font-family: var(--font-serif); font-size: 1.4rem; color: var(--white); margin-bottom: .5rem; }
.tile-content p { font-size: .875rem; color: rgba(255,255,255,.7); margin-bottom: 1rem; }
.tile-cta {
    font-size: .75rem; color: var(--copper); font-weight: 600;
    letter-spacing: .1em; text-transform: uppercase;
    opacity: 0; transform: translateY(8px); transition: var(--transition);
    display: block;
}
.service-tile:hover .tile-cta { opacity: 1; transform: translateY(0); }
.section-cta { margin-top: 2.5rem; text-align: center; }

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }

.about-media { position: relative; }
.about-media img {
    width: 100%; aspect-ratio: 3/4; object-fit: cover; object-position: top;
    border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
}
.about-badge {
    position: absolute; bottom: -1.5rem; right: -1.5rem;
    background: var(--blue); color: var(--white);
    padding: 1.25rem 1.5rem; border-radius: var(--radius-lg);
    text-align: center; box-shadow: var(--shadow-md);
}
.badge-num { display: block; font-family: var(--font-serif); font-size: 2rem; font-weight: 700; line-height: 1; }
.badge-label { font-size: .7rem; letter-spacing: .15em; text-transform: uppercase; opacity: .8; margin-top: .25rem; display: block; }

.about-text h2 { font-family: var(--font-serif); font-size: clamp(1.8rem, 3vw, 2.4rem); color: var(--black); margin: .5rem 0 1.5rem; }
.lead-text { font-size: 1.05rem; font-weight: 500; color: var(--gray-700); margin-bottom: 1rem; line-height: 1.7; }
.about-text > p { color: var(--gray-500); margin-bottom: 1rem; }

.pillars { margin-top: 2rem; display: flex; flex-direction: column; gap: 1.5rem; }
.pillar { display: flex; gap: 1rem; align-items: flex-start; }
.pillar-icon {
    flex-shrink: 0; width: 44px; height: 44px;
    background: var(--blue); color: var(--white);
    border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
}
.pillar strong { display: block; font-weight: 600; color: var(--black); margin-bottom: .25rem; }
.pillar p { font-size: .9rem; color: var(--gray-500); }

/* ==========================================================================
   CTA BANNER
   ========================================================================== */
.cta-banner { position: relative; min-height: 420px; display: flex; align-items: center; }
.cta-banner-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
}
.cta-banner-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to right, rgba(11,26,50,.95) 0%, rgba(11,26,50,.75) 100%);
}
.cta-banner-content { position: relative; z-index: 2; max-width: 600px; }
.cta-banner-content h2 { font-family: var(--font-serif); font-size: clamp(1.8rem, 3.5vw, 2.8rem); color: var(--white); margin-bottom: 1rem; }
.cta-banner-content p { color: rgba(255,255,255,.75); font-size: 1.05rem; margin-bottom: 2rem; }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }

.contact-info h2 { font-family: var(--font-serif); font-size: clamp(1.8rem, 3vw, 2.4rem); color: var(--black); margin: .5rem 0 1rem; }
.contact-info > p { color: var(--gray-500); margin-bottom: 2rem; }

.contact-channels { display: flex; flex-direction: column; gap: 1rem; }
.channel-item {
    display: flex; align-items: center; gap: 1rem;
    padding: 1.25rem 1.5rem;
    border: 1px solid var(--gray-100); border-radius: var(--radius-lg);
    transition: var(--transition); background: var(--white);
}
.channel-item:hover { border-color: var(--blue); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.channel-icon {
    width: 44px; height: 44px; flex-shrink: 0;
    background: var(--blue); color: var(--white);
    border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
}
.channel-label { display: block; font-size: .75rem; color: var(--gray-500); letter-spacing: .05em; text-transform: uppercase; }
.channel-value { display: block; font-weight: 600; color: var(--black); margin-top: .1rem; }

/* Form */
.contact-form-wrap {
    background: var(--white); border: 1px solid var(--gray-100);
    border-radius: var(--radius-lg); padding: 2.5rem; box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-field { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1.25rem; }
.form-field label { font-size: .8rem; font-weight: 600; color: var(--gray-700); letter-spacing: .03em; text-transform: uppercase; }
input, select, textarea {
    width: 100%; padding: .85rem 1rem;
    border: 1px solid var(--gray-300); border-radius: var(--radius);
    font-family: var(--font-sans); font-size: .95rem; color: var(--black);
    background: var(--white); transition: var(--transition);
    appearance: none;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(27,58,107,.1); }
textarea { resize: vertical; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer { background: var(--off-black); padding-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 3rem; }
/* Logo tem fundo branco — colocamos numa caixa branca arredondada no footer */
.footer-logo {
    height: 52px; margin-bottom: 1rem;
    background: var(--white); padding: .35rem .6rem;
    border-radius: var(--radius);
    object-fit: contain;
}
.footer-brand p { font-size: .875rem; color: var(--gray-500); line-height: 1.7; }
.footer-location { margin-top: .75rem; font-size: .8rem; color: var(--gray-500) !important; }
.footer-nav h4, .footer-contact h4 { font-size: .75rem; color: var(--white); font-weight: 600; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 1.25rem; }
.footer-nav ul li { margin-bottom: .6rem; }
.footer-nav a { font-size: .875rem; color: var(--gray-500); }
.footer-nav a:hover { color: var(--copper); }
.footer-contact p { font-size: .875rem; color: var(--gray-500); margin-bottom: .5rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.06); padding: 1.5rem 0; }
.footer-bottom p { text-align: center; font-size: .8rem; color: var(--gray-500); }

/* ==========================================================================
   PAGE HERO (servicos.html)
   ========================================================================== */
.page-hero {
    background: var(--blue-dark); padding: 9rem 0 4rem;
    border-bottom: 3px solid var(--copper);
}
.breadcrumb { display: flex; gap: .5rem; align-items: center; font-size: .8rem; color: rgba(255,255,255,.5); margin-bottom: 1.5rem; }
.breadcrumb a { color: rgba(255,255,255,.5); }
.breadcrumb a:hover { color: var(--copper); }
.breadcrumb span { color: rgba(255,255,255,.3); }
.page-hero h1 { font-family: var(--font-serif); font-size: clamp(2rem, 4vw, 3.2rem); color: var(--white); margin-bottom: 1rem; }
.page-hero p { color: rgba(255,255,255,.7); font-size: 1.05rem; max-width: 560px; }

/* ==========================================================================
   SERVICES STICKY NAV
   ========================================================================== */
.sticky-nav {
    position: sticky; top: 70px; z-index: 100;
    background: var(--white); border-bottom: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
}
.sticky-nav .container { display: flex; gap: 0; overflow-x: auto; }
.snav-link {
    flex-shrink: 0; display: block;
    padding: 1.1rem 1.75rem; font-size: .8rem; font-weight: 600;
    letter-spacing: .1em; text-transform: uppercase; color: var(--gray-500);
    border-bottom: 3px solid transparent; transition: var(--transition);
}
.snav-link:hover { color: var(--blue); }
.snav-link.active { color: var(--blue); border-bottom-color: var(--copper); }

/* ==========================================================================
   SERVICE SECTION (servicos.html)
   ========================================================================== */
.service-intro {
    display: grid; grid-template-columns: 1fr 1fr; gap: 4rem;
    align-items: start; margin-bottom: 4rem;
}
.service-intro-reverse { direction: rtl; }
.service-intro-reverse > * { direction: ltr; }

.service-intro-text h2 { font-family: var(--font-serif); font-size: clamp(2rem, 3.5vw, 2.8rem); color: var(--black); margin: .5rem 0 1.5rem; }
.service-intro-text .lead-text { color: var(--gray-700); }
.service-intro-text p { color: var(--gray-500); margin-bottom: 1rem; }

.service-highlights { display: flex; flex-direction: column; gap: 1.5rem; padding-top: .5rem; }
.highlight-item { display: flex; gap: 1rem; align-items: flex-start; }
.highlight-icon { color: var(--copper); font-size: 1rem; margin-top: .1rem; flex-shrink: 0; }
.highlight-item strong { display: block; font-weight: 600; color: var(--black); margin-bottom: .25rem; }
.highlight-item p { font-size: .9rem; color: var(--gray-500); }

/* GALLERY */
.gallery { }
.gallery-main {
    width: 100%; height: 520px; border-radius: var(--radius-lg); overflow: hidden;
    margin-bottom: 1rem; box-shadow: var(--shadow-lg);
}
.gallery-main-img {
    width: 100%; height: 100%; object-fit: cover;
    transition: opacity .2s ease;
}
.gallery-thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: .75rem; }
.thumb {
    width: 100%; height: 90px; object-fit: cover;
    border-radius: var(--radius); cursor: pointer;
    border: 2px solid transparent; transition: var(--transition);
    opacity: .7;
}
.thumb:hover { opacity: 1; border-color: var(--blue); }
.thumb.active { opacity: 1; border-color: var(--copper); }

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
/* ==========================================================================
   ANIMATIONS — Reveal on Scroll
   Usa animation como fallback: mesmo que o JS não adicione .active,
   o elemento aparece após 1.2s automaticamente.
   ========================================================================== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .65s ease, transform .65s ease;
    /* Fallback: aparece após 1.2s se JS não disparar */
    animation: fadeUp .65s ease 1.2s forwards;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
    animation: none; /* JS assumiu o controle, cancela fallback */
}
.delay-1 { transition-delay: .10s; animation-delay: 1.30s; }
.delay-2 { transition-delay: .20s; animation-delay: 1.40s; }
.delay-3 { transition-delay: .30s; animation-delay: 1.50s; }

/* Para motion-sensitive users, mostra tudo imediatamente */
@media (prefers-reduced-motion: reduce) {
    .reveal, .reveal.active { opacity: 1; transform: none; animation: none; }
}


/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .section-pad { padding: 4rem 0; }
    .hamburger { display: flex; }

    #nav-menu {
        position: fixed; inset: 0 0 0 auto;
        width: min(300px, 85vw); height: 100vh;
        background: var(--white); padding: 6rem 2rem 2rem;
        box-shadow: -4px 0 30px rgba(0,0,0,.15);
        transform: translateX(100%); transition: transform var(--transition);
        z-index: 999;
    }
    #nav-menu.open { transform: translateX(0); }
    #nav-menu ul { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
    .nav-link { color: var(--gray-700) !important; font-size: 1rem; }
    .btn-cta { width: 100%; justify-content: center; }

    .hero-title { font-size: 2.6rem; }
    .hero-actions { flex-direction: column; }

    .stats-inner { gap: 1rem; }
    .stat-divider { display: none; }
    .stat-item { min-width: 120px; }

    .about-grid { grid-template-columns: 1fr; gap: 3rem; }
    .about-badge { right: 0; }

    .services-grid { grid-template-columns: 1fr; }
    .service-tile { min-height: 320px; }

    .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .form-row { grid-template-columns: 1fr; }

    .service-intro, .service-intro-reverse { grid-template-columns: 1fr; direction: ltr; gap: 2rem; }
    .gallery-main { height: 300px; }
    .gallery-thumbs { grid-template-columns: repeat(3, 1fr); }
    .thumb { height: 70px; }

    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .stats-bar .stats-inner { justify-content: flex-start; }
}

@media (max-width: 480px) {
    .hero { min-height: 100svh; }
    .hero-title { font-size: 2rem; }
    .page-hero { padding: 8rem 0 3rem; }
    .sticky-nav .container { gap: 0; }
    .snav-link { padding: 1rem 1.25rem; font-size: .75rem; }
}