/* ================================================
   FB ENGENHARIA — Regularização de Imóveis
   Design: Refined Navy & Steel Blue
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700&family=Fraunces:wght@600;700;800&display=swap');

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

:root {
    /* Paleta azul principal */
    --navy:         #021D53;
    --azul-petroleo:#033683;
    --azul-real:    #0B4FCC;
    --azul-claro:   #2176FF;
    --azul-ceu:     #4FA3FF;
    --azul-ice:     #D6E8FF;
    --azul-gelo:    #EEF5FF;

    /* Neutros */
    --cinza-escuro: #0F1923;
    --cinza-medio:  #3A4452;
    --cinza-suave:  #8899AA;
    --branco:       #F8FAFF;
    --branco-puro:  #FFFFFF;

    /* Efeitos */
    --sombra-azul:  0 20px 60px rgba(2, 29, 83, 0.18);
    --sombra-card:  0 8px 32px rgba(2, 29, 83, 0.12);
    --borda-azul:   rgba(33, 118, 255, 0.18);

    /* Gradientes */
    --grad-hero:    linear-gradient(145deg, #021D53 0%, #0B4FCC 50%, #2176FF 100%);
    --grad-secao:   linear-gradient(180deg, #EEF5FF 0%, #D6E8FF 60%, #C2DCFF 100%);
    --grad-card:    linear-gradient(135deg, #0B4FCC 0%, #2176FF 100%);
    --grad-escuro:  linear-gradient(160deg, #021D53 0%, #0F1923 100%);
}

html { scroll-behavior: smooth; }

body {
    font-family: ar;
    color: var(--cinza-escuro);
    line-height: 1.7;
    background: var(--branco);
    min-height: 100vh;
}

/* ── TIPOGRAFIA ────────────────────────────────── */
h1, h2, h3 {
    font-family: Arial, Helvetica, sans-serif;
    font-weight: 700;
    line-height: 1.2;
}
h1 { font-size: 3.4rem; }
h2 { font-size: 2.4rem; margin-bottom: 16px; }
h3 { font-size: 1.4rem; }
h4 { font-weight: 600; font-size: 1.1rem; color: var(--cinza-medio); }
p  { margin-bottom: 14px; color: var(--cinza-medio); line-height: 1.75; }

/* ── CONTAINER ─────────────────────────────────── */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ── BOTÕES ────────────────────────────────────── */
.btn-primary, .btn-secondary, .btn-nav, .btn-whatsapp {
    padding: 14px 30px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    cursor: pointer;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: var(--grad-card);
    color: var(--branco-puro);
    box-shadow: 0 6px 24px rgba(11, 79, 204, 0.35);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 36px rgba(11, 79, 204, 0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--branco-puro);
    border: 2px solid rgba(255,255,255,0.6);
    backdrop-filter: blur(8px);
}
.btn-secondary:hover {
    background: var(--branco-puro);
    color: var(--azul-real);
    border-color: var(--branco-puro);
    transform: translateY(-3px);
}

.btn-nav {
    background: var(--azul-real);
    color: var(--branco-puro);
    padding: 10px 22px;
    font-size: 1rem;
    box-shadow: 0 4px 16px rgba(11, 79, 204, 0.3);
}
.btn-nav:hover {
    background: var(--azul-claro);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: linear-gradient(135deg, #1fbe57, #25D366);
    color: var(--branco-puro);
    margin-top: 20px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
}
.btn-whatsapp i { margin-right: 6px; }

/* ── HEADER ────────────────────────────────────── */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 var(--borda-azul), 0 4px 24px rgba(2, 29, 83, 0.06);
    transition: all 0.3s;
}
header.scrolled {
    box-shadow: 0 1px 0 var(--borda-azul), 0 8px 40px rgba(2, 29, 83, 0.12);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    font-family: 'Fraunces', serif;
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--navy);
    letter-spacing: -0.5px;
}
.logo span {
    color: var(--azul-claro);
    font-weight: 400;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 36px;
}
.nav-links a {
    text-decoration: none;
    color: var(--cinza-medio);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.25s;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--azul-claro);
    transition: width 0.3s ease;
    border-radius: 2px;
}
.nav-links a:hover { color: var(--azul-real); }
.nav-links a:hover::after { width: 100%; }

/* ── SECTIONS ──────────────────────────────────── */
section { padding: 100px 0; position: relative; }

.section-header {
    max-width: 680px;
    margin: 0 auto 64px;
    text-align: center;
}
.section-header h2 { color: var(--navy); }
.section-header h4 { color: var(--azul-real); font-size: 1rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 12px; }
.section-header p { color: var(--cinza-medio); font-size: 1.05rem; }

/* ── SEÇÃO HERO / INTRO ────────────────────────── */
#laudos {
    background: var(--branco-puro);
    padding-top: 140px;
    overflow: hidden;
    position: relative;
}

#laudos::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(33,118,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

#laudos .container > h2 {
    color: var(--navy) !important;
    text-align: center !important;
    font-size: 3.2rem !important;
    line-height: 1.15;
    margin-bottom: 40px;
    position: relative;
}

#laudos .container > h2 span {
    color: var(--azul-claro);
}

/* Badge/pílula acima do título */
.intro-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--azul-ice);
    color: var(--azul-real);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    border: 1px solid rgba(33, 118, 255, 0.2);
}

.sobre-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 20px;
}

.sobre-grid > div h4 {
    font-size: 1.3rem;
    color: var(--navy);
    margin-bottom: 16px;
    font-family: 'Fraunces', serif;
    font-weight: 700;
    line-height: 1.4;
}
.sobre-grid > div p {
    font-size: 1.05rem;
    color: var(--cinza-medio);
}

/* Destaque lateral do sobre */
.sobre-destaque {
    background: var(--grad-card);
    border-radius: 24px;
    padding: 48px 40px;
    color: var(--branco-puro);
    position: relative;
    overflow: hidden;
    box-shadow: var(--sombra-azul);
}
.sobre-destaque::before {
    content: '';
    position: absolute;
    top: -60px; right: -60px;
    width: 250px; height: 250px;
    background: rgba(255,255,255,0.07);
    border-radius: 50%;
}
.sobre-destaque h3 {
    color: var(--branco-puro);
    font-size: 1.6rem;
    margin-bottom: 20px;
}
.sobre-destaque p { color: rgba(255,255,255,0.82); margin-bottom: 0; }

/* ── SEÇÃO ETAPAS ──────────────────────────────── */
#etapas {
    background: var(--grad-secao);
    position: relative;
    overflow: hidden;
}

#etapas::before {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--azul-claro), transparent);
}

.diferenciais-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 28px;
    margin-bottom: 80px;
}

/* ── CARD DE ETAPA ─────────────────────────────── */
.dif-item {
    background: var(--branco-puro);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--sombra-card);
    border: 1px solid rgba(33, 118, 255, 0.1);
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.dif-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--grad-card);
    transform: scaleX(0);
    transition: transform 0.35s ease;
    transform-origin: left;
}

.dif-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(2, 29, 83, 0.18);
    border-color: rgba(33, 118, 255, 0.2);
}

.dif-item:hover::before { transform: scaleX(1); }

/* Número da etapa */
.dif-item > p:first-child {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--azul-ice);
    color: var(--azul-real);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.85rem;
    margin: 0 auto 16px;
}

.dif-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 14px;
    margin-bottom: 20px;
    border: 1px solid var(--azul-ice);
}

.dif-item h4 {
    color: var(--navy);
    font-size: 1.05rem;
    font-family: 'Fraunces', serif;
    font-weight: 700;
    margin-bottom: 10px;
}

.dif-item p {
    color: var(--cinza-suave);
    font-size: 0.92rem;
    line-height: 1.65;
    margin-bottom: 0;
}

/* ── SEÇÃO SERVIÇOS JÁ REALIZADOS ─────────────── */
.servicos-realizados-titulo {
    text-align: center;
    margin: 80px 0 40px;
}
.servicos-realizados-titulo h4 {
    font-family: 'Fraunces', serif;
    font-size: 2rem;
    color: var(--navy);
    font-weight: 700;
}

/* ── CONTATO ───────────────────────────────────── */
.dif-item { text-align: center; .dif-item i { font-size: 2.5rem; color: var(--laranja); margin-bottom: 16px; }}

.contato { background: var(--cinza-escuro); color: var(--branco); }
.contato h2, .contato .tag { color: var(--branco); }
.contato .tag { background: rgba(255,255,255,0.1); }
.contato-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: start; }
.contato-info p { color: rgba(255,255,255,0.8); }
.contato-item { display: flex; align-items: center; gap: 12px; margin: 16px 0; color: rgba(255,255,255,0.9); }
.contato-item i { color: var(--dourado); }
.form-contato { background: var(--branco); padding: 40px; border-radius: 12px; display: grid; gap: 16px; }
.form-contato input, .form-contato select, .form-contato textarea { padding: 14px; border: 1px solid #ddd; border-radius: 8px; font-family: 'Montserrat'; font-size: 1rem; }
.form-contato input:focus, .form-contato select:focus, .form-contato textarea:focus { outline: none; border-color: var(--laranja); }

/* ── CARD SERVIÇOS (se houver) ─────────────────── */
.card-servicos-lista {
    background: var(--branco-puro);
    border-radius: 20px;
    box-shadow: var(--sombra-card);
    overflow: hidden;
    border: 1px solid var(--borda-azul);
}
.card-header {
    background: var(--grad-card);
    padding: 24px 32px;
    display: flex;
    align-items: center;
    gap: 16px;
}
.card-header i  { font-size: 1.8rem; color: var(--branco-puro); }
.card-header h3 { color: var(--branco-puro); margin: 0; font-size: 1.3rem; }

.lista-servicos { list-style: none; padding: 28px 32px; }
.lista-servicos li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--azul-ice);
    transition: all 0.25s;
}
.lista-servicos li:last-child { border-bottom: none; }
.lista-servicos li:hover { padding-left: 6px; }
.lista-servicos li i { color: var(--azul-real); font-size: 1rem; margin-top: 4px; }
.lista-servicos li span { color: var(--cinza-medio); font-size: 0.97rem; }

/* ── FOOTER ────────────────────────────────────── */

footer { background: #0D1117; color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .logo { color: var(--branco); margin-bottom: 16px; }
.footer-links h4, .footer-social h4 { color: var(--branco); margin-bottom: 16px; font-size: 1.1rem; }
.footer-links a { display: block; color: rgba(255,255,255,0.7); text-decoration: none; margin-bottom: 10px; transition: color 0.3s; }
.footer-links a:hover { color: var(--dourado); }
.social-icons { display: flex; gap: 16px; }
.social-icons a { width: 40px; height: 40px; background: rgba(255,255,255,0.1); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: var(--branco); transition: all 0.3s; }
.social-icons a:hover { background: var(--laranja); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; font-size: 0.9rem; }


/* ── IMAGENS ───────────────────────────────────── */
img {
    height: 180px;
    border-radius: 14px;
    object-fit: cover;
    display: block;
    margin: 0 auto 16px;
}

/* ── ACCORDION ─────────────────────────────────── */
.accordion {
    --bs-accordion-btn-padding-y: 1.4rem;
    --bs-accordion-btn-padding-x: 2rem;
    --bs-accordion-body-padding-y: 1.6rem;
    --bs-accordion-body-padding-x: 2rem;
    --bs-accordion-border-radius: 16px;
    --bs-accordion-bg: rgba(33, 118, 255, 0.06);
    --bs-accordion-btn-bg: rgba(11, 79, 204, 0.08);
    --bs-accordion-active-bg: rgba(33, 118, 255, 0.18);
    --bs-accordion-border-color: rgba(33, 118, 255, 0.2);
    --bs-accordion-border-width: 1px;
    --bs-accordion-color: var(--cinza-escuro);
    --bs-accordion-btn-color: var(--navy);
    --bs-accordion-active-color: var(--navy);
    backdrop-filter: blur(12px);
    --bs-accordion-btn-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%230B4FCC' stroke-linecap='round' stroke-linejoin='round' stroke-width='2'%3e%3cpath d='M2 5L8 11L14 5'/%3e%3c/svg%3e");
    --bs-accordion-btn-active-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%230B4FCC' stroke-linecap='round' stroke-linejoin='round' stroke-width='2'%3e%3cpath d='M2 5L8 11L14 5'/%3e%3c/svg%3e");
    --bs-accordion-btn-icon-width: 1.25rem;
    --bs-accordion-btn-icon-transform: rotate(-180deg);
    --bs-accordion-btn-icon-transition: transform .3s ease;
    --bs-accordion-transition: all .3s ease;
    --bs-accordion-btn-focus-box-shadow: 0 0 0 0.2rem rgba(33, 118, 255, 0.2);
    --bs-accordion-inner-border-radius: 0;
}

.accordion-button {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    padding: var(--bs-accordion-btn-padding-y) var(--bs-accordion-btn-padding-x);
    font-family: 'DM Sans', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--navy);
    text-align: left;
    background: var(--bs-accordion-btn-bg);
    border: 0;
    border-radius: var(--bs-accordion-border-radius) !important;
    transition: var(--bs-accordion-transition);
}
.accordion-button:hover {
    background: rgba(33, 118, 255, 0.12);
    transform: translateX(4px);
}
.accordion-button:not(.collapsed) {
    color: var(--azul-real);
    background: var(--bs-accordion-active-bg);
    box-shadow: none;
}
.accordion-button::after {
    flex-shrink: 0;
    width: var(--bs-accordion-btn-icon-width);
    height: var(--bs-accordion-btn-icon-width);
    margin-left: auto;
    content: "";
    background-image: var(--bs-accordion-btn-icon);
    background-repeat: no-repeat;
    background-size: var(--bs-accordion-btn-icon-width);
    transition: var(--bs-accordion-btn-icon-transition);
}
.accordion-button:not(.collapsed)::after {
    background-image: var(--bs-accordion-btn-active-icon);
    transform: var(--bs-accordion-btn-icon-transform);
}
.accordion-button:focus {
    box-shadow: var(--bs-accordion-btn-focus-box-shadow);
    border-color: transparent;
}

.accordion-item {
    color: var(--cinza-escuro);
    background-color: var(--bs-accordion-bg);
    border: var(--bs-accordion-border-width) solid var(--bs-accordion-border-color);
    border-radius: var(--bs-accordion-border-radius) !important;
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--bs-accordion-transition);
}
.accordion-item:hover {
    border-color: rgba(33, 118, 255, 0.4);
    box-shadow: 0 6px 24px rgba(11, 79, 204, 0.1);
}
.accordion-item:last-of-type { margin-bottom: 0; }

.accordion-header { margin-bottom: 0; }

.accordion-body {
    padding: var(--bs-accordion-body-padding-y) var(--bs-accordion-body-padding-x);
    background: var(--branco-puro);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--cinza-medio);
    animation: fadeSlide .35s ease-out;
}

@keyframes fadeSlide {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.collapse:not(.show) { display: none; }
.collapsing {
    height: 0;
    overflow: hidden;
    transition: height .35s ease;
}

/* ── HAMBÚRGUER ────────────────────────────────── */
.menu-toggle {
    display: none;
    background: transparent;
    border: 2px solid var(--azul-real);
    color: var(--azul-real);
    font-size: 1.3rem;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all .3s ease;
    z-index: 1001;
}
.menu-toggle:hover {
    background: var(--azul-real);
    color: var(--branco-puro);
}
.menu-toggle.active {
    background: var(--azul-real);
    border-color: var(--azul-real);
    color: var(--branco-puro);
}

/* ── RESPONSIVO ────────────────────────────────── */
@media (max-width: 992px) {
    .menu-toggle { display: block; }
    nav .btn-nav { display: none; }

    .nav-links {
        position: fixed;
        top: 0; right: -100%;
        width: 280px; height: 100vh;
        background: var(--grad-escuro);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 100px 32px;
        gap: 0;
        transition: right .4s ease;
        box-shadow: -10px 0 40px rgba(0,0,0,0.3);
        z-index: 1000;
    }
    .nav-links.active { right: 0; }
    .nav-links li {
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .nav-links li:last-child { border-bottom: none; }
    .nav-links a {
        display: block;
        color: rgba(255,255,255,0.85);
        font-size: 1.05rem;
        padding: 16px 0;
        width: 100%;
    }
    .nav-links a::after { display: none; }
    .nav-links a:hover { color: var(--azul-ceu); padding-left: 8px; }
}

@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    #laudos .container > h2 { font-size: 2rem !important; }
    .btn-nav { display: none; }
    .sobre-grid, .contato-grid, .footer-grid { grid-template-columns: 1fr; }
    .contato-grid { padding: 40px 28px; }
    section { padding: 64px 0; }
    .diferenciais-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .diferenciais-grid { grid-template-columns: 1fr; }
    .contato-grid { padding: 32px 20px; gap: 40px; }
    .form-contato { padding: 32px 24px; }
}