/* ============================================================
   Grupo Alves Engenharia — reforma comercial e residencial
   Tokens: navy + brass vêm da marca real (logotipo); tipografia
   própria (Archivo + Work Sans) para um visual mais técnico
   e menos "imobiliária genérica".
   ============================================================ */

:root {
  --navy: #0b1b30;
  --navy-deep: #060f1c;
  --navy-mid: #142844;
  --gold: #ba9c5e;
  --gold-dark: #93763e;
  --gold-ink: #7a5f2e;
  --stone: #eceef1;
  --paper: #f7f7f5;
  --ink: #141a22;
  --steel: #5b6472;
  --steel-light: #9099a6;
  --offwhite: #ece9e2;
  --line-on-navy: rgba(236, 233, 226, 0.14);
  --line-on-stone: rgba(11, 27, 48, 0.12);

  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Work Sans", "Helvetica Neue", Arial, sans-serif;

  --max: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
section[id], article[id] { scroll-margin-top: 92px; }
body, h1, h2, h3, p, figure, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; }
svg { display: block; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-display); color: var(--navy); font-weight: 800; letter-spacing: -0.01em; }

p { max-width: 62ch; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--gold);
  color: var(--navy-deep);
  padding: 0.75rem 1.25rem;
  z-index: 200;
  font-weight: 600;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- shared layout ---------- */
.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section--stone { background: var(--stone); }
.section--paper { background: var(--paper); }
.section--navy { background: var(--navy); color: var(--offwhite); }
.section--navy h2, .section--navy h3 { color: #fff; }
.section--navy p { color: rgba(236, 233, 226, 0.78); }

.section-head { max-width: 42rem; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-head h2 {
  font-size: clamp(1.9rem, 3.4vw, 2.75rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}
.section-head p { font-size: 1.05rem; }

.kicker {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--gold-ink);
  font-weight: 600;
  margin-bottom: 0.9rem;
  letter-spacing: 0.01em;
}
.section--navy .kicker { color: var(--gold); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-gold { background: var(--gold); color: var(--navy-deep); }
.btn-gold:hover { background: var(--gold-dark); }
.btn-outline-navy { border-color: var(--navy); color: var(--navy); }
.btn-outline-navy:hover { background: var(--navy); color: #fff; }
.btn-outline-light { border-color: rgba(236, 233, 226, 0.4); color: #fff; }
.btn-outline-light:hover { background: rgba(236, 233, 226, 0.12); border-color: #fff; }

.link-quiet {
  font-weight: 600;
  font-size: 0.95rem;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}
.link-quiet:hover { opacity: 0.7; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: 1px solid var(--line-on-navy);
}
.header-inner {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: 76px;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
}
.brand { display: flex; align-items: center; gap: 0.65rem; flex-shrink: 0; }
.brand img { width: 40px; height: 40px; }
.brand-name {
  font-family: var(--font-display);
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.15;
}
.brand-name span { display: block; font-family: var(--font-body); font-weight: 400; font-size: 0.68rem; color: var(--gold); }

.main-nav {
  display: flex;
  gap: clamp(1rem, 2.4vw, 2rem);
  margin-left: 0.5rem;
}
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: rgba(236, 233, 226, 0.82);
  white-space: nowrap;
}
.main-nav a:hover { color: #fff; }

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
}
.phone-link {
  font-weight: 600;
  font-size: 0.92rem;
  color: #fff;
  display: none;
}
.nav-toggle {
  display: none;
  width: 32px;
  height: 24px;
  position: relative;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: #fff;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle::before { top: 0; }
.nav-toggle span { top: 11px; }
.nav-toggle::after { bottom: 0; }
.nav-toggle[aria-expanded="true"]::before { transform: translateY(11px) rotate(45deg); }
.nav-toggle[aria-expanded="true"]::after { transform: translateY(-11px) rotate(-45deg); }
.nav-toggle[aria-expanded="true"] span { opacity: 0; }

/* ---------- hero ---------- */
.hero { background: var(--navy); color: #fff; position: relative; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(236,233,226,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(236,233,226,0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}
.hero-grid {
  position: relative;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: clamp(2.5rem, 7vw, 5rem) clamp(2rem, 5vw, 3rem);
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}
.hero-copy { max-width: 36rem; }
.hero-copy h1 {
  color: #fff;
  font-size: clamp(2.3rem, 5.4vw, 3.6rem);
  line-height: 1.06;
  margin-bottom: 1.25rem;
}
.hero-lead {
  color: rgba(236, 233, 226, 0.82);
  font-size: 1.1rem;
  max-width: 34rem;
  margin-bottom: 2rem;
}
.hero-ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; margin-bottom: 2.75rem; }

.hero-media {
  position: relative;
  border-top: 2px solid var(--gold);
}
.hero-media img { width: 100%; height: clamp(220px, 42vw, 440px); object-fit: cover; }


.trust-strip {
  position: relative;
  border-top: 1px solid var(--line-on-navy);
  padding-block: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 2rem;
  font-size: 0.85rem;
  color: rgba(236, 233, 226, 0.6);
}
.trust-strip ul { display: flex; flex-wrap: wrap; gap: 1.75rem; }
.trust-strip li { font-family: var(--font-display); font-weight: 700; color: #fff; font-size: 0.95rem; }

/* ---------- portfolio ---------- */
.portfolio-grid {
  display: grid;
  gap: 1.75rem;
  margin-bottom: 2.75rem;
}
.portfolio-item { background: var(--paper); }
.portfolio-item img { width: 100%; height: 280px; object-fit: cover; }
.portfolio-item figcaption { padding-top: 1rem; border-top: 1px solid var(--line-on-stone); }
.portfolio-name { display: block; font-family: var(--font-display); font-weight: 700; color: var(--navy); font-size: 1.05rem; }
.portfolio-meta { display: block; color: var(--steel); font-size: 0.85rem; margin: 0.2rem 0 0.6rem; }
.portfolio-item figcaption p { color: var(--steel); font-size: 0.92rem; }

/* ---------- residencial split ---------- */
.split {
  display: grid;
  gap: clamp(2.5rem, 6vw, 4rem);
  align-items: center;
}
.plain-list { display: flex; flex-direction: column; gap: 0.9rem; margin: 1.75rem 0 2.25rem; max-width: 34rem; }
.plain-list li {
  position: relative;
  padding-left: 1.3rem;
  font-size: 1rem;
  color: rgba(236, 233, 226, 0.88);
}
.plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

.art-frame {
  border: 1px solid var(--line-on-navy);
  padding: clamp(1.5rem, 4vw, 3rem);
}

/* ---------- video cards ---------- */
.video-card {
  position: relative;
  width: 100%;
  max-width: 300px;
  aspect-ratio: 9 / 16;
  border-top: 2px solid var(--gold);
  background: var(--navy-deep);
  overflow: hidden;
}
.video-card video { width: 100%; height: 100%; object-fit: cover; }

.video-card--loop .sound-toggle {
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 15, 28, 0.55);
  border: 1px solid rgba(236, 233, 226, 0.4);
  color: #fff;
}
.video-card--loop .sound-toggle svg { width: 16px; height: 16px; }

.video-feature {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}
.video-feature-copy { flex: 1 1 18rem; }
.video-feature-copy h3 { color: var(--navy); font-size: 1.3rem; margin-bottom: 0.6rem; }
.section--navy .video-feature-copy h3 { color: #fff; }
.video-feature-copy p { color: var(--steel); font-size: 0.97rem; }
.section--navy .video-feature-copy p { color: rgba(236, 233, 226, 0.78); }

.backstage-row {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
  border-top: 1px solid var(--line-on-navy);
  padding-top: clamp(2rem, 5vw, 3rem);
  margin-top: clamp(2rem, 5vw, 3rem);
}
.backstage-row .video-card { max-width: 220px; }

/* ---------- services ---------- */
.services-list { border-top: 1px solid var(--line-on-stone); }
.service-row {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 1.25rem;
  padding-block: 2rem;
  border-bottom: 1px solid var(--line-on-stone);
  align-items: start;
}
.service-icon {
  width: 52px;
  height: 52px;
  color: var(--gold-dark);
}
.service-row h3 { font-size: 1.2rem; margin-bottom: 0.4rem; }
.service-row p { color: var(--steel); font-size: 0.97rem; margin-bottom: 0.9rem; max-width: 46ch; }

/* ---------- contact / final CTA ---------- */
.contact-grid {
  display: grid;
  gap: 2.5rem;
  border-top: 1px solid var(--line-on-navy);
  padding-top: 2.5rem;
  margin-top: 2.5rem;
}
.contact-col h3 {
  color: var(--gold);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
  font-family: var(--font-body);
}
.contact-col a, .contact-col p {
  display: block;
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.6rem;
}
.contact-col a:hover { color: var(--gold); }
.contact-col p { color: rgba(236, 233, 226, 0.7); max-width: 32rem; }

/* ---------- process list ---------- */
.process-list {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  counter-reset: process;
}
.process-item { position: relative; padding-left: 3.25rem; }
.process-item::before {
  counter-increment: process;
  content: counter(process);
  position: absolute;
  left: 0;
  top: -0.1em;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--gold);
}
.process-item h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.process-item p { color: rgba(236, 233, 226, 0.78); font-size: 0.95rem; }

/* ---------- faq ---------- */
.faq-list { max-width: 54rem; border-top: 1px solid var(--line-on-stone); }
.section--navy .faq-list { border-top-color: var(--line-on-navy); }
.faq-item { border-bottom: 1px solid var(--line-on-stone); padding-block: 1.15rem; }
.section--navy .faq-item { border-bottom-color: var(--line-on-navy); }
.faq-item summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--navy);
  font-size: 1.05rem;
  list-style: none;
}
.section--navy .faq-item summary { color: #fff; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--gold-dark);
  flex-shrink: 0;
}
.section--navy .faq-item summary::after { color: var(--gold); }
.faq-item[open] summary::after { content: "\2013"; }
.faq-item p { color: var(--steel); font-size: 0.97rem; margin-top: 0.85rem; max-width: 56ch; }
.section--navy .faq-item p { color: rgba(236, 233, 226, 0.78); }

/* ---------- lead form ---------- */
.lead-form-card {
  background: var(--navy-mid);
  border-top: 2px solid var(--gold);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}
.lead-form-card h3 { color: #fff; font-size: 1.2rem; margin-bottom: 0.5rem; }
.lead-form-card > p { color: rgba(236, 233, 226, 0.78); font-size: 0.95rem; margin-bottom: 1.5rem; }
.lead-form { display: flex; flex-direction: column; gap: 1.1rem; }
.form-row { display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label { font-size: 0.85rem; font-weight: 600; color: rgba(236, 233, 226, 0.85); }
.form-row input, .form-row select, .form-row textarea {
  font: inherit;
  font-size: 0.95rem;
  color: #fff;
  background: rgba(236, 233, 226, 0.06);
  border: 1px solid var(--line-on-navy);
  padding: 0.7rem 0.85rem;
  resize: vertical;
}
.form-row input::placeholder, .form-row textarea::placeholder { color: rgba(236, 233, 226, 0.4); }
.form-row select { appearance: auto; }
.lead-form .btn { justify-content: center; margin-top: 0.4rem; }
.lead-form .btn:disabled { opacity: 0.6; cursor: not-allowed; }
.form-status { font-size: 0.88rem; color: var(--gold); min-height: 1.2em; }
.form-status[data-state="error"] { color: #e8a0a0; }
.form-alt { text-align: center; font-size: 0.9rem; color: rgba(236, 233, 226, 0.7); margin-top: 1.25rem; }
.hero .lead-form-card { max-width: 26rem; }
@media (min-width: 860px) { .hero .lead-form-card { justify-self: end; width: 100%; } }

/* ---------- landing footer link ---------- */
.footer-inner .footer-home-link { color: rgba(236, 233, 226, 0.6); }
.footer-inner .footer-home-link:hover { color: #fff; }

/* ---------- footer ---------- */
.site-footer {
  background: var(--navy-deep);
  color: rgba(236, 233, 226, 0.6);
  padding-block: 2.5rem;
  font-size: 0.85rem;
}
.footer-inner {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}
.footer-inner a:hover { color: #fff; }

/* ---------- whatsapp tab ---------- */
.whatsapp-tab {
  position: fixed;
  right: 0;
  bottom: clamp(1.5rem, 6vh, 3rem);
  z-index: 150;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--gold);
  color: var(--navy-deep);
  padding: 0.85rem 1.1rem 0.85rem 1rem;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: -4px 0 16px rgba(6, 15, 28, 0.25);
}
.whatsapp-tab svg { width: 20px; height: 20px; }
.whatsapp-tab:hover { background: var(--gold-dark); }
.whatsapp-tab .wa-label { display: none; }

/* ============================================================
   Breakpoints
   ============================================================ */
@media (min-width: 620px) {
  .whatsapp-tab .wa-label { display: inline; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-item:first-child { grid-column: 1 / -1; }
  .portfolio-item:first-child img { height: 360px; }
  .contact-grid { grid-template-columns: repeat(3, 1fr); }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .services-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    column-gap: clamp(2rem, 4vw, 3.5rem);
  }
}

@media (min-width: 860px) {
  .phone-link { display: inline-block; }
  .hero-grid { grid-template-columns: 1.1fr 1fr; align-items: center; }
  .hero-media { border-top: none; border-left: 2px solid var(--gold); align-self: stretch; }
  .hero-media img { height: 100%; min-height: 420px; }
  .split { grid-template-columns: 1fr 0.9fr; }
  .split--reverse { direction: rtl; }
  .split--reverse > * { direction: ltr; }
}

@media (max-width: 1059px) {
  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--navy);
    flex-direction: column;
    padding: 0.5rem var(--gutter) 1.5rem;
    gap: 0.25rem;
    overflow-y: auto;
    display: none;
  }
  .main-nav[data-open="true"] { display: flex; }
  .main-nav a {
    padding-block: 0.9rem;
    border-bottom: 1px solid var(--line-on-navy);
    font-size: 1.05rem;
  }
  .nav-toggle { display: block; }
}

@media (min-width: 640px) {
  .hero-ctas .btn { font-size: 1rem; padding: 0.95rem 1.75rem; }
}