/* ═══════════════════════════════════════════════════════
   SALINA ENGENHARIA — style.css
   ═══════════════════════════════════════════════════════ */

/* ─── TOKENS ──────────────────────────────────────────── */
:root {
  --blue:      #2E5E82;
  --blue-dark: #1C3D56;
  --blue-mid:  #3A6F95;
  --blue-pale: #D6E8F5;
  --cream:     #F7F5F0;
  --sand:      #E8E2D5;
  --dark:      #141414;
  --text:      #2A2A2A;
  --muted:     #6B7280;
  --white:     #FFFFFF;
  --nav-h:     72px;
  --ease-out:  cubic-bezier(.2, 0, .3, 1);
}

/* ─── RESET ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Outfit', sans-serif;
  background: var(--cream);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ─── KEYFRAMES ───────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(7px); }
}
@keyframes triSpin {
  from { transform: translateY(-50%) rotate(0deg); }
  to   { transform: translateY(-50%) rotate(360deg); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-32px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,.35); }
  50%       { box-shadow: 0 4px 32px rgba(37,211,102,.6), 0 0 0 8px rgba(37,211,102,.08); }
}

/* ─── SCROLL-REVEAL ENGINE ───────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .75s var(--ease-out), transform .75s var(--ease-out);
}
.reveal.from-left  { transform: translateX(-32px); }
.reveal.from-right { transform: translateX(32px); }
.reveal.from-scale { transform: scale(.96); }
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ─── NAV ─────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(247,245,240,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(46,94,130,.1);
  transition: background .35s, box-shadow .35s;
  display: flex;
  align-items: center;
}
.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
nav.scrolled {
  background: rgba(247,245,240,.98);
  box-shadow: 0 2px 28px rgba(0,0,0,.08);
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo img { height: 58px; width: auto; }

.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
  font-size: 13px; font-weight: 500;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--blue-dark);
  transition: color .2s;
  position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -3px; left: 0; right: 0; height: 1px;
  background: var(--blue); transform: scaleX(0); transform-origin: left;
  transition: transform .25s var(--ease-out);
}
.nav-links a:hover { color: var(--blue); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
  background: var(--blue);
  color: var(--white) !important;
  padding: 9px 22px;
  border-radius: 2px;
  font-size: 13px !important;
  letter-spacing: 1px !important;
  transition: background .2s, transform .2s !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  background: var(--blue-dark) !important;
  color: var(--white) !important;
  transform: translateY(-1px) !important;
}

/* hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--blue-dark); transition: .3s; }
.mobile-menu {
  display: none; position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: var(--cream); padding: 24px 32px; flex-direction: column; gap: 20px;
  border-bottom: 1px solid var(--sand); z-index: 99;
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
  animation: fadeIn .2s ease;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 15px; font-weight: 500; color: var(--blue-dark);
  padding: 8px 0; border-bottom: 1px solid var(--sand);
  transition: color .2s, padding-left .2s;
}
.mobile-menu a:hover { color: var(--blue); padding-left: 6px; }

/* ─── HERO ────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: var(--blue-dark);
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding-top: var(--nav-h);
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(135deg, rgba(46,94,130,.4) 0%, transparent 60%),
    linear-gradient(to bottom, var(--blue-dark) 0%, #0F2535 100%);
}

/* moving grid lines */
.hero-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(46,94,130,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,94,130,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  animation: gridMove 24s linear infinite;
}
@keyframes gridMove {
  from { background-position: 0 0; }
  to   { background-position: 56px 56px; }
}

.hero-geo {
  position: absolute;
  right: -4vw; top: 50%; transform: translateY(-50%);
  width: 55vw; max-width: 720px;
  opacity: .07; pointer-events: none;
}
.hero-geo svg { width: 100%; height: auto; }

.hero-inner {
  position: relative; z-index: 2;
  max-width: 1160px; margin: 0 auto; padding: 0 48px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--blue-pale); margin-bottom: 24px;
  animation: slideInLeft .8s .1s both;
}
.hero-badge::before {
  content: ''; display: block; width: 28px; height: 1px; background: var(--blue-mid);
}

.hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(38px, 5vw, 64px);
  font-weight: 300; line-height: 1.15;
  color: var(--white); margin-bottom: 24px;
  letter-spacing: -.5px;
  animation: fadeUp .9s .25s both;
}
.hero h1 em { font-style: italic; color: var(--blue-pale); }

.hero > .hero-inner > .hero-left > p {
  font-size: 16px; font-weight: 300; line-height: 1.8;
  color: rgba(255,255,255,.65); max-width: 460px; margin-bottom: 40px;
  animation: fadeUp .9s .4s both;
}

.hero-actions {
  display: flex; gap: 16px; flex-wrap: wrap;
  animation: fadeUp .9s .55s both;
}

.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--white); color: var(--blue-dark);
  padding: 14px 28px; font-size: 13px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase;
  border-radius: 2px;
  position: relative; overflow: hidden;
  transition: color .3s, transform .2s, box-shadow .3s;
  box-shadow: 0 4px 20px rgba(0,0,0,.15);
}
.btn-primary::before {
  content: ''; position: absolute; inset: 0;
  background: var(--blue-dark);
  transform: translateX(-101%);
  transition: transform .38s cubic-bezier(.7,0,.3,1);
}
.btn-primary:hover::before { transform: translateX(0); }
.btn-primary:hover { color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.22); }
.btn-primary svg, .btn-primary span { position: relative; z-index: 1; }

.btn-outline {
  display: inline-flex; align-items: center; gap: 10px;
  border: 1px solid rgba(255,255,255,.3); color: rgba(255,255,255,.85);
  padding: 14px 28px; font-size: 13px; font-weight: 500;
  letter-spacing: 1px; text-transform: uppercase;
  border-radius: 2px; transition: border-color .25s, color .25s, transform .2s;
}
.btn-outline:hover { border-color: rgba(255,255,255,.7); color: var(--white); transform: translateY(-2px); }

/* hero right cards */
.hero-right { display: flex; flex-direction: column; gap: 16px; animation: fadeUp .9s .45s both; }

.hero-stat {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 4px;
  padding: 20px 24px;
  display: flex; align-items: center; gap: 20px;
  backdrop-filter: blur(6px);
  position: relative; overflow: hidden;
  transition: background .3s, border-color .3s, transform .3s;
}
.hero-stat::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(to bottom, transparent, var(--blue-mid), transparent);
  transform: scaleY(0); transform-origin: center;
  transition: transform .4s;
}
.hero-stat:hover { background: rgba(255,255,255,.08); border-color: rgba(46,94,130,.3); transform: translateX(-4px); }
.hero-stat:hover::before { transform: scaleY(1); }

.stat-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: rgba(46,94,130,.4);
  border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
}
.stat-icon svg { width: 22px; height: 22px; stroke: var(--blue-pale); }
.stat-label { font-size: 13px; color: rgba(255,255,255,.5); margin-bottom: 2px; }
.stat-value { font-size: 17px; font-weight: 500; color: var(--white); }

.hero-scroll {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,.3); font-size: 10px; letter-spacing: 2px;
  text-transform: uppercase; animation: bounce 2.2s ease-in-out infinite;
}
.hero-scroll svg { width: 16px; opacity: .4; }

/* ─── SECTION SHARED ──────────────────────────────────── */
section { padding: 100px 48px; }
.container { max-width: 1160px; margin: 0 auto; }

.section-label {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--blue); margin-bottom: 16px; font-weight: 500;
}
.section-label::before { content: ''; display: block; width: 20px; height: 1px; background: var(--blue); }

h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 400; line-height: 1.2; color: var(--blue-dark);
}
h2 em { font-style: italic; }

/* ─── SOBRE ───────────────────────────────────────────── */
#sobre {
  background: var(--white);
  border-top: 1px solid var(--sand);
  position: relative; overflow: hidden;
}
#sobre::after {
  content: '';
  position: absolute; top: -160px; right: -160px;
  width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(circle, rgba(46,94,130,.04) 0%, transparent 70%);
  pointer-events: none;
}

.sobre-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.sobre-left h2 { margin-bottom: 24px; }
.sobre-left p { color: var(--muted); line-height: 1.9; margin-bottom: 16px; }
.sobre-left p strong { color: var(--blue-dark); font-weight: 600; }

.sobre-right { display: grid; grid-template-columns: 1fr; gap: 16px; }

.sobre-card {
  background: var(--cream);
  border: 1px solid var(--sand);
  border-radius: 4px;
  padding: 24px;
  position: relative; overflow: hidden;
  transition: border-color .3s, transform .4s var(--ease-out), box-shadow .4s;
}
.sobre-card::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(46,94,130,.05), transparent);
  opacity: 0; transition: opacity .3s;
}
.sobre-card:hover { border-color: rgba(46,94,130,.2); transform: translateY(-4px); box-shadow: 0 14px 40px rgba(46,94,130,.1); }
.sobre-card:hover::after { opacity: 1; }
.sobre-card:first-child { background: var(--blue-dark); border-color: var(--blue-dark); }
.sobre-card:first-child .card-title { color: var(--white); }
.sobre-card:first-child .card-text  { color: rgba(255,255,255,.6); }
.sobre-card:first-child .card-icon svg { stroke: var(--blue-pale); }

.card-icon { margin-bottom: 14px; }
.card-icon svg { width: 28px; height: 28px; stroke: var(--blue); }
.card-title { font-size: 15px; font-weight: 600; color: var(--blue-dark); margin-bottom: 6px; }
.card-text  { font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ─── SERVIÇOS ────────────────────────────────────────── */
#servicos { background: var(--cream); position: relative; overflow: hidden; }

.servicos-header { margin-bottom: 56px; max-width: 600px; }
.servicos-header h2 { margin-bottom: 16px; }
.servicos-header p { color: var(--muted); }

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

.servico-item {
  background: var(--white);
  padding: 36px 32px;
  border: 1px solid var(--sand);
  position: relative; overflow: hidden;
  cursor: default;
  transition: border-color .3s;
}
/* liquid fill on hover */
.servico-item::before {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 0;
  background: var(--blue-dark);
  transition: height .45s cubic-bezier(.7,0,.3,1);
  z-index: 0;
}
.servico-item:hover::before { height: 100%; }
.servico-item > * { position: relative; z-index: 1; }

.servico-item:hover .s-num   { color: rgba(255,255,255,.2); }
.servico-item:hover .s-title { color: var(--white); }
.servico-item:hover .s-desc  { color: rgba(255,255,255,.5); }
.servico-item:hover .s-icon svg { stroke: var(--blue-pale); }

.s-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 18px; }
.s-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 13px; color: var(--sand); letter-spacing: 1px;
  transition: color .3s;
}
.s-icon svg { width: 28px; height: 28px; stroke: var(--blue); stroke-width: 1.5; transition: stroke .3s; }
.s-title { font-size: 16px; font-weight: 600; color: var(--blue-dark); margin-bottom: 10px; transition: color .3s; }
.s-desc  { font-size: 13.5px; color: var(--muted); line-height: 1.7; transition: color .3s; }

/* ─── DIFERENCIAIS ────────────────────────────────────── */
#diferenciais {
  background: var(--blue-dark);
  color: var(--white);
  position: relative; overflow: hidden;
}
#diferenciais::before {
  content: '';
  position: absolute; top: -120px; right: -80px;
  width: 500px; height: 500px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.04);
}
#diferenciais::after {
  content: '';
  position: absolute; bottom: -80px; left: -60px;
  width: 300px; height: 300px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.04);
}

.diff-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 80px; align-items: start; }
.diff-left .section-label { color: var(--blue-pale); }
.diff-left .section-label::before { background: var(--blue-pale); }
.diff-left h2 { color: var(--white); margin-bottom: 24px; }
.diff-left p  { color: rgba(255,255,255,.55); font-size: 15px; }

.diff-items { display: flex; flex-direction: column; }
.diff-item {
  display: flex; gap: 24px; align-items: flex-start;
  padding: 28px 0; border-bottom: 1px solid rgba(255,255,255,.07);
  position: relative;
  transition: padding-left .35s var(--ease-out);
}
.diff-item::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: var(--blue-mid); transform: scaleY(0); transform-origin: top;
  transition: transform .4s var(--ease-out);
}
.diff-item:hover { padding-left: 14px; }
.diff-item:hover::before { transform: scaleY(1); }
.diff-item:first-child { padding-top: 0; }
.diff-item:last-child  { border-bottom: none; }

.diff-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 32px; color: rgba(255,255,255,.12); line-height: 1;
  flex-shrink: 0; width: 40px;
  transition: color .3s;
}
.diff-item:hover .diff-num { color: rgba(255,255,255,.25); }
.diff-text h3 { font-size: 16px; font-weight: 600; color: var(--white); margin-bottom: 8px; }
.diff-text p  { font-size: 14px; color: rgba(255,255,255,.5); line-height: 1.7; }

/* ─── CONTATO ─────────────────────────────────────────── */
#contato { background: var(--white); }

.contato-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.contato-left h2 { margin-bottom: 16px; }
.contato-left > p { color: var(--muted); margin-bottom: 44px; }

.contato-items { display: flex; flex-direction: column; gap: 20px; }
.contato-item {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 16px 18px; background: var(--cream);
  border: 1px solid var(--sand); border-radius: 4px;
  transition: transform .3s var(--ease-out), box-shadow .3s, border-color .3s;
}
.contato-item:hover {
  transform: translateX(6px);
  box-shadow: -3px 0 0 var(--blue), 0 6px 20px rgba(46,94,130,.1);
  border-color: rgba(46,94,130,.15);
}

.ci-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--white); border: 1px solid var(--sand);
  border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
}
.ci-icon svg { width: 20px; height: 20px; stroke: var(--blue); }
.ci-label { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.ci-value { font-size: 15px; font-weight: 500; color: var(--blue-dark); }
.ci-value a { transition: color .2s; }
.ci-value a:hover { color: var(--blue); }

.contato-right {
  background: var(--blue-dark);
  border-radius: 6px;
  padding: 40px;
  position: relative; overflow: hidden;
}
.contato-right::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.06);
}
.contato-right::after {
  content: ''; position: absolute; bottom: -80px; left: -40px;
  width: 250px; height: 250px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.04);
}
.contato-right h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 26px; color: var(--white); margin-bottom: 8px;
  position: relative; z-index: 1;
}
.contato-right > p { color: rgba(255,255,255,.5); font-size: 14px; margin-bottom: 28px; position: relative; z-index: 1; }

.cta-block { display: flex; flex-direction: column; gap: 14px; position: relative; z-index: 1; }

.cta-btn {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 20px;
  border-radius: 3px;
  font-size: 14px; font-weight: 500;
  position: relative; overflow: hidden;
  transition: transform .25s, box-shadow .25s, opacity .25s;
}
.cta-btn:hover { transform: translateY(-2px); opacity: .92; box-shadow: 0 8px 24px rgba(0,0,0,.25); }
.cta-btn svg { width: 20px; height: 20px; flex-shrink: 0; }

.cta-wpp   { background: #25D366; color: var(--white); animation: pulseGlow 2.8s ease-in-out infinite; }
.cta-email { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15); color: var(--white); }
.cta-ig    { background: linear-gradient(135deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888); color: var(--white); }

.cta-region {
  margin-top: 20px; padding: 14px 16px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 3px;
  font-size: 13px; color: rgba(255,255,255,.45);
  display: flex; gap: 10px; align-items: center;
  position: relative; z-index: 1;
}
.cta-region svg { width: 16px; height: 16px; stroke: var(--blue-pale); flex-shrink: 0; }

/* ─── WATERMARKS ──────────────────────────────────────── */
.wm {
  position: absolute;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
.wm img { display: block; }

#sobre, #servicos, #diferenciais, #contato, footer { position: relative; overflow: hidden; }
#sobre .container, #servicos .container,
#diferenciais .container, #contato .container { position: relative; z-index: 1; }

.wm-sobre    { right: -80px; bottom: -80px; width: 400px; opacity: .04; transform: rotate(-12deg); }
.wm-serv-l   { left: -100px; top: 50%; transform: translateY(-50%); width: 360px; opacity: .035; }
.wm-serv-r   { right: -60px; bottom: -60px; width: 240px; opacity: .045; transform: rotate(15deg); }
.wm-diff-tl  { left: -40px; top: -60px; width: 300px; opacity: .055; transform: rotate(-20deg); }
.wm-diff-br  { right: -80px; bottom: -80px; width: 480px; opacity: .035; filter: blur(1px); }
.wm-contato  { left: 50%; top: 50%; transform: translate(-50%,-50%); width: 560px; opacity: .03; }

/* ─── FOOTER ──────────────────────────────────────────── */
footer {
  background: var(--dark);
  color: rgba(255,255,255,.35);
  font-size: 13px;
  position: relative; overflow: hidden;
}

/* linha decorativa topo */
footer::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), rgba(46,94,130,.4), transparent);
}

footer .footer-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 52px 48px 32px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  position: relative; z-index: 1;
}

footer .f-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}
footer .f-logo img {
  height: 44px; width: auto; opacity: .55;
}
footer .f-slogan {
  font-size: 12px;
  color: rgba(255,255,255,.28);
  font-style: italic;
  letter-spacing: .4px;
  white-space: nowrap;
}

/* divisor central vertical */
footer .f-divider {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,.12), transparent);
  justify-self: center;
  display: none;
}

/* bloco central com copyright e crédito */
footer .f-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}
footer .f-copy {
  font-size: 12.5px;
  color: rgba(255,255,255,.3);
  letter-spacing: .3px;
}
footer .f-credit {
  font-size: 12px;
  color: rgba(255,255,255,.22);
}
footer .f-credit a {
  color: var(--blue-mid);
  font-weight: 600;
  letter-spacing: .2px;
  transition: color .2s;
}
footer .f-credit a:hover { color: var(--blue-pale); }

/* links redes sociais lado direito */
footer .f-socials {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
footer .f-social-link {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: rgba(255,255,255,.3);
  transition: color .2s;
}
footer .f-social-link:hover { color: rgba(255,255,255,.7); }
footer .f-social-link svg { width: 14px; height: 14px; stroke: currentColor; }

/* marca d'água footer */
.wm-footer {
  left: 50%; top: 50%; transform: translate(-50%,-50%);
  width: 480px; opacity: .04;
}

@media (max-width: 900px) {
  footer .footer-inner {
    grid-template-columns: 1fr;
    padding: 40px 24px 28px;
    text-align: center;
    gap: 24px;
  }
  footer .f-logo { align-items: center; }
  footer .f-socials { align-items: center; }
}

/* ─── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 900px) {
  .nav-inner { padding: 0 24px; }
  .nav-links  { display: none; }
  .hamburger  { display: flex; }
  section { padding: 72px 24px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-right { display: none; }
  .sobre-grid, .diff-grid, .contato-grid { grid-template-columns: 1fr; gap: 48px; }
  footer .footer-inner { padding: 32px 24px; flex-direction: column; text-align: center; }
}
@media (max-width: 560px) {
  .servicos-grid { grid-template-columns: 1fr; }
  .hero-actions  { flex-direction: column; }
  .btn-primary, .btn-outline { justify-content: center; }
}