/* ============================================================
   C5X TECH — components & sections (light theme + dark bands)
   ============================================================ */

/* ===== Header (sticky, light, uppercase bold) ===== */
.header {
  position: sticky; top: 0; width: 100%; z-index: 100;
  background: rgba(241, 238, 236, 0.82);
  backdrop-filter: saturate(140%) blur(16px);
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.header.scrolled { box-shadow: 0 6px 24px -16px rgba(36,25,20,0.4); border-bottom-color: var(--line); }
.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
  max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter);
}

/* wordmark */
.brand { display: inline-flex; align-items: baseline; gap: 0; font-family: var(--font-display); font-weight: 800; letter-spacing: -0.03em; font-size: 1.4rem; color: var(--ink); text-transform: none; }
.brand .x { color: var(--accent); }
.brand__img { display: block; height: 34px; width: auto; }
.brand__img--footer { height: 80px; max-width: 100%; width: auto; margin-bottom: 14px; }
@media (max-width: 640px) { .brand__img--footer { height: auto; width: 220px; max-width: 100%; } }
.brand .sub { font-family: var(--font-display); font-weight: 700; font-size: 0.66rem; letter-spacing: 0.3em; color: var(--ink-faint); margin-left: 0.55em; transform: translateY(-0.5em); }

.nav { display: flex; align-items: center; gap: clamp(10px, 1.3vw, 20px); }
.nav a {
  font-family: var(--font-display); font-weight: 700; font-size: 0.74rem;
  text-transform: uppercase; letter-spacing: 0.03em; color: var(--ink);
  white-space: nowrap;
  position: relative; padding-block: 6px; transition: color 0.3s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--accent); transition: width 0.35s var(--ease);
}
.nav a:hover { color: var(--accent); }
.nav a:hover::after { width: 100%; }

.header__cta { display: flex; align-items: center; gap: 14px; }
.btn--sm { padding: 0.78em 1.3em; font-size: 0.74rem; }

.burger { display: none; width: 42px; height: 42px; flex-direction: column; justify-content: center; gap: 5px; align-items: flex-end; }
.burger span { display: block; height: 2px; background: var(--ink); transition: all 0.4s var(--ease); }
.burger span:nth-child(1) { width: 24px; }
.burger span:nth-child(2) { width: 17px; }
body.menu-open .burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); width: 24px; }
body.menu-open .burger span:nth-child(2) { transform: translateY(-7px) rotate(-45deg); width: 24px; }

/* mobile drawer */
.drawer {
  position: fixed; inset: 0; z-index: 90;
  background: #262626;
  display: flex; flex-direction: column; justify-content: center;
  padding: var(--gutter);
  opacity: 0; visibility: hidden; transition: opacity 0.45s var(--ease), visibility 0.45s;
}
body.menu-open .drawer { opacity: 1; visibility: visible; }
.drawer a {
  font-family: var(--font-display); font-size: clamp(1.6rem, 7vw, 2.3rem); font-weight: 800;
  text-transform: uppercase; letter-spacing: -0.01em; color: #f5f3f1; padding-block: 0.3em;
  border-bottom: 1px solid rgba(255,255,255,0.1); transition: color 0.3s, padding-left 0.4s var(--ease);
}
.drawer a:hover { color: var(--accent); padding-left: 0.4em; }
.drawer { display: flex; flex-direction: column; justify-content: center; align-items: stretch; padding: 0 8vw; gap: 0; }
.drawer nav { display: flex; flex-direction: column; }
.drawer__cta { display: flex; flex-direction: column; align-items: center; gap: 18px; margin-top: 36px; }
.drawer__link { font-family: var(--font-display); font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.55); border: none !important; padding: 0 !important; }
.drawer__link:hover { color: var(--accent); padding-left: 0 !important; }
.drawer__cta .btn { width: 100%; max-width: 340px; justify-content: center; }

/* ===== HERO (dark, image bg) ===== */
.hero { position: relative; min-height: 86vh; display: flex; align-items: center; overflow: hidden; background: #161310; }
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg-base { position: absolute; inset: 0; height: 100%; background: #0d0b0a; }
.hero__bg::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(8,7,10,0.88) 0%, rgba(8,7,10,0.58) 34%, rgba(8,7,10,0.12) 56%, rgba(8,7,10,0.32) 100%),
    linear-gradient(180deg, rgba(8,7,10,0.45) 0%, transparent 24%, transparent 72%, rgba(8,7,10,0.62) 100%);
}
.hero__grid {
  position: absolute; inset: 0; z-index: 1; pointer-events: none; opacity: 0.4;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: clamp(70px, 8vw, 120px) clamp(70px, 8vw, 120px);
  -webkit-mask-image: radial-gradient(80% 80% at 50% 40%, #000 30%, transparent 78%);
  mask-image: radial-gradient(80% 80% at 50% 40%, #000 30%, transparent 78%);
}
.hero__content { position: relative; z-index: 2; width: 100%; }
.hero .container { width: 100%; }

/* hero eyebrow as bordered pill */
.hero__eyebrow {
  display: inline-block; padding: 0.55em 1.15em; border: 1px solid var(--accent);
  color: var(--accent); font-family: var(--font-display); font-weight: 700;
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: clamp(20px, 3vw, 28px); border-radius: var(--radius);
}
.hero__eyebrow::before { display: none; }
.hero h1 { margin-bottom: clamp(20px, 3vw, 28px); color: #fff; }
.hero__lead { margin-bottom: clamp(28px, 4vw, 40px); color: rgba(255,255,255,0.82); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

/* scroll cue */
.scrollcue { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 3;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.22em; color: rgba(255,255,255,0.5);
  display: flex; flex-direction: column; align-items: center; gap: 10px; text-transform: uppercase; }
.scrollcue .bar { width: 1px; height: 44px; background: linear-gradient(rgba(255,255,255,0.4), transparent); position: relative; overflow: hidden; }
.scrollcue .bar::after { content:""; position:absolute; top:-50%; left:0; width:1px; height:50%; background: var(--accent); animation: cue 2.4s var(--ease) infinite; }
@keyframes cue { 0%{transform:translateY(-100%);} 60%,100%{transform:translateY(300%);} }

/* hero variants */
.hero-variant { display: none; }
:root[data-hero="a"] .hero-variant[data-variant="a"],
:root[data-hero="b"] .hero-variant[data-variant="b"],
:root[data-hero="c"] .hero-variant[data-variant="c"] { display: flex; }

/* A — Editorial */
.heroA .hero__inner { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(30px, 5vw, 80px); align-items: end; padding-block: 96px 52px; }
.heroA h1 { font-size: clamp(2.2rem, 4.8vw, 4.4rem); }
.heroA .hero__stats { display: flex; flex-direction: column; gap: 0; border-top: 1px solid rgba(255,255,255,0.18); }
.heroA .hstat { padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
.heroA .hstat b { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(1.5rem, 2.4vw, 2.1rem); letter-spacing: -0.02em; color: #fff; }
.heroA .hstat span { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; color: rgba(255,255,255,0.55); text-transform: uppercase; }

/* B — Centered */
.heroB { justify-content: center; text-align: center; padding-top: 72px; }
.heroB .hero__inner { max-width: 980px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; }
.heroB h1 { font-size: clamp(2.4rem, 5.4vw, 5rem); }
.heroB .lead { margin-inline: auto; text-align: center; }
.heroB .hero__actions { justify-content: center; }

/* C — Split technical */
.heroC .hero__inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(30px, 5vw, 70px); align-items: center; padding-top: 80px; }
.heroC .panel { border: 1px solid rgba(255,255,255,0.18); background: rgba(255,255,255,0.04); padding: clamp(22px, 2.5vw, 34px); border-radius: var(--radius); }
.heroC .panel__row { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
.heroC .panel__row:last-child { border-bottom: none; }
.heroC .panel__row .k { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; color: rgba(255,255,255,0.55); text-transform: uppercase; }
.heroC .panel__row .v { font-family: var(--font-display); font-weight: 600; font-size: 1rem; color: #fff; }
.heroC .panel__row .v.live { display: inline-flex; align-items: center; gap: 8px; }
.heroC .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 2.6s var(--ease) infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 var(--accent-glow);} 70%{box-shadow:0 0 0 9px transparent;} 100%{box-shadow:0 0 0 0 transparent;} }

/* hero entrance */
.anim .hero [data-anim] { opacity: 0; transform: translateY(26px); }
.anim .hero.ready [data-anim] {
  animation: heroIn calc(1s * var(--motion) + 0.001s) var(--ease) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes heroIn { to { opacity: 1; transform: none; } }

/* ===== Marquee ===== */
.marquee { overflow: hidden; position: relative; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; width: max-content; gap: clamp(40px, 6vw, 90px); animation: scroll-x var(--dur, 38s) linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes scroll-x { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }
.logo-word { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.05rem, 1.6vw, 1.45rem); letter-spacing: -0.01em; color: var(--ink-faint); white-space: nowrap; transition: color 0.4s var(--ease); }
.logo-word:hover { color: var(--accent); }

/* ===== Trust badges ===== */
.badges { display: flex; flex-wrap: wrap; gap: 14px; }
.badge {
  display: inline-flex; flex-direction: column; gap: 4px;
  padding: 16px 22px; border: 1px solid var(--line); background: var(--surface);
  border-radius: var(--radius); min-width: 134px;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.badge:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 12px 30px -18px var(--accent-glow); }
.badge b { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; letter-spacing: -0.01em; color: var(--ink); }
.badge span { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em; color: var(--ink-faint); text-transform: uppercase; }

/* ===== Section header ===== */
.sec-head { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: clamp(36px, 4.5vw, 60px); }
.sec-head.split { grid-template-columns: 1.2fr 1fr; align-items: end; gap: 30px; }
.sec-head .title { margin-top: 8px; }
.sec-head.center { text-align: center; justify-items: center; }
.sec-head.center .eyebrow { justify-content: center; }

/* ===== Metrics ===== */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 2px solid var(--ink); }
.metric { padding: clamp(26px,3vw,38px) 20px clamp(26px,3vw,38px) 0; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line-soft); }
.metric:last-child { border-right: none; }
.metric b { display: block; white-space: nowrap; font-family: var(--font-display); font-weight: 800; font-size: clamp(2.4rem, 4.4vw, 3.7rem); letter-spacing: -0.03em; line-height: 1; color: var(--ink); }
.metric b.compact { font-size: clamp(1.9rem, 3vw, 2.7rem); }
.metric .u { color: var(--accent); }
.metric span { display: block; margin-top: 12px; font-size: 0.92rem; color: var(--ink-dim); max-width: 22ch; }

/* ===== Quem Somos ===== */
.about { display: grid; grid-template-columns: 1fr; gap: clamp(28px, 4vw, 44px); }
.about__media { aspect-ratio: 21/10; border-radius: var(--radius); width: 100%; }
.about__copy p + p { margin-top: 1.1em; }
.about__copy .lead { margin-bottom: 1.3em; }
.team { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 36px; }
.team .frame { padding: 24px; border-left: 3px solid var(--accent); }
.team .frame .num { font-family: var(--font-mono); font-size: 0.66rem; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; }
.team .frame h3 { margin: 12px 0 8px; font-size: 1.12rem; }

/* ===== Solutions ===== */
.approach { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.approach .frame { padding: clamp(26px, 3vw, 40px); display: flex; flex-direction: column; gap: 14px; min-height: 240px; border-left: 4px solid var(--accent); transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease); }
.approach .frame:nth-child(2) { border-left-color: var(--ink-faint); }
.approach .frame:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -24px rgba(36,25,20,0.45); }
.approach .idx { font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-faint); letter-spacing: 0.12em; text-transform: uppercase; }
.approach .frame h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); margin-top: auto; text-transform: uppercase; font-weight: 700; }
.approach .frame p { font-size: 0.96rem; }

/* tech grid (dark band) */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tech {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(26px, 2.6vw, 36px);
  display: flex; flex-direction: column; gap: 14px; min-height: 220px;
  position: relative; transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.tech:hover { border-color: var(--accent); background: var(--surface); }
.tech__no { font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-faint); letter-spacing: 0.1em; }
.tech h3 { font-size: 1.18rem; font-weight: 600; margin-top: auto; }
.tech p { font-size: 0.9rem; line-height: 1.5; }
.tech__glyph { width: 64px; height: 64px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: radial-gradient(120% 120% at 30% 25%, #e2842f 0%, #c85f14 55%, #a34a0d 100%); box-shadow: 0 6px 16px -4px rgba(0,0,0,0.45), inset 0 1px 1px rgba(255,255,255,0.25); }
.tech__glyph svg { width: 30px; height: 30px; stroke: #241206; fill: none; stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; }

/* ===== Segmentos ===== */
.segs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.seg { position: relative; aspect-ratio: 3/4; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--line); }
.seg .ph { position: absolute; inset: 0; height: 100%; border: none; }
.seg__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.7s var(--ease); }
.seg::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, transparent 40%, rgba(20,12,8,0.35) 72%, rgba(20,12,8,0.85) 100%); }
.seg:hover .seg__img { transform: scale(1.05); }
.seg__label { position: absolute; inset: auto 0 0 0; z-index: 2; padding: 20px; background: linear-gradient(transparent, rgba(20,12,8,0.9)); }
.seg__label h3 { font-size: 1.02rem; font-weight: 700; color: #fff; text-transform: uppercase; letter-spacing: 0.01em; }
.seg__label span { font-family: var(--font-mono); font-size: 0.6rem; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; }

/* ===== Operação 24h (dark) ===== */
.ops { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px,5vw,72px); align-items: center; }
.ops__media { position: relative; aspect-ratio: 5/4; border: 1px solid var(--line); border-radius: var(--radius); }
.ops__media .ph { position: absolute; inset: 0; height: 100%; border: none; }
.ops__hud { position: absolute; inset: 18px; z-index: 2; display: flex; flex-direction: column; justify-content: space-between; pointer-events: none; }
.ops__hud .row { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.13em; color: rgba(255,255,255,0.6); text-transform: uppercase; }
.ops__hud .live { color: var(--accent); display: inline-flex; align-items: center; gap: 7px; }
.ops__hud .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: pulse 2.6s var(--ease) infinite; }
.ops__list { margin-top: 28px; border-top: 1px solid var(--line); }
.ops__list li { list-style: none; display: flex; gap: 18px; align-items: baseline; padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.ops__list .k { font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent); letter-spacing: 0.08em; flex-shrink: 0; width: 30px; }
.ops__list .t strong { display: block; color: var(--ink); font-weight: 600; margin-bottom: 3px; text-transform: uppercase; letter-spacing: 0.01em; font-size: 0.98rem; }
.ops__list .t span { font-size: 0.92rem; color: var(--ink-dim); }

/* ===== Cases (portfolio grid) ===== */
.cases { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; grid-auto-flow: dense; }
.case { position: relative; overflow: hidden; border-radius: var(--radius); display: flex; flex-direction: column; justify-content: flex-end; min-height: 240px; background: #1c1916; }
.case .ph { position: absolute; inset: 0; height: 100%; border: none; z-index: 0; filter: grayscale(0.5); transition: filter 0.6s var(--ease), transform 0.7s var(--ease);
  background-color: #1c1916;
  background-image: repeating-linear-gradient(135deg, rgba(255,255,255,0.03) 0px, rgba(255,255,255,0.03) 1px, transparent 1px, transparent 9px); }
.case .ph::after { color: rgba(255,255,255,0.34); }
.case:hover .ph { filter: grayscale(0); transform: scale(1.05); }
.case::after { content:""; position:absolute; inset:0; z-index:1; background: linear-gradient(180deg, transparent 25%, rgba(20,12,8,0.5) 65%, rgba(20,12,8,0.92) 100%); }
.case__body { position: relative; z-index: 2; padding: clamp(20px, 2vw, 30px); }
.case__tag { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em; color: var(--accent); text-transform: uppercase; }
.case h3 { font-size: clamp(1.1rem, 1.6vw, 1.45rem); font-weight: 700; margin-top: 10px; color: #fff; text-transform: uppercase; letter-spacing: -0.005em; }
.case .seg-tag { font-size: 0.82rem; color: rgba(255,255,255,0.7); margin-top: 6px; }
.case--xl { grid-column: span 4; min-height: 440px; }
.case--lg { grid-column: span 2; min-height: 440px; }
.case--md { grid-column: span 2; min-height: 280px; }
.case--wide { grid-column: span 3; min-height: 300px; }

/* ===== Ecossistema ===== */
.platforms { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 52px; }
.platform { border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); padding: clamp(26px,2.6vw,36px); border-top: 3px solid var(--accent); transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease); }
.platform:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -24px rgba(36,25,20,0.4); }
.platform .pname { font-family: var(--font-display); font-weight: 800; font-size: 1.35rem; letter-spacing: -0.01em; color: var(--ink); }
.platform .ptype { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em; color: var(--accent); text-transform: uppercase; margin-top: 5px; display: block; }
.platform p { margin-top: 16px; font-size: 0.92rem; }
.partners-rule { border-top: 1px solid var(--line); padding-top: 30px; }

/* ===== Insights ===== */
.insights { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.insight { border-top: 2px solid var(--line); padding-top: 22px; transition: border-color 0.4s var(--ease); cursor: pointer; }
.insight:hover { border-top-color: var(--accent); }
.insight .meta { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em; color: var(--ink-faint); text-transform: uppercase; }
.insight h3 { font-size: 1.18rem; font-weight: 600; margin: 16px 0 14px; line-height: 1.25; }
.insight .more { font-size: 0.74rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-dim); display: inline-flex; gap: 6px; align-items: center; transition: gap 0.3s var(--ease), color 0.3s; }
.insight:hover .more { color: var(--accent); gap: 11px; }

/* ===== Contato (dark) ===== */
.contact { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(36px,5vw,72px); }
.contact__info .line { padding: 20px 0; border-bottom: 1px solid var(--line-soft); }
.contact__info .line:first-of-type { border-top: 1px solid var(--line); }
.contact__info .k { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.13em; color: var(--ink-faint); text-transform: uppercase; display: block; margin-bottom: 6px; }
.contact__info .v { font-size: 1.05rem; color: var(--ink); }
.contact__info a.v:hover { color: var(--accent); }

.form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.12em; color: var(--ink-faint); text-transform: uppercase; }
.field input, .field textarea, .field select {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  color: var(--ink); font-family: var(--font-body); font-size: 1rem; padding: 14px 16px;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease); width: 100%;
}
.field select { color: var(--ink-dim); cursor: pointer; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-faint); }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.field textarea { resize: vertical; min-height: 110px; }
.field.invalid input, .field.invalid textarea { border-color: #ef7a4a; }
.field .err { font-family: var(--font-mono); font-size: 0.64rem; color: #ef7a4a; opacity: 0; height: 0; transition: opacity 0.3s; }
.field.invalid .err { opacity: 1; height: auto; }
.form__submit { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 6px; }
.form__note { font-size: 0.8rem; color: var(--ink-faint); }
#form-submit-btn[disabled] { opacity: 0.6; cursor: progress; pointer-events: none; }

/* feedback blocks (success / error) */
.form-feedback { grid-column: 1 / -1; border-radius: 8px; padding: 16px 18px; margin-top: 14px; display: none; }
.form-feedback.show { display: block; }
.form-feedback strong { display: block; font-weight: 600; font-size: 1rem; margin-bottom: 6px; }
.form-feedback p { font-size: 0.92rem; line-height: 1.5; margin: 0; }
.form-feedback--ok { background: rgba(230,106,30,0.08); border: 1px solid var(--accent); color: #ffffff; }
.form-feedback--ok strong { color: var(--accent); }
.form-feedback--ok p { color: rgba(255,255,255,0.82); }
.form-feedback--err { background: rgba(220,60,40,0.10); border: 1px solid #d8553a; color: #ffffff; }
.form-feedback--err strong { color: #ef7a4a; }
.form-feedback--err p { color: rgba(255,255,255,0.78); }
/* entrance: opacity/y/blur ~0.8s power3-like, runs once when revealed via JS */
.form-feedback.show { animation: feedbackIn 0.8s cubic-bezier(0.215, 0.61, 0.355, 1) both; }
@keyframes feedbackIn { from { opacity: 0; transform: translateY(20px); filter: blur(6px); } to { opacity: 1; transform: none; filter: blur(0); } }
@media (prefers-reduced-motion: reduce) { .form-feedback.show { animation: none; } }

/* ===== Footer (dark) ===== */
.footer { background: #1c1916; padding-block: clamp(48px,6vw,76px) 36px; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 56px; }
.footer__brand .brand { font-size: 1.55rem; margin-bottom: 18px; color: #f5f3f1; }
.footer__brand .brand .sub { color: rgba(255,255,255,0.4); }
.footer__brand p { font-size: 0.92rem; max-width: 34ch; color: rgba(255,255,255,0.55); }
.footer__col h4 { font-family: var(--font-display); font-size: 0.68rem; letter-spacing: 0.13em; color: rgba(255,255,255,0.45); text-transform: uppercase; margin-bottom: 18px; font-weight: 700; }
.footer__col a { display: block; font-size: 0.92rem; color: rgba(255,255,255,0.7); padding-block: 6px; transition: color 0.3s; }
.footer__col a:hover { color: var(--accent); }

/* recruitment CTA — discreet, institutional, sits between columns and copyright */
.footer-careers {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  margin-top: 32px; padding-bottom: 48px;
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 44px;
}
.footer-careers__kicker {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: rgba(255,255,255,0.5); margin: 0;
}
.footer-careers__btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  width: 100%; max-width: 460px; min-height: 54px; padding: 0 26px;
  border: 1px solid var(--accent); border-radius: 6px; background: transparent;
  color: var(--accent);
  font-family: var(--font-display); font-weight: 700; font-size: 0.8rem;
  letter-spacing: 0.13em; text-transform: uppercase;
  transition: background 0.3s ease-out, color 0.3s ease-out, transform 0.3s ease-out, box-shadow 0.3s ease-out;
}
.footer-careers__btn .ico-in { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }
.footer-careers__btn .ico-arrow { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; transition: transform 0.3s ease-out; }
.footer-careers__btn:hover {
  background: var(--accent); color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -12px var(--accent-glow);
}
.footer-careers__btn:hover .ico-arrow { transform: translate(2px, -2px); }

/* entrance: opacity/y/blur, ~0.8s, power3-like ease, fires once via the
   shared scroll-reveal observer (no external animation lib needed) */
.anim .footer-careers[data-reveal] {
  filter: blur(6px);
  transition:
    opacity 0.8s cubic-bezier(0.215, 0.61, 0.355, 1),
    transform 0.8s cubic-bezier(0.215, 0.61, 0.355, 1),
    filter 0.8s cubic-bezier(0.215, 0.61, 0.355, 1);
}
.anim .footer-careers[data-reveal].in { filter: blur(0); }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; padding-top: 26px; border-top: 1px solid rgba(255,255,255,0.1); max-width: var(--maxw); margin: 0 auto; }
.footer__bottom p { font-size: 0.78rem; color: rgba(255,255,255,0.4); }

/* ===== WhatsApp float ===== */
.wa { position: fixed; right: clamp(16px, 3vw, 30px); bottom: clamp(16px, 3vw, 30px); z-index: 80;
  width: 56px; height: 56px; border-radius: 50%; background: var(--accent);
  display: flex; align-items: center; justify-content: center; box-shadow: 0 12px 30px -10px var(--accent-glow);
  transition: transform 0.4s var(--ease), background 0.4s; }
.wa:hover { transform: translateY(-3px) scale(1.05); background: var(--accent-2); }
.wa svg { width: 26px; height: 26px; fill: #fff; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(2) { border-right: none; }
  .segs { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 40px 30px; }
}
@media (max-width: 860px) {
  .nav, .header__cta .btn { display: none; }
  .burger { display: flex; }
  .heroA .hero__inner, .heroC .hero__inner { grid-template-columns: 1fr; gap: 34px; }
  .heroA .hero__stats { max-width: 420px; }
  .about, .ops, .contact { grid-template-columns: 1fr; }
  .about__media { aspect-ratio: 16/10; }
  .approach, .platforms, .insights { grid-template-columns: 1fr; }
  .sec-head.split { grid-template-columns: 1fr; }
  .cases { grid-template-columns: repeat(2, 1fr); }
  .case--xl, .case--lg, .case--md, .case--wide { grid-column: span 2; min-height: 300px; }
}
@media (max-width: 560px) {
  .metrics, .tech-grid, .segs { grid-template-columns: 1fr; }
  .form { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .cases { grid-template-columns: 1fr; }
  .case--xl, .case--lg, .case--md, .case--wide { grid-column: span 1; }
  .badge { min-width: calc(50% - 7px); flex: 1; }
}