/* ============================================================
   PRAXIS — styles.css
   ============================================================ */

/* ── Variables ─────────────────────────────────────────── */
:root {
  --black:          #000000;
  --surface:        #080808;
  --surface-2:      #101010;
  --surface-3:      #161616;
  --orange:         #F7A600;
  --orange-dim:     rgba(247, 166, 0, 0.10);
  --orange-glow:    rgba(247, 166, 0, 0.07);
  --white:          #ffffff;
  --white-80:       rgba(255, 255, 255, 0.80);
  --white-60:       rgba(255, 255, 255, 0.60);
  --white-40:       rgba(255, 255, 255, 0.40);
  --white-10:       rgba(255, 255, 255, 0.10);
  --white-05:       rgba(255, 255, 255, 0.05);
  --border:         rgba(255, 255, 255, 0.07);
  --border-hover:   rgba(247, 166, 0, 0.38);

  --font: 'Sukhumvit Set', 'Inter', system-ui, -apple-system, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --header-h:    76px;
  --py:          4rem;
  --max-w:       1200px;
  --px:          1.5rem;
  --radius:      12px;
  --radius-sm:   8px;
  --radius-full: 9999px;
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Container ─────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--px);
}

/* ============================================================
   TYPOGRAPHY UTILITIES
   ============================================================ */
.section__label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.75rem;
}
.section__title {
  font-size: clamp(1.75rem, 3.8vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--white);
  margin-bottom: 1.25rem;
}
.section__subtitle {
  font-size: 1.0625rem;
  color: var(--white-60);
  line-height: 1.72;
  max-width: 56ch;
}
.section__header { margin-bottom: 4rem; text-align: center; }
.section__header .section__subtitle { margin-inline: auto; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.375rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all 0.24s var(--ease-out);
  white-space: nowrap;
  cursor: pointer;
}
.btn--primary {
  background: var(--orange);
  color: var(--black);
}
.btn--primary:hover {
  background: #ffbb1f;
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(247, 166, 0, 0.32);
}
.btn--ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  background: var(--white-05);
  border-color: rgba(255,255,255,0.18);
  transform: translateY(-1px);
}
.btn--lg { padding: 0.875rem 2rem; font-size: 1rem; }
.btn--full { width: 100%; justify-content: center; }
.btn--icon { gap: 0.625rem; }

/* ============================================================
   HEADER LOGO
   ============================================================ */
.header__logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 1;
}
.logo-icon {
  height: 38px;
  width: auto;
  display: block;
}

/* ============================================================
   LOGO PNG (hero + footer)
   ============================================================ */
.logo-hero {
  height: 120px;
  width: auto;
  display: block;
}
.logo-footer {
  height: 80px;
  width: auto;
  display: block;
}

/* text utility */
.text--orange { color: var(--orange); }

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--header-h);
  border-bottom: none;
  transition: background 0.35s ease, backdrop-filter 0.35s ease;
}
.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
  z-index: 1;
}
.header.scrolled {
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 1.5rem;
}
.header__nav {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  margin-left: auto;
}
.nav__link {
  position: relative;
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--white-60);
  transition: color 0.22s;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 0.875rem; right: 0.875rem;
  height: 1px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease-out);
}
.nav__link:hover,
.nav__link.active { color: var(--white); }
.nav__link:hover::after,
.nav__link.active::after { transform: scaleX(1); }

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: 1.25rem;
}

/* ── Hamburger ─────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile menu ───────────────────────────────────────── */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(0,0,0,0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  text-align: center;
  padding: 2rem;
}
.mobile-menu__link {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--white-60);
  padding: 0.5rem 1rem;
  transition: color 0.2s;
}
.mobile-menu__link:hover { color: var(--orange); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--header-h);
  background: var(--black);
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -5%;
  left: 50%;
  transform: translateX(-50%);
  width: 75vw;
  max-width: 900px;
  height: 55vh;
  background: radial-gradient(ellipse at center bottom, rgba(247,166,0,0.16) 0%, rgba(247,166,0,0.04) 45%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}
.hero__logo-display {
  margin-bottom: 0.5rem;
}
.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding-top: 2rem;
  padding-bottom: 5rem;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.125rem;
  border: 1px solid rgba(247,166,0,0.28);
  border-radius: var(--radius-full);
  background: rgba(247,166,0,0.06);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--orange);
  letter-spacing: 0.01em;
}
.hero__headline {
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--white);
  max-width: 22ch;
}
.hero__subheadline {
  font-size: clamp(1rem, 2vw, 1.1875rem);
  color: var(--white-60);
  line-height: 1.7;
  max-width: 52ch;
}
.hero__actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}
.hero__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--white-60);
  letter-spacing: 0.01em;
  transition: color 0.22s, letter-spacing 0.22s;
}
.hero__link:hover {
  color: var(--white);
  letter-spacing: 0.04em;
}
.hero__scroll {
  position: absolute;
  bottom: 2.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero__scroll-dot {
  width: 24px; height: 40px;
  border: 1.5px solid rgba(255,255,255,0.30);
  border-radius: 12px;
  position: relative;
}
.hero__scroll-dot::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: rgba(255,255,255,0.55);
  border-radius: 2px;
  animation: scrollBob 2s ease-in-out infinite;
}
@keyframes scrollBob {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  60%       { opacity: 0; transform: translateX(-50%) translateY(12px); }
}
.br-desktop { display: none; }

/* ============================================================
   SECTION BASE
   ============================================================ */
.section { padding-block: var(--py); }

/* ============================================================
   PROBLEM SECTION
   ============================================================ */
.section--problem { background: var(--surface); }

.problem__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  gap: 1px;
}
.problem__item {
  background: var(--surface);
  padding: 2.5rem 1.75rem;
  transition: background 0.25s;
}
.problem__item:hover { background: var(--surface-2); }

.problem__num {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.problem__name {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.625rem;
  line-height: 1.3;
}
.problem__desc {
  font-size: 0.875rem;
  color: var(--white-40);
  line-height: 1.65;
}

/* ============================================================
   CARDS — SOLUTIONS
   ============================================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.125rem;
}
.cards-grid--4 {
  grid-template-columns: repeat(2, 1fr);
}
.card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.25rem 2rem;
  transition: transform 0.32s var(--ease-out), border-color 0.28s, box-shadow 0.32s;
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 14px 44px rgba(247,166,0,0.07);
}
.card__icon-wrap {
  width: 48px; height: 48px;
  background: var(--orange-dim);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.card__icon {
  width: 22px; height: 22px;
  color: var(--orange);
}
.card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}
.card__text {
  font-size: 0.875rem;
  color: var(--white-60);
  line-height: 1.72;
}

/* ============================================================
   FLUIG CARDS LAYOUT (parceiro + 4 cards)
   ============================================================ */
.fluig-cards-layout {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 1.125rem;
}
.card--partner {
  grid-row: 1 / 3;
  background: linear-gradient(145deg, rgba(247,166,0,0.12) 0%, rgba(247,166,0,0.04) 100%);
  border-color: rgba(247,166,0,0.45);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.card--partner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
}
.card--partner:hover {
  border-color: rgba(247,166,0,0.70);
  box-shadow: 0 14px 44px rgba(247,166,0,0.12);
}
.card__icon-wrap--partner {
  background: rgba(247,166,0,0.15);
}
.card__title--partner {
  color: var(--orange);
}

@media (max-width: 1023px) {
  .fluig-cards-layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
  }
  .card--partner { grid-row: auto; }
}
@media (max-width: 768px) {
  .fluig-cards-layout { grid-template-columns: 1fr; }
}

/* ============================================================
   PARTNER BANNER (kept for CSS but no longer used in HTML)
   ============================================================ */
.partner-banner {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  background: linear-gradient(135deg, rgba(247,166,0,0.07) 0%, rgba(247,166,0,0.03) 100%);
  border: 1px solid rgba(247,166,0,0.30);
  border-radius: var(--radius);
  padding: 2rem 2.5rem;
  position: relative;
  overflow: hidden;
}
.partner-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
}
.partner-banner__item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}
.partner-banner__icon {
  width: 28px;
  height: 28px;
  color: var(--orange);
  flex-shrink: 0;
  margin-top: 2px;
}
.partner-banner__label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.partner-banner__text {
  font-size: 0.9375rem;
  color: var(--white-60);
  line-height: 1.65;
}
.partner-banner__divider {
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, transparent, rgba(247,166,0,0.30), transparent);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .partner-banner {
    grid-template-columns: 1fr;
    padding: 1.75rem 1.5rem;
  }
  .partner-banner__divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(247,166,0,0.30), transparent);
  }
}

/* ============================================================
   FLUIG SECTION
   ============================================================ */
.section--fluig { background: var(--surface); }

.fluig__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.fluig__list {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}
.fluig__item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  font-size: 1rem;
  color: var(--white-60);
  transition: color 0.2s;
}
.fluig__item:hover { color: var(--white); }
.fluig__arrow {
  color: var(--orange);
  font-size: 1.125rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform 0.24s var(--ease-out);
}
.fluig__item:hover .fluig__arrow { transform: translateX(5px); }

/* Flow diagram */
.fluig__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.flow-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 280px;
}
.flow-node {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.125rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--white-60);
  transition: border-color 0.25s, color 0.25s;
}
.flow-node:hover {
  border-color: var(--border-hover);
  color: var(--white);
}
.flow-node--start,
.flow-node--end {
  border-color: rgba(247,166,0,0.22);
  color: var(--white-80);
}
.flow-node--end { background: rgba(247,166,0,0.05); }
.flow-node__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--orange);
  flex-shrink: 0;
  box-shadow: 0 0 10px rgba(247,166,0,0.5);
}
.flow-connector {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, rgba(247,166,0,0.28), rgba(247,166,0,0.06));
}

/* ============================================================
   IMPACT QUOTE
   ============================================================ */
.section--impact {
  position: relative;
  padding-block: calc(var(--py) * 1.3);
  overflow: hidden;
}
.impact__glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 65vw; height: 65vh;
  background: radial-gradient(ellipse, rgba(247,166,0,0.065) 0%, transparent 68%);
  pointer-events: none;
}
.impact__quote {
  font-size: clamp(1.875rem, 4.5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.025em;
  color: var(--white);
  text-align: center;
  max-width: 22ch;
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

/* ============================================================
   AI SECTION
   ============================================================ */
.section--ai { background: var(--surface); }

.ai__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.ai__card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: border-color 0.3s, transform 0.32s var(--ease-out);
}
.ai__card:hover {
  border-color: rgba(247,166,0,0.22);
  transform: translateY(-4px);
}
.ai__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--orange);
  margin-bottom: 1.5rem;
  animation: dotPulse 3s ease-in-out infinite;
}
.ai__card:nth-child(2) .ai__dot { animation-delay: 1s; }
.ai__card:nth-child(3) .ai__dot { animation-delay: 2s; }
@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 6px rgba(247,166,0,0.40); }
  50%       { box-shadow: 0 0 18px rgba(247,166,0,0.80); }
}
.ai__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.75rem;
}
.ai__text {
  font-size: 0.875rem;
  color: var(--white-60);
  line-height: 1.72;
}

/* ============================================================
   DIFFERENTIATOR
   ============================================================ */
.section--differentiator { padding-block: calc(var(--py) * 0.8); }

.differentiator__box {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.differentiator__box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(247,166,0,0.45), transparent);
}
.differentiator__title {
  font-size: clamp(1.625rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 1.25rem;
}
.differentiator__text {
  font-size: 1.0625rem;
  color: var(--white-60);
  line-height: 1.72;
  max-width: 58ch;
  margin-inline: auto;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 3rem;
}
.about__body {
  font-size: 1rem;
  color: var(--white-60);
  line-height: 1.72;
  margin-top: 1rem;
}
.about__body strong { color: var(--white-80); font-weight: 600; }

/* Award photo */
.about__award { position: relative; }
.award__img-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(247,166,0,0.20);
}
.award__img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  object-position: center;
  display: block;
  filter: brightness(0.88);
  transition: filter 0.3s;
}
.award__img-wrap:hover .award__img { filter: brightness(1); }
.award__caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 0.875rem 1.25rem;
  background: linear-gradient(to top, rgba(0,0,0,0.80) 0%, transparent 100%);
  font-size: 0.8125rem;
  color: var(--orange);
  font-weight: 600;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Stats row */
.about__stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.stat {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1rem;
  text-align: center;
  transition: border-color 0.25s, transform 0.28s var(--ease-out);
}
.stat:hover {
  border-color: rgba(247,166,0,0.25);
  transform: translateY(-3px);
}
.stat__value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--orange);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat__label {
  display: block;
  font-size: 0.7rem;
  color: var(--white-40);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.section--cta {
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta__glow {
  position: absolute;
  bottom: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 70vw; height: 70vh;
  background: radial-gradient(ellipse at center, rgba(247,166,0,0.12) 0%, transparent 65%);
  pointer-events: none;
}
.cta__content { position: relative; z-index: 1; }
.cta__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 1.25rem;
}
.cta__text {
  font-size: 1.0625rem;
  color: var(--white-60);
  line-height: 1.72;
  max-width: 50ch;
  margin: 0 auto 2.5rem;
}
.cta__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.contact-wa { align-self: flex-start; }

/* Form */
.contact-form-wrap {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}
.contact-form-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
}
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; text-align: left; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--white-60);
  letter-spacing: 0.03em;
}
.form-label span { color: var(--orange); }
.form-input {
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font);
  font-size: 0.9375rem;
  padding: 0.75rem 1rem;
  transition: border-color 0.22s, box-shadow 0.22s;
  outline: none;
  width: 100%;
}
.form-input::placeholder { color: var(--white-40); }
.form-input:focus {
  border-color: rgba(247,166,0,0.50);
  box-shadow: 0 0 0 3px rgba(247,166,0,0.08);
}
.form-input.input--error { border-color: #e05252; }
.form-textarea { resize: vertical; min-height: 130px; }
.form-error {
  font-size: 0.75rem;
  color: #e07070;
  min-height: 1em;
  display: block;
}
.form-submit { margin-top: 0.25rem; justify-content: center; position: relative; padding: 0.65rem 1.75rem; font-size: 0.9rem; }
.form-submit__loading { display: none; }
.form-submit.loading .form-submit__text   { display: none; }
.form-submit.loading .form-submit__loading { display: inline; }
.form-submit.loading { opacity: 0.7; pointer-events: none; }
.form-feedback {
  font-size: 0.9rem;
  text-align: center;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  display: none;
}
.form-feedback.success {
  display: block;
  background: rgba(60,200,100,0.10);
  border: 1px solid rgba(60,200,100,0.25);
  color: #6ee09a;
}
.form-feedback.error {
  display: block;
  background: rgba(220,60,60,0.10);
  border: 1px solid rgba(220,60,60,0.25);
  color: #e07070;
}

@media (max-width: 1023px) {
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
}
@media (max-width: 520px) {
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 1.75rem 1.25rem; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding-top: 3.75rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}
.footer__logo { margin-bottom: 1.25rem; display: block; }
.footer__tagline {
  font-size: 0.875rem;
  color: var(--white-40);
  line-height: 1.65;
  max-width: 30ch;
}
.footer__nav-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-40);
  margin-bottom: 1.25rem;
}
.footer__link {
  display: block;
  font-size: 0.875rem;
  color: var(--white-60);
  margin-bottom: 0.625rem;
  transition: color 0.2s;
}
.footer__link:hover { color: var(--orange); }
.footer__bottom {
  padding-block: 1.5rem;
  font-size: 0.75rem;
  color: var(--white-40);
  text-align: center;
}

/* ============================================================
   ANIMATIONS — FADE UP (hero, immediate on load)
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}
.fade-delay-1 { transition-delay: 0.15s; }
.fade-delay-2 { transition-delay: 0.30s; }
.fade-delay-3 { transition-delay: 0.48s; }
.fade-delay-4 { transition-delay: 0.68s; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ── Nav transition overlay ────────────────────────────── */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  z-index: 8888;
  pointer-events: none;
}
.nav-overlay.flash {
  animation: nav-flash 0.55s ease forwards;
}
@keyframes nav-flash {
  0%   { background: rgba(0, 0, 0, 0); }
  35%  { background: rgba(0, 0, 0, 0.55); }
  100% { background: rgba(0, 0, 0, 0); }
}

/* ── Scroll reveal ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px) scale(0.985);
  transition: opacity 0.72s var(--ease-out), transform 0.72s var(--ease-out);
}
.reveal--left  { transform: translateX(-36px) scale(0.985); }
.reveal--right { transform: translateX(36px)  scale(0.985); }
.reveal--d1 { transition-delay: 0.07s; }
.reveal--d2 { transition-delay: 0.16s; }
.reveal--d3 { transition-delay: 0.25s; }
.reveal--d4 { transition-delay: 0.34s; }
.reveal.visible { opacity: 1; transform: translate(0) scale(1); }

/* ── Section enter pulse ───────────────────────────────── */
section.section-enter::after {
  animation: section-pulse 0.7s var(--ease-out) forwards;
}
@keyframes section-pulse {
  0%   { opacity: 0.10; }
  100% { opacity: 0; }
}

/* ── Reduced motion ────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-up, .reveal { opacity: 1 !important; transform: none !important; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (min-width: 1024px) {
  .br-desktop { display: inline; }
}

@media (max-width: 1023px) {
  :root { --py: 4.5rem; }

  .fluig__grid,
  .about__grid { grid-template-columns: 1fr; gap: 3rem; }
  .about__stats-row { grid-template-columns: repeat(2, 1fr); }

  .fluig__visual { display: none; }

  .cards-grid { grid-template-columns: 1fr 1fr; }
  .ai__grid   { grid-template-columns: 1fr 1fr; }

  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  :root { --py: 4rem; --px: 1.25rem; }

  .logo-hero   { height: 80px; }
  .logo-footer { height: 60px; }

  .header__nav,
  .header__actions { display: none; }
  .hamburger { display: flex; }

  .problem__grid { grid-template-columns: 1fr 1fr; }
  .cards-grid,
  .cards-grid--4 { grid-template-columns: 1fr; }
  .ai__grid      { grid-template-columns: 1fr; }

  .about__stats  { grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }

  .differentiator__box { padding: 2.5rem 1.5rem; }
  .footer__grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  :root { --py: 3.5rem; --px: 1rem; }

  .problem__grid { grid-template-columns: 1fr; }
  .about__stats  { grid-template-columns: 1fr; }

  .hero__actions,
  .cta__actions  { flex-direction: column; align-items: center; }
  .hero__actions .btn,
  .cta__actions  .btn { width: 100%; max-width: 320px; justify-content: center; }

  .differentiator__box { padding: 2rem 1.25rem; }
}

.toast {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 320px;
  max-width: 420px;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(16, 18, 24, 0.96);
  color: #fff;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transform: translateY(-18px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast__icon {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f28c28;
  color: #111;
  font-weight: 800;
  font-size: 20px;
  flex-shrink: 0;
}

.toast__content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toast__content strong {
  font-size: 0.98rem;
  line-height: 1.2;
}

.toast__content span {
  font-size: 0.9rem;
  opacity: 0.85;
}

@media (max-width: 640px) {
  .toast {
    top: 16px;
    left: 16px;
    right: 16px;
    min-width: auto;
    max-width: none;
  }
}