/* ============================================================
   PRAXO — style.css
   Paleta: Navy escuro (#0D1B2A), branco (#FFFFFF),
           acento laranja (#F47B20), cinza claro (#F4F6F9)
============================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-navy:       #0D1B2A;
  --color-navy-mid:   #1B3354;
  --color-navy-light: #1e3d5c;
  --color-accent:     #F47B20;
  --color-accent-hover: #d96a10;
  --color-white:      #FFFFFF;
  --color-off-white:  #F4F6F9;
  --color-text:       #1a2332;
  --color-text-muted: #5a6a7e;
  --color-border:     #dce3ed;
  --color-success:    #22c55e;

  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --shadow-sm:  0 1px 3px rgba(13, 27, 42, .08);
  --shadow-md:  0 4px 16px rgba(13, 27, 42, .12);
  --shadow-lg:  0 8px 32px rgba(13, 27, 42, .16);

  --transition: 0.25s ease;
  --max-width:  1160px;
  --section-py: 96px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---------- Sections ---------- */
.section {
  padding-block: var(--section-py);
}

.section--light {
  background: var(--color-off-white);
}

.section--dark {
  background: var(--color-navy);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-label--light {
  color: var(--color-accent);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-navy);
  margin-bottom: 20px;
}

.section-title--light {
  color: var(--color-white);
}

.section-title em {
  font-style: normal;
  color: var(--color-accent);
}

.section-intro {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: 56px;
}

.section-intro--light {
  color: rgba(255,255,255,.7);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-base);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(244, 123, 32, .35);
}

.btn--ghost {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn--ghost:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn--large {
  padding: 16px 36px;
  font-size: 1rem;
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- HEADER ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

/* Logo */
.logo {
  display: flex;
  align-items: baseline;
  gap: 1px;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-navy);
}

.logo-dot {
  color: var(--color-accent);
  font-size: 1.8rem;
  line-height: 1;
}

.logo--footer .logo-text,
.logo--footer .logo-dot {
  color: var(--color-white);
}

.logo--footer .logo-dot {
  color: var(--color-accent);
}

/* Desktop nav */
.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-link:hover {
  color: var(--color-navy);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link--cta {
  background: var(--color-accent);
  color: var(--color-white) !important;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}

.nav-link--cta::after { display: none; }

.nav-link--cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.active .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--color-border);
  background: var(--color-white);
}

.mobile-menu.open {
  display: block;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  display: block;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.mobile-nav-link:hover {
  background: var(--color-off-white);
  color: var(--color-navy);
}

.mobile-nav-link--cta {
  margin-top: 8px;
  background: var(--color-accent);
  color: var(--color-white) !important;
  text-align: center;
  font-weight: 600;
}

.mobile-nav-link--cta:hover {
  background: var(--color-accent-hover);
}

/* ---------- HERO ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-mid) 60%, #142840 100%);
  padding-block: 100px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 70% 50%, rgba(244,123,32,.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
}

.hero-badge {
  display: inline-block;
  background: rgba(244,123,32,.15);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(244,123,32,.3);
  margin-bottom: 20px;
}

.hero-headline {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-white);
  margin-bottom: 20px;
}

.headline-accent {
  color: var(--color-accent);
}

.hero-subheadline {
  font-size: 1.0625rem;
  color: rgba(255,255,255,.72);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-cta-group .btn--ghost {
  color: var(--color-white);
  border-color: rgba(255,255,255,.4);
}

.hero-cta-group .btn--ghost:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.7);
}

/* Hero visual cards */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  backdrop-filter: blur(4px);
  transition: background var(--transition), transform var(--transition);
}

.hero-card:hover {
  background: rgba(255,255,255,.11);
  transform: translateX(4px);
}

.hero-card--offset {
  margin-left: 24px;
}

.hero-card__icon {
  font-size: 1.75rem;
  flex-shrink: 0;
}

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

.hero-card__text strong {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-white);
}

.hero-card__text span {
  font-size: 0.8125rem;
  color: rgba(255,255,255,.6);
}

/* Scroll hint */
.hero-scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 56px;
  color: rgba(255,255,255,.4);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scroll-arrow {
  width: 18px;
  height: 18px;
  border-right: 2px solid rgba(255,255,255,.4);
  border-bottom: 2px solid rgba(255,255,255,.4);
  transform: rotate(45deg);
  animation: bounce 1.8s ease infinite;
}

@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50%       { transform: rotate(45deg) translateY(5px); }
}

/* ---------- PROBLEMA ---------- */
.problema-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.problema-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.problema-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.problema-card__icon {
  font-size: 2.25rem;
  margin-bottom: 16px;
}

.problema-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.problema-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.problema-destaque {
  background: var(--color-navy);
  border-radius: var(--radius-md);
  padding: 28px 32px;
}

.problema-destaque p {
  color: rgba(255,255,255,.85);
  font-size: 1rem;
  line-height: 1.7;
}

.problema-destaque strong {
  color: var(--color-accent);
}

/* ---------- COMO AJUDA ---------- */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0;
  align-items: start;
  margin-bottom: 48px;
}

.step {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: background var(--transition);
}

.step:hover {
  background: rgba(255,255,255,.09);
}

.step__number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.8;
  margin-bottom: 12px;
  line-height: 1;
}

.step__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
}

.step__desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,.65);
  line-height: 1.65;
}

.step-connector {
  width: 48px;
  height: 2px;
  background: rgba(244,123,32,.4);
  align-self: center;
  margin-top: -20px;
  position: relative;
}

.step-connector::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid rgba(244,123,32,.4);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.diferencial-box {
  background: rgba(244,123,32,.12);
  border: 1px solid rgba(244,123,32,.3);
  border-radius: var(--radius-md);
  padding: 24px 28px;
}

.diferencial-text {
  color: rgba(255,255,255,.85);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.diferencial-text strong {
  color: var(--color-accent);
}

/* ---------- SERVIÇOS ---------- */
.servicos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.servico-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.servico-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--color-accent);
  border-radius: 0 0 2px 2px;
  transition: height 0.35s ease;
}

.servico-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(244,123,32,.25);
}

.servico-card:hover::before {
  height: 100%;
}

.servico-card__icon {
  width: 56px;
  height: 56px;
  background: rgba(244,123,32,.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 20px;
  transition: background var(--transition);
}

.servico-card:hover .servico-card__icon {
  background: rgba(244,123,32,.18);
}

.servico-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 12px;
  line-height: 1.3;
}

.servico-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.servico-card__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.servico-card__list li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding-left: 18px;
  position: relative;
}

.servico-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ---------- SOBRE ---------- */
.sobre-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 64px;
  align-items: start;
}

.sobre-avatar-wrap {
  flex-shrink: 0;
}

.sobre-avatar-placeholder {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-mid) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.4);
  border: 4px solid var(--color-border);
}

.sobre-avatar-img {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-xl);
  object-fit: cover;
  border: 4px solid var(--color-border);
}

.sobre-text {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.sobre-text strong {
  color: var(--color-navy);
}

.sobre-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tag {
  background: var(--color-navy);
  color: rgba(255,255,255,.85);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
}

/* ---------- FORMULÁRIO ---------- */
.form-wrapper {
  max-width: 720px;
  margin-inline: auto;
}

.contact-form {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,.85);
}

.required {
  color: var(--color-accent);
}

.form-input {
  background: rgba(255,255,255,.07);
  border: 1.5px solid rgba(255,255,255,.15);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: var(--font-base);
  font-size: 0.9375rem;
  color: var(--color-white);
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-input::placeholder {
  color: rgba(255,255,255,.35);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255,255,255,.1);
  box-shadow: 0 0 0 3px rgba(244,123,32,.2);
}

.form-input.error {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248,113,113,.2);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.form-error {
  font-size: 0.8125rem;
  color: #fca5a5;
  min-height: 18px;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.form-disclaimer {
  font-size: 0.8125rem;
  color: rgba(255,255,255,.4);
}

/* Form success state */
.form-success {
  display: none;
  text-align: center;
  padding: 56px 48px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
}

.form-success[aria-hidden="false"] {
  display: block;
}

.form-success__icon {
  width: 64px;
  height: 64px;
  background: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: white;
  margin: 0 auto 20px;
}

.form-success h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.form-success p {
  color: rgba(255,255,255,.7);
  font-size: 1rem;
}

/* ---------- FOOTER ---------- */
.site-footer {
  background: #070f18;
  padding-top: 56px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}

.footer-tagline {
  margin-top: 8px;
  font-size: 0.9rem;
  color: rgba(255,255,255,.45);
  max-width: 280px;
}

.footer-nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: flex-end;
  align-items: flex-start;
  padding-top: 8px;
}

.footer-link {
  font-size: 0.875rem;
  color: rgba(255,255,255,.5);
  transition: color var(--transition);
}

.footer-link:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-block: 20px;
}

.footer-copy {
  font-size: 0.8125rem;
  color: rgba(255,255,255,.3);
  text-align: center;
}

.footer-domain {
  color: var(--color-accent);
  transition: opacity var(--transition);
}

.footer-domain:hover {
  opacity: 0.8;
}

/* ============================================================
   RESPONSIVE
============================================================ */

/* Tablet: ≤900px */
@media (max-width: 900px) {
  :root { --section-py: 72px; }

  .nav { display: none; }
  .nav-toggle { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-subheadline { margin-inline: auto; }
  .hero-cta-group { justify-content: center; }

  .hero-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .hero-card--offset { margin-left: 0; }

  .problema-grid { grid-template-columns: 1fr; }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .step-connector { display: none; }

  .servicos-grid { grid-template-columns: 1fr; }

  .sobre-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .sobre-avatar-wrap {
    display: flex;
    justify-content: center;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-nav-list { justify-content: flex-start; }
}

/* Mobile: ≤600px */
@media (max-width: 600px) {
  :root { --section-py: 56px; }

  .hero { padding-block: 72px 56px; }

  .hero-visual {
    grid-template-columns: 1fr;
  }

  .form-row { grid-template-columns: 1fr; }

  .contact-form { padding: 28px 20px; }

  .form-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn--large { width: 100%; }

  .hero-cta-group { flex-direction: column; }
  .hero-cta-group .btn { width: 100%; justify-content: center; }
}