/* =========================================================
   LM Tax — Tax Intelligence Platform
   Sistema visual 1.0 · Manrope + Inter
   ========================================================= */

:root {
  /* Paleta principal */
  --azul-primario: #0F5BD7;
  --azul-profundo: #052B67;
  --azul-fundo:    #031C45;
  --azul-claro:    #DDEBFA;
  --azul-nevoa:    #EEF4FC;
  --cinza-prata:   #A6ADB8;
  --cinza-claro:   #E7EBF0;
  --grafite:       #27364A;
  --branco:        #FFFFFF;

  /* Luminosos (dark) */
  --azul-luz:      #63A0FF;
  --azul-glow:     rgba(99, 160, 255, .35);

  /* Semânticos */
  --text:          #1A2333;
  --text-soft:     #55617A;
  --text-on-dark:  #E9F0FB;
  --text-on-dark-soft: rgba(233, 240, 251, .72);
  --bg:            #FFFFFF;
  --border:        #E4E9F1;
  --border-dark:   rgba(255, 255, 255, .12);

  --radius:   18px;
  --radius-lg: 26px;
  --radius-sm: 12px;

  --shadow-sm: 0 1px 2px rgba(9, 30, 66, .06), 0 4px 12px rgba(9, 30, 66, .05);
  --shadow-md: 0 10px 30px rgba(9, 30, 66, .09), 0 2px 8px rgba(9, 30, 66, .05);
  --shadow-lg: 0 30px 70px rgba(5, 43, 103, .16);
  --shadow-blue: 0 14px 34px rgba(15, 91, 215, .28);

  --container: 1200px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --font-head: "Manrope", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

/* ---------- Reset / base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
:focus-visible { outline: 3px solid var(--azul-luz); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.narrow { max-width: 820px; }
.center { text-align: center; margin-inline: auto; }

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 800; line-height: 1.12; letter-spacing: -.02em; color: var(--grafite); }
.section-title { font-size: clamp(1.7rem, 3.6vw, 2.85rem); font-weight: 800; }
.section-title .muted { color: var(--cinza-prata); display: block; font-weight: 700; }
.on-dark, .on-dark * { color: var(--text-on-dark); }
.lead { font-size: clamp(1.02rem, 1.5vw, 1.22rem); color: var(--text-soft); }
.on-dark.lead { color: var(--text-on-dark-soft); }

.kicker, .eyebrow {
  font-family: var(--font-head);
  font-weight: 700; font-size: .8rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--azul-primario);
}
.kicker.light, .eyebrow { color: var(--azul-luz); }
.kicker { display: inline-block; margin-bottom: 14px; }

/* ---------- Botões ---------- */
.btn {
  --btn-bg: var(--azul-primario);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-head); font-weight: 700; font-size: .98rem;
  padding: 13px 26px; border-radius: 999px; border: 1.5px solid transparent;
  cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .2s, border-color .2s;
  will-change: transform; white-space: nowrap;
}
.btn-sm { padding: 9px 18px; font-size: .9rem; }
.btn-lg { padding: 16px 34px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--azul-primario); color: #fff; box-shadow: var(--shadow-blue); }
.btn-primary:hover { background: #0d51c0; box-shadow: 0 18px 40px rgba(15,91,215,.38); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--text-on-dark); border-color: rgba(255,255,255,.28); }
.btn-ghost:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.5); transform: translateY(-2px); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(3, 20, 45, .72);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background .3s var(--ease), box-shadow .3s var(--ease), padding .3s var(--ease);
}
.site-header.scrolled { background: rgba(3, 20, 45, .92); box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.header-inner { display: flex; align-items: center; gap: 24px; min-height: 74px; }
.brand-logo { height: 34px; width: auto; }
.footer-logo { height: 40px; width: auto; margin-bottom: 16px; }
.nav { display: flex; gap: 28px; margin-left: auto; }
.nav a { font-size: .95rem; font-weight: 500; color: var(--text-on-dark-soft); transition: color .2s; position: relative; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0; background: var(--azul-luz); transition: width .25s var(--ease); }
.nav a:hover { color: #fff; }
.nav a:hover::after { width: 100%; }
.nav-cta { margin-left: 4px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; margin-left: auto; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: .3s var(--ease); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none; flex-direction: column; gap: 4px; padding: 8px 24px 22px;
  background: rgba(3, 20, 45, .98);
}
.mobile-menu a { padding: 12px 4px; color: var(--text-on-dark-soft); border-bottom: 1px solid rgba(255,255,255,.06); font-weight: 500; }
.mobile-menu .btn { margin-top: 12px; }
.mobile-menu.open { display: flex; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 150px 0 70px; background: radial-gradient(120% 120% at 80% 0%, #063079 0%, var(--azul-fundo) 46%, #020f28 100%); color: #fff; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-curve { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(90% 70% at 60% 25%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(90% 70% at 60% 25%, #000 30%, transparent 80%);
}
.hero-glow { position: absolute; width: 620px; height: 620px; right: -120px; top: -180px; background: radial-gradient(circle, var(--azul-glow), transparent 62%); filter: blur(14px); }
.hero-glow.soft { opacity: .5; left: -160px; top: auto; bottom: -220px; right: auto; }
.hero-inner { position: relative; z-index: 2; max-width: 940px; }
.eyebrow { margin-bottom: 20px; }
.hero-title { font-size: clamp(2.3rem, 6vw, 4.3rem); color: #fff; font-weight: 800; letter-spacing: -.03em; }
.hero-title .line { display: block; overflow: hidden; }
.hero-title .grad { background: linear-gradient(100deg, #63A0FF 0%, #9cc5ff 55%, #ffffff 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { margin-top: 26px; font-size: clamp(1.05rem, 1.7vw, 1.3rem); color: var(--text-on-dark-soft); max-width: 720px; }
.hero-sub strong { color: #fff; font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 38px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 12px 26px; margin-top: 40px; }
.hero-chips li { display: flex; align-items: center; gap: 9px; font-size: .95rem; color: var(--text-on-dark-soft); }
.hero-chips .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--azul-luz); box-shadow: 0 0 0 4px rgba(99,160,255,.18); }

.hero-stats {
  position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-top: 64px; padding: 30px; border-radius: var(--radius-lg);
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.10);
  backdrop-filter: blur(6px);
}
.stat { text-align: center; padding: 6px 8px; }
.stat-num { display: block; font-family: var(--font-head); font-weight: 800; font-size: clamp(2rem, 4vw, 3rem); color: #fff; letter-spacing: -.02em; line-height: 1; }
.stat-label { display: block; margin-top: 10px; font-size: .84rem; color: var(--text-on-dark-soft); }

/* ---------- Seções ---------- */
.section { padding: clamp(64px, 9vw, 116px) 0; position: relative; }
.section-soft { background: var(--azul-nevoa); }
.section-dark { background: linear-gradient(180deg, var(--azul-fundo), #041d44); color: #fff; overflow: hidden; }
.section-head { max-width: 720px; margin: 0 auto clamp(40px, 5vw, 64px); text-align: center; }
.section-desc { margin-top: 18px; font-size: 1.08rem; color: var(--text-soft); }
.section-desc.on-dark { color: var(--text-on-dark-soft); }
.intro .lead { margin-top: 22px; }

/* ---------- Grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 34px 30px; box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.card:hover { box-shadow: var(--shadow-md); border-color: var(--azul-claro); }

/* Benefícios */
.benefit h3 { font-size: 1.24rem; margin: 20px 0 10px; }
.benefit p { color: var(--text-soft); font-size: .98rem; }
.icon-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 15px;
  background: linear-gradient(145deg, var(--azul-nevoa), #d8e7fb);
  color: var(--azul-primario); box-shadow: inset 0 0 0 1px rgba(15,91,215,.10);
}
.icon-badge svg { width: 26px; height: 26px; }

/* Pilares */
.pillars { display: flex; align-items: stretch; gap: 12px; flex-wrap: wrap; justify-content: center; }
.pillar {
  flex: 1 1 190px; min-width: 180px; max-width: 240px;
  background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius); padding: 26px 22px; transition: transform .35s var(--ease), background .35s, border-color .35s;
}
.pillar:hover { transform: translateY(-6px); background: rgba(99,160,255,.10); border-color: rgba(99,160,255,.4); }
.pillar-index { font-family: var(--font-head); font-weight: 800; font-size: .9rem; color: var(--azul-luz); letter-spacing: .1em; }
.pillar h3 { color: #fff; font-size: 1.16rem; margin: 12px 0 4px; }
.pillar-tag { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--azul-luz); margin-bottom: 12px; font-weight: 600; }
.pillar p { color: var(--text-on-dark-soft); font-size: .9rem; }
.pillar-arrow { display: flex; align-items: center; color: rgba(99,160,255,.6); font-size: 1.6rem; font-weight: 300; }

/* Digital Tax Twin */
.twin { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.twin.reverse { grid-template-columns: .95fr 1.05fr; }
.twin-copy .lead { margin-top: 20px; }
.check-list { margin-top: 26px; display: grid; gap: 14px; }
.check-list li { position: relative; padding-left: 34px; color: var(--text-soft); font-weight: 500; }
.on-dark .check-list li, .section-dark .check-list li { color: var(--text-on-dark-soft); }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--azul-primario) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5L20 7'/%3E%3C/svg%3E") center/13px no-repeat;
}
.twin-visual { display: flex; justify-content: center; }
.twin-flow { position: relative; display: flex; flex-direction: column; gap: 18px; width: 100%; max-width: 340px; padding: 8px 0; }
.flow-node {
  position: relative; z-index: 2; background: #fff; border: 1px solid var(--border);
  border-radius: 14px; padding: 16px 20px; box-shadow: var(--shadow-sm);
  font-family: var(--font-head); font-weight: 600; color: var(--grafite); font-size: .98rem;
  margin-left: calc(var(--i, 0) * 0); text-align: center;
}
.flow-node.accent { background: var(--azul-primario); color: #fff; border-color: transparent; box-shadow: var(--shadow-blue); }
.flow-line { position: absolute; left: 50%; top: 0; transform: translateX(-50%); height: 100%; width: 4px; z-index: 1; }

/* Agentes */
.agent { padding: 26px 26px; }
.agent-role { font-family: var(--font-head); font-weight: 800; font-size: 1.12rem; color: var(--azul-primario); display: block; margin-bottom: 8px; }
.agent p { color: var(--text-soft); font-size: .95rem; }
.agent { border-left: 3px solid var(--azul-claro); }
.agent:hover { border-left-color: var(--azul-primario); }

/* Soluções */
.solution h3 { font-size: 1.12rem; margin-bottom: 8px; }
.solution p { color: var(--text-soft); font-size: .95rem; }
.solution { position: relative; overflow: hidden; }
.solution::before { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0; background: linear-gradient(90deg, var(--azul-primario), var(--azul-luz)); transition: width .4s var(--ease); }
.solution:hover::before { width: 100%; }

/* Strip diferenciais */
.section-strip { background: var(--grafite); padding: 26px 0; overflow: hidden; }
.marquee { display: flex; align-items: center; gap: 26px; white-space: nowrap; font-family: var(--font-head); font-weight: 700; color: #fff; font-size: 1.05rem; animation: scrollx 28s linear infinite; }
.marquee span:nth-child(even) { color: var(--azul-luz); }
@keyframes scrollx { to { transform: translateX(-50%); } }

/* Segurança */
.security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sec-item { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); padding: 20px; transition: background .3s, border-color .3s; }
.sec-item:hover { background: rgba(99,160,255,.10); border-color: rgba(99,160,255,.35); }
.sec-item strong { display: block; color: #fff; font-family: var(--font-head); font-size: 1rem; margin-bottom: 6px; }
.sec-item span { color: var(--text-on-dark-soft); font-size: .88rem; }

/* Contato */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 68px); align-items: start; }
.contact-copy .lead { margin-top: 20px; }
.contact-points { margin-top: 26px; display: grid; gap: 12px; }
.contact-points li { position: relative; padding-left: 30px; color: var(--text-soft); font-weight: 500; }
.contact-points li::before { content: ""; position: absolute; left: 0; top: 8px; width: 8px; height: 8px; border-radius: 50%; background: var(--azul-primario); box-shadow: 0 0 0 4px rgba(15,91,215,.14); }
.contact-form { padding: 34px; display: grid; gap: 18px; box-shadow: var(--shadow-lg); border-color: var(--azul-claro); }
.field { display: grid; gap: 7px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field label { font-family: var(--font-head); font-weight: 600; font-size: .86rem; color: var(--grafite); }
.field .opt { color: var(--cinza-prata); font-weight: 500; }
.field input, .field textarea {
  font-family: var(--font-body); font-size: 1rem; color: var(--text);
  padding: 13px 15px; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  background: #fbfcfe; transition: border-color .2s, box-shadow .2s, background .2s; width: 100%;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--azul-primario); box-shadow: 0 0 0 4px rgba(15,91,215,.12); background: #fff; }
.field textarea { resize: vertical; min-height: 108px; }
.field input:invalid:not(:placeholder-shown) { border-color: #e0776a; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: .82rem; color: var(--text-soft); margin-top: 2px; }
.form-note.error { color: #c0392b; font-weight: 600; }
.form-note.success { color: #1e8e5a; font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer { background: var(--azul-fundo); color: var(--text-on-dark-soft); padding: 64px 0 30px; }
.footer-inner { display: grid; grid-template-columns: 1.3fr 2fr; gap: 48px; }
.footer-tag { font-family: var(--font-head); font-weight: 700; color: #fff; font-size: 1rem; }
.footer-desc { margin-top: 8px; font-size: .92rem; max-width: 320px; }
.footer-nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.footer-nav h4 { color: #fff; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 16px; font-weight: 700; }
.footer-nav a { display: block; padding: 6px 0; font-size: .92rem; color: var(--text-on-dark-soft); transition: color .2s, transform .2s; }
.footer-nav a:hover { color: #fff; transform: translateX(3px); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: .82rem; color: rgba(233,240,251,.5); }

/* ---------- Animação: reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(26px); }
.is-visible[data-reveal], [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- Responsivo ---------- */
@media (max-width: 980px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .twin, .twin.reverse, .contact { grid-template-columns: 1fr; }
  .twin-visual { order: -1; }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
  .pillar-arrow { transform: rotate(90deg); }
  .pillars { flex-direction: column; align-items: stretch; }
  .pillar { max-width: none; }
}
@media (max-width: 760px) {
  .nav, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px 12px; }
  .grid-3 { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .footer-nav { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 6px; }
  .hero { padding-top: 120px; }
}
@media (max-width: 420px) {
  .hero-stats { grid-template-columns: 1fr; }
  .footer-nav { grid-template-columns: 1fr; }
}

/* ---------- Acessibilidade: reduzir movimento ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .marquee { animation: none; }
}