@charset "UTF-8";
/* =============================================================================
   GTechTI — Folha de estilos principal
   -----------------------------------------------------------------------------
   Índice
     01. Tokens de design
     02. Reset e base
     03. Utilitários e layout
     04. Botões
     05. Cabeçalho e navegação
     06. Fundos decorativos das seções
     07. Hero
     08. Apresentação
     09. Serviços
     10. Diferenciais
     11. Processo (timeline)
     12. Projetos
     13. Tecnologias
     14. Sobre
     15. Call to action
     16. Contato e formulário
     17. Rodapé
     18. Elementos flutuantes
     19. Página interna (contato)
     20. Animações de entrada
     21. Responsividade
   ========================================================================== */

/* =============================================================================
   01. Tokens de design
   ========================================================================== */
:root {
    /* Cores institucionais */
    --navy-900: #070C16;
    --navy-800: #0B1220;
    --navy-700: #111C31;
    --navy-600: #17243D;
    --blue-600: #2563EB;
    --blue-500: #3B82F6;
    --blue-700: #1D4ED8;
    --sky-400: #38BDF8;
    --green-500: #22C55E;

    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-500: #64748B;
    --gray-700: #334155;
    --gray-900: #0F172A;

    /* Papéis semânticos — tema claro (padrão das seções) */
    --bg: var(--white);
    --text: var(--gray-900);
    --text-muted: var(--gray-500);
    --border: var(--gray-200);
    --surface: var(--white);

    /* Tipografia */
    --font-sans: "Inter", "Segoe UI Variable Text", "Segoe UI", system-ui,
        -apple-system, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --font-mono: ui-monospace, "Cascadia Mono", "Consolas", "SFMono-Regular",
        "Liberation Mono", monospace;

    --fs-h1: clamp(2.15rem, 1.35rem + 3.4vw, 3.85rem);
    --fs-h2: clamp(1.7rem, 1.2rem + 1.9vw, 2.6rem);
    --fs-h3: clamp(1.06rem, 1rem + 0.25vw, 1.2rem);
    --fs-lead: clamp(1rem, 0.96rem + 0.3vw, 1.16rem);
    --fs-body: 1rem;
    --fs-sm: 0.9rem;
    --fs-xs: 0.8rem;

    /* Espaçamento e formas */
    --container: 1200px;
    --gutter: clamp(1.15rem, 0.8rem + 1.6vw, 2rem);
    --section-y: clamp(3.75rem, 2.5rem + 4vw, 6.5rem);
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --header-h: 74px;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .05);
    --shadow: 0 4px 6px -2px rgba(15, 23, 42, .05), 0 12px 24px -6px rgba(15, 23, 42, .1);
    --shadow-lg: 0 18px 40px -12px rgba(15, 23, 42, .18), 0 8px 16px -8px rgba(15, 23, 42, .1);
    --shadow-glow: 0 12px 30px -8px rgba(37, 99, 235, .45);

    /* Gradientes */
    --grad-brand: linear-gradient(135deg, var(--blue-600) 0%, var(--sky-400) 100%);
    --grad-text: linear-gradient(100deg, var(--sky-400) 0%, #7DD3FC 45%, var(--blue-500) 100%);

    --transition: 220ms cubic-bezier(.4, 0, .2, 1);
}

/* Contexto escuro: as seções escuras redefinem os papéis semânticos,
   de modo que os componentes internos se adaptam automaticamente. */
.section--dark {
    --bg: var(--navy-800);
    --text: var(--white);
    --text-muted: #94A3B8;
    --border: rgba(148, 163, 184, .16);
    --surface: rgba(255, 255, 255, .04);
}

.section--muted {
    --bg: var(--gray-100);
    --surface: var(--white);
}

/* =============================================================================
   02. Reset e base
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scrollbar-gutter: stable;
}

body {
    font-family: var(--font-sans);
    font-size: var(--fs-body);
    line-height: 1.65;
    color: var(--text);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body.nav-open {
    overflow: hidden;
}

h1, h2, h3, h4 {
    line-height: 1.18;
    letter-spacing: -0.02em;
    font-weight: 700;
    text-wrap: balance;
    color: var(--text);
}

p {
    text-wrap: pretty;
}

a {
    color: var(--blue-600);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--blue-700);
}

img,
svg,
picture {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

ul, ol {
    list-style: none;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

button {
    background: none;
    border: 0;
    cursor: pointer;
}

/* Foco visível e consistente em todo o site (acessibilidade). */
:focus-visible {
    outline: 3px solid var(--sky-400);
    outline-offset: 2px;
    border-radius: 4px;
}

.section--dark :focus-visible {
    outline-color: var(--sky-400);
}

/* Sprite de ícones — presente no DOM, mas invisível. */
.svg-sprite {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

.icon {
    width: 24px;
    height: 24px;
    flex: 0 0 auto;
}

.icon-sm {
    width: 18px;
    height: 18px;
}

/* Link de salto para o conteúdo (visível apenas com foco de teclado). */
.skip-link {
    position: fixed;
    top: 0;
    left: 50%;
    z-index: 200;
    transform: translate(-50%, -120%);
    padding: .7rem 1.25rem;
    background: var(--blue-600);
    color: var(--white);
    font-size: var(--fs-sm);
    font-weight: 600;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    transition: transform var(--transition);
}

.skip-link:focus {
    transform: translate(-50%, 0);
    color: var(--white);
}

/* =============================================================================
   03. Utilitários e layout
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.section {
    position: relative;
    padding-block: var(--section-y);
    background-color: var(--bg);
    color: var(--text);
    overflow: hidden;
    scroll-margin-top: var(--header-h);
}

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

.section__header {
    max-width: 720px;
    margin: 0 auto clamp(2.5rem, 2rem + 2vw, 3.75rem);
    text-align: center;
}

.section__title {
    font-size: var(--fs-h2);
    margin-top: .6rem;
}

.section__subtitle {
    margin-top: 1rem;
    font-size: var(--fs-lead);
    color: var(--text-muted);
}

.section__footnote {
    margin-top: clamp(2rem, 1.5rem + 1.5vw, 3rem);
    text-align: center;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

.eyebrow {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--blue-600);
}

.section--dark .eyebrow {
    color: var(--sky-400);
}

.text-gradient {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    /* Evita o corte de letras descendentes (g, y, p) no clipping do texto. */
    padding-bottom: .06em;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .45rem .95rem .45rem .8rem;
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: .01em;
    color: #BFDBFE;
    background: rgba(37, 99, 235, .12);
    border: 1px solid rgba(56, 189, 248, .28);
    border-radius: 999px;
}

.badge__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green-500);
    box-shadow: 0 0 0 4px rgba(34, 197, 94, .18);
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    margin-top: 1.75rem;
    font-weight: 600;
    color: var(--blue-600);
}

.link-arrow .icon {
    transition: transform var(--transition);
}

.link-arrow:hover .icon {
    transform: translateX(4px);
}

.grid {
    display: grid;
    gap: clamp(1rem, .7rem + 1vw, 1.5rem);
}

/* =============================================================================
   04. Botões
   ========================================================================== */
.btn {
    --btn-py: .8rem;
    --btn-px: 1.4rem;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    padding: var(--btn-py) var(--btn-px);
    font-size: var(--fs-sm);
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    white-space: nowrap;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition),
        background-color var(--transition), border-color var(--transition),
        color var(--transition);
}

.btn:active {
    transform: translateY(1px);
}

.btn--sm {
    --btn-py: .6rem;
    --btn-px: 1.05rem;
    font-size: var(--fs-xs);
}

.btn--lg {
    --btn-py: .95rem;
    --btn-px: 1.75rem;
    font-size: var(--fs-body);
}

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

/* Primário — gradiente da marca */
.btn--primary {
    color: var(--white);
    background-image: var(--grad-brand);
    background-size: 140% 140%;
    background-position: 0% 50%;
    box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
    color: var(--white);
    background-position: 100% 50%;
    box-shadow: 0 16px 34px -8px rgba(37, 99, 235, .55);
    transform: translateY(-2px);
}

/* Fantasma — para fundos escuros */
.btn--ghost {
    color: var(--white);
    background-color: rgba(255, 255, 255, .06);
    border-color: rgba(148, 163, 184, .32);
    backdrop-filter: blur(6px);
}

.btn--ghost:hover {
    color: var(--white);
    background-color: rgba(255, 255, 255, .11);
    border-color: rgba(56, 189, 248, .6);
    transform: translateY(-2px);
}

/* Contorno — para fundos claros */
.btn--outline {
    color: var(--gray-700);
    background-color: transparent;
    border-color: var(--gray-300);
}

.btn--outline:hover {
    color: var(--blue-700);
    border-color: var(--blue-500);
    background-color: rgba(37, 99, 235, .05);
}

/* Claro e fantasma-claro — usados sobre o painel de CTA */
.btn--light {
    color: var(--blue-700);
    background-color: var(--white);
    box-shadow: 0 10px 24px -10px rgba(2, 8, 23, .45);
}

.btn--light:hover {
    color: var(--blue-700);
    transform: translateY(-2px);
    box-shadow: 0 16px 30px -10px rgba(2, 8, 23, .55);
}

.btn--ghost-light {
    color: var(--white);
    border-color: rgba(255, 255, 255, .5);
}

.btn--ghost-light:hover {
    color: var(--white);
    background-color: rgba(255, 255, 255, .14);
    border-color: var(--white);
}

/* Estado de envio do formulário */
.btn__spinner {
    display: none;
    width: 17px;
    height: 17px;
    border: 2px solid rgba(255, 255, 255, .4);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

.btn.is-loading {
    pointer-events: none;
    opacity: .85;
}

.btn.is-loading .btn__spinner {
    display: block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* =============================================================================
   05. Cabeçalho e navegação
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 18, 32, .72);
    border-bottom: 1px solid rgba(148, 163, 184, .12);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    transition: background-color var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
    background: rgba(7, 12, 22, .92);
    box-shadow: 0 10px 30px -18px rgba(2, 8, 23, .9);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    min-height: var(--header-h);
}

/* --- Marca --- */
.brand {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
    color: var(--white);
    flex: 0 0 auto;
}

.brand:hover {
    color: var(--white);
}

.brand__mark svg {
    border-radius: 11px;
    transition: transform var(--transition), box-shadow var(--transition);
}

.brand:hover .brand__mark svg {
    transform: rotate(-6deg) scale(1.04);
    box-shadow: 0 8px 20px -6px rgba(56, 189, 248, .55);
}

.brand__text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.brand__name {
    font-size: 1.22rem;
    font-weight: 800;
    letter-spacing: -.02em;
}

.brand__name-accent {
    color: var(--sky-400);
}

.brand__tagline {
    font-size: .655rem;
    font-weight: 500;
    letter-spacing: .09em;
    text-transform: uppercase;
    color: #94A3B8;
}

/* --- Navegação (desktop) --- */
.site-nav {
    display: flex;
    align-items: center;
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: .2rem;
}

.site-nav__link {
    position: relative;
    display: block;
    padding: .55rem .8rem;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: #CBD5E1;
    border-radius: 8px;
}

.site-nav__link::after {
    content: "";
    position: absolute;
    left: .8rem;
    right: .8rem;
    bottom: .3rem;
    height: 2px;
    border-radius: 2px;
    background: var(--grad-brand);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.site-nav__link:hover,
.site-nav__link.is-active {
    color: var(--white);
}

.site-nav__link:hover::after,
.site-nav__link.is-active::after {
    transform: scaleX(1);
}

.site-nav__cta {
    display: none;
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex: 0 0 auto;
}

/* --- Botão hamburger --- */
.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(148, 163, 184, .28);
    border-radius: 10px;
    background: rgba(255, 255, 255, .05);
}

.nav-toggle__icon {
    display: block;
    position: relative;
    width: 20px;
    height: 14px;
}

.nav-toggle__icon span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: var(--white);
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle__icon span:nth-child(1) { top: 0; }
.nav-toggle__icon span:nth-child(2) { top: 6px; }
.nav-toggle__icon span:nth-child(3) { top: 12px; }

body.nav-open .nav-toggle__icon span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

body.nav-open .nav-toggle__icon span:nth-child(2) {
    opacity: 0;
}

body.nav-open .nav-toggle__icon span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* --- Barra de progresso de leitura --- */
.site-header__progress {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    overflow: hidden;
}

.site-header__progress span {
    display: block;
    width: 100%;
    height: 100%;
    background: var(--grad-brand);
    transform: scaleX(0);
    transform-origin: left;
}

.nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(2, 8, 23, .6);
    backdrop-filter: blur(2px);
    opacity: 0;
    transition: opacity var(--transition);
}

body.nav-open .nav-overlay {
    opacity: 1;
}

/* =============================================================================
   06. Fundos decorativos das seções
   ========================================================================== */
.section-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.section-bg__grid {
    position: absolute;
    inset: -1px;
    background-image:
        linear-gradient(rgba(148, 163, 184, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, .07) 1px, transparent 1px);
    background-size: 66px 66px;
    -webkit-mask-image: radial-gradient(ellipse 85% 70% at 50% 0%, #000 25%, transparent 100%);
    mask-image: radial-gradient(ellipse 85% 70% at 50% 0%, #000 25%, transparent 100%);
}

.section-bg__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: .5;
}

.section-bg__glow--1 {
    top: -18%;
    right: -8%;
    width: 46vw;
    height: 46vw;
    max-width: 620px;
    max-height: 620px;
    background: radial-gradient(circle, rgba(37, 99, 235, .55) 0%, transparent 70%);
}

.section-bg__glow--2 {
    bottom: -25%;
    left: -12%;
    width: 40vw;
    height: 40vw;
    max-width: 540px;
    max-height: 540px;
    background: radial-gradient(circle, rgba(56, 189, 248, .3) 0%, transparent 70%);
}

.section-bg__glow--3 {
    top: 10%;
    left: 50%;
    width: 60vw;
    height: 36vw;
    max-width: 820px;
    max-height: 460px;
    transform: translateX(-50%);
    background: radial-gradient(ellipse, rgba(37, 99, 235, .35) 0%, transparent 70%);
    opacity: .45;
}

/* =============================================================================
   07. Hero
   ========================================================================== */
.hero {
    position: relative;
    padding-block: clamp(3.25rem, 2rem + 6vw, 6.5rem) clamp(3.75rem, 2.5rem + 5vw, 7rem);
    background-color: var(--navy-800);
    background-image:
        radial-gradient(ellipse 120% 80% at 15% -10%, rgba(37, 99, 235, .22) 0%, transparent 60%),
        linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 55%, #0C1526 100%);
    color: var(--white);
    overflow: hidden;
    scroll-margin-top: var(--header-h);
}

.hero__inner {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(2.5rem, 1.5rem + 4vw, 4.5rem);
}

.hero__title {
    font-size: var(--fs-h1);
    margin-top: 1.35rem;
    font-weight: 800;
}

.hero__title .text-gradient {
    display: block;
}

.hero__text {
    max-width: 34rem;
    margin-top: 1.4rem;
    font-size: var(--fs-lead);
    color: #C2CEDE;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: .85rem;
    margin-top: 2.15rem;
}

.hero__highlights {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem 1.6rem;
    margin-top: 2.5rem;
    padding-top: 1.75rem;
    border-top: 1px solid rgba(148, 163, 184, .18);
}

.hero__highlights li {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: var(--fs-sm);
    color: #B6C3D4;
}

.hero__highlights .icon {
    color: var(--green-500);
}

/* --- Composição visual --- */
.hero__visual {
    position: relative;
    min-height: 380px;
}

.code-window {
    position: relative;
    z-index: 2;
    border-radius: var(--radius-lg);
    background: linear-gradient(160deg, rgba(23, 36, 61, .95) 0%, rgba(11, 18, 32, .98) 100%);
    border: 1px solid rgba(148, 163, 184, .2);
    box-shadow: 0 30px 60px -20px rgba(2, 8, 23, .85),
        inset 0 1px 0 rgba(255, 255, 255, .06);
    overflow: hidden;
    transform: perspective(1200px) rotateY(-7deg) rotateX(3deg);
    transition: transform 600ms cubic-bezier(.2, .8, .2, 1);
}

.hero__visual:hover .code-window {
    transform: perspective(1200px) rotateY(-3deg) rotateX(1deg);
}

.code-window__bar {
    display: flex;
    align-items: center;
    gap: .8rem;
    padding: .7rem 1rem;
    background: rgba(255, 255, 255, .04);
    border-bottom: 1px solid rgba(148, 163, 184, .14);
}

.code-window__dots {
    display: flex;
    gap: .35rem;
}

.code-window__dots i {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(148, 163, 184, .35);
}

.code-window__dots i:first-child { background: #F87171; }
.code-window__dots i:nth-child(2) { background: #FBBF24; }
.code-window__dots i:nth-child(3) { background: var(--green-500); }

.code-window__file {
    font-family: var(--font-mono);
    font-size: .74rem;
    color: #8FA0B8;
}

.code-window__code {
    margin: 0;
    padding: 1.1rem 1.25rem 1.4rem;
    font-family: var(--font-mono);
    font-size: clamp(.66rem, .55rem + .35vw, .8rem);
    line-height: 1.85;
    color: #D6E1F0;
    overflow: hidden;
}

.cw-line {
    display: block;
    white-space: pre;
}

.cw-key { color: #C792EA; }
.cw-cls { color: #FFCB6B; }
.cw-fn  { color: #82AAFF; }
.cw-var { color: #F07178; }
.cw-str { color: #C3E88D; }

/* --- Cartões flutuantes --- */
.float-card {
    position: absolute;
    z-index: 3;
    padding: .85rem 1rem;
    border-radius: var(--radius);
    background: rgba(17, 28, 49, .88);
    border: 1px solid rgba(148, 163, 184, .22);
    box-shadow: 0 18px 36px -14px rgba(2, 8, 23, .8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: float-y 6s ease-in-out infinite;
}

@keyframes float-y {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-9px); }
}

.float-card--status {
    top: -1.25rem;
    right: -.5rem;
    display: flex;
    align-items: center;
    gap: .7rem;
}

.float-card--metric {
    bottom: 1.5rem;
    left: -2rem;
    display: flex;
    flex-direction: column;
    gap: .35rem;
    min-width: 160px;
    animation-delay: -2.5s;
}

.float-card--stack {
    bottom: -1.5rem;
    right: 1.5rem;
    display: flex;
    gap: .4rem;
    animation-delay: -4s;
}

.float-card__icon {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: rgba(56, 189, 248, .16);
    color: var(--sky-400);
}

.float-card__icon--green {
    background: rgba(34, 197, 94, .16);
    color: var(--green-500);
}

.float-card__body {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.float-card__body strong {
    font-size: .82rem;
    color: var(--white);
}

.float-card__body small {
    font-size: .7rem;
    color: #93A3B8;
}

.float-card__label {
    font-size: .68rem;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: #93A3B8;
}

.float-card__value {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1;
    color: var(--white);
}

.float-card__value span {
    font-size: .95rem;
    color: var(--sky-400);
}

.float-card__chart {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 30px;
    margin-top: .2rem;
}

.float-card__chart i {
    width: 8px;
    height: var(--h);
    border-radius: 3px;
    background: linear-gradient(180deg, var(--sky-400), rgba(37, 99, 235, .5));
}

.float-card__chip {
    padding: .25rem .55rem;
    font-family: var(--font-mono);
    font-size: .68rem;
    color: #BFD6EA;
    background: rgba(56, 189, 248, .1);
    border: 1px solid rgba(56, 189, 248, .25);
    border-radius: 6px;
}

.hero__nodes {
    position: absolute;
    z-index: 1;
    right: -6%;
    bottom: -8%;
    width: 70%;
    height: 40%;
    opacity: .7;
}

/* =============================================================================
   08. Apresentação
   ========================================================================== */
.apresentacao__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    gap: clamp(2.25rem, 1.5rem + 3vw, 4rem);
    align-items: start;
}

.apresentacao__content p {
    margin-top: 1.15rem;
    color: var(--text-muted);
    font-size: var(--fs-lead);
}

.indicator-list {
    display: grid;
    gap: .9rem;
}

.indicator {
    display: flex;
    gap: 1.1rem;
    padding: 1.4rem;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition),
        border-color var(--transition);
}

.indicator:hover {
    transform: translateX(4px);
    border-color: rgba(37, 99, 235, .3);
    box-shadow: var(--shadow);
}

.indicator__icon {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    color: var(--white);
    background-image: var(--grad-brand);
    box-shadow: 0 8px 18px -8px rgba(37, 99, 235, .6);
}

.indicator__title {
    font-size: var(--fs-h3);
}

.indicator__text {
    margin-top: .35rem;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

/* =============================================================================
   09. Serviços
   ========================================================================== */
.grid--services {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 1.75rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition),
        border-color var(--transition);
}

/* Linha de destaque que aparece no topo do card ao passar o mouse. */
.service-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 3px;
    background-image: var(--grad-brand);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 320ms cubic-bezier(.4, 0, .2, 1);
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(37, 99, 235, .28);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card__icon {
    display: grid;
    place-items: center;
    width: 50px;
    height: 50px;
    margin-bottom: 1.35rem;
    border-radius: 14px;
    color: var(--blue-600);
    background: linear-gradient(140deg, rgba(37, 99, 235, .12), rgba(56, 189, 248, .12));
    border: 1px solid rgba(37, 99, 235, .16);
    transition: color var(--transition), background var(--transition),
        transform var(--transition);
}

.service-card:hover .service-card__icon {
    color: var(--white);
    background-image: var(--grad-brand);
    border-color: transparent;
    transform: scale(1.06) rotate(-4deg);
}

.service-card__title {
    font-size: var(--fs-h3);
}

.service-card__text {
    margin-top: .65rem;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    /* 'auto' empurra o link para a base, alinhando os cards da mesma linha. */
    margin-top: auto;
    padding-top: 1.35rem;
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: .02em;
    color: var(--blue-600);
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--transition), transform var(--transition);
}

.service-card__link .icon {
    transition: transform var(--transition);
}

.service-card:hover .service-card__link,
.service-card:focus-within .service-card__link {
    opacity: 1;
    transform: none;
}

.service-card__link:hover .icon {
    transform: translateX(4px);
}

/* =============================================================================
   10. Diferenciais
   ========================================================================== */
.grid--differentials {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    position: relative;
}

.differential-card {
    padding: 1.85rem 1.5rem;
    background: rgba(255, 255, 255, .035);
    border: 1px solid rgba(148, 163, 184, .16);
    border-radius: var(--radius-lg);
    transition: transform var(--transition), background-color var(--transition),
        border-color var(--transition);
}

.differential-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, .06);
    border-color: rgba(56, 189, 248, .4);
}

.differential-card__icon {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    margin-bottom: 1.4rem;
    border-radius: 15px;
    color: var(--sky-400);
    background: rgba(56, 189, 248, .1);
    border: 1px solid rgba(56, 189, 248, .22);
    transition: transform var(--transition), box-shadow var(--transition);
}

.differential-card:hover .differential-card__icon {
    transform: scale(1.06);
    box-shadow: 0 10px 24px -10px rgba(56, 189, 248, .6);
}

.differential-card__title {
    font-size: var(--fs-h3);
    color: var(--white);
}

.differential-card__text {
    margin-top: .6rem;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

/* =============================================================================
   11. Processo (timeline)
   ========================================================================== */
.timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1.75rem, 1rem + 2.5vw, 3rem) clamp(1rem, .7rem + 1vw, 1.5rem);
    counter-reset: step;
}

.timeline__item {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

/* Linha horizontal que conecta as etapas (apenas no desktop). */
.timeline__marker {
    position: relative;
    display: flex;
    align-items: center;
}

.timeline__marker::after {
    content: "";
    position: absolute;
    left: 46px;
    right: -1.5rem;
    height: 2px;
    background: repeating-linear-gradient(90deg,
        var(--gray-300) 0 6px, transparent 6px 12px);
}

.timeline__item:nth-child(3n) .timeline__marker::after,
.timeline__item:last-child .timeline__marker::after {
    display: none;
}

.timeline__dot {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 13px;
    color: var(--white);
    background-image: var(--grad-brand);
    box-shadow: 0 10px 22px -10px rgba(37, 99, 235, .7);
}

.timeline__card {
    position: relative;
    padding: 1.6rem 1.5rem;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition),
        border-color var(--transition);
}

.timeline__item:hover .timeline__card {
    transform: translateY(-5px);
    border-color: rgba(37, 99, 235, .28);
    box-shadow: var(--shadow);
}

.timeline__number {
    position: absolute;
    top: .85rem;
    right: 1.2rem;
    font-size: 2.1rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -.04em;
    color: var(--gray-100);
    transition: color var(--transition);
}

.timeline__item:hover .timeline__number {
    color: rgba(37, 99, 235, .16);
}

.timeline__title {
    font-size: var(--fs-h3);
    padding-right: 2.75rem;
}

.timeline__text {
    margin-top: .55rem;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

/* =============================================================================
   12. Projetos
   ========================================================================== */
.grid--projects {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition),
        border-color var(--transition);
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: rgba(37, 99, 235, .25);
    box-shadow: var(--shadow-lg);
}

.project-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: linear-gradient(140deg, var(--navy-700), var(--navy-800));
}

.project-card__media--blue  { background: linear-gradient(140deg, #14294D, #0B1220); }
.project-card__media--cyan  { background: linear-gradient(140deg, #0E3247, #0B1220); }
.project-card__media--green { background: linear-gradient(140deg, #123227, #0B1220); }

.project-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms cubic-bezier(.2, .8, .2, 1);
}

.project-card:hover .project-card__media img {
    transform: scale(1.05);
}

/* Capa gerada em CSS quando não há imagem disponível. */
.project-card__placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: .5rem;
    padding: 1.5rem;
    background-image:
        linear-gradient(rgba(148, 163, 184, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, .08) 1px, transparent 1px);
    background-size: 26px 26px;
}

.project-card__placeholder-bar {
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(90deg, rgba(56, 189, 248, .55), rgba(37, 99, 235, .18));
}

.project-card__placeholder-bar:nth-child(1) { width: 62%; }
.project-card__placeholder-bar:nth-child(2) { width: 40%; }
.project-card__placeholder-bar:nth-child(3) { width: 76%; opacity: .55; }

.project-card__placeholder-glyph {
    position: absolute;
    top: 1.25rem;
    left: 1.5rem;
    color: rgba(56, 189, 248, .5);
}

.project-card__placeholder-glyph .icon {
    width: 38px;
    height: 38px;
}

.project-card__category {
    position: absolute;
    top: .9rem;
    right: .9rem;
    padding: .3rem .7rem;
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: #E2F1FF;
    background: rgba(2, 8, 23, .6);
    border: 1px solid rgba(148, 163, 184, .28);
    border-radius: 999px;
    backdrop-filter: blur(6px);
}

.project-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1.5rem;
}

.project-card__title {
    font-size: 1.15rem;
}

.project-card__text {
    margin-top: .6rem;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin: 1.1rem 0 1.35rem;
}

.tech-tags li {
    padding: .25rem .6rem;
    font-family: var(--font-mono);
    font-size: .7rem;
    color: var(--gray-700);
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: 6px;
}

.project-card__body .btn {
    margin-top: auto;
    align-self: flex-start;
}

/* =============================================================================
   13. Tecnologias
   ========================================================================== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: .9rem;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .7rem;
    padding: 1.5rem .75rem;
    text-align: center;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform var(--transition), border-color var(--transition),
        box-shadow var(--transition);
}

.tech-item:hover {
    transform: translateY(-4px);
    border-color: rgba(37, 99, 235, .3);
    box-shadow: var(--shadow);
}

.tech-item__icon {
    color: var(--gray-500);
    transition: color var(--transition), transform var(--transition);
}

.tech-item__icon .icon {
    width: 30px;
    height: 30px;
}

.tech-item:hover .tech-item__icon {
    color: var(--blue-600);
    transform: scale(1.08);
}

.tech-item__name {
    font-size: var(--fs-sm);
    font-weight: 600;
}

/* =============================================================================
   14. Sobre
   ========================================================================== */
.sobre__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(2.25rem, 1.5rem + 3vw, 4rem);
    align-items: center;
}

.sobre__content p {
    margin-top: 1.15rem;
    font-size: var(--fs-lead);
    color: #B7C4D6;
}

.sobre__actions {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
    margin-top: 2.15rem;
}

.pillar-list {
    display: grid;
    gap: 1rem;
}

.pillar {
    padding: 1.5rem;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(148, 163, 184, .16);
    border-radius: var(--radius-lg);
    transition: transform var(--transition), border-color var(--transition);
}

.pillar:hover {
    transform: translateX(6px);
    border-color: rgba(56, 189, 248, .38);
}

.pillar__icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 1rem;
    border-radius: 12px;
    color: var(--sky-400);
    background: rgba(56, 189, 248, .1);
    border: 1px solid rgba(56, 189, 248, .22);
}

.pillar__title {
    font-size: var(--fs-h3);
    color: var(--white);
}

.pillar__text {
    margin-top: .45rem;
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

/* =============================================================================
   15. Call to action
   ========================================================================== */
.cta {
    position: relative;
    padding-block: clamp(3rem, 2rem + 3vw, 4.5rem);
    background: var(--navy-800);
}

.cta__panel {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: clamp(1.75rem, 1rem + 3vw, 3rem);
    padding: clamp(2rem, 1.4rem + 2.5vw, 3.5rem);
    border-radius: var(--radius-xl);
    background-image: linear-gradient(120deg, var(--blue-700) 0%, var(--blue-600) 45%, #0EA5E9 100%);
    box-shadow: 0 30px 60px -25px rgba(37, 99, 235, .75);
    overflow: hidden;
}

.cta__pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 88% 15%, rgba(255, 255, 255, .22) 0%, transparent 45%),
        linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
    background-size: auto, 44px 44px, 44px 44px;
    pointer-events: none;
}

.cta__content {
    position: relative;
    flex: 1 1 460px;
}

.cta__title {
    font-size: clamp(1.5rem, 1.15rem + 1.5vw, 2.25rem);
    color: var(--white);
}

.cta__text {
    margin-top: .9rem;
    font-size: var(--fs-lead);
    color: rgba(255, 255, 255, .88);
    max-width: 44rem;
}

.cta__actions {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
}

/* =============================================================================
   16. Contato e formulário
   ========================================================================== */
.contato__grid {
    display: grid;
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: clamp(1.5rem, 1rem + 2vw, 2.5rem);
    align-items: start;
}

.contato__aside {
    padding: clamp(1.6rem, 1.2rem + 1vw, 2.25rem);
    border-radius: var(--radius-lg);
    color: var(--white);
    background-color: var(--navy-800);
    background-image:
        radial-gradient(ellipse 100% 80% at 100% 0%, rgba(37, 99, 235, .35) 0%, transparent 60%),
        linear-gradient(170deg, var(--navy-700), var(--navy-900));
    box-shadow: var(--shadow-lg);
}

.contato__aside-title {
    font-size: 1.3rem;
    color: var(--white);
}

.contato__aside-text {
    margin-top: .6rem;
    font-size: var(--fs-sm);
    color: #A9B7CA;
}

.contact-list {
    display: grid;
    gap: .55rem;
    margin-top: 1.75rem;
}

.contact-list__item {
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .8rem;
    border-radius: var(--radius);
    border: 1px solid rgba(148, 163, 184, .14);
    background: rgba(255, 255, 255, .035);
    color: var(--white);
    transition: background-color var(--transition), border-color var(--transition),
        transform var(--transition);
}

a.contact-list__item:hover {
    color: var(--white);
    background: rgba(255, 255, 255, .07);
    border-color: rgba(56, 189, 248, .4);
    transform: translateX(4px);
}

.contact-list__item--static {
    cursor: default;
}

.contact-list__icon {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 38px;
    height: 38px;
    border-radius: 11px;
    color: var(--sky-400);
    background: rgba(56, 189, 248, .12);
}

.contact-list__icon--green {
    color: var(--green-500);
    background: rgba(34, 197, 94, .14);
}

.contact-list__body {
    display: flex;
    flex-direction: column;
    line-height: 1.35;
    min-width: 0;
}

.contact-list__body strong {
    font-size: var(--fs-sm);
}

.contact-list__body small {
    font-size: var(--fs-xs);
    color: #9DACC0;
    overflow-wrap: anywhere;
}

.contato__privacy {
    display: flex;
    align-items: flex-start;
    gap: .55rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(148, 163, 184, .14);
    font-size: var(--fs-xs);
    color: #93A3B8;
}

.contato__privacy .icon {
    color: var(--green-500);
    margin-top: 1px;
}

/* --- Formulário --- */
.contato__form-wrap {
    padding: clamp(1.5rem, 1.1rem + 1.2vw, 2.25rem);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.form__row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 1rem;
}

.form__group {
    margin-bottom: 1.1rem;
}

.form__label {
    display: block;
    margin-bottom: .4rem;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.form__required {
    color: #DC2626;
}

.form__control {
    width: 100%;
    padding: .75rem .9rem;
    font-size: var(--fs-sm);
    color: var(--gray-900);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    transition: border-color var(--transition), box-shadow var(--transition),
        background-color var(--transition);
}

.form__control::placeholder {
    color: #9AA8BC;
}

.form__control:hover {
    border-color: var(--gray-300);
}

.form__control:focus {
    outline: none;
    background: var(--white);
    border-color: var(--blue-500);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .14);
}

.form__control.is-invalid {
    border-color: #DC2626;
    background: #FEF2F2;
}

.form__control.is-invalid:focus {
    box-shadow: 0 0 0 4px rgba(220, 38, 38, .14);
}

.form__textarea {
    min-height: 140px;
    resize: vertical;
    line-height: 1.6;
}

/* Seta personalizada do <select> */
.form__select-wrap {
    position: relative;
}

.form__select-wrap::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 1rem;
    width: 9px;
    height: 9px;
    margin-top: -6px;
    border-right: 2px solid var(--gray-500);
    border-bottom: 2px solid var(--gray-500);
    transform: rotate(45deg);
    pointer-events: none;
}

.form__select {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form__error {
    display: block;
    min-height: 1.15rem;
    margin-top: .3rem;
    font-size: var(--fs-xs);
    font-weight: 500;
    color: #DC2626;
}

.form__error:empty {
    min-height: 0;
    margin-top: 0;
}

.form__meta {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.form__counter {
    flex: 0 0 auto;
    margin-top: .3rem;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

.form__counter.is-near-limit {
    color: #D97706;
    font-weight: 600;
}

.form__note {
    margin-top: 1.1rem;
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

/* Campo isca (honeypot): fora da tela, mas não display:none —
   alguns robôs ignoram campos ocultos dessa forma. */
.form__honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* --- Alertas --- */
.alert {
    display: flex;
    align-items: flex-start;
    gap: .85rem;
    margin-bottom: 1.5rem;
    padding: 1rem 1.15rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: var(--fs-sm);
}

.alert strong {
    display: block;
    margin-bottom: .15rem;
}

.alert p {
    color: inherit;
    opacity: .9;
}

.alert__icon {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 28px;
    height: 28px;
    border-radius: 50%;
}

.alert--success {
    color: #14532D;
    background: #F0FDF4;
    border-color: #BBF7D0;
}

.alert--success .alert__icon {
    color: var(--white);
    background: var(--green-500);
}

.alert--error {
    color: #7F1D1D;
    background: #FEF2F2;
    border-color: #FECACA;
}

.alert--error .alert__icon {
    color: var(--white);
    background: #DC2626;
}

/* =============================================================================
   17. Rodapé
   ========================================================================== */
.site-footer {
    padding-block: clamp(3rem, 2rem + 3vw, 4.5rem) 1.75rem;
    color: #A9B7CA;
    background: var(--navy-900);
    border-top: 1px solid rgba(148, 163, 184, .12);
}

.site-footer__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
    gap: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
}

.brand--footer {
    margin-bottom: 1.1rem;
}

.site-footer__about {
    max-width: 32ch;
    font-size: var(--fs-sm);
}

.site-footer__title {
    margin-bottom: 1.1rem;
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--white);
}

.site-footer__list {
    display: grid;
    gap: .7rem;
    font-size: var(--fs-sm);
}

.site-footer__list a {
    color: #A9B7CA;
}

.site-footer__list a:hover {
    color: var(--sky-400);
}

.site-footer__list--contact a,
.site-footer__info {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
}

.site-footer__list--contact .icon,
.site-footer__info .icon {
    flex: 0 0 auto;
    margin-top: 2px;
    color: var(--sky-400);
}

.site-footer__list--contact span,
.site-footer__info span {
    overflow-wrap: anywhere;
}

.social-list {
    display: flex;
    gap: .55rem;
    margin-top: 1.5rem;
}

.social-list__link {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 11px;
    color: #CBD5E1;
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(148, 163, 184, .18);
    transition: color var(--transition), background-color var(--transition),
        border-color var(--transition), transform var(--transition);
}

.social-list__link:hover {
    color: var(--white);
    background-image: var(--grad-brand);
    border-color: transparent;
    transform: translateY(-3px);
}

.site-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: .5rem 1.5rem;
    margin-top: clamp(2.25rem, 1.5rem + 2vw, 3.25rem);
    padding-top: 1.6rem;
    border-top: 1px solid rgba(148, 163, 184, .12);
    font-size: var(--fs-xs);
}

.site-footer__legal {
    color: #7C8CA3;
}

/* =============================================================================
   18. Elementos flutuantes (WhatsApp e voltar ao topo)
   ========================================================================== */
.whatsapp-float {
    position: fixed;
    right: clamp(1rem, .6rem + 1vw, 1.5rem);
    bottom: clamp(1rem, .6rem + 1vw, 1.5rem);
    z-index: 95;
    display: flex;
    align-items: center;
    gap: .65rem;
    height: 58px;
    padding: 0 1.05rem;
    max-width: 58px;
    color: var(--white);
    background: linear-gradient(140deg, #22C55E, #15803D);
    border-radius: 999px;
    box-shadow: 0 14px 30px -10px rgba(21, 128, 61, .65);
    overflow: hidden;
    transition: max-width 380ms cubic-bezier(.2, .8, .2, 1),
        box-shadow var(--transition), transform var(--transition);
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
    max-width: 330px;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 18px 36px -10px rgba(21, 128, 61, .75);
}

.whatsapp-float__icon {
    flex: 0 0 auto;
    width: 27px;
    height: 27px;
    /* Centraliza o ícone dentro do círculo de 58px quando recolhido. */
    margin-left: -.075rem;
}

.whatsapp-float__label {
    font-size: var(--fs-sm);
    font-weight: 600;
    white-space: nowrap;
}

.back-to-top {
    position: fixed;
    right: clamp(1rem, .6rem + 1vw, 1.5rem);
    bottom: calc(clamp(1rem, .6rem + 1vw, 1.5rem) + 70px);
    z-index: 94;
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    color: var(--white);
    background: rgba(11, 18, 32, .85);
    border: 1px solid rgba(148, 163, 184, .28);
    border-radius: 12px;
    backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity var(--transition), transform var(--transition),
        visibility var(--transition), background-color var(--transition);
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.back-to-top:hover {
    background: var(--blue-600);
    border-color: var(--blue-600);
}

/* =============================================================================
   19. Página interna (contato)
   ========================================================================== */
.page-hero {
    position: relative;
    padding-block: clamp(2.75rem, 2rem + 3vw, 4.5rem);
    background-color: var(--navy-800);
    background-image: linear-gradient(180deg, var(--navy-900), var(--navy-800));
    color: var(--white);
    overflow: hidden;
}

.page-hero__inner {
    position: relative;
    max-width: 46rem;
}

.page-hero__title {
    margin-top: 1rem;
    font-size: clamp(1.9rem, 1.4rem + 2.2vw, 3rem);
}

.page-hero__text {
    margin-top: 1rem;
    font-size: var(--fs-lead);
    color: #B7C4D6;
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .5rem;
    font-size: var(--fs-xs);
    color: #8FA0B8;
}

.breadcrumb li + li::before {
    content: "/";
    margin-right: .5rem;
    color: rgba(148, 163, 184, .5);
}

.breadcrumb a {
    color: var(--sky-400);
}

.breadcrumb [aria-current="page"] {
    color: #CBD5E1;
}

/* =============================================================================
   20. Animações de entrada
   ========================================================================== */
.js [data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 620ms cubic-bezier(.2, .8, .2, 1),
        transform 620ms cubic-bezier(.2, .8, .2, 1);
    will-change: opacity, transform;
}

.js [data-reveal].is-revealed {
    opacity: 1;
    transform: none;
    will-change: auto;
}

.js [data-reveal-delay="1"] { transition-delay: 70ms; }
.js [data-reveal-delay="2"] { transition-delay: 140ms; }
.js [data-reveal-delay="3"] { transition-delay: 210ms; }
.js [data-reveal-delay="4"] { transition-delay: 280ms; }
.js [data-reveal-delay="5"] { transition-delay: 350ms; }
.js [data-reveal-delay="6"] { transition-delay: 420ms; }

/* Respeita a preferência do sistema por menos movimento. */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }

    .js [data-reveal] {
        opacity: 1;
        transform: none;
    }

    .code-window {
        transform: none;
    }

    .float-card {
        animation: none;
    }
}

/* =============================================================================
   21. Responsividade
   ========================================================================== */

/* --- Notebooks e telas médias --- */
@media (max-width: 1200px) {
    .grid--services {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .tech-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .float-card--metric {
        left: -1rem;
    }
}

/* --- Tablets em paisagem: nav vira menu lateral --- */
@media (max-width: 991px) {
    :root {
        --header-h: 68px;
    }

    /* Menu lateral deslizante */
    .site-nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        z-index: 110;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        width: min(86vw, 340px);
        padding: calc(var(--header-h) + 1.5rem) 1.5rem 2rem;
        background: var(--navy-900);
        border-left: 1px solid rgba(148, 163, 184, .16);
        box-shadow: -20px 0 50px -20px rgba(2, 8, 23, .8);
        transform: translateX(100%);
        transition: transform 320ms cubic-bezier(.2, .8, .2, 1);
        overflow-y: auto;
        overscroll-behavior: contain;
    }

    body.nav-open .site-nav {
        transform: none;
    }

    .site-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: .15rem;
    }

    .site-nav__link {
        padding: .85rem .6rem;
        font-size: 1rem;
        border-bottom: 1px solid rgba(148, 163, 184, .1);
        border-radius: 0;
    }

    .site-nav__link::after {
        display: none;
    }

    .site-nav__cta {
        display: block;
        margin-top: 1.75rem;
    }

    .site-header__cta {
        display: none;
    }

    .nav-toggle {
        display: inline-flex;
    }

    /* Menu fechado permanece fora da ordem de tabulação */
    body:not(.nav-open) .site-nav {
        visibility: hidden;
    }

    body.nav-open .site-nav {
        visibility: visible;
    }

    /* Layout em coluna única nas seções de duas colunas */
    .hero__inner,
    .apresentacao__inner,
    .sobre__inner,
    .contato__grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero__inner {
        gap: clamp(3rem, 2rem + 4vw, 4rem);
    }

    .hero__text {
        max-width: 100%;
    }

    .hero__visual {
        min-height: 0;
        max-width: 540px;
        margin-inline: auto;
        width: 100%;
    }

    .code-window {
        transform: none;
    }

    .hero__nodes {
        display: none;
    }

    .indicator-list,
    .pillar-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .grid--differentials {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .grid--projects {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .timeline {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .timeline__item:nth-child(3n) .timeline__marker::after {
        display: block;
    }

    .timeline__item:nth-child(2n) .timeline__marker::after,
    .timeline__item:last-child .timeline__marker::after {
        display: none;
    }

    .site-footer__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-footer__brand {
        grid-column: 1 / -1;
    }
}

/* --- Tablets em retrato e celulares grandes --- */
@media (max-width: 767px) {
    .grid--services {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tech-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .float-card--metric {
        left: 0;
        bottom: .75rem;
        transform: scale(.9);
        transform-origin: bottom left;
    }

    .float-card--status {
        right: 0;
        transform: scale(.9);
        transform-origin: top right;
    }

    .float-card--stack {
        display: none;
    }

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

    .cta__actions {
        width: 100%;
    }

    .cta__actions .btn {
        flex: 1 1 auto;
    }

    .form__row {
        grid-template-columns: minmax(0, 1fr);
    }

    .brand__tagline {
        display: none;
    }
}

/* --- Celulares --- */
@media (max-width: 575px) {
    .grid--services,
    .grid--differentials,
    .grid--projects,
    .timeline,
    .indicator-list,
    .pillar-list,
    .site-footer__grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .timeline__marker::after {
        display: none !important;
    }

    .tech-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero__actions .btn,
    .sobre__actions .btn {
        width: 100%;
    }

    .hero__highlights {
        gap: .55rem;
        flex-direction: column;
    }

    /* Em telas pequenas o botão de WhatsApp fica sempre compacto. */
    .whatsapp-float {
        max-width: 56px;
        height: 56px;
        padding: 0 .95rem;
    }

    .whatsapp-float:hover,
    .whatsapp-float:focus-visible {
        max-width: 56px;
    }

    .whatsapp-float__label {
        display: none;
    }

    .back-to-top {
        width: 42px;
        height: 42px;
        bottom: calc(clamp(1rem, .6rem + 1vw, 1.5rem) + 66px);
    }

    .float-card--metric,
    .float-card--status {
        transform: scale(.82);
    }

    .site-footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .contato__form-wrap,
    .contato__aside {
        border-radius: var(--radius);
    }
}

/* --- Telas muito estreitas (320px) --- */
@media (max-width: 359px) {
    :root {
        --gutter: 1rem;
    }

    .brand__name {
        font-size: 1.05rem;
    }

    .code-window__code {
        font-size: .6rem;
    }
}

/* --- Telas grandes --- */
@media (min-width: 1600px) {
    :root {
        --container: 1280px;
    }
}

/* =============================================================================
   Impressão
   ========================================================================== */
@media print {
    .site-header,
    .whatsapp-float,
    .back-to-top,
    .nav-overlay,
    .section-bg,
    .hero__visual,
    .cta {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }

    .section,
    .hero {
        padding-block: 1.5rem;
        background: #fff !important;
        color: #000 !important;
    }
}