/* Isis Chiká · comunicação e marketing (protótipo)
   Tokens primeiro; componentes depois. Sem dependências. */

:root {
  --color-ink: #1F1A2B;        /* berinjela quase preta: títulos, áreas escuras */
  --color-ink-2: #2E2740;      /* superfícies escuras secundárias */
  --color-paper: #FAF6F0;      /* fundo principal */
  --color-sand: #F1EAE0;       /* seções alternadas */
  --color-white: #FFFFFF;
  --color-cherry: #B8322A;     /* acento principal: botões e destaques sobre claro */
  --color-cherry-dark: #962820;
  --color-mustard: #F2B544;    /* acento sobre fundo escuro (nunca texto sobre claro) */
  --color-slate: #5B5566;      /* texto secundário */
  --color-border: #E2D9CC;
  --color-on-dark: #F5F0E8;
  --color-on-dark-muted: #C9C1D3;

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem;
  --space-5: 1.5rem; --space-6: 2rem; --space-7: 3rem; --space-8: 4.5rem; --space-9: 6rem;

  --radius: 8px;
  --radius-lg: 16px;
  --container: 1240px;
  --shadow: 0 1px 2px rgba(31, 26, 43, .06), 0 8px 24px rgba(31, 26, 43, .08);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font: 400 1rem/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; margin: 0 0 var(--space-4); letter-spacing: -.01em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 var(--space-4); }
ul, ol { margin: 0; padding: 0; list-style: none; }

.svg-sprite { display: none; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--space-4); }
@media (min-width: 768px) { .container { padding: 0 var(--space-6); } }

:focus-visible { outline: 3px solid var(--color-cherry); outline-offset: 3px; border-radius: 4px; }
.on-dark :focus-visible { outline-color: var(--color-mustard); }

.skip-link { position: absolute; left: var(--space-4); top: -100px; z-index: 100; background: var(--color-ink); color: var(--color-on-dark); padding: var(--space-2) var(--space-4); border-radius: var(--radius); }
.skip-link:focus { top: var(--space-2); }

.proto-bar { background: var(--color-mustard); color: var(--color-ink); text-align: center; font-size: .85rem; font-weight: 500; padding: var(--space-2) var(--space-4); }

/* Botões */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 48px; padding: .75rem 1.4rem; border-radius: 999px; border: 2px solid transparent;
  font: 600 1rem/1.2 var(--font-body); text-decoration: none; cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s, transform .2s;
}
.btn svg { width: 1.15em; height: 1.15em; flex: none; }
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--color-cherry); color: var(--color-white); }
.btn--primary:hover { background: var(--color-cherry-dark); }
.btn--ghost { border-color: currentColor; color: inherit; }
.btn--ghost:hover { background: var(--color-ink); border-color: var(--color-ink); color: var(--color-on-dark); }
.on-dark .btn--ghost:hover { background: var(--color-on-dark); border-color: var(--color-on-dark); color: var(--color-ink); }
.btn--sm { min-height: 42px; padding: .55rem 1.1rem; font-size: .95rem; }

.eyebrow { display: inline-flex; align-items: center; gap: var(--space-2); font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--color-cherry); margin-bottom: var(--space-3); }
.eyebrow::before { content: ""; width: 1.6rem; height: 2px; background: currentColor; }
.on-dark .eyebrow { color: var(--color-mustard); }

.text-link { display: inline-flex; align-items: center; gap: var(--space-2); font-weight: 600; color: var(--color-cherry); text-decoration: none; }
.text-link svg { width: 1.1em; height: 1.1em; transition: transform .2s; }
.text-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.text-link:hover svg { transform: translateX(3px); }

/* Cabeçalho */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(250, 246, 240, .94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--color-border); }
.site-header .container { display: flex; align-items: center; gap: var(--space-4); min-height: 72px; }
.brand { display: inline-flex; align-items: center; gap: var(--space-3); text-decoration: none; }
.brand-mark { width: 40px; height: 40px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-family: var(--font-display); font-weight: 600; font-size: 1.3rem; }
.brand-sub { font-size: .78rem; color: var(--color-slate); }
.on-dark .brand-sub { color: var(--color-on-dark-muted); }

.site-nav { margin-left: auto; }
.site-nav ul { display: flex; gap: var(--space-5); }
.site-nav a { text-decoration: none; font-weight: 500; font-size: .95rem; padding: var(--space-2) 0; border-bottom: 2px solid transparent; }
.site-nav a:hover { border-bottom-color: var(--color-cherry); }
.nav-toggle { display: none; margin-left: auto; width: 48px; height: 48px; border: 1px solid var(--color-border); border-radius: var(--radius); background: transparent; color: var(--color-ink); cursor: pointer; }
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 899px) {
  .header-cta { display: none; }
  .nav-toggle { display: inline-grid; place-items: center; }
  .site-nav { position: absolute; left: 0; right: 0; top: 100%; background: var(--color-paper); border-bottom: 1px solid var(--color-border); display: none; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; padding: var(--space-2) var(--space-4) var(--space-4); }
  .site-nav a { display: block; padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); }
}

/* Hero */
.hero { padding: var(--space-8) 0 var(--space-8); overflow: hidden; }
.hero-grid { display: grid; gap: var(--space-7); align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.05fr 1fr; } }
.hero h1 em { font-style: italic; color: var(--color-cherry); }
.hero-lead { font-size: 1.15rem; color: var(--color-slate); max-width: 36rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }
.hero-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-6); }
.tag { display: inline-block; padding: .3rem .8rem; border-radius: 999px; background: var(--color-white); border: 1px solid var(--color-border); font-size: .85rem; font-weight: 500; }

.collage { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); grid-template-rows: repeat(6, 1fr); aspect-ratio: 1 / 1; max-width: 560px; margin: 0 auto; width: 100%; }
.collage img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow); border: 6px solid var(--color-white); }
.collage .c1 { grid-column: 1 / 5; grid-row: 1 / 4; transform: rotate(-3deg); }
.collage .c2 { grid-column: 4 / 7; grid-row: 2 / 5; transform: rotate(4deg); z-index: 2; }
.collage .c3 { grid-column: 1 / 4; grid-row: 4 / 7; transform: rotate(2deg); z-index: 1; }
.collage .c4 { grid-column: 3 / 7; grid-row: 4 / 7; transform: translate(8%, 6%) rotate(-2deg); z-index: 3; }
.collage::before { content: ""; position: absolute; width: 38%; aspect-ratio: 1; border-radius: 50%; background: var(--color-mustard); right: -6%; top: -6%; z-index: 0; }
.collage > * { position: relative; z-index: 1; }

/* Seções */
.section { padding: var(--space-8) 0; }
@media (min-width: 768px) { .section { padding: var(--space-9) 0; } }
.section--alt { background: var(--color-sand); }
.on-dark { background: var(--color-ink); color: var(--color-on-dark); }
.on-dark p { color: var(--color-on-dark-muted); }
.section-head { max-width: 44rem; margin-bottom: var(--space-7); }
.section-head p { color: var(--color-slate); font-size: 1.08rem; }
.on-dark .section-head p { color: var(--color-on-dark-muted); }

/* Serviços */
.services { display: grid; gap: var(--space-4); }
@media (min-width: 640px) { .services { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .services { grid-template-columns: repeat(4, 1fr); } }
.service { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6) var(--space-5); display: flex; flex-direction: column; }
.service-icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--color-sand); color: var(--color-cherry); margin-bottom: var(--space-5); }
.service-icon svg { width: 26px; height: 26px; }
.service p { color: var(--color-slate); }
.service ul { margin-top: auto; padding-top: var(--space-3); border-top: 1px solid var(--color-border); }
.service li { position: relative; padding: .3rem 0 .3rem 1.1rem; font-size: .93rem; }
.service li::before { content: ""; position: absolute; left: 0; top: .85rem; width: 6px; height: 6px; border-radius: 50%; background: var(--color-cherry); }

/* Trabalhos */
.works { display: grid; gap: var(--space-5); }
@media (min-width: 640px) { .works { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .works { grid-template-columns: repeat(3, 1fr); } }
.work { background: var(--color-white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); display: flex; flex-direction: column; transition: transform .25s, box-shadow .25s; }
.work:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.work img { aspect-ratio: 4 / 3; width: 100%; object-fit: cover; background: var(--color-sand); }
.work-body { padding: var(--space-5); display: flex; flex-direction: column; flex: 1; }
.work-meta { font-size: .82rem; color: var(--color-slate); margin-bottom: var(--space-2); }
.work h3 { margin-bottom: var(--space-2); }
.work p { color: var(--color-slate); font-size: .95rem; }
.work-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: auto 0 var(--space-4); padding-top: var(--space-2); }
.work-tags li { font-size: .78rem; font-weight: 500; padding: .2rem .6rem; border-radius: 999px; background: var(--color-sand); }
.work .text-link { font-size: .95rem; }
@media (min-width: 1024px) { .work--wide { grid-column: span 2; } .work--wide img { aspect-ratio: 16 / 9; } }

/* Como funciona */
.steps { display: grid; gap: var(--space-5); counter-reset: step; }
@media (min-width: 768px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step { counter-increment: step; border-top: 2px solid var(--color-mustard); padding-top: var(--space-5); }
.step::before { content: "0" counter(step); display: block; font-family: var(--font-display); font-size: 2.6rem; font-weight: 600; color: var(--color-mustard); line-height: 1; margin-bottom: var(--space-4); }
.step h3 { color: var(--color-on-dark); }

/* Sobre */
.about-grid { display: grid; gap: var(--space-7); align-items: center; }
@media (min-width: 900px) { .about-grid { grid-template-columns: .9fr 1.1fr; } }
.portrait { aspect-ratio: 4 / 5; border-radius: var(--radius-lg); background: var(--color-ink); color: var(--color-on-dark); display: grid; place-items: center; text-align: center; padding: var(--space-6); position: relative; overflow: hidden; max-width: 460px; width: 100%; margin: 0 auto; }
.portrait::after { content: ""; position: absolute; width: 70%; aspect-ratio: 1; border-radius: 50%; background: var(--color-cherry); bottom: -25%; right: -25%; opacity: .9; }
.portrait-mark { width: 96px; height: 96px; margin: 0 auto var(--space-4); }
.portrait-name { font-family: var(--font-display); font-size: 2rem; font-weight: 600; display: block; }
.portrait-note { font-size: .85rem; color: var(--color-on-dark-muted); display: block; margin-top: var(--space-2); }
.portrait > div { position: relative; z-index: 1; }
.about-text p { font-size: 1.05rem; }
.facts { display: grid; gap: var(--space-3); margin-top: var(--space-5); }
@media (min-width: 560px) { .facts { grid-template-columns: repeat(2, 1fr); } }
.facts li { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-4); }
.facts strong { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--color-cherry); margin-bottom: var(--space-1); }
.pending { display: inline-block; font-size: .8rem; font-weight: 600; color: var(--color-ink); background: #FCE8B8; border: 1px dashed #C99418; border-radius: 6px; padding: .1rem .5rem; }

/* Contato */
.contact-grid { display: grid; gap: var(--space-7); }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1.1fr .9fr; align-items: start; } }
.contact-cards { display: grid; gap: var(--space-3); }
.contact-card { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-4) var(--space-5); border-radius: var(--radius-lg); background: var(--color-ink-2); color: var(--color-on-dark); text-decoration: none; border: 1px solid rgba(245, 240, 232, .12); transition: border-color .2s, transform .2s; }
a.contact-card:hover { border-color: var(--color-mustard); transform: translateX(4px); }
.contact-card svg { width: 26px; height: 26px; flex: none; color: var(--color-mustard); }
.contact-card strong { display: block; }
.contact-card span { font-size: .9rem; color: var(--color-on-dark-muted); }
.contact-card--pending { border-style: dashed; }

/* Rodapé */
.site-footer { background: var(--color-ink); color: var(--color-on-dark-muted); border-top: 1px solid rgba(245, 240, 232, .1); padding: var(--space-6) 0; font-size: .9rem; }
.site-footer .container { display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: space-between; align-items: center; }
.site-footer .brand-name { color: var(--color-on-dark); }
.site-footer .brand-sub { color: var(--color-on-dark-muted); }
.site-footer a { color: var(--color-on-dark); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .btn:hover, .work:hover, a.contact-card:hover { transform: none; }
}