/* =========================
   Base / Tokens
========================= */
:root{
  --text: #0f172a;
  --muted: #64748b;
  --white: #fff;

  --primary: #1d4ed8;     /* azul (abas ativas, foco) */
  --primary-2: #0ea5e9;   /* azul-ciano (destaques) */

  --success: #10b981;     /* verde (download) */
  --success-100:#ecfdf5;  /* fundo verde claro */
  --success-200:#bbf7d0;  /* borda verde clara */

  --neutral-50:#f8fafc;   /* cinza muito claro (seções) */
  --neutral-100:#f1f5f9;  /* cinza claro (abas) */
  --neutral-200:#e2e8f0;  /* borda */
  --neutral-300:#e5e7eb;  /* divisórias */

  --shadow: 0 10px 30px rgba(2, 6, 23, .08);
  --radius: 14px;
  --gap: 24px;
  --container: 1200px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.55;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

/* =========================
   Header / Nav
========================= */
.header{
  position: sticky;
  top: 0;
  z-index: 10;
  background: #fff;
  border-bottom: 1px solid var(--neutral-300);
}
.nav{
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.nav__brand{ display:flex; align-items:center; gap:10px; font-weight:700 }
.nav__icon{ color: var(--primary) }
.nav__menu{ display:flex; gap:20px; list-style:none; margin:0; padding:0 }
.nav__link{ padding:8px 10px; color:#334155; font-weight:500 }
.nav__link:hover{ color: var(--primary) }
.nav__toggle{ display:none }

/* =========================
   Hero
========================= */
.hero{
  background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 100%);
  color: #fff;
  padding: 56px 0 72px;
}
.hero__content{ text-align:center; max-width: 900px; margin: 0 auto }
.hero__title{ margin:0 0 10px; font-size: clamp(28px, 4vw, 40px); font-weight:800; letter-spacing:-.02em }
.hero__highlight{ color:#ffd166 }
.hero__description{ margin:0; opacity:.95; font-weight:500 }

/* =========================
   Converter Section
========================= */
.converter{
  background: var(--neutral-50);
  padding: 48px 0 24px;
}

/* Wrapper SEM espaço lateral (sidebar removida) */
.converter__wrapper{
  display:flex;
  justify-content:center;
  align-items:flex-start;
  gap: 0;                    /* sem vão ao lado */
}

/* Remove completamente a sidebar */
.converter__sidebar{
  display:none !important;
  width:0; flex:0 0 0; margin:0; padding:0; border:0;
}

/* Área principal do conversor (card central) */
.converter__main{
  flex: 0 1 760px;
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
}

/* Card do conversor */
.tabs{
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--neutral-200);
  padding: 16px;
}

/* Abas – estilo do print: cinza claro + ativa com sublinhado azul */
.tabs__nav{
  display:flex; gap:8px; flex-wrap: wrap;
  background: var(--neutral-100);
  border-radius: 12px 12px 0 0;
  padding: 4px;
}
.tabs__button{
  position: relative;
  display:flex; align-items:center; gap:8px;
  padding:12px 16px;
  border:0;
  border-radius: 10px 10px 0 0;
  background: transparent;
  color:#334155;
  font-weight:600;
  cursor:pointer;
  transition: color .2s ease;
}
.tabs__button:hover{ color:#1f2937 }
.tabs__button--active{
  background:#fff;
  color: var(--primary);
}
.tabs__button--active::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-1px;
  height:3px;
  background: var(--primary);
  border-bottom-left-radius: 3px;
  border-bottom-right-radius: 3px;
}

/* Conteúdo das abas */
.tabs__content{ border-top: 1px solid var(--neutral-300); }
.tab-pane{ display:none }
.tab-pane--active{ display:block }

/* Área de upload – borda tracejada azul como no print */
.upload-area{
  margin-top: 14px;
  background: #f8fbff;
  border-radius: 12px;
  border: 2px dashed #1d4ed8;
  min-height: 260px;
  display:grid; place-items:center;
}
.upload-area__content{ text-align:center; padding: 28px 16px; max-width: 560px }
.upload-area__icon{ font-size:42px; color:#94a3b8; margin-bottom:8px }
.upload-area__title{ margin:4px 0 6px; font-size:20px; font-weight:700; color:#1f2937 }
.upload-area__description{ margin:0 0 14px; color: var(--muted) }
.upload-area__input{ display:none }

/* =========================
   Botões
========================= */
.btn{
  --btn-pad: 10px 16px;
  display:inline-flex; align-items:center; gap:8px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor:pointer;
  transition: transform .04s ease, filter .15s ease, box-shadow .15s ease;
  user-select:none;
}
.btn:active{ transform: translateY(1px) }

/* Secundário (Escolher arquivo) – azul claro discreto */
.btn--secondary{
  padding: var(--btn-pad);
  background:#e6f2ff;             /* bem claro */
  color:#1e3a8a;
  border-color:#bfdbfe;
}
.btn--secondary:hover{ filter: brightness(.97) }

/* Download verde como no print */
.btn--download,
.btn--success{
  padding: var(--btn-pad);
  background: var(--success);
  color:#fff;
  border-color: #059669;
  box-shadow: 0 6px 18px rgba(16,185,129,.25);
}
.btn--download:hover,
.btn--success:hover{ filter: brightness(.96) }
.btn--download i{ font-size:14px } /* ícone à esquerda opcional */

/* =========================
   Progress / Results
========================= */
.progress-area, .results-area{ margin-top: 20px }

/* Barra de progresso */
.progress-bar{
  width:100%; height:10px; background: var(--neutral-300);
  border-radius:999px; overflow:hidden;
}
.progress-bar__fill{ width:0%; height:100%; background:#22c55e }

/* Resultados – bloco verde claro arredondado (print) */
.results-area{
  background: var(--success-100);
  border: 1px solid var(--success-200);
  border-radius: 12px;
  padding: 18px;
}
.results-area__title{
  margin:0 0 12px;
  font-size:18px;
  color:#14532d;
}

/* Itens de resultado (funciona se o JS gerar estas classes) */
.result-item{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px;
  background:#fff;
  border:1px solid #dcfce7;
  border-radius: 10px;
  padding:12px 16px;
}
.result-left{ display:flex; align-items:center; gap:10px }
.result-dot{
  width:14px; height:14px; border-radius:999px;
  background:#10b981; box-shadow: inset 0 0 0 2px #d1fae5;
}

/* =========================
   Features
========================= */
.features{ background:#fff; padding: 24px 0 48px }
.section__title{
  text-align:center; font-size: clamp(22px, 3vw, 32px);
  margin: 10px 0 26px; font-weight:800; letter-spacing:-.02em;
}
.features__grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.feature-card{
  background:#f8fafc; border:1px solid var(--neutral-300);
  border-radius: var(--radius); padding: 22px;
  text-align:center; box-shadow: var(--shadow);
}
.feature-card__icon{ font-size:28px; color: var(--primary); margin-bottom:10px }
.feature-card__title{ margin:0 0 6px; font-weight:800 }
.feature-card__description{ margin:0; color: var(--muted) }

/* =========================
   About
========================= */
.about{ background: var(--neutral-50); padding: 40px 0 60px }
.about__content{ max-width: 900px; margin:0 auto; text-align:center }
.about__text{ color:#475569 }

/* =========================
   Ads banners top/bottom
========================= */
.ad-banner{ padding: 10px 0 }
.ad-banner--top{ background:#fff }
.ad-banner--bottom{ background: var(--neutral-50) }

/* =========================
   Footer
========================= */
.footer{ background:#0f172a; color:#e2e8f0; padding: 40px 0 10px }
.footer__content{
  display:grid; gap: 20px;
  grid-template-columns: 1.2fr .9fr .9fr;
}
.footer__title{ margin:0 0 6px; color:#fff }
.footer__subtitle{ margin:0 0 6px; color:#fff }
.footer__links{ list-style:none; margin:0; padding:0 }
.footer__link{ color:#cbd5e1 }
.footer__link:hover{ color:#fff }
.footer__bottom{ margin-top: 16px; border-top:1px solid #1f2937; padding-top: 12px; text-align:center }

/* =========================
   Acessibilidade / Focus
========================= */
:focus-visible{
  outline: 3px solid rgba(29,78,216,.35);
  outline-offset: 2px;
}

/* =========================
   Responsivo
========================= */
@media (max-width: 1200px){
  .features__grid{ grid-template-columns: repeat(2, 1fr) }
}
@media (max-width: 768px){
  .converter__main{ max-width: 640px }
}
@media (max-width: 640px){
  .container{ width: min(100% - 32px, var(--container)) }
  .tabs{ padding:12px }
  .upload-area{ min-height: 220px }
  .features__grid{ grid-template-columns: 1fr }
  .footer__content{ grid-template-columns: 1fr }
  .nav__menu{ display:none } 
  .nav__toggle{ display:block; cursor:pointer }
}
/* === Sobre: layout em duas colunas (texto + QR) === */
.about__grid{
  display: grid;
  grid-template-columns: 1fr 320px; /* texto | QR */
  gap: 24px;
  align-items: center;
}

/* Mantém o texto centralizado visualmente como antes */
.about__textblock{
  text-align: center;
}

/* Cartão de doação ao lado do texto */
.donation{
  background: #fff;
  border: 1px solid var(--neutral-200);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow);
  text-align: center;
}

.donation__qr{
  display: block;
  width: 100%;
  max-width: 280px;   /* tamanho confortável do QR */
  margin: 0 auto 10px;
}

.donation__msg{
  margin: 0;
  color: #475569;
  font-size: 14px;
  line-height: 1.5;
}

/* Responsivo: empilha abaixo de ~900px */
@media (max-width: 900px){
  .about__grid{
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .donation{
    max-width: 360px;
    margin: 0 auto;   /* centraliza o cartão quando empilhado */
  }
}