/* ========= Reset e acessibilidade ========= */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ========= Tema Girly (rosa + lavanda) ========= */
:root {
  /* dark */
  --bg: #0d1b16;           /* fundo verde escuro */
  --surface: #142420;      /* cartões */
  --border: #1d322c;

  --text: #e8fff5;         /* quase branco esverdeado */
  --muted: #a8cbb7;        /* verde suave */

  --primary: #34d399;      /* verde menta */
  --primary-600: #059669;  /* verde esmeralda (hover) */
  --accent: #6ee7b7;       /* verde claro */
  --shadow: 0 10px 30px rgba(52, 211, 153, .18);

  
  --glass: rgba(52, 211, 153, 0.08);
}

html[data-theme="light"] {
  /* light */
  --bg: #f4fef9;
  --surface: #ffffff;
  --border: #d1fae5;

  --text: #0f172a;
  --muted: #4b6357;

  --primary: #10b981;
  --primary-600: #059669;
  --accent: #6ee7b7;
  --shadow: 0 12px 36px rgba(16, 185, 129, .18);

  --glass: rgba(110, 231, 183, 0.45);
}


/* ========= Base ========= */
body {
  background: radial-gradient(1200px 600px at 10% -20%, rgba(255,122,200,.08), transparent 60%) ,
              radial-gradient(1200px 600px at 90% 120%, rgba(199,162,255,.08), transparent 60%) ,
              var(--bg);
  color: var(--text);
  font: 400 16px/1.65 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
.container { max-width: 900px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }

/* ========= Header ========= */
.site-header {
  position: sticky; top: 0; z-index: 10;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--glass), transparent);
  backdrop-filter: blur(8px);
}
.header-wrap {
  min-height: 64px; display: grid; align-items: center;
  grid-template-columns: 1fr auto 1fr;
}
.nav { justify-self: start; }
.nav a { color: var(--muted); text-decoration: none; }
.logo {
  justify-self: center; font-weight: 800; letter-spacing: .5px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.btn.small { padding: 8px 10px; border-radius: 10px; justify-self: end; }

/* ========= Cartão principal ========= */
.card.app {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 20px;
}
.subtitle {
  font-size: 1.25rem; margin-bottom: 14px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.muted { color: var(--muted); }

/* ========= Form nova tarefa ========= */
.row { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-top: 10px; }
input[type="text"] {
  background: transparent; color: var(--text);
  border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 14px; outline: none; transition: border-color .15s, box-shadow .15s;
}
input[type="text"]:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(255,122,200,.25); }

/* ========= Chips de filtro ========= */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0 8px; }
.chip {
  border: 1px solid var(--border);
  background: transparent; color: var(--text);
  padding: 8px 12px; border-radius: 999px; cursor: pointer; font-weight: 700;
}
.chip.is-active {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: #2a1037; border-color: transparent;
}

/* ========= Lista ========= */
.lista { list-style: none; display: grid; gap: 10px; margin-top: 6px; }
.item {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px;
  border: 1px solid var(--border); border-radius: 14px; padding: 10px 12px;
  background: rgba(255,255,255, .02);
}
.item:hover { border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); }
.check {
  appearance: none; width: 20px; height: 20px; border-radius: 6px;
  border: 2px solid var(--border); display: grid; place-items: center; cursor: pointer;
  background: transparent;
}
.check:checked {
  border-color: var(--primary); background: var(--primary);
  box-shadow: 0 0 0 3px rgba(255,122,200,.25);
}
.texto {
  color: var(--text);
  word-break: break-word;
}
.item.done .texto { color: var(--muted); text-decoration: line-through; text-decoration-thickness: 2px; }
.btn-icon {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 6px 8px; cursor: pointer;
}
.btn-icon:hover { border-color: var(--primary); }

/* ========= Footer do app ========= */
.app-footer {
  margin-top: 12px; display: flex; align-items: center; justify-content: space-between;
  gap: 10px; flex-wrap: wrap;
}

/* ========= Botões ========= */
.btn {
  display: inline-block; border: none; cursor: pointer;
  background: var(--primary); color: #2a1037;
  padding: 12px 14px; border-radius: 12px; font-weight: 800;
  box-shadow:
    0 2px 0 rgba(0,0,0,.12),
    0 6px 18px rgba(255, 122, 200, .25);
  transition: transform .12s ease, background .2s ease, box-shadow .2s ease, filter .2s;
}
.btn:hover { transform: translateY(-1px); background: var(--primary-600); filter: saturate(1.08); }
.btn:active { transform: translateY(0); }
.btn.btn-outline {
  background: transparent; color: var(--text); border: 1px solid var(--border);
  box-shadow: none; font-weight: 700;
}

/* ========= Responsividade ========= */
@media (max-width: 560px) {
  .row { grid-template-columns: 1fr; }
}