:root {
      --fundo:       #050d1a;
      --fundo-card:  #0a1929;
      --borda:       rgba(0,212,255,.12);
      --borda-h:     rgba(0,212,255,.35);
      --azul-neon:   #00d4ff;
      --azul-royal:  #1a6fff;
      --texto:       #e8f0fe;
      --texto-suave: #8eafd4;
      --texto-fraco: #4a6785;
      --verde:       #00e676;
      --vermelho:    #ff5252;
      --amarelo:     #ffca28;
      --grad:        linear-gradient(135deg,#1a6fff,#00d4ff);
      --fonte-d:     'Oxanium', sans-serif;
      --fonte-c:     'Plus Jakarta Sans', sans-serif;
      --r:           14px;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      background: var(--fundo);
      min-height: 100dvh;
      font-family: var(--fonte-c);
      background-image:
        linear-gradient(rgba(0,212,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,.03) 1px, transparent 1px);
      background-size: 50px 50px;
      padding-bottom: 3rem;
    }

    /* ── Topo ── */
    .topo {
      position: sticky; top: 0;
      padding: .9rem 2rem;
      background: rgba(5,13,26,.9);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--borda);
      display: flex; align-items: center; gap: 1rem;
      z-index: 100;
    }
    .topo-voltar {
      display: flex; align-items: center; gap: .5rem;
      color: var(--texto-suave); font-size: .85rem; font-weight: 500;
      text-decoration: none; transition: color .2s;
    }
    .topo-voltar:hover { color: var(--azul-neon); }
    .topo-titulo { font-family: var(--fonte-d); font-size: .95rem; font-weight: 700; color: var(--texto); }
    .topo-badge {
      margin-left: auto; font-size: .72rem; font-weight: 600;
      letter-spacing: .1em; text-transform: uppercase;
      background: rgba(0,212,255,.08); border: 1px solid rgba(0,212,255,.2);
      color: var(--azul-neon); padding: .25rem .8rem; border-radius: 100px;
    }

    /* ── Container ── */
    .container {
      max-width: 680px; margin: 0 auto; padding: 3rem 1.5rem;
    }

    /* ── Cabeçalho ── */
    .pagina-header {
      text-align: center; margin-bottom: 2.5rem;
    }
    .pagina-label {
      display: inline-flex; align-items: center; gap: .5rem;
      font-family: var(--fonte-d); font-size: .75rem; font-weight: 600;
      letter-spacing: .15em; text-transform: uppercase;
      color: var(--azul-neon); background: rgba(0,212,255,.08);
      border: 1px solid rgba(0,212,255,.2); padding: .3rem 1rem;
      border-radius: 100px; margin-bottom: 1rem;
    }
    .pagina-titulo {
      font-family: var(--fonte-d); font-size: 2.2rem; font-weight: 800;
      color: var(--texto); margin-bottom: .4rem;
    }
    .pagina-titulo span {
      background: var(--grad);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .pagina-sub { color: var(--texto-suave); font-size: .9rem; }

    /* ── Stats ── */
    .stats {
      display: flex; gap: 1px;
      background: var(--borda);
      border: 1px solid var(--borda);
      border-radius: var(--r);
      overflow: hidden;
      margin-bottom: 1.75rem;
    }
    .stat {
      flex: 1; padding: .9rem; text-align: center;
      background: var(--fundo-card);
      display: flex; flex-direction: column; gap: .2rem;
    }
    .stat-num {
      font-family: var(--fonte-d); font-size: 1.5rem; font-weight: 800;
      background: var(--grad); -webkit-background-clip: text;
      -webkit-text-fill-color: transparent; background-clip: text;
    }
    .stat-num.verde  { background: none; -webkit-text-fill-color: var(--verde); }
    .stat-num.amarelo{ background: none; -webkit-text-fill-color: var(--amarelo); }
    .stat-label { font-size: .72rem; color: var(--texto-fraco); font-weight: 500; }

    /* ── Input de nova tarefa ── */
    .input-wrapper {
      background: var(--fundo-card);
      border: 1px solid var(--borda);
      border-radius: var(--r);
      padding: .75rem 1rem;
      display: flex; align-items: center; gap: .75rem;
      transition: border-color .2s;
      margin-bottom: .75rem;
    }
    .input-wrapper:focus-within { border-color: rgba(0,212,255,.5); box-shadow: 0 0 0 3px rgba(0,212,255,.07); }
    .input-wrapper i { color: var(--azul-neon); font-size: 1.1rem; flex-shrink: 0; }
    .input-tarefa {
      flex: 1; background: none; border: none; outline: none;
      color: var(--texto); font-family: var(--fonte-c); font-size: .95rem;
    }
    .input-tarefa::placeholder { color: var(--texto-fraco); }

    /* Linha 2 do input: prioridade + data + botão */
    .input-extra {
      display: flex; align-items: center; gap: .6rem;
      flex-wrap: wrap; margin-bottom: 1.5rem;
    }
    .select-prioridade, .input-data {
      background: var(--fundo-card); border: 1px solid var(--borda);
      border-radius: 8px; padding: .5rem .85rem;
      color: var(--texto-suave); font-family: var(--fonte-c); font-size: .82rem;
      outline: none; cursor: pointer; transition: border-color .2s;
    }
    .select-prioridade:focus, .input-data:focus { border-color: rgba(0,212,255,.4); }
    .input-data::-webkit-calendar-picker-indicator { filter: invert(.4); }

    .btn-adicionar {
      margin-left: auto;
      display: flex; align-items: center; gap: .5rem;
      padding: .55rem 1.35rem;
      background: var(--grad); color: #fff;
      border: none; border-radius: 8px;
      font-family: var(--fonte-c); font-size: .88rem; font-weight: 600;
      cursor: pointer; transition: filter .2s, transform .15s;
      white-space: nowrap;
    }
    .btn-adicionar:hover { filter: brightness(1.1); transform: translateY(-1px); }
    .btn-adicionar:active { transform: translateY(0); }

    /* ── Filtros ── */
    .filtros {
      display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1.25rem;
    }
    .filtro-btn {
      padding: .4rem 1rem;
      background: var(--fundo-card); border: 1px solid var(--borda);
      border-radius: 100px; color: var(--texto-suave);
      font-family: var(--fonte-c); font-size: .8rem; font-weight: 500;
      cursor: pointer; transition: all .2s;
    }
    .filtro-btn:hover,
    .filtro-btn.ativo { background: var(--grad); border-color: transparent; color: #fff; }

    /* ── Lista de tarefas ── */
    .lista-tarefas { display: flex; flex-direction: column; gap: .6rem; }

    .tarefa-item {
      background: var(--fundo-card);
      border: 1px solid var(--borda);
      border-radius: var(--r);
      padding: 1rem 1.25rem;
      display: flex; align-items: center; gap: .85rem;
      transition: border-color .2s, background .2s, transform .2s, opacity .3s;
      animation: entrarTarefa .3s ease;
    }
    @keyframes entrarTarefa {
      from { opacity: 0; transform: translateY(-8px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    .tarefa-item:hover { border-color: var(--borda-h); }
    .tarefa-item.concluida {
      opacity: .55;
      background: rgba(0,0,0,.1);
    }
    .tarefa-item.concluida .tarefa-texto {
      text-decoration: line-through; color: var(--texto-fraco);
    }

    /* Checkbox custom */
    .tarefa-check {
      width: 22px; height: 22px; flex-shrink: 0;
      border-radius: 6px; border: 2px solid var(--borda-h);
      background: none; cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      transition: all .2s; color: #fff; font-size: .85rem;
    }
    .tarefa-check.marcado {
      background: var(--verde); border-color: var(--verde);
    }
    .tarefa-check:hover { border-color: var(--verde); }

    .tarefa-corpo { flex: 1; min-width: 0; }
    .tarefa-texto {
      font-size: .92rem; font-weight: 500; color: var(--texto);
      transition: color .2s; word-break: break-word;
    }
    .tarefa-meta {
      display: flex; align-items: center; gap: .75rem; margin-top: .3rem;
      flex-wrap: wrap;
    }
    .tarefa-data {
      font-size: .73rem; color: var(--texto-fraco);
      display: flex; align-items: center; gap: .3rem;
    }
    .tarefa-data.vencida { color: var(--vermelho); }

    /* Badges de prioridade */
    .prioridade {
      font-size: .68rem; font-weight: 700;
      font-family: var(--fonte-d); letter-spacing: .05em;
      padding: .15rem .55rem; border-radius: 5px;
    }
    .prioridade-alta   { background: rgba(255,82,82,.12);  color: #ff5252; border: 1px solid rgba(255,82,82,.25); }
    .prioridade-media  { background: rgba(255,202,40,.1);  color: #ffca28; border: 1px solid rgba(255,202,40,.25); }
    .prioridade-baixa  { background: rgba(0,230,118,.1);   color: #00e676; border: 1px solid rgba(0,230,118,.25); }

    /* Botões de ação da tarefa */
    .tarefa-acoes {
      display: flex; gap: .35rem; flex-shrink: 0;
    }
    .tarefa-btn {
      width: 30px; height: 30px;
      border-radius: 7px; border: 1px solid var(--borda);
      background: none; cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      color: var(--texto-fraco); font-size: .9rem;
      transition: all .15s;
    }
    .tarefa-btn-del:hover { color: var(--vermelho); border-color: rgba(255,82,82,.3); background: rgba(255,82,82,.06); }

    /* Vazio */
    .lista-vazia {
      text-align: center; padding: 3rem 1rem;
      color: var(--texto-fraco); font-size: .9rem;
    }
    .lista-vazia i { font-size: 2.5rem; color: var(--borda-h); display: block; margin-bottom: .75rem; }

    /* Glows */
    .glow-fundo { position: fixed; pointer-events: none; border-radius: 50%; filter: blur(80px); z-index: -1; }
    .glow-1 { width: 500px; height: 500px; background: radial-gradient(circle, rgba(26,111,255,.09), transparent 70%); top: -10%; left: -15%; }
    .glow-2 { width: 400px; height: 400px; background: radial-gradient(circle, rgba(0,212,255,.07), transparent 70%); bottom: 0; right: -10%; }

/* ============================================================
   TEMA CLARO — To-do List
   ============================================================ */
html[data-tema="claro"] {
  --fundo: #f2f5fc; --fundo-card: #ffffff;
  --borda: rgba(26,111,255,.2); --borda-h: rgba(26,111,255,.45);
  --texto: #0d1b2a; --texto-suave: #2d4a6e; --texto-fraco: #5a7a9e;
  --verde: #16a34a; --vermelho: #dc2626; --amarelo: #b47800;
}
html[data-tema="claro"] body { background-color: var(--fundo); background-image: linear-gradient(rgba(26,111,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(26,111,255,.05) 1px, transparent 1px); }
html[data-tema="claro"] .topo  { background: rgba(242,245,252,.94); border-bottom-color: rgba(26,111,255,.15); }
html[data-tema="claro"] .topo-titulo { color: var(--texto); }
html[data-tema="claro"] .topo-badge  { background: rgba(26,111,255,.1); border-color: rgba(26,111,255,.28); color: #1a6fff; }
html[data-tema="claro"] .stats { background: rgba(26,111,255,.1); }
html[data-tema="claro"] .stat  { background: #ffffff; }
html[data-tema="claro"] .stat-num { background: none; -webkit-text-fill-color: #1a6fff; }
html[data-tema="claro"] .stat-num.verde  { -webkit-text-fill-color: var(--verde); }
html[data-tema="claro"] .stat-num.amarelo{ -webkit-text-fill-color: var(--amarelo); }
html[data-tema="claro"] .input-wrapper { background: #ffffff; border-color: rgba(26,111,255,.2); }
html[data-tema="claro"] .input-tarefa  { color: var(--texto); }
html[data-tema="claro"] .input-tarefa::placeholder { color: var(--texto-fraco); }
html[data-tema="claro"] .select-prioridade,
html[data-tema="claro"] .input-data  { background: #ffffff; border-color: rgba(26,111,255,.2); color: var(--texto); }
html[data-tema="claro"] .filtro-btn  { background: #ffffff; color: var(--texto-suave); border-color: rgba(26,111,255,.2); }
html[data-tema="claro"] .filtro-btn.ativo { background: linear-gradient(135deg,#1a6fff,#00d4ff); color: #fff; border-color: transparent; }
html[data-tema="claro"] .tarefa-item { background: #ffffff; border-color: rgba(26,111,255,.16); box-shadow: 0 2px 10px rgba(13,27,42,.06); }
html[data-tema="claro"] .tarefa-item:hover { border-color: rgba(26,111,255,.35); }
html[data-tema="claro"] .tarefa-item.concluida { background: #f6f9ff; }
html[data-tema="claro"] .tarefa-texto { color: var(--texto); }
html[data-tema="claro"] .tarefa-check { border-color: rgba(26,111,255,.3); }
html[data-tema="claro"] .tarefa-btn   { border-color: rgba(26,111,255,.18); color: var(--texto-fraco); }
html[data-tema="claro"] .lista-vazia  { color: var(--texto-fraco); }
html[data-tema="claro"] .pagina-label { background: rgba(26,111,255,.1); border-color: rgba(26,111,255,.28); color: #1a6fff; }
html[data-tema="claro"] .glow-fundo   { opacity: .4; }
.botao-tema {
  margin-left: auto; width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 9px; border: 1px solid var(--borda);
  background: transparent; color: var(--texto-suave);
  font-size: 1.05rem; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all .25s;
}
.botao-tema:hover { border-color: var(--borda-h); transform: rotate(18deg); }
html[data-tema="claro"] .botao-tema { color: #e09000; border-color: rgba(224,144,0,.3); }
html.transicao-tema *, html.transicao-tema *::before, html.transicao-tema *::after {
  transition: background-color .35s ease, color .35s ease, border-color .35s ease, box-shadow .35s ease !important;
}