:root {
  --bg: #ffffff;
  --ink: #1a1a1a;
  --muted: #6b6b6b;
  --line: #e6e6e6;
  --accent: #2e7d32;      /* zen green */
  --accent-weak: #eaf3ea;
  --danger: #c62828;
  --topbar-h: 56px;
  --radius: 12px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ── fixed top bar (mirrors lucas.mat.br) ── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  padding-top: env(safe-area-inset-top);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
  z-index: 100;
}
.brand {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.mood {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 auto 0 8px;
  padding: 4px 12px;
  background: var(--accent-weak);
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
  min-width: 0;
}
.mood-label { white-space: nowrap; }
.mood-face { width: 26px; height: 26px; object-fit: contain; }
.mood strong { color: var(--ink); }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a, .nav button {
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background: none;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  text-decoration: none;
}
.nav a.active { background: var(--accent-weak); color: var(--accent); }
.nav a:hover, .nav button:hover { background: #f3f3f3; }

/* ── layout ── */
.app {
  max-width: 720px;
  margin: 0 auto;
  padding: calc(var(--topbar-h) + 24px) 16px 64px;
}
h1 { font-size: 22px; letter-spacing: -0.02em; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 24px 0 8px; }
.muted { color: var(--muted); }
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin: 12px 0;
}
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* ── mood hero (logged-in focus) ── */
.mood-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  padding: 28px 16px 24px;
  margin: 4px 0 12px;
  background: linear-gradient(180deg, var(--accent-weak), #fff);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.mood-hero img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.12));
}
.mood-hero .eyebrow {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.mood-hero .word {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
}
.mood-hero .caption {
  color: var(--muted);
  font-style: italic;
  max-width: 40ch;
}

/* ── faces / voting ── */
.faces { display: flex; gap: 6px; justify-content: space-between; margin: 12px 0; }
.face-btn {
  flex: 1;
  border: 2px solid transparent;
  border-radius: var(--radius);
  background: #fafafa;
  padding: 8px 4px;
  cursor: pointer;
  text-align: center;
  transition: transform .08s, border-color .08s;
}
.face-btn:hover { transform: translateY(-2px); }
.face-btn.sel { border-color: var(--accent); background: var(--accent-weak); }
.face-btn img { width: 100%; max-width: 72px; aspect-ratio: 1; object-fit: contain; }
.face-btn small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }

/* ── forms / buttons ── */
input, select, textarea {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 100%;
  background: #fff;
}
label { font-size: 13px; color: var(--muted); display: block; margin: 10px 0 4px; }
.btn {
  font: inherit;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.05); }
.btn.ghost { background: #f3f3f3; color: var(--ink); }
.btn.small { padding: 6px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: default; }

.kpi-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.kpi-grid .card { text-align: center; margin: 0; }
.kpi-grid .big { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }

.pill { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: #f0f0f0; }
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 999px;
  font-size: 14px; z-index: 200; opacity: 0; transition: opacity .2s;
}
.toast.show { opacity: 1; }
.center { text-align: center; }

@media (max-width: 520px) {
  .mood-label { display: none; }
  .face-btn small { font-size: 11px; }
}