/* ===== Base / tema ===== */
:root {
  color-scheme: dark;
  --bg:        #0f1020;
  --bg-soft:   #16172b;
  --card:      #1a1b2e;
  --card-2:    #20223a;
  --border:    #2a2c4a;
  --text:      #ececf5;
  --muted:     #9a9ab5;
  --accent:    #6366f1;
  --accent-2:  #8b5cf6;
  --green:     #22c55e;
  --red:       #ef4444;
  --radius:    16px;
  --nav-h:     64px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body { margin: 0; padding: 0; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overscroll-behavior-y: none;
}

.hidden { display: none !important; }
.muted  { color: var(--muted); }
.center { text-align: center; }

button { font-family: inherit; cursor: pointer; }

/* ===== Botões ===== */
.btn-primary {
  border: 0; border-radius: 12px; padding: 13px 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 1rem; font-weight: 600; width: 100%;
}
.btn-primary:active { transform: scale(.985); }
.btn-ghost {
  border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px;
  background: transparent; color: var(--text); font-size: .95rem;
}
.btn-danger {
  border: 1px solid rgba(239,68,68,.4); border-radius: 12px; padding: 12px 16px;
  background: rgba(239,68,68,.1); color: #fca5a5; font-size: .95rem;
}
.btn-add {
  width: 100%; border: 1px dashed var(--border); border-radius: 14px;
  padding: 16px; background: var(--card); color: var(--accent);
  font-size: 1rem; font-weight: 600; margin-bottom: 16px;
}
.icon-btn {
  width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); font-size: 1.4rem; line-height: 1;
}
.chip {
  border: 1px solid var(--border); background: var(--card); color: var(--muted);
  border-radius: 999px; padding: 7px 14px; font-size: .82rem; font-weight: 600;
}
.error-msg { color: #fca5a5; font-size: .88rem; min-height: 1.1em; margin: 8px 0 0; text-align: center; }

/* ===== Login ===== */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
  width: 100%; max-width: 380px; background: var(--card);
  border: 1px solid var(--border); border-radius: 22px; padding: 32px 26px;
  display: flex; flex-direction: column; gap: 4px; text-align: center;
  box-shadow: 0 24px 70px rgba(0,0,0,.45);
}
.login-logo {
  width: 64px; height: 64px; margin: 0 auto 8px; border-radius: 18px;
  display: grid; place-items: center; font-size: 2rem; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.login-card h1 { margin: 4px 0 0; font-size: 1.5rem; }
.login-card input {
  margin-top: 18px; padding: 14px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 1rem;
}
.login-card .btn-primary { margin-top: 14px; }

/* ===== Layout do app ===== */
.app { max-width: 560px; margin: 0 auto; padding: 0 16px calc(var(--nav-h) + 24px); }

.topbar {
  position: sticky; top: 0; z-index: 10; background: var(--bg);
  display: flex; align-items: center; gap: 8px;
  padding: 18px 0 12px;
}
.topbar > div { flex: 1; }
.topbar-date  { margin: 0; font-size: .78rem; color: var(--muted); }
.topbar-title { margin: 2px 0 0; font-size: 1.5rem; }

.section-title { font-size: 1rem; margin: 22px 0 12px; color: var(--text); }

/* ===== Anel de performance ===== */
.ring-card {
  position: relative; display: grid; place-items: center;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; margin-bottom: 18px;
}
.ring { width: 168px; height: 168px; transform: rotate(-90deg); }
.ring-bg   { fill: none; stroke: var(--card-2); stroke-width: 12; }
.ring-fill {
  fill: none; stroke: url(#g); stroke-width: 12; stroke-linecap: round;
  stroke: var(--accent);
  stroke-dasharray: 326.7; stroke-dashoffset: 326.7;
  transition: stroke-dashoffset .6s ease, stroke .3s;
}
.ring-center {
  position: absolute; inset: 0; display: grid; place-items: center; align-content: center;
}
.ring-pct { font-size: 2.4rem; font-weight: 700; line-height: 1; }
.ring-sub { font-size: .85rem; color: var(--muted); margin-top: 4px; }

/* ===== Lista de hábitos (aba Hoje) ===== */
.habit-list { display: flex; flex-direction: column; gap: 10px; }
.habit {
  display: flex; align-items: center; gap: 14px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 14px;
}
.habit-emoji {
  width: 44px; height: 44px; flex: 0 0 44px; border-radius: 12px;
  display: grid; place-items: center; font-size: 1.4rem;
  background: var(--card-2);
}
.habit-info { flex: 1; min-width: 0; }
.habit-name { font-weight: 600; font-size: 1rem; }
.habit-sub  { font-size: .8rem; color: var(--muted); margin-top: 2px; }

/* progresso linear nos hábitos com meta */
.habit-bar { height: 6px; border-radius: 999px; background: var(--card-2); margin-top: 8px; overflow: hidden; }
.habit-bar > i { display: block; height: 100%; border-radius: 999px; transition: width .35s; }

/* botão de check (boolean) */
.check {
  width: 32px; height: 32px; flex: 0 0 32px; border-radius: 50%;
  border: 2px solid var(--border); background: transparent; color: #fff;
  display: grid; place-items: center; font-size: 1rem; transition: all .2s;
}
.check.done { border-color: transparent; }

/* stepper (quantity) */
.stepper { display: flex; align-items: center; gap: 8px; }
.stepper button {
  width: 32px; height: 32px; border-radius: 9px; border: 1px solid var(--border);
  background: var(--card-2); color: var(--text); font-size: 1.2rem; line-height: 1;
}
.stepper input {
  width: 52px; text-align: center; padding: 7px 4px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: .95rem;
}

.empty { text-align: center; color: var(--muted); margin-top: 40px; line-height: 1.6; }

/* ===== Estatísticas ===== */
.period-custom { display: flex; gap: 10px; margin: 4px 0 2px; }
.period-custom label {
  flex: 1; display: flex; align-items: center; gap: 8px; font-size: .78rem; color: var(--muted);
  background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px;
}
.period-custom input[type=date] {
  flex: 1; min-width: 0; background: transparent; border: 0; color: var(--text);
  font-size: .9rem; color-scheme: dark; font-family: inherit;
}

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.range-sub { font-size: .74rem; color: var(--muted); white-space: nowrap; }

.chart-labels { display: flex; gap: 3px; margin-top: 5px; }
.chart-labels span {
  flex: 1; min-width: 0; text-align: center; font-size: .6rem; color: var(--muted);
  overflow: visible; white-space: nowrap;
}

.stats-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 12px; }
.stat-box {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 16px 8px; text-align: center;
}
.stat-num { display: block; font-size: 1.5rem; font-weight: 700; }
.stat-label { display: block; font-size: .72rem; color: var(--muted); margin-top: 4px; }

.chart {
  display: flex; align-items: flex-end; gap: 3px; height: 130px;
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px 12px;
}
.bar { flex: 1; background: var(--card-2); border-radius: 4px 4px 2px 2px; min-height: 4px;
  transition: height .4s; position: relative; }
.bar > i { position: absolute; inset: 0; border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent)); }

.habit-stats { display: flex; flex-direction: column; gap: 10px; }
.hstat {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 12px 14px;
}
.hstat .habit-emoji { width: 38px; height: 38px; flex-basis: 38px; font-size: 1.2rem; }
.hstat-info { flex: 1; }
.hstat-name { font-weight: 600; font-size: .95rem; }
.hstat-meta { font-size: .78rem; color: var(--muted); margin-top: 2px; }
.hstat-pct { font-size: 1.1rem; font-weight: 700; }

/* ===== Gerenciar hábitos ===== */
.manage-list { display: flex; flex-direction: column; gap: 10px; }
.manage-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 12px 14px;
}
.manage-item.inactive { opacity: .5; }
.manage-item .habit-emoji { width: 40px; height: 40px; flex-basis: 40px; }
.manage-item .grow { flex: 1; }
.manage-item .edit { color: var(--muted); font-size: 1.3rem; background: none; border: 0; }

/* ===== Configurações ===== */
.settings-card { background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 16px; margin-top: 8px; }
.settings-card input {
  width: 100%; margin-bottom: 10px; padding: 12px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 1rem;
}
#tab-settings .btn-ghost { width: 100%; margin: 16px 0; }

/* ===== Navegação inferior ===== */
.bottom-nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  display: flex; max-width: 560px; margin: 0 auto;
  background: var(--bg-soft); border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
}
.nav-btn {
  flex: 1; border: 0; background: none; color: var(--muted);
  font-size: .7rem; padding: 9px 0; height: var(--nav-h);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
}
.nav-btn span { font-size: 1.3rem; filter: grayscale(.4); opacity: .8; }
.nav-btn.active { color: var(--accent); }
.nav-btn.active span { filter: none; opacity: 1; }

/* ===== Modal ===== */
.modal {
  position: fixed; inset: 0; z-index: 40; background: rgba(5,5,15,.7);
  display: flex; align-items: flex-end; justify-content: center;
  animation: fade .15s ease;
}
@keyframes fade { from { opacity: 0; } }
.modal-card {
  width: 100%; max-width: 560px; background: var(--card);
  border-radius: 22px 22px 0 0; border-top: 1px solid var(--border);
  padding: 22px 18px calc(22px + env(safe-area-inset-bottom));
  max-height: 92vh; overflow-y: auto;
  animation: slideup .22s ease;
}
@keyframes slideup { from { transform: translateY(40px); } }
.modal-card h2 { margin: 0 0 16px; font-size: 1.25rem; }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: .8rem; color: var(--muted); margin-bottom: 6px; }
.field input {
  width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 1rem;
}
.field-row { display: flex; gap: 12px; }
.field.grow { flex: 1; }
.emoji-field input { text-align: center; font-size: 1.5rem; width: 64px; }

.seg { display: flex; gap: 6px; background: var(--bg); padding: 4px; border-radius: 12px; border: 1px solid var(--border); }
.seg-btn { flex: 1; border: 0; background: none; color: var(--muted); padding: 10px; border-radius: 9px; font-size: .85rem; font-weight: 600; }
.seg-btn.active { background: var(--accent); color: #fff; }

.switch-row { display: flex; align-items: center; gap: 10px; font-size: .92rem; color: var(--text); cursor: pointer; }
.switch-row input { width: 20px; height: 20px; accent-color: var(--accent); }

.color-picker { display: flex; gap: 10px; flex-wrap: wrap; }
.color-dot { width: 34px; height: 34px; border-radius: 50%; border: 3px solid transparent; cursor: pointer; }
.color-dot.sel { border-color: #fff; }

.modal-actions { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.modal-actions .spacer { flex: 1; }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: calc(var(--nav-h) + 16px); left: 50%; transform: translateX(-50%);
  background: var(--card-2); color: var(--text); border: 1px solid var(--border);
  padding: 11px 18px; border-radius: 999px; font-size: .88rem; z-index: 60;
  box-shadow: 0 10px 30px rgba(0,0,0,.4); animation: fade .15s;
}