/* =============================================================
   BASE TOKENS
   ============================================================= */
:root {
  /* dark palette (default) */
  --bg: #050505;
  --bg-elev: #0a0a0a;
  --bg-card: #0c0c0c;
  --bg-elev2: #161616;
  --line: #1f1f23;
  --line-soft: #161618;
  --text: #f4f4f5;
  --text-muted: #a1a1aa;
  --text-dim: #71717a;
  --text-soft: #52525b;
  --accent: #ea580c;
  --accent-soft: rgba(234, 88, 12, 0.12);
  --accent-ink: #fed7aa;
  --good: #22c55e;
  --good-soft: rgba(34, 197, 94, 0.12);
  --bad: #ef4444;
  --bad-soft: rgba(239, 68, 68, 0.12);
  --warn: #f59e0b;

  --radius: 4px;
  --radius-lg: 8px;
  --shadow: 0 1px 0 rgba(255,255,255,0.02) inset, 0 8px 24px rgba(0,0,0,0.4);

  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas, monospace;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Inter", sans-serif;

  color-scheme: dark;
}

/* light theme via OS preference AND explicit toggle [data-theme=light] */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #fafafa;
    --bg-elev: #ffffff;
    --bg-card: #ffffff;
    --bg-elev2: #f1f5f9;
    --line: #d4d4d8;
    --line-soft: #e4e4e7;
    --text: #18181b;
    --text-muted: #3f3f46;
    --text-dim: #52525b;
    --text-soft: #71717a;
    --accent: #c2410c;
    --accent-soft: rgba(194, 65, 12, 0.1);
    --accent-ink: #9a3412;
    --good-soft: rgba(22, 163, 74, 0.12);
    --bad-soft: rgba(220, 38, 38, 0.10);
    --shadow: 0 1px 0 rgba(255,255,255,0.6) inset, 0 8px 24px rgba(15,23,42,0.08);
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #fafafa;
  --bg-elev: #ffffff;
  --bg-card: #ffffff;
  --bg-elev2: #f1f5f9;
  --line: #d4d4d8;
  --line-soft: #e4e4e7;
  --text: #18181b;
  --text-muted: #3f3f46;
  --text-dim: #52525b;
  --text-soft: #71717a;
  --accent: #c2410c;
  --accent-soft: rgba(194, 65, 12, 0.1);
  --accent-ink: #9a3412;
  --good-soft: rgba(22, 163, 74, 0.12);
  --bad-soft: rgba(220, 38, 38, 0.10);
  --shadow: 0 1px 0 rgba(255,255,255,0.6) inset, 0 8px 24px rgba(15,23,42,0.08);
  color-scheme: light;
}

/* =============================================================
   RESET
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; }
html { -webkit-text-size-adjust: 100%; overfow-x: hidden; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  display: flex; flex-direction: column;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }
button { font: inherit; }
a { color: inherit; }

:focus { outline: none; }
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: var(--accent); color: #fff; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: #fff; padding: .6rem 1rem;
  z-index: 1000; border-radius: var(--radius);
}
.skip-link:focus { left: .75rem; top: .75rem; }

/* =============================================================
   LAYOUT GRID & BACKGROUND DECORATION
   ============================================================= */
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.05;
  pointer-events: none; z-index: 0;
}

.topbar, main, .footer { position: relative; z-index: 1; }

/* =============================================================
   TOPBAR
   ============================================================= */
.topbar {
  position: sticky; top: 0; z-index: 30;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.topbar__inner {
  max-width: 1100px; margin: 0 auto;
  padding: .75rem 1rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  text-decoration: none; color: inherit; font-weight: 700;
  letter-spacing: -.01em; font-size: 1rem;
}
.brand__mark {
  width: 12px; height: 12px; background: var(--accent); display: inline-block;
}
.topbar__nav { display: inline-flex; gap: .25rem; }
.topbar__link {
  background: none; border: 1px solid transparent;
  color: var(--text-muted); padding: .55rem .8rem;
  font-family: var(--font-mono); text-transform: uppercase;
  font-size: .72rem; letter-spacing: .12em;
  cursor: pointer; border-radius: var(--radius);
  text-decoration: none;
}
.topbar__link:hover { color: var(--text); border-color: var(--line); background: var(--bg-elev); }

/* =============================================================
   HERO
   ============================================================= */
.view { width: 100%; }
.hero {
  max-width: 1100px; margin: 0 auto;
  padding: 2.25rem 1rem 1.5rem;
  display: grid; gap: 1.5rem;
  grid-template-columns: 1fr;
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  font-family: var(--font-mono); text-transform: uppercase;
  font-size: .72rem; letter-spacing: .14em;
  color: var(--text-dim); margin: 0 0 1rem;
  display: flex; gap: .5rem; align-items: center;
}
.eyebrow--accent { color: var(--accent); }
.dot { width: 8px; height: 8px; background: var(--text-dim); display: inline-block; }
.dot--accent { background: var(--accent); }

.hero__title {
  font-size: clamp(1.85rem, 7vw, 3.4rem);
  line-height: 1.04; margin: 0 0 1rem;
  font-weight: 600; letter-spacing: -.02em;
}
.hero__title .muted { color: var(--text-soft); }
.hero__lead {
  font-size: 1rem; color: var(--text-muted);
  max-width: 38rem; margin: 0 0 1.5rem;
}
.hero__metrics {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); padding: 0;
  margin: 0; max-width: 32rem;
}
.metric {
  background: var(--bg-card); padding: .8rem 1rem;
  display: flex; flex-direction: column; gap: .15rem;
}
.metric dt {
  font-family: var(--font-mono); font-size: .62rem;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .12em;
}
.metric dd { margin: 0; font-weight: 600; font-size: .9rem; }

/* =============================================================
   CARDS / FORM
   ============================================================= */
.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: 1.25rem;
  position: relative;
  box-shadow: var(--shadow);
}
.card__head { margin-bottom: 1rem; }
.card__title {
  font-size: 1.25rem; margin: 0 0 .35rem; font-weight: 600;
  letter-spacing: -.01em;
}
.card__hint { color: var(--text-muted); margin: 0; font-size: .9rem; }

.form { display: grid; gap: 1rem; }

.field { display: grid; gap: .4rem; }
.field label {
  font-family: var(--font-mono); font-size: .72rem;
  text-transform: uppercase; letter-spacing: .12em;
  color: var(--text-muted); font-weight: 600;
}
.field input, .field textarea {
  font: inherit; width: 100%;
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .75rem .9rem; line-height: 1.5;
  min-height: 44px;
  resize: vertical;
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-soft); }
.field input:focus-visible, .field textarea:focus-visible { border-color: var(--accent); }
.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: var(--bad);
  background: var(--bad-soft);
}
.field__meta { display: flex; justify-content: space-between; align-items: flex-start; gap: .5rem; }
.field__error {
  margin: 0; color: var(--bad); font-size: .8rem;
  display: flex; align-items: center; gap: .35rem;
}
.counter { font-family: var(--font-mono); font-size: .7rem; color: var(--text-dim); margin: 0; }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--line);
  padding: .8rem 1.25rem; min-height: 44px;
  cursor: pointer; font-weight: 600;
  border-radius: var(--radius);
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { background: var(--bg-elev2); }
.btn:disabled { opacity: .55; cursor: wait; }
.btn--primary {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
.btn--primary:hover { background: #c2410c; border-color: #c2410c; }
.btn--ghost { background: transparent; }

.btn__spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,.45);
  border-top-color: #fff;
  border-radius: 50%;
  display: none;
  animation: spin .8s linear infinite;
}
.btn[data-loading="true"] .btn__spinner { display: inline-block; }
.btn[data-loading="true"] .btn__label { opacity: .7; }
@keyframes spin { to { transform: rotate(360deg); } }

/* STATUS / CONFIRM */
.status { margin: 0; min-height: 1.4em; font-size: .9rem; color: var(--text-muted); }
.status[data-kind="error"] { color: var(--bad); }
.status[data-kind="ok"] { color: var(--good); }

.confirm {
  display: grid; grid-template-columns: auto 1fr; gap: 1rem;
  padding: 1rem;
  background: var(--good-soft);
  border: 1px solid var(--good);
  border-radius: var(--radius);
  color: var(--text);
}
.confirm__icon {
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--good); color: #052e16;
  font-weight: 800; border-radius: 50%;
}
.confirm__title { margin: 0 0 .25rem; font-weight: 700; }
.confirm__text { margin: 0 0 .75rem; color: var(--text-muted); font-size: .9rem; }
.confirm__text code {
  font-family: var(--font-mono); font-size: .85em;
  background: var(--bg-elev); padding: .15rem .35rem; border-radius: 2px;
}

/* =============================================================
   BANDS (3-card / steps / trust)
   ============================================================= */
.band {
  max-width: 1100px; margin: 0 auto;
  padding: 2rem 1rem;
  border-bottom: 1px solid var(--line);
}
.band--alt { background: var(--bg-elev); border-top: 1px solid var(--line); }
.band__title {
  font-size: clamp(1.4rem, 4.5vw, 2rem); margin: 0 0 .75rem;
  font-weight: 600; letter-spacing: -.01em;
  line-height: 1.15;
}
.band__title .muted { color: var(--text-soft); }
.band__lead {
  color: var(--text-muted); max-width: 50rem;
  margin: 0 0 1.25rem;
}

.cards-3 {
  display: grid; gap: 1rem;
  grid-template-columns: 1fr;
  margin-top: .5rem;
}
.card2 {
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: 1.1rem;
  position: relative;
}
.card2 .num,
.steps .step__num {
  font-family: var(--font-mono);
  font-size: .72rem; color: var(--accent);
  letter-spacing: .12em; text-transform: uppercase;
  margin: 0 0 .5rem;
}
.card2 h3 { font-size: 1rem; margin: 0 0 .4rem; font-weight: 600; }
.card2 p { margin: 0; color: var(--text-muted); font-size: .9rem; }

.steps {
  list-style: none; padding: 0; margin: 1rem 0 0;
  display: grid; gap: 1rem;
  grid-template-columns: 1fr;
  position: relative;
}
.steps li {
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: 1rem;
}
.steps li h3 { margin: 0 0 .35rem; font-size: 1rem; }
.steps li p { margin: 0; color: var(--text-muted); font-size: .9rem; }

.badges {
  list-style: none; padding: 0; margin: 1rem 0 0;
  display: grid; gap: .5rem;
  grid-template-columns: 1fr;
}
.badges li {
  display: flex; align-items: center; gap: .6rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: .65rem .8rem; font-size: .9rem;
}
.badge-ok {
  background: var(--good); color: #052e16;
  width: 18px; height: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; font-size: .72rem; font-weight: 800; flex-shrink: 0;
}

/* =============================================================
   AUTH (panel)
   ============================================================= */
.auth {
  padding: 3rem 1rem; min-height: calc(100vh - 160px);
  display: flex; justify-content: center;
}
.auth__card { width: 100%; max-width: 28rem; }

.tabs {
  display: flex; gap: 1px; background: var(--line);
  border: 1px solid var(--line); padding: 0;
  margin: 1rem 0;
}
.tabs button {
  background: var(--bg-card); color: var(--text-muted);
  border: none; padding: .65rem .9rem;
  font-family: var(--font-mono); font-size: .72rem;
  text-transform: uppercase; letter-spacing: .12em;
  cursor: pointer; flex: 1;
}
.tabs button[aria-pressed="true"] {
  background: var(--accent); color: #fff;
}
.tabs button:hover:not([aria-pressed="true"]) { background: var(--bg-elev2); color: var(--text); }

.hint { color: var(--text-dim); font-size: .85rem; margin: 0; }

.recovery-code {
  display: block; font-family: var(--font-mono);
  background: var(--bg-elev); border: 1px solid var(--line);
  padding: 1rem; overflow-wrap: anywhere;
  margin: 1rem 0; font-size: 1.05rem;
  user-select: all;
}

/* =============================================================
   WORKSPACE / PANEL LIST
   ============================================================= */
.workspace {
  max-width: 1100px; margin: 0 auto;
  padding: 1.5rem 1rem;
}
.workspace__head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.workspace__title {
  font-size: clamp(1.4rem, 4.5vw, 2rem); margin: 0 0 .25rem; font-weight: 600;
  letter-spacing: -.01em;
}
.workspace__hint { color: var(--text-muted); margin: 0; font-size: .9rem; }
.workspace__actions { display: inline-flex; gap: .5rem; }

.workspace__stats {
  display: grid; gap: 1px; background: var(--line);
  border: 1px solid var(--line); margin-bottom: 1.25rem;
  grid-template-columns: 1fr;
}
.stats { background: var(--bg-card); padding: 1rem; }
.stats__label {
  font-family: var(--font-mono); font-size: .7rem;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .12em;
  margin: 0 0 .35rem;
}
.stats__value { font-size: 1.4rem; font-weight: 600; margin: 0; color: var(--text); }

.panel-status {
  background: var(--accent-soft); border: 1px solid var(--accent);
  padding: .65rem .85rem; margin-bottom: 1rem;
  font-size: .9rem; border-radius: var(--radius);
}

.panel-loading {
  display: flex; align-items: center; gap: .6rem;
  padding: 1rem; border: 1px dashed var(--line);
  color: var(--text-muted); font-family: var(--font-mono);
  font-size: .85rem;
}
.spin {
  width: 16px; height: 16px;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%; display: inline-block;
  animation: spin .8s linear infinite;
}

.panel-error {
  background: var(--bad-soft);
  border: 1px solid var(--bad);
  padding: 1rem; margin-bottom: 1rem;
  border-radius: var(--radius);
}
.panel-error h3 { margin: 0 0 .35rem; font-size: 1rem; color: var(--bad); }
.panel-error p { margin: 0 0 .75rem; color: var(--text-muted); font-size: .9rem; }

.empty {
  border: 1px dashed var(--line);
  padding: 2rem 1rem; text-align: center;
  color: var(--text-muted);
  background: var(--bg-card);
}
.empty__icon {
  font-size: 2rem; color: var(--text-soft); margin: 0 0 .35rem;
  font-family: var(--font-mono);
}
.empty h3 { margin: 0 0 .25rem; color: var(--text); font-size: 1.05rem; }
.empty p { margin: 0; font-size: .9rem; }

.fblist { list-style: none; padding: 0; margin: 0; display: grid; gap: .75rem; }
.fbitem {
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: 1rem;
  display: grid; gap: .45rem;
}
.fbitem__head {
  display: flex; gap: .5rem 1rem; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
}
.fbitem__name { font-weight: 600; margin: 0; font-size: 1rem; }
.fbitem__email { color: var(--text-muted); font-size: .85rem; margin: 0; word-break: break-all; }
.fbitem__date {
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .12em;
}
.fbitem__msg {
  margin: 0; white-space: pre-wrap;
  word-wrap: break-word; overflow-wrap: anywhere;
  color: var(--text); font-size: .95rem; line-height: 1.5;
}
.fbitem__actions { display: flex; gap: .5rem; justify-content: flex-end; }
.fbitem__delete {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--bad);
  font-family: var(--font-mono); font-size: .72rem;
  text-transform: uppercase; letter-spacing: .12em;
  padding: .5rem .75rem; min-height: 36px;
  cursor: pointer; border-radius: var(--radius);
}
.fbitem__delete:hover { background: var(--bad-soft); border-color: var(--bad); }

.pagination {
  display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; justify-content: space-between;
  margin: 1.25rem 0 0; padding: 1rem;
  background: var(--bg-card); border: 1px solid var(--line);
}
.pagination__info {
  font-family: var(--font-mono); font-size: .78rem;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .12em;
}
.pagination__btns { display: inline-flex; gap: .35rem; }
.pagination button {
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--line); padding: .5rem .75rem;
  min-height: 36px; cursor: pointer; font-size: .85rem;
  border-radius: var(--radius);
}
.pagination button:hover:not([disabled]) { background: var(--bg-elev2); border-color: var(--accent); }
.pagination button[disabled] { opacity: .4; cursor: not-allowed; }
.pagination button[aria-current="page"] { background: var(--accent); color: #fff; border-color: var(--accent); }

/* =============================================================
   FOOTER
   ============================================================= */
.footer {
  border-top: 1px solid var(--line);
  padding: 1.25rem 1rem;
  text-align: center;
  color: var(--text-muted); font-size: .85rem;
}
.footer__small { color: var(--text-dim); font-size: .75rem; margin: .25rem 0 0; }

/* =============================================================
   RESPONSIVE — 390 px target (deve caber sem rolagem horizontal)
   ============================================================= */
@media (min-width: 720px) {
  .hero { grid-template-columns: 1.1fr 1fr; padding: 3rem 1.5rem; }
  .cards-3 { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .badges { grid-template-columns: 1fr 1fr; }
  .workspace__stats { grid-template-columns: repeat(3, 1fr); }
  .hero__metrics { grid-template-columns: repeat(3, 1fr); }
}

/* Container safety: nunca permitir overflow horizontal */
html, body { overflow-x: hidden; }
img, svg, video, canvas, iframe { max-width: 100%; }
input, textarea, select, button { max-width: 100%; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}