/* ══ DigiTrainer Matrix v3.0.0 ══════════════════════ */

/* ── Root ────────────────────────────────────────── */
#dgt-root {
  width: 100%;
  min-height: calc(100vh - 80px);
  font-family: var(--mx-mono);
  color: var(--mx-text);
  background: var(--mx-void);
}

/* ── App shell ───────────────────────────────────── */
#dgt-app {
  display: grid;
  grid-template-rows: auto auto auto 1fr;
  min-height: calc(100vh - 80px);
}

/* ── Header DigiTrainer ──────────────────────────── */
.dgt-header {
  background: var(--mx-deep);
  border-bottom: 1px solid var(--mx-border);
  padding: .85rem clamp(1rem,3vw,2rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  position: sticky;
  top: 64px;
  z-index: 50;
  box-shadow: 0 2px 16px rgba(0,0,0,.5);
}
.dgt-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
}
.dgt-logo-text {
  font-family: var(--mx-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--mx-green);
  letter-spacing: .06em;
  text-shadow: 0 0 12px var(--mx-green3);
}
.dgt-logo-sub {
  font-size: .62rem;
  color: var(--mx-muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.dgt-header-right {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.dgt-sound-btn {
  font-family: var(--mx-mono);
  font-size: .7rem;
  padding: .3rem .75rem;
  border-radius: 99px;
  border: 1px solid var(--mx-border);
  background: transparent;
  color: var(--mx-muted);
  cursor: pointer;
  letter-spacing: .08em;
  transition: all .2s;
}
.dgt-sound-btn.on  { border-color: var(--mx-green4); color: var(--mx-green3); }
.dgt-sound-btn:hover { border-color: var(--mx-green3); color: var(--mx-green); }

.dgt-user {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  color: var(--mx-text2);
  cursor: pointer;
}
.dgt-user-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--mx-green3);
  object-fit: cover;
  box-shadow: 0 0 6px var(--mx-glow);
}
.dgt-user-initials {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mx-green4), var(--mx-green3));
  display: flex; align-items: center; justify-content: center;
  font-size: .65rem; font-weight: 800; color: var(--mx-black);
  border: 1px solid var(--mx-green3);
  box-shadow: 0 0 6px var(--mx-glow);
}

/* ── Tabs ────────────────────────────────────────── */
.dgt-tabs {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  background: var(--mx-surface);
  border-bottom: 1px solid var(--mx-border);
}
.dgt-tabs::-webkit-scrollbar { display: none; }
.dgt-tab {
  font-family: var(--mx-mono);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .75rem 1.1rem;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--mx-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all .2s;
  flex-shrink: 0;
}
.dgt-tab:hover { color: var(--mx-text2); }
.dgt-tab.active {
  color: var(--mx-green);
  border-bottom-color: var(--mx-green);
  background: rgba(0,255,65,.03);
  text-shadow: 0 0 8px var(--mx-green3);
}

/* ── HUD ─────────────────────────────────────────── */
.dgt-hud {
  display: flex;
  gap: .5rem;
  padding: .75rem clamp(1rem,3vw,2rem);
  background: var(--mx-deep);
  border-bottom: 1px solid var(--mx-border2);
  flex-wrap: wrap;
}
.dgt-hud-item {
  flex: 1;
  min-width: 68px;
  background: var(--mx-card);
  border: 1px solid var(--mx-border2);
  border-radius: var(--mx-r);
  padding: .5rem .7rem;
  text-align: center;
}
.dgt-hud-val {
  font-family: var(--mx-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--mx-green);
  line-height: 1;
  text-shadow: 0 0 10px var(--mx-green4);
}
.dgt-hud-val.streak-active { color: var(--mx-yellow); text-shadow: 0 0 10px rgba(204,255,0,.4); }
.dgt-hud-lbl {
  font-size: .55rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--mx-muted);
  margin-top: .2rem;
}

/* Barra de progresso */
.dgt-prog-wrap {
  height: 2px;
  background: var(--mx-border2);
  overflow: hidden;
}
.dgt-prog-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--mx-green3), var(--mx-green));
  transition: width .1s linear;
  box-shadow: 0 0 8px var(--mx-green3);
}

/* ── Panels ──────────────────────────────────────── */
.dgt-panels { flex: 1; }
.dgt-panel { display: none; padding: clamp(1rem,3vw,1.75rem) clamp(1rem,3vw,2rem); }
.dgt-panel.active { display: block; animation: fadeIn .2s ease; }

.dgt-section-title {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--mx-green3);
  margin-bottom: .85rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--mx-border2);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.dgt-section-sub {
  font-size: .78rem;
  color: var(--mx-muted);
  margin-bottom: 1.1rem;
  line-height: 1.6;
}

/* ── Área de Treino ──────────────────────────────── */
.dgt-train-area {
  max-width: 100%;
}

/* Display do texto */
#dgt-display {
  font-family: var(--mx-mono);
  font-size: clamp(.82rem, 2vw, 1rem);
  line-height: 2;
  padding: 1.1rem 1.25rem;
  min-height: 100px;
  background: var(--mx-deep);
  border: 1px solid var(--mx-border);
  border-radius: var(--mx-r2);
  margin-bottom: .75rem;
  cursor: text;
  user-select: none;
  word-break: break-word;
  white-space: pre-wrap;
  transition: border-color .2s;
}
#dgt-display:focus-within,
#dgt-display.focused { border-color: var(--mx-green4); box-shadow: 0 0 0 2px rgba(0,255,65,.06), 0 0 20px rgba(0,255,65,.04); }

.ch-ok   { color: var(--mx-green); }
.ch-err  { color: var(--mx-red); text-decoration: underline; text-decoration-color: rgba(255,65,65,.5); }
.ch-cur  { border-left: 2px solid var(--mx-green); animation: blink .75s step-end infinite; box-shadow: 0 0 6px var(--mx-green3); }

/* Input invisível */
#dgt-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px;
}

/* Controles */
.dgt-controls {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-top: .75rem;
  align-items: center;
}
.dgt-shortcut-hint {
  font-size: .65rem;
  color: var(--mx-muted);
  margin-left: auto;
}
.dgt-shortcut-hint kbd {
  background: var(--mx-card);
  border: 1px solid var(--mx-border);
  border-radius: 3px;
  padding: .1rem .4rem;
  font-family: var(--mx-mono);
  font-size: .62rem;
  color: var(--mx-green3);
}

/* ── Resultado ───────────────────────────────────── */
.dgt-result {
  display: none;
  text-align: center;
  padding: 2rem 1rem;
  animation: fadeIn .3s ease;
}
.dgt-result.show { display: block; }
.dgt-result-wpm {
  font-family: var(--mx-display);
  font-size: clamp(4rem, 12vw, 7rem);
  color: var(--mx-green);
  line-height: 1;
  text-shadow: 0 0 40px var(--mx-green3), 0 0 80px var(--mx-green4);
  letter-spacing: .05em;
}
.dgt-result-label {
  font-family: var(--mx-mono);
  font-size: .62rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--mx-muted);
  margin-bottom: 1.5rem;
}
.dgt-result-grid {
  display: inline-grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .6rem;
  margin: 1.25rem auto;
  max-width: 380px;
}
.dgt-result-item {
  background: var(--mx-card);
  border: 1px solid var(--mx-border);
  border-radius: var(--mx-r);
  padding: .75rem;
}
.dgt-result-item-val { font-family: var(--mx-mono); font-size: 1.2rem; font-weight: 700; color: var(--mx-text); }
.dgt-result-item-lbl { font-size: .58rem; text-transform: uppercase; letter-spacing: .1em; color: var(--mx-muted); margin-top: .2rem; }

/* Conquistas no resultado */
.dgt-result-badges {
  display: flex;
  gap: .5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: .85rem 0;
}
.dgt-result-badge {
  background: rgba(204,255,0,.08);
  border: 1px solid rgba(204,255,0,.25);
  border-radius: 99px;
  padding: .25rem .85rem;
  font-size: .7rem;
  color: var(--mx-yellow);
  animation: fadeIn .3s ease both;
}

/* ── Lições ──────────────────────────────────────── */
.dgt-lessons-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(min(200px,100%),1fr)); gap: .6rem; }
.dgt-lesson-card {
  background: var(--mx-card);
  border: 1px solid var(--mx-border2);
  border-radius: var(--mx-r);
  padding: .9rem 1rem;
  cursor: pointer;
  transition: all .2s;
  position: relative;
  overflow: hidden;
}
.dgt-lesson-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 100%;
  border-radius: 99px 0 0 99px;
}
.dgt-lesson-card.beginner::before     { background: var(--mx-green); box-shadow: 0 0 6px var(--mx-green3); }
.dgt-lesson-card.intermediate::before { background: var(--mx-yellow); }
.dgt-lesson-card.advanced::before     { background: var(--mx-red); }
.dgt-lesson-card:hover { border-color: var(--mx-green3); transform: translateY(-2px); box-shadow: 0 0 16px var(--mx-glow2); }
.dgt-lesson-title { font-size: .85rem; font-weight: 700; color: var(--mx-white); margin-bottom: .25rem; }
.dgt-lesson-desc  { font-size: .7rem; color: var(--mx-muted); line-height: 1.4; }
.dgt-lesson-meta  { font-size: .62rem; color: var(--mx-muted); margin-top: .4rem; }

/* ── Temáticos ───────────────────────────────────── */
.dgt-thematic-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(min(190px,100%),1fr)); gap: .6rem; }
.dgt-thematic-card {
  background: var(--mx-card);
  border: 1px solid var(--mx-border2);
  border-radius: var(--mx-r);
  padding: .9rem;
  cursor: pointer;
  transition: all .2s;
}
.dgt-thematic-card:hover { border-color: var(--mx-green4); transform: translateY(-2px); box-shadow: 0 0 20px var(--mx-glow2); }
.dgt-thematic-icon  { font-size: 1.4rem; margin-bottom: .4rem; }
.dgt-thematic-title { font-size: .82rem; font-weight: 700; color: var(--mx-white); margin-bottom: .25rem; }
.dgt-thematic-prev  { font-size: .68rem; color: var(--mx-muted); line-height: 1.4; }

/* Cat tabs */
.dgt-cat-tabs { display: flex; gap: .35rem; flex-wrap: wrap; margin-bottom: .85rem; }
.dgt-cat-tab {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  padding: .3rem .75rem;
  border-radius: 99px;
  border: 1px solid var(--mx-border);
  background: transparent;
  color: var(--mx-muted);
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.dgt-cat-tab:hover { border-color: var(--mx-green3); color: var(--mx-green3); }
.dgt-cat-tab.active { background: var(--mx-green); border-color: var(--mx-green); color: var(--mx-black); }

/* ── Texto Personalizado ─────────────────────────── */
.dgt-custom-area textarea {
  width: 100%;
  min-height: 110px;
  font-family: var(--mx-mono);
  font-size: .85rem;
  background: var(--mx-deep);
  border: 1px solid var(--mx-border);
  border-radius: var(--mx-r);
  color: var(--mx-text);
  padding: .75rem 1rem;
  resize: vertical;
  outline: none;
  margin-bottom: .75rem;
  line-height: 1.6;
  transition: border-color .2s;
}
.dgt-custom-area textarea:focus { border-color: var(--mx-green3); }
.dgt-custom-area textarea::placeholder { color: var(--mx-muted); }

/* ── Estatísticas ────────────────────────────────── */
.dgt-stats-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(120px,1fr)); gap: .6rem; margin-bottom: 1.25rem; }
.dgt-stat-card {
  background: var(--mx-card);
  border: 1px solid var(--mx-border2);
  border-radius: var(--mx-r);
  padding: .85rem;
  text-align: center;
}
.dgt-stat-val { font-family: var(--mx-mono); font-size: 1.5rem; font-weight: 700; color: var(--mx-green); text-shadow: 0 0 10px var(--mx-green4); line-height: 1; }
.dgt-stat-lbl { font-size: .58rem; text-transform: uppercase; letter-spacing: .1em; color: var(--mx-muted); margin-top: .3rem; }

/* Chart */
.dgt-chart-wrap {
  background: var(--mx-card);
  border: 1px solid var(--mx-border2);
  border-radius: var(--mx-r);
  padding: 1rem;
  margin-bottom: .85rem;
}
.dgt-chart-title { font-size: .62rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--mx-muted); margin-bottom: .6rem; }
.dgt-bars { display: flex; align-items: flex-end; gap: 3px; height: 64px; }
.dgt-bar-col { display: flex; flex-direction: column; align-items: center; gap: 2px; flex: 1; }
.dgt-bar { width: 100%; background: linear-gradient(180deg, var(--mx-green), var(--mx-green4)); border-radius: 2px 2px 0 0; min-height: 3px; box-shadow: 0 0 6px var(--mx-green4); }
.dgt-bar-lbl { font-size: .48rem; color: var(--mx-muted); white-space: nowrap; }

/* ── Conquistas ──────────────────────────────────── */
.dgt-achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill,minmax(125px,1fr));
  gap: .55rem;
}
.dgt-ach-card {
  background: var(--mx-card);
  border: 1px solid var(--mx-border2);
  border-radius: var(--mx-r);
  padding: .75rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all .25s;
}
.dgt-ach-card.unlocked {
  border-color: rgba(204,255,0,.3);
  background: linear-gradient(135deg,rgba(204,255,0,.06),var(--mx-card));
  box-shadow: 0 0 16px rgba(204,255,0,.08);
}
.dgt-ach-card.locked { opacity: .35; }
.dgt-ach-icon { font-size: 1.5rem; margin-bottom: .35rem; display: block; }
.dgt-ach-card.locked .dgt-ach-icon { filter: grayscale(1); }
.dgt-ach-name { font-size: .68rem; font-weight: 700; color: var(--mx-white); margin-bottom: .2rem; }
.dgt-ach-card.locked .dgt-ach-name { color: var(--mx-muted); }
.dgt-ach-desc { font-size: .6rem; color: var(--mx-muted); line-height: 1.35; }
.dgt-ach-new {
  position: absolute;
  top: .3rem; right: .35rem;
  background: var(--mx-yellow);
  color: var(--mx-black);
  font-size: .5rem;
  font-weight: 900;
  padding: .1rem .3rem;
  border-radius: 99px;
  letter-spacing: .05em;
}

/* ── Heatmap ─────────────────────────────────────── */
.dgt-heatmap-wrap { overflow-x: auto; padding-bottom: .5rem; }
.dgt-kb-row { display: flex; gap: 3px; justify-content: center; margin-bottom: 3px; }
.dgt-kb-key {
  width: 32px; height: 32px;
  border-radius: 5px;
  border: 1px solid var(--mx-border);
  background: var(--mx-deep);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mx-mono);
  font-size: .58rem;
  font-weight: 700;
  color: var(--mx-muted);
  transition: all .3s;
  flex-shrink: 0;
  cursor: default;
}
.dgt-kb-key.heat-0 { color: var(--mx-muted); background: var(--mx-deep); }
.dgt-kb-key.heat-1 { background: rgba(0,255,65,.1); border-color:rgba(0,255,65,.2); color:var(--mx-green3); }
.dgt-kb-key.heat-2 { background: rgba(0,255,65,.2); border-color:rgba(0,255,65,.35); color:var(--mx-green2); }
.dgt-kb-key.heat-3 { background: rgba(0,255,65,.35); border-color:var(--mx-green3); color:var(--mx-green); box-shadow:0 0 8px var(--mx-green4); }
.dgt-kb-key.heat-err { background: rgba(255,65,65,.2); border-color:rgba(255,65,65,.35); color:var(--mx-red); }
.dgt-kb-key.wide    { width: 50px; }
.dgt-kb-key.wider   { width: 66px; }
.dgt-kb-key.widest  { width: 110px; }

/* ── IA ──────────────────────────────────────────── */
.dgt-ai-controls { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; margin-top: .75rem; }
.dgt-ai-preview {
  font-family: var(--mx-mono);
  font-size: .82rem;
  color: var(--mx-text2);
  line-height: 1.7;
  padding: .85rem 1rem;
  background: var(--mx-deep);
  border: 1px solid var(--mx-border);
  border-radius: var(--mx-r);
  min-height: 70px;
  margin: .75rem 0;
  transition: border-color .2s;
}
.dgt-ai-preview.loaded { border-color: var(--mx-green4); color: var(--mx-text); }
.dgt-ai-loading {
  display: none;
  align-items: center;
  gap: .4rem;
  font-size: .72rem;
  color: var(--mx-green3);
}
.dgt-ai-loading.show { display: flex; }
.dgt-ai-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--mx-green);
  animation: pulse-dot 1.2s ease-in-out infinite;
}

/* ── Modal login ─────────────────────────────────── */
.dgt-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.88);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.dgt-modal-overlay.hidden { display: none; }
.dgt-modal {
  background: var(--mx-surface);
  border: 1px solid var(--mx-border);
  border-radius: var(--mx-r3);
  padding: 2rem;
  max-width: 360px;
  width: 100%;
  text-align: center;
  box-shadow: 0 0 60px var(--mx-glow2);
  position: relative;
}
.dgt-modal::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg,transparent,var(--mx-green3),transparent);
  border-radius: var(--mx-r3) var(--mx-r3) 0 0;
}
.dgt-modal h2 { font-family: var(--mx-display); font-size: 1.6rem; color: var(--mx-white); margin-bottom: .4rem; }
.dgt-modal p  { font-size: .8rem; color: var(--mx-muted); margin-bottom: 1.25rem; line-height: 1.6; }
.dgt-modal-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  width: 100%;
  padding: .75rem 1rem;
  border-radius: var(--mx-r);
  border: 1px solid var(--mx-border);
  background: var(--mx-card);
  color: var(--mx-text2);
  font-family: var(--mx-mono);
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: .5rem;
  text-decoration: none;
  transition: all .2s;
}
.dgt-modal-btn.primary {
  background: var(--mx-green);
  border-color: var(--mx-green);
  color: var(--mx-black);
}
.dgt-modal-btn.primary:hover { background: var(--mx-white); border-color: var(--mx-white); }
.dgt-modal-btn:not(.primary):hover { border-color: var(--mx-green3); color: var(--mx-green); }
.dgt-modal-skip {
  display: block;
  margin-top: .6rem;
  font-size: .72rem;
  color: var(--mx-muted);
  cursor: pointer;
  transition: color .2s;
}
.dgt-modal-skip:hover { color: var(--mx-text2); }

/* ── Toast ───────────────────────────────────────── */
.dgt-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--mx-card);
  border: 1px solid var(--mx-border);
  color: var(--mx-text);
  padding: .55rem 1.25rem;
  border-radius: 99px;
  font-family: var(--mx-mono);
  font-size: .75rem;
  z-index: 10000;
  box-shadow: 0 4px 20px rgba(0,0,0,.6);
  animation: fadeIn .25s ease;
  white-space: nowrap;
  pointer-events: none;
}
.dgt-toast.achievement {
  border-color: rgba(204,255,0,.4);
  background: rgba(204,255,0,.08);
  color: var(--mx-yellow);
  box-shadow: 0 4px 20px rgba(204,255,0,.15);
}

/* ── Select / Input forms ────────────────────────── */
.dgt-select {
  font-family: var(--mx-mono);
  font-size: .78rem;
  background: var(--mx-deep);
  border: 1px solid var(--mx-border);
  border-radius: var(--mx-r);
  color: var(--mx-text);
  padding: .4rem .7rem;
  cursor: pointer;
  outline: none;
  transition: border-color .2s;
}
.dgt-select:focus { border-color: var(--mx-green3); }

/* ── Responsivo ──────────────────────────────────── */
@media (max-width: 600px) {
  .dgt-hud { gap: .3rem; padding: .5rem .75rem; }
  .dgt-hud-val { font-size: 1rem; }
  .dgt-panel { padding: .85rem; }
  .dgt-header { padding: .65rem .85rem; }
  .dgt-result-wpm { font-size: clamp(3rem, 15vw, 5rem); }
  .dgt-result-grid { grid-template-columns: repeat(3,1fr); }
  .dgt-kb-key { width: 26px; height: 26px; font-size: .5rem; }
  .dgt-kb-key.wide { width: 38px; }
  .dgt-kb-key.wider { width: 52px; }
  .dgt-kb-key.widest { width: 88px; }
  .dgt-achievements-grid { grid-template-columns: repeat(3,1fr); }
}