/* =============================================
   LexGymTracker — Dark Theme Stylesheet
   ============================================= */

:root {
  --bg:         #1a1a2e;
  --surface:    #16213e;
  --accent:     #e94560;
  --text:       #eaeaea;
  --text-sec:   #a0a0b0;
  --badge-bg:   #0f3460;
  --carga:      #e9a845;
  --rpe:        #4aa3df;
  --border:     #2a2a4a;
  --radius-card: 8px;
  --radius-badge: 4px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Header ── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.header-nav {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-badge);
  color: var(--text-sec);
  font-size: 0.9rem;
  transition: color 0.15s, background 0.15s;
}

.nav-link:hover {
  color: var(--text);
  background: var(--border);
}

.nav-link.nav-active {
  color: var(--text);
  background: var(--badge-bg);
}

/* ── Main content ── */
.app-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

/* ── Loading / error ── */
.loading {
  color: var(--text-sec);
  text-align: center;
  padding: 48px 0;
}

.error-msg {
  color: var(--accent);
  background: rgba(233, 69, 96, 0.12);
  border: 1px solid rgba(233, 69, 96, 0.3);
  border-radius: var(--radius-card);
  padding: 12px 16px;
  margin: 16px 0;
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 64px 0;
}

.empty-state p {
  color: var(--text-sec);
  margin-bottom: 20px;
  font-size: 1rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-badge);
  cursor: pointer;
  font-size: 0.9rem;
  font-family: inherit;
  transition: opacity 0.15s;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.85;
}

.btn-secondary {
  background: var(--badge-bg);
  color: var(--text);
}

.btn-secondary:hover:not(:disabled) {
  opacity: 0.85;
}

.btn-danger {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(233, 69, 96, 0.1);
}

.btn-sm {
  padding: 5px 12px;
  font-size: 0.82rem;
}

/* ── Program header ── */
.program-header {
  margin-bottom: 28px;
}

.program-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.program-meta {
  color: var(--text-sec);
  font-size: 0.88rem;
  margin-bottom: 4px;
}

.program-meta + .program-meta {
  margin-bottom: 10px;
}

.tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag-badge {
  background: var(--badge-bg);
  color: var(--text);
  font-size: 0.78rem;
  padding: 2px 10px;
  border-radius: var(--radius-badge);
}

.program-objetivo {
  font-size: 0.92rem;
  line-height: 1.5;
  margin-bottom: 10px;
}

.program-objetivo strong {
  color: var(--text);
}

.program-progressao {
  font-size: 0.85rem;
  color: var(--text-sec);
  line-height: 1.5;
}

.program-progressao strong {
  color: var(--text-sec);
}

/* ── Accordion (workout days) ── */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.accordion-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}

.accordion-header:hover {
  background: rgba(255, 255, 255, 0.03);
}

.accordion-chevron {
  font-size: 0.8rem;
  transition: transform 0.2s;
  color: var(--text-sec);
  flex-shrink: 0;
}

.accordion-item.open .accordion-chevron {
  transform: rotate(90deg);
}

.accordion-treino-id {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 24px;
}

.accordion-treino-nome {
  flex: 1;
  font-weight: 600;
  font-size: 0.95rem;
}

.accordion-duracao {
  color: var(--text-sec);
  font-size: 0.82rem;
}

.accordion-body {
  display: none;
  padding: 0 16px 16px;
}

.accordion-item.open .accordion-body {
  display: block;
}

.treino-comentarios {
  font-style: italic;
  color: var(--text-sec);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 14px;
  padding-top: 4px;
}

/* ── Exercise cards ── */
.exercises-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.exercise-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 12px 14px;
}

.exercise-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.exercise-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.muscle-badge {
  background: var(--badge-bg);
  color: var(--text);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: var(--radius-badge);
}

.exercise-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.86rem;
  color: var(--text-sec);
  margin-bottom: 4px;
  align-items: center;
}

.exercise-sets-reps {
  color: var(--text);
  font-weight: 500;
}

.exercise-rpe {
  color: var(--rpe);
}

.exercise-carga {
  color: var(--carga);
  font-size: 0.85rem;
  margin-bottom: 4px;
}

.exercise-carga strong {
  color: var(--carga);
}

.exercise-comments {
  font-size: 0.82rem;
  color: var(--text-sec);
  line-height: 1.5;
  margin-top: 4px;
}

.exercise-video-link {
  display: inline-block;
  margin-top: 6px;
  color: var(--accent);
  font-size: 0.82rem;
  text-decoration: none;
}

.exercise-video-link:hover {
  text-decoration: underline;
}

/* ── Superset groups ── */
.superset-group {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  margin-bottom: 10px;
}

.superset-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.superset-rest {
  font-size: 0.82rem;
  color: var(--text-sec);
  margin-top: 8px;
  padding-left: 2px;
}

.superset-group .exercises-list {
  gap: 8px;
}

/* ── History view ── */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.history-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 16px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.history-active-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 6px;
}

.history-inactive-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  margin-top: 6px;
}

.history-item-body {
  flex: 1;
  min-width: 0;
}

.history-item-name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.badge-active {
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-badge);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-history {
  background: var(--border);
  color: var(--text-sec);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-badge);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.history-item-meta {
  font-size: 0.82rem;
  color: var(--text-sec);
  margin-bottom: 6px;
}

.history-item-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
  align-items: flex-start;
  padding-top: 2px;
}

/* ── Import view ── */
.import-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.import-step {
  display: none;
}

.import-step.active {
  display: block;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-card);
  padding: 40px 20px;
  text-align: center;
  color: var(--text-sec);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  margin-bottom: 20px;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(233, 69, 96, 0.05);
}

.dropzone-hint {
  font-size: 0.9rem;
  line-height: 1.6;
}

.dropzone-hint small {
  display: block;
  font-size: 0.78rem;
  margin-top: 4px;
  color: var(--text-sec);
}

.import-divider {
  text-align: center;
  color: var(--text-sec);
  font-size: 0.82rem;
  margin: 12px 0;
}

.json-textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  color: var(--text);
  font-family: monospace;
  font-size: 0.82rem;
  padding: 12px;
  resize: vertical;
  min-height: 160px;
  outline: none;
  transition: border-color 0.15s;
}

.json-textarea:focus {
  border-color: var(--rpe);
}

.import-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

/* Preview step */
.preview-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px;
  margin-bottom: 20px;
}

.preview-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.preview-meta {
  font-size: 0.88rem;
  color: var(--text-sec);
  margin-bottom: 6px;
}

.preview-objetivo {
  font-size: 0.88rem;
  margin-bottom: 10px;
  line-height: 1.5;
}

.preview-treinos {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
}

.preview-treinos li {
  font-size: 0.88rem;
  color: var(--text-sec);
}

.preview-treinos li::before {
  content: '• ';
  color: var(--accent);
}

.preview-warning {
  background: rgba(233, 69, 96, 0.1);
  border: 1px solid rgba(233, 69, 96, 0.3);
  border-radius: var(--radius-badge);
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.preview-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ── Program detail view (history) ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-sec);
  font-size: 0.88rem;
  margin-bottom: 20px;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  padding: 0;
}

.back-link:hover {
  color: var(--text);
}

/* ── Utility ── */
.view-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.hidden {
  display: none !important;
}