/* =============================================
   COMPONENTS.CSS — Cards, Timeline, Escalas,
   Timer, Metrônomo, Downloads, Professor
   Breakpoints: 768px · 640px · 480px · 360px
   ============================================= */

/* ══════════════════════════════════════════════
   SECTION TITLE
══════════════════════════════════════════════ */
.sec-title {
  font-family: var(--ff-display);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1.1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ══════════════════════════════════════════════
   HERO BLOCK
══════════════════════════════════════════════ */
.hero-block {
  background: linear-gradient(140deg, var(--navy) 0%, var(--navy2) 100%);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  color: white;
}
.hero-block::before {
  content: '♪';
  position: absolute;
  right: -20px; top: -30px;
  font-size: 160px;
  opacity: .05;
  color: var(--gold);
  pointer-events: none;
}
.hero-block h1 {
  font-family: var(--ff-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--gold2);
  line-height: 1.15;
  margin-bottom: .65rem;
}
.hero-block p {
  color: rgba(255,255,255,.6);
  font-size: .9rem;
  max-width: 500px;
  line-height: 1.65;
}

/* ══════════════════════════════════════════════
   CONTENT BOX
══════════════════════════════════════════════ */
.cbox {
  background: var(--white);
  border: 1px solid var(--cream2);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}
.cbox h4 {
  font-family: var(--ff-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: .65rem;
}
.cbox p  { color: var(--muted); line-height: 1.7; font-size: .88rem; margin-bottom: .5rem; }
.cbox ul { margin: .4rem 0 .4rem 1.1rem; color: var(--muted); font-size: .88rem; }
.cbox li { margin-bottom: 4px; line-height: 1.6; }

/* ══════════════════════════════════════════════
   TIP
══════════════════════════════════════════════ */
.tip {
  background: linear-gradient(135deg, rgba(201,169,110,.1), rgba(201,169,110,.04));
  border-left: 3px solid var(--gold);
  border-radius: 6px;
  padding: 11px 15px;
  font-size: .86rem;
  color: var(--text);
  margin-top: .9rem;
  line-height: 1.55;
}

/* ══════════════════════════════════════════════
   CARD GRID — início
══════════════════════════════════════════════ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.1rem;
  margin-bottom: 1.75rem;
}
.card {
  background: var(--white);
  border: 1px solid var(--cream2);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
  cursor: pointer;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 38px rgba(15,27,45,.14); }
.card-ico   { font-size: 28px; margin-bottom: 8px; }
.card h3    { font-size: .95rem; font-weight: 600; margin-bottom: 5px; color: var(--navy); }
.card p     { font-size: .85rem; color: var(--muted); line-height: 1.6; }
.card-stat       { font-size: 1.4rem; font-weight: 700; color: var(--navy); margin-top: 6px; }
.card-stat--gold { color: var(--gold3); }

/* ══════════════════════════════════════════════
   TIMELINE
══════════════════════════════════════════════ */
#timeline { position: relative; }
#timeline::before {
  content: '';
  position: absolute;
  left: 19px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold) 0%, transparent 100%);
  pointer-events: none;
}
.tl-item {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
  position: relative;
}
.tl-dot {
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--cream2);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .95rem;
  position: relative;
  z-index: 1;
  transition: all .3s;
}
.tl-item.done    .tl-dot { background: var(--gold);  border-color: var(--gold); }
.tl-item.current .tl-dot { background: var(--navy); border-color: var(--gold); animation: pulse-ring 2s infinite; }

.tl-body {
  flex: 1;
  background: var(--white);
  border: 1px solid var(--cream2);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow);
  min-width: 0;
}
.tl-item.current .tl-body {
  border-color: var(--border2);
  background: linear-gradient(135deg, var(--white) 0%, rgba(201,169,110,.04) 100%);
}
.tl-month  { font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--gold); margin-bottom: 3px; }
.tl-body h3{ font-family: var(--ff-display); font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.tl-body p { font-size: .83rem; color: var(--muted); line-height: 1.6; margin: 0; }
.tl-status {
  display: inline-block;
  margin-top: 7px;
  font-size: .71rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}
.tl-status.done     { background: rgba(61,139,110,.12); color: var(--success); }
.tl-status.current  { background: rgba(201,169,110,.15); color: var(--gold3); }
.tl-status.upcoming { background: var(--cream2); color: var(--muted); }

/* ══════════════════════════════════════════════
   MONTH CARDS GRID — jornada
══════════════════════════════════════════════ */
.months-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.month-card {
  background: var(--white);
  border: 2px solid var(--cream2);
  border-radius: var(--radius);
  padding: 1.1rem;
  cursor: pointer;
  text-align: center;
  transition: all .25s;
  position: relative;
}
.month-card:hover         { border-color: var(--gold); transform: translateY(-3px); }
.month-card.done          { opacity: .7; }
.month-card.current       { border-color: var(--gold); background: linear-gradient(135deg, var(--white), rgba(201,169,110,.05)); box-shadow: 0 8px 22px rgba(201,169,110,.14); }
.month-card.locked        { opacity: .36; cursor: default; }
.month-card.locked:hover  { border-color: var(--cream2); transform: none; }

.mc-num  { font-family: var(--ff-display); font-size: 1.9rem; font-weight: 700; color: var(--navy); }
.month-card.current .mc-num { color: var(--gold3); }
.mc-name { font-size: .82rem; font-weight: 600; color: var(--navy); margin: 2px 0 4px; }
.mc-tag  { font-size: .7rem; color: var(--muted); }
.mc-badge { position: absolute; top: 8px; right: 8px; }

/* ══════════════════════════════════════════════
   MONTH DETAIL
══════════════════════════════════════════════ */
.month-hero {
  background: linear-gradient(140deg, var(--navy) 0%, var(--navy3) 100%);
  border-radius: var(--radius);
  padding: 2.25rem 2rem;
  margin-bottom: 1.75rem;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.month-hero::after {
  content: attr(data-num);
  position: absolute;
  right: 1rem; bottom: -1rem;
  font-family: var(--ff-display);
  font-size: 8rem;
  font-weight: 700;
  color: rgba(201,169,110,.07);
  line-height: 1;
  pointer-events: none;
}
.month-hero-badge {
  display: inline-block;
  background: rgba(201,169,110,.15);
  border: 1px solid rgba(201,169,110,.3);
  border-radius: 30px;
  padding: 4px 13px;
  font-size: .72rem;
  font-weight: 600;
  color: var(--gold2);
  letter-spacing: .07em;
  text-transform: uppercase;
  margin-bottom: .85rem;
}
.month-hero h2 {
  font-family: var(--ff-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold2);
  margin-bottom: .45rem;
}
.month-hero p { color: rgba(255,255,255,.58); font-size: .88rem; max-width: 460px; }

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--cream2);
  border-radius: 8px;
  padding: 7px 13px;
  font-size: .81rem;
  font-weight: 500;
  color: var(--navy);
  cursor: pointer;
  margin-bottom: 1.25rem;
  transition: border-color .2s, box-shadow .2s;
  font-family: var(--ff-body);
}
.back-btn:hover { border-color: var(--gold); box-shadow: 0 4px 12px rgba(201,169,110,.12); }

/* ══════════════════════════════════════════════
   CHECKLIST
══════════════════════════════════════════════ */
.month-checklist { list-style: none; }
.month-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 11px 0;
  border-bottom: 1px solid var(--cream2);
}
.month-checklist li:last-child { border-bottom: none; }
.month-checklist input[type="checkbox"] {
  width: 17px; height: 17px;
  flex-shrink: 0;
  accent-color: var(--gold);
  cursor: pointer;
  margin-top: 2px;
}
.month-checklist span    { font-size: .88rem; color: var(--text); line-height: 1.5; }
.month-checklist .done-item span { text-decoration: line-through; color: var(--muted); }

/* ══════════════════════════════════════════════
   PROGRESS BAR
══════════════════════════════════════════════ */
.progress-bar-wrap {
  background: var(--cream2);
  border-radius: 6px;
  height: 7px;
  overflow: hidden;
  margin-top: .9rem;
}
.progress-bar-fill {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold2) 100%);
  transition: width .5s cubic-bezier(.22,1,.36,1);
}
.progress-label { font-size: .78rem; color: var(--muted); margin-top: 5px; margin-bottom: .9rem; }

/* ══════════════════════════════════════════════
   ESCALAS
══════════════════════════════════════════════ */
.scales-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: .9rem;
  margin-bottom: 1.25rem;
}
.scale-box {
  background: var(--white);
  border: 2px solid var(--cream2);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all .25s;
}
.scale-box:hover,
.scale-box.active { border-color: var(--gold); box-shadow: 0 6px 18px rgba(201,169,110,.15); }
.sc-step { font-size: .65rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 3px; }
.sc-name { font-family: var(--ff-display); font-size: 1.5rem; font-weight: 700; color: var(--navy); }
.sc-info { font-size: .72rem; color: var(--muted); margin-top: 3px; }

.circuit-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 1.1rem;
}
.circuit-tab {
  flex: 1;
  padding: 11px 14px;
  background: var(--white);
  border: 2px solid var(--cream2);
  border-radius: var(--radius);
  font-family: var(--ff-body);
  font-size: .83rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  text-align: center;
  transition: all .25s;
}
.circuit-tab:hover  { border-color: var(--gold); color: var(--navy); }
.circuit-tab.active { border-color: var(--gold); background: linear-gradient(135deg, var(--white), rgba(201,169,110,.06)); color: var(--navy); box-shadow: 0 4px 14px rgba(201,169,110,.14); }

/* ══════════════════════════════════════════════
   DOWNLOADS
══════════════════════════════════════════════ */
.dl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.1rem;
}
.dl-card {
  background: var(--white);
  border: 1px solid var(--cream2);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem;      /* padding uniforme */
  display: flex;
  flex-direction: column;
  gap: .65rem;
  transition: border-color .25s, box-shadow .25s;
}
.dl-card:hover { border-color: var(--gold); box-shadow: 0 8px 24px rgba(201,169,110,.12); }
.dl-ico   { font-size: 2rem; }
.dl-title { font-weight: 600; font-size: .92rem; color: var(--navy); line-height: 1.35; }
.dl-desc  { font-size: .8rem; color: var(--muted); flex: 1; line-height: 1.5; }

/* botões de download — padding uniforme */
.dl-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: auto;
  padding-top: .25rem;           /* pequeno respiro do dl-desc */
}
.dl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;             /* padding uniforme em todos os botões */
  background: var(--navy);
  color: var(--gold2);
  border: none;
  border-radius: 8px;
  font-family: var(--ff-body);
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: background .2s;
  text-decoration: none;
  white-space: nowrap;
}
.dl-btn:hover         { background: var(--navy3); }
.dl-btn--img          { background: var(--navy3); }
.dl-btn--download     { background: linear-gradient(135deg, var(--gold3), var(--gold)); color: var(--navy); }
.dl-btn--download:hover { background: var(--gold2); color: var(--navy); }
.dl-btn--soon         { background: var(--cream2); color: var(--muted); cursor: default; }

.dl-btn-pair {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ── Modal Downloads ── */
.dl-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 8000;
  background: rgba(10,15,25,.86);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: .75rem;
}
.dl-modal.active {
  display: flex;
  animation: fadein .2s ease;
}
.dl-modal-box {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,.5);
  display: flex;
  flex-direction: column;
  max-height: 92vh;
  width: 100%;
}
.dl-modal-box--pdf { max-width: 860px; height: 88vh; }
.dl-modal-box--img { max-width: 680px; }

.dl-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--navy);
  color: var(--gold2);
  font-weight: 600;
  font-size: .87rem;
  flex-shrink: 0;
}
.dl-modal-close {
  background: rgba(255,255,255,.1);
  border: none;
  border-radius: 6px;
  color: var(--white);
  font-size: .95rem;
  width: 28px; height: 28px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.dl-modal-close:hover { background: rgba(255,255,255,.25); }
.dl-modal-iframe      { flex: 1; width: 100%; border: none; }
.dl-modal-img-wrap    { padding: 14px; display: flex; align-items: center; justify-content: center; }
.dl-modal-img-wrap img{ max-width: 100%; max-height: 74vh; border-radius: 6px; display: block; }

/* ── App Download Banner ── */
.app-download-banner {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy3) 100%);
  border: 2px solid var(--gold);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem;
  margin-bottom: 1.4rem;
  text-decoration: none;
  color: var(--white);
  transition: transform .2s, box-shadow .2s;
  cursor: pointer;
}
.app-download-banner:hover  { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(201,169,110,.22); }
.app-download-icon          { font-size: 2.2rem; flex-shrink: 0; }
.app-download-text          { flex: 1; }
.app-download-text strong   { display: block; font-size: .95rem; font-weight: 700; color: var(--gold2); margin-bottom: 3px; }
.app-download-text span     { font-size: .79rem; color: rgba(255,255,255,.55); }
.app-download-arrow         { font-size: 1.3rem; color: var(--gold); flex-shrink: 0; }

/* ══════════════════════════════════════════════
   TIMER & METRÔNOMO
══════════════════════════════════════════════ */
.timer-block,
.metro-block {
  background: var(--navy);
  border-radius: var(--radius);
  padding: 2.25rem 1.75rem;
  text-align: center;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
}

.timer-display {
  font-family: 'Courier New', monospace;
  font-size: 3.8rem;
  font-weight: 700;
  color: var(--gold2);
  margin-bottom: 1.1rem;
  letter-spacing: .05em;
}

.timer-presets,
.metro-presets {
  display: flex;
  gap: 7px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: .9rem;
}
.preset-btn {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(201,169,110,.2);
  border-radius: 6px;
  padding: 7px 13px;
  font-family: var(--ff-body);
  font-size: .78rem;
  font-weight: 500;
  color: rgba(255,255,255,.6);
  cursor: pointer;
  transition: all .2s;
}
.preset-btn:hover { border-color: var(--gold); color: var(--gold2); }

.ctrl-btn {
  background: linear-gradient(135deg, var(--gold), var(--gold3));
  color: var(--navy);
  border: none;
  border-radius: 8px;
  padding: 12px 26px;
  font-family: var(--ff-body);
  font-size: .88rem;
  font-weight: 700;
  cursor: pointer;
  margin: 0 5px;
  transition: transform .2s, box-shadow .2s;
}
.ctrl-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(201,169,110,.28); }
.ctrl-btn--secondary { background: rgba(255,255,255,.08); color: rgba(255,255,255,.6); }

/* beats */
.metro-beats        { display: flex; gap: 12px; justify-content: center; margin-bottom: 1.25rem; }
.metro-dot          { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,.1); border: 2px solid rgba(201,169,110,.25); transition: background .07s, transform .07s; }
.metro-dot--accent  { border-color: var(--gold); }
.metro-dot--active  { background: var(--gold2) !important; border-color: var(--gold2) !important; transform: scale(1.25); box-shadow: 0 0 12px rgba(232,201,154,.5); }
.metro-dot--accent.metro-dot--active { background: #fff !important; border-color: #fff !important; box-shadow: 0 0 18px rgba(255,255,255,.55); }

.metro-bpm-display  { font-family: 'Courier New', monospace; font-size: 2.8rem; font-weight: 700; color: var(--gold2); margin-bottom: 1.1rem; letter-spacing: .04em; }

.metro-bpm-control  { display: flex; align-items: center; gap: 8px; justify-content: center; margin-bottom: 1.1rem; flex-wrap: wrap; }
.metro-adj-btn {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(201,169,110,.25);
  border-radius: 8px;
  color: var(--gold2);
  font-family: var(--ff-body);
  font-size: .82rem;
  font-weight: 700;
  padding: 7px 12px;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.metro-adj-btn:hover { background: rgba(201,169,110,.15); border-color: var(--gold); }
.metro-slider       { flex: 1; min-width: 100px; max-width: 240px; accent-color: var(--gold); height: 6px; cursor: pointer; }

.metro-compass-row  { display: flex; align-items: center; gap: 10px; justify-content: center; margin-bottom: 1.1rem; flex-wrap: wrap; }
.metro-compass-label{ color: rgba(255,255,255,.5); font-size: .82rem; }
.metro-sig-btn {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(201,169,110,.2);
  border-radius: 8px;
  color: rgba(255,255,255,.55);
  font-family: var(--ff-body);
  font-size: .95rem;
  font-weight: 700;
  padding: 7px 20px;
  cursor: pointer;
  transition: all .15s;
  letter-spacing: .05em;
}
.metro-sig-btn:hover  { border-color: var(--gold); color: var(--gold2); }
.metro-sig-btn.active { background: linear-gradient(135deg, var(--gold), var(--gold3)); border-color: var(--gold); color: var(--navy); }

.metro-ctrl-row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ══════════════════════════════════════════════
   PROFESSOR — estatísticas, tabelas, solicitações
══════════════════════════════════════════════ */
.prof-header {
  background: linear-gradient(140deg, #1a0a00 0%, #3d1f00 100%);
  border-radius: var(--radius);
  padding: 2.25rem 2rem;
  margin-bottom: 2rem;
  border: 1px solid rgba(201,169,110,.3);
  position: relative;
  overflow: hidden;
}
.prof-header::before { content: '🎓'; position: absolute; right: 2rem; top: 1.5rem; font-size: 4.5rem; opacity: .12; }
.prof-header h2 { font-family: var(--ff-display); font-size: 1.9rem; font-weight: 700; color: var(--gold2); margin-bottom: .35rem; }
.prof-header p  { color: rgba(255,255,255,.5); font-size: .85rem; }

.prof-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.prof-stat {
  background: var(--white);
  border: 1px solid var(--cream2);
  border-radius: var(--radius);
  padding: 1.1rem;
  text-align: center;
  box-shadow: var(--shadow);
}
.prof-stat-num   { font-family: var(--ff-display); font-size: 1.85rem; font-weight: 700; color: var(--gold3); }
.prof-stat-label { font-size: .74rem; color: var(--muted); margin-top: 4px; font-weight: 500; text-transform: uppercase; letter-spacing: .05em; }

/* students table */
.students-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.students-table th {
  background: var(--navy);
  color: var(--gold2);
  padding: 13px 15px;
  text-align: left;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.students-table td {
  padding: 13px 15px;
  border-bottom: 1px solid var(--cream2);
  font-size: .86rem;
  color: var(--text);
  vertical-align: middle;
}
.students-table tr:last-child td { border-bottom: none; }
.students-table tr:hover td      { background: var(--cream); }

.student-name  { font-weight: 600; color: var(--navy); }
.student-email { font-size: .75rem; color: var(--muted); margin-top: 2px; }

.month-select {
  padding: 7px 10px;
  border: 1px solid var(--cream3);
  border-radius: 8px;
  font-family: var(--ff-body);
  font-size: .83rem;
  color: var(--navy);
  background: var(--cream);
  cursor: pointer;
  transition: border-color .2s;
  min-width: 150px;
}
.month-select:focus { outline: none; border-color: var(--gold); }

.save-row-btn {
  padding: 6px 13px;
  background: linear-gradient(135deg, var(--gold), var(--gold3));
  color: var(--navy);
  border: none;
  border-radius: 7px;
  font-family: var(--ff-body);
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
}
.save-row-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(201,169,110,.28); }
.save-row-btn.saved { background: rgba(61,139,110,.15); color: var(--success); cursor: default; }

/* solicitações */
.requests-list {
  display: flex;
  flex-direction: column;
  gap: .9rem;
  margin-bottom: 1.75rem;
}
.request-card {
  background: var(--white);
  border: 2px solid rgba(212,134,10,.3);
  border-radius: var(--radius);
  padding: 1.1rem 1.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-shadow: 0 4px 14px rgba(212,134,10,.07);
  flex-wrap: wrap;
}
.request-name    { font-weight: 700; font-size: .92rem; color: var(--navy); }
.request-detail  { font-size: .8rem; color: var(--muted); margin-top: 3px; }
.request-actions { display: flex; gap: 8px; flex-shrink: 0; }

.req-approve-btn {
  padding: 7px 15px;
  background: rgba(61,139,110,.12);
  border: 1px solid rgba(61,139,110,.3);
  border-radius: 8px;
  color: var(--success);
  font-family: var(--ff-body);
  font-size: .8rem; font-weight: 700;
  cursor: pointer; transition: all .2s;
}
.req-approve-btn:hover { background: var(--success); color: white; }

.req-deny-btn {
  padding: 7px 15px;
  background: rgba(192,57,43,.08);
  border: 1px solid rgba(192,57,43,.25);
  border-radius: 8px;
  color: var(--danger);
  font-family: var(--ff-body);
  font-size: .8rem; font-weight: 700;
  cursor: pointer; transition: all .2s;
}
.req-deny-btn:hover { background: var(--danger); color: white; }

/* add student form */
.add-student-form {
  display: flex;
  gap: .9rem;
  align-items: flex-end;
  flex-wrap: wrap;
}
.add-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex: 1;
  min-width: 150px;
}
.add-field label {
  font-size: .72rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.add-field input {
  padding: 9px 13px;
  border: 1px solid var(--cream3);
  border-radius: 8px;
  font-family: var(--ff-body);
  font-size: .86rem;
  color: var(--navy);
  background: var(--cream);
  transition: border-color .2s;
}
.add-field input:focus { outline: none; border-color: var(--gold); }

/* empty state */
.empty-state { text-align: center; padding: 2.5rem 1rem; color: var(--muted); font-size: .88rem; }
.empty-state .ico { font-size: 2.8rem; margin-bottom: .85rem; }

/* request blocks (aluno) */
.request-advance-btn {
  width: 100%;
  margin-top: 1.35rem;
  padding: 13px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold3) 100%);
  color: var(--navy);
  font-family: var(--ff-body);
  font-size: .92rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s;
  display: block;
}
.request-advance-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(201,169,110,.28); }

.request-pending-block {
  margin-top: 1.35rem;
  padding: 13px 17px;
  background: rgba(212,134,10,.08);
  border: 1px solid rgba(212,134,10,.3);
  border-radius: 10px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--warn);
  text-align: center;
}

/* ══════════════════════════════════════════════
   RESPONSIVE COMPONENTS
══════════════════════════════════════════════ */
@media (max-width: 768px) {
  .sec-title        { font-size: 1.4rem; }
  .hero-block       { padding: 2rem 1.4rem; }
  .hero-block h1    { font-size: 1.85rem; }
  .hero-block::before { font-size: 110px; }
  .month-hero h2    { font-size: 1.65rem; }
  .month-hero       { padding: 1.75rem 1.4rem; }
  .cards-grid       { grid-template-columns: repeat(2, 1fr); }
  .months-grid      { grid-template-columns: repeat(3, 1fr); }
  .timer-display    { font-size: 2.8rem; }
  .metro-bpm-display{ font-size: 2.2rem; }
  .timer-block, .metro-block { padding: 1.75rem 1.25rem; }
  /* oculta coluna Senha em telas médias */
  .students-table th:nth-child(2),
  .students-table td:nth-child(2) { display: none; }
}

@media (max-width: 640px) {
  .circuit-tabs    { flex-direction: column; }
  .request-card    { flex-direction: column; align-items: flex-start; }
  .add-student-form{ flex-direction: column; }
  .add-field       { min-width: 100%; }
  .dl-grid         { grid-template-columns: 1fr; }
  .dl-modal-box--pdf { height: 92vh; }
  /* tabela professor: ocultar colunas menos essenciais */
  .students-table th:nth-child(3),
  .students-table td:nth-child(3) { display: none; }
}

@media (max-width: 480px) {
  .sec-title     { font-size: 1.25rem; }
  .hero-block h1 { font-size: 1.5rem; }
  .hero-block    { padding: 1.5rem 1rem; }
  .months-grid   { grid-template-columns: repeat(2, 1fr); }
  .cards-grid    { grid-template-columns: 1fr; }
  .prof-stats    { grid-template-columns: repeat(2, 1fr); }
  .cbox          { padding: 1.1rem; }
  .timer-display { font-size: 2.4rem; }
  .metro-beats   { gap: 8px; }
  .metro-dot     { width: 28px; height: 28px; }
}

@media (max-width: 360px) {
  .hero-block h1  { font-size: 1.3rem; }
  .months-grid    { grid-template-columns: repeat(2, 1fr); gap: .65rem; }
  .prof-stats     { grid-template-columns: repeat(2, 1fr); gap: .65rem; }
  .timer-display  { font-size: 2rem; }
  .ctrl-btn       { padding: 10px 18px; font-size: .82rem; }
}