:root {
  --bg: #0A0A0F;
  --bg2: #12121A;
  --bg3: #1A1A26;
  --bg4: #22222F;
  --accent: #FF3C3C;
  --accent2: #FF6B35;
  --gold: #F5A623;
  --text: #F0F0F5;
  --muted: #8888AA;
  --border: rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.12);
  --green: #22C55E;
  --blue: #3B82F6;
  --purple: #A855F7;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--text); font-family: 'DM Sans', sans-serif; min-height: 100vh; overflow-x: hidden; }

/* ── SIDEBAR ── */
.sidebar {
  position: fixed; left: 0; top: 0; bottom: 0; width: 240px;
  background: var(--bg2); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; z-index: 100;
}
.logo { padding: 28px 24px 20px; border-bottom: 1px solid var(--border); }
.logo-text {
  font-family: 'Bebas Neue', sans-serif; font-size: 32px;
  letter-spacing: 4px; color: var(--text);
  display: flex; align-items: center; gap: 10px;
}
.logo-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); display: inline-block; margin-bottom: 3px; flex-shrink: 0; }
.logo-sub { font-size: 10px; color: var(--muted); letter-spacing: 3px; text-transform: uppercase; margin-top: 2px; font-weight: 500; }
.nav { padding: 20px 12px; flex: 1; overflow-y: auto; }
.nav-section { font-size: 10px; color: var(--muted); letter-spacing: 2px; text-transform: uppercase; padding: 0 12px; margin-bottom: 8px; margin-top: 16px; }
.nav-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px;
  border-radius: 10px; cursor: pointer; font-size: 14px; color: var(--muted);
  transition: all 0.2s; margin-bottom: 2px; font-weight: 500;
  border: 1px solid transparent;
}
.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: linear-gradient(135deg, rgba(255,60,60,0.15), rgba(255,107,53,0.08)); color: var(--text); border-color: rgba(255,60,60,0.2); }
.nav-item .icon { width: 18px; height: 18px; opacity: 0.7; flex-shrink: 0; }
.nav-item.active .icon { opacity: 1; }
.nav-badge { margin-left: auto; background: var(--accent); color: white; font-size: 10px; border-radius: 10px; padding: 1px 7px; font-family: 'DM Mono', monospace; }
.sidebar-footer { padding: 16px; border-top: 1px solid var(--border); }
.user-card { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--bg3); border-radius: 10px; cursor: pointer; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent2)); display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 14px; color: white; flex-shrink: 0; }
.user-name { font-size: 13px; font-weight: 600; }
.user-plan { font-size: 11px; color: var(--muted); }

/* ── MAIN ── */
.main { margin-left: 240px; min-height: 100vh; }

/* ── TOPBAR ── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,15,0.9); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 32px; display: flex; align-items: center; justify-content: space-between;
}
.topbar-title { font-family: 'Bebas Neue', sans-serif; font-size: 22px; letter-spacing: 2px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.streak-pill {
  display: flex; align-items: center; gap: 6px;
  background: rgba(245,166,35,0.12); border: 1px solid rgba(245,166,35,0.25);
  padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; color: var(--gold);
}

/* ── PAGES ── */
.page { padding: 32px; display: none; }
.page.active { display: block; }

/* ── STAT CARDS ── */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 28px; }
.stat-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 14px;
  padding: 20px; position: relative; overflow: hidden;
}
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; }
.stat-card.red::before   { background: linear-gradient(90deg, var(--accent), var(--accent2)); }
.stat-card.gold::before  { background: linear-gradient(90deg, var(--gold), #F5A623aa); }
.stat-card.green::before { background: linear-gradient(90deg, var(--green), #22C55E88); }
.stat-card.blue::before  { background: linear-gradient(90deg, var(--blue), #3B82F688); }
.stat-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 8px; }
.stat-value { font-family: 'Bebas Neue', sans-serif; font-size: 38px; letter-spacing: 1px; line-height: 1; }
.stat-change { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; padding: 2px 8px; border-radius: 20px; margin-top: 6px; font-weight: 600; }
.stat-change.up   { background: rgba(34,197,94,0.12); color: var(--green); }
.stat-change.down { background: rgba(255,60,60,0.12); color: var(--accent); }

/* ── GRIDS / CARDS ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: 14px; padding: 22px; }
.card-title { font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--muted); margin-bottom: 16px; font-weight: 600; }

/* ── WEEK SCHEDULE ── */
.week-row { display: flex; gap: 8px; }
.day-pill {
  flex: 1; padding: 10px 4px; border-radius: 10px; text-align: center;
  border: 1px solid var(--border); cursor: pointer; transition: all 0.2s;
}
.day-pill:hover  { border-color: var(--border2); background: var(--bg3); }
.day-pill.today  { border-color: rgba(255,60,60,0.5); background: rgba(255,60,60,0.08); }
.day-pill.done   { border-color: rgba(34,197,94,0.35); background: rgba(34,197,94,0.06); }
.day-pill.rest   { opacity: 0.55; }
.day-name { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 5px; }
.day-type { font-size: 10px; font-weight: 700; }
.day-dot { width: 5px; height: 5px; border-radius: 50%; margin: 5px auto 0; }
.day-dot.red   { background: var(--accent); }
.day-dot.green { background: var(--green); }
.day-dot.empty { background: transparent; }

/* ── PROGRESS BARS ── */
.progress-item { margin-bottom: 14px; }
.progress-header { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 13px; }
.progress-bar { height: 6px; background: var(--bg4); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 3px; transition: width 1s ease; }

/* ── ACTIVITY ── */
.activity-item { display: flex; align-items: center; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.activity-item:last-child { border-bottom: none; }
.activity-icon { width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
.activity-info { flex: 1; }
.activity-name { font-size: 14px; font-weight: 600; }
.activity-date { font-size: 12px; color: var(--muted); }
.activity-stat     { font-family: 'DM Mono', monospace; font-size: 13px; text-align: right; }
.activity-stat-sub { font-size: 11px; color: var(--muted); text-align: right; }

/* ── MUSCLE TAGS ── */
.muscle-tag { padding: 5px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; border: 1px solid; cursor: default; }
.muscle-tag.chest     { background: rgba(255,60,60,0.1);   border-color: rgba(255,60,60,0.25);   color: #FF7070; }
.muscle-tag.back      { background: rgba(59,130,246,0.1);  border-color: rgba(59,130,246,0.25);  color: #60A5FA; }
.muscle-tag.legs      { background: rgba(168,85,247,0.1);  border-color: rgba(168,85,247,0.25);  color: #C084FC; }
.muscle-tag.arms      { background: rgba(34,197,94,0.1);   border-color: rgba(34,197,94,0.25);   color: #4ADE80; }
.muscle-tag.shoulders { background: rgba(245,166,35,0.1);  border-color: rgba(245,166,35,0.25);  color: var(--gold); }
.muscle-tag.core      { background: rgba(255,107,53,0.1);  border-color: rgba(255,107,53,0.25);  color: var(--accent2); }

/* ── DAY SELECTOR (Today page) ── */
.day-selector {
  display: flex; gap: 8px; margin-bottom: 24px; overflow-x: auto; padding-bottom: 4px;
}
.day-selector::-webkit-scrollbar { height: 3px; }
.day-selector::-webkit-scrollbar-thumb { background: var(--bg4); border-radius: 2px; }
.ds-btn {
  flex-shrink: 0; padding: 8px 18px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg2);
  color: var(--muted); font-size: 13px; font-weight: 600; cursor: pointer;
  font-family: 'DM Sans', sans-serif; transition: all 0.2s;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.ds-btn:hover { border-color: var(--border2); color: var(--text); background: var(--bg3); }
.ds-btn.active { color: var(--text); border-color: var(--accent); background: rgba(255,60,60,0.1); }
.ds-btn .ds-day  { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.ds-btn.active .ds-day { color: var(--accent); }
.ds-btn .ds-name { font-family: 'Bebas Neue'; font-size: 15px; letter-spacing: 1px; }

/* ── TODAY HEADER ── */
.day-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 16px; }
.day-label { font-family: 'Bebas Neue', sans-serif; font-size: 42px; letter-spacing: 3px; line-height: 1; }
.day-badge { display: inline-block; padding: 5px 16px; border-radius: 20px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-top: 6px; }
.badge-push       { background: rgba(255,60,60,0.15);  color: var(--accent);  border: 1px solid rgba(255,60,60,0.3); }
.badge-pull       { background: rgba(59,130,246,0.15); color: var(--blue);    border: 1px solid rgba(59,130,246,0.3); }
.badge-legs       { background: rgba(168,85,247,0.15); color: var(--purple);  border: 1px solid rgba(168,85,247,0.3); }
.badge-rest       { background: rgba(34,197,94,0.15);  color: var(--green);   border: 1px solid rgba(34,197,94,0.3); }
.badge-chest-back { background: rgba(245,166,35,0.15); color: var(--gold);    border: 1px solid rgba(245,166,35,0.3); }
.badge-arms       { background: rgba(255,107,53,0.15); color: var(--accent2); border: 1px solid rgba(255,107,53,0.3); }

/* ── TIMER ── */
.timer-display { font-family: 'Bebas Neue', sans-serif; font-size: 64px; letter-spacing: 4px; color: var(--text); text-align: center; }
.timer-label { text-align: center; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 2px; margin-top: 4px; }

/* ── BUTTONS ── */
.start-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: white; border: none; padding: 14px 28px; border-radius: 12px;
  font-family: 'Bebas Neue', sans-serif; font-size: 18px; letter-spacing: 2px;
  cursor: pointer; transition: all 0.2s; display: flex; align-items: center; gap: 8px;
}
.start-btn:hover  { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,60,60,0.3); }
.start-btn:active { transform: translateY(0); }
.btn-secondary {
  padding: 12px 20px; border-radius: 12px; border: 1px solid var(--border2);
  background: transparent; color: var(--text); font-size: 14px; cursor: pointer;
  font-family: 'DM Sans', sans-serif; font-weight: 500; transition: all 0.2s;
}
.btn-secondary:hover { background: var(--bg3); }
.btn-row { display: flex; gap: 10px; margin-top: 20px; }
.btn-primary {
  flex: 1; padding: 12px; border-radius: 10px; border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent2)); color: white;
  font-size: 14px; cursor: pointer; font-family: 'DM Sans', sans-serif; font-weight: 600; transition: all 0.2s;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-row .btn-secondary { flex: 1; }

/* ── EXERCISE CARDS ── */
.exercise-section { margin-bottom: 24px; }
.ex-section-title { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 11px; text-transform: uppercase; letter-spacing: 2px; color: var(--muted); font-weight: 600; }
.ex-section-line  { flex: 1; height: 1px; background: var(--border); }
.exercise-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 14px; margin-bottom: 10px; overflow: hidden; transition: border-color 0.2s; }
.exercise-card:hover     { border-color: var(--border2); }
.exercise-card.completed { border-color: rgba(34,197,94,0.3); background: rgba(34,197,94,0.03); }
.ex-header { display: flex; align-items: center; padding: 14px 18px; cursor: pointer; gap: 14px; }
.ex-num { width: 28px; height: 28px; border-radius: 50%; background: var(--bg4); display: flex; align-items: center; justify-content: center; font-family: 'DM Mono', monospace; font-size: 12px; color: var(--muted); flex-shrink: 0; }
.exercise-card.completed .ex-num { background: rgba(34,197,94,0.2); color: var(--green); }
.ex-name { font-size: 15px; font-weight: 600; }
.ex-meta { font-size: 12px; color: var(--muted); margin-top: 2px; }
.ex-sets-badge { font-family: 'DM Mono', monospace; font-size: 13px; color: var(--muted); }
.ex-expand { font-size: 18px; color: var(--muted); transition: transform 0.2s; min-width: 20px; text-align: center; }
.ex-body { padding: 0 18px 16px; border-top: 1px solid var(--border); }
.ex-cue { font-size: 13px; color: var(--muted); padding: 12px 0; font-style: italic; border-bottom: 1px solid var(--border); margin-bottom: 12px; }

/* ── SETS TABLE ── */
.sets-table { width: 100%; border-collapse: collapse; }
.sets-table th { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); padding: 0 0 8px; text-align: center; font-weight: 600; }
.sets-table th:first-child { text-align: left; }
.sets-table td { padding: 6px 4px; text-align: center; vertical-align: middle; }
.sets-table td:first-child { text-align: left; }
.set-num { font-family: 'DM Mono', monospace; font-size: 12px; color: var(--muted); display: inline-block; width: 24px; }
.set-input {
  background: var(--bg3); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-family: 'DM Mono', monospace; font-size: 14px;
  padding: 6px 8px; width: 68px; text-align: center; outline: none; transition: border-color 0.2s;
}
.set-input:focus { border-color: var(--accent); }
.set-done-btn {
  width: 32px; height: 32px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg3); cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 14px; transition: all 0.2s; margin: 0 auto; color: var(--muted);
}
.set-done-btn:hover { border-color: var(--green); color: var(--green); }
.set-done-btn.done { background: rgba(34,197,94,0.15); border-color: rgba(34,197,94,0.4); color: var(--green); }

/* ── HISTORY ── */
.history-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 14px;
  padding: 18px 22px; margin-bottom: 12px; display: flex; align-items: center; gap: 16px;
  cursor: pointer; transition: all 0.2s;
}
.history-card:hover { border-color: var(--border2); transform: translateX(3px); }
.history-date { text-align: center; min-width: 52px; }
.history-day-num { font-family: 'Bebas Neue', sans-serif; font-size: 28px; line-height: 1; }
.history-month   { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.history-divider { width: 1px; height: 40px; background: var(--border); flex-shrink: 0; }
.history-info    { flex: 1; min-width: 0; }
.history-type    { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.history-detail  { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.history-stats   { display: flex; gap: 16px; text-align: right; flex-shrink: 0; }
.h-stat-val   { font-family: 'DM Mono', monospace; font-size: 14px; font-weight: 600; }
.h-stat-label { font-size: 11px; color: var(--muted); }

/* ── PROGRESS / CHARTS ── */
.chart-area { height: 160px; position: relative; margin: 12px 0; }
.chart-svg  { width: 100%; height: 100%; overflow: visible; }
.pr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pr-card { background: var(--bg3); border: 1px solid var(--border); border-radius: 12px; padding: 14px; display: flex; align-items: center; gap: 12px; }
.pr-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.pr-val  { font-family: 'Bebas Neue', sans-serif; font-size: 24px; }
.pr-exercise { font-size: 12px; color: var(--muted); }
.pr-badge { font-size: 10px; padding: 2px 8px; border-radius: 10px; font-weight: 600; margin-top: 3px; display: inline-block; background: rgba(34,197,94,0.15); color: var(--green); }
.body-stat-card { text-align: center; padding: 16px; background: var(--bg3); border-radius: 12px; }
.body-stat-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }

/* ── BAR CHART ── */
.bar-chart { display: flex; align-items: flex-end; gap: 6px; height: 120px; padding-top: 10px; }
.bar-wrap  { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 5px; height: 100%; justify-content: flex-end; }
.bar       { width: 100%; border-radius: 4px 4px 0 0; min-height: 4px; }
.bar-label { font-size: 9px; color: var(--muted); }

/* ── MODAL ── */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.75); z-index: 200; display: none; align-items: center; justify-content: center; }
.modal-overlay.open { display: flex; }
.modal { background: var(--bg2); border: 1px solid var(--border2); border-radius: 20px; padding: 32px; width: 480px; max-width: 95vw; }
.modal-title { font-family: 'Bebas Neue', sans-serif; font-size: 28px; letter-spacing: 2px; margin-bottom: 20px; }
.modal-close { float: right; background: none; border: none; color: var(--muted); font-size: 24px; cursor: pointer; margin-top: -4px; line-height: 1; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg4); border-radius: 3px; }

/* ── ANIMATIONS ── */
@keyframes fadeSlideIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.animate-in { animation: fadeSlideIn 0.35s ease forwards; opacity: 0; }
.animate-in:nth-child(1) { animation-delay: 0.00s; }
.animate-in:nth-child(2) { animation-delay: 0.05s; }
.animate-in:nth-child(3) { animation-delay: 0.10s; }
.animate-in:nth-child(4) { animation-delay: 0.15s; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-3 .card[style*="span 2"] { grid-column: span 2; }
}
@media (max-width: 900px) {
  .sidebar { width: 64px; }
  .logo-text span:not(.logo-dot) { display: none; }
  .logo-sub { display: none; }
  .nav-item span:not(.nav-badge) { display: none; }
  .nav-section { display: none; }
  .user-name, .user-plan { display: none; }
  .main { margin-left: 64px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-3 .card[style*="span 2"] { grid-column: span 1; }
  .pr-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page { padding: 16px; }
  .topbar { padding: 12px 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .day-header { flex-direction: column; align-items: flex-start; }
  .timer-display { font-size: 44px; }
}