/* ─── THEME VARIABLES ────────────────────────────────────────────────────── */
:root {
  --bg: #f4f4f5;
  --bg2: #ffffff;
  --bg3: #e4e4e7;
  --surface: #ffffff;
  --surface2: #f9f9fb;
  --border: #e4e4e7;
  --border2: #d1d1d6;
  --text: #09090b;
  --text2: #52525b;
  --text3: #a1a1aa;
  --accent: #6366f1;
  --accent2: #818cf8;
  --accent-bg: #eef2ff;
  --accent-text: #4338ca;
  --green: #22c55e;
  --green-bg: #f0fdf4;
  --green-text: #15803d;
  --red: #ef4444;
  --red-bg: #fef2f2;
  --red-text: #b91c1c;
  --amber: #f59e0b;
  --amber-bg: #fffbeb;
  --amber-text: #92400e;
  --blue: #3b82f6;
  --blue-bg: #eff6ff;
  --blue-text: #1d4ed8;
  --gold: #f59e0b;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.1);
  --transition: 0.18s ease;
  --sidebar-w: 240px;
  --header-h: 60px;
}

[data-theme="dark"] {
  --bg: #09090b;
  --bg2: #111113;
  --bg3: #1c1c1f;
  --surface: #18181b;
  --surface2: #1c1c1f;
  --border: #27272a;
  --border2: #3f3f46;
  --text: #fafafa;
  --text2: #a1a1aa;
  --text3: #52525b;
  --accent: #818cf8;
  --accent2: #6366f1;
  --accent-bg: #1e1b4b;
  --accent-text: #a5b4fc;
  --green: #4ade80;
  --green-bg: #052e16;
  --green-text: #86efac;
  --red: #f87171;
  --red-bg: #2d0a0a;
  --red-text: #fca5a5;
  --amber: #fbbf24;
  --amber-bg: #1c1200;
  --amber-text: #fde68a;
  --blue: #60a5fa;
  --blue-bg: #0c1a35;
  --blue-text: #93c5fd;
  --gold: #fbbf24;
  --shadow: 0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.5);
}

/* ─── RESET & BASE ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100%;
  transition: background var(--transition), color var(--transition);
  font-size: 14px;
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: 14px; }

/* ─── AUTH SCREEN ────────────────────────────────────────────────────────── */
#auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
}
.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}
.auth-logo {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.auth-logo span { color: var(--accent); }
.auth-sub { color: var(--text2); font-size: 14px; margin-bottom: 28px; }
.auth-tabs { display: flex; gap: 4px; background: var(--bg3); padding: 4px; border-radius: var(--radius); margin-bottom: 24px; }
.auth-tab {
  flex: 1; padding: 8px; border: none; background: transparent; border-radius: 7px;
  font-size: 13px; font-weight: 500; color: var(--text2); transition: all var(--transition);
}
.auth-tab.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

/* ─── FORM ELEMENTS ─────────────────────────────────────────────────────── */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--text2); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.05em; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 12px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,.15);
}
.form-group textarea { resize: vertical; min-height: 80px; }

/* ─── BUTTONS ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 18px; border-radius: var(--radius); border: 1px solid transparent;
  font-size: 13px; font-weight: 600; transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(99,102,241,.35); }
.btn-secondary { background: var(--surface2); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg3); }
.btn-danger { background: var(--red-bg); color: var(--red-text); border-color: var(--red); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-success { background: var(--green-bg); color: var(--green-text); border-color: var(--green); }
.btn-success:hover { background: var(--green); color: #fff; }
.btn-gold { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; border: none; }
.btn-gold:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(245,158,11,.4); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 13px 24px; font-size: 15px; }
.btn-full { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }
.btn-icon { padding: 8px; border-radius: var(--radius); background: var(--surface2); border: 1px solid var(--border); color: var(--text2); }
.btn-icon:hover { color: var(--text); background: var(--bg3); }

/* ─── APP LAYOUT ────────────────────────────────────────────────────────── */
#app { display: flex; height: 100vh; overflow: hidden; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  flex-shrink: 0;
  transition: transform var(--transition);
  z-index: 100;
}
.sidebar-logo {
  padding: 20px 20px 16px;
  font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.5px;
  border-bottom: 1px solid var(--border);
}
.sidebar-logo span { color: var(--accent); }
.sidebar-logo .version { font-size: 10px; font-weight: 500; color: var(--text3); margin-left: 6px; background: var(--bg3); padding: 2px 6px; border-radius: 999px; }
.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-section { margin-bottom: 6px; }
.nav-section-label { font-size: 10px; font-weight: 700; color: var(--text3); text-transform: uppercase; letter-spacing: .08em; padding: 8px 10px 4px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 8px;
  color: var(--text2); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all var(--transition);
  margin-bottom: 1px; border: none; background: none; width: 100%; text-align: left;
}
.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: var(--accent-bg); color: var(--accent-text); }
.nav-item .icon { font-size: 16px; width: 20px; text-align: center; }
.nav-item .badge {
  margin-left: auto; font-size: 10px; background: var(--accent); color: #fff;
  padding: 2px 6px; border-radius: 999px; font-weight: 700;
}
.sidebar-bottom { padding: 12px 10px; border-top: 1px solid var(--border); }
.user-info {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--radius);
  background: var(--surface2); margin-bottom: 8px;
}
.user-avatar { font-size: 22px; flex-shrink: 0; }
.user-name { font-size: 12px; font-weight: 600; color: var(--text); }
.user-level { font-size: 11px; color: var(--text2); }
.user-xp-bar { height: 3px; background: var(--border); border-radius: 2px; margin-top: 4px; overflow: hidden; }
.user-xp-fill { height: 100%; background: var(--accent); border-radius: 2px; transition: width 0.5s ease; }

/* Header */
.main-header {
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
}
.header-title { font-size: 16px; font-weight: 700; color: var(--text); }
.header-right { display: flex; align-items: center; gap: 8px; }

/* Main content */
.main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.content-area { flex: 1; overflow-y: auto; padding: 24px; }

/* ─── CARDS ─────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.card-title { font-size: 14px; font-weight: 700; color: var(--text); }
.card-subtitle { font-size: 12px; color: var(--text2); margin-top: 2px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow);
}
.stat-label { font-size: 11px; font-weight: 600; color: var(--text3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; }
.stat-value { font-size: 26px; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.stat-sub { font-size: 11px; color: var(--text2); margin-top: 2px; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }

/* ─── GAMIFICATION ──────────────────────────────────────────────────────── */
.xp-bar-container { background: var(--bg3); border-radius: 999px; height: 10px; overflow: hidden; margin: 8px 0; }
.xp-bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 999px; transition: width 1s ease; }
.level-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff;
  padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 700;
}
.streak-badge {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--amber-bg); color: var(--amber-text);
  padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700;
  border: 1px solid var(--amber);
}
.achievement-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; }
.achievement-item {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 8px; text-align: center;
  transition: transform var(--transition);
}
.achievement-item:hover { transform: translateY(-2px); }
.achievement-item.locked { opacity: .4; filter: grayscale(1); }
.achievement-icon { font-size: 28px; margin-bottom: 6px; }
.achievement-name { font-size: 10px; font-weight: 600; color: var(--text2); }
.xp-toast {
  position: fixed; bottom: 80px; right: 24px;
  background: var(--accent); color: #fff;
  padding: 10px 18px; border-radius: 999px;
  font-size: 13px; font-weight: 700;
  animation: slideUp 0.4s ease, fadeOut 0.4s ease 2.6s forwards;
  z-index: 9999; pointer-events: none;
}
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes fadeOut { to { opacity: 0; transform: translateY(-10px); } }

/* ─── PLAN BUILDER ──────────────────────────────────────────────────────── */
.plan-list { display: flex; flex-direction: column; gap: 10px; }
.plan-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px;
  display: flex; align-items: center; gap: 14px;
  transition: box-shadow var(--transition);
}
.plan-item:hover { box-shadow: var(--shadow-lg); }
.plan-item.active-plan { border-color: var(--green); background: var(--green-bg); }
.plan-item-info { flex: 1; }
.plan-item-name { font-size: 14px; font-weight: 700; color: var(--text); }
.plan-item-meta { font-size: 12px; color: var(--text2); margin-top: 3px; }
.plan-actions { display: flex; gap: 6px; }

.day-builder {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px; margin-bottom: 10px;
}
.day-builder-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.day-builder-name { font-size: 13px; font-weight: 600; color: var(--text); flex: 1; }
.exercise-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent-bg); color: var(--accent-text);
  border: 1px solid var(--accent); border-radius: 6px;
  padding: 4px 10px; font-size: 12px; font-weight: 500; margin: 3px;
}
.exercise-chip .remove { cursor: pointer; color: var(--text3); font-size: 14px; line-height: 1; }
.exercise-chip .remove:hover { color: var(--red); }

/* ─── WORKOUT TRACKER ───────────────────────────────────────────────────── */
.exercise-block {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px; margin-bottom: 12px;
}
.exercise-title { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.exercise-meta { font-size: 11px; color: var(--text3); margin-bottom: 12px; }
.set-row {
  display: grid; grid-template-columns: 32px 1fr 1fr 1fr auto;
  gap: 8px; align-items: center; padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.set-row:last-child { border-bottom: none; }
.set-num { font-size: 12px; color: var(--text3); font-weight: 600; text-align: center; }
.set-input {
  padding: 7px 10px; background: var(--surface2); border: 1px solid var(--border);
  border-radius: 7px; color: var(--text); text-align: center; width: 100%; outline: none;
}
.set-input:focus { border-color: var(--accent); }
.set-done { width: 32px; height: 32px; border-radius: 8px; border: 2px solid var(--border); background: none; color: var(--text3); font-size: 16px; display: flex; align-items: center; justify-content: center; transition: all var(--transition); }
.set-done.logged { background: var(--green); border-color: var(--green); color: #fff; }
.set-done:hover:not(.logged) { border-color: var(--green); color: var(--green); }

/* Rest Timer */
.rest-timer {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px 24px;
  box-shadow: var(--shadow-lg); z-index: 1000;
  display: flex; align-items: center; gap: 16px; min-width: 240px;
}
.rest-timer-ring {
  width: 56px; height: 56px; border-radius: 50%;
  border: 4px solid var(--border); border-top-color: var(--accent);
  animation: spin 1s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.rest-timer-time { font-size: 24px; font-weight: 800; color: var(--text); }
.rest-timer-label { font-size: 12px; color: var(--text2); }

/* Day Tabs */
.day-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 20px; }
.day-tab {
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface2);
  color: var(--text2); font-size: 13px; font-weight: 500; cursor: pointer;
  transition: all var(--transition);
}
.day-tab:hover { background: var(--bg3); }
.day-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ─── PREMIUM BANNER ────────────────────────────────────────────────────── */
.premium-banner {
  background: linear-gradient(135deg, #1e1b4b, #312e81);
  border-radius: var(--radius-lg); padding: 24px;
  margin-bottom: 20px; color: #fff; position: relative; overflow: hidden;
}
.premium-banner::after {
  content: '⭐'; position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  font-size: 60px; opacity: .15;
}
.premium-banner h3 { font-size: 18px; font-weight: 800; margin-bottom: 6px; }
.premium-banner p { font-size: 13px; opacity: .8; margin-bottom: 16px; }
.premium-features { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.premium-feature { font-size: 12px; background: rgba(255,255,255,.15); padding: 4px 10px; border-radius: 999px; }

/* ─── MODAL ─────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px; backdrop-filter: blur(4px);
  animation: fadeIn .15s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); width: 100%; max-width: 520px;
  max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg);
  animation: slideIn .2s ease;
}
@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-header { padding: 20px 20px 0; display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 16px; font-weight: 700; color: var(--text); }
.modal-body { padding: 20px; }
.modal-footer { padding: 0 20px 20px; display: flex; gap: 10px; justify-content: flex-end; }
.modal-close { background: none; border: none; font-size: 20px; color: var(--text2); cursor: pointer; padding: 4px; line-height: 1; }
.modal-close:hover { color: var(--text); }

/* ─── EXERCISE LIBRARY ──────────────────────────────────────────────────── */
.exercise-library-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.ex-card {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px; cursor: pointer;
  transition: all var(--transition); position: relative;
}
.ex-card:hover { border-color: var(--accent); background: var(--accent-bg); }
.ex-card.selected { border-color: var(--accent); background: var(--accent-bg); }
.ex-card.locked { opacity: .6; cursor: not-allowed; }
.ex-card-name { font-size: 12px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.ex-card-group { font-size: 11px; color: var(--text2); }
.ex-card-lock { position: absolute; top: 8px; right: 8px; font-size: 12px; }
.muscle-filter { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.muscle-tag {
  padding: 5px 12px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface2); font-size: 12px; font-weight: 500; cursor: pointer;
  color: var(--text2); transition: all var(--transition);
}
.muscle-tag:hover { background: var(--bg3); }
.muscle-tag.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ─── THEME TOGGLE ──────────────────────────────────────────────────────── */
.theme-toggle {
  width: 36px; height: 36px; border-radius: var(--radius);
  background: var(--surface2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 16px; transition: all var(--transition);
  color: var(--text2);
}
.theme-toggle:hover { background: var(--bg3); color: var(--text); }

/* ─── TOAST ─────────────────────────────────────────────────────────────── */
.toast-container { position: fixed; top: 16px; right: 16px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px;
  font-size: 13px; font-weight: 500; color: var(--text);
  box-shadow: var(--shadow-lg); min-width: 240px;
  animation: toastIn .3s ease;
  display: flex; align-items: center; gap: 8px;
}
.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--red); }
.toast.info { border-left: 3px solid var(--blue); }
@keyframes toastIn { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ─── BADGE PILL ────────────────────────────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 999px; font-size: 11px; font-weight: 600;
}
.pill-green { background: var(--green-bg); color: var(--green-text); border: 1px solid var(--green); }
.pill-red { background: var(--red-bg); color: var(--red-text); border: 1px solid var(--red); }
.pill-amber { background: var(--amber-bg); color: var(--amber-text); border: 1px solid var(--amber); }
.pill-blue { background: var(--blue-bg); color: var(--blue-text); border: 1px solid var(--blue); }
.pill-purple { background: var(--accent-bg); color: var(--accent-text); border: 1px solid var(--accent); }
.pill-gold { background: linear-gradient(135deg, #f59e0b20, #d9770620); color: var(--gold); border: 1px solid var(--gold); }

/* ─── MISC ──────────────────────────────────────────────────────────────── */
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.section-title { font-size: 16px; font-weight: 800; color: var(--text); }
.divider { height: 1px; background: var(--border); margin: 16px 0; }
.empty-state { text-align: center; padding: 48px 20px; color: var(--text3); }
.empty-icon { font-size: 40px; margin-bottom: 12px; }
.empty-text { font-size: 14px; font-weight: 600; color: var(--text2); margin-bottom: 6px; }
.empty-sub { font-size: 12px; color: var(--text3); margin-bottom: 16px; }
.loading { display: flex; align-items: center; justify-content: center; padding: 40px; color: var(--text3); gap: 10px; }
.spinner { width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.6s linear infinite; }
.pb-badge { display: inline-flex; align-items: center; gap: 3px; background: var(--gold); color: #fff; font-size: 10px; font-weight: 800; padding: 2px 7px; border-radius: 999px; }

/* Chart canvas */
.chart-container { position: relative; height: 200px; margin-top: 12px; }

/* Chat */
.chat-messages { height: 300px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding: 16px; background: var(--surface2); border-radius: var(--radius); margin-bottom: 12px; }
.chat-msg { max-width: 80%; padding: 10px 14px; border-radius: 14px; font-size: 13px; line-height: 1.5; }
.chat-msg.user { background: var(--accent); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.chat-msg.ai { background: var(--surface); border: 1px solid var(--border); color: var(--text); align-self: flex-start; border-bottom-left-radius: 4px; }
.chat-input-row { display: flex; gap: 8px; }
.chat-input-row input { flex: 1; }

/* ─── MOBILE ─────────────────────────────────────────────────────────────── */
.mobile-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--surface); border-top: 1px solid var(--border);
  padding: 8px 4px; z-index: 200;
  grid-template-columns: repeat(5, 1fr);
}
.mobile-nav-item {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 6px 4px; border-radius: var(--radius); border: none; background: none;
  color: var(--text3); font-size: 10px; font-weight: 500; cursor: pointer;
  transition: all var(--transition);
}
.mobile-nav-item .icon { font-size: 20px; }
.mobile-nav-item.active { color: var(--accent); }
.hamburger { display: none; width: 36px; height: 36px; border-radius: var(--radius); background: var(--surface2); border: 1px solid var(--border); align-items: center; justify-content: center; cursor: pointer; color: var(--text2); font-size: 18px; }

@media (max-width: 768px) {
  .sidebar { position: fixed; top: 0; bottom: 0; left: 0; transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .mobile-nav { display: grid; }
  .content-area { padding: 16px; padding-bottom: 80px; }
  .hamburger { display: flex; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .set-row { grid-template-columns: 28px 1fr 1fr auto; }
  .set-row .rpe-col { display: none; }
}

/* ─── TABLES ─────────────────────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { font-size: 11px; font-weight: 700; color: var(--text3); text-transform: uppercase; letter-spacing: .06em; padding: 8px 12px; border-bottom: 1px solid var(--border); text-align: left; }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--text); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface2); }

/* Sidebar overlay for mobile */
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 99; }
.sidebar-overlay.active { display: block; }