/* ═══════════════════════════════════════════════
   FITSTART v2 — IMPROVED UI
   Dark athletic, neon accent, animated elements
═══════════════════════════════════════════════ */
:root {
  --bg:        #0A0C12;
  --bg2:       #10131C;
  --bg3:       #181C28;
  --card:      #141720;
  --card2:     #1C2033;
  --border:    #22273A;
  --border2:   #2E3450;
  --accent:    #7C6FFF;
  --accent2:   #FF6B6B;
  --green:     #3DDFA0;
  --yellow:    #FFB547;
  --blue:      #4DA6FF;
  --text:      #E8EAF2;
  --text2:     #8891AA;
  --text3:     #3E4560;
  --radius:    16px;
  --radius-sm: 10px;
  --shadow:    0 4px 30px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 60px rgba(0,0,0,0.6);
  --glow:      0 0 30px rgba(124,111,255,0.15);
  --font:      'Space Grotesk', sans-serif;
  --font-disp: 'Syne', sans-serif;
  --sidebar-w: 250px;
  --trans:     all 0.22s cubic-bezier(0.4,0,0.2,1);
}

/* ─── RESET ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { opacity: 0.8; }
input, select, textarea, button { font-family: var(--font); }
.hidden { display: none !important; }

/* ─── SCROLLBAR ───────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ─── GLOBAL ANIMATIONS ──────────────────── */
@keyframes fadeUp   { from { opacity:0; transform:translateY(14px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn   { from { opacity:0; } to { opacity:1; } }
@keyframes pulse    { 0%,100% { transform:scale(1); } 50% { transform:scale(1.04); } }
@keyframes shimmer  { 0% { background-position:-200% 0; } 100% { background-position:200% 0; } }
@keyframes float    { 0%,100% { transform:translateY(0px); } 50% { transform:translateY(-8px); } }
@keyframes spin     { to { transform:rotate(360deg); } }
@keyframes slideIn  { from { transform:translateX(-100%); } to { transform:translateX(0); } }
@keyframes glow-pulse { 0%,100% { box-shadow:0 0 20px rgba(124,111,255,0.1); } 50% { box-shadow:0 0 40px rgba(124,111,255,0.3); } }
@keyframes bar-fill { from { width:0; } to { width:var(--w); } }
@keyframes count-up { from { opacity:0; transform:scale(0.7); } to { opacity:1; transform:scale(1); } }
@keyframes ring-spin { to { transform:rotate(360deg); } }

/* ═══════════════════════════════════════════
   AUTH OVERLAY
═══════════════════════════════════════════ */
.auth-overlay {
  position: fixed; inset: 0;
  display: flex;
  z-index: 1000;
  background: var(--bg);
}

.auth-card {
  width: 480px;
  min-width: 340px;
  background: var(--bg2);
  padding: 52px 48px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-right: 1px solid var(--border);
  position: relative;
}
.auth-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--blue), var(--green));
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 44px;
}
.brand-icon {
  font-size: 26px;
  filter: drop-shadow(0 0 8px rgba(124,111,255,0.6));
  animation: float 3s ease-in-out infinite;
}
.brand-name {
  font-family: var(--font-disp);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-panel { display: none; flex-direction: column; gap: 18px; }
.auth-panel.active { display: flex; animation: fadeUp 0.35s ease; }
.auth-panel h2 {
  font-family: var(--font-disp);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--text) 60%, var(--text2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.auth-sub { color: var(--text2); font-size: 14px; margin-top: -10px; }

.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group label { font-size: 12px; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: 0.6px; }
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text);
  font-size: 14px;
  transition: var(--trans);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(124,111,255,0.05);
  box-shadow: 0 0 0 3px rgba(124,111,255,0.12);
}
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }

.goal-picker {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.goal-option { cursor: pointer; }
.goal-option input[type="radio"] { display: none; }
.goal-option span {
  display: block;
  background: var(--bg3);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  transition: var(--trans);
}
.goal-option:hover span { border-color: var(--border2); }
.goal-option input:checked + span {
  border-color: var(--accent);
  background: rgba(124,111,255,0.12);
  color: var(--accent);
  box-shadow: 0 0 0 2px rgba(124,111,255,0.15);
}

.auth-error {
  background: rgba(255,107,107,0.08);
  border: 1px solid rgba(255,107,107,0.25);
  color: #FF8A8A;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
}
.auth-switch { font-size: 13px; color: var(--text2); text-align: center; }
.auth-switch a { font-weight: 600; }

.demo-hint { margin-top: 16px; padding-top: 20px; border-top: 1px solid var(--border); text-align: center; }
.btn-demo {
  background: none;
  border: 1px solid var(--border2);
  color: var(--text2);
  padding: 9px 22px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--trans);
}
.btn-demo:hover { border-color: var(--accent); color: var(--accent); background: rgba(124,111,255,0.05); }

/* Auth visual side */
.auth-visual {
  flex: 1;
  background: linear-gradient(135deg, #080A10 0%, #0F0C28 40%, #0A1520 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 60px;
}
.visual-content { position: relative; z-index: 2; max-width: 420px; }
.hero-stat-grid { display: flex; gap: 14px; margin-bottom: 44px; }
.hero-stat {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  backdrop-filter: blur(10px);
  transition: var(--trans);
}
.hero-stat:hover { transform: translateY(-3px); border-color: rgba(124,111,255,0.3); }
.hero-stat.accent { background: rgba(124,111,255,0.12); border-color: rgba(124,111,255,0.25); }
.hs-num { font-family: var(--font-disp); font-size: 30px; font-weight: 800; color: var(--text); }
.hs-label { font-size: 11px; color: var(--text2); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }

.visual-headline {
  font-family: var(--font-disp);
  font-size: clamp(44px, 5vw, 72px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 22px;
}
.visual-headline em { color: var(--accent); font-style: normal; }
.visual-sub { color: var(--text2); font-size: 16px; line-height: 1.65; margin-bottom: 32px; max-width: 340px; }
.visual-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.visual-tags span {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  padding: 7px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 500;
  transition: var(--trans);
}
.visual-tags span:hover { border-color: rgba(124,111,255,0.4); background: rgba(124,111,255,0.08); }

/* Animated bg orbs */
.auth-visual::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(124,111,255,0.12) 0%, transparent 65%);
  top: 20%; left: 30%;
  transform: translate(-50%,-50%);
  animation: pulse 6s ease-in-out infinite;
}
.auth-visual::after {
  content: '';
  position: absolute;
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(61,223,160,0.07) 0%, transparent 65%);
  bottom: 15%; right: 10%;
  animation: pulse 8s ease-in-out infinite 2s;
}

/* ═══════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════ */
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #5B50E0 100%);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 26px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--trans);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: var(--trans);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(124,111,255,0.35); }
.btn-primary:active { transform: translateY(0); }
.btn-primary.full-width { width: 100%; text-align: center; }

.btn-icon {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  width: 38px; height: 38px;
  border-radius: 50%;
  font-size: 17px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--trans);
}
.btn-icon:hover { border-color: var(--accent); color: var(--accent); background: rgba(124,111,255,0.08); }

.btn-checkin {
  background: linear-gradient(135deg, var(--green) 0%, #2DB880 100%);
  color: #071A10;
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px 26px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--trans);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-checkin:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(61,223,160,0.3); }
.btn-checkin.checked {
  background: rgba(61,223,160,0.1);
  color: var(--green);
  border: 1.5px solid rgba(61,223,160,0.3);
  box-shadow: none;
}
.checked-badge {
  font-size: 14px; color: var(--green); font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px;
  animation: fadeIn 0.3s ease;
}

/* ═══════════════════════════════════════════
   MAIN APP LAYOUT
═══════════════════════════════════════════ */
.app { display: flex; min-height: 100vh; }

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 26px 22px;
  border-bottom: 1px solid var(--border);
}

.sidebar-nav {
  flex: 1;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  color: var(--text2);
  font-size: 14px;
  font-weight: 500;
  transition: var(--trans);
  text-decoration: none;
  position: relative;
}
.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active {
  background: rgba(124,111,255,0.13);
  color: var(--accent);
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 3px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}
.nav-icon { font-size: 18px; width: 22px; text-align: center; flex-shrink: 0; }

.sidebar-footer {
  padding: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.user-chip {
  font-size: 13px;
  color: var(--text2);
  font-weight: 500;
  padding: 4px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.btn-logout {
  background: none;
  border: 1px solid var(--border);
  color: var(--text3);
  border-radius: var(--radius-sm);
  padding: 9px;
  font-size: 13px;
  cursor: pointer;
  transition: var(--trans);
  font-weight: 500;
}
.btn-logout:hover { border-color: var(--accent2); color: var(--accent2); background: rgba(255,107,107,0.05); }

/* MOBILE HEADER */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 58px;
  background: rgba(16,19,28,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 200;
}
.hamburger { background: none; border: none; cursor: pointer; display: flex; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--trans); display: block; }
.mobile-brand { font-family: var(--font-disp); font-weight: 800; font-size: 19px; }
.streak-badge {
  background: rgba(255,181,71,0.12);
  border: 1px solid rgba(255,181,71,0.25);
  color: var(--yellow);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
}

/* MAIN CONTENT */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 36px 40px;
  max-width: 1200px;
  min-height: 100vh;
}

/* PAGES */
.page { display: none; }
.page.active { display: block; animation: fadeUp 0.3s ease; }

/* PAGE HEADER */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
  gap: 16px;
}
.page-header h1 {
  font-family: var(--font-disp);
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--text) 0%, var(--text2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-sub { color: var(--text2); font-size: 14px; margin-top: 5px; }

.section-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin: 32px 0 16px;
}

/* ═══════════════════════════════════════════
   DASHBOARD
═══════════════════════════════════════════ */
.today-card {
  background: linear-gradient(135deg, #14172200 0%, #1A1545 100%);
  border: 1px solid rgba(124,111,255,0.2);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 26px;
  position: relative;
  overflow: hidden;
  animation: glow-pulse 4s ease-in-out infinite;
}
.today-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,111,255,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.today-card-inner { flex: 1; position: relative; z-index: 1; }
.today-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.today-label::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
.today-card-inner h2 {
  font-family: var(--font-disp);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}
.today-card-inner p { color: var(--text2); font-size: 14px; margin-bottom: 18px; }

.exercise-preview { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 22px; }
.ex-chip {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 5px 13px;
  font-size: 12px;
  color: var(--text2);
  transition: var(--trans);
  cursor: pointer;
}
.ex-chip:hover { border-color: var(--accent); color: var(--accent); background: rgba(124,111,255,0.08); }

.today-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* Animated dumbbell art */
.today-card-art {
  position: relative;
  width: 110px; height: 110px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-art-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(124,111,255,0.2);
  animation: ring-spin 8s linear infinite;
}
.card-art-ring::before {
  content: '';
  position: absolute;
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  top: -5px; left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--accent);
}
.card-art-ring2 {
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  border: 1px solid rgba(124,111,255,0.1);
  animation: ring-spin 6s linear infinite reverse;
}
.card-art-dumbbell {
  font-size: 40px;
  animation: float 3s ease-in-out infinite;
  filter: drop-shadow(0 0 12px rgba(124,111,255,0.4));
}

/* Streak display */
.streak-display {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,181,71,0.08);
  border: 1px solid rgba(255,181,71,0.18);
  border-radius: var(--radius);
  padding: 14px 22px;
}
.streak-fire { font-size: 26px; animation: float 2.5s ease-in-out infinite; }
#streakCount {
  font-family: var(--font-disp);
  font-size: 32px;
  font-weight: 800;
  color: var(--yellow);
  animation: count-up 0.6s ease;
}
.streak-label { font-size: 12px; color: var(--text2); font-weight: 500; }

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 14px;
  margin-bottom: 30px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  text-align: center;
  transition: var(--trans);
  cursor: default;
  position: relative;
  overflow: hidden;
}
.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  transform: scaleX(0);
  transition: var(--trans);
}
.stat-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(124,111,255,0.1); }
.stat-card:hover::after { transform: scaleX(1); }
.stat-icon { font-size: 24px; filter: drop-shadow(0 2px 6px rgba(0,0,0,0.3)); }
.stat-value { font-family: var(--font-disp); font-size: 28px; font-weight: 800; color: var(--text); animation: count-up 0.5s ease; }
.stat-label { font-size: 11px; color: var(--text2); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }

/* Goals mini */
.goals-mini { display: flex; flex-direction: column; gap: 10px; margin-bottom: 30px; }
.goal-mini-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  transition: var(--trans);
}
.goal-mini-item:hover { border-color: var(--border2); }
.goal-mini-header { display: flex; justify-content: space-between; margin-bottom: 10px; }
.goal-mini-name { font-size: 13px; font-weight: 600; }
.goal-mini-pct { font-size: 13px; color: var(--accent); font-weight: 700; }
.goal-mini-bar { height: 5px; background: var(--bg3); border-radius: 3px; overflow: hidden; }
.goal-mini-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1s cubic-bezier(0.4,0,0.2,1);
  animation: bar-fill 1.2s cubic-bezier(0.4,0,0.2,1);
}
.empty-state-small { font-size: 13px; color: var(--text3); padding: 14px 0; }

/* Tips grid */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 30px;
}
.tip-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  border-left: 3px solid var(--tip-color, var(--accent));
  transition: var(--trans);
  position: relative;
  overflow: hidden;
}
.tip-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  background: radial-gradient(circle, var(--tip-color, var(--accent)) 0%, transparent 70%);
  opacity: 0.05;
  transition: var(--trans);
}
.tip-card:hover { transform: translateY(-3px); border-color: var(--tip-color, var(--accent)); box-shadow: 0 8px 30px rgba(0,0,0,0.2); }
.tip-card:hover::before { opacity: 0.1; }
.tip-emoji { font-size: 26px; margin-bottom: 12px; }
.tip-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 7px; }
.tip-card p { font-size: 13px; color: var(--text2); line-height: 1.6; }

/* Video embed */
.video-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 30px;
}
.video-container iframe { width: 100%; aspect-ratio: 16/9; display: block; }
.video-caption {
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text2);
  border-top: 1px solid var(--border);
}

/* ═══════════════════════════════════════════
   SCHEDULE PAGE
═══════════════════════════════════════════ */
.week-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}
.day-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 14px;
  cursor: pointer;
  transition: var(--trans);
  min-height: 170px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
}
.day-card:not(.rest-day):hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(124,111,255,0.12);
}
.day-card.today {
  border-color: rgba(124,111,255,0.4);
  background: linear-gradient(135deg, var(--card) 0%, rgba(124,111,255,0.05) 100%);
}
.day-card.today::after {
  content: 'TODAY';
  position: absolute;
  top: 0; right: 0;
  background: var(--accent);
  color: #fff;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 0 var(--radius) 0 var(--radius-sm);
}
.day-card.rest-day { opacity: 0.55; cursor: default; }
.day-card.rest-day:hover { transform: none; border-color: var(--border); box-shadow: none; }
.day-card.attended { border-color: rgba(61,223,160,0.35) !important; background: rgba(61,223,160,0.04); }

.day-name { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text3); }
.day-label { font-size: 13px; font-weight: 700; color: var(--text); line-height: 1.3; }
.day-focus { font-size: 11px; color: var(--text3); line-height: 1.45; flex: 1; }
.day-rest-label { font-size: 11px; color: var(--text3); }
.day-attended-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 700;
  color: var(--green);
  background: rgba(61,223,160,0.1);
  padding: 3px 9px; border-radius: 20px; width: fit-content;
}
.day-ex-count { font-size: 11px; color: var(--accent); font-weight: 700; }
.day-video-hint { font-size: 10px; color: var(--text3); display: flex; align-items: center; gap: 4px; }
.day-video-hint::before { content: '▶'; font-size: 8px; }

/* ═══════════════════════════════════════════
   MODALS
═══════════════════════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.25s ease;
}
/* Exercise modal wider */
#exerciseModal .modal { max-width: 660px; }

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-header h3 {
  font-family: var(--font-disp);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
}
.modal-close {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text2); font-size: 18px;
  width: 32px; height: 32px;
  border-radius: 8px;
  cursor: pointer; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: var(--trans);
}
.modal-close:hover { color: var(--text); border-color: var(--border2); }
.modal-focus {
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: rgba(124,111,255,0.08);
  border: 1px solid rgba(124,111,255,0.15);
  border-radius: 20px;
  padding: 5px 14px;
  display: inline-block;
  width: fit-content;
}
.modal-footer { border-top: 1px solid var(--border); padding-top: 18px; }
.modal-checkin { width: 100%; justify-content: center; font-size: 15px; padding: 14px; }

/* Exercise list */
.exercise-list { display: flex; flex-direction: column; gap: 10px; }
.ex-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--trans);
}
.ex-item:hover { border-color: var(--border2); }
.ex-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 16px;
  cursor: pointer;
  gap: 12px;
}
.ex-item-left { flex: 1; }
.ex-item-name { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.ex-item-note { font-size: 12px; color: var(--text3); line-height: 1.4; }
.ex-item-meta { text-align: right; flex-shrink: 0; }
.ex-sets { font-size: 14px; font-weight: 700; color: var(--accent); }
.ex-rest { font-size: 11px; color: var(--text3); margin-top: 3px; }

/* Video toggle button */
.ex-gif-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(124,111,255,0.1);
  border: 1px solid rgba(124,111,255,0.25);
  color: var(--accent);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--trans);
  margin: 0 16px 14px;
}
.ex-gif-btn:hover { background: rgba(124,111,255,0.18); border-color: rgba(124,111,255,0.45); }
.ex-gif-btn.active { background: rgba(255,107,107,0.12); border-color: rgba(255,107,107,0.3); color: var(--accent2); }

/* GIF expandable panel */
.ex-gif-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4,0,0.2,1);
  margin: 0 16px;
}
.ex-gif-panel.open {
  max-height: 420px;
}

.ex-gif-wrap {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}
.ex-gif-img {
  width: 100%;
  max-height: 300px;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-sm);
  animation: fadeIn 0.4s ease;
}
.ex-gif-label {
  font-size: 12px;
  color: var(--text2);
  text-align: center;
  padding: 8px 0 4px;
  font-weight: 500;
}
.ex-gif-close {
  display: block;
  margin: 8px auto 14px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text3);
  border-radius: 20px;
  padding: 4px 16px;
  font-size: 12px;
  cursor: pointer;
  transition: var(--trans);
}
.ex-gif-close:hover { border-color: var(--accent2); color: var(--accent2); }

/* Loading spinner inside gif wrap */
.ex-gif-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px;
  color: var(--text3);
  font-size: 13px;
}
.gif-spinner {
  width: 28px; height: 28px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Fallback when no GIF available */
.ex-gif-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 36px;
  color: var(--text2);
  text-align: center;
}

/* ═══════════════════════════════════════════
   CALENDAR PAGE
═══════════════════════════════════════════ */
.checkin-bar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  gap: 16px;
  flex-wrap: wrap;
}
.checkin-info strong { display: block; font-size: 15px; margin-bottom: 3px; }
.checkin-info span { font-size: 13px; color: var(--text2); }
.checkin-controls { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.checkin-controls input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: var(--trans);
}
.checkin-controls input:focus { border-color: var(--accent); }

.cal-nav { display: flex; align-items: center; gap: 12px; }
#calMonthLabel { font-size: 15px; font-weight: 700; min-width: 130px; text-align: center; }

.calendar-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 22px;
}
.cal-days-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.cal-days-header span {
  text-align: center;
  padding: 13px 0;
  font-size: 11px;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--border);
}
.cal-cell {
  background: var(--card);
  min-height: 64px;
  padding: 9px;
  position: relative;
  cursor: pointer;
  transition: var(--trans);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.cal-cell:hover { background: var(--card2); }
.cal-cell.empty { background: var(--bg2); cursor: default; }
.cal-cell.today-cell { background: rgba(124,111,255,0.07); }
.cal-cell.attended-cell { background: rgba(61,223,160,0.06); }
.cal-cell .cell-num { font-size: 13px; font-weight: 600; color: var(--text2); }
.cal-cell.today-cell .cell-num { color: var(--accent); font-weight: 800; font-size: 14px; }
.cal-cell .cell-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 6px rgba(61,223,160,0.5); }
.cal-cell .cell-dur { font-size: 10px; color: var(--green); font-weight: 700; }

.cal-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.cal-sum-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
  transition: var(--trans);
}
.cal-sum-item:hover { border-color: var(--green); }
.cal-sum-num {
  display: block;
  font-family: var(--font-disp);
  font-size: 40px;
  font-weight: 800;
  color: var(--green);
  margin-bottom: 6px;
  animation: count-up 0.6s ease;
}
.cal-sum-label { font-size: 13px; color: var(--text2); }

/* ═══════════════════════════════════════════
   PROGRESS PAGE
═══════════════════════════════════════════ */
.progress-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}
.prog-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: var(--trans);
}
.prog-card:hover { border-color: var(--border2); transform: translateY(-2px); }
.prog-icon { font-size: 24px; margin-bottom: 2px; }
.prog-label { font-size: 11px; color: var(--text2); font-weight: 600; text-transform: uppercase; letter-spacing: 0.6px; }
.prog-value { font-family: var(--font-disp); font-size: 26px; font-weight: 800; color: var(--text); }
.prog-change { font-size: 12px; font-weight: 700; }
.prog-change.pos { color: var(--green); }
.prog-change.neg { color: var(--accent2); }

.chart-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 28px;
}
.chart-controls { display: flex; gap: 8px; margin-bottom: 22px; flex-wrap: wrap; }
.chart-tab {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--trans);
}
.chart-tab.active, .chart-tab:hover {
  background: rgba(124,111,255,0.13);
  border-color: var(--accent);
  color: var(--accent);
}
.chart-canvas-wrap { position: relative; height: 250px; }
.chart-canvas-wrap canvas { height: 250px !important; }
.chart-empty {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--text3);
}

.progress-table-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.progress-table { width: 100%; border-collapse: collapse; }
.progress-table th {
  background: var(--bg3);
  padding: 13px 18px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}
.progress-table td {
  padding: 13px 18px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
}
.progress-table tr:hover td { background: var(--bg3); }

.empty-state {
  padding: 56px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.empty-state span { font-size: 40px; animation: float 3s ease-in-out infinite; }
.empty-state p { color: var(--text2); font-size: 14px; }

/* ═══════════════════════════════════════════
   GOALS PAGE
═══════════════════════════════════════════ */
.goal-types-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 10px;
}
.goal-type-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 18px;
  text-align: center;
  transition: var(--trans);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.goal-type-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  transition: var(--trans);
  transform: scaleX(0);
}
.goal-type-card.muscle::after  { background: var(--accent); }
.goal-type-card.fat::after     { background: var(--accent2); }
.goal-type-card.weight::after  { background: var(--green); }
.goal-type-card.streak::after  { background: var(--yellow); }
.goal-type-card:hover { transform: translateY(-3px); }
.goal-type-card:hover::after   { transform: scaleX(1); }
.goal-type-card.muscle:hover   { border-color: rgba(124,111,255,0.4); }
.goal-type-card.fat:hover      { border-color: rgba(255,107,107,0.4); }
.goal-type-card.weight:hover   { border-color: rgba(61,223,160,0.4); }
.goal-type-card.streak:hover   { border-color: rgba(255,181,71,0.4); }
.goal-type-icon { font-size: 30px; margin-bottom: 12px; animation: float 3s ease-in-out infinite; }
.goal-type-card h4 { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.goal-type-card p { font-size: 12px; color: var(--text2); line-height: 1.4; }

.goals-list { display: flex; flex-direction: column; gap: 12px; }
.goal-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: var(--trans);
}
.goal-item:hover { border-color: var(--border2); }
.goal-item.achieved { border-color: rgba(61,223,160,0.3); background: rgba(61,223,160,0.03); }
.goal-item-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.goal-item-name { font-size: 15px; font-weight: 700; }
.goal-item-badge {
  font-size: 11px; font-weight: 700;
  padding: 4px 12px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.goal-item-badge.active { background: rgba(124,111,255,0.13); color: var(--accent); }
.goal-item-badge.done   { background: rgba(61,223,160,0.13); color: var(--green); }
.goal-progress-bar { height: 7px; background: var(--bg3); border-radius: 4px; overflow: hidden; margin-bottom: 10px; }
.goal-progress-fill { height: 100%; border-radius: 4px; transition: width 1s cubic-bezier(0.4,0,0.2,1); }
.goal-item-nums { display: flex; justify-content: space-between; font-size: 12px; color: var(--text2); }
.goal-deadline { font-size: 12px; color: var(--text3); margin-top: 10px; }

/* ═══════════════════════════════════════════
   PROGRAMS PAGE
═══════════════════════════════════════════ */
.programs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.program-card {
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  cursor: pointer;
  transition: var(--trans);
  position: relative;
}
.program-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(124,111,255,0.1); }
.program-card.active-prog { border-color: var(--accent); background: rgba(124,111,255,0.04); }
.prog-active-tag {
  position: absolute; top: 18px; right: 18px;
  background: linear-gradient(135deg, var(--accent), #5B50E0);
  color: #fff;
  font-size: 10px; font-weight: 700;
  padding: 4px 12px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.prog-goal-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 20px; padding: 5px 14px;
  font-size: 12px; font-weight: 600; color: var(--text2);
  margin-bottom: 16px;
}
.program-card h3 { font-family: var(--font-disp); font-size: 18px; font-weight: 800; margin-bottom: 9px; letter-spacing: -0.3px; }
.program-card p { font-size: 13px; color: var(--text2); line-height: 1.55; margin-bottom: 18px; }
.prog-meta { display: flex; gap: 16px; flex-wrap: wrap; }
.prog-meta-item { font-size: 12px; color: var(--text3); display: flex; align-items: center; gap: 5px; }
.prog-select-btn {
  display: block; width: 100%; margin-top: 18px;
  background: none; border: 1px solid var(--border);
  color: var(--text2); border-radius: var(--radius-sm);
  padding: 11px; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: var(--trans);
}
.prog-select-btn:hover, .program-card.active-prog .prog-select-btn {
  background: linear-gradient(135deg, var(--accent), #5B50E0);
  border-color: var(--accent); color: #fff;
}

/* ═══════════════════════════════════════════
   TOAST
═══════════════════════════════════════════ */
.toast {
  position: fixed;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  background: var(--card2);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 13px 26px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.3s ease;
  white-space: nowrap;
}
.toast.success { border-color: rgba(61,223,160,0.4); color: var(--green); }
.toast.error   { border-color: rgba(255,107,107,0.4); color: var(--accent2); }

.loading-spinner { text-align: center; color: var(--text3); padding: 48px; font-size: 14px; }
.loading-spinner::after {
  content: '';
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 10px;
  vertical-align: middle;
}

/* ═══════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════ */
@media (max-width: 1100px) {
  .week-grid { grid-template-columns: repeat(4, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .progress-summary { grid-template-columns: repeat(2, 1fr); }
  .goal-types-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .auth-visual { display: none; }
  .auth-card { width: 100%; border-right: none; padding: 40px 28px; }
  .sidebar { transform: translateX(-100%); width: 270px; z-index: 300; }
  .sidebar.open { transform: translateX(0); box-shadow: 20px 0 60px rgba(0,0,0,0.5); }
  .mobile-header { display: flex; }
  .main-content { margin-left: 0; padding: 84px 18px 28px; }
  .week-grid { grid-template-columns: repeat(2, 1fr); }
  .programs-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; }
  .checkin-bar { flex-direction: column; align-items: flex-start; }
  .today-card-art { display: none; }
}
@media (max-width: 520px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .progress-summary { grid-template-columns: 1fr 1fr; }
  .goal-types-grid { grid-template-columns: 1fr 1fr; }
  .form-row { flex-direction: column; }
  .main-content { padding: 80px 14px 24px; }
}

.ex-svg-wrap {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  padding: 8px;
}
.ex-real-gif {
  width: 100%;
  max-width: 320px;
  max-height: 320px;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
  animation: fadeIn 0.4s ease;
  object-fit: contain;
}
.ex-gif-missing {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  text-align: center;
  gap: 6px;
  width: 100%;
}
.gif-missing-icon { font-size: 40px; opacity: 0.6; margin-bottom: 6px; }
.gif-missing-title { font-size: 14px; font-weight: 700; color: var(--text2); }
.gif-missing-path {
  font-family: monospace;
  font-size: 12px;
  color: var(--accent);
  background: var(--bg3);
  padding: 4px 10px;
  border-radius: 6px;
  margin: 4px 0;
  word-break: break-all;
}
.gif-missing-hint {
  font-size: 11px;
  color: var(--text3);
  line-height: 1.5;
  margin-top: 4px;
}
.gif-missing-hint code {
  background: var(--bg3);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--green);
}