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

:root {
  --bg: #0a0a0b;
  --bg-card: #141416;
  --bg-card-hover: #1a1a1e;
  --border: #2a2a2e;
  --text: #f0f0f0;
  --text-dim: #888;
  --text-muted: #555;
  --accent: #ff4d4d;
  --accent-glow: rgba(255, 77, 77, 0.3);
  --green: #22c55e;
  --green-glow: rgba(34, 197, 94, 0.3);
  --orange: #f59e0b;
  --blue: #3b82f6;
  --purple: #a855f7;
}

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

body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(255, 77, 77, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  position: relative;
  z-index: 1;
}

/* LOGIN */
#login-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
  padding: 40px 20px;
}

.logo-section { margin-bottom: 60px; }

.logo-icon {
  font-size: 72px;
  margin-bottom: 20px;
  display: block;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.logo-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -2px;
  background: linear-gradient(135deg, #ff4d4d, #ff8c00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.logo-subtitle {
  font-size: 18px;
  color: var(--text-dim);
  font-weight: 300;
  letter-spacing: 4px;
  text-transform: uppercase;
}

.manifesto {
  max-width: 500px;
  margin-bottom: 50px;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-card);
}

.manifesto p { font-size: 15px; line-height: 1.8; color: var(--text-dim); font-weight: 300; }
.manifesto strong { color: var(--accent); font-weight: 600; }

.google-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  background: #fff;
  color: #333;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.google-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.4); }
.google-btn svg { width: 20px; height: 20px; }

/* DASHBOARD */
#dashboard { display: none; padding-bottom: 40px; }

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--border);
}

.header-left { display: flex; align-items: center; gap: 16px; }

.header-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 24px;
  font-weight: 700;
  background: linear-gradient(135deg, #ff4d4d, #ff8c00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.user-section { display: flex; align-items: center; gap: 12px; }

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--border);
}

.user-name { font-size: 14px; color: var(--text-dim); }

.logout-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.logout-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Streak */
.streak-banner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  margin-bottom: 24px;
  text-align: center;
  overflow: hidden;
}

.streak-banner.on-fire {
  border-color: rgba(255, 77, 77, 0.3);
  background: linear-gradient(135deg, rgba(255, 77, 77, 0.05), rgba(255, 140, 0, 0.05));
}

.streak-banner.dead { border-color: rgba(255, 77, 77, 0.2); }

.streak-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 80px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
}

.streak-banner.on-fire .streak-number {
  background: linear-gradient(135deg, #ff4d4d, #ff8c00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.streak-banner.dead .streak-number { color: var(--text-muted); }

.streak-label {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.streak-message { font-size: 16px; color: var(--text-dim); font-weight: 300; }

/* Yesterday */
.yesterday-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.yesterday-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }

.yesterday-stat {
  text-align: center;
  padding: 16px 8px;
  background: var(--bg);
  border-radius: 12px;
  border: 1px solid var(--border);
}

.yesterday-stat .value { font-family: 'Space Grotesk', sans-serif; font-size: 28px; font-weight: 700; }
.yesterday-stat .label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }
.yesterday-stat .target { font-size: 12px; color: var(--green); margin-top: 6px; font-weight: 500; }

/* Today */
.today-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
}

.today-section.completed {
  border-color: rgba(34, 197, 94, 0.3);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.03), var(--bg-card));
}

.exercise-inputs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 24px; }
.exercise-input-group.full-width { grid-column: 1 / -1; }

.exercise-input-group {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  transition: border-color 0.2s;
}

.exercise-input-group:focus-within {
  border-color: rgba(255, 77, 77, 0.3);
}

.exercise-input-group label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  margin-bottom: 10px;
  font-weight: 600;
}

.exercise-input-group .stepper { border: none; background: var(--bg-card); }

.exercise-input-group input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 22px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  text-align: center;
  outline: none;
  transition: all 0.2s;
}

.exercise-input-group input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.exercise-input-group input::placeholder { color: var(--text-muted); font-size: 14px; font-weight: 400; }

.stepper .exercise-input-group input,
.stepper input { background: transparent; border-radius: 0; }
.stepper input:focus { box-shadow: none; border-color: var(--border); background: rgba(255,255,255,0.02); }

/* Hide native number spinners */
.exercise-input-group input[type=number]::-webkit-inner-spin-button,
.exercise-input-group input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.exercise-input-group input[type=number] { -moz-appearance: textfield; }

/* Stepper */
.stepper { display: flex; align-items: stretch; gap: 0; border-radius: 14px; overflow: hidden; border: 1px solid var(--border); background: var(--bg); }
.stepper input { flex: 1; border: none; border-left: 1px solid var(--border); border-right: 1px solid var(--border); border-radius: 0; min-width: 0; }

.step-btn {
  width: 56px;
  min-height: 52px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 15px;
  font-weight: 700;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  user-select: none;
  -webkit-user-select: none;
  letter-spacing: -0.5px;
  position: relative;
}

.step-btn::after {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: 8px;
  transition: background 0.15s;
}

.step-btn:hover::after { background: rgba(255,255,255,0.04); }
.step-btn:active { transform: scale(0.95); }
.step-btn:active::after { background: rgba(255,255,255,0.08); }

.step-btn.minus { color: #ff6b6b; }
.step-btn.minus:hover { color: #ff4d4d; background: rgba(255,77,77,0.06); }
.step-btn.plus { color: #4ade80; }
.step-btn.plus:hover { color: #22c55e; background: rgba(34,197,94,0.06); }

.exercise-input-group .hint { font-size: 11px; color: var(--text-muted); margin-top: 6px; text-align: center; }
.exercise-input-group .hint.up { color: var(--green); }

.save-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, #ff4d4d, #ff6b35);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.save-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 25px var(--accent-glow); }
.save-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.save-btn.saved { background: linear-gradient(135deg, #22c55e, #16a34a); }

/* Motivation */
.motivation-banner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
  text-align: center;
}

.motivation-banner .quote { font-size: 16px; font-style: italic; color: var(--text-dim); line-height: 1.6; }
.motivation-banner .quote strong { color: var(--accent); font-style: normal; }

/* History */
.history-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
}

.history-row {
  display: grid;
  grid-template-columns: 100px 1fr 1fr 1fr 1fr 1fr;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  align-items: center;
}

.history-row:last-child { border-bottom: none; }
.history-row.header { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); font-weight: 600; }
.history-row .date { color: var(--text-dim); font-size: 13px; }
.history-row .val { text-align: center; font-family: 'Space Grotesk', sans-serif; font-weight: 600; }

.history-empty { text-align: center; color: var(--text-muted); padding: 40px 0; font-size: 14px; }

/* Week dots */
.week-dots { display: flex; gap: 6px; justify-content: center; margin-top: 16px; }

.week-dot {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--text-muted);
}

.week-dot.done { background: rgba(34, 197, 94, 0.15); border-color: rgba(34, 197, 94, 0.3); color: var(--green); }
.week-dot.missed { background: rgba(255, 77, 77, 0.1); border-color: rgba(255, 77, 77, 0.2); color: var(--accent); }
.week-dot.today { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.week-dot.future { opacity: 0.3; }

/* Loading */
.loading-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.4s;
}

.loading-overlay.hidden { opacity: 0; pointer-events: none; }

.loader {
  width: 40px; height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 14px;
  color: var(--text);
  z-index: 200;
  transition: transform 0.4s ease;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* Reset warning */
.reset-warning {
  background: linear-gradient(135deg, rgba(255, 77, 77, 0.08), rgba(255, 77, 77, 0.03));
  border: 1px solid rgba(255, 77, 77, 0.25);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
  text-align: center;
}

.reset-warning .skull { font-size: 36px; margin-bottom: 8px; }
.reset-warning .msg { font-size: 15px; color: var(--accent); font-weight: 500; line-height: 1.6; }

#confetti-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 300;
}

/* Responsive */
@media (max-width: 600px) {
  .logo-title { font-size: 36px; }
  .streak-number { font-size: 60px; }
  .yesterday-grid { grid-template-columns: repeat(2, 1fr); }
  .yesterday-stat:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .exercise-inputs { grid-template-columns: 1fr; }
  .history-row { font-size: 11px; grid-template-columns: 70px 1fr 1fr 1fr 1fr 1fr; }
  .header { flex-direction: column; gap: 12px; }
  .user-name { display: none; }
}