/* ═══════════════════════════════════════════════════════════════════════════
   Kaizen AI – Component Design System
   All classes prefixed with kz- to avoid clashes with existing styles.
   Glassmorphism, animated progress bars, badges, stat boxes, toggles.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Keyframe Animations ─────────────────────────────────────────────────── */
@keyframes kz-pulse-glow {
  0%, 100% { box-shadow: 0 0 8px rgba(212, 120, 140, 0.3); }
  50%       { box-shadow: 0 0 22px rgba(212, 120, 140, 0.7); }
}

@keyframes kz-bar-fill {
  from { width: 0; }
}

@keyframes kz-slide-down {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes kz-fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes kz-xp-pulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.06); }
  100% { transform: scale(1); }
}

@keyframes kz-flame {
  0%, 100% { transform: scaleY(1) rotate(-2deg); }
  50%       { transform: scaleY(1.1) rotate(2deg); }
}

@keyframes kz-shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* ── Glassmorphism Card ──────────────────────────────────────────────────── */
.kz-glass-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(212, 120, 140, 0.25);
  border-radius: 18px;
  padding: 20px 22px;
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transition: all 0.25s ease;
  animation: kz-fade-in 0.45s ease-out both;
}

.kz-glass-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 8px 32px rgba(212, 120, 140, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  border-color: rgba(212, 120, 140, 0.5);
}

[data-theme="dark"] .kz-glass-card {
  background: rgba(30, 20, 35, 0.7);
  border-color: rgba(212, 120, 140, 0.3);
}

/* ── Stat Box ────────────────────────────────────────────────────────────── */
.kz-stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 18px 14px;
  border-radius: 16px;
  border: 1.5px solid var(--border-color);
  background: var(--bg-card);
  transition: all 0.25s ease;
  animation: kz-fade-in 0.4s ease-out both;
}

.kz-stat-box:hover {
  border-color: var(--accent);
  box-shadow: 0 0 18px rgba(212, 120, 140, 0.25);
  transform: translateY(-2px);
}

.kz-stat-value {
  font-size: 2em;
  font-weight: bold;
  color: var(--accent);
  line-height: 1.1;
  animation: kz-xp-pulse 3s ease-in-out infinite;
}

.kz-stat-label {
  font-size: 0.78em;
  color: var(--text-muted);
  margin-top: 4px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ── XP Progress Bar ─────────────────────────────────────────────────────── */
.kz-xp-bar-wrap {
  background: var(--bg-primary);
  border: 1.5px solid var(--border-color);
  border-radius: 999px;
  height: 14px;
  overflow: hidden;
  position: relative;
}

.kz-xp-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #d4788c, #f090a8, #d4788c);
  background-size: 200% 100%;
  animation: kz-bar-fill 1.2s cubic-bezier(0.22, 1, 0.36, 1) both,
             kz-shimmer 2.5s linear infinite 1.2s;
  position: relative;
}

.kz-xp-bar-fill::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 8px;
  background: rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  filter: blur(3px);
}

/* ── Level Badge ─────────────────────────────────────────────────────────── */
.kz-level-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #d4788c, #b85a6e);
  color: #fff;
  font-size: 0.85em;
  font-weight: bold;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 10px rgba(212, 120, 140, 0.4);
  animation: kz-pulse-glow 3s ease-in-out infinite;
}

/* ── Streak Badge ────────────────────────────────────────────────────────── */
.kz-streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff6b35, #f93d0a);
  color: #fff;
  font-size: 0.82em;
  font-weight: bold;
}

.kz-streak-flame {
  display: inline-block;
  animation: kz-flame 0.8s ease-in-out infinite;
}

/* ── Toggle Switch ───────────────────────────────────────────────────────── */
.kz-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85em;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.kz-toggle {
  position: relative;
  width: 42px;
  height: 24px;
  flex-shrink: 0;
}

.kz-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.kz-toggle-slider {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--border-color);
  transition: background 0.3s;
  cursor: pointer;
}

.kz-toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px; top: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.kz-toggle input:checked + .kz-toggle-slider {
  background: var(--accent);
}

.kz-toggle input:checked + .kz-toggle-slider::before {
  transform: translateX(18px);
}

/* ── Gamification Panel ──────────────────────────────────────────────────── */
#kz-gamification-panel {
  animation: kz-slide-down 0.4s cubic-bezier(0.22, 1, 0.36, 1) both;
  border-radius: 18px;
  border: 1.5px solid rgba(212, 120, 140, 0.3);
  background: var(--bg-card);
  padding: 20px 24px;
  margin: 16px 0;
  box-shadow: 0 6px 30px rgba(212, 120, 140, 0.15);
}

[data-theme="dark"] #kz-gamification-panel {
  background: rgba(20, 14, 25, 0.9);
  border-color: rgba(212, 120, 140, 0.4);
  box-shadow: 0 6px 30px rgba(212, 120, 140, 0.25);
}

.kz-gamify-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.kz-gamify-title {
  font-size: 1em;
  font-weight: bold;
  color: var(--accent-dark);
  letter-spacing: 0.5px;
}

.kz-gamify-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.kz-xp-section {
  margin-top: 12px;
}

.kz-xp-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 0.8em;
  color: var(--text-muted);
}

.kz-habit-rank-list {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.kz-habit-rank-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85em;
  color: var(--text-secondary);
}

.kz-rank-num {
  font-weight: bold;
  color: var(--accent);
  width: 18px;
  text-align: right;
}

.kz-rank-bar-wrap {
  flex: 1;
  background: var(--bg-primary);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
  border: 1px solid var(--border-light);
}

.kz-rank-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #d4788c, #f090a8);
  animation: kz-bar-fill 1s ease both;
}

/* ── Insights Panel ──────────────────────────────────────────────────────── */
#kz-insights-panel {
  border-radius: 16px;
  border: 1.5px solid rgba(212, 120, 140, 0.2);
  background: var(--bg-card);
  padding: 18px 20px;
  margin-top: 14px;
  animation: kz-fade-in 0.5s ease both;
}

.kz-insight-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  margin: 4px;
  border-radius: 999px;
  background: var(--bg-hover);
  border: 1px solid var(--border-color);
  font-size: 0.8em;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.kz-insight-chip:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

/* ── Advanced Analytics Grid ─────────────────────────────────────────────── */
#kz-advanced-analytics {
  animation: kz-fade-in 0.5s ease both;
}

.kz-advanced-title {
  font-size: 1.1em;
  font-weight: bold;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  margin: 28px 0 14px;
  padding-top: 16px;
  border-top: 2px solid var(--border-color);
}

.kz-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.kz-chart-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: 16px;
  padding: 18px;
  transition: all 0.25s ease;
  animation: kz-fade-in 0.4s ease both;
}

.kz-chart-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(212, 120, 140, 0.2);
  transform: translateY(-2px);
}

.kz-chart-card h4 {
  margin: 0 0 12px;
  font-size: 0.9em;
  color: var(--accent-dark);
}

.kz-heatmap-card {
  max-width: 500px;
  width: 100%;
  align-self: flex-start;
}

/* ── Heatmap ─────────────────────────────────────────────────────────────── */
.kz-heatmap-grid {
  display: grid;
  gap: 4px;
  overflow-x: auto;
  padding: 4px 0;
  max-width: 100%;
  width: fit-content;
  margin: 0;
  justify-content: flex-start;
  justify-items: flex-start;
}

.kz-heatmap-cell {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--bg-hover);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.kz-heatmap-cell:hover {
  transform: scale(1.4);
  z-index: 2;
  box-shadow: 0 0 8px rgba(212, 120, 140, 0.5);
}

.kz-heat-0 { background: var(--bg-hover); opacity: 0.6; }
.kz-heat-1 { background: #f5d0dc; }
.kz-heat-2 { background: #e8a0b0; }
.kz-heat-3 { background: #d4788c; }
.kz-heat-4 { background: #b85a6e; }
.kz-heat-5 { background: #922040; }

[data-theme="dark"] .kz-heat-0 { background: #1c1a22; }
[data-theme="dark"] .kz-heat-1 { background: #3d1a2a; }
[data-theme="dark"] .kz-heat-2 { background: #5a2535; }
[data-theme="dark"] .kz-heat-3 { background: #8a3a50; }
[data-theme="dark"] .kz-heat-4 { background: #b85a6e; }
[data-theme="dark"] .kz-heat-5 { background: #d4788c; }

/* ── Weekly Breakdown Cards ──────────────────────────────────────────────── */
.kz-weekly-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.kz-week-card {
  text-align: center;
  padding: 12px 8px;
  border-radius: 12px;
  border: 1.5px solid var(--border-color);
  background: var(--bg-card);
  transition: all 0.2s;
  animation: kz-fade-in 0.4s ease both;
}

.kz-week-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.kz-week-day {
  font-size: 0.75em;
  color: var(--text-muted);
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kz-week-score {
  font-size: 1.5em;
  font-weight: bold;
  color: var(--accent);
  margin: 4px 0;
}

.kz-week-label {
  font-size: 0.72em;
  color: var(--text-muted);
}

    font-size: 0.75em;
  }

    padding: 3px 8px;
    font-size: 0.7em;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .kz-heatmap-cell { width: 11px; height: 11px; }
}

/* ── Achievements System ──────────────────────────────────────────────────── */
.kz-achievements-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.kz-achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.kz-achievement-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 8px;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  font-size: 0.75em;
  font-weight: 600;
  text-align: center;
  transition: all 0.3s ease;
  cursor: help;
}

.kz-achievement-badge.unlocked {
  border-color: #d4788c;
  background: linear-gradient(135deg, rgba(212, 120, 140, 0.15), rgba(212, 120, 140, 0.05));
  box-shadow: 0 2px 12px rgba(212, 120, 140, 0.2);
  animation: kz-fade-in 0.5s ease-out both;
}

.kz-achievement-badge.locked {
  opacity: 0.5;
  filter: grayscale(80%);
}

.kz-achievement-badge:hover.unlocked {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 4px 16px rgba(212, 120, 140, 0.35);
}

/* ── Achievement Notification ─────────────────────────────────────────────── */
@keyframes kz-notification-slide {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes kz-notification-glow {
  0%, 100% {
    box-shadow: 0 4px 24px rgba(212, 120, 140, 0.3);
  }
  50% {
    box-shadow: 0 8px 32px rgba(212, 120, 140, 0.6);
  }
}

.kz-achievement-notification {
  position: fixed;
  top: 80px;
  right: -400px;
  width: 320px;
  background: linear-gradient(135deg, rgba(212, 120, 140, 0.95), rgba(184, 90, 110, 0.95));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.kz-achievement-notification.show {
  right: 24px;
  opacity: 1;
  animation: kz-notification-slide 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
             kz-notification-glow 2s ease-in-out infinite 0.4s;
}

.kz-achievement-icon {
  font-size: 2.5em;
  flex-shrink: 0;
  animation: kz-xp-pulse 1s ease-in-out infinite;
}

.kz-achievement-info {
  flex: 1;
  color: #fff;
}

.kz-achievement-title {
  font-size: 0.7em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.9;
  margin-bottom: 2px;
}

.kz-achievement-name {
  font-size: 1.1em;
  font-weight: bold;
  margin-bottom: 4px;
}

.kz-achievement-xp {
  font-size: 0.85em;
  font-weight: 600;
  opacity: 0.95;
}

@media (max-width: 768px) {
  .kz-achievement-notification {
    width: calc(100% - 32px);
    top: 60px;
  }
  .kz-achievement-notification.show {
    right: 16px;
  }
  .kz-achievements-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }
}

/* ── Level Up Animation ───────────────────────────────────────────────────── */
@keyframes kz-level-up {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.kz-level-up-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10001;
  animation: kz-fade-in 0.3s ease-out;
}

.kz-level-up-content {
  background: linear-gradient(135deg, #d4788c, #b85a6e);
  border-radius: 24px;
  padding: 40px 60px;
  text-align: center;
  color: #fff;
  animation: kz-level-up 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 12px 48px rgba(212, 120, 140, 0.5);
}

.kz-level-up-title {
  font-size: 3em;
  font-weight: bold;
  margin-bottom: 8px;
  animation: kz-xp-pulse 1s ease-in-out infinite;
}

.kz-level-up-message {
  font-size: 1.5em;
  opacity: 0.95;
  margin-bottom: 4px;
}

.kz-level-up-subtitle {
  font-size: 0.9em;
  opacity: 0.8;
}

/* ── XP Gain Floating Popup ───────────────────────────────────────────────── */
@keyframes kz-xp-gain-float {
  0%   { opacity: 0; transform: translateY(0) scale(0.8); }
  10%  { opacity: 1; transform: translateY(-8px) scale(1.1); }
  80%  { opacity: 1; transform: translateY(-40px) scale(1); }
  100% { opacity: 0; transform: translateY(-50px) scale(0.9); }
}

@keyframes kz-xp-gain-glow {
  0%, 100% { text-shadow: 0 0 8px currentColor; }
  50%      { text-shadow: 0 0 16px currentColor; }
}

@keyframes kz-xp-gain-bounce {
  0%, 100% { transform: translateY(-8px) scale(1); }
  50%      { transform: translateY(-16px) scale(1.15); }
}

.kz-xp-gain-popup {
  position: fixed;
  bottom: 50vh;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.2em;
  font-weight: bold;
  color: #d4788c;
  text-shadow: 0 2px 8px rgba(212, 120, 140, 0.5);
  pointer-events: none;
  z-index: 9999;
  animation: kz-xp-gain-float 1.5s ease-out forwards;
  white-space: nowrap;
}

/* Combo effect styles based on XP amount */
.kz-xp-gain-popup.xp-small {
  font-size: 1.2em;
  color: #d4788c;
}

.kz-xp-gain-popup.xp-medium {
  font-size: 1.4em;
  color: #22c55e;
  text-shadow: 0 2px 10px rgba(34, 197, 94, 0.6);
}

.kz-xp-gain-popup.xp-large {
  font-size: 1.6em;
  color: #f59e0b;
  text-shadow: 0 2px 12px rgba(245, 158, 11, 0.7);
  animation: kz-xp-gain-float 1.5s ease-out forwards, kz-xp-gain-glow 0.8s ease-in-out 2;
}

.kz-xp-gain-popup.xp-epic {
  font-size: 2em;
  color: #fbbf24;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  filter: drop-shadow(0 4px 16px rgba(251, 191, 36, 0.8));
  animation: kz-xp-gain-float 1.8s ease-out forwards, kz-xp-gain-bounce 0.4s ease-in-out 2;
}