/* ==========================================================================
   FITDEFINER FEMME - DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

:root {
  --font-primary: 'Outfit', sans-serif;
  --font-secondary: 'Plus Jakarta Sans', sans-serif;

  /* Color Palette - Soft Dark Luxe Theme */
  --bg-dark: #090d16;
  --bg-card: rgba(22, 27, 44, 0.75);
  --bg-card-hover: rgba(30, 37, 60, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(236, 72, 153, 0.5);

  --accent-pink: #ec4899;
  --accent-magenta: #f43f5e;
  --accent-purple: #a855f7;
  --accent-violet: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;

  --shadow-glow: 0 0 25px rgba(236, 72, 153, 0.25);
  --shadow-card: 0 12px 30px -10px rgba(0, 0, 0, 0.5);

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-primary);
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  padding: 20px 16px 60px;
  overflow-x: hidden;
  position: relative;
  line-height: 1.5;
}

/* Background Animated Ambient Glows */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.45;
}
.blob-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-pink), var(--accent-purple));
  top: -100px;
  right: -50px;
}
.blob-2 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--accent-violet), var(--bg-dark));
  bottom: 0px;
  left: -100px;
}

/* App Wrapper Container */
.app-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Header Component */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: var(--shadow-glow);
}

.brand h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.brand h1 span {
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand .subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-secondary);
}

.stat-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Day Tabs Navigation */
.day-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.tab-btn {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 14px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  transition: var(--transition-normal);
  text-align: left;
}

.tab-btn:hover {
  background: var(--bg-card-hover);
  border-color: rgba(236, 72, 153, 0.3);
  transform: translateY(-2px);
}

.tab-btn.active {
  background: linear-gradient(145deg, rgba(236, 72, 153, 0.15), rgba(168, 85, 247, 0.15));
  border-color: var(--accent-pink);
  color: var(--text-main);
  box-shadow: 0 4px 20px rgba(236, 72, 153, 0.2);
}

.tab-badge {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--accent-pink);
  background: rgba(236, 72, 153, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.tab-title {
  font-size: 1rem;
  font-weight: 700;
  margin-top: 2px;
}

.tab-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-secondary);
}

/* Control & Progress Banner */
.control-banner {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.progress-container {
  flex: 1;
  min-width: 250px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.progress-label {
  font-weight: 700;
}
.progress-percent {
  font-size: 0.8rem;
  color: var(--accent-pink);
  font-weight: 600;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-pink), var(--accent-purple));
  border-radius: var(--radius-pill);
  transition: width 0.4s ease;
}

/* Timer Widget */
.timer-widget {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(0, 0, 0, 0.3);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
}
.timer-display {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.5px;
  color: var(--accent-cyan);
}

.timer-controls {
  display: flex;
  gap: 6px;
}

.timer-btn {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-main);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
}
.timer-btn:hover {
  background: var(--accent-purple);
}
.timer-btn.stop-btn {
  background: rgba(244, 63, 94, 0.2);
  color: var(--accent-magenta);
}
.timer-btn.stop-btn:hover {
  background: var(--accent-magenta);
  color: #fff;
}

/* Exercise Cards Container */
.exercises-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Individual Exercise Card */
.exercise-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  display: grid;
  grid-template-columns: 240px 1fr;
}

.exercise-card:hover {
  border-color: rgba(236, 72, 153, 0.3);
  box-shadow: var(--shadow-card);
}

.exercise-card.completed-card {
  border-color: rgba(16, 185, 129, 0.3);
}

.exercise-media {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 190px;
  background: #111524;
  overflow: hidden;
}

.exercise-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.exercise-card:hover .exercise-img {
  transform: scale(1.04);
}

.exercise-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.exercise-badge.abs-badge {
  background: rgba(236, 72, 153, 0.85);
}

.exercise-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.exercise-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.exercise-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.exercise-reps-pill {
  background: rgba(236, 72, 153, 0.12);
  border: 1px solid rgba(236, 72, 153, 0.25);
  color: var(--accent-pink);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.video-btn {
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.1), rgba(168, 85, 247, 0.1));
  border: 1px solid rgba(236, 72, 153, 0.3);
  color: #f472b6;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
  align-self: flex-start;
  text-decoration: none;
}
.video-btn:hover {
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.4);
}

/* Weight Tracker Grid (Séries) */
.sets-tracker {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
}

.sets-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sets-title .last-record {
  font-size: 0.75rem;
  color: var(--accent-purple);
  text-transform: none;
  font-weight: 600;
}

.sets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 10px;
}

.set-item {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  transition: var(--transition-fast);
}

.set-item:focus-within {
  border-color: var(--border-focus);
  background: rgba(236, 72, 153, 0.05);
}

.set-item.completed {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.3);
}

.set-number {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  min-width: 20px;
}

.weight-input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 700;
  outline: none;
  text-align: right;
}
.weight-input::placeholder {
  color: var(--text-dim);
  font-weight: 400;
}

.unit-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-weight: 600;
}

.set-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 11px;
  color: transparent;
  transition: var(--transition-fast);
  flex-shrink: 0;
}
.set-item.completed .set-check {
  background: var(--accent-emerald);
  border-color: var(--accent-emerald);
  color: #fff;
}

/* Footer Info */
.app-footer {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tip-card {
  background: linear-gradient(135deg, rgba(30, 27, 75, 0.6), rgba(15, 23, 42, 0.6));
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.tip-icon {
  font-size: 1.5rem;
}
.tip-card h4 {
  font-size: 0.95rem;
  color: var(--accent-purple);
  margin-bottom: 4px;
}
.tip-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-secondary);
}

.copyright {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Modal Styling */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 1;
  transition: opacity 0.3s ease;
}
.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-card {
  background: #151a2a;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}
.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
}
.close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
}
.close-btn:hover {
  color: #fff;
}

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.video-container {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.btn {
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  color: #fff;
}
.btn-primary:hover {
  box-shadow: 0 4px 15px rgba(236, 72, 153, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Responsive Layout */
@media (max-width: 768px) {
  .exercise-card {
    grid-template-columns: 1fr;
  }
  .exercise-media {
    height: 180px;
  }
  .day-tabs {
    grid-template-columns: 1fr;
  }
  .control-banner {
    flex-direction: column;
    align-items: stretch;
  }
  .timer-widget {
    justify-content: space-between;
  }
}