/* ============================================================================= */
/* CHARTE GRAPHIQUE & VARIABLES
/* ============================================================================= */
:root {
  --primary: #4F46E5; --primary-hover: #4338CA; --primary-light: #ffffff;
  --secondary: #10B981; --secondary-hover: #059669; --secondary-light: #f0fdfa;
  --gray-50: #F9FAFB; --gray-100: #F3F4F6; --gray-200: #E5E7EB; --gray-300: #D1D5DB; --gray-400: #9CA3AF;
  --gray-500: #6B7280; --gray-600: #4B5563; --gray-700: #374151; --gray-800: #1F2937; --gray-900: #111827;
  --success: #10B981; --danger: #EF4444; --warning: #F59E0B; --info: #3B82F6;
  --font-family: 'Inter', -apple-system, sans-serif; --font-size-base: 16px; --line-height: 1.6;
  --spacing-sm: 0.5rem; --spacing-md: 1rem; --spacing-lg: 1.5rem; --spacing-xl: 2rem;
  --radius: 12px; --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================================= */
/* RESET & BASE
/* ============================================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-family); font-size: var(--font-size-base); line-height: var(--line-height);
  background-color: var(--gray-100); color: var(--gray-700);
}
.container { max-width: 1200px; margin: 0 auto; padding: var(--spacing-md); }
.hidden { display: none !important; }

/* ============================================================================= */
/* HEADER & ICONS (Index Page)
/* ============================================================================= */
.main-header { 
  position: relative;
  margin-bottom: var(--spacing-lg); 
  padding-top: var(--spacing-md);
}
.header-icons {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  gap: var(--spacing-xl);
}
.icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  color: var(--gray-400);
  background-color: var(--primary-light);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  text-decoration: none;
}
.icon-link:hover {
  color: var(--primary);
  background-color: var(--gray-50);
  border-color: var(--gray-300);
}

/* ============================================================================= */
/* NAVIGATION SEMAINE
/* ============================================================================= */
.week-nav { display: grid; grid-template-columns: repeat(7, 1fr); gap: var(--spacing-sm); margin-bottom: var(--spacing-lg); }
.day-item { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: var(--spacing-sm) 0; border-radius: var(--radius); text-decoration: none; color: var(--gray-600); background-color: var(--primary-light); border: 2px solid var(--primary-light); transition: var(--transition); position: relative; box-shadow: var(--shadow-sm); }
.day-item:hover { border-color: var(--primary); }
.day-name { font-size: 0.8rem; font-weight: 500; color: var(--gray-400); }
.day-number { font-size: 1.2rem; font-weight: 700; }
.day-item.is-selected { border-color: var(--primary); background: var(--primary); color: var(--primary-light); }
.day-item.is-selected .day-name { color: var(--primary-light); opacity: 0.8; }

/* ============================================================================= */
/* QUICK LAUNCH
/* ============================================================================= */
.quick-launch-container { display: flex; justify-content: center; align-items: center; margin-bottom: var(--spacing-lg); }
.quick-launch-btn { width: 90px; height: 90px; border-radius: 50%; border: 3px solid var(--primary-light); box-shadow: var(--shadow-md); background-color: var(--primary); background-size: cover; background-position: center; cursor: pointer; transition: var(--transition); position: relative; display: flex; justify-content: center; align-items: center; }
.quick-launch-btn:hover { transform: scale(1.05); }
.quick-launch-btn span { background-color: rgba(17, 24, 39, 0.7); color: var(--primary-light); font-size: 0.8rem; font-weight: 500; padding: 0.25rem 0.6rem; border-radius: var(--radius); transition: var(--transition); }
.quick-launch-btn:hover span { background-color: rgba(79, 70, 229, 0.8); }

/* ============================================================================= */
/* VUE JOURNALIÈRE - DEUX COLONNES
/* ============================================================================= */
.day-view-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}
.program-column, .completed-column {
    background-color: var(--primary-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.column-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}
.column-header h3 {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.column-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}
#completed-count {
    color: var(--secondary-hover);
}
.exercise-list, .completed-exercise-list {
    padding: var(--spacing-sm);
    flex-grow: 1;
    overflow-y: auto;
}
.empty-list-message {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--gray-400);
}

/* ============================================================================= */
/* CARTES D'EXERCICES (Programme & Réalisé)
/* ============================================================================= */
.exercise-card {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: var(--transition);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--gray-100);
}
.exercise-card.is-logged {
    background-color: var(--gray-50);
    opacity: 0.6;
}
.exercise-card.is-logged .start-exercise-btn {
    background-color: var(--success);
    color: white;
    cursor: not-allowed;
}
.exercise-info { display: flex; justify-content: space-between; align-items: center; }
.exercise-name-container { display: flex; align-items: center; gap: var(--spacing-sm); }
.exercise-name { font-weight: 500; color: var(--gray-800); }
.exercise-reps { font-size: 0.9rem; color: var(--gray-500); font-weight: 500; background-color: var(--gray-100); padding: 2px 8px; border-radius: 99px; }
.exercise-actions { display: flex; justify-content: flex-end; align-items: center; }

.completed-exercise-card {
    background-color: var(--secondary-light);
    border: 1px solid var(--success);
    color: var(--secondary-hover);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: grid;
    grid-template-areas: "info delete" "log delete";
    grid-template-columns: 1fr auto;
    gap: var(--spacing-sm) var(--spacing-md);
}
.completed-info { grid-area: info; display: flex; justify-content: space-between; align-items: baseline; }
.completed-name { font-weight: 600; }
.completed-details { font-size: 0.85rem; opacity: 0.8; }
.completed-log { grid-area: log; font-size: 0.8rem; opacity: 0.7; }
.delete-completed-btn {
    grid-area: delete;
    background: none;
    border: none;
    color: var(--danger);
    font-size: 1.75rem;
    font-weight: bold;
    cursor: pointer;
    padding: 0 var(--spacing-sm);
    opacity: 0.4;
    transition: var(--transition);
    align-self: center;
}
.delete-completed-btn:hover { opacity: 1; transform: scale(1.1); }

/* ============================================================================= */
/* BOUTONS & OVERLAYS
/* ============================================================================= */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--spacing-sm); padding: 0.6rem 1.2rem; font-family: inherit; font-size: 0.9rem; font-weight: 500; border: 1px solid transparent; border-radius: var(--radius); cursor: pointer; transition: var(--transition); }
.btn-primary { background-color: var(--primary); color: var(--primary-light); }
.btn-primary:hover:not(:disabled) { background-color: var(--primary-hover); }
.btn-secondary { background-color: var(--primary-light); color: var(--gray-600); border-color: var(--gray-300); }
.btn-secondary:hover:not(:disabled) { background-color: var(--gray-100); }
.video-btn { background: none; border: none; padding: 0.25rem; cursor: pointer; color: var(--gray-400); display: inline-flex; align-items: center; border-radius: 50%; }
.video-btn:hover { color: var(--primary); }

.timer-overlay, .video-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(17, 24, 39, 0.8); backdrop-filter: blur(8px); display: flex; justify-content: center; align-items: center; z-index: 1000; }
.timer-modal { background-color: var(--gray-800); color: var(--primary-light); border-radius: var(--radius-lg); padding: var(--spacing-xl); width: calc(100% - 2rem); max-width: 400px; text-align: center; display: flex; flex-direction: column; gap: var(--spacing-lg); }
.timer-modal h3 { font-size: 1.5rem; }
.timer-display { font-size: 4rem; font-weight: 700; font-family: monospace; }
.timer-display.rest-mode { color: var(--warning); }
#timer-status { font-size: 1.1rem; color: var(--gray-400); }
.timer-log { display: flex; justify-content: center; gap: var(--spacing-sm); flex-wrap: wrap; min-height: 24px; }
.timer-log .set-log-entry { background: var(--gray-700); padding: 4px 10px; border-radius: 4px; }
.timer-controls { display: flex; flex-direction: column; gap: var(--spacing-md); }
.video-modal { position: relative; width: 90%; max-width: 800px; }
#exercise-video { width: 100%; border-radius: var(--radius); }
#close-video-btn { position: absolute; top: -15px; right: -15px; width: 30px; height: 30px; background: white; border: none; border-radius: 50%; font-size: 1.5rem; cursor: pointer; }

/* ============================================================================= */
/* MOBILE RESPONSIVE
/* ============================================================================= */
@media (max-width: 768px) {
  .container { max-width: 100%; }
  .day-view-container { grid-template-columns: 1fr; }
  .main-header { margin-bottom: var(--spacing-md); }
  .header-icons { position: static; justify-content: center; margin-top: var(--spacing-sm); }
  .week-nav { gap: 4px; }
}