/* ============================================================
   BASE.CSS — Reset, éléments de base, layout & utilitaires
   BIM-Pilot Design System
   ============================================================ */

/* ============================================================
   1. CSS RESET MODERNE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  transition: background var(--transition-normal), color var(--transition-normal);
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

a {
  text-decoration: none;
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* ============================================================
   2. CONTAINER PRINCIPAL
   ============================================================ */
.container {
  max-width: var(--grid-max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
  width: 100%;
}

/* ============================================================
   3. MAIN CONTENT
   ============================================================ */
.main-content {
  flex: 1;
  padding: var(--space-8) var(--space-4);
  max-width: var(--grid-max-width);
  margin: 0 auto;
  width: 100%;
}

/* Inside sidebar layout: fill remaining space, no max-width centering */
.sidebar-layout .main-content {
  max-width: none;
  margin: 0;
  padding: 1.5rem 2rem;
}

/* ============================================================
   4. SKIP LINK (Accessibilité)
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-2);
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 10000;
  font-weight: 600;
  font-size: 0.875rem;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-2);
}

/* ============================================================
   5. GLASS EFFECT (utilitaires)
   ============================================================ */
.glass {
  background: var(--color-bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border-glass);
}

.glass-solid {
  background: var(--color-bg-glass-solid);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border-glass);
}

/* ============================================================
   6. ACCESSIBILITÉ — FOCUS-VISIBLE & REDUCED MOTION
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   7. ANIMATIONS CSS
   ============================================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

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

.animate-fade-in {
  animation: fadeIn var(--transition-normal);
}

.animate-slide-up {
  animation: slideUp var(--transition-normal);
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* ============================================================
   8. RESPONSIVE — MOBILE FIRST
   ============================================================ */

/* === SIDEBAR (private mode) === */
.sidebar-layout {
  display: flex;
  min-height: calc(100vh - 64px); /* viewport moins navbar */
}

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  padding: 1.25rem 0;
  overflow-y: auto;
}

.sidebar-header {
  padding: 0 1.25rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  border-left: 3px solid transparent;
}

.sidebar-link:hover {
  background: var(--color-accent-subtle);
  color: var(--color-text-primary);
}

.sidebar-link.active,
.sidebar-link[aria-current="page"] {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

.sidebar-link .icon {
  width: 1.25rem;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-section-title {
  padding: 1rem 1.25rem 0.25rem;
  font-size: 0.675rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.sidebar-main {
  flex: 1;
  min-width: 0;
  padding: 1.5rem 2rem;
  overflow-y: auto;
}

@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 0;
  }
  .sidebar-layout {
    flex-direction: column;
  }
  .sidebar-main {
    padding: 1rem;
  }
}

/* Mobile (< 640px) */
@media (max-width: 639px) {
  .main-content {
    padding: var(--space-6) var(--space-4);
  }
}

/* Tablette (640px – 767px) */
@media (min-width: 640px) and (max-width: 767px) {
  .main-content {
    padding: var(--space-8) var(--space-6);
  }
}

/* Desktop (≥ 768px) */
@media (min-width: 768px) {
  .navbar-links {
    display: flex !important;
  }
}

/* Large desktop (≥ 1280px) */
@media (min-width: 1280px) {
  .navbar {
    padding: 0 calc((100vw - var(--grid-max-width)) / 2 + var(--space-8));
  }
}

/* ============================================================
   9. ACTIVITY FEED
   ============================================================ */
.activity-feed {
  margin-bottom: 2rem;
}

.activity-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.75rem 1rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.activity-item:hover {
  border-color: var(--color-accent);
}

.activity-icon {
  font-size: 1.25rem;
  line-height: 1.5;
  flex-shrink: 0;
}

.activity-body {
  flex: 1;
  min-width: 0;
}

.activity-text {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-primary);
  line-height: 1.5;
}

.activity-time {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.15rem;
}