/* ==============================================
   COMPOSANTS — Boutons, chips, cartes, modale
   Portfolio v2 — Apple-quality animations
   ============================================== */

/* ================================
   BOUTONS
   ================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: var(--fs-sm);
  transition: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  z-index: 0;
}
.btn:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
}
.btn:active {
  transform: scale(0.97);
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}
.btn:hover::before { opacity: 1; }

.btn--accent {
  background: var(--c-accent);
  color: var(--c-bg);
}
.btn--accent:hover {
  background: var(--c-accent);
  color: var(--c-bg);
  box-shadow: 0 4px 24px rgba(45, 212, 191, 0.35);
  transform: translateY(-2px);
}
.btn--ghost {
  background: transparent;
  color: var(--c-accent);
  border: 1px solid var(--c-accent-border);
}
.btn--ghost:hover {
  background: var(--c-accent-bg);
  border-color: var(--c-accent);
  transform: translateY(-1px);
}
.btn--sm {
  padding: 6px 14px;
  font-size: var(--fs-xs);
}

/* ================================
   CHIPS / TAGS
   ================================ */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  border: 1px solid var(--c-accent-border);
  color: var(--c-accent);
  background: var(--c-accent-bg);
  white-space: nowrap;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.chip--click {
  cursor: pointer;
}
.chip--click:hover {
  background: var(--c-accent);
  color: var(--c-bg);
  border-color: var(--c-accent);
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 4px 16px rgba(45, 212, 191, 0.25);
}
.chip--click:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}
.chip--active {
  background: var(--c-accent);
  color: var(--c-bg);
  border-color: var(--c-accent);
}
.chip--cat {
  font-family: var(--f-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--c-surface-2);
  border-color: var(--c-border-2);
  color: var(--c-text-3);
}

/* ================================
   CARTES PROJET
   ================================ */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.card::after {
  content: '';
  position: absolute;
  top: 12px;
  left: 0;
  width: 3px;
  height: 28px;
  background: var(--c-accent);
  border-radius: 0 3px 3px 0;
  opacity: 0;
  transition: opacity 0.3s ease, height 0.3s ease;
}
.card:hover {
  border-color: var(--c-accent-border);
  transform: translateY(-5px);
  box-shadow: 0 24px 48px rgba(0,0,0,0.35), 0 0 40px rgba(45, 212, 191, 0.12);
}
.card:hover::after { opacity: 1; height: 36px; }

.card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.card__title {
  font-size: var(--fs-md);
  font-weight: 700;
  line-height: 1.3;
}
.card__desc {
  color: var(--c-text-2);
  font-size: var(--fs-sm);
  line-height: 1.55;
  flex: 1;
}
.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
}

/* Barre progression */
.prog {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
}
.prog__bar {
  flex: 1;
  height: 5px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  overflow: hidden;
}
.prog__fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--c-accent-dim), var(--c-accent));
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 12px rgba(45, 212, 191, 0.3);
}
.prog__val {
  font-family: var(--f-mono);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c-text-3);
  min-width: 32px;
  text-align: right;
}

/* Bouton voir plus sur carte */
.card__more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border-radius: var(--r-sm);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--c-accent);
  border: 1px solid var(--c-border);
  background: transparent;
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.card__more:hover {
  background: var(--c-accent);
  color: var(--c-bg);
  border-color: var(--c-accent);
}

/* ================================
   GRILLE PROJETS
   ================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
@media (max-width: 768px) {
  .projects-grid { grid-template-columns: 1fr; }
}
@media (min-width: 1440px) {
  .projects-grid { grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 20px; }
  .card { padding: 26px; }
}
@media (min-width: 1920px) {
  .projects-grid { grid-template-columns: repeat(auto-fill, minmax(400px, 1fr)); gap: 24px; }
  .card { padding: 28px; }
  .modal { max-width: 700px; padding: 36px; }
}

/* ================================
   BARRE FILTRE
   ================================ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding: 14px 18px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
}
.filter-bar__label {
  font-size: var(--fs-sm);
  color: var(--c-text-3);
  font-weight: 600;
}
.filter-bar__select {
  padding: 6px 14px;
  border-radius: var(--r-sm);
  background: var(--c-surface-2);
  color: var(--c-text);
  border: 1px solid var(--c-border-2);
  font-family: var(--f-sans);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: border-color 0.3s ease;
}
.filter-bar__select:hover,
.filter-bar__select:focus {
  border-color: var(--c-accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
}
.filter-bar__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.filter-bar__count {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  color: var(--c-text-3);
  margin-left: auto;
}
@media (max-width: 768px) {
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-bar__count { margin-left: 0; text-align: center; }
}

/* Aucun résultat */
.no-results {
  text-align: center;
  padding: 60px 24px;
  color: var(--c-text-3);
}
.no-results__text {
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--c-text-2);
  margin-bottom: 8px;
}

/* ================================
   MODALE — Apple-style
   ================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10, 14, 20, 0.7);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), visibility 0.4s;
}
.modal-overlay--open {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--c-surface);
  border: 1px solid var(--c-accent-border);
  border-radius: var(--r-lg);
  width: 100%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 32px;
  position: relative;
  transform: scale(0.92) translateY(20px);
  opacity: 0;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(45, 212, 191, 0.08);
}
.modal-overlay--open .modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}
.modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
  color: var(--c-text-3);
  transition: all 0.2s ease;
}
.modal__close:hover {
  background: rgba(248,113,113,0.15);
  color: var(--c-danger);
  box-shadow: inset 0 0 12px rgba(248, 113, 113, 0.1);
}
.modal__title {
  font-size: var(--fs-xl);
  font-weight: 800;
  margin-bottom: 6px;
  padding-right: 36px;
}
.modal__desc {
  color: var(--c-text-2);
  margin-bottom: 18px;
  line-height: 1.6;
}
.modal__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 18px;
}
.modal__block {
  margin-bottom: 16px;
}
.modal__block-title {
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-accent);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.modal__block-content {
  color: var(--c-text-2);
  font-size: var(--fs-sm);
  line-height: 1.7;
  max-width: 95%;
}
.modal__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.modal__tool {
  padding: 4px 10px;
  border-radius: var(--r-sm);
  font-size: var(--fs-xs);
  font-family: var(--f-mono);
  font-weight: 600;
  background: rgba(45, 212, 191, 0.08);
  color: var(--c-accent);
  border: 1px solid var(--c-accent-border);
}
.modal__diff {
  display: flex;
  gap: 4px;
}
.modal__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-border-2);
  transition: background 0.3s ease;
}
.modal__dot--on { background: var(--c-accent); }
.modal__github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--r-sm);
  background: var(--c-text);
  color: var(--c-bg);
  font-size: var(--fs-sm);
  font-weight: 600;
  transition: all 0.3s ease;
  margin-top: 6px;
}
.modal__github:hover {
  background: var(--c-text-2);
  color: var(--c-bg);
  transform: translateY(-1px);
}

/* ================================
   ANIMATIONS — Apple-quality reveal system
   ================================ */

/* Base reveal — invisible avant animation */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  filter: blur(2px);
  transition:
    opacity var(--t-reveal),
    transform var(--t-reveal),
    filter var(--t-reveal);
  will-change: opacity, transform, filter;
}
.reveal--visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Variantes d'animation */
.reveal--left {
  transform: translateX(-40px) translateY(0);
  filter: blur(2px);
}
.reveal--left.reveal--visible {
  transform: translateX(0) translateY(0);
  filter: blur(0);
}

.reveal--right {
  transform: translateX(40px) translateY(0);
  filter: blur(2px);
}
.reveal--right.reveal--visible {
  transform: translateX(0) translateY(0);
  filter: blur(0);
}

.reveal--scale {
  transform: scale(0.9);
  filter: blur(2px);
}
.reveal--scale.reveal--visible {
  transform: scale(1);
  filter: blur(0);
}

/* Stagger delays pour enfants */
.reveal--stagger > *:nth-child(1) { transition-delay: 0ms; }
.reveal--stagger > *:nth-child(2) { transition-delay: 80ms; }
.reveal--stagger > *:nth-child(3) { transition-delay: 160ms; }
.reveal--stagger > *:nth-child(4) { transition-delay: 240ms; }
.reveal--stagger > *:nth-child(5) { transition-delay: 320ms; }
.reveal--stagger > *:nth-child(6) { transition-delay: 400ms; }
.reveal--stagger > *:nth-child(7) { transition-delay: 480ms; }
.reveal--stagger > *:nth-child(8) { transition-delay: 560ms; }

/* Delays custom pour section content */
.reveal--d1 { transition-delay: 100ms; }
.reveal--d2 { transition-delay: 200ms; }
.reveal--d3 { transition-delay: 300ms; }
.reveal--d4 { transition-delay: 400ms; }
.reveal--d5 { transition-delay: 500ms; }
.reveal--d6 { transition-delay: 600ms; }

/* Cascade cartes projet */
.card {
  opacity: 0;
  transform: translateY(20px);
  filter: blur(2px);
}
.card--visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.6s ease;
}

/* Scroll indicator (flèche vers le bas sur hero) */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--c-text-3);
  font-size: var(--fs-xs);
  font-family: var(--f-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeInScroll 1s 1.5s ease forwards;
}
.scroll-indicator__arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--c-accent);
  border-bottom: 2px solid var(--c-accent);
  transform: rotate(45deg);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes fadeInScroll {
  to { opacity: 0.6; }
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translate(0, 0); opacity: 1; }
  50% { transform: rotate(45deg) translate(4px, 4px); opacity: 0.4; }
}

/* Glow orbs — éléments décoratifs */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
  opacity: 0.06;
  transition: opacity 1s ease;
}
.glow-orb--teal {
  background: var(--c-accent);
}
.glow-orb--blue {
  background: var(--c-blue);
}
.glow-orb--purple {
  background: var(--c-purple);
}