/* ============================================================
   PORTFOLIO PÉDAGOGIQUE — Alban Chabalier
   Fichier : animations.css — Animations CSS et effets spéciaux
   ============================================================ */

/* ============================================================
   LOADER / SPLASH SCREEN
   ============================================================ */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--color-bg-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-6);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeIn 0.5s ease;
}

.loader-bar-track {
  width: 200px;
  height: 2px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.loader-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  animation: loader-grow 1.5s ease forwards;
}

@keyframes loader-grow {
  0%   { width: 0%; }
  100% { width: 100%; }
}

.loader-text {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: blink 1s ease infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ============================================================
   CURSEUR PERSONNALISÉ (Desktop uniquement)
   ============================================================ */
@media (pointer: fine) {
  body {
    cursor: none;
  }

  .custom-cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 10px;
    height: 10px;
    background: var(--color-accent-cyan);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99999;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background 0.2s;
    mix-blend-mode: difference;
  }

  .custom-cursor-ring {
    position: fixed;
    top: 0;
    left: 0;
    width: 36px;
    height: 36px;
    border: 1.5px solid rgba(0, 212, 255, 0.4);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99998;
    transform: translate(-50%, -50%);
    transition: width 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                height 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                opacity 0.2s;
  }

  /* Hover sur lien — curseur agrandi */
  body.cursor-hover .custom-cursor {
    width: 6px;
    height: 6px;
    background: var(--color-accent-violet);
  }

  body.cursor-hover .custom-cursor-ring {
    width: 50px;
    height: 50px;
    border-color: rgba(124, 58, 237, 0.5);
  }

  a, button, .competence-card, .analyse-block, .trace-card, .nav-page-link {
    cursor: none;
  }
}

/* ============================================================
   EFFET MORPHING DU FOND (noise texture animé)
   ============================================================ */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-size: 200px;
}

/* ============================================================
   TOOLTIP PERSONNALISÉ
   ============================================================ */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: rgba(19, 27, 46, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-primary);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 100;
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   PROGRESS INDICATOR (lecture de page)
   ============================================================ */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--gradient-primary);
  z-index: 1001;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.1s linear;
}

/* ============================================================
   EFFET GLITCH (optionnel sur titre)
   ============================================================ */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glitch::before {
  animation: glitch-clip-1 3s infinite steps(1);
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
  transform: translateX(-2px);
}

.glitch::after {
  animation: glitch-clip-2 3s infinite steps(1);
  clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
  transform: translateX(2px);
}

@keyframes glitch-clip-1 {
  0%, 90%, 100% { opacity: 0; }
  91%, 94%      { opacity: 0.7; }
}

@keyframes glitch-clip-2 {
  0%, 92%, 100% { opacity: 0; }
  93%, 96%      { opacity: 0.7; }
}

/* ============================================================
   SPARKLES (étoiles scintillantes)
   ============================================================ */
.sparkle-container {
  position: relative;
  display: inline-block;
}

.sparkle {
  position: absolute;
  border-radius: 50%;
  background: var(--color-accent-cyan);
  pointer-events: none;
  animation: sparkle-anim var(--duration, 1.5s) ease var(--delay, 0s) infinite;
}

@keyframes sparkle-anim {
  0%, 100% {
    transform: scale(0) rotate(0deg);
    opacity: 0;
  }
  50% {
    transform: scale(1) rotate(180deg);
    opacity: 0.8;
  }
}

/* ============================================================
   TYPED TEXT ANIMATION
   ============================================================ */
.typed-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--color-accent-cyan);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: typed-blink 0.7s ease infinite;
}

@keyframes typed-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ============================================================
   SKILL PROGRESS RINGS (SVG circulaires)
   ============================================================ */
.progress-ring-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.progress-ring {
  transform: rotate(-90deg);
}

.progress-ring-track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.06);
}

.progress-ring-fill {
  fill: none;
  stroke: url(#ring-gradient);
  stroke-linecap: round;
  transition: stroke-dashoffset 1.5s ease;
}

.ring-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  text-align: center;
  letter-spacing: 0.04em;
}

.ring-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent-cyan);
}

/* ============================================================
   CARD HOVER SPOTLIGHT (effet lumière qui suit la souris)
   ============================================================ */
.spotlight-card {
  position: relative;
  overflow: hidden;
}

.spotlight-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(0, 212, 255, 0.04),
    transparent 40%
  );
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
  z-index: 0;
}

.spotlight-card:hover::before {
  opacity: 1;
}

/* ============================================================
   ACCORDÉON (pour mobile)
   ============================================================ */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  color: var(--color-text-primary);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  transition: background var(--transition-base);
}

.accordion-header:hover {
  background: rgba(255, 255, 255, 0.03);
}

.accordion-chevron {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.accordion-item.open .accordion-chevron {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion-body-inner {
  padding: 0 var(--space-6) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  backdrop-filter: blur(20px);
  animation: toast-in 0.3s ease forwards;
  max-width: 320px;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.hiding {
  animation: toast-out 0.3s ease forwards;
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(40px);
  }
}

/* ============================================================
   GRID BACKGROUND LINES (décoration)
   ============================================================ */
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}