/* ============================================
   KEYFRAMES — Bibliothèque animations premium
   ============================================ */

/* Pulse — badge "disponible" */
@keyframes pulse {
    0%   { transform: scale(1);   opacity: 0.5; }
    50%  { transform: scale(1.6); opacity: 0;   }
    100% { transform: scale(1);   opacity: 0;   }
}

/* Marquee — infinite horizontal scroll */
@keyframes marquee {
    0%   { transform: translateX(0);    }
    100% { transform: translateX(-50%); }
}

/* Marquee reverse */
@keyframes marquee-reverse {
    0%   { transform: translateX(-50%); }
    100% { transform: translateX(0);    }
}

/* Fade In */
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* Slide Up */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0);    }
}

/* Slide Down */
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-24px); }
    to   { opacity: 1; transform: translateY(0);     }
}

/* Float — lévitation périodique */
@keyframes float {
    0%, 100% { transform: translateY(0px);  }
    50%       { transform: translateY(-8px); }
}

/* Glow Rotate — halo tournant AI Summary */
@keyframes rotateGlow {
    0%   { transform: rotate(0deg);   }
    100% { transform: rotate(360deg); }
}

/* Pulse Glow — icône IA */
@keyframes pulseGlow {
    0%, 100% {
        filter: drop-shadow(0 0 3px rgba(0,174,239,0.5));
        transform: scale(1);
    }
    50% {
        filter: drop-shadow(0 0 12px rgba(0,174,239,0.9));
        transform: scale(1.12);
    }
}

/* Shimmer — sweep lumineux */
@keyframes shimmer {
    0%   { background-position: -200% center; }
    100% { background-position:  200% center; }
}

/* Scale In */
@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.92); }
    to   { opacity: 1; transform: scale(1);    }
}

/* Border glow pulse */
@keyframes borderGlow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0,174,239,0.4); }
    50%       { box-shadow: 0 0 0 8px rgba(0,174,239,0);  }
}

/* Spin — loader */
@keyframes spin {
    0%   { transform: rotate(0deg);   }
    100% { transform: rotate(360deg); }
}

/* ============================================
   REVEAL — IntersectionObserver scroll animations
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.94);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-spring);
}

.reveal-scale.is-visible {
    opacity: 1;
    transform: scale(1);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}

/* Stagger delays */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }
.delay-700 { transition-delay: 700ms; }
.delay-800 { transition-delay: 800ms; }

/* ============================================
   MICRO-ANIMATIONS — Classes utilitaires
   ============================================ */

.hover-lift {
    transition: transform var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}
.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-lift-md {
    transition: transform var(--duration-normal) var(--ease-spring),
                box-shadow var(--duration-normal) var(--ease-out);
}
.hover-lift-md:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.hover-scale:hover {
    transform: scale(1.03);
    transition: transform var(--duration-normal) var(--ease-spring);
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

/* Shimmer text — gradient animé */
.text-shimmer {
    background: linear-gradient(
        90deg,
        var(--color-primary) 0%,
        var(--color-teal-500) 30%,
        #ffffff 50%,
        var(--color-teal-500) 70%,
        var(--color-primary) 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

/* Gradient text */
.text-gradient {
    background: linear-gradient(135deg, var(--color-primary), var(--color-teal-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal, .reveal-scale, .reveal-left, .reveal-right {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .animate-float, .text-shimmer { animation: none; }
}