/* ============================================================
   DERMIIZ — MOTION & ANIMATION SYSTEM
   Engineered to match Dermix reference interaction quality
   ============================================================ */

/* Keyframe Definitions */
@keyframes heroEntrance {
    0% {
        opacity: 0;
        transform: translateY(35px) scale(0.98);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes heroImageScale {
    0% {
        opacity: 0;
        transform: scale(1.06);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes floatBadge {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(248, 227, 203, 0.4);
    }
    50% {
        box-shadow: 0 0 0 12px rgba(248, 227, 203, 0);
    }
}

/* Scroll Trigger Reveal Classes */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

.reveal-fade {
    opacity: 0;
    transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity;
}

.reveal-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

/* Revealed Active State */
.revealed {
    opacity: 1 !important;
    transform: translate(0) scale(1) !important;
}

/* Stagger Delay Delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* Hero Entrance Animations */
.hero-dermiiz .hero-heading {
    animation: heroEntrance 0.85s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.15s both;
}

.hero-dermiiz .hero-description {
    animation: heroEntrance 0.85s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hero-dermiiz .hero-cta-row {
    animation: heroEntrance 0.85s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.45s both;
}

.hero-dermiiz .hero-review-badge {
    animation: heroEntrance 0.85s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.6s both;
}

.hero-dermiiz .hero-image-frame {
    animation: heroImageScale 1.1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.1s both;
}

.hero-dermiiz .hero-floating-stat {
    animation: floatBadge 4s ease-in-out infinite 1.2s;
}

/* Preloader */
#preloader {
    position: fixed;
    inset: 0;
    background: var(--dermiiz-brown);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1.5rem;
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                visibility 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-brand {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--dermiiz-peach);
    text-transform: uppercase;
}

.preloader-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(248, 227, 203, 0.2);
    border-top-color: var(--dermiiz-peach);
    border-radius: 50%;
    animation: spin 0.85s linear infinite;
}

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

/* Reduced Motion Support */
@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;
    }
    .reveal-up, .reveal-left, .reveal-right, .reveal-scale, .reveal-fade {
        opacity: 1 !important;
        transform: none !important;
    }
}