/* =====================================================
   GRAY GISAN 118.1 — Scroll & Entrance Animations
   ===================================================== */

/* Reveal Animation Base */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    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);
}

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

/* Hero fade-up animations */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.animate {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }
.delay-4 { transition-delay: 0.8s; }
.delay-5 { transition-delay: 1.0s; }

/* Feature cards stagger */
.feature-card.reveal:nth-child(1) { transition-delay: 0.05s; }
.feature-card.reveal:nth-child(2) { transition-delay: 0.15s; }
.feature-card.reveal:nth-child(3) { transition-delay: 0.25s; }
.feature-card.reveal:nth-child(4) { transition-delay: 0.35s; }
.feature-card.reveal:nth-child(5) { transition-delay: 0.45s; }
.feature-card.reveal:nth-child(6) { transition-delay: 0.55s; }

/* Trust cards stagger */
.trust-card.reveal:nth-child(1) { transition-delay: 0.05s; }
.trust-card.reveal:nth-child(2) { transition-delay: 0.15s; }
.trust-card.reveal:nth-child(3) { transition-delay: 0.25s; }
.trust-card.reveal:nth-child(4) { transition-delay: 0.35s; }

/* Parallax subtle effect */
.parallax-bg {
    will-change: transform;
}

/* Smooth section transitions */
section {
    position: relative;
}

/* Gallery item animations */
.gallery-item.active {
    animation: galleryIn 0.6s ease forwards;
}

@keyframes galleryIn {
    from {
        opacity: 0;
        transform: scale(0.96);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Floating CTA bounce */
@keyframes floatBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.floating-cta.visible .float-inquiry {
    animation: floatBounce 3s ease infinite;
    animation-delay: 2s;
}

/* Nav link hover underline */
@keyframes navUnderline {
    from { width: 0; }
    to { width: 100%; }
}

/* Stat counter pulse */
.stat-number.counting {
    color: var(--color-accent);
    transition: color 0.3s ease;
}

/* Form submit loading */
.form-submit.loading {
    position: relative;
    color: transparent;
}

.form-submit.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: formSpin 0.8s linear infinite;
}

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

/* Image lightbox effect */
.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0);
    transition: background 0.3s ease;
    pointer-events: none;
}

.gallery-item:hover::after {
    background: rgba(0,0,0,0.1);
}

/* Scroll indicator fade */
.hero-scroll {
    animation: scrollFade 3s ease infinite;
}

@keyframes scrollFade {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}