/* ========================================
   OKPW — Scroll Animations & Effects
   ======================================== */

/* ── Reveal on Scroll ── */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
    transition-delay: var(--delay, 0s);
}
.reveal-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Magnetic hover effect for buttons ── */
.btn {
    position: relative;
    overflow: hidden;
}
.btn::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s var(--ease-out-expo), height 0.6s var(--ease-out-expo);
}
.btn:hover::before {
    width: 300px; height: 300px;
}

/* ── Service card shimmer ── */
.service-card::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
    transition: left 0.6s var(--ease-out-expo);
}
.service-card:hover::after {
    left: 100%;
}

/* ── Project card zoom ── */
.project-card {
    overflow: hidden;
}
.project-card .project-placeholder {
    transition: transform 0.8s var(--ease-out-expo);
}

/* ── Stagger children ── */
.stagger-children > * {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo);
}
.stagger-children.visible > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.08s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.16s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.24s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.32s; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.4s; }
.stagger-children.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* ── Parallax text shimmer on hero title ── */
.hero-title--accent {
    position: relative;
    background: linear-gradient(90deg, var(--olive-light), #8FBC8F, var(--olive-light));
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmerText 4s ease-in-out infinite;
}
@keyframes shimmerText {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ── Floating animation for tag dot ── */
.tag-dot {
    animation: pulse 2s ease-in-out infinite, float 3s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* ── Nav link underline slide ── */
.nav-link {
    position: relative;
    overflow: hidden;
}

/* ── Review card quote marks ── */
.review-card::before {
    content: '"';
    position: absolute;
    top: 20px; right: 28px;
    font-family: var(--font-display);
    font-size: 5rem;
    line-height: 1;
    color: var(--gray-100);
    pointer-events: none;
    transition: color 0.3s;
}
.review-card:hover::before {
    color: rgba(85, 107, 47, 0.1);
}
.review-card {
    position: relative;
    overflow: hidden;
}

/* ── Focus styles ── */
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
}

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

/* ── Loading skeleton for images ── */
.project-placeholder {
    position: relative;
    overflow: hidden;
}
.project-placeholder::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
    animation: skeleton 2s infinite;
}
@keyframes skeleton {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ── Hover glow on social links ── */
.social-link:hover {
    box-shadow: 0 0 20px rgba(85, 107, 47, 0.2);
}

/* ── Stats count-up animation ── */
.stat-item {
    position: relative;
}
.stat-item::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 0; height: 2px;
    background: var(--olive);
    transition: width 0.6s var(--ease-out-expo);
}
.stat-item:hover::after {
    width: 40px;
}

/* ── Contact form field focus animation ── */
.form-group {
    position: relative;
}
.form-group label {
    transition: color 0.3s;
}
.form-group:focus-within label {
    color: var(--olive);
}

/* ── Mobile-specific: always show project overlays ── */
@media (max-width: 768px) {
    .project-overlay {
        opacity: 1 !important;
    }
    .project-arrow {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal-up { opacity: 1; transform: none; }
    .hero-title--accent { animation: none; -webkit-text-fill-color: var(--olive-light); }
}