/* 
  Advanced Interaction Styles
  Oriental Medical Clinic - MH-003
*/

:root {
    --anim-speed: 1s;
    --anim-curve: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: var(--grad-premium);
    z-index: 1001;
    transition: width 0.1s linear;
}

/* Parallax Utility */
.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

@media (max-width: 1024px) {
    .parallax-bg {
        background-attachment: scroll;
    }

    /* Disable on mobile for performance */
}

/* Enhanced Reveal Effects */
[data-reveal] {
    opacity: 0;
    transition:
        opacity 1.5s cubic-bezier(0.16, 1, 0.3, 1),
        transform 1.5s cubic-bezier(0.16, 1, 0.3, 1),
        filter 1.5s cubic-bezier(0.16, 1, 0.3, 1);
    filter: blur(10px);
}

[data-reveal="fade-up"] {
    transform: translateY(80px);
}

[data-reveal="fade-down"] {
    transform: translateY(-80px);
}

[data-reveal="fade-left"] {
    transform: translateX(80px);
}

[data-reveal="fade-right"] {
    transform: translateX(-80px);
}

[data-reveal="zoom-out"] {
    transform: scale(1.1);
}

[data-reveal="zoom-in"] {
    transform: scale(0.9);
}

[data-reveal].active {
    opacity: 1;
    transform: translate(0, 0) scale(1);
    filter: blur(0px);
}

/* Parallax Container Force */
.parallax-wrap {
    overflow: hidden;
    position: relative;
}

.parallax-bg {
    position: absolute;
    top: -20%;
    left: 0;
    width: 100%;
    height: 140%;
    object-fit: cover;
    will-change: transform;
}

/* Staggering Children */
.reveal-group>* {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s var(--anim-curve);
}

.reveal-group.active>*:nth-child(1) {
    transition-delay: 0.1s;
    opacity: 1;
    transform: translateY(0);
}

.reveal-group.active>*:nth-child(2) {
    transition-delay: 0.2s;
    opacity: 1;
    transform: translateY(0);
}

.reveal-group.active>*:nth-child(3) {
    transition-delay: 0.3s;
    opacity: 1;
    transform: translateY(0);
}

.reveal-group.active>*:nth-child(4) {
    transition-delay: 0.4s;
    opacity: 1;
    transform: translateY(0);
}

.reveal-group.active>*:nth-child(5) {
    transition-delay: 0.5s;
    opacity: 1;
    transform: translateY(0);
}

/* Interactive Hover Effects for Scrolling Content */
.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

/* Text Highlight Animation */
.highlight-text {
    position: relative;
    display: inline-block;
}

.highlight-text::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 30%;
    background: var(--primary-light);
    z-index: -1;
    transition: width 1s ease 0.5s;
}

.highlight-text.active::after {
    width: 100%;
}

/* Image Reveal Mask */
.img-mask {
    position: relative;
    overflow: hidden;
}

.img-mask::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-dark);
    transform: translateX(-100%);
    transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.img-mask.active::after {
    transform: translateX(100%);
}

.img-mask img {
    opacity: 0;
    transition: opacity 0.1s 0.4s;
}

.img-mask.active img {
    opacity: 1;
}