/* PAGE TRANSITION ANIMATIONS - Portfolio Design System */

:root {
    --transition-duration: 700ms;
    --transition-easing: cubic-bezier(0.77, 0, 0.175, 1);
}

/* ================================
   BASE TRANSITION OVERLAY
   ================================ */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    z-index: 9999;
    pointer-events: none;
    overflow: hidden;
}

.page-transition.active {
    height: 100%;
}

/* ================================
   STYLE 1: CURTAIN WIPE
   ================================ */
.page-transition.curtain {
    background: #000000;
    transform: scaleX(0);
    transform-origin: left;
}

.page-transition.curtain.active {
    pointer-events: all;
    animation: curtainIn var(--transition-duration) var(--transition-easing) forwards;
}

.page-transition.curtain.out {
    animation: curtainOut var(--transition-duration) var(--transition-easing) forwards;
}

@keyframes curtainIn {
    0% {
        transform: scaleX(0);
        transform-origin: left;
    }
    50% {
        transform: scaleX(1);
        transform-origin: left;
    }
    50.1% {
        transform-origin: right;
    }
    100% {
        transform: scaleX(0);
        transform-origin: right;
    }
}

@keyframes curtainOut {
    0% {
        transform: scaleX(0);
        transform-origin: left;
    }
    100% {
        transform: scaleX(1);
        transform-origin: left;
    }
}

/* ================================
   STYLE 2: CIRCLE EXPAND
   ================================ */
.page-transition.circle {
    background: #000000;
    clip-path: circle(0% at 50% 50%);
}

.page-transition.circle.active {
    pointer-events: all;
    animation: circleExpand var(--transition-duration) var(--transition-easing) forwards;
}

@keyframes circleExpand {
    0% {
        clip-path: circle(0% at 50% 50%);
    }
    50% {
        clip-path: circle(100% at 50% 50%);
    }
    100% {
        clip-path: circle(100% at 50% 50%);
        opacity: 0;
    }
}

/* ================================
   STYLE 3: DIAGONAL WIPE
   ================================ */
.page-transition.diagonal {
    background: #000000;
    clip-path: polygon(0 0, 0 0, 0 100%, 0% 100%);
}

.page-transition.diagonal.active {
    pointer-events: all;
    animation: diagonalWipe var(--transition-duration) var(--transition-easing) forwards;
}

@keyframes diagonalWipe {
    0% {
        clip-path: polygon(0 0, 0 0, 0 100%, 0% 100%);
    }
    50% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
    }
    100% {
        clip-path: polygon(100% 0, 100% 0, 100% 100%, 100% 100%);
    }
}

/* ================================
   STYLE 4: SPLIT REVEAL
   ================================ */
.page-transition.split::before,
.page-transition.split::after {
    content: '';
    position: fixed;
    width: 100%;
    height: 50%;
    background: #000000;
    left: 0;
    z-index: 1;
    will-change: transform;
}

.page-transition.split::before {
    top: 0;
    transform: translateY(-100%);
}

.page-transition.split::after {
    bottom: 0;
    transform: translateY(100%);
}

.page-transition.split.active::before,
.page-transition.split.active::after {
    pointer-events: all;
    animation: splitCover 0.6s var(--transition-easing) forwards;
}

@keyframes splitCover {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(0);
    }
}

.page-transition.split.active::before {
    animation: splitTop var(--transition-duration) var(--transition-easing) forwards;
}

.page-transition.split.active::after {
    animation: splitBottom var(--transition-duration) var(--transition-easing) forwards;
}

@keyframes splitTop {
    0% {
        transform: translateY(-100%);
    }
    50% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-100%);
    }
}

@keyframes splitBottom {
    0% {
        transform: translateY(100%);
    }
    50% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(100%);
    }
}

/* Revealing animation - panels slide out */
.page-transition.split.revealing::before {
    animation: splitTopReveal var(--transition-duration) var(--transition-easing) forwards;
}

.page-transition.split.revealing::after {
    animation: splitBottomReveal var(--transition-duration) var(--transition-easing) forwards;
}

@keyframes splitTopReveal {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-100%);
    }
}

@keyframes splitBottomReveal {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(100%);
    }
}

/* ================================
   STYLE 5: PIXEL DISSOLVE
   ================================ */
.page-transition.pixel {
    background: #000000;
    opacity: 0;
}

.page-transition.pixel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px);
    animation: pixelate 0.6s steps(20) forwards;
    opacity: 0;
}

.page-transition.pixel.active {
    pointer-events: all;
    animation: pixelFade var(--transition-duration) ease-in-out forwards;
}

.page-transition.pixel.active::before {
    opacity: 1;
}

@keyframes pixelFade {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

@keyframes pixelate {
    0% {
        filter: blur(0px);
    }
    50% {
        filter: blur(10px);
    }
    100% {
        filter: blur(0px);
    }
}

/* ================================
   STYLE 6: GLITCH TRANSITION
   ================================ */
.page-transition.glitch {
    background: #000000;
    opacity: 0;
}

.page-transition.glitch.active {
    pointer-events: all;
    animation: glitchTransition 0.8s steps(2) forwards;
}

@keyframes glitchTransition {
    0% {
        opacity: 1;
        transform: translate(0);
    }
    20% {
        opacity: 1;
        transform: translate(-5px, 5px);
    }
    40% {
        opacity: 1;
        transform: translate(5px, -5px);
    }
    60% {
        opacity: 1;
        transform: translate(-5px, -5px);
    }
    80% {
        opacity: 1;
        transform: translate(5px, 5px);
    }
    100% {
        opacity: 0;
        transform: translate(0);
    }
}

/* ================================
   STYLE 7: SLIDE STACK
   ================================ */
.page-transition.slide {
    display: flex;
}

.page-transition.slide::before,
.page-transition.slide::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: #000000;
}

.page-transition.slide::before {
    left: -100%;
    background: #1a1a1a;
}

.page-transition.slide::after {
    left: -100%;
    background: #000000;
}

.page-transition.slide.active::before {
    animation: slideLayer1 var(--transition-duration) var(--transition-easing) forwards;
}

.page-transition.slide.active::after {
    animation: slideLayer2 var(--transition-duration) var(--transition-easing) 0.1s forwards;
}

@keyframes slideLayer1 {
    0% {
        left: -100%;
    }
    50% {
        left: 0%;
    }
    100% {
        left: 100%;
    }
}

@keyframes slideLayer2 {
    0% {
        left: -100%;
    }
    50% {
        left: 0%;
    }
    100% {
        left: 100%;
    }
}

/* ================================
   STYLE 8: CORNER REVEAL
   ================================ */
.page-transition.corner {
    background: #000000;
    clip-path: polygon(0 0, 0 0, 0 0, 0 0);
}

.page-transition.corner.active {
    pointer-events: all;
    animation: cornerReveal var(--transition-duration) var(--transition-easing) forwards;
}

@keyframes cornerReveal {
    0% {
        clip-path: polygon(0 0, 0 0, 0 0, 0 0);
    }
    25% {
        clip-path: polygon(0 0, 100% 0, 0 0, 0 0);
    }
    50% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 0);
    }
    75% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    100% {
        clip-path: polygon(100% 0, 100% 0, 100% 100%, 100% 100%);
    }
}

/* ================================
   STYLE 9: MOSAIC BLOCKS
   ================================ */
.page-transition.mosaic {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    grid-template-rows: repeat(6, 1fr);
    background: transparent;
}

.mosaic-block {
    background: #000000;
    opacity: 0;
}

.page-transition.mosaic.active .mosaic-block {
    pointer-events: all;
    animation: mosaicFade 0.4s ease-out forwards;
}

/* Stagger animation for mosaic blocks */
.mosaic-block:nth-child(1) { animation-delay: 0s; }
.mosaic-block:nth-child(2) { animation-delay: 0.02s; }
.mosaic-block:nth-child(3) { animation-delay: 0.04s; }
.mosaic-block:nth-child(4) { animation-delay: 0.06s; }
.mosaic-block:nth-child(5) { animation-delay: 0.08s; }
.mosaic-block:nth-child(6) { animation-delay: 0.1s; }
.mosaic-block:nth-child(7) { animation-delay: 0.12s; }
.mosaic-block:nth-child(8) { animation-delay: 0.14s; }
.mosaic-block:nth-child(9) { animation-delay: 0.16s; }
.mosaic-block:nth-child(10) { animation-delay: 0.18s; }

@keyframes mosaicFade {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    50% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(1);
    }
}

/* ================================
   CONTENT TRANSITIONS
   ================================ */
.page-content {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Removed body transitioning classes - they were hiding content */

/* ================================
   RESPONSIVE
   ================================ */
@media (max-width: 768px) {
    :root {
        --transition-duration: 600ms;
    }
    
    .page-transition.mosaic {
        grid-template-columns: repeat(6, 1fr);
        grid-template-rows: repeat(4, 1fr);
    }
}