/* ========================================
   Loading Root
======================================== */

.c-loading {
  position: fixed;
  inset: 0;
  z-index: 9999;
  overflow: hidden;
  background: #f1f1f1;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  clip-path: inset(0 0 0 0);
  will-change: clip-path, opacity;
  transition:
    opacity 0.6s ease,
    visibility 0.6s ease,
    clip-path 1.2s cubic-bezier(0.1, 0.99, 0, 1);
}

.c-loading::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: #86c4c7;
  opacity: 0.1;
  pointer-events: none;
  mix-blend-mode: multiply;
}

html.is-loading .c-loading {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
  clip-path: inset(0 0 0 0);
  transition:
    opacity 0.8s ease,
    visibility 0.8s ease,
    clip-path 1400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

html.is-loading.is-loading-step3 .c-loading {
  clip-path: inset(0 0 100% 0);
}

html.is-loading.is-loading-out .c-loading {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  clip-path: inset(0 0 135% 0);
}

html.is-loading.is-loading-freeze .c-loading {
  clip-path: inset(0 0 100% 0);
  transition-property: opacity, visibility;
}

html.is-loading.is-loading-lock,
html.is-loading.is-loading-lock body {
  overflow: hidden;
}

html.is-loading,
html.is-loading body {
  background: #f1f1f1;
}

/* ========================================
   Skip
======================================== */

.c-loading__skip {
  position: absolute;
  right: 40px;
  bottom: 40px;
  z-index: 20;

  display: flex;
  align-items: center;
  justify-content: space-between;

  width: 105px;
  height: 39px;
  padding: 0 12px;

  background: #fff;
  border: 1px solid #000;

  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #000;

  cursor: pointer;

  transition: opacity 0.5s ease;
}

.c-loading__skip-icon {
  width: 12px;
  height: auto;
  flex-shrink: 0;
  display: block;
}

.c-loading__skip:hover {
  opacity: 0.8;
}

html.is-loading.is-loading-wipein .c-loading__skip,
html.is-loading.is-loading-step3 .c-loading__skip,
html.is-loading.is-loading-out .c-loading__skip {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 1023px) {
  .c-loading__skip {
    right: 16px;
    bottom: 16px;
    min-width: 80px;
    height: 40px;
    padding: 0 16px;
    font-size: 11px;
  }
}

/* ========================================
   Exit Wipe
======================================== */

.c-loading__wipe {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: #f1f1f1;
  pointer-events: none;
  transform: translate3d(0, 100%, 0);
  will-change: transform;
}

html.is-loading.is-loading-wipein .c-loading__wipe {
  transform: translate3d(0, 0%, 0);
  transition: transform 850ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

html.is-loading.is-loading-wipeout .c-loading__wipe {
  transform: translate3d(0, -100%, 0);
  transition: transform 1150ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ========================================
   Surface
======================================== */

.c-loading__surface {
  position: absolute;
  inset: -10%;
  z-index: 0;
  background:
    radial-gradient(
      1200px 800px at 50% 50%,
      rgba(0, 0, 0, 0.05),
      rgba(0, 0, 0, 0) 60%
    ),
    radial-gradient(
      900px 600px at 55% 45%,
      rgba(0, 0, 0, 0.03),
      rgba(0, 0, 0, 0) 65%
    );
  filter: blur(3px) contrast(102%) brightness(101%);
  opacity: 0.9;
  animation: surfaceBreath 6s ease-in-out infinite;
}

@keyframes surfaceBreath {
  0% {
    transform: scale(1.02) translate3d(0, 0, 0);
  }
  50% {
    transform: scale(1.06) translate3d(-0.5%, 0.3%, 0);
  }
  100% {
    transform: scale(1.02) translate3d(0, 0, 0);
  }
}

/* ========================================
   Noise
======================================== */

.c-loading__noise {
  position: absolute;
  inset: -20%;
  z-index: 1;
  opacity: 0.35;
  filter: blur(0.2px);
  background-image:
    radial-gradient(
      circle at 20% 30%,
      rgba(0, 0, 0, 0.035) 0 1px,
      transparent 2px
    ),
    radial-gradient(
      circle at 70% 60%,
      rgba(0, 0, 0, 0.03) 0 1px,
      transparent 2px
    ),
    radial-gradient(
      circle at 40% 80%,
      rgba(0, 0, 0, 0.025) 0 1px,
      transparent 2px
    );
  background-size:
    180px 180px,
    220px 220px,
    260px 260px;
  mix-blend-mode: multiply;
  animation: noiseDrift 5.5s ease-in-out infinite;
}

@keyframes noiseDrift {
  0% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(-1.2%, 0.8%, 0);
  }
  100% {
    transform: translate3d(0, 0, 0);
  }
}

/* ========================================
   Ripple
======================================== */

.c-loading__ripple {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 4;
  width: 12px;
  height: 12px;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.c-loading__ripple i {
  position: absolute;
  inset: 0;
  opacity: 0;
  border-radius: 9999px;
  filter: blur(1px);
  transform: scale(0);
  animation: rippleReal 13s linear infinite;
  will-change: transform, opacity;
}

.c-loading__ripple i:nth-child(1) {
  border: 2px solid rgba(120, 130, 140, 0.42);
  box-shadow:
    0 0 0 1px rgba(120, 130, 140, 0.14) inset,
    0 0 22px rgba(120, 130, 140, 0.22);
  animation-delay: 0s;
}

.c-loading__ripple i:nth-child(2) {
  border: 2px solid rgba(120, 130, 140, 0.34);
  box-shadow: 0 0 32px rgba(120, 130, 140, 0.18);
  animation-delay: 2.6s;
}

.c-loading__ripple i:nth-child(3) {
  border: 2px solid rgba(120, 130, 140, 0.26);
  box-shadow: 0 0 44px rgba(120, 130, 140, 0.15);
  animation-delay: 5.2s;
}

.c-loading__ripple i:nth-child(4) {
  border: 2px solid rgba(120, 130, 140, 0.2);
  box-shadow: 0 0 58px rgba(120, 130, 140, 0.12);
  animation-delay: 7.8s;
}

.c-loading__ripple i:nth-child(5) {
  border: 1px solid rgba(120, 130, 140, 0.14);
  box-shadow: 0 0 90px rgba(120, 130, 140, 0.1);
  filter: blur(1.2px);
  animation-delay: 10.4s;
}

@keyframes rippleReal {
  0% {
    opacity: 0;
    transform: scale(0);
  }
  5% {
    opacity: 1;
  }
  100% {
    opacity: 0.35;
    transform: scale(600);
  }
}

/* ========================================
   Trail Ripple
======================================== */

.c-loading__ripple--trail {
  z-index: 3;
  opacity: 0.55;
}

.c-loading__ripple--trail i {
  border: 2px solid rgba(120, 130, 140, 0.16);
  box-shadow: 0 0 120px rgba(120, 130, 140, 0.1);
  filter: blur(1.2px);
  animation: rippleTrail 18s linear infinite;
}

.c-loading__ripple--trail i:nth-child(1) {
  animation-delay: 0s;
}

.c-loading__ripple--trail i:nth-child(2) {
  animation-delay: 6s;
}

.c-loading__ripple--trail i:nth-child(3) {
  animation-delay: 12s;
}

@keyframes rippleTrail {
  0% {
    opacity: 0;
    transform: scale(0);
  }
  8% {
    opacity: 0.45;
    transform: scale(3);
  }
  45% {
    opacity: 0.35;
    transform: scale(120);
  }
  85% {
    opacity: 0.25;
    transform: scale(520);
  }
  100% {
    opacity: 0;
    transform: scale(620);
  }
}

/* ========================================
   Center Text
======================================== */

.c-loading__center {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 5;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.c-loading__text {
  position: relative;
  margin: 0;
  opacity: 0;
  transition: opacity 0.9s ease;
  will-change: opacity;
}

.c-loading__text.c-loading__text--1 {
  width: 127px;
}

.c-loading__text.c-loading__text--2 {
  position: absolute;
  top: 0;
  left: 50%;
  width: 158px;
  transform: translateX(-50%);
}

@media (max-width: 1023px) {
  .c-loading__text.c-loading__text--1 {
    width: 28.462vw;
  }

  .c-loading__text.c-loading__text--2 {
    width: 35.385vw;
  }
}

.c-loading__text img {
  display: block;
  width: 100%;
  height: auto;
  backface-visibility: hidden;
  transform: translateZ(0);
}

html.is-loading.is-loading-step1 .c-loading__text--1 {
  opacity: 1;
}

html.is-loading.is-loading-step2 .c-loading__text--1 {
  opacity: 0;
}

html.is-loading.is-loading-step2b .c-loading__text--2 {
  opacity: 1;
}

html.is-loading.is-loading-step3 .c-loading__text--2 {
  opacity: 0;
}

@keyframes textRippleGhost {
  0% {
    opacity: 0;
    filter: blur(0.4px);
    transform: translate(-50%, -50%) scale(0.98);
  }
  18% {
    opacity: 0.55;
  }
  45% {
    opacity: 0.4;
  }
  100% {
    opacity: 0;
    filter: blur(1.2px);
    transform: translate(-50%, -50%) scale(1.22);
  }
}

/* ========================================
   BG Image
======================================== */

.c-loading__bg {
  position: absolute;
  inset: 0;
  z-index: 3;
  opacity: 0;
  filter: blur(2.4px);
  background: url("/wp-content/themes/kawasakishokuhin2026/assets/img/loading/loading-bg.jpg")
    center / cover no-repeat;
  transform: scale(0.98);
  will-change: opacity, transform, filter;
  transition:
    opacity 3.2s cubic-bezier(0.18, 0.62, 0.2, 1),
    transform 12s linear,
    filter 4.5s cubic-bezier(0.18, 0.62, 0.2, 1);
}

@media (max-width: 1023px) {
  .c-loading__bg {
    background: url("/wp-content/themes/kawasakishokuhin2026/assets/img/loading/sp/loading-bg.jpg")
      center / cover no-repeat;
  }
}

html.is-loading.is-loading-step2b .c-loading__bg {
  opacity: 0.3;
  filter: blur(0.8px);
  transform: scale(1.14);
}

html.is-loading.is-loading-step3 .c-loading__bg {
  transform: scale(1.14);
}

/* ========================================
   Reduced Motion
======================================== */

@media (prefers-reduced-motion: reduce) {
  .c-loading__surface,
  .c-loading__noise {
    animation: none;
  }

  .c-loading__ripple i {
    opacity: 0.25;
    transform: scale(120);
    animation: none;
  }

  .c-loading__text,
  .c-loading__bg,
  .c-loading {
    transition: none;
  }

  .c-loading__wipe {
    transform: translate3d(0, -100%, 0);
    transition: none;
  }
}