:root {
  --color-magenta: #ef6895;
  --color-purple: #6f36d5;
  --color-purple-dark: #402f5e;
  --color-purple-accent: #b134ff;
  --color-yellow: #ffcc34;
  --color-mint: #69f8c6;
  --color-cream: #f8f0eb;
  --color-black: #1b1920;
  --color-white: #ffffff;

  --font-display: "Dela Gothic One", sans-serif;
  --font-body: "IBM Plex Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background-color: var(--color-cream);
}

/* ==========================================================================
   Block: event-page
   ========================================================================== */

.event-page {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background-color: var(--color-cream);
}

.event-page__container {
  position: relative;
  z-index: 1;
  max-width: 1133px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 32px 100px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 40px;
}

/* ==========================================================================
   Element: bg (decorative background shapes)
   ========================================================================== */

.event-page__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.event-page__bg-panel {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  bottom: 0;
  width: 64.3%;
  background-color: var(--color-purple);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 91.13% 100%, 0 100%);
}

.event-page__bg-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("./dot-pattern.png");
  background-size: 160px 160px;
  background-position: top left;
  opacity: 0.2;
}

.event-page__bg-panel::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200%;
  height: 200%;
  background-image: url("./type-bg.png");
  background-size: 420px 420px;
  background-position: top left;
  background-blend-mode: overlay;
  mix-blend-mode: overlay;
  transform: translate(-50%, -50%) rotate(-14deg);
  animation: typeBgScroll 10s linear infinite;
}

@keyframes typeBgScroll {
  from { background-position: 0 0; }
  to   { background-position: -420px 0px; }
}

@media (prefers-reduced-motion: reduce) {
  .event-page__bg-panel::after {
    animation: none;
  }
}

.event-page__bg::before {
  content: "";
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image: url("./dot-pattern.png");
  background-size: 160px 160px;
  background-position: top left;
  opacity: 0.2;
}

.event-page__bg-shapes {
  position: fixed;
  z-index: 0;
  inset: 0;
  width: 110%;
  height: 110%;
  object-fit: contain;
  object-position: right 100px;
}

/* ==========================================================================
   Element: header
   ========================================================================== */

.event-page__header {
  display: flex;
  align-items: center;
  gap: 24px;
}

.event-page__logo {
  display: block;
  width: 140px;
  height: 50px;
}

.event-page__nav-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 64px;
  padding: 0 32px;
  border-radius: 40px;
  border: 4px solid color-mix(in srgb, var(--color-black) 40%, transparent);
  background-color: color-mix(in srgb, var(--color-black) 20%, transparent);
  backdrop-filter: blur(12px);
  text-decoration: none;
  transition: all 100ms ease;
}

.event-page__nav-button:hover {
  border-color: color-mix(in srgb, var(--color-black) 60%, transparent);
  background-color: color-mix(in srgb, var(--color-black) 40%, transparent);
}

.event-page__nav-button:active {
  border-color: color-mix(in srgb, var(--color-black) 80%, transparent);
  background-color: color-mix(in srgb, var(--color-black) 60%, transparent);
}

.event-page__nav-button__icon {
  width: 24px;
  height: 24px;
}

.event-page__nav-button__text {
  font-family: var(--font-display);
  font-weight: 400;
  font-synthesis: none;
  font-size: 16px;
  color: var(--color-white);
  white-space: nowrap;
}

/* ==========================================================================
   Element: body / main / side
   ========================================================================== */

.event-page__body {
  display: flex;
  align-items: start;
  justify-content: start;
  gap: 24px;
  flex-wrap: wrap;
}

.event-page__main {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  flex: 1 1 0;
  min-width: 320px;
  position: relative;
}

.event-page__side {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex: 0 0 auto;
  width: 360px;
}

/* ==========================================================================
   Element: heading / tag / title
   ========================================================================== */

.event-page__heading {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.event-page__tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 16px;
  background-color: var(--color-magenta);
  font-family: var(--font-display);
  font-weight: 400;
  font-synthesis: none;
  font-size: 12px;
  color: var(--color-black);
}

.event-page__title {
  position: relative;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-synthesis: none;
  font-size: 44px;
  line-height: 1;
  letter-spacing: -0.02em;
  word-break: break-word;
  paint-order: stroke fill;
  -webkit-text-stroke: 8px #402f5e;
  text-stroke: 8px #402f5e;
}

.event-page__title::before {
  content: attr(data-text);
  position: absolute;
  top: 0px;
  left: 0;
  paint-order: fill;
  color: #fff;
  -webkit-text-stroke: 0.4px #402F5E;
  pointer-events: none;
}

/* ==========================================================================
   Element: divider
   ========================================================================== */

.event-page__divider {
  width: 120px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(to right, var(--color-mint) 1.2%, var(--color-yellow) 99.8%);
}

/* ==========================================================================
   Element: info / date / message
   ========================================================================== */

.event-page__info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.event-page__date,
.event-page__message {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 24px 40px;
  border-radius: 8px 32px 32px 32px;
  background-color: color-mix(in srgb, var(--color-black) 20%, transparent);
  backdrop-filter: blur(12px);
  will-change: transform;
}

.event-page__date {
  gap: 12px;
}

.event-page__date__icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
}

.event-page__date__text {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-synthesis: none;
  color: var(--color-white);
  white-space: nowrap;
}

.event-page__date__num {
  font-size: 32px;
  line-height: 1.2;
}

.event-page__date__unit {
  font-size: 24px;
  line-height: 1.2;
}

.event-page__message {
  flex-direction: column;
  align-items: flex-start;
}

.event-page__message p {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-white);
}

/* 空行 (段落の区切り) も 1 行分の高さを保つ */
.event-page__message p:empty::before {
  content: "\00a0";
}

/* ==========================================================================
   Element: accent (decorative triangles next to title)
   ========================================================================== */

.event-page__accent {
  position: absolute;
  left: -100px;
  top: 0;
  width: 81px;
  height: 62px;
  pointer-events: none;
}

.event-page__accent__image {
  display: block;
  width: 100%;
  height: 100%;
}

/* ==========================================================================
   Element: banner
   ========================================================================== */

.event-page__banner {
  width: 100%;
  aspect-ratio: 1.91 / 1;
  border-radius: 16px;
}

.event-page__banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

/* ==========================================================================
   Element: entry (Entry Button component)
   --------------------------------------------------------------------------
   States (toggle by swapping the modifier class on .event-page__entry):
     - event-page__entry--waiting : 開催前 (受付前 / ロック表示)
     - event-page__entry--live     : 開催中 (入場可能)
     - event-page__entry--closed   : 終了 (受付終了)
   ========================================================================== */

.event-page__entry {
  width: 100%;
}

.event-page__entry__panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 24px;
  border-radius: 32px;
  background-color: rgba(64, 47, 94, 0.8);
  backdrop-filter: blur(12px);
  will-change: transform;
}

.event-page__entry__label {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.2;
  color: var(--color-white);
}

.event-page__entry__button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  pointer-events: auto;
  cursor: pointer;
  gap: 8px;
  width: 100%;
  height: 80px;
  padding: 0 32px;
  text-decoration: none;
}

/* bg-1: outer layer / bg-2: inner layer (4px border + fill) */
.event-page__entry__button-bg-1,
.event-page__entry__button-bg-2 {
  position: absolute;
  z-index: 0;
  inset: 0;
  border-radius: 999px;
  pointer-events: none;
  transition: inset 100ms ease;
}

.event-page__entry__button-bg-2 {
  inset: 6px;
  border: 4px solid transparent;
}

.event-page__entry__button-icon {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
}

.event-page__entry__button-text {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 400;
  font-synthesis: none;
  font-size: 32px;
  line-height: 1;
  text-align: left;
  white-space: nowrap;
  transition: all 100ms ease;
  -webkit-text-stroke: 0.4px #a1e890;
}

/* --live (開催中): panel wrapper is removed, only the button is shown */
.event-page__entry--live .event-page__entry__panel {
  display: contents;
}

/* --waiting (開催前): locked, inactive (Disabled) button, two-layer like --live */
.event-page__entry--waiting .event-page__entry__button {
  opacity: 0.4;
  cursor: default;
}

.event-page__entry--waiting .event-page__entry__button-bg-1 {
  background: var(--color-black);
}

.event-page__entry--waiting .event-page__entry__button-bg-2 {
  background: #4d4d4d;
  border: none;
}

.event-page__entry--waiting .event-page__entry__button-text {
  color: var(--color-white);
  -webkit-text-stroke: 0.4px #5b5369;
}

/* --live (開催中): active gradient button, no label text */
.event-page__entry--live .event-page__entry__label {
  display: none;
}

/* Default: bg-1 = black outer layer, bg-2 = white border + gradient inner layer */
.event-page__entry--live .event-page__entry__button-bg-1 {
  background: var(--color-black);
}

.event-page__entry--live .event-page__entry__button-bg-2 {
  background: linear-gradient(to right, var(--color-mint) 1.2%, var(--color-yellow) 99.8%);
  border-color: var(--color-white);
}

.event-page__entry--live .event-page__entry__button-text {
  color: var(--color-black);
}

/* Hover: bg-1 = gradient (expanded +12px), bg-2 = black no border (expanded +12px), gradient text */
.event-page__entry--live .event-page__entry__button:hover .event-page__entry__button-bg-1 {
  inset: -6px;
  background: linear-gradient(to right, var(--color-mint) 1.2%, var(--color-yellow) 99.8%);
}

.event-page__entry--live .event-page__entry__button:hover .event-page__entry__button-bg-2 {
  inset: 4px;
  background: var(--color-black);
  border-color: transparent;
}

.event-page__entry--live .event-page__entry__button:hover .event-page__entry__button-text {
  background: linear-gradient(to right, var(--color-mint) 1.2%, var(--color-yellow) 99.8%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 0.4px #1B1920;
}

/* Pressed: bg-1 = black (default size), bg-2 = gradient no border (default size), black text */
.event-page__entry--live .event-page__entry__button:active .event-page__entry__button-bg-1 {
  inset: 0;
  background: var(--color-black);
}

.event-page__entry--live .event-page__entry__button:active .event-page__entry__button-bg-2 {
  inset: 8px;
  background: linear-gradient(to right, var(--color-mint) 1.2%, var(--color-yellow) 99.8%);
  border: none;
}

.event-page__entry--live .event-page__entry__button:active .event-page__entry__button-text {
  background: none;
  color: var(--color-black);
  -webkit-text-fill-color: var(--color-black);
  -webkit-text-stroke: 0.4px #a1e890;
}

/* --live: arrow icon (left of label), color follows text color via filter */
.event-page__entry__button-icon--arrow {
  display: none;
  filter: invert(1);
  transition: all 100ms ease;
}

/* --live: arrow icon gradient overlay, shown only on Hover (mask-image + gradient background) */
.event-page__entry__button-icon--arrow-gradient {
  display: none;
  background: linear-gradient(to right, var(--color-mint) 1.2%, var(--color-yellow) 99.8%);
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32' fill='none'%3E%3Cpath d='M14.3496 5.01683C15.2608 4.10566 16.7382 4.10577 17.6494 5.01683L26.9824 14.3498C27.8936 15.2611 27.8936 16.7384 26.9824 17.6496L17.6494 26.9827C16.7382 27.8937 15.2608 27.8938 14.3496 26.9827C13.4389 26.0715 13.4387 24.5939 14.3496 23.6828L19.7002 18.3332H6.66602C5.37782 18.3329 4.33326 17.2885 4.33301 16.0002C4.33301 14.7118 5.37767 13.6666 6.66602 13.6662H19.7002L14.3496 8.31664C13.4387 7.40554 13.4389 5.92803 14.3496 5.01683Z' fill='white'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32' fill='none'%3E%3Cpath d='M14.3496 5.01683C15.2608 4.10566 16.7382 4.10577 17.6494 5.01683L26.9824 14.3498C27.8936 15.2611 27.8936 16.7384 26.9824 17.6496L17.6494 26.9827C16.7382 27.8937 15.2608 27.8938 14.3496 26.9827C13.4389 26.0715 13.4387 24.5939 14.3496 23.6828L19.7002 18.3332H6.66602C5.37782 18.3329 4.33326 17.2885 4.33301 16.0002C4.33301 14.7118 5.37767 13.6666 6.66602 13.6662H19.7002L14.3496 8.31664C13.4387 7.40554 13.4389 5.92803 14.3496 5.01683Z' fill='white'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
}

.event-page__entry--live .event-page__entry__button-icon--arrow {
  display: block;
}

.event-page__entry--live .event-page__entry__button-icon:not(.event-page__entry__button-icon--arrow):not(.event-page__entry__button-icon--arrow-gradient) {
  display: none;
}

/* Hover: swap arrow icon for gradient overlay (matches gradient label text) */
.event-page__entry--live .event-page__entry__button:hover .event-page__entry__button-icon--arrow {
  display: none;
}

.event-page__entry--live .event-page__entry__button:hover .event-page__entry__button-icon--arrow-gradient {
  display: block;
}

/* Pressed: arrow icon back to black, gradient overlay hidden */
.event-page__entry--live .event-page__entry__button:active .event-page__entry__button-icon--arrow {
  display: block;
}

.event-page__entry--live .event-page__entry__button:active .event-page__entry__button-icon--arrow-gradient {
  display: none;
}

/* --closed (終了): single message pill, button hidden */
.event-page__entry--closed .event-page__entry__button {
  display: none;
}

.event-page__entry--closed .event-page__entry__label {
  width: 100%;
  text-align: center;
  font-family: var(--font-body);
  font-weight: 400;
  font-synthesis: none;
  font-size: 16px;
}

/* --closed (終了): balloon is hidden alongside the entry message */
.event-page__entry--closed ~ .event-page__balloon {
  display: none;
}

/* ==========================================================================
   Element: balloon
   ========================================================================== */

.event-page__balloon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: -4px;
  padding: 4px 16px 2px 16px;
  border-radius: 100px;
  background-color: color-mix(in srgb, var(--color-black) 40%, transparent);
  backdrop-filter: blur(12px);
  will-change: transform;
}

.event-page__balloon::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 8px;
  background-image: url("./polygon-18.svg");
  background-size: contain;
  background-repeat: no-repeat;
}

.event-page__balloon p {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-white);
  white-space: nowrap;
}

/* ==========================================================================
   Element: actions (download / help buttons)
   ========================================================================== */

.event-page__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

/* Default: black background + white border + white text/icon */
.event-page__action {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  width: 100%;
  height: 64px;
  padding: 0 32px;
  text-decoration: none;
}

/* bg-1: outer layer (always black) / bg-2: inner layer (4px border + fill) */
.event-page__action__bg-1,
.event-page__action__bg-2 {
  position: absolute;
  z-index: 0;
  inset: 0;
  border-radius: 999px;
  pointer-events: none;
  background: var(--color-black);
  transition: inset 100ms ease;
}

.event-page__action__bg-2 {
  inset: 6px;
  border: 4px solid var(--color-white);
}

/* Hover: both layers expand by 12px, bg-2 border becomes gradient (white text/icon unchanged) */
.event-page__action:hover .event-page__action__bg-1 {
  inset: -6px;
}

.event-page__action:hover .event-page__action__bg-2 {
  inset: 0px;
  border-color: transparent;
  background:
    linear-gradient(var(--color-black), var(--color-black)) padding-box,
    linear-gradient(to right, var(--color-mint) 1.2%, var(--color-yellow) 99.8%) border-box;
}

/* Pressed: bg-2 becomes gradient fill, no border, default size */
.event-page__action:active .event-page__action__bg-1 {
  inset: 0;
}

.event-page__action:active .event-page__action__bg-2 {
  inset: 8px;
  background: linear-gradient(to right, var(--color-mint) 1.2%, var(--color-yellow) 99.8%);
  border: none;
}

.event-page__action__icon {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  transition: all 100ms ease;
}

.event-page__action:active .event-page__action__icon {
  filter: invert(1);
}

.event-page__action__text {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 400;
  font-synthesis: none;
  font-size: 20px;
  line-height: 1;
  text-align: left;
  color: var(--color-white);
  white-space: nowrap;
  transition: all 100ms ease;
  -webkit-text-stroke: 0.4px #1B1920;
}

.event-page__action:active .event-page__action__text {
  color: var(--color-black);
}

/* ==========================================================================
   Element: footer
   ========================================================================== */

.event-page__footer {
  width: 100%;
}

.event-page__footer p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.1;
  color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   Responsive (SP)
   ========================================================================== */

@media (max-width: 979px) {
  .event-page__container {
    padding: 32px 24px;
  }

  .event-page__accent {
    display: none;
  }
}

@media (max-width: 824px) {
  .event-page__body {
    gap: 24px;
  }
}

@media (max-width: 824px) {
  .event-page__logo {
    width: 100px;
    height: 36px;
  }
  .event-page__header {
    gap: 16px;
  }
  .event-page__nav-button {
    padding: 0 16px;
  }
  .event-page__container {
    padding: 24px 20px;
  }

  .event-page__body {
    flex-direction: column;
  }

  /* main/side のラッパーを解除し、子要素を直接 order で並び替える */
  .event-page__main,
  .event-page__side {
    display: contents;
  }

  .event-page__banner {
    order: 1;
    width: 100%;
  }

  .event-page__heading {
    order: 2;
    width: 100%;
  }

  .event-page__divider {
    order: 3;
  }

  .event-page__info {
    order: 4;
    width: 100%;
  }

  .event-page__entry {
    order: 5;
  }

  .event-page__balloon {
    order: 6;
  }

  .event-page__actions {
    order: 7;
  }

  .event-page__title {
    font-size: 48px;
    line-height: 1.1;
  }
}

/* ==========================================================================
   Responsive (Mobile)
   ========================================================================== */

@media (max-width: 600px) {
  .event-page__body {
    gap: 16px;
  }

  .event-page__title {
    font-size: 32px;
  }

  .event-page__date__num {
    font-size: 24px;
  }

  .event-page__date__unit {
    font-size: 16px;
  }

  .event-page__entry__button-text {
    font-size: 24px;
  }

  .event-page__action__text {
    font-size: 20px;
  }

  .event-page__date,
  .event-page__message {
    padding: 24px;
  }
}

/* ==========================================================================
   PC header background (980px+)
   ========================================================================== */

@media (min-width: 980px) {
  .event-page__header {
    position: relative;
    left: -24px;
    background: color-mix(in srgb, var(--color-black) 20%, transparent);
    backdrop-filter: blur(24px);
    border-radius: 100px;
    overflow: hidden;
    width: fit-content;
    padding: 12px 24px;
  }
}

/* ==========================================================================
   Page entrance animations
   ========================================================================== */

.event-page__bg-panel {
  opacity: 0;
  transform: translateX(-120px);
}

.event-page__main,
.event-page__side {
  opacity: 0;
}

.event-page__bg-panel.is-visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 800ms cubic-bezier(0.25, 0, 0, 1),
              transform 800ms cubic-bezier(0.25, 0, 0, 1);
}

.event-page__main.is-visible,
.event-page__side.is-visible {
  opacity: 1;
  transition: opacity 1200ms cubic-bezier(0.25, 0, 0, 1);
}

@media (max-width: 824px) {
  .event-page__bg-panel {
    transform: none;
  }
}