:root {

  /* Base */
  --color-bg-main: #fff8e8;
  --color-bg-soft: #fff4d1;
  --color-card: rgba(255, 255, 255, 0.78);
  --color-card-blue: rgba(234, 245, 246, 0.86);

  /* Brand */
  --color-primary: #1572a3;
  --color-primary-hover: #0f5f89;
  --color-secondary: #5db3c9;
  --color-secondary-hover: #469db3;
  --color-accent-blue: #9aced8;
  --color-accent-blue-soft: #bad4d7;
  --color-accent-pink: #fad7d2;

  /* Text */
  --color-text-main: #12384a;
  --color-text-sub: #4f6f7b;
  --color-text-muted: #7b9199;
  --color-text-inverse: #ffffff;

  /* Border */
  --color-border: rgba(21, 114, 163, 0.18);
  --color-border-soft: rgba(21, 114, 163, 0.1);

  /* Status */
  --color-success: #2f9e6d;
  --color-success-bg: #e7f7ef;
  --color-warning: #d98c1f;
  --color-warning-bg: #fff1df;
  --color-danger: #d95c5c;
  --color-danger-bg: #fdeaea;
  --color-info: #1572a3;
  --color-info-bg: #eaf5f6;

  /* Radius */
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-soft: 0 8px 24px rgba(18, 56, 74, 0.08);
  --shadow-card: 0 16px 40px rgba(18, 56, 74, 0.1);
  --shadow-card-strong: 0 22px 56px rgba(18, 56, 74, 0.14);
  --shadow-button: 0 10px 24px rgba(21, 114, 163, 0.2);

  /* Motion */
  --transition-soft: 0.18s ease;
}


* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(250, 215, 210, 0.42), transparent 28%),
    radial-gradient(circle at top right, rgba(154, 206, 216, 0.45), transparent 30%),
    linear-gradient(180deg, #fff8e8 0%, #eef8fa 100%);
  color: var(--color-text-main);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 28px;
}

.auth-checking {
  visibility: hidden;
}


.header-title-area {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 5px;
  height: 85px;
  background-color: var(--color-primary);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo {
  display: block;
  width: 60px;
  height: 60px;
  padding: 6px;
  margin-left: 15px;
  object-fit: contain;
  background: transparent;
}

.header-brand > div {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--color-accent-blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-title-area h1 {
  margin: 0;
  font-size: 42px;
  letter-spacing: 0.04em;
  font-family: "Anton", Impact, "Arial Black", sans-serif;
  font-weight: 400;
  line-height: 1;
}

.menu-toggle {
  display: none;
  border: none;
  border-radius: 10px;
  padding: 8px 12px;
  margin-right: 16px;
  background: var(--color-card);
  color: var(--color-primary);
  font-size: 22px;
  font-weight: 800;
  cursor: pointer;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: 16px;
}

.nav-button {
  display: flex;
  align-items: center;
  gap: 6px;
  border: none;
  border-radius: var(--radius-pill);
  padding: 10px 14px;
  background: transparent;
  color: rgba(255, 255, 255, 0.82);
  text-align: center;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background var(--transition-soft),
    color var(--transition-soft);
}

.nav-button:hover,
.nav-button.active {
  background: var(--color-accent-blue);
  color: var(--color-primary);
}


.layout {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
  display: block;
}

.content {
  min-width: 0;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}


.hero-card,
.card {
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, rgba(154, 206, 216, 0.2), transparent 34%),
    radial-gradient(circle at bottom left, rgba(250, 215, 210, 0.18), transparent 30%),
    var(--color-card);
  color: var(--color-text-main);
  box-shadow: var(--shadow-card);
}

.card {
  margin-bottom: 24px;
  padding: 24px;
}

.card h2,
.card h3 {
  margin-bottom: 18px;
}

.primary-button {
  width: 100%;
  margin-top: 22px;
  border: none;
  border-radius: var(--radius-md);
  padding: 15px 18px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-inverse);
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(21, 114, 163, 0.22);
  transition:
    transform var(--transition-soft),
    box-shadow var(--transition-soft),
    filter var(--transition-soft);
}

.primary-button:hover {
  filter: brightness(1.04);
  transform: translateY(-1px);
  box-shadow: 0 16px 34px rgba(21, 114, 163, 0.26);
}

.primary-button:disabled {
  background: rgba(186, 212, 215, 0.72);
  color: var(--color-text-muted);
  box-shadow: none;
  transform: none;
  filter: none;
  cursor: not-allowed;
}

.status {
  display: inline-block;
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  font-size: 14px;
  font-weight: 800;
}

.status.stopped {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid rgba(217, 92, 92, 0.28);
}

.status.starting {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid rgba(217, 140, 31, 0.28);
}

.status.running {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(47, 158, 109, 0.28);
}

.status.unavailable {
  background: #edf3f4;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-soft);
}


.hero-card {
  margin-bottom: 24px;
  padding: 32px;
  background:
    radial-gradient(circle at top right, rgba(154, 206, 216, 0.45), transparent 34%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(234, 245, 246, 0.9));
}

.hero-card h2 {
  margin-bottom: 10px;
  color: var(--color-primary);
  font-size: 30px;
}

.hero-card p {
  max-width: 680px;
  color: var(--color-text-sub);
  line-height: 1.8;
}

.server-status-card {
  position: relative;
  width: calc(100% - 64px);
  margin: 24px auto;
  border: none;
  overflow: hidden;
}

.server-status-card::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 2px;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(21, 114, 163, 0.85),
    rgba(93, 179, 201, 0.45),
    rgba(154, 206, 216, 0)
  );
  pointer-events: none;
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
}

.status-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border-soft);
}

.status-row span {
  color: var(--color-text-sub);
}

.server-address {
  color: var(--color-primary);
  font-weight: 800;
}

.small-note {
  margin-top: 14px;
  margin-bottom: 0;
  color: var(--color-text-sub);
  font-size: 13px;
  line-height: 1.7;
}


.info-grid {
  width: calc(100% - 64px);
  margin: 0 auto 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.info-section {
  display: flex;
  flex-direction: column;
}

.info-section-title,
.info-card-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-section-title {
  margin: 0 0 10px 4px;
}

.info-section-title h3,
.info-card-title h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1;
}

.info-card {
  flex: 1;
  min-height: 190px;
}

.info-card-icon {
  display: block;
  width: 24px;
  height: 24px;
  object-fit: contain;
  flex-shrink: 0;
  transform: translateY(-1px);
}

.info-list {
  display: grid;
  gap: 12px;
}

.info-item {
  padding: 12px 0;
  border-top: 1px solid var(--color-border-soft);
}

.info-item:first-child {
  border-top: none;
  padding-top: 0;
}

.info-item time {
  display: block;
  margin-bottom: 5px;
  color: var(--color-text-muted);
  font-size: 12px;
  font-weight: 700;
}

.info-item h4 {
  margin: 0 0 6px;
  color: var(--color-text-main);
  font-size: 15px;
  line-height: 1.45;
}

.info-item p {
  margin: 0;
  color: var(--color-text-sub);
  font-size: 13px;
  line-height: 1.6;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;

  margin-top: 14px;
  border: 1px solid rgba(21, 114, 163, 0.18);
  border-radius: 999px;
  padding: 7px 12px;

  background: rgba(255, 255, 255, 0.62);
  color: var(--color-primary);

  font-family: inherit;
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;

  cursor: pointer;
  box-shadow: 0 6px 16px rgba(18, 56, 74, 0.06);

  transition:
    background var(--transition-soft),
    color var(--transition-soft),
    border-color var(--transition-soft),
    box-shadow var(--transition-soft),
    transform var(--transition-soft),
    filter var(--transition-soft);
}

.more-link:hover {
  background:
    linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-color: transparent;
  color: var(--color-text-inverse);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(21, 114, 163, 0.18);
}

.more-link:active {
  transform: translateY(0);
}

.more-link:focus-visible {
  outline: 3px solid rgba(93, 179, 201, 0.36);
  outline-offset: 3px;
}

.notice-list,
.log-list,
.rule-list {
  margin: 0;
  padding-left: 20px;
  color: var(--color-text-sub);
  line-height: 1.8;
}


.section-heading {
  margin: 0 0 20px;
  text-align: center;
}

.section-heading-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.section-heading-main h3 {
  margin: 0;
  color: var(--color-primary);
  font-size: 34px;
  letter-spacing: 0.04em;
  font-family: "Anton", Impact, "Arial Black", sans-serif;
  font-weight: 400;
  line-height: 1;
}

.section-heading-text {
  margin: 10px 0 0;
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
}

.section-heading-icon {
  display: block;
  width: 24px;
  height: 24px;
  object-fit: contain;
  flex-shrink: 0;
  transform: translateY(-1px);
}


.event-section {
  width: calc(100% - 64px);
  margin: 0 auto 24px;
}

.event-list {
  display: grid;
  gap: 14px;
}

.event-row {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 16px;
  padding: 16px;
  border-radius: 18px;
  background: var(--color-card);
  border: 1px solid var(--color-border-soft);
  box-shadow: var(--shadow-card);
}

.event-date-box {
  display: grid;
  place-items: center;
  align-content: center;
  min-height: 76px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.event-day {
  color: var(--color-text-inverse);
  font-size: 30px;
  line-height: 1;
}

.event-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.event-title-row h4,
.event-content h4 {
  margin: 0;
}

.event-content h4 {
  margin-bottom: 6px;
  color: var(--color-primary-hover);
  font-size: 17px;
  line-height: 1.4;
}

.event-content p {
  margin: 0 0 8px;
  color: var(--color-text-sub);
  font-size: 13px;
  line-height: 1.6;
}

.event-time {
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
}

.event-status {
  display: inline-block;
  flex-shrink: 0;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: var(--color-info-bg);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.2;
}

.event-status-planned {
  background: var(--color-warning-bg);
  border-color: rgba(217, 140, 31, 0.28);
  color: var(--color-warning);
}

.event-detail-link {
  display: inline-block;
  margin-top: 10px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
}

.event-detail-link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

.event-month-control {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
}

.month-button {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-card);
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  transition:
    background var(--transition-soft),
    border-color var(--transition-soft),
    color var(--transition-soft);
}

.month-button:hover {
  background: var(--color-card-blue);
  border-color: var(--color-secondary);
  color: var(--color-primary-hover);
}

.month-button-icon {
  display: block;
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.no-event-message {
  display: none;
  margin: 18px 0 0;
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: var(--color-text-inverse);
  text-align: center;
  font-size: 14px;
}


.join-scroll-section {
  position: relative;
  width: 100%;
  height: 480vh;
}

.join-scroll-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: clamp(32px, 7vh, 72px) 32px 24px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.join-scroll-heading {
  flex-shrink: 0;
  margin-bottom: 10px;
}

.join-scroll-heading .section-heading-main h3 {
  font-size: clamp(42px, 6vw, 72px);
  letter-spacing: 0.06em;
  line-height: 1;
}

.join-scroll-heading .section-heading-text {
  margin-top: 6px;
}

.join-progress {
  width: calc(100% - 64px);
  max-width: 1120px;
  margin: 0 auto 12px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
}

.join-progress-label {
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.join-progress-bar {
  height: 8px;
  border-radius: var(--radius-pill);
  background: rgba(21, 114, 163, 0.16);
  overflow: hidden;
}

.join-progress-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
}

.join-progress strong {
  color: var(--color-primary);
  font-size: 13px;
}

.join-step-window {
  width: calc(100% - 64px);
  max-width: 1120px;
  margin: 0 auto 28px;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.join-step-track {
  display: flex;
  gap: 24px;
  will-change: transform;
  transition: transform 0.08s linear;
}

.join-slide-card {
  flex: 0 0 100%;
  max-width: 100%;
  min-height: 370px;
  padding: 38px 46px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(93, 179, 201, 0.34), transparent 38%),
    radial-gradient(circle at bottom left, rgba(250, 215, 210, 0.36), transparent 34%),
    linear-gradient(135deg, #ffffff 0%, #eaf5f6 52%, #d8eef2 100%);
  border: 1px solid rgba(21, 114, 163, 0.18);
  box-shadow: var(--shadow-card);
}

.join-slide-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-info-bg);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.join-slide-card h2 {
  margin: 0 0 18px;
  color: var(--color-primary);
  font-size: 40px;
  line-height: 1.25;
}

.join-slide-card p {
  max-width: 760px;
  margin: 0;
  color: var(--color-text-sub);
  font-size: 17px;
  line-height: 1.9;
  line-break: strict;
  word-break: normal;
  overflow-wrap: normal;
}

.join-slide-card strong {
  color: var(--color-primary);
}

.join-after-section {
  position: absolute;
  left: 50%;
  bottom: 24px;
  z-index: 50;
  width: calc(100% - 64px);
  max-width: 1120px;
  margin: 0;
  transform: translate(-50%, 120%);
  opacity: 0;
  pointer-events: none;
}

.join-after-section.is-visible {
  pointer-events: auto;
}

.join-after-section h2 {
  margin-bottom: 18px;
}

.join-note-section {
  margin-bottom: 32px;
}

.join-note-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.join-note-list li {
  position: relative;
  padding: 14px 16px 14px 42px;
  border-radius: var(--radius-md);
  background: var(--color-card);
  border: 1px solid var(--color-border-soft);
  color: var(--color-text-sub);
  font-size: 14px;
  line-height: 1.7;
  box-shadow: var(--shadow-soft);
}

.join-note-list li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 23px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-secondary);
}


.information-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 18px;
}

.information-filter-button {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
  transition:
    background var(--transition-soft),
    color var(--transition-soft),
    border-color var(--transition-soft),
    filter var(--transition-soft);
}

.information-filter-button:hover,
.information-filter-button.active {
  background:
    linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-color: transparent;
  color: var(--color-text-inverse);
}

.information-list {
  display: grid;
  gap: 14px;
}

.information-item {
  padding: 18px;
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(154, 206, 216, 0.2), transparent 34%),
    var(--color-card);
  border: 1px solid var(--color-border-soft);
  box-shadow: var(--shadow-soft);
}

.information-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.information-category {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  padding: 4px 10px;
  border-radius: 999px;

  background: var(--color-info-bg);
  border: 1px solid var(--color-border);
  color: var(--color-primary);

  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
}

.information-category-notice {
  background: var(--color-info-bg);
  color: var(--color-primary);
}

.information-category-news {
  background: rgba(234, 245, 246, 0.9);
  color: var(--color-primary);
}

.information-category-incident {
  background: var(--color-warning-bg);
  border-color: rgba(217, 140, 31, 0.28);
  color: var(--color-warning);
}

.information-item time {
  color: var(--color-text-muted);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.information-item h4 {
  margin: 0 0 8px;
  color: var(--color-text-main);
  font-size: 16px;
  line-height: 1.5;
}

.information-item p {
  margin: 0;
  color: var(--color-text-sub);
  font-size: 14px;
  line-height: 1.7;
}

.information-empty-message {
  margin: 0;
  padding: 18px;
  border-radius: 18px;
  background: var(--color-card-blue);
  border: 1px solid var(--color-border-soft);
  color: var(--color-text-sub);
  text-align: center;
  font-size: 14px;
}

.information-board-card {
  margin-top: 0;
}

.information-page-heading {
  width: calc(100% - 64px);
  max-width: 1120px;
  margin: 24px auto 22px;
  text-align: center;
}

.information-page-heading .eyebrow {
  margin: 0 0 10px;
  color: var(--color-secondary);
}

.information-page-heading .section-heading-main {
  justify-content: center;
}

.information-page-heading .section-heading-main h3 {
  margin: 0;
  color: var(--color-primary);
  font-size: clamp(42px, 6vw, 64px);
  letter-spacing: 0.06em;
  font-family: "Anton", Impact, "Arial Black", sans-serif;
  font-weight: 400;
  line-height: 1;
}

.information-page-heading .section-heading-text {
  margin: 12px auto 0;
  max-width: 680px;
  color: var(--color-text-sub);
  font-size: 14px;
  line-height: 1.8;
}

@media (max-width: 768px) {
  .information-item-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}


.mypage-layout {
  width: calc(100% - 64px);
  max-width: 1120px;
  margin: 24px auto;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 18px;
  align-items: start;
}

.mypage-side-nav {
  position: sticky;
  top: 105px;
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, rgba(154, 206, 216, 0.32), transparent 38%),
    linear-gradient(180deg, rgba(21, 114, 163, 0.96), rgba(15, 95, 137, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-card);
}

.mypage-side-header {
  margin-bottom: 8px;
}

.mypage-label {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--color-accent-blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.mypage-side-header h2 {
  margin: 0;
  color: var(--color-text-inverse);
  font-size: 26px;
  line-height: 1.2;
}

.mypage-tab-button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse);
  font-size: 14px;
  font-weight: 900;
  text-align: left;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition:
    background var(--transition-soft),
    color var(--transition-soft),
    border-color var(--transition-soft);
}

.mypage-tab-button:hover,
.mypage-tab-button.active {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.86);
  color: var(--color-primary);
}

.mypage-tab-icon {
  width: 22px;
  height: 22px;
  object-fit: contain;
  flex-shrink: 0;
}

.mypage-detail-area {
  min-width: 0;
  display: flex;
}

.mypage-detail-panel {
  display: none;
  width: 100%;
  min-height: calc(100vh - 150px);
  background: var(--color-card);
  color: var(--color-text-main);
}

.mypage-detail-panel.active {
  display: block;
}

.mypage-detail-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.mypage-detail-heading h2 {
  margin: 0;
  color: var(--color-primary);
  font-size: 34px;
  line-height: 1.2;
}

.mypage-status-ready {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  background: var(--color-success-bg);
  border: 1px solid rgba(47, 158, 109, 0.28);
  color: var(--color-success) !important;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.mypage-profile-main {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
  padding: 20px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, rgba(154, 206, 216, 0.35), transparent 34%),
    var(--color-card-blue);
  border: 1px solid var(--color-border-soft);
}

.mypage-avatar {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 76px;
  height: 76px;
  border-radius: var(--radius-lg);
  background: var(--color-card);
  border: 1px solid var(--color-border);
}

.mypage-avatar-image {
  width: 100%;
  height: 100%;
  border-radius: 22px;
  object-fit: cover;
  display: block;
}

.mypage-avatar-icon {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.mypage-profile-main h3 {
  margin: 0 0 8px;
  color: var(--color-primary);
  font-size: 22px;
}

.mypage-profile-main p {
  margin: 0;
  color: var(--color-text-sub);
  font-size: 14px;
  line-height: 1.8;
}

.mypage-data-list {
  display: grid;
  gap: 12px;
}

.mypage-data-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--color-border-soft);
}

.mypage-data-row:first-child {
  border-top: none;
  padding-top: 0;
}

.mypage-data-row span {
  color: var(--color-text-muted);
  font-size: 14px;
}

.mypage-data-row strong {
  color: var(--color-text-main);
  font-size: 14px;
  text-align: right;
  word-break: keep-all;
}

.mypage-achievement-list {
  display: grid;
  gap: 14px;
}

.mypage-achievement-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border-radius: 18px;
  background: var(--color-card-blue);
  border: 1px solid var(--color-border-soft);
}

.mypage-achievement-mark {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 900;
}

.mypage-achievement-item.unlocked .mypage-achievement-mark {
  background: var(--color-success-bg);
  border: 1px solid rgba(47, 158, 109, 0.28);
  color: var(--color-success);
}

.mypage-achievement-item.locked {
  opacity: 0.72;
}

.mypage-achievement-item.locked .mypage-achievement-mark {
  background: #edf3f4;
  border: 1px solid var(--color-border-soft);
  color: var(--color-text-muted);
}

.mypage-achievement-item h3 {
  margin: 0 0 6px;
  color: var(--color-text-main);
  font-size: 16px;
}

.mypage-achievement-item p {
  margin: 0;
  color: var(--color-text-sub);
  font-size: 14px;
  line-height: 1.7;
}

.mypage-profile-value-action {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.mypage-inline-button {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
}

.mypage-inline-button:hover {
  background: var(--color-card-blue);
}

.mypage-inline-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.minecraft-id-edit-panel {
  margin-top: 12px;
  padding: 16px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at top right, rgba(250, 215, 210, 0.22), transparent 34%),
    rgba(234, 245, 246, 0.78);
}

.minecraft-id-edit-message {
  margin: 0 0 12px;
  color: var(--color-text-sub);
  line-height: 1.7;
}

.minecraft-id-edit-form {
  display: flex;
  gap: 10px;
}

.minecraft-id-edit-form input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--color-text-main);
  font-size: 14px;
}

.minecraft-id-edit-form input::placeholder {
  color: var(--color-text-muted);
}

.minecraft-id-edit-form button {
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-inverse);
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 8px 20px rgba(21, 114, 163, 0.18);
}

.minecraft-id-edit-form button:hover {
  filter: brightness(1.04);
}

.minecraft-id-edit-help {
  margin: 10px 0 0;
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.6;
}


.page-top-button {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 100;

  display: grid;
  place-items: center;

  width: 46px;
  height: 46px;
  border: 1px solid rgba(21, 114, 163, 0.22);
  border-radius: 999px;

  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.56), transparent 36%),
    linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-inverse);

  font-size: 20px;
  font-weight: 900;
  line-height: 1;

  cursor: pointer;
  box-shadow: 0 12px 28px rgba(21, 114, 163, 0.22);

  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);

  transition:
    opacity 0.18s ease,
    visibility 0.18s ease,
    transform 0.18s ease,
    filter 0.18s ease;
}

.page-top-button-icon {
  width: 22px;
  height: 22px;
  object-fit: contain;
  display: block;
  pointer-events: none;
}

.page-top-button.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-top-button:hover {
  filter: brightness(1.04);
  transform: translateY(-2px);
}

.page-top-button:active {
  transform: translateY(0);
}

@media (max-width: 768px) {
  .page-top-button {
    right: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
    font-size: 18px;
  }
}


.site-footer {
  width: calc(100% - 64px);
  max-width: 1120px;
  margin: 40px auto 24px;
  padding: 20px 24px;
  border-top: 1px solid var(--color-border-soft);
  color: var(--color-text-muted);
  text-align: center;
  font-size: 12px;
  line-height: 1.7;
}

.site-footer p {
  margin: 0;
}

.site-footer-note {
  margin-top: 6px;
  font-size: 11px;
}


@media (max-width: 960px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .side-nav {
    position: static;
    grid-template-columns: repeat(2, 1fr);
  }

  .grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .header-title-area {
    position: relative;
  }

  .menu-toggle {
    display: block;
  }

  .header-nav {
    display: flex;
    position: absolute;
    top: 85px;
    left: 0;
    right: 0;
    z-index: 10;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 100%;
    margin-right: 0;
    padding: 0 16px;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    border-radius: 0;
    background: var(--color-primary);
    border-top: 0 solid rgba(255, 255, 255, 0.18);
    border-bottom: 0 solid rgba(255, 255, 255, 0.18);
    transition:
      max-height 0.28s ease,
      opacity 0.2s ease,
      transform 0.28s ease,
      padding 0.28s ease,
      border-width 0.28s ease;
  }

  .header-nav.open {
    max-height: 80vh;
    overflow-y: auto;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    padding: 14px 16px;
    border-top-width: 1px;
    border-bottom-width: 1px;
  }

  .nav-button {
    justify-content: flex-start;
    width: 100%;
    padding: 14px 16px;
  }

  .info-grid {
    width: calc(100% - 32px);
    grid-template-columns: 1fr;
  }

  .join-scroll-section {
    height: 500vh;
  }

  .join-scroll-sticky {
    padding: 28px 16px 20px;
    justify-content: flex-start;
  }

  .join-scroll-heading {
    margin-bottom: 8px;
  }

  .join-scroll-heading .section-heading-main h3 {
    font-size: clamp(38px, 10vw, 48px);
    letter-spacing: 0.06em;
    line-height: 1;
  }

  .join-progress {
    width: calc(100% - 32px);
    margin: 0 auto 10px;
  }

  .join-step-window {
    width: calc(100% - 32px);
    margin: 0 auto 22px;
    border-radius: var(--radius-lg);
  }

  .join-slide-card {
    min-height: 340px;
    padding: 24px 22px;
    border-radius: var(--radius-lg);
  }

  .join-slide-card h2 {
    font-size: 26px;
    margin-bottom: 12px;
  }

  .join-slide-card p {
    font-size: 14px;
    line-height: 1.75;
    line-break: strict;
    word-break: normal;
    overflow-wrap: normal;
  }

  .join-slide-number {
    margin-bottom: 16px;
  }

  .join-after-section {
    bottom: 20px;
    width: calc(100% - 32px);
    margin: 0;
  }

  .join-after-section h2 {
    font-size: 22px;
    margin-bottom: 14px;
  }

  .join-note-list {
    gap: 8px;
  }

  .join-note-list li {
    padding: 12px 14px 12px 36px;
    font-size: 13px;
    line-height: 1.6;
  }

  .join-note-list li::before {
    left: 16px;
    top: 20px;
  }

  .mypage-layout {
    width: calc(100% - 32px);
    grid-template-columns: 1fr;
  }

  .mypage-side-nav {
    position: static;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 14px;
    border-radius: 20px;
  }

  .mypage-side-header {
    display: none;
  }

  .mypage-tab-button {
    flex: 0 0 auto;
    width: auto;
    white-space: nowrap;
  }

  .mypage-detail-area {
    display: block;
  }

  .mypage-detail-panel {
    min-height: auto;
  }

  .mypage-detail-heading {
    flex-direction: column;
  }

  .mypage-detail-heading h2 {
    font-size: 28px;
  }

  .mypage-profile-main {
    align-items: flex-start;
  }

  .mypage-profile-value-action {
    align-items: flex-start;
    flex-direction: column;
  }

  .mypage-avatar {
    width: 58px;
    height: 58px;
    border-radius: 18px;
  }

  .mypage-avatar-icon {
    width: 28px;
    height: 28px;
  }

  .mypage-data-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .mypage-data-row strong {
    text-align: left;
  }

  .minecraft-id-edit-form {
    flex-direction: column;
  }

  .minecraft-id-edit-form button {
    width: 100%;
  }
}