@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;700&family=JetBrains+Mono:wght@200;300;500&display=swap');

body {
    margin: 0;
    overflow: hidden;
    background-color: #000000;
    color: #ffffff;
    font-family: 'Inter', sans-serif;
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}
canvas {
    display: block;
}

/* ウェルカムオーバーレイ */
#welcome-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    pointer-events: all;
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.welcome-content {
    text-align: center;
    font-family: 'JetBrains+Mono', monospace;
}
.access-granted {
    font-size: 1.2rem;
    color: #00ffff;
    letter-spacing: 0.8rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    border: 1px solid #00ffff;
    padding: 0.5rem 1.5rem;
    position: relative;
    overflow: hidden;
}
.access-granted::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.2), transparent);
    animation: scan-line 2s infinite;
}
.welcome-id-display {
    font-size: 0.9rem;
    color: #ffffff;
    letter-spacing: 0.4rem;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}
.welcome-sub {
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 0.2rem;
    text-transform: uppercase;
}
@keyframes scan-line {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* UIオーバーレイコンテナ */
#ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem;
}

/* システム切り替えボタン */
.top-left-control {
    position: fixed;
    top: 2rem;
    left: 2rem;
    pointer-events: auto;
    z-index: 9999;
}
.btn-toggle-system {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.3);
    color: #00ffff;
    padding: 0.5rem 1rem;
    border-radius: 2px;
    font-family: 'JetBrains+Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.1rem;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
    position: relative;
    z-index: 10000;
}
.btn-toggle-system.inactive {
    border-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.3);
}

/* メインメニューボタン */
.top-nav {
    pointer-events: auto;
    display: flex;
    justify-content: center;
    gap: 1rem;
    width: 100%;
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.top-nav.hidden {
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
}
.btn-header {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.6rem 1.2rem;
    border-radius: 2px;
    font-family: 'JetBrains+Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.15rem;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
    cursor: pointer;
    backdrop-filter: blur(4px);
}
.btn-header:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

/* 右上情報パネル */
#active-info-panel {
    position: absolute;
    top: 2rem;
    right: 2rem;
    text-align: right;
    font-family: 'JetBrains+Mono', monospace;
    pointer-events: auto;
    z-index: 50;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
    transition: opacity 0.5s ease;
}
#active-info-panel.hidden { opacity: 0; pointer-events: none; }
.info-session-time { font-size: 0.75rem; color: #ffffff; letter-spacing: 0.08rem; font-weight: 500; }
.btn-view-location { display: inline-flex; align-items: center; gap: 0.4rem; color: #ffffff; font-size: 0.55rem; letter-spacing: 0.1rem; border: 1px solid rgba(255, 255, 255, 0.4); padding: 0.4rem 0.8rem; background: rgba(255, 255, 255, 0.05); transition: all 0.3s ease; cursor: pointer; border-radius: 2px; }
.btn-view-location:hover { background: rgba(255, 255, 255, 0.2); border-color: #ffffff; }

/* 下部中央のユーザーID表示 */
#bottom-id-display {
    position: absolute;
    bottom: 2.2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    font-family: 'JetBrains+Mono', monospace;
    pointer-events: none;
    z-index: 20;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    max-width: 90%;
}
/* インアクティブモード時は上に移動 */
#bottom-id-display.inactive-mode {
    bottom: 8rem;
}
#bottom-id-display::before, #bottom-id-display::after {
    content: '';
    width: 15px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.3));
    flex-shrink: 0;
}
#bottom-id-display::after {
    background: linear-gradient(90deg, rgba(0, 255, 255, 0.3), transparent);
}
.bottom-user-id {
    font-size: 0.85rem;
    color: #00ffff;
    letter-spacing: 0.3rem;
    font-weight: 200;
    opacity: 0.9;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
    display: flex;
    align-items: center;
    white-space: nowrap;
    flex-direction: column;
}
.bottom-user-id .id-label {
    font-size: 0.55rem;
    opacity: 0.4;
    /* margin-right: 1.2rem; */
    letter-spacing: 0.2rem;
}
.user-distance-display {
    font-size: 0.6rem;
    letter-spacing: 0.15rem;
    opacity: 0.7;
}

/* オフライン情報 */
#offline-info {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -380px);
    text-align: center;
    font-family: 'JetBrains+Mono', monospace;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
    width: 100%;
    z-index: 5;
}
#offline-info.active { opacity: 1; pointer-events: auto; }
.offline-tag { color: #ff3333; font-size: 0.8rem; letter-spacing: 0.3rem; text-transform: uppercase; margin-bottom: 0.5rem; }
.next-session { color: rgba(255, 255, 255, 0.7); font-size: 0.6rem; letter-spacing: 0.1rem; margin-bottom: 1.5rem; }
.map-placeholder { display: inline-flex; align-items: center; gap: 0.5rem; color: rgba(255, 255, 255, 0.8); font-size: 0.55rem; letter-spacing: 0.1rem; border: 1px solid rgba(255, 255, 255, 0.3); padding: 0.5rem 1rem; cursor: pointer; transition: all 0.3s ease; background: rgba(255, 255, 255, 0.03); }
.map-placeholder:hover { color: #ffffff; border-color: #ffffff; background: rgba(255, 255, 255, 0.1); transform: translateY(-1px); }

/* カウントダウン表示 */
#countdown-container {
    position: absolute;
    bottom: 4.5rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    font-family: 'JetBrains+Mono', monospace;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 5;
}
#countdown-container.active { opacity: 1; }
/* インアクティブモード時のカウントダウン（offline-info内） */
#offline-info #countdown-container {
    position: static;
    transform: none;
    margin-top: 1rem;
    opacity: 1;
}
.countdown-label { font-size: 0.4rem; letter-spacing: 0.2rem; color: rgba(255, 255, 255, 0.25); text-transform: uppercase; margin-bottom: 0.3rem; }
.countdown-timer { font-size: 0.8rem; font-weight: 200; color: rgba(255, 255, 255, 0.5); letter-spacing: 0.2rem; }

/* ステータスエリア */
.bottom-ui {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    width: 100%;
    padding-bottom: env(safe-area-inset-bottom, 0);
    pointer-events: none;
    margin-top: auto;
}
.status-box { font-family: 'JetBrains+Mono', monospace; display: flex; flex-direction: column; gap: 0.2rem; align-items: center; text-align: center; }
.status-label { font-size: 0.5rem; letter-spacing: 0.15rem; color: rgba(255, 255, 255, 0.3); text-transform: uppercase; }
.status-value { font-size: 1.6rem; font-weight: 200; color: #ffffff; line-height: 1; }

/* パスポートモーダル */
#passport-modal, #message-modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(12px); opacity: 0; pointer-events: none; transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1); }
#passport-modal.active, #message-modal.active { opacity: 1; pointer-events: auto; }
.passport-card { background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); padding: 3rem; border-radius: 8px; width: 90%; max-width: 400px; text-align: center; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5); transform: scale(0.9); transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1); }
#passport-modal.active .passport-card, #message-modal.active .passport-card { transform: scale(1); }
.passport-title { font-family: 'JetBrains+Mono', monospace; font-size: 1.2rem; letter-spacing: 0.5rem; margin-bottom: 2rem; color: #ffffff; text-transform: uppercase; }
.passport-qr { width: 180px; height: 180px; margin: 0 auto 2rem; background: #ffffff; padding: 10px; border-radius: 4px; display: flex; align-items: center; justify-content: center; }
.passport-qr img { width: 100%; height: 100%; image-rendering: pixelated; }
.passport-id-label { font-size: 0.6rem; color: rgba(255, 255, 255, 0.4); margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 0.2rem; }
.passport-id-value { font-family: 'JetBrains+Mono', monospace; font-size: 1.1rem; color: #00ffff; letter-spacing: 0.3rem; }
.btn-close { margin-top: 3rem; background: transparent; border: 1px solid rgba(255, 255, 255, 0.2); color: rgba(255, 255, 255, 0.6); padding: 0.5rem 2rem; font-size: 0.65rem; letter-spacing: 0.1rem; text-transform: uppercase; cursor: pointer; transition: all 0.3s ease; }
.btn-close:hover { border-color: #ffffff; color: #ffffff; }
.btn-close:disabled { cursor: not-allowed; opacity: 0.4; border-color: rgba(255, 255, 255, 0.15); color: rgba(255, 255, 255, 0.35); }
.btn-close:disabled:hover { border-color: rgba(255, 255, 255, 0.15); color: rgba(255, 255, 255, 0.35); }

#message-modal .passport-card { max-width: 520px; }
#message-toast {
    position: fixed;
    left: 50%;
    bottom: 12%;
    transform: translateX(-50%);
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    font-size: 0.6rem;
    letter-spacing: 0.1rem;
    text-transform: uppercase;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}
#message-toast.active {
    opacity: 1;
    transform: translateX(-50%) translateY(-6px);
}
#message-options {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    font-size: 0.7rem;
    letter-spacing: 0.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
}
#message-options label {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    cursor: pointer;
    align-items: center;
}
#message-options input {
    margin-top: 0.2rem;
}
#message-options label span {
    flex: 1;
    padding: 0.7rem 0.9rem;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.03);
    transition: border-color 0.3s ease, background 0.3s ease, color 0.3s ease;
}
#message-options label:hover span {
    border-color: rgba(0, 255, 255, 0.4);
    background: rgba(0, 255, 255, 0.08);
    color: #ffffff;
}
#message-options input:checked + span {
    border-color: #00ffff;
    background: rgba(0, 255, 255, 0.12);
    color: #ffffff;
}

@media (max-width: 840px) {
    .top-nav { justify-content: flex-start; padding-left: 9rem; gap: 0.5rem; }
    #active-info-panel { top: 1rem; right: 1rem; }
    .btn-header { padding: 0.5rem 0.8rem; font-size: 0.55rem; }
    .bottom-user-id { font-size: 0.75rem; letter-spacing: 0.25rem; }
    #bottom-id-display { gap: 0.6rem; }
}

@media (max-width: 640px) {
    #ui-overlay { padding: 1.5rem; }
    .top-left-control { top: 1rem; left: 1rem; }
    .top-nav { padding-left: 0; justify-content: center; margin-top: 4.5rem; } 
    #active-info-panel { top: 0.8rem; right: 0.8rem; gap: 0.3rem; }
    .info-session-time { font-size: 0.6rem; }
    .status-value { font-size: 1.4rem; }
    #offline-info { transform: translate(-50%, -280px); }
    #bottom-id-display::before, #bottom-id-display::after { width: 10px; }
    #bottom-id-display.inactive-mode { bottom: 6rem; }
    .bottom-user-id { letter-spacing: 0.2rem; }
    #bottom-id-display { gap: 0.5rem; max-width: 95%; }
    #message-modal .passport-card { padding: 2rem 1.5rem; }
    #message-options { font-size: 0.65rem; }
}