/* ========================================================
   CHAOS CALL — ローディング画面 §16対応
   ======================================================== */

.cc-loading-screen {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, var(--cc-bg) 0%, var(--cc-bg-2) 50%, var(--cc-bg) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    opacity: 1;
    transition: opacity 0.8s ease-out 0.2s;
    font-family: var(--cc-font-ui);
    overflow: hidden;
}

.cc-loading-screen.is-fade-out {
    opacity: 0;
    pointer-events: none;
}

/* ========================================
   サイバー空間風ドット背景
   ・全面に細かいドット格子
   ・左上／右下にほんのり明るいクラスター
   ======================================== */
.cc-loading-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.55;
    background-image:
        radial-gradient(circle, rgba(0, 229, 232, 0.16) 1px, transparent 1.6px);
    background-size: 22px 22px;
}

.cc-loading-dots-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.cc-loading-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

/* ========================================
   HUDボックス：ロゴとリングを同一の基準ボックスに収める
   → 常に同心円（中心が一致した状態）になる
   ======================================== */
.cc-loading-hud {
    position: relative;
    width: 200px;
    height: 200px;
}

/* ロゴ：HUDボックス中央に絶対配置 */
.cc-loading-logo-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 130px;
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.cc-loading-logo {
    width: 96px;
    height: 96px;
    object-fit: contain;
    filter: drop-shadow(0 0 14px var(--cc-cyan));
    animation: cc-logo-pulse 2s ease-in-out infinite;
}

@keyframes cc-logo-pulse {
    0%, 100% { filter: drop-shadow(0 0 14px var(--cc-cyan)); transform: scale(1); }
    50%      { filter: drop-shadow(0 0 26px var(--cc-cyan)); transform: scale(1.04); }
}

/* スピナー：HUDボックスいっぱいに広がる（ロゴと同じ中心） */
.cc-loading-spinner {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.cc-spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid transparent;
}

.cc-spinner-ring.ring-1 {
    border-top-color: var(--cc-cyan);
    border-right-color: var(--cc-teal);
    animation: cc-ring-spin 3s linear infinite;
    filter: drop-shadow(0 0 3px rgba(0, 229, 232, 0.5));
}
.cc-spinner-ring.ring-2 {
    width: 150px; height: 150px; top: 25px; left: 25px;
    border-top-color: var(--cc-purple);
    border-right-color: var(--cc-cyan);
    animation: cc-ring-spin-reverse 4s linear infinite;
    filter: drop-shadow(0 0 3px rgba(157, 92, 255, 0.4));
}
.cc-spinner-ring.ring-3 {
    width: 100px; height: 100px; top: 50px; left: 50px;
    border-top-color: var(--cc-cyan);
    border-right-color: var(--cc-magenta);
    animation: cc-ring-spin 5s linear infinite;
    filter: drop-shadow(0 0 3px rgba(0, 229, 232, 0.5));
}

@keyframes cc-ring-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}
@keyframes cc-ring-spin-reverse {
    from { transform: rotate(360deg); }
    to   { transform: rotate(0deg); }
}

/* ========================================
   リングのグリッチ演出
   ・リング自体は常に回転を続ける（アニメーションを止めない）
   ・.cc-loading-hud （外側の箱）だけを一定間隔で震わせることで
     「回転しながら、時々ブレる」という見え方にする
   ======================================== */
@keyframes cc-glitch-shake {
    0%   { transform: translate(0, 0); filter: blur(0); }
    15%  { transform: translate(-6px, 4px); filter: blur(1.6px); }
    30%  { transform: translate(5px, -5px); filter: blur(0.8px); }
    45%  { transform: translate(-4px, 3px); filter: blur(1.4px); }
    60%  { transform: translate(6px, -3px); filter: blur(0.6px); }
    75%  { transform: translate(-3px, 2px); filter: blur(1px); }
    90%  { transform: translate(2px, -2px); filter: blur(0.3px); }
    100% { transform: translate(0, 0); filter: blur(0); }
}

.cc-loading-hud.is-glitching {
    animation: cc-glitch-shake 0.4s steps(9) 1;
}

/* RGBズレ（クロマティックアベレーション風）の残像レイヤー */
.cc-loading-hud.is-glitching::before,
.cc-loading-hud.is-glitching::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    z-index: 3;
    opacity: 0.55;
    mix-blend-mode: screen;
    animation: cc-glitch-shake 0.4s steps(9) 1;
}

.cc-loading-hud.is-glitching::before {
    border: 3px solid var(--cc-magenta);
    transform: translateX(-8px);
}

.cc-loading-hud.is-glitching::after {
    border: 3px solid var(--cc-purple);
    transform: translateX(8px);
}

/* ========================================
   プログレスバー（テキストの上に表示）
   ======================================== */
.cc-loading-progress {
    width: 220px;
    height: 2px;
    background: rgba(0, 229, 232, 0.15);
    border-radius: 2px;
    overflow: hidden;
}

.cc-loading-progress__bar {
    width: 0%;
    height: 100%;
    background: var(--cc-cyan);
    box-shadow: 0 0 8px var(--cc-cyan);
    /* 実際の幅はJS(loading.js)がローディング時間(2.5秒)に同期させて制御する */
    transition: width 2.3s linear;
}

/* ========================================
   ステータステキスト（タイプライター演出）
   ======================================== */
.cc-loading-status-text {
    color: var(--cc-cyan);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    text-shadow: 0 0 8px var(--cc-cyan);
    text-transform: uppercase;
    white-space: nowrap;
}

.cc-loading-typewriter {
    display: inline-block;
}

.cc-loading-cursor {
    display: inline-block;
    margin-left: 2px;
    animation: cc-cursor-blink 0.8s step-end infinite;
}

@keyframes cc-cursor-blink {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0; }
}

/* ノイズエフェクト（ローディング完了時に1回だけ走る＝ページ切り替え演出のベーステクスチャ） */
@keyframes cc-noise-scan {
    0%   { opacity: 0.6; }
    12%  { opacity: 0.85; }
    30%  { opacity: 0.55; }
    100% { opacity: 0; }
}

.cc-loading-screen.has-noise::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(0deg, rgba(255,255,255,0.08), rgba(255,255,255,0.08) 1px, transparent 1px, transparent 3px),
        repeating-linear-gradient(90deg, rgba(0,229,232,0.14), rgba(0,229,232,0.14) 2px, transparent 2px, transparent 4px);
    pointer-events: none;
    animation: cc-noise-scan 0.6s ease-out forwards;
    z-index: 5;
}

/* ========================================
   画面切り替え時の本格グリッチ演出
   §16後半：loading.jsが動的に生成する
   .cc-glitch-bar 群 + 反転/色相フラッシュ
   ======================================== */

.cc-glitch-transition {
    position: absolute;
    inset: 0;
    z-index: 8;
    pointer-events: none;
    overflow: hidden;
}

.cc-glitch-bar {
    position: absolute;
    left: 0;
    width: 100%;
    will-change: transform;
    mix-blend-mode: screen;
}

.cc-glitch-static-canvas {
    position: absolute;
    inset: 0;
    z-index: 9;
    pointer-events: none;
    mix-blend-mode: screen;
}

/* 画面切り替え時のフラッシュ：色数を絞り、一瞬の反転のみに留める（目の負担軽減） */
@keyframes cc-screen-flash {
    0%   { filter: none; }
    18%  { filter: invert(1) contrast(1.3) grayscale(0.3); }
    40%  { filter: none; }
    100% { filter: none; }
}

.cc-loading-screen.cc-screen-glitch-flash {
    animation: cc-screen-flash 0.35s steps(1, end);
}

@media (max-width: 768px) {
    .cc-loading-hud { width: 150px; height: 150px; }
    .cc-loading-logo { width: 72px; height: 72px; }
    .cc-spinner-ring.ring-2 { width: 110px; height: 110px; top: 20px; left: 20px; }
    .cc-spinner-ring.ring-3 { width: 70px; height: 70px; top: 40px; left: 40px; }
    .cc-loading-progress { width: 170px; }
    .cc-loading-status-text { font-size: 11px; letter-spacing: 2px; }
}