/*
 * キー・BPM判定・変更(/tools/key-bpm)専用スタイル。
 *
 * アプリ(Flutter)の keybpm_scene.dart / keybpm_widgets.dart = デザイン案 8b の再現。
 * デザイン案にあるのはアップロード画面と結果画面の2枚だけなので、解析中・
 * マイク/タップ・シェアは同じ意匠(プレート/3Dボタン/つまみ)で組んである。
 *
 * 共通の意匠(配色・プレート・丸ボタン・カバー背景・書体・緑と平の大ボタン)は
 * css/web/tools-app-skin.css が持つ。旧スキン(tools.css の .emmu-tool / et- 系)は使わない。
 */

/* 黒背景でも小さい補助文字を読めるようにする(Flutter も画面限定で上げている) */
[data-theme="dark"] .tools-key-bpm-page {
    --eat-text2: #D0C8BA;
    --eat-text3: #B8B0A1;
    --eat-text-faint: #A9A193;
}

.tools-key-bpm-page {
    --kba-off: #C14A38;
    --kba-notice-bg: #E8E4DA;
    --kba-notice-text: #4A453C;
    --kba-rest-grad: linear-gradient(to bottom, var(--eat-sound-rest), var(--eat-sound-rest-bottom));
    --kba-rest-shadow: 0 3px 0 var(--eat-sound-rest-side);
    /* 音符ディスクの目盛り。Flutter は NoteDisc にインラインで 0x4D1C1A11 を持つ */
    --kba-tick: rgba(28, 26, 17, 0.302);
}

[data-theme="dark"] .tools-key-bpm-page {
    --kba-off: #E2614C;
    --kba-notice-bg: #3A3A3A;
    --kba-notice-text: #D8D2C6;
    --kba-rest-grad: linear-gradient(to bottom, #5A5449 0%, #3F392F 48%, #29241D 100%);
    --kba-rest-shadow: 0 11px 14px -3px rgba(0, 0, 0, 0.851), 0 7px 0 #080604, 0 3px 0 #332D24;
    /* ダークは 0x47F0E8D6 */
    --kba-tick: rgba(240, 232, 214, 0.278);
}

/* ============ 骨組み ============ */

.emmu-kba .eat-plate {
    margin-top: 13px;
    padding: 14px 16px 15px;
}

.kba-header {
    display: flex;
    align-items: center;
    padding: 0 4px;
}

.kba-back-ic {
    width: 13px;
    height: 13px;
    fill: var(--eat-text2);
}

.kba-brand {
    margin: 0 9px;
    font-size: 9.5px;
    letter-spacing: 2.28px;
    color: var(--eat-bronze);
}

.kba-title {
    flex: 1;
    min-width: 0;
    margin: 0 8px 0 0;
    font-size: 16px;
    letter-spacing: 0.96px;
    color: var(--eat-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kba-rec {
    flex: none;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-right: 10px;
    padding: 5px 10px;
    border-radius: 8px;
    background: var(--eat-groove);
    font-size: 9.5px;
    letter-spacing: 1.33px;
    color: var(--eat-text2);
    white-space: nowrap;
}

.kba-rec-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--kba-off);
    box-shadow: 0 0 6px var(--kba-off);
}

.kba-privacy {
    margin: 14px 0 0;
    padding: 12px 14px;
    border-radius: 12px;
    background: var(--kba-notice-bg);
    font-size: 11px;
    line-height: 1.7;
    color: var(--kba-notice-text);
}

.kba-label {
    font-size: 9px;
    letter-spacing: 1.98px;
    color: var(--eat-text3);
    white-space: nowrap;
    display: block;
}

.kba-plate-head {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 12px;
}

.kba-plate-head .kba-label {
    flex: none;
}

.kba-file-name {
    flex: 1;
    min-width: 0;
    font-size: 10px;
    color: var(--eat-text2);
    text-align: right;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kba-hair {
    display: block;
    margin: 13px 0;
    height: 1px;
    background: var(--eat-hair);
}

/* ============ 方式の切り替え ============ */

.kba-modes {
    margin-top: 13px;
    padding: 4px;
    border-radius: 12px;
    background: var(--eat-groove);
    box-shadow: 0 2px 3px var(--eat-groove-shadow);
    display: flex;
    gap: 4px;
}

.kba-mode {
    flex: 1;
    min-width: 0;
    padding: 10px 4px;
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 9px;
    background: none;
    color: var(--eat-text2);
    font-family: inherit;
    font-size: 12px;
    white-space: nowrap;
    cursor: pointer;
}

.kba-mode.is-on {
    background: var(--eat-plate-solid);
    border-bottom-color: var(--eat-acc);
    box-shadow: 0 1px 2px var(--eat-groove-shadow);
    color: var(--eat-text);
    font-weight: 500;
}

.kba-error {
    margin: 12px 0 0;
    padding: 11px 14px;
    border-radius: 10px;
    background: var(--kba-notice-bg);
    font-size: 11px;
    line-height: 1.7;
    color: var(--kba-off);
}

/* ============ ファイルの受け口 ============ */

.kba-drop {
    margin-top: 13px;
    padding: 30px 20px;
    border-style: dashed;
    border-width: 2px;
    border-color: var(--eat-rule);
    text-align: center;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.kba-drop.is-over {
    border-color: var(--eat-acc);
}

/* 音符ディスク。Flutter の NoteDisc(keybpm_widgets.dart)と同じ3層で組む。
   1) 外周の目盛りリング  2) 内側の円盤(外径の0.8125倍)  3) 音符「♪」(外径の0.375倍)
   以前は CSS で四分音符を描いていたが、符頭と符幹がつながって見えず崩れていた。
   Flutter 側は U+266A の文字をそのまま明朝で出しているので、こちらも文字にする。 */
.kba-drop-icon {
    position: relative;
    width: 76px;
    height: 76px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* 目盛りリング。9度ごとに40本、外周から内側へ 6.3px。
   Flutter は 1.1px の直線を引いている。ここでは円錐グラデーションの楔で近似し、
   中心角 1.8度(=目盛り中央の半径 34.9px で約1.1px)にそろえた。
   放射状マスクで外周 6.3px の帯だけを残す。 */
.kba-drop-icon::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    border-radius: 50%;
    background: repeating-conic-gradient(
        from -0.9deg,
        var(--kba-tick) 0deg 1.8deg,
        transparent 1.8deg 9deg
    );
    -webkit-mask: radial-gradient(closest-side, transparent calc(100% - 6.3px), #000 calc(100% - 6.3px));
    mask: radial-gradient(closest-side, transparent calc(100% - 6.3px), #000 calc(100% - 6.3px));
}

/* 内側の円盤。76 × 0.8125 = 61.75px(以前の 62px とほぼ同じ大きさ) */
.kba-drop-icon::after {
    content: "";
    position: absolute;
    z-index: 0;
    box-sizing: border-box;
    width: 61.75px;
    height: 61.75px;
    border-radius: 50%;
    background: linear-gradient(to bottom, var(--eat-mold-top), var(--eat-mold-bottom));
    border: 1px solid var(--eat-plate-edge);
    box-shadow: 0 3px 6px var(--eat-mold-shadow);
}

/* 音符。76 × 0.375 = 28.5px。円盤(::after)より前に出す */
.kba-note {
    position: relative;
    z-index: 1;
    font-style: normal;
    font-size: 28.5px;
    line-height: 1;
    color: var(--eat-bronze);
}

.kba-drop-title {
    margin-top: 15px;
    font-size: 19px;
    letter-spacing: 1.14px;
    color: var(--eat-text);
}

.kba-drop-sub {
    margin-top: 6px;
    font-size: 11.5px;
    color: var(--eat-text2);
}

.kba-drop-formats {
    margin-top: 4px;
    font-size: 9.5px;
    letter-spacing: 1.33px;
    color: var(--eat-text3);
}

.kba-pick {
    margin-top: 18px;
    width: auto;
    padding: 14px 28px;
    font-size: 15px;
    letter-spacing: 1.8px;
}

/* ============ 判定結果 ============ */

.kba-detect-row {
    display: flex;
    align-items: stretch;
    gap: 14px;
}

.kba-detect-sep {
    flex: none;
    width: 1px;
    background: var(--eat-hair);
}

.kba-detect-cell {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.kba-cell-label {
    font-size: 8.5px;
    letter-spacing: 1.7px;
    color: var(--eat-text3);
}

.kba-cell-main {
    margin-top: 4px;
    font-size: 54px;
    line-height: 1;
    color: var(--eat-text);
}

.kba-cell-sub {
    margin-top: 6px;
    font-size: 10.5px;
    color: var(--eat-text2);
}

.kba-conf {
    margin-top: 5px;
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--eat-acc);
}

.kba-cell-alt {
    margin-top: 5px;
    font-size: 10px;
    color: var(--eat-text3);
}

.kba-alts {
    margin-top: 6px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}

.kba-alts-label {
    font-size: 10px;
    color: var(--eat-text3);
}

.kba-chip {
    padding: 4px 10px;
    border: none;
    border-radius: 8px;
    background: var(--eat-groove);
    box-shadow: 0 1px 2px var(--eat-groove-shadow);
    color: var(--eat-text2);
    font-size: 11px;
    cursor: pointer;
}

/* ============ 変更して再生 ============ */

.kba-reset {
    flex: 1;
    min-width: 0;
    padding: 0;
    border: none;
    background: none;
    color: var(--eat-text2);
    font-family: inherit;
    font-size: 10.5px;
    text-align: right;
    text-decoration: underline;
    cursor: pointer;
}

.kba-change-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.kba-change-col {
    flex: 1;
    min-width: 0;
}

.kba-change-label {
    font-size: 11.5px;
    color: var(--eat-text2);
}

.kba-change-value {
    margin-top: 5px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.kba-change-num {
    flex: 1;
    min-width: 0;
    font-size: 34px;
    line-height: 1.1;
    color: var(--eat-text);
    text-align: center;
    white-space: nowrap;
}

.kba-change-sub {
    margin-top: 4px;
    display: block;
    font-size: 10px;
    color: var(--eat-text3);
}

/* 成形の丸ボタン */
.kba-mold {
    flex: none;
    width: 38px;
    height: 38px;
    padding: 0;
    border: 1px solid var(--eat-mold-edge);
    border-radius: 50%;
    background: linear-gradient(to bottom, var(--eat-mold-top), var(--eat-mold-bottom));
    box-shadow: 0 2px 3px var(--eat-mold-shadow);
    color: var(--eat-mold-glyph);
    font-size: 17px;
    line-height: 1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.kba-mold:active {
    background: linear-gradient(to bottom, var(--eat-mold-bottom), var(--eat-mold-top));
    box-shadow: 0 1px 1px var(--eat-mold-shadow);
}

.kba-knob-col {
    flex: none;
    width: 62px;
    touch-action: none;
}

.kba-knob {
    width: 62px;
    height: 62px;
}

/* ─── 再生と音量 ─── */

.kba-play-row {
    margin-top: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.kba-play {
    flex: 1;
    min-width: 0;
    padding: 16px;
    gap: 11px;
    border-radius: 17px;
    font-size: 17px;
    letter-spacing: 2.38px;
}

.kba-tri {
    width: 12px;
    height: 15px;
    background: var(--eat-on-acc);
    clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.kba-square {
    width: 12px;
    height: 12px;
    background: var(--eat-on-acc);
}

.kba-mic-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--eat-on-acc);
}

.kba-mic-square {
    width: 11px;
    height: 11px;
    border-radius: 2px;
    background: var(--eat-sound-rest-text);
}

.kba-volume {
    flex: none;
    width: 62px;
    touch-action: none;
    text-align: center;
}

.kba-volume-head {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
}

.kba-volume-label {
    font-size: 9px;
    color: var(--eat-text2);
}

.kba-volume-val {
    font-size: 9.5px;
    color: var(--eat-text2);
}

.kba-volume-knob {
    margin-top: 4px;
    width: 62px;
    height: 62px;
}

/* ─── 進み具合と保存 ─── */

.kba-prog {
    margin-top: 12px;
    height: 6px;
    border-radius: 3px;
    background: var(--eat-groove);
    box-shadow: inset 0 1px 2px var(--eat-groove-shadow);
    overflow: hidden;
}

.kba-prog-bar {
    display: block;
    height: 100%;
    width: 0;
    border-radius: 3px;
    background: linear-gradient(to bottom, var(--eat-acc-lit), var(--eat-acc), var(--eat-slider-bottom));
    transition: width 200ms ease-out;
}

.kba-status {
    margin: 10px 0 0;
    font-size: 10.5px;
    line-height: 1.7;
    color: var(--eat-text2);
}

.kba-save-row,
.kba-share-row {
    margin-top: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.kba-save-label {
    flex: none;
    font-size: 11px;
    color: var(--eat-text2);
}

.kba-smallbtn {
    flex: none;
    padding: 9px 16px;
    border: none;
    border-radius: 10px;
    background: var(--kba-rest-grad);
    box-shadow: var(--kba-rest-shadow);
    color: var(--eat-sound-rest-text);
    font-family: inherit;
    font-size: 11.5px;
    white-space: nowrap;
    cursor: pointer;
}

.kba-smallbtn--wide {
    flex: 1;
    min-width: 0;
    padding: 11px 8px;
}

/* ============ マイク・タップ ============ */

.kba-input-label {
    flex: none;
    font-size: 9px;
    color: var(--eat-text2);
}

.kba-mic-meter {
    flex: 1;
    min-width: 0;
    height: 8px;
    border-radius: 4px;
    background: var(--eat-groove);
    box-shadow: inset 0 1px 2px var(--eat-groove-shadow);
    overflow: hidden;
}

.kba-mic-level {
    display: block;
    height: 100%;
    width: 0;
    background: var(--eat-acc);
}

.kba-mic-main {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 11px;
}

.kba-mic-bpm {
    font-size: 68px;
    line-height: 0.9;
    color: var(--eat-text);
}

.kba-mic-side {
    padding-bottom: 8px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.kba-mic-unit {
    font-size: 10.5px;
    letter-spacing: 2.1px;
    color: var(--eat-text2);
}

.kba-mic-actions {
    margin-top: 13px;
    display: flex;
}

.kba-tap-btn {
    margin-top: 13px;
    width: 100%;
    padding: 22px;
    border: none;
    border-radius: 16px;
    background: var(--kba-rest-grad);
    box-shadow: var(--kba-rest-shadow);
    color: var(--eat-sound-rest-text);
    font-size: 18px;
    letter-spacing: 2.52px;
    cursor: pointer;
}

.kba-tap-btn:active {
    background: linear-gradient(to bottom, var(--eat-acc-lit) 0%, var(--eat-acc) 55%, var(--eat-acc-dim) 100%);
    color: var(--eat-on-acc);
}

/* ============ 解析中 ============ */

.kba-overlay {
    position: fixed;
    inset: 0;
    z-index: 30;
    background: var(--eat-scrim);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.kba-overlay-card {
    box-sizing: border-box;
    width: 100%;
    max-width: 380px;
    margin: 0 !important;
    padding: 20px 22px 22px !important;
    text-align: center;
}

.kba-overlay-head {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 9.5px;
    letter-spacing: 1.9px;
    color: var(--eat-text3);
}

.kba-overlay-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--eat-acc);
}

.kba-overlay-title {
    margin-top: 10px;
    font-size: 15px;
    color: var(--eat-text);
    word-break: break-all;
}

.kba-overlay-card .kba-prog {
    margin-top: 14px;
}

.kba-overlay-msg {
    margin-top: 10px;
    font-size: 11.5px;
    color: var(--eat-text2);
}

.kba-overlay-card .kba-smallbtn {
    margin-top: 16px;
}