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@media(max-width:700px){.x2o2-ac-hero,.x2o2-ac-strength,.x2o2-ac-output{align-items:flex-start;flex-direction:column}.format-toggle{width:100%}.format-toggle button{flex:1}.x2o2-ac-mode,.x2o2-ac-result-grid{grid-template-columns:1fr}.x2o2-ac-hero h1{font-size:28px}.x2o2-ac-card{padding:18px}.x2o2-ac-modal-card{padding:18px}.modal-top>strong{font-size:22px}}

.x2o2-ac-nav-icon{display:inline-block;width:18px;margin-right:9px;text-align:center;vertical-align:middle}

/* v2.8 theme refinements */
.x2o2-ac-page{min-height:calc(100vh - 210px);box-sizing:border-box}
.x2o2-ac-hero h1{color:#ff8a1f}
.x2o2-ac-nav-item .x2o2-ac-nav-link{display:flex;align-items:center;line-height:1.2}
.x2o2-ac-nav-icon{flex:0 0 20px;width:20px!important;margin:0 10px 0 0!important;text-align:center;vertical-align:middle}
.x2o2-ac-nav-item .x2o2-ac-nav-link span{display:block;white-space:nowrap}
.format-toggle{border-radius:10px;padding:3px;background:rgba(255,255,255,.035)}
.format-toggle button{min-width:66px;padding:9px 14px;border-radius:7px}
.format-toggle button.is-selected{background:rgba(255,138,31,.16);color:#ffad5b;box-shadow:inset 0 0 0 1px rgba(255,138,31,.34),0 0 16px rgba(255,138,31,.08)}
.x2o2-ac-analysis-bar span,.x2o2-ac-progress span{background:linear-gradient(90deg,#7de7ff 0%,#5c8dff 22%,#9b7cff 42%,#e77ac7 61%,#ffae4f 80%,#72e7a0 100%);background-size:200% 100%;animation:acbarflow 2.8s linear infinite;box-shadow:0 0 14px rgba(125,231,255,.22),0 0 18px rgba(255,174,79,.12)}
@keyframes acbarflow{0%{background-position:0 0}100%{background-position:200% 0}}
.ac-analysis-step,.ac-signal-step{position:relative}
.ac-analysis-step i,.ac-signal-step i{transition:background .22s,border-color .22s,box-shadow .22s,transform .22s}
.ac-analysis-step.tone-0.done i,.ac-signal-step.tone-0.done i{background:#7de7ff;border-color:#7de7ff;box-shadow:0 0 10px rgba(125,231,255,.30)}
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.ac-analysis-step.tone-6.done i,.ac-signal-step.tone-6.done i{background:#ff9c60;border-color:#ff9c60;box-shadow:0 0 10px rgba(255,156,96,.30)}
.ac-analysis-step.tone-7.done i,.ac-signal-step.tone-7.done i{background:#72e7a0;border-color:#72e7a0;box-shadow:0 0 10px rgba(114,231,160,.30)}
.ac-analysis-step.active i,.ac-signal-step.active i{transform:scale(1.08);animation:acpulse 1.2s ease-in-out infinite}
@keyframes acpulse{0%,100%{box-shadow:0 0 0 4px rgba(255,255,255,.05),0 0 8px rgba(255,255,255,.12)}50%{box-shadow:0 0 0 6px rgba(255,255,255,.08),0 0 18px rgba(255,255,255,.26)}}
.ac-analysis-line,.ac-signal-line{background:linear-gradient(90deg,rgba(125,231,255,.35),rgba(92,141,255,.32),rgba(167,123,255,.30),rgba(239,122,199,.27),rgba(255,156,96,.28),rgba(114,231,160,.30));box-shadow:0 0 7px rgba(150,160,190,.08)}
.x2o2-ac-analysis-stages{gap:5px}
.x2o2-ac-analysis-loading{box-shadow:inset 0 0 0 1px rgba(255,255,255,.015)}
.x2o2-ac-output{align-items:center}
@media(max-width:700px){.x2o2-ac-page{min-height:calc(100vh - 170px)}}
/* v2.9 final visual refinements */
.x2o2-ac-modal-card{background:#0b0b0b}
.x2o2-ac-modal .x2o2-ac-kicker{color:#ff8a1f;opacity:1}
.x2o2-ac-modal .modal-top>strong{color:#ff8a1f}
.mode-card.is-selected{border-color:rgba(255,138,31,.48);background:rgba(255,138,31,.12);box-shadow:inset 0 0 0 1px rgba(255,138,31,.08),0 0 18px rgba(255,138,31,.08)}
.mode-card.is-selected .check{color:#ff9f3f}
.mode-card.is-selected .mode-icon{color:#ff9f3f}


/* v3.0 information and processing guidance */
.x2o2-ac-info-card{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.018));border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:24px;margin:8px 0 18px;box-shadow:0 14px 40px rgba(0,0,0,.14)}
.x2o2-ac-info-head{display:flex;gap:14px;align-items:flex-start;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.07)}
.x2o2-ac-info-icon{width:32px;height:32px;flex:0 0 32px;border-radius:50%;display:grid;place-items:center;border:1px solid rgba(255,138,31,.36);color:#ff9a32;background:rgba(255,138,31,.09);font-weight:800}
.x2o2-ac-info-head h2{margin:4px 0 5px;font-size:21px}
.x2o2-ac-info-head p{margin:0;color:#9da3b1;line-height:1.5}
.x2o2-ac-info-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:18px 0}
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.x2o2-ac-info-step>span{display:grid;place-items:center;width:31px;height:31px;flex:0 0 31px;border-radius:9px;background:rgba(255,138,31,.11);color:#ff9f3f;font-size:11px;font-weight:800}
.x2o2-ac-info-step div{display:flex;flex-direction:column;gap:4px}
.x2o2-ac-info-step strong{font-size:14px}
.x2o2-ac-info-step small{font-size:12px;color:#8f96a5;line-height:1.5}
.x2o2-ac-info-checks{padding-top:2px}
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.x2o2-ac-info-checks span{padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.07);color:#aeb5c0;font-size:11px}
.x2o2-ac-info-time{display:flex;gap:12px;align-items:flex-start;margin-top:18px;padding:13px 14px;border-radius:13px;background:rgba(255,138,31,.07);border:1px solid rgba(255,138,31,.18)}
.x2o2-ac-info-time-icon{color:#ff9f3f;font-size:20px;line-height:1.1}
.x2o2-ac-info-time div{display:flex;flex-direction:column;gap:4px}
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.x2o2-ac-info-time small{font-size:11px;color:#aeb5c0;line-height:1.5}
.x2o2-ac-modal-foot{line-height:1.45}
@media(max-width:700px){.x2o2-ac-info-card{padding:18px}.x2o2-ac-info-grid{grid-template-columns:1fr}.x2o2-ac-info-checks>div{gap:6px}.x2o2-ac-info-checks span{font-size:10px;padding:6px 8px}}

/* X2O2 Studio handoff */
.x2o2-ac-import-note{display:flex;align-items:center;gap:10px;margin:0 0 14px;padding:11px 13px;border:1px solid rgba(249,143,29,.25);border-radius:7px;background:rgba(249,143,29,.06);color:#cfcfcf}.x2o2-ac-import-note strong{color:#f7a34a;font-size:12px}.x2o2-ac-import-note span{font-size:11px;color:#8d8d8d}
/* X2O2 final result controls: keep Process Another Track readable on dark themes. */
.x2o2-ac-result-actions [data-ac-another]{color:#e8eaf0!important;background:rgba(255,255,255,.055)!important;border:1px solid rgba(255,255,255,.14)!important;box-shadow:none!important;text-shadow:none!important}
.x2o2-ac-result-actions [data-ac-another]:hover{color:#fff!important;background:rgba(255,138,31,.12)!important;border-color:rgba(255,138,31,.38)!important}

/* X2O2 theme refresh */
.x2o2-ac-page{position:relative;isolation:isolate;box-sizing:border-box;width:calc(100% - 32px);max-width:1440px;margin:clamp(24px,5vh,64px) auto 64px;padding:clamp(22px,4vw,42px);border:1px solid rgba(255,138,31,.16);border-radius:18px;background:linear-gradient(145deg,rgba(26,25,25,.98),rgba(14,15,17,.99) 56%,rgba(19,17,16,.98));box-shadow:0 24px 70px rgba(0,0,0,.28),inset 0 1px rgba(255,255,255,.035);color:#f1f1f2}
.x2o2-ac-page:before{position:absolute;inset:0;z-index:-1;border-radius:inherit;background:radial-gradient(ellipse at 82% 4%,rgba(255,111,24,.095),transparent 38%),linear-gradient(rgba(255,255,255,.012) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.012) 1px,transparent 1px);background-size:auto,32px 32px,32px 32px;content:"";pointer-events:none}
.x2o2-ac-hero{justify-content:center;text-align:center;margin:0 auto 30px;position:relative;padding:0 120px}
.x2o2-ac-hero>div:first-child{max-width:620px}
.x2o2-ac-hero .x2o2-ac-kicker,.x2o2-ac-info-head .x2o2-ac-kicker{color:#ff9a3d;opacity:1}
.x2o2-ac-hero h1{font-size:clamp(28px,4vw,38px);font-weight:750;letter-spacing:-.035em;margin:9px 0 8px}
.x2o2-ac-hero p{font-size:14px;line-height:1.6}
.x2o2-ac-health{position:absolute;right:0;top:0;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.035);color:#c4c5c8}
.x2o2-ac-health.ok{border-color:rgba(255,138,31,.2);color:#f3c49b}
.x2o2-ac-health.ok .dot{background:#ff8a1f;box-shadow:0 0 10px rgba(255,138,31,.55)}
.x2o2-ac-card,.x2o2-ac-info-card{max-width:780px;margin:0 auto 18px;border:1px solid rgba(255,138,31,.16);border-radius:14px;background:linear-gradient(155deg,rgba(30,30,31,.96),rgba(20,21,23,.96));box-shadow:0 12px 34px rgba(0,0,0,.2)}
.x2o2-ac-card{padding:clamp(18px,3vw,28px)}
.x2o2-ac-info-card{padding:clamp(18px,3vw,26px)}
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.x2o2-ac-drop{min-height:228px;gap:10px;border:1px dashed rgba(255,138,31,.34);background:rgba(5,6,7,.34);color:#f2f2f2}
.x2o2-ac-drop.drag,.x2o2-ac-drop:hover{border-color:#ff8a1f;background:rgba(255,138,31,.055);box-shadow:inset 0 0 32px rgba(255,138,31,.035)}
.x2o2-ac-drop:focus-within{outline:2px solid rgba(255,138,31,.7);outline-offset:3px}
.x2o2-ac-drop .icon{color:#ff8a1f;background:rgba(255,138,31,.11);border:1px solid rgba(255,138,31,.19);font-size:25px}
.x2o2-ac-drop strong{font-size:18px}
.x2o2-ac-drop span{font-size:12px;color:#a5a5a8}
.x2o2-ac-drop button,.x2o2-ac-page .x2o2-ac-primary{border-radius:8px;font-weight:700;transition:background-color .18s,border-color .18s,transform .18s,box-shadow .18s}
.x2o2-ac-drop button{color:#f0f0f0!important;background:rgba(255,255,255,.055)!important;border:1px solid rgba(255,255,255,.13)!important;box-shadow:none!important}
.x2o2-ac-drop button:hover{background:rgba(255,138,31,.12)!important;border-color:rgba(255,138,31,.38)!important}
.x2o2-ac-page .x2o2-ac-primary{min-height:42px;padding:0 22px;color:#fff!important;background:#ff791f!important;border:1px solid #ff791f!important;box-shadow:0 5px 15px rgba(255,104,15,.18)!important}
.x2o2-ac-page .x2o2-ac-primary:hover:not(:disabled){background:#ff8a32!important;border-color:#ff8a32!important;box-shadow:0 7px 20px rgba(255,104,15,.28)!important;transform:translateY(-1px)}
.x2o2-ac-page .x2o2-ac-primary:disabled{opacity:.46;box-shadow:none!important}
.x2o2-ac-page button:focus-visible,.x2o2-ac-page a:focus-visible,.x2o2-ac-page input:focus-visible{outline:2px solid #ff9a3d;outline-offset:3px}
.x2o2-ac-actions{justify-content:center;margin-top:20px}
.x2o2-ac-primary{min-width:190px}
.x2o2-ac-file{border:1px solid rgba(255,255,255,.075);background:rgba(255,255,255,.035)}
.x2o2-ac-file .file-icon{color:#ff9a3d;background:rgba(255,138,31,.1)}
.x2o2-ac-icon-btn:hover{color:#ff9a3d}
.x2o2-ac-info-head{display:flex;align-items:flex-start;gap:13px}
.x2o2-ac-info-icon{margin-top:2px}
.x2o2-ac-info-grid{gap:10px}
.x2o2-ac-info-step{background:rgba(255,255,255,.025);border-color:rgba(255,255,255,.07);transition:border-color .18s,background .18s}
.x2o2-ac-info-step:hover{border-color:rgba(255,138,31,.22);background:rgba(255,138,31,.035)}
.x2o2-ac-info-checks span{background:rgba(255,255,255,.025);border-color:rgba(255,255,255,.07)}
.x2o2-ac-analysis-loading{border-color:rgba(255,138,31,.17);background:rgba(0,0,0,.19)}
.x2o2-ac-analysis-loading .spinner{border-top-color:#ff8a1f}
.x2o2-ac-analysis-bar span,.x2o2-ac-progress span{background:#ff791f}
.ac-analysis-step.done i,.ac-analysis-step.active i{background:#ff8a1f;border-color:#ff8a1f}
.ac-analysis-step.active i{box-shadow:0 0 0 4px rgba(255,138,31,.11)}
.ac-analysis-step.done b,.ac-analysis-step.active b{color:#f0c39e}
.x2o2-ac-recommend{border-color:rgba(255,138,31,.2);background:rgba(255,138,31,.045)}
.recommend-badge{color:#ff9a3d;opacity:1}
.x2o2-ac-recommend-grid strong,.strength-line output{color:#ffb16c}
.mode-card.is-selected{border-color:rgba(255,138,31,.52);background:rgba(255,138,31,.085);box-shadow:inset 0 0 0 1px rgba(255,138,31,.08)}
.mode-card.is-selected .mode-icon,.mode-card.is-selected .check{color:#ff9a3d}
.format-toggle button.is-selected{color:#fff;background:rgba(255,138,31,.18);box-shadow:inset 0 0 0 1px rgba(255,138,31,.28)}
.success-mark{background:rgba(255,138,31,.13);color:#ff9a3d}
.result-ready{border:1px solid rgba(255,138,31,.16);border-radius:12px;background:rgba(255,255,255,.025)}
.result-ready-icon{color:#ff9a3d}
.x2o2-ac-modal-card{border-color:rgba(255,138,31,.2);background:linear-gradient(145deg,#1c1b1b,#111214)}
.modal-top>strong,.x2o2-ac-modal .x2o2-ac-kicker{color:#ff9a3d}
.x2o2-ac-progress{background:rgba(255,255,255,.09)}
.x2o2-ac-result-actions [data-ac-another]{border-radius:8px!important}
@media(min-width:1100px){.x2o2-ac-page{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:start;column-gap:24px;row-gap:0}.x2o2-ac-hero,.x2o2-ac-import-note,.x2o2-ac-step[data-step="analysis"],.x2o2-ac-result,.x2o2-ac-error{grid-column:1/-1}.x2o2-ac-card,.x2o2-ac-info-card{width:100%;max-width:none;margin:0 0 18px}.x2o2-ac-info-grid{grid-template-columns:1fr 1fr}.x2o2-ac-drop{min-height:270px}}
@media(max-width:700px){.x2o2-ac-page{width:calc(100% - 20px);margin:12px auto 36px;padding:20px 14px;border-radius:13px}.x2o2-ac-hero{padding:0 0 48px;margin-bottom:20px}.x2o2-ac-health{top:auto;right:50%;bottom:0;transform:translateX(50%)}.x2o2-ac-drop{min-height:205px}.x2o2-ac-actions{flex-wrap:wrap}.x2o2-ac-page .x2o2-ac-primary{width:100%}.x2o2-ac-mode{grid-template-columns:1fr}.x2o2-ac-result-grid{grid-template-columns:1fr}.x2o2-ac-output{align-items:flex-start;flex-direction:column}.x2o2-ac-info-head{gap:10px}}
@media(prefers-reduced-motion:reduce){.x2o2-ac-page *, .x2o2-ac-page *:before, .x2o2-ac-page *:after{scroll-behavior:auto!important;transition:none!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}