/* نبرات — هيئة الواجهة.
   لوحة ليلية هادئة: الصوت يُسمع في الغالب مساءً وبسماعات، والشاشة الصارخة تُتعب.
   والتباين محجوز للمقابض وما تتفاعل معه، لا للخلفيات. */

:root{
 --bg:#0b0f14;
 --panel:#131a23;
 --panel-2:#192330;
 --line:#243243;
 --ink:#e8eef6;
 --ink-dim:#93a4b8;
 --accent:#64d2ff;
 --accent-ink:#06222e;
 --warm:#ffd479;
 --radius:14px;
 --gap:14px;
 color-scheme:dark;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
 background:var(--bg);
 color:var(--ink);
 font:16px/1.65 system-ui,'Segoe UI',Tahoma,sans-serif;
 -webkit-text-size-adjust:100%;
}

h1,h2,h3{margin:0;font-weight:650;line-height:1.3}
h1{font-size:1.35rem}
h2{font-size:1.05rem}
h3{font-size:.92rem;color:var(--ink-dim);margin:18px 0 8px;font-weight:600}
p{margin:0}

/* ── الشريط العلوي ── */
.topbar{
 display:flex;align-items:center;gap:var(--gap);
 padding:12px 18px;flex-wrap:wrap;
 background:linear-gradient(180deg,#121a24,#0d131b);
 border-bottom:1px solid var(--line);
 position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:center;gap:9px}
.brand-mark{
 display:grid;place-items:center;width:32px;height:32px;border-radius:10px;
 background:var(--accent);color:var(--accent-ink);font-size:17px;
}
.brand strong{font-size:1.1rem}
.brand-sub{color:var(--ink-dim);font-size:.82rem}
.jump{display:flex;gap:6px;flex-wrap:wrap;flex:1;min-width:0}
.jump button{font-size:.8rem;padding:5px 11px}

/* ── التخطيط ── */
main{
 display:grid;
 grid-template-columns:minmax(280px,340px) 1fr;
 gap:var(--gap);
 padding:var(--gap);
 align-items:start;
 max-width:1500px;margin:0 auto;
}
.workspace{display:grid;gap:var(--gap);min-width:0}
@media(max-width:900px){
 main{grid-template-columns:1fr}
 .library{order:2}
}

.panel{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:16px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}

details>summary{
 display:flex;align-items:center;gap:10px;cursor:pointer;list-style:none;
 padding:2px 0;
}
details>summary::-webkit-details-marker{display:none}
details>summary::after{
 content:'▾';margin-inline-start:auto;color:var(--ink-dim);
 transition:transform .18s;font-size:.9rem;
}
details[open]>summary::after{transform:rotate(180deg)}
details .body{padding-top:14px}

/* ── الأزرار ── */
button,.primary{
 font:inherit;font-size:.88rem;
 background:var(--panel-2);color:var(--ink);
 border:1px solid var(--line);border-radius:10px;
 padding:8px 14px;cursor:pointer;
 transition:border-color .15s,background .15s;
 text-decoration:none;display:inline-block;text-align:center;
}
button:hover,.primary:hover{border-color:var(--accent)}
button:disabled{opacity:.42;cursor:not-allowed}
.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:620}
.primary:hover{filter:brightness(1.08)}
.block{display:block;width:100%}
.ghost{background:transparent}
button.selected{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.row{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.row>*{flex:1 1 auto}

.chip{
 background:var(--panel-2);border:1px solid var(--line);
 border-radius:999px;padding:3px 11px;font-size:.78rem;color:var(--ink-dim);
}
.eyebrow{color:var(--accent);font-size:.75rem;letter-spacing:.06em;margin-bottom:6px}
.hint{color:var(--ink-dim);font-size:.84rem;margin:6px 0 12px}
.note{color:var(--ink-dim);font-size:.84rem;margin-top:8px;min-height:1.2em}
.fineprint{color:var(--ink-dim);font-size:.76rem;margin-top:14px;line-height:1.55}

/* ── المشغّل ── */
.now{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:12px}
.now p{color:var(--ink-dim);font-size:.86rem;margin-top:4px}
.now-icon{
 width:46px;height:46px;flex:0 0 auto;display:grid;place-items:center;
 background:var(--panel-2);border-radius:12px;font-size:20px;color:var(--accent);
}
#wave{width:100%;height:84px;display:block;border-radius:10px;background:var(--panel-2)}
.times{display:flex;justify-content:space-between;color:var(--ink-dim);font-size:.8rem;margin-top:4px}
.transport{display:flex;align-items:center;justify-content:center;gap:18px;margin:14px 0}
.transport button{min-width:54px}
.transport small{font-size:.68rem;opacity:.75}
.play{
 width:62px;height:62px;border-radius:50%;font-size:22px;
 background:var(--accent);color:var(--accent-ink);border-color:var(--accent);
}
.player-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.loop{display:flex;gap:7px;flex-wrap:wrap}
.volume{display:flex;align-items:center;gap:9px;font-size:.84rem;color:var(--ink-dim)}
.volume input{width:120px}

/* ── المقابض ── */
input[type=range]{
 -webkit-appearance:none;appearance:none;width:100%;
 height:5px;border-radius:3px;background:var(--line);outline:none;
}
input[type=range]::-webkit-slider-thumb{
 -webkit-appearance:none;width:19px;height:19px;border-radius:50%;
 background:var(--accent);cursor:pointer;border:3px solid var(--panel);
}
input[type=range]::-moz-range-thumb{
 width:19px;height:19px;border-radius:50%;background:var(--accent);
 cursor:pointer;border:3px solid var(--panel);
}
input[type=range]:disabled::-webkit-slider-thumb{background:var(--ink-dim)}

input[type=text],select{
 font:inherit;font-size:.88rem;width:100%;
 background:var(--panel-2);color:var(--ink);
 border:1px solid var(--line);border-radius:10px;padding:8px 11px;
}

.control{margin:16px 0}
.control>label{display:flex;justify-content:space-between;gap:10px;font-size:.88rem;margin-bottom:7px}
.control output{color:var(--accent);font-variant-numeric:tabular-nums}
.control .sub{font-size:.82rem;color:var(--ink-dim);margin-top:12px}
.stepper{display:flex;align-items:center;gap:10px}
.stepper button{min-width:42px;padding:6px 10px}
.stepper input{flex:1}
.quick{display:flex;gap:6px;flex-wrap:wrap;margin-top:9px}
.quick button{font-size:.8rem;padding:5px 11px}

.tabs{display:flex;gap:6px;flex-wrap:wrap}
.tabs button{flex:1 1 auto}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(205px,1fr));gap:13px}
.grid label{display:block;font-size:.84rem}
.grid label output{float:inline-end;color:var(--accent);font-variant-numeric:tabular-nums}
.grid label input[type=range]{margin-top:7px}
.grid .band-hz{display:block;color:var(--ink-dim);font-size:.72rem;margin-top:2px}

.strip{
 display:flex;align-items:center;gap:10px;flex-wrap:wrap;
 margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
 font-size:.86rem;
}
.strip span{flex:1;min-width:150px;color:var(--ink-dim)}

.switch{display:flex;align-items:center;gap:6px;font-size:.8rem;color:var(--ink-dim)}
.switch input{width:16px;height:16px;accent-color:var(--accent)}
.check{display:flex;align-items:center;gap:8px;font-size:.86rem;margin:9px 0}
.check input{width:16px;height:16px;accent-color:var(--accent)}
.toggles{display:flex;gap:16px;flex-wrap:wrap;margin-top:14px;align-items:center}
.select{display:block;font-size:.86rem;margin-bottom:14px}
.select select{margin-top:7px}
.file{font-size:.84rem;color:var(--ink-dim)}
.file input{display:block;margin-top:6px;font-size:.8rem;max-width:100%}

/* ── المكتبة ── */
.track-list{display:grid;gap:7px;margin-top:12px}
.track{
 display:flex;align-items:center;gap:10px;
 background:var(--panel-2);border:1px solid var(--line);
 border-radius:11px;padding:9px 11px;
}
.track.active{border-color:var(--accent)}
.track-name{
 flex:1;min-width:0;font-size:.86rem;text-align:start;
 background:none;border:none;padding:0;color:inherit;cursor:pointer;
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.track-size{font-size:.72rem;color:var(--ink-dim);flex:0 0 auto}
.track-remove{padding:3px 9px;font-size:.9rem;flex:0 0 auto}
.empty{text-align:center;padding:26px 14px;color:var(--ink-dim)}
.empty span{font-size:30px;display:block;margin-bottom:8px;color:var(--accent)}
.empty h3{color:var(--ink);margin-bottom:6px}
.empty p{font-size:.86rem;margin-bottom:14px}

.preset-list{display:grid;gap:7px;margin-top:12px}
.preset{
 display:flex;align-items:center;gap:7px;flex-wrap:wrap;
 background:var(--panel-2);border:1px solid var(--line);
 border-radius:11px;padding:8px 11px;
}
.preset-name{flex:1;min-width:110px;text-align:start;background:none;border:none;color:inherit;font-size:.86rem;cursor:pointer;padding:0}
.preset button{font-size:.76rem;padding:4px 9px}

/* ── الإشعار والنوافذ ── */
#notice{
 position:fixed;inset-inline:0;bottom:18px;margin:auto;width:max-content;max-width:88vw;
 background:var(--accent);color:var(--accent-ink);
 border-radius:11px;padding:10px 18px;font-size:.88rem;font-weight:560;
 z-index:40;box-shadow:0 8px 28px rgba(0,0,0,.45);
}
dialog{
 background:var(--panel);color:var(--ink);
 border:1px solid var(--line);border-radius:var(--radius);
 padding:20px;max-width:min(560px,92vw);width:100%;
}
dialog::backdrop{background:rgba(4,8,12,.72)}
dialog label{display:block;font-size:.86rem;margin:12px 0 6px}

.release{border-bottom:1px solid var(--line);padding:12px 0}
.release:last-child{border-bottom:none}
.release h3{color:var(--accent);margin:0 0 4px}
.release time{color:var(--ink-dim);font-size:.78rem}
.release ul{margin:8px 0 0;padding-inline-start:20px;font-size:.86rem;line-height:1.7}

progress{width:100%;height:7px;margin-top:10px;accent-color:var(--accent)}
audio{width:100%;margin-top:12px}

@media(prefers-reduced-motion:reduce){*{transition:none!important}}


/* ── مجموعات الفلاتر: كل مجموعة بطاقة مميّزة بلونها ── */
.group{
 border:1px solid var(--line);
 border-radius:12px;
 padding:13px 14px 6px;
 margin:14px 0;
 background:color-mix(in srgb,var(--panel-2) 45%,transparent);
 border-inline-start:3px solid var(--group,var(--accent));
}
.group>h3{
 margin:0 0 10px;
 color:var(--group,var(--accent));
 font-size:.88rem;
 display:flex;align-items:center;gap:8px;
}
.group>h3::after{content:'';flex:1;height:1px;background:var(--line)}

/* ثلاث خانات متجاورة على الحاسوب، واحدة على الهاتف.
   المقبض الممتدّ عرض الشاشة يُهدر المساحة ولا يزيد دقّة الضبط. */
.group-body{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px 16px}
.group-body .wide{grid-column:1/-1}

/* ── صفّ المتحكّم: مضغوط، بناقص وزائد وافتراضي ── */
.ctl{margin:0 0 10px}
.ctl>label{display:flex;justify-content:space-between;gap:8px;font-size:.8rem;margin-bottom:5px;line-height:1.35}
.ctl>label output{color:var(--accent);font-variant-numeric:tabular-nums;white-space:nowrap;font-weight:600}
.ctl .stepper{display:flex;align-items:center;gap:5px}
.ctl .stepper button{min-width:30px;padding:3px 6px;font-size:.88rem;flex:0 0 auto;line-height:1.2}
.ctl .stepper input[type=range]{flex:1;min-width:48px}
.ctl .reset-one{font-size:.68rem;padding:3px 7px;color:var(--ink-dim)}
.ctl .reset-one:hover{color:var(--ink)}
.ctl .check{margin:0;font-size:.82rem;line-height:1.35;align-items:flex-start}
.ctl .check input{margin-top:3px;flex:0 0 auto}
.ctl .select{margin-bottom:0;font-size:.82rem}
.ctl .hint{font-size:.76rem;margin:5px 0 0}

/* ── السرعة والنبرة: صندوقان متجاوران ── */
.motion-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.motion-box{
 border:1px solid var(--line);border-radius:12px;padding:14px;
 background:color-mix(in srgb,var(--panel-2) 45%,transparent);
}
.motion-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:12px}
.motion-head h3{margin:0;color:var(--ink);font-size:.95rem}
.motion-head output{
 color:var(--accent);font-size:1.3rem;font-weight:680;
 font-variant-numeric:tabular-nums;white-space:nowrap;
}
.stepper.big button{min-width:44px;padding:8px 12px;font-size:1.05rem}
.stepper.big .reset-one{min-width:auto;padding:5px 9px;font-size:.72rem}
.motion-box .sub{display:flex;justify-content:space-between;font-size:.8rem;color:var(--ink-dim);margin:14px 0 6px}
.motion-box .sub output{color:var(--accent);font-variant-numeric:tabular-nums}

/* ── تبديل المظهر ── */
.topbar-end{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.theme-pick{display:flex;align-items:center;gap:7px;font-size:.78rem;color:var(--ink-dim)}
.theme-pick select{width:auto;min-width:92px;padding:5px 9px;font-size:.8rem}

@media(max-width:560px){
 .topbar-end{width:100%;justify-content:space-between}
 .group{padding:11px 11px 4px}
}

/* ── التحديدات المحفوظة داخل المقطع ── */
.marks{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.marks h3{margin:0 0 9px;font-size:.8rem}
.mark{
 display:flex;align-items:center;gap:7px;flex-wrap:wrap;
 background:var(--panel-2);border:1px solid var(--line);
 border-radius:10px;padding:7px 10px;margin-bottom:6px;
}
.mark-name{
 flex:1;min-width:110px;text-align:start;background:none;border:none;
 color:inherit;font-size:.84rem;cursor:pointer;padding:0;
}
.mark-span{font-size:.74rem;color:var(--ink-dim);font-variant-numeric:tabular-nums}
.mark button:not(.mark-name){font-size:.74rem;padding:3px 8px}

/* ── المفضّلة: تحديدات المكتبة كلها ── */
.fav-list{display:grid;gap:7px;margin-top:12px}
.fav{
 display:flex;align-items:center;gap:9px;flex-wrap:wrap;
 background:var(--panel-2);border:1px solid var(--line);
 border-radius:11px;padding:9px 11px;
}
.fav-main{
 flex:1;min-width:150px;text-align:start;background:none;border:none;
 color:inherit;cursor:pointer;padding:0;
}
.fav-main strong{display:block;font-size:.88rem;font-weight:600}
.fav-main small{
 display:block;color:var(--ink-dim);font-size:.74rem;margin-top:2px;
 overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.fav-span{font-size:.74rem;color:var(--accent);font-variant-numeric:tabular-nums;flex:0 0 auto}
.fav button:not(.fav-main){font-size:.74rem;padding:4px 9px;flex:0 0 auto}

/* عنوان المقطع فوق تحديداته: يظهر مرّة لا في كل سطر */
.fav-group{
 margin:14px 0 7px;font-size:.8rem;color:var(--accent);
 display:flex;align-items:center;gap:8px;
}
.fav-group:first-child{margin-top:4px}
.fav-group::after{content:'';flex:1;height:1px;background:var(--line)}

/* ── قائمة الدمج ── */
.merge-list{display:grid;gap:7px;margin:12px 0}
.merge-item{
 display:flex;align-items:center;gap:8px;
 background:var(--panel-2);border:1px solid var(--line);
 border-radius:10px;padding:8px 11px;
}
.merge-order{color:var(--ink-dim);font-size:.74rem;min-width:18px;font-variant-numeric:tabular-nums}
.merge-name{flex:1;min-width:0;font-size:.84rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.merge-item button{font-size:.76rem;padding:3px 8px;flex:0 0 auto}

/* نافذة اختيار ملفات الدمج */
.pick-list{max-height:48vh;overflow:auto;margin:12px 0;display:grid;gap:4px}
.pick-list .check{margin:0;padding:6px 8px;border-radius:8px}
.pick-list .check:hover{background:var(--panel-2)}

/* ── المسجّل: مراقبة المستوى ── */
.rec{margin-top:10px}
.rec-meter{display:flex;align-items:center;gap:9px;margin-bottom:8px}
.meter{
 flex:1;height:8px;border-radius:4px;background:var(--panel-2);
 position:relative;overflow:hidden;border:1px solid var(--line);
}
.meter span{
 position:absolute;inset-inline-start:0;top:0;bottom:0;width:0;
 background:linear-gradient(90deg,#5ec8a8,#e0a95c 78%,#e0657a 92%);
 transition:width .06s linear;
}
.meter i{
 position:absolute;top:0;bottom:0;width:2px;background:var(--ink);
 inset-inline-start:0;transition:inset-inline-start .12s linear;
}
.meter-label{font-size:.72rem;color:var(--ink-dim);min-width:78px;text-align:start}
.meter-label.loud{color:#e38aa0}
.rec-opts{margin-top:8px}
.rec-opts summary{cursor:pointer;font-size:.78rem;color:var(--ink-dim);list-style:none}
.rec-opts summary::after{content:" ▾"}
.rec-opts[open] summary::after{content:" ▴"}
.ctl-row{display:flex;flex-direction:column;gap:5px;font-size:.82rem;margin:10px 0}
.ctl-row output{color:var(--accent)}
.counting{
 display:grid;place-items:center;font-size:2.4rem;font-weight:700;
 color:var(--accent);padding:14px 0;
}

/* ── المقطع العشوائي ── */
#shReport{color:var(--accent);font-size:.8rem;margin-bottom:8px}

/* ── قوائم التشغيل ── */
.select.inline{display:flex;align-items:center;gap:8px;margin:0;flex:1 1 220px}
.select.inline select{margin-top:0;flex:1}
.row.tight{gap:6px;margin:0}
.row.tight>*{flex:0 0 auto}
.pl-list{display:grid;gap:6px;margin-top:12px}
.pl-item{
 display:flex;align-items:center;gap:8px;
 background:var(--panel-2);border:1px solid var(--line);
 border-radius:10px;padding:8px 11px;
}
.pl-item.playing{border-color:var(--accent)}
.pl-order{color:var(--ink-dim);font-size:.72rem;min-width:20px;font-variant-numeric:tabular-nums}
.pl-name{
 flex:1;min-width:0;font-size:.84rem;text-align:start;background:none;
 border:none;color:inherit;cursor:pointer;padding:0;
 overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.pl-item.playing .pl-name{color:var(--accent);font-weight:600}
.pl-item button:not(.pl-name){font-size:.74rem;padding:3px 8px;flex:0 0 auto}
#plNow{color:var(--accent);font-size:.82rem;margin-top:12px}

/* ══ شرح المتحكّمات: علامة وفقاعة ══ */
.about-mark{
 display:inline-flex;align-items:center;justify-content:center;
 width:17px;height:17px;padding:0;flex:0 0 auto;
 border-radius:50%;border:1px solid var(--line);
 background:transparent;color:var(--muted);
 font-size:.66rem;line-height:1;cursor:help;position:relative;
}
.about-mark:hover,.about-mark:focus-visible{
 border-color:var(--accent);color:var(--accent);background:transparent;
}
.about-bubble{
 position:absolute;z-index:40;
 top:calc(100% + 7px);right:0;
 width:min(290px,76vw);padding:9px 11px;
 border-radius:10px;border:1px solid var(--line);
 background:var(--panel);color:var(--text);
 box-shadow:0 10px 26px rgba(0,0,0,.34);
 font-size:.76rem;line-height:1.65;font-weight:400;
 text-align:right;white-space:normal;
 display:none;pointer-events:none;
 animation:bubble-in .13s ease-out;
}
.about-mark:hover .about-bubble,
.about-mark:focus-visible .about-bubble{display:block}
@keyframes bubble-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.about-text{font-size:.9rem;line-height:1.85;margin:0;max-width:46ch}

/* ══ شبكة الفلاتر الجاهزة ══ */
.wide-dialog{max-width:min(760px,94vw)}
.ready-grid{
 display:grid;gap:7px;margin:12px 0;
 grid-template-columns:repeat(auto-fill,minmax(98px,1fr));
}
.ready-card{
 position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;
 padding:9px 6px;border-radius:10px;
 border:1px solid var(--line);background:var(--panel-2,var(--panel));
 cursor:pointer;text-align:center;
}
.ready-card:hover{border-color:var(--accent)}
.ready-card.selected{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 16%,transparent)}
.ready-icon{font-size:1.15rem;line-height:1}
.ready-name{font-size:.71rem;line-height:1.35;color:var(--text)}
.ready-card .about-bubble{top:calc(100% + 5px);right:50%;margin-right:145px}
.ready-card:hover .about-bubble{display:block}
@media (max-width:520px){
 .ready-grid{grid-template-columns:repeat(auto-fill,minmax(84px,1fr))}
}
.group-head{display:flex;align-items:center;gap:7px}
.group-head h3{margin:0}

@media (max-width:620px){
 .about-bubble,.ready-card .about-bubble{
  position:fixed;inset-inline:12px;top:auto;bottom:14px;
  width:auto;max-width:none;margin:0;
 }
}