/* «Последний звонок» — визуальная новелла. Движок без зависимостей. */
:root{
  --bg:#0f1117;
  --panel:rgba(16,19,27,.94);
  --box:rgba(12,15,22,.82);
  --line:rgba(255,255,255,.12);
  --text:#eef1f6;
  --dim:#a8b0c0;
  --gold:#e8b64c;
  --gold-2:#f7d68a;
  --accent:#7fb8e8;
  --danger:#e06b6b;
  --shadow:0 18px 50px rgba(0,0,0,.55);
  --radius:16px;
  --ui:clamp(13px,1.45vw,17px);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue","PT Sans",Arial,sans-serif;
  font-size:var(--ui);line-height:1.5;
  overflow:hidden;-webkit-tap-highlight-color:transparent;
  -webkit-font-smoothing:antialiased;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{display:block;max-width:100%}

.screen{position:fixed;inset:0;opacity:0;pointer-events:none;transition:opacity .45s ease}
.screen.show{opacity:1;pointer-events:auto}

/* ── загрузка ───────────────────────────────────────────────── */
#boot{display:grid;place-items:center;background:radial-gradient(120% 90% at 50% 0%,#1b2130 0%,#0c0e14 70%);z-index:60}
.boot-inner{text-align:center;max-width:420px;padding:24px}
.boot-bell{font-size:44px;animation:sway 2.4s ease-in-out infinite;transform-origin:50% 10%}
@keyframes sway{0%,100%{transform:rotate(-9deg)}50%{transform:rotate(9deg)}}
.boot-title{font-size:clamp(22px,4vw,34px);font-weight:800;letter-spacing:.5px;margin:14px 0 22px;
  background:linear-gradient(180deg,var(--gold-2),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.boot-bar{height:5px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden}
.boot-bar i{display:block;height:100%;width:0%;border-radius:99px;
  background:linear-gradient(90deg,var(--gold),var(--gold-2));transition:width .3s ease}
.boot-hint{margin-top:12px;color:var(--dim);font-size:.92em;min-height:1.4em}

/* ── титульный экран ───────────────────────────────────────── */
#title{z-index:50;overflow:hidden}
.title-bg{position:absolute;inset:-3%;background-image:url(../bg/school_front_last_bell.jpg);
  background-size:cover;background-position:center;animation:drift 32s ease-in-out infinite alternate;filter:saturate(1.05)}
@keyframes drift{from{transform:scale(1.04) translate3d(-1%,0,0)}to{transform:scale(1.12) translate3d(1%,-1%,0)}}
.title-vignette{position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,10,15,.92) 0%,rgba(8,10,15,.72) 38%,rgba(8,10,15,.18) 70%,rgba(8,10,15,.5) 100%),
             radial-gradient(90% 80% at 20% 50%,transparent 40%,rgba(0,0,0,.5) 100%)}
.title-inner{position:relative;height:100%;display:flex;flex-direction:column;justify-content:center;
  gap:6px;padding:clamp(20px,6vw,84px);max-width:min(620px,90vw)}
.title-kicker{text-transform:uppercase;letter-spacing:.34em;font-size:.72em;color:var(--gold);opacity:.9}
.title-main{font-size:clamp(38px,8.4vw,86px);line-height:.94;font-weight:900;letter-spacing:-1px;
  text-shadow:0 8px 34px rgba(0,0,0,.6)}
.title-main span{display:block;background:linear-gradient(180deg,var(--gold-2),#c9922f);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.title-sub{color:var(--dim);margin:10px 0 26px;font-size:1.02em}
.title-menu{display:flex;flex-direction:column;gap:9px;max-width:290px}
.tbtn{position:relative;text-align:left;padding:12px 18px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);backdrop-filter:blur(8px);
  transition:transform .16s ease,background .16s ease,border-color .16s ease;font-weight:600}
.tbtn:hover{background:rgba(255,255,255,.12);transform:translateX(5px);border-color:rgba(232,182,76,.5)}
.tbtn:disabled{opacity:.38;cursor:not-allowed;transform:none}
.tbtn.primary{background:linear-gradient(180deg,rgba(232,182,76,.94),rgba(201,146,47,.94));color:#191204;border-color:transparent}
.tbtn.primary:hover{background:linear-gradient(180deg,#f7d68a,#e8b64c)}
.tbtn.danger{color:#ffb9b9;border-color:rgba(224,107,107,.4)}
.tbtn.small{padding:9px 14px;font-size:.92em;text-align:center}
.title-endings{margin-top:24px;color:var(--dim);font-size:.88em;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.ebadge{padding:4px 10px;border-radius:99px;border:1px solid var(--line);background:rgba(255,255,255,.04)}
.ebadge.on{border-color:rgba(232,182,76,.6);color:var(--gold-2);background:rgba(232,182,76,.12)}
.title-credit{position:absolute;right:14px;bottom:12px;font-size:.74em;color:rgba(255,255,255,.4)}

/* ── игровая сцена ─────────────────────────────────────────── */
#game{z-index:10;background:#000}
.bg-wrap{position:absolute;inset:0;overflow:hidden}
.bg-layer{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;
  transition:opacity .8s ease;will-change:opacity,transform}
.bg-layer.on{opacity:1;animation:kb 42s ease-in-out infinite alternate}
@keyframes kb{from{transform:scale(1.02)}to{transform:scale(1.09)}}
.bg-shade{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(0,0,0,.42) 0%,transparent 22%,transparent 52%,rgba(0,0,0,.72) 100%)}

.sprites{position:absolute;inset:0;pointer-events:none}
.sprite{position:absolute;bottom:0;height:88%;
  transition:opacity .45s ease,transform .45s ease,filter .35s ease;
  opacity:0;transform:translateY(26px) scale(.99);will-change:opacity,transform,filter}
.sprite img{height:100%;width:auto;filter:drop-shadow(0 12px 26px rgba(0,0,0,.5))}
.sprite.in{opacity:1;transform:translateY(0) scale(1)}
.sprite.left{left:2%}
.sprite.center{left:46%;margin-left:-14%}
.sprite.right{right:2%}
.sprite.dimmed{filter:brightness(.62) saturate(.85);transform:translateY(6px) scale(.975)}
.sprite.speaking{filter:brightness(1.04)}

.stage-click{position:absolute;inset:0;cursor:pointer}

/* HUD */
.hud{position:absolute;top:0;right:0;display:flex;gap:6px;padding:10px 12px;z-index:6;flex-wrap:wrap;justify-content:flex-end}
.hbtn{padding:6px 11px;border-radius:9px;font-size:.84em;font-weight:600;
  background:rgba(10,13,19,.6);border:1px solid var(--line);backdrop-filter:blur(6px);
  transition:background .15s,border-color .15s,color .15s}
.hbtn:hover{background:rgba(30,36,48,.85);border-color:rgba(232,182,76,.45)}
.hbtn.active{background:rgba(232,182,76,.9);color:#1a1305;border-color:transparent}

/* карточка главы */
.chapter-card{position:absolute;inset:0;display:grid;place-items:center;z-index:7;pointer-events:none;
  opacity:0;transition:opacity .6s ease;background:rgba(6,8,12,.55);backdrop-filter:blur(3px)}
.chapter-card.show{opacity:1}
.chapter-card span{font-size:clamp(20px,3.6vw,40px);font-weight:800;letter-spacing:.5px;text-align:center;
  padding:0 24px;border-top:2px solid rgba(232,182,76,.8);border-bottom:2px solid rgba(232,182,76,.8);
  padding:16px 30px;background:rgba(8,10,15,.5)}

/* диалог */
.dialogue{position:absolute;left:0;right:0;bottom:0;z-index:5;padding:0 clamp(10px,3.2vw,58px) clamp(12px,2.6vh,26px);
  pointer-events:none}
.name-plate{margin:0 0 -9px clamp(6px,1.6vw,22px);display:inline-block;position:relative;z-index:2}
.name-plate span{display:inline-block;padding:5px 18px;border-radius:10px 10px 0 0;font-weight:800;
  font-size:.98em;letter-spacing:.4px;background:rgba(12,15,22,.94);border:1px solid var(--line);border-bottom:0;
  color:var(--accent);box-shadow:var(--shadow)}
.name-plate.hidden{visibility:hidden}
.dbox{position:relative;background:var(--box);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(10px);box-shadow:var(--shadow);padding:clamp(15px,2.4vw,24px) clamp(18px,3vw,34px);
  min-height:clamp(104px,17vh,168px);max-width:1180px;margin:0 auto}
.dtext{font-size:clamp(15px,1.85vw,22px);line-height:1.62;white-space:pre-wrap;
  text-shadow:0 2px 10px rgba(0,0,0,.5)}
.dtext.narration{color:#d5dbe6;font-style:italic}
.dtext .cursor{display:inline-block;width:.5em;opacity:.5}
.dnext{position:absolute;right:16px;bottom:10px;color:var(--gold);opacity:0;font-size:.9em;
  animation:blink 1.3s ease-in-out infinite}
.dnext.on{opacity:.95}
@keyframes blink{0%,100%{transform:translateY(0);opacity:.35}50%{transform:translateY(3px);opacity:1}}

/* выборы */
.choices-wrap{position:absolute;inset:0;z-index:8;display:none;place-items:center;
  background:rgba(6,8,12,.5);backdrop-filter:blur(4px);padding:20px}
.choices-wrap.show{display:grid}
#game.choosing .dialogue{opacity:0;pointer-events:none;transition:opacity .25s ease}
#game.choosing .stage-click{pointer-events:none}
.choices-q{max-width:760px;text-align:center;margin-bottom:20px;font-size:clamp(15px,1.9vw,21px);
  color:#e7ecf5;text-shadow:0 2px 12px #000}
.choices{display:flex;flex-direction:column;gap:11px;width:min(660px,94vw)}
.choice{padding:14px 20px;border-radius:13px;background:rgba(18,22,31,.86);border:1px solid var(--line);
  text-align:left;font-weight:600;transition:transform .16s,background .16s,border-color .16s;
  box-shadow:0 8px 24px rgba(0,0,0,.4);animation:cin .35s backwards ease}
@keyframes cin{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.choice:hover{background:rgba(232,182,76,.16);border-color:rgba(232,182,76,.65);transform:translateY(-2px)}
.choice b{color:var(--gold);margin-right:9px}

/* ── оверлеи ───────────────────────────────────────────────── */
.overlay{position:fixed;inset:0;z-index:40;display:none;place-items:center;padding:16px;
  background:rgba(5,7,11,.72);backdrop-filter:blur(6px)}
.overlay.show{display:grid;animation:fadein .25s ease}
@keyframes fadein{from{opacity:0}to{opacity:1}}
.panel{width:min(720px,96vw);max-height:88vh;display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.panel.narrow{width:min(400px,94vw)}
.panel.wide{width:min(860px,96vw)}
.panel header{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:15px 20px;border-bottom:1px solid var(--line)}
.panel h2{font-size:1.12em;font-weight:800;letter-spacing:.3px}
.close{width:32px;height:32px;border-radius:9px;border:1px solid var(--line);opacity:.8}
.close:hover{background:rgba(255,255,255,.1);opacity:1}
.panel-body{padding:18px 20px;overflow:auto;overscroll-behavior:contain}
.menu-list{display:flex;flex-direction:column;gap:9px}
.menu-list .tbtn{text-align:center}

.log{display:flex;flex-direction:column;gap:13px}
.log .line{padding-left:12px;border-left:2px solid rgba(255,255,255,.14)}
.log .who{font-weight:800;font-size:.9em;margin-bottom:2px}
.log .what{color:#dbe2ee}
.log .line.narr .what{font-style:italic;color:#aab2c2}

.slots{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:11px}
.slot{text-align:left;padding:13px 15px;border-radius:13px;border:1px solid var(--line);
  background:rgba(255,255,255,.045);transition:background .15s,border-color .15s;min-height:96px}
.slot:hover{background:rgba(232,182,76,.13);border-color:rgba(232,182,76,.55)}
.slot .sname{font-weight:800;margin-bottom:4px;font-size:.94em}
.slot .smeta{color:var(--dim);font-size:.8em}
.slot .stext{color:#c9d2e0;font-size:.82em;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden}
.slot.empty{opacity:.55}
.slot.empty .sname{color:var(--dim)}

.row{display:flex;align-items:center;gap:14px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.07)}
.row>span{flex:1 1 auto}
.row input[type=range]{flex:0 0 46%;accent-color:var(--gold)}
.row em{flex:0 0 62px;text-align:right;color:var(--dim);font-style:normal;font-size:.88em}
.row.check input{width:20px;height:20px;accent-color:var(--gold)}
.row.buttons{justify-content:center;border-bottom:0;padding-top:18px}

.about p{margin-bottom:11px;color:#dbe2ee}
.about h3{margin:16px 0 8px;font-size:1em;color:var(--gold)}
.about ul{padding-left:20px;color:#dbe2ee}
.about li{margin-bottom:5px}

.credits{text-align:center;padding:34px 26px}
.credits .cend{font-size:.8em;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.credits h2{font-size:clamp(24px,4.4vw,42px);font-weight:900;margin-bottom:14px}
.credits p{color:#cdd5e2;max-width:600px;margin:0 auto 12px}
.credits .cstats{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:22px 0}
.credits .cstat{padding:9px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);font-size:.86em}
.credits .cstat b{color:var(--gold-2);display:block;font-size:1.3em}
.credits .cbtns{display:flex;gap:10px;justify-content:center;margin-top:20px;flex-wrap:wrap}

/* ── мобильные ─────────────────────────────────────────────── */
@media (max-width:760px){
  .sprite{height:74%}
  .sprite.center{margin-left:-22%}
  .sprite.left{left:-6%}
  .sprite.right{right:-6%}
  .hud{padding:7px 8px;gap:4px;flex-wrap:nowrap}
  .hbtn{padding:6px 9px;font-size:.78em}
  .hbtn[data-act="save"],.hbtn[data-act="load"],.hbtn[data-act="full"]{display:none}
  .dbox{min-height:96px}
  .title-inner{justify-content:flex-end;padding-bottom:42px}
}
@media (max-height:480px){
  .dbox{min-height:74px;padding:11px 14px}
  .dtext{font-size:15px;line-height:1.45}
  .sprite{height:96%}
}
@media (prefers-reduced-motion:reduce){
  .bg-layer.on,.title-bg{animation:none}
  *{transition-duration:.01ms!important}
}