*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#0F172A;--bg2:#111827;--bg3:#1a2236;--bg4:#1e2d44;
  --cyan:#22D3EE;--purple:#A855F7;--green:#10B981;--amber:#f59e0b;--red:#ef4444;
  --text:#e2e8f0;--text2:#94a3b8;--text3:#64748b;
  --border:rgba(255,255,255,0.07);--border2:rgba(34,211,238,0.2);
  --font:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --sat:env(safe-area-inset-top,0px);--sab:env(safe-area-inset-bottom,0px);
  --sal:env(safe-area-inset-left,0px);--sar:env(safe-area-inset-right,0px);
}
html{height:100%;-webkit-text-size-adjust:100%}
body{
  min-height:100%;min-height:100dvh;
  background:#080d1a;
  font-family:var(--font);
  color:var(--text);
  overflow-x:hidden;
  overscroll-behavior-y:none;
}

/* ── APP SHELL ── */
#app{
  display:flex;flex-direction:column;
  min-height:100vh;min-height:100dvh;
  background:linear-gradient(170deg,#111827 0%,#0F172A 55%,#090e1c 100%);
  max-width:560px;margin:0 auto;position:relative;overflow:hidden;
  padding-left:var(--sal);padding-right:var(--sar);
}
.orb1{position:absolute;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(34,211,238,0.1) 0%,transparent 70%);top:-90px;left:50%;transform:translateX(-50%);pointer-events:none;transition:background 0.5s;z-index:0}
.orb2{position:absolute;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(168,85,247,0.07) 0%,transparent 70%);top:380px;right:-70px;pointer-events:none;z-index:0}
.orb3{position:absolute;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(16,185,129,0.05) 0%,transparent 70%);bottom:120px;left:-60px;pointer-events:none;z-index:0}

/* ── HEADER ── */
.header{
  display:flex;justify-content:space-between;align-items:center;
  padding:calc(var(--sat) + 10px) 18px 6px;
  position:relative;z-index:10;flex-shrink:0;
}
.logo{font-size:19px;font-weight:800;color:#fff;letter-spacing:-0.5px}
.logo span{color:var(--cyan)}
.hdr-right{display:flex;gap:8px;align-items:center}
.unit-wrap{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.08);border-radius:20px;padding:5px 5px 5px 11px;cursor:pointer;user-select:none}
.unit-lbl{font-size:10px;font-weight:700;letter-spacing:0.4px;color:rgba(255,255,255,0.3);transition:color 0.25s}
.unit-lbl.on{color:var(--cyan)}
.unit-track{width:30px;height:17px;border-radius:9px;background:rgba(34,211,238,0.15);border:1px solid rgba(34,211,238,0.3);position:relative;flex-shrink:0}
.unit-thumb{position:absolute;width:13px;height:13px;border-radius:50%;background:var(--cyan);top:1px;left:1px;transition:transform 0.25s cubic-bezier(.4,0,.2,1);box-shadow:0 0 6px var(--cyan)}
.unit-thumb.r{transform:translateX(13px)}
.icon-btn{
  width:34px;height:34px;border-radius:10px;
  background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,0.45);cursor:pointer;transition:all 0.2s;
}
.icon-btn:active{transform:scale(0.92);background:rgba(255,255,255,0.1)}

/* ── NAV ── */
.nav{display:flex;border-bottom:1px solid var(--border);position:relative;z-index:10;flex-shrink:0}
.nav-btn{
  flex:1;padding:8px 4px 7px;background:none;border:none;
  color:var(--text3);font-size:10px;font-family:var(--font);font-weight:500;letter-spacing:0.2px;
  cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px;
  border-bottom:2px solid transparent;transition:color 0.2s,border-color 0.2s;
  min-height:40px;
}
.nav-btn svg{width:18px;height:18px;stroke-width:1.8}
.nav-btn.active{color:var(--cyan);border-bottom-color:var(--cyan)}
.nav-btn:active{opacity:0.6}

/* ── SCREENS ── */
.screen{display:none;flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;min-height:0}
.screen.active{display:flex;flex-direction:column}
.screen-inner{padding:14px 18px calc(28px + var(--sab));position:relative;z-index:5;flex:1}

/* Test screen: fit everything in one view, no scrolling needed */
#screen-test{overflow:hidden}
#screen-test .screen-inner{
  padding:10px 16px calc(10px + var(--sab));
  display:flex;flex-direction:column;
  flex:1;min-height:0;gap:8px;
}
.main-grid{
  display:flex;flex-direction:column;
  flex:1;min-height:0;justify-content:space-evenly;gap:6px;
}
.main-grid > *{flex-shrink:1;min-height:0}
.stats-grid{flex-shrink:0}
.wave-card{flex-shrink:0}
.bottom-row{flex-shrink:0}

/* ── SERVER PILL ── */
.srv-pill{
  background:rgba(34,211,238,0.06);border:1px solid rgba(34,211,238,0.14);
  border-radius:13px;padding:8px 14px;display:flex;align-items:center;gap:10px;
  cursor:pointer;transition:border-color 0.2s;flex-shrink:0;
}
.srv-pill:active{border-color:rgba(34,211,238,0.3)}
.sdot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:pdot 2.2s ease-in-out infinite;flex-shrink:0}
.sdot.bad{background:var(--red);box-shadow:0 0 8px var(--red);animation:none}
.sdot.checking{background:var(--amber);box-shadow:0 0 8px var(--amber);animation:pdot 0.8s ease-in-out infinite}
@keyframes pdot{0%,100%{box-shadow:0 0 5px var(--green)}50%{box-shadow:0 0 14px var(--green)}}
.srv-info{flex:1;min-width:0}
.srv-name{font-size:13px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.srv-sub{font-size:11px;color:var(--text3);margin-top:2px}
.srv-refresh{
  background:none;border:none;color:var(--text3);cursor:pointer;
  width:30px;height:30px;display:flex;align-items:center;justify-content:center;
  border-radius:8px;flex-shrink:0;transition:all 0.2s;
}
.srv-refresh:active{background:rgba(255,255,255,0.08);transform:rotate(90deg)}

/* ── GAUGE ── */
.gauge-section{display:flex;flex-direction:column;align-items:center;position:relative;z-index:5;flex-shrink:1;min-height:0}
.gauge-wrap{position:relative;width:min(240px,66vw,38vh);height:calc(min(240px,66vw,38vh) * 0.6167);max-width:240px}
.gauge-glass{position:absolute;inset:0;border-radius:50% 50% 0 0/100% 100% 0 0;background:rgba(255,255,255,0.012);border:1px solid rgba(255,255,255,0.04);border-bottom:none}
#gaugeCanvas{position:absolute;top:0;left:0;width:100%;height:100%;transition:opacity 0.4s,filter 0.4s}
.speed-center{position:absolute;bottom:2%;left:50%;transform:translateX(-50%);text-align:center;white-space:nowrap;transition:opacity 0.4s,filter 0.4s}
.speed-num{font-size:clamp(30px,9vw,42px);font-weight:800;color:#fff;letter-spacing:-2px;line-height:1;transition:text-shadow 0.4s}
.speed-unit{font-size:9px;color:var(--text3);letter-spacing:2px;margin-top:2px}
.phase-badge{
  margin-top:6px;padding:5px 14px;border-radius:20px;font-size:11px;font-weight:500;
  border:1px solid rgba(34,211,238,0.22);background:rgba(34,211,238,0.08);color:var(--cyan);
  display:flex;align-items:center;gap:6px;transition:all 0.3s;min-height:24px;text-align:center;
}
.phase-badge.ok{border-color:rgba(16,185,129,0.35);background:rgba(16,185,129,0.1);color:var(--green)}
.phase-badge.warn{border-color:rgba(245,158,11,0.35);background:rgba(245,158,11,0.1);color:var(--amber)}
.phase-badge.err{border-color:rgba(239,68,68,0.35);background:rgba(239,68,68,0.1);color:var(--red)}

/* ── PLAY OVERLAY ON GAUGE: idle = gauge hidden behind play button; running = gauge revealed ── */
#gaugeSection.idle #gaugeCanvas,
#gaugeSection.idle .speed-center{opacity:0;filter:blur(6px);pointer-events:none}
.gauge-play-overlay{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  opacity:1;transition:opacity 0.35s,transform 0.35s;z-index:6;
}
#gaugeSection.running .gauge-play-overlay,
#gaugeSection.done .gauge-play-overlay{
  opacity:0;transform:scale(0.7);pointer-events:none;
}
.start-btn{
  position:relative;width:min(108px,30vw,18vh);height:min(108px,30vw,18vh);border-radius:50%;
  background:none;border:none;cursor:pointer;outline:none;flex-shrink:0;
}

/* ── STAT CARDS ── */
.stats-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;flex-shrink:0}
.stat-card{
  background:rgba(255,255,255,0.035);border:1px solid rgba(255,255,255,0.06);
  border-radius:14px;padding:8px 6px;text-align:center;position:relative;overflow:hidden;
  transition:border-color 0.4s,background 0.4s;min-height:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px}
.stat-card.ping::before{background:linear-gradient(90deg,transparent,var(--green),transparent)}
.stat-card.dl::before{background:linear-gradient(90deg,transparent,var(--cyan),transparent)}
.stat-card.ul::before{background:linear-gradient(90deg,transparent,var(--purple),transparent)}
.stat-card.active-ping{border-color:rgba(16,185,129,0.4);background:rgba(16,185,129,0.08)}
.stat-card.active-dl{border-color:rgba(34,211,238,0.4);background:rgba(34,211,238,0.08)}
.stat-card.active-ul{border-color:rgba(168,85,247,0.4);background:rgba(168,85,247,0.08)}
.stat-icon{font-size:11px;margin-bottom:2px}
.stat-val{font-size:16px;font-weight:700;letter-spacing:-0.5px;line-height:1}
.stat-val.c-green{color:var(--green)}.stat-val.c-cyan{color:var(--cyan)}.stat-val.c-purple{color:var(--purple)}
.stat-lbl{font-size:8px;color:var(--text3);margin-top:3px;letter-spacing:0.3px}
.stat-unit{font-size:8px;color:rgba(255,255,255,0.18)}

/* ── WAVE ── */
.wave-card{background:rgba(255,255,255,0.025);border:1px solid var(--border);border-radius:14px;padding:7px 12px;overflow:hidden;flex-shrink:0;transition:border-color 0.4s}
#waveCanvas{display:block;width:100%;height:32px}

/* ── ISP CARD ── */
.isp-card{background:rgba(255,255,255,0.03);border:1px solid rgba(168,85,247,0.15);border-radius:14px;padding:9px 12px;position:relative;overflow:hidden}
.isp-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(168,85,247,0.5),transparent)}
.isp-row{display:flex;align-items:center;gap:8px;height:100%}
.isp-icon{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,rgba(168,85,247,0.15),rgba(34,211,238,0.1));border:1px solid rgba(168,85,247,0.2);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.isp-body{flex:1;min-width:0}
.isp-name{font-size:12px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.isp-ip{font-size:10px;color:var(--text3);margin-top:1px;font-family:'SF Mono',Menlo,monospace;letter-spacing:0.2px}
.isp-side{text-align:right;flex-shrink:0}
.isp-badge{font-size:9px;padding:2px 8px;border-radius:8px;background:rgba(16,185,129,0.1);color:var(--green);border:1px solid rgba(16,185,129,0.2);font-weight:500}

.s-outer{position:absolute;inset:0;border-radius:50%;padding:2px;background:conic-gradient(from 0deg,var(--cyan),#818cf8,var(--purple),var(--cyan));animation:spin 3.5s linear infinite;animation-play-state:paused}
.s-outer.go{animation-play-state:running}
.s-mid{position:absolute;inset:2px;border-radius:50%;background:#0F172A}
.s-inner{position:absolute;inset:13px;border-radius:50%;background:linear-gradient(135deg,rgba(34,211,238,0.1),rgba(168,85,247,0.1));border:1px solid rgba(255,255,255,0.07);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px}
.s-icon{font-size:clamp(18px,5vw,24px);color:#fff}
.s-lbl{font-size:10px;font-weight:700;color:var(--cyan);letter-spacing:1.8px}
.ripple{position:absolute;inset:-20px;border-radius:50%;border:1.5px solid rgba(34,211,238,0.22);animation:ripout 2.2s ease-out infinite;pointer-events:none}
.ripple:nth-child(2){animation-delay:.8s;border-color:rgba(168,85,247,0.18)}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes ripout{0%{transform:scale(.88);opacity:1}100%{transform:scale(1.5);opacity:0}}

/* ── BOTTOM ROW: ISP card + mini share button ── */
.bottom-row{display:flex;gap:8px;align-items:stretch;flex-shrink:0}
.bottom-row .isp-card{flex:1;margin-bottom:0}
.share-btn-mini{
  flex-shrink:0;width:64px;border-radius:14px;
  border:1px solid rgba(168,85,247,0.3);background:rgba(168,85,247,0.08);color:var(--purple);
  font-family:var(--font);font-size:9px;font-weight:700;letter-spacing:0.2px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;transition:all 0.25s;
}
.share-btn-mini:disabled{opacity:0.35;cursor:not-allowed}
.share-btn-mini:not(:disabled):active{transform:scale(0.94);background:rgba(168,85,247,0.15)}

/* ── HAPTIC ── */
.haptic-flash{position:fixed;inset:0;pointer-events:none;z-index:9999;background:rgba(34,211,238,0.04);opacity:0;transition:opacity 0.12s}
.haptic-flash.on{opacity:1}
.haptic-label{
  position:fixed;bottom:calc(100px + var(--sab));left:50%;transform:translateX(-50%);
  background:rgba(34,211,238,0.12);border:1px solid rgba(34,211,238,0.3);border-radius:20px;
  padding:6px 16px;font-size:12px;color:var(--cyan);font-family:var(--font);
  pointer-events:none;z-index:9999;opacity:0;transition:opacity 0.2s;white-space:nowrap;
}
.haptic-label.on{opacity:1}

/* ── TOAST ── */
.toast{
  position:fixed;top:calc(var(--sat) + 12px);left:50%;transform:translateX(-50%) translateY(-20px);
  background:rgba(20,20,30,0.95);border:1px solid rgba(255,255,255,0.12);border-radius:12px;
  padding:10px 18px;font-size:12px;color:var(--text);font-family:var(--font);
  z-index:10000;opacity:0;transition:all 0.3s;pointer-events:none;max-width:90vw;text-align:center;
  backdrop-filter:blur(10px);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.error{border-color:rgba(239,68,68,0.3);color:#fca5a5}

/* ── HISTORY SCREEN ── */
.screen-title{font-size:18px;font-weight:700;color:var(--text);margin-bottom:14px;display:flex;justify-content:space-between;align-items:center;min-height:32px}
.clear-btn{font-size:11px;color:var(--red);background:rgba(239,68,68,0.1);border:1px solid rgba(239,68,68,0.2);border-radius:8px;padding:7px 12px;cursor:pointer;font-family:var(--font);font-weight:500}
.clear-btn:active{opacity:0.6}
.hist-stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:14px}
.hist-stat-card{background:rgba(255,255,255,0.03);border:1px solid var(--border);border-radius:12px;padding:10px 6px;text-align:center}
.hist-stat-lbl{font-size:9px;color:var(--text3);margin-bottom:4px}
.hist-stat-val{font-size:16px;font-weight:700}
.hist-empty{text-align:center;padding:60px 20px;color:var(--text3)}
.hist-empty svg{opacity:0.2;margin-bottom:14px}
.hist-empty-title{font-size:14px}
.hist-empty-sub{font-size:12px;margin-top:6px}
.hist-item{background:rgba(255,255,255,0.03);border:1px solid var(--border);border-radius:14px;padding:14px;margin-bottom:10px;position:relative}
.hist-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px;gap:8px}
.hist-isp{font-size:13px;font-weight:600;color:var(--text);display:flex;align-items:center;flex-wrap:wrap;gap:6px}
.hist-ts{font-size:10px;color:var(--text3);white-space:nowrap;flex-shrink:0}
.hist-speeds{display:flex;gap:20px}
.hist-speed{font-size:12px;color:var(--text2)}
.hist-speed strong{font-size:17px;font-weight:700}
.hist-speed.dl strong{color:var(--cyan)}
.hist-speed.ul strong{color:var(--purple)}
.hist-meta{font-size:10px;color:var(--text3);margin-top:8px}
.hist-del{position:absolute;top:12px;right:12px;background:none;border:none;color:var(--text3);cursor:pointer;width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:6px;opacity:0;transition:opacity 0.2s}
.hist-item:hover .hist-del,.hist-item:active .hist-del{opacity:1}
.grade-badge{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px}
.grade-A{background:rgba(34,211,238,0.12);color:var(--cyan)}
.grade-B{background:rgba(16,185,129,0.12);color:var(--green)}
.grade-C{background:rgba(245,158,11,0.12);color:var(--amber)}
.grade-D{background:rgba(239,68,68,0.12);color:var(--red)}

/* ── INFO SCREEN ── */
.info-card{background:rgba(255,255,255,0.03);border:1px solid var(--border);border-radius:14px;padding:14px;margin-bottom:12px}
.info-card.warn-card{border-color:rgba(245,158,11,0.18);background:rgba(245,158,11,0.04)}
.info-card-hdr{font-size:13px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px;margin-bottom:8px}
.info-text{font-size:12.5px;color:var(--text2);line-height:1.65}
.info-list{font-size:12.5px;color:var(--text2);line-height:1.7;padding-left:18px;margin-top:6px}
.info-list li{margin-bottom:4px}
.info-list strong{color:var(--text)}
.app-version{text-align:center;font-size:11px;color:var(--text3);margin-top:18px;padding-bottom:10px}
.server-select{display:flex;gap:8px;flex-wrap:wrap}
.server-opt{
  padding:8px 14px;border-radius:10px;border:1px solid rgba(255,255,255,0.1);
  background:rgba(255,255,255,0.04);color:var(--text2);font-family:var(--font);
  font-size:12px;cursor:pointer;font-weight:500;
}
.server-opt.active{border-color:rgba(34,211,238,0.4);background:rgba(34,211,238,0.1);color:var(--cyan)}

/* ── SHARE MODAL ── */
.modal-bg{
  position:fixed;inset:0;background:rgba(0,0,0,0.75);
  display:flex;align-items:flex-end;justify-content:center;z-index:1000;
  opacity:0;pointer-events:none;transition:opacity 0.3s;
}
.modal-bg.open{opacity:1;pointer-events:all}
.share-card{
  width:100%;max-width:400px;background:linear-gradient(145deg,#111827,#0F172A);
  border:1px solid rgba(255,255,255,0.1);border-radius:24px 24px 0 0;overflow:hidden;
  transform:translateY(30px);transition:transform 0.3s cubic-bezier(.16,1,.3,1);
  padding-bottom:var(--sab);
}
.modal-bg.open .share-card{transform:translateY(0)}
@media(min-width:480px){
  .modal-bg{align-items:center}
  .share-card{border-radius:24px;margin-bottom:0}
}
.sc-top{background:linear-gradient(135deg,rgba(34,211,238,0.12),rgba(168,85,247,0.12));padding:20px 20px 14px;border-bottom:1px solid rgba(255,255,255,0.06)}
.sc-brand{font-size:19px;font-weight:800;color:#fff}
.sc-brand span{color:var(--cyan)}
.sc-date{font-size:10px;color:rgba(255,255,255,0.3);margin-top:3px}
.verified{display:flex;align-items:center;gap:5px;background:rgba(16,185,129,0.12);border:1px solid rgba(16,185,129,0.25);border-radius:9px;padding:5px 10px;font-size:10px;color:var(--green);font-weight:600}
.vdot{width:5px;height:5px;border-radius:50%;background:var(--green);box-shadow:0 0 6px var(--green)}
.sc-speeds{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:18px 20px 0}
.sc-spd-box{background:rgba(255,255,255,0.04);border-radius:14px;padding:16px 14px;border:1px solid rgba(255,255,255,0.06);position:relative;overflow:hidden}
.sc-spd-box::before{content:'';position:absolute;top:0;left:0;right:0;height:1px}
.sc-spd-box.dl::before{background:linear-gradient(90deg,transparent,var(--cyan),transparent)}
.sc-spd-box.ul::before{background:linear-gradient(90deg,transparent,var(--purple),transparent)}
.sc-spd-lbl{font-size:9px;color:rgba(255,255,255,0.3);letter-spacing:1px;margin-bottom:6px}
.sc-spd-val{font-size:30px;font-weight:800;letter-spacing:-1px;line-height:1}
.sc-spd-val.dl{color:var(--cyan)}.sc-spd-val.ul{color:var(--purple)}
.sc-spd-unit{font-size:10px;color:rgba(255,255,255,0.28);margin-top:3px}
.sc-meta{display:flex;padding:14px 20px;border-top:1px solid rgba(255,255,255,0.05);margin-top:16px}
.sc-meta-item{flex:1;text-align:center;border-right:1px solid rgba(255,255,255,0.05)}
.sc-meta-item:last-child{border-right:none}
.sc-meta-lbl{font-size:9px;color:rgba(255,255,255,0.25);letter-spacing:0.5px}
.sc-meta-val{font-size:14px;font-weight:700;margin-top:4px}
.sc-isp{padding:10px 20px 14px;display:flex;align-items:center;gap:7px;border-bottom:1px solid rgba(255,255,255,0.05)}
.sc-isp-dot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 7px var(--green);flex-shrink:0}
.sc-isp-txt{font-size:11px;color:rgba(255,255,255,0.3)}
.sc-isp-txt strong{color:rgba(255,255,255,0.6);font-weight:500}
.sc-footer{padding:12px 20px;display:flex;justify-content:space-between;align-items:center}
.sc-tag{font-size:10px;color:rgba(255,255,255,0.18);letter-spacing:0.3px}
.sc-bar{width:60px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--purple));opacity:0.55}
.modal-actions{display:flex;gap:10px;padding:6px 18px 18px}
.modal-close{flex:1;padding:13px;border-radius:13px;border:1px solid rgba(255,255,255,0.1);background:rgba(255,255,255,0.05);color:var(--text2);font-family:var(--font);font-size:13px;font-weight:600;cursor:pointer}
.modal-close:active{background:rgba(255,255,255,0.1)}
.modal-copy{flex:2;padding:13px;border-radius:13px;border:1px solid rgba(168,85,247,0.35);background:rgba(168,85,247,0.12);color:var(--purple);font-family:var(--font);font-size:13px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:7px}
.modal-copy:active{transform:scale(0.97);background:rgba(168,85,247,0.2)}

/* ── RESPONSIVE: small phones ── */
@media (max-width:360px){
  .header{padding-left:14px;padding-right:14px}
  .screen-inner{padding-left:14px;padding-right:14px}
  .stats-grid{gap:6px}
  .stat-card{padding:6px 4px}
}

/* ── RESPONSIVE: very short viewports (landscape phones, small screens) ── */
@media (max-height:600px){
  .gauge-wrap{width:min(150px,46vw,26vh) !important;height:calc(min(150px,46vw,26vh) * 0.6167) !important}
  .start-btn{width:min(76px,22vw,13vh) !important;height:min(76px,22vw,13vh) !important}
  .phase-badge{margin-top:3px;padding:3px 12px;min-height:20px;font-size:10px}
  .speed-num{font-size:clamp(22px,7vw,30px)}
  #waveCanvas{height:28px}
  .nav-btn{min-height:34px;padding:6px 4px 5px}
  .header{padding-top:calc(var(--sat) + 6px);padding-bottom:4px}
}

/* ── RESPONSIVE: tablets/desktop preview ── */
@media (min-width:560px){
  body{display:flex;justify-content:center;padding:20px 0}
  #app{min-height:90vh;border-radius:32px;box-shadow:0 0 0 1px rgba(255,255,255,0.08),0 30px 80px rgba(0,0,0,0.6)}
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important}
}

/* ── SAFE TOUCH TARGETS ── */
button{min-height:36px;-webkit-user-select:none;user-select:none}