:root{
  --bg:#101010; --panel:#181818; --panel2:#202020; --line:#303030; --text:#f4f4f4; --muted:#9f9f9f;
  --accent:#e8ff62; --accentText:#111; --danger:#ff7676; --ok:#9be68f; --radius:18px;
}
*{box-sizing:border-box} html{background:var(--bg);color-scheme:dark} body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
button,input{font:inherit} button{cursor:pointer}.hidden{display:none!important}.muted{color:var(--muted)}.small{font-size:.82rem}.eyebrow{font-size:.72rem;letter-spacing:.16em;color:var(--muted);font-weight:800}.row{display:flex;gap:12px}.between{justify-content:space-between}.center{align-items:center}.wide{width:100%}.stack{display:grid;gap:14px}
h1,h2,p{margin-top:0}h1{margin-bottom:4px;font-size:1.55rem}h2{font-size:1.12rem;margin-bottom:14px}
.auth-shell{min-height:100dvh;display:grid;place-items:center;padding:24px}.auth-card{width:min(440px,100%);background:var(--panel);border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:0 20px 70px #0008}.brand-row{display:flex;gap:14px;align-items:center;margin-bottom:24px}.logo-dot{width:48px;height:48px;border-radius:15px;background:conic-gradient(from 90deg,#ff556f,#ffca5c,#a5ff6a,#55dbff,#b16cff,#ff556f)}
label{display:grid;gap:7px;color:#d6d6d6;font-size:.9rem}input{width:100%;border:1px solid var(--line);background:#111;border-radius:12px;padding:12px;color:var(--text);outline:none}input:focus{border-color:#666}input[type=color]{padding:2px;height:46px}.segmented{display:grid;grid-template-columns:1fr 1fr;background:#111;border:1px solid var(--line);padding:4px;border-radius:14px;margin-bottom:16px}.segmented button{border:0;background:transparent;color:var(--muted);padding:10px;border-radius:10px}.segmented button.active{background:var(--panel2);color:var(--text)}
.primary,.secondary,.ghost,.text-btn{border:0;border-radius:12px;padding:12px 15px;font-weight:800}.primary{background:var(--accent);color:var(--accentText)}.secondary{background:#fff;color:#111}.ghost{background:#242424;color:var(--text);border:1px solid var(--line)}.text-btn{background:transparent;color:var(--accent);padding:4px}.compact{padding:9px 12px;font-size:.86rem}
.app{min-height:100dvh;padding-bottom:92px}.topbar{position:sticky;z-index:20;top:0;display:flex;align-items:center;justify-content:space-between;padding:calc(14px + env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) 14px max(16px,env(safe-area-inset-left));background:#101010e8;backdrop-filter:blur(14px);border-bottom:1px solid #242424}.topbar>div{display:grid}.content{width:min(760px,100%);margin:0 auto;padding:16px max(16px,env(safe-area-inset-right)) 16px max(16px,env(safe-area-inset-left))}.screen{display:none}.screen.active{display:block}.page-title{margin:8px 0 16px}.page-title h2{font-size:1.5rem;margin:2px 0}
.card,.hero-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:14px}.hero-card{padding:18px}.target-preview{height:150px;border-radius:16px;background:#6C7A42;margin:10px 0 12px;box-shadow:inset 0 0 0 1px #ffffff14}.target-code-row{display:grid;grid-template-columns:1fr 58px;gap:10px}.hex-field{text-transform:uppercase;font-weight:800;font-size:1.05rem}.card label+label{margin-top:12px}.card input[type=range]{padding:0;border:0;background:transparent;accent-color:var(--accent)}
.amount-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.amount-btn{background:#111;border:1px solid var(--line);color:var(--text);padding:10px 4px;border-radius:11px}.amount-btn.active{background:var(--accent);color:#111;border-color:var(--accent)}.inline-field{margin:12px 0;grid-template-columns:1fr 120px;align-items:center}.paint-selector{display:flex;gap:8px;overflow:auto;padding-bottom:4px}.paint-chip{flex:0 0 auto;display:flex;align-items:center;gap:7px;border:1px solid var(--line);background:#111;color:var(--text);padding:8px 10px;border-radius:999px}.paint-chip.off{opacity:.35}.swatch{width:20px;height:20px;border-radius:7px;border:1px solid #ffffff30}.empty-state{color:var(--muted);padding:8px 0}.result-card{border-color:#444}.mini-swatch{width:52px;height:52px;border-radius:14px;border:1px solid #ffffff26}.recipe-rows{display:grid;gap:9px;margin:14px 0}.recipe-row{display:grid;grid-template-columns:24px 1fr auto;gap:10px;align-items:center;background:#111;padding:10px;border-radius:12px}.recipe-row strong{display:block}.recipe-row .amount{font-size:1.05rem;font-weight:900}.result-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:.84rem;margin:12px 0 14px}.notice{border-radius:12px;padding:11px 12px;font-size:.85rem;margin:12px 0}.notice.warning{background:#3b2d12;color:#ffd987}.notice.info{background:#202a2f;color:#c5e8f5}
.paint-list,.history-list{display:grid;gap:10px}.paint-card,.history-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:13px}.paint-card{display:grid;grid-template-columns:52px 1fr auto;gap:12px;align-items:center}.paint-big-swatch{width:52px;height:52px;border-radius:14px;border:1px solid #ffffff25;background-size:cover;background-position:center}.paint-actions{display:flex;gap:6px}.icon-btn{border:1px solid var(--line);background:#111;color:var(--text);border-radius:10px;padding:8px}.paint-meta{font-size:.8rem;color:var(--muted);margin-top:3px}.history-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.history-colors{display:flex;align-items:center;gap:7px}.history-swatch{width:34px;height:34px;border-radius:10px;border:1px solid #ffffff22}.history-items{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.history-pill{background:#111;border:1px solid var(--line);padding:6px 8px;border-radius:999px;font-size:.78rem;color:#d8d8d8}
.bottom-nav{position:fixed;z-index:30;left:50%;bottom:max(10px,env(safe-area-inset-bottom));transform:translateX(-50%);width:min(720px,calc(100% - 20px));display:grid;grid-template-columns:repeat(5,1fr);background:#181818ed;backdrop-filter:blur(18px);border:1px solid #333;border-radius:20px;padding:7px}.nav-btn{border:0;background:transparent;color:var(--muted);padding:8px 4px;border-radius:14px;font-size:.73rem;display:grid;gap:2px;place-items:center}.nav-btn span{font-size:1.2rem}.nav-btn.active{background:#292929;color:var(--text)}
.modal{width:min(620px,calc(100% - 22px));border:1px solid #3a3a3a;background:#171717;color:var(--text);border-radius:22px;padding:0}.modal::backdrop{background:#000b;backdrop-filter:blur(4px)}.modal form{padding:18px;display:grid;gap:13px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}.sampler{background:#0d0d0d;border:1px solid var(--line);border-radius:14px;padding:8px}.sampler canvas{display:block;width:100%;max-height:340px;object-fit:contain;border-radius:10px;touch-action:manipulation}.sampler p{margin:8px 4px 2px}.toast{position:fixed;z-index:100;left:50%;top:calc(68px + env(safe-area-inset-top));transform:translate(-50%,-20px);opacity:0;pointer-events:none;background:#f1f1f1;color:#111;padding:10px 14px;border-radius:999px;font-weight:800;font-size:.86rem;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:520px){.content{padding:12px max(12px,env(safe-area-inset-right)) 12px max(12px,env(safe-area-inset-left))}.two-col{grid-template-columns:1fr}.target-preview{height:125px}.amount-grid{grid-template-columns:repeat(2,1fr)}.topbar{padding:calc(12px + env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) 12px max(12px,env(safe-area-inset-left))}.result-meta{display:grid;gap:4px}.auth-card{padding:19px}.paint-card{grid-template-columns:46px 1fr auto}.paint-big-swatch{width:46px;height:46px}}

.version{margin:12px 0 0;text-align:center;font-size:.72rem}.paint-big-swatch{overflow:hidden}.paint-big-swatch img{width:100%;height:100%;display:block;object-fit:cover}.sampler canvas{height:auto;max-width:100%}button:disabled{cursor:not-allowed;opacity:.55}
/* Mobile hardening */
.topbar>div{min-width:0}.topbar #userEmail{max-width:62vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topbar #logoutBtn{flex:0 0 auto}
.app{padding-bottom:calc(105px + env(safe-area-inset-bottom))}
.modal{max-height:calc(100dvh - 22px);overflow:auto;overscroll-behavior:contain}
input[type=file]{min-width:0;overflow:hidden}
.result-card{scroll-margin-top:76px}

.paint-card>div:nth-child(2),.recipe-row>div{min-width:0}.paint-card strong,.paint-meta,.recipe-row strong,.history-pill{overflow-wrap:anywhere}.history-pill{max-width:100%}

/* PaintMix 1.3 – phone-first UX */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;overflow-x:hidden}
body{overflow-x:hidden;touch-action:manipulation}
button,input{min-height:44px}
button{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
input{font-size:16px}
input[type="range"]{min-height:40px;touch-action:pan-y}
input[type="range"]::-webkit-slider-thumb{width:28px;height:28px}
input[type="range"]::-moz-range-thumb{width:28px;height:28px}
.primary,.secondary,.ghost{min-height:48px}
.icon-btn{min-width:44px;min-height:44px;display:grid;place-items:center}
.paint-chip{min-height:44px;scroll-snap-align:start}
.paint-selector{-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity;overscroll-behavior-x:contain}
.bottom-nav{user-select:none;-webkit-user-select:none}
.nav-btn b{font:inherit;font-weight:700}
.account-user-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.account-user-row strong{display:block;margin-top:4px;overflow-wrap:anywhere}.account-logout{margin-top:14px}
.modal-header h2{margin:2px 0 0}
.photo-upload input[type=file]{padding:7px;min-height:52px}.photo-upload input[type=file]::file-selector-button{border:0;border-radius:10px;background:#2a2a2a;color:var(--text);padding:10px 12px;margin-right:10px;font-weight:800}

@media (max-width:640px){
  :root{--mobile-nav-h:72px}
  body.keyboard-open .bottom-nav{display:none}
  body.keyboard-open .app{padding-bottom:18px}
  .auth-shell{place-items:start center;padding:max(24px,calc(env(safe-area-inset-top) + 18px)) max(14px,env(safe-area-inset-right)) max(24px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left))}
  .auth-card{width:100%;max-width:460px;padding:20px 16px;border-radius:22px}
  .brand-row{margin-bottom:18px}.logo-dot{width:44px;height:44px;border-radius:14px}.brand-row h1{font-size:1.45rem}.brand-row p{font-size:.9rem;margin-bottom:0}
  .app{padding-bottom:calc(var(--mobile-nav-h) + env(safe-area-inset-bottom) + 10px)}
  .topbar{min-height:58px;padding:calc(10px + env(safe-area-inset-top)) max(14px,env(safe-area-inset-right)) 10px max(14px,env(safe-area-inset-left))}
  .topbar #userEmail,.topbar .desktop-logout{display:none}
  .topbar strong{font-size:1.05rem;letter-spacing:.01em}
  .content{width:100%;padding:10px max(12px,env(safe-area-inset-right)) 14px max(12px,env(safe-area-inset-left))}
  .card,.hero-card{border-radius:16px;padding:14px;margin-bottom:10px}
  .hero-card{padding-top:14px}
  .page-title{margin:6px 2px 12px}.page-title h2{font-size:1.35rem;margin-bottom:0}.page-title>.primary{min-height:44px;padding:9px 12px}
  .target-preview{height:116px;margin:8px 0 10px;border-radius:14px}
  .target-code-row{grid-template-columns:minmax(0,1fr) 56px}.target-code-row input[type=color]{height:48px;min-height:48px}
  .card h2{font-size:1.06rem;margin-bottom:12px}
  label{font-size:.88rem;gap:6px}
  .amount-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.amount-btn{min-height:48px;padding:8px 2px;font-size:.9rem}
  .inline-field{grid-template-columns:minmax(0,1fr) 108px;margin:10px 0}
  .paint-selector{gap:7px;margin-right:-12px;padding-right:12px}.paint-chip{padding:8px 11px}
  .paint-card{grid-template-columns:48px minmax(0,1fr);gap:10px;padding:12px}.paint-big-swatch{width:48px;height:48px}.paint-actions{grid-column:2;justify-content:flex-end;margin-top:2px}.paint-actions .icon-btn{min-width:46px}
  .recipe-row{grid-template-columns:22px minmax(0,1fr) auto;gap:8px;padding:10px}.recipe-row .amount{font-size:1rem;white-space:nowrap}
  .result-meta{display:grid;grid-template-columns:1fr;gap:4px}.mini-swatch{width:48px;height:48px}
  .history-card{padding:12px}.history-top{align-items:flex-start}.history-swatch{width:32px;height:32px}.history-pill{font-size:.77rem}
  .bottom-nav{left:0;right:0;bottom:0;transform:none;width:100%;max-width:none;border-radius:0;border-left:0;border-right:0;border-bottom:0;padding:6px max(6px,env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) max(6px,env(safe-area-inset-left));min-height:calc(var(--mobile-nav-h) + env(safe-area-inset-bottom));background:#181818f5}
  .nav-btn{min-height:58px;padding:5px 2px;border-radius:13px;font-size:.69rem;line-height:1.05;gap:1px}.nav-btn span{font-size:1.28rem;line-height:1.2}.nav-btn.active{background:#2b2b2b}
  .modal{position:fixed;inset:auto 0 0 0;margin:0;width:100%;max-width:none;max-height:min(92dvh,var(--app-vh,92dvh));border-left:0;border-right:0;border-bottom:0;border-radius:24px 24px 0 0;overflow:auto}
  .modal form{padding:0 14px calc(16px + env(safe-area-inset-bottom));gap:12px}
  .modal-header{position:sticky;top:0;z-index:4;background:#171717;padding:14px 0 11px;border-bottom:1px solid #292929;margin-bottom:1px}
  .modal-header .ghost{min-width:46px;min-height:46px;padding:8px}
  .modal-save{min-height:52px;margin-top:2px}
  .two-col{grid-template-columns:1fr;gap:10px}
  .sampler{padding:7px}.sampler canvas{max-height:42dvh;border-radius:9px}
  .toast{top:calc(60px + env(safe-area-inset-top));max-width:calc(100% - 24px);text-align:center;white-space:normal;border-radius:14px}
  .account-card{padding-bottom:14px}
}

@media (max-width:360px){
  .content{padding-left:max(10px,env(safe-area-inset-left));padding-right:max(10px,env(safe-area-inset-right))}
  .card,.hero-card{padding:12px}.amount-btn{font-size:.84rem}.target-preview{height:104px}
  .paint-chip{font-size:.85rem}.recipe-row{grid-template-columns:20px minmax(0,1fr);}.recipe-row .amount{grid-column:2;justify-self:start}.history-top{display:grid;grid-template-columns:1fr auto}
}

@media (max-width:640px) and (orientation:landscape) and (max-height:500px){
  :root{--mobile-nav-h:60px}.nav-btn{min-height:48px}.nav-btn span{font-size:1.08rem}.modal{max-height:96dvh}.target-preview{height:86px}
}

@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important}}
.file-input-hidden{position:absolute!important;width:1px!important;height:1px!important;min-height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.photo-upload{position:relative}.photo-action{display:flex;align-items:center;justify-content:center;min-height:52px;padding:11px 13px;border:1px solid #3b3b3b;border-radius:12px;background:#242424;color:var(--text);font-weight:800;text-align:center;cursor:pointer;-webkit-tap-highlight-color:transparent}.photo-upload:focus-within .photo-action{outline:2px solid #666;outline-offset:2px}.photo-upload #photoFileName{overflow-wrap:anywhere}
input[type="range"]{min-height:44px}


/* PaintMix 1.4 – calibration */
.action-stack{display:grid;gap:9px}.calibration-summary-card{padding-bottom:14px}.calibration-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}.calibration-stats>div{background:#111;border:1px solid var(--line);border-radius:14px;padding:12px 8px;text-align:center}.calibration-stats strong{display:block;font-size:1.45rem}.calibration-stats span{display:block;margin-top:3px;font-size:.75rem;color:var(--muted)}.calibration-guide ol{margin:0 0 14px;padding-left:22px;color:#ddd}.calibration-guide li+li{margin-top:7px}.calibration-list{display:grid;gap:10px}.calibration-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:12px;display:grid;gap:10px}.calibration-card-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.calibration-card-title{min-width:0}.calibration-card-title strong{display:block;overflow-wrap:anywhere}.calibration-chip-row{display:flex;flex-wrap:wrap;gap:6px}.calibration-chip{display:inline-flex;align-items:center;gap:6px;background:#111;border:1px solid var(--line);border-radius:999px;padding:6px 9px;font-size:.78rem}.calibration-swatch-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}.calibration-swatch-box{display:flex;align-items:center;gap:9px;background:#111;border:1px solid var(--line);border-radius:12px;padding:8px;min-width:0}.calibration-swatch-box i{width:34px;height:34px;border-radius:9px;border:1px solid #ffffff22;flex:0 0 auto}.calibration-swatch-box div{min-width:0}.calibration-swatch-box span,.sample-readouts span{display:block;font-size:.7rem;color:var(--muted)}.calibration-swatch-box b{display:block;font-size:.83rem;overflow-wrap:anywhere}.calibration-components{display:grid;gap:8px}.cal-component{display:grid;grid-template-columns:minmax(0,1fr) 96px;gap:10px;align-items:center;background:#111;border:1px solid var(--line);border-radius:12px;padding:9px}.cal-component-main{display:flex;align-items:center;gap:9px;min-width:0}.cal-component-main .swatch{flex:0 0 auto}.cal-component-main span{overflow-wrap:anywhere}.cal-component input{width:100%;text-align:right}.calibration-total-ok{color:#b7e4c7}.calibration-total-warn{color:#ffcf70}.sample-controls{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:9px}.sample-controls button.active{outline:2px solid #e7e7e7;background:#353535}.sample-readouts{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:9px}.sample-readouts>div{display:grid;grid-template-columns:1fr auto;gap:2px 8px;align-items:center;background:#111;border:1px solid var(--line);border-radius:11px;padding:8px}.sample-readouts i{grid-column:2;grid-row:1/3;width:28px;height:28px;border-radius:8px;border:1px solid #ffffff22;background:#202020}.sample-readouts b{font-size:.78rem}.calibration-badge{display:inline-flex;align-items:center;gap:4px;margin-top:5px;border:1px solid #315d42;background:#183524;color:#b7e4c7;border-radius:999px;padding:3px 7px;font-size:.68rem;font-weight:800}.calibration-confidence-line{display:flex;align-items:center;gap:8px}.confidence-dot{width:9px;height:9px;border-radius:50%;background:#777;flex:0 0 auto}.confidence-high{background:#51c878}.confidence-medium{background:#e3b341}.confidence-low{background:#888}.calibration-modal .segmented{margin:0}.calibration-modal input[type=number]{text-align:right}
@media(max-width:640px){
  .bottom-nav{grid-template-columns:repeat(5,1fr)}
  .nav-btn{font-size:.61rem;padding-left:1px;padding-right:1px}.nav-btn span{font-size:1.18rem}
  .calibration-stats{gap:6px}.calibration-stats>div{padding:10px 4px}.calibration-stats strong{font-size:1.25rem}.calibration-stats span{font-size:.67rem}
  .sample-readouts{grid-template-columns:1fr}.calibration-swatch-row{grid-template-columns:1fr}.cal-component{grid-template-columns:minmax(0,1fr) 82px}.sample-controls{grid-template-columns:1fr}
}
@media(max-width:360px){.nav-btn{font-size:.56rem}.nav-btn span{font-size:1.08rem}.calibration-stats span{font-size:.62rem}}