/* Optivolt Proposal Maker — app UI (clean iOS-inspired style) */
:root{
  --bg:#f2f2f7; --bg2:#ffffff; --bg3:#f2f2f7; --fill:rgba(120,120,128,.12); --fill2:rgba(120,120,128,.2);
  --label:#000; --label2:rgba(60,60,67,.6); --label3:rgba(60,60,67,.3); --sep:rgba(60,60,67,.18);
  --tint:#007aff; --green:#34c759; --red:#ff3b30; --orange:#ff9500; --teal:#037369;
  --bar:rgba(249,249,249,.82); --shadow:0 8px 30px rgba(0,0,0,.08);
  --r:12px; --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --safe-b:env(safe-area-inset-bottom,0px); --safe-t:env(safe-area-inset-top,0px);
}
:root[data-theme="dark"]{
  --bg:#000; --bg2:#1c1c1e; --bg3:#2c2c2e; --fill:rgba(118,118,128,.24); --fill2:rgba(118,118,128,.36);
  --label:#fff; --label2:rgba(235,235,245,.6); --label3:rgba(235,235,245,.3); --sep:rgba(84,84,88,.6);
  --tint:#0a84ff; --green:#30d158; --red:#ff453a; --orange:#ff9f0a;
  --bar:rgba(22,22,24,.8); --shadow:0 8px 30px rgba(0,0,0,.5);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--label);font-family:var(--font);font-size:17px;
  -webkit-font-smoothing:antialiased;overflow:hidden}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
svg.i{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ---------- layout ---------- */
.app{display:grid;grid-template-columns:300px minmax(380px,520px) 1fr;height:100%}
.col{height:100%;overflow:auto;position:relative;-webkit-overflow-scrolling:touch}
.sidebar{background:var(--bg);border-right:.5px solid var(--sep)}
.editor{background:var(--bg);border-right:.5px solid var(--sep)}
.preview{background:var(--bg3)}
:root[data-theme="light"] .preview{background:#e5e5ea}

/* ---------- nav bars ---------- */
.nav{position:sticky;top:0;z-index:20;background:var(--bar);backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);padding:calc(10px + var(--safe-t)) 16px 8px}
.nav.line{border-bottom:.5px solid var(--sep)}
.nav-row{display:flex;align-items:center;justify-content:space-between;min-height:34px;gap:8px}
.nav h1{font-size:32px;font-weight:700;letter-spacing:-.6px;margin:6px 0 4px}
.nav h2{font-size:17px;font-weight:600;margin:0;text-align:center;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav .sub{font-size:13px;color:var(--label2);margin:-2px 0 4px}
.tbtn{color:var(--tint);font-size:17px;display:inline-flex;align-items:center;gap:4px;padding:6px 2px;border-radius:8px;white-space:nowrap}
.tbtn:active{opacity:.4}
.tbtn.b{font-weight:600}
.icon-btn{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:var(--tint);background:var(--fill)}
.icon-btn:active{opacity:.5}

/* ---------- search ---------- */
.search{display:flex;align-items:center;gap:6px;background:var(--fill);border-radius:10px;padding:7px 9px;margin:6px 0 4px;color:var(--label2)}
.search input{border:0;outline:0;background:none;flex:1;font-size:17px;color:var(--label);min-width:0}
.search svg{width:17px;height:17px}

/* ---------- grouped lists ---------- */
.content{padding:4px 16px calc(110px + var(--safe-b))}
.sec-h{font-size:13px;text-transform:uppercase;color:var(--label2);margin:26px 16px 7px;letter-spacing:.2px}
.sec-f{font-size:13px;color:var(--label2);margin:7px 16px 0;line-height:1.35}
.group{background:var(--bg2);border-radius:var(--r);overflow:hidden}
.row{display:flex;align-items:center;gap:12px;min-height:46px;padding:0 16px;position:relative;background:var(--bg2)}
.row+.row::before{content:"";position:absolute;top:0;left:16px;right:0;border-top:.5px solid var(--sep)}
.row.ic+.row::before,.row+.row.ic::before{left:58px}
.row label,.row .lbl{flex:none;width:44%;max-width:190px;font-size:16px;color:var(--label);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row input,.row select,.row textarea{flex:1;min-width:0;border:0;outline:0;background:none;text-align:right;font-size:16px;padding:12px 0;color:var(--label)}
.row input::placeholder{color:var(--label3)}
.row input.auto::placeholder{color:var(--tint);opacity:.75}
.row select{-webkit-appearance:none;appearance:none;text-align-last:right;color:var(--label2);cursor:pointer}
.row .unit{color:var(--label2);font-size:15px;margin-left:-6px}
.row textarea{text-align:left;resize:vertical;min-height:240px;font-family:ui-monospace,Menlo,monospace;font-size:13px;line-height:1.5}
.row.tap{cursor:pointer}
.row.tap:active{background:var(--fill)}
.row .val{margin-left:auto;color:var(--label2);font-size:16px;text-align:right}
.row .chev{color:var(--label3);width:16px;height:16px}
.row .badge{width:30px;height:30px;border-radius:7px;display:grid;place-items:center;color:#fff;flex:none}
.row .badge svg{width:18px;height:18px}
.row.total{font-weight:600}
.row.total .val{color:var(--label);font-weight:700}
.row.danger{color:var(--red);justify-content:center}
.row.action{color:var(--tint);justify-content:center}

/* ---------- segmented / switch / stepper ---------- */
.seg{display:flex;background:var(--fill);border-radius:9px;padding:2px;margin-left:auto;position:relative}
.seg button{flex:1;padding:5px 12px;font-size:14px;font-weight:500;border-radius:7px;color:var(--label);white-space:nowrap}
.seg button.on{background:var(--bg2);box-shadow:0 3px 8px rgba(0,0,0,.12),0 3px 1px rgba(0,0,0,.04)}
:root[data-theme="dark"] .seg button.on{background:#636366}
.switch{margin-left:auto;width:51px;height:31px;border-radius:16px;background:var(--fill2);position:relative;transition:background .25s;flex:none}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:27px;height:27px;border-radius:50%;background:#fff;
  box-shadow:0 3px 8px rgba(0,0,0,.15),0 3px 1px rgba(0,0,0,.06);transition:transform .25s cubic-bezier(.3,.7,.4,1.3)}
.switch.on{background:var(--green)}
.switch.on::after{transform:translateX(20px)}
.stepper{display:flex;align-items:center;margin-left:auto;background:var(--fill);border-radius:9px;overflow:hidden}
.stepper button{width:44px;height:32px;font-size:22px;color:var(--label);display:grid;place-items:center}
.stepper button:active{background:var(--fill2)}
.stepper span{width:1px;height:18px;background:var(--sep)}
.kwin{width:64px!important;flex:none!important;text-align:center!important;font-weight:600;font-size:18px!important}

/* ---------- hero summary card ---------- */
.hero{background:linear-gradient(135deg,#037369,#05907f 60%,#0bb39a);color:#fff;border-radius:18px;padding:18px;margin-top:14px;box-shadow:var(--shadow)}
.hero .k{font-size:13px;opacity:.8}
.hero .big{font-size:34px;font-weight:700;letter-spacing:-.6px;margin:2px 0 12px}
.hero .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.hero .grid div{background:rgba(255,255,255,.14);border-radius:12px;padding:9px 10px}
.hero .grid b{display:block;font-size:16px;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hero .grid span{font-size:11px;opacity:.85}

/* ---------- proposals list ---------- */
.plist .row{min-height:64px;cursor:pointer}
.plist .row.sel{background:var(--tint);color:#fff}
.plist .row.sel .meta,.plist .row.sel .amt{color:rgba(255,255,255,.85)}
.plist .row.sel::before,.plist .row.sel+.row::before{border-color:transparent}
.plist .av{width:40px;height:40px;border-radius:50%;background:linear-gradient(180deg,#a0a7b4,#858c99);color:#fff;display:grid;place-items:center;font-weight:600;font-size:16px;flex:none}
.plist .tx{flex:1;min-width:0;padding:10px 0}
.plist .nm{font-weight:600;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.plist .meta{font-size:13px;color:var(--label2);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.plist .amt{font-size:14px;color:var(--label2);text-align:right;white-space:nowrap}
.empty{text-align:center;color:var(--label2);padding:60px 20px;font-size:15px;line-height:1.5}
.empty svg{width:54px;height:54px;color:var(--label3);margin-bottom:10px}

/* ---------- preview ---------- */
.pv-wrap{padding:18px 0 calc(120px + var(--safe-b));display:flex;flex-direction:column;align-items:center;gap:18px}
#pages .page{box-shadow:0 2px 6px rgba(0,0,0,.08),0 12px 40px rgba(0,0,0,.12);border-radius:3px}
.pv-scale{transform-origin:top left}
.pv-actions{display:flex;gap:8px}
.pill{background:var(--tint);color:#fff;border-radius:980px;padding:8px 16px;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.pill.gray{background:var(--fill);color:var(--tint)}
.pill svg{width:18px;height:18px}
.pill:active{opacity:.6}

/* ---------- floating action bar (editor) ---------- */
.actionbar{position:sticky;bottom:0;z-index:15;padding:10px 16px calc(10px + var(--safe-b));background:var(--bar);
  backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-top:.5px solid var(--sep);display:flex;gap:10px}
.btn{flex:1;height:50px;border-radius:14px;font-size:17px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px}
.btn.primary{background:var(--tint);color:#fff}
.btn.secondary{background:var(--fill);color:var(--tint)}
.btn:active{transform:scale(.98);opacity:.85}
.btn svg{width:20px;height:20px}

/* ---------- tab bar (mobile) ---------- */
.tabbar{display:none}

/* ---------- sheet / toast ---------- */
.toast{position:fixed;left:50%;top:calc(14px + var(--safe-t));transform:translate(-50%,-250%);background:var(--bg2);color:var(--label);
  padding:11px 18px;border-radius:980px;box-shadow:var(--shadow);font-size:15px;font-weight:500;z-index:100;transition:transform .35s cubic-bezier(.3,.7,.4,1.2);display:flex;align-items:center;gap:8px}
.toast.show{transform:translate(-50%,0)}
.toast svg{width:18px;height:18px;color:var(--green)}
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:90;opacity:0;pointer-events:none;transition:opacity .25s}
.scrim.show{opacity:1;pointer-events:auto}
.sheet{position:fixed;left:50%;bottom:0;width:min(560px,100%);max-height:92vh;overflow:auto;background:var(--bg);z-index:95;
  border-radius:14px 14px 0 0;transform:translate(-50%,105%);transition:transform .4s cubic-bezier(.2,.8,.2,1);padding-bottom:calc(20px + var(--safe-b))}
.sheet.show{transform:translate(-50%,0)}
.sheet .grab{width:36px;height:5px;border-radius:3px;background:var(--label3);margin:8px auto 0}
.alert{position:fixed;left:50%;top:50%;width:270px;background:var(--bar);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);
  border-radius:14px;z-index:110;transform:translate(-50%,-50%) scale(1.1);opacity:0;pointer-events:none;transition:all .2s;text-align:center;overflow:hidden}
.alert.show{opacity:1;transform:translate(-50%,-50%) scale(1);pointer-events:auto}
.alert h3{font-size:17px;margin:18px 16px 4px}
.alert p{font-size:13px;margin:0 16px 18px;color:var(--label);line-height:1.35}
.alert .ab{display:flex;border-top:.5px solid var(--sep)}
.alert .ab button{flex:1;height:44px;color:var(--tint);font-size:17px}
.alert .ab button+button{border-left:.5px solid var(--sep)}
.alert .ab .d{color:var(--red);font-weight:600}
.warn{color:var(--orange)!important}

/* ---------- responsive ---------- */
@media (max-width:1180px){ .app{grid-template-columns:270px minmax(360px,460px) 1fr} }
@media (max-width:900px){
  html,body{overflow:hidden}
  .app{display:block;position:relative}
  .col{position:absolute;inset:0;padding-bottom:calc(50px + var(--safe-b));border:0}
  .col.hide{visibility:hidden;pointer-events:none;z-index:-1}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--bar);backdrop-filter:saturate(180%) blur(20px);
    -webkit-backdrop-filter:saturate(180%) blur(20px);border-top:.5px solid var(--sep);padding-bottom:var(--safe-b)}
  .tabbar button{flex:1;height:50px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:10px;font-weight:500;color:var(--label2)}
  .tabbar button.on{color:var(--tint)}
  .tabbar svg{width:25px;height:25px}
  .actionbar{bottom:0}
  .nav h1{font-size:34px}
  .content{padding-bottom:calc(30px + var(--safe-b))}
  .pv-wrap{padding-bottom:30px}
  .seg button{padding:5px 10px;font-size:13px}
  .hide-sm{display:none}
  .pill{padding:8px 12px}
}

/* ---------- brand logos ---------- */
.row .thumb{width:58px;height:30px;object-fit:contain;background:#fff;border-radius:6px;border:.5px solid var(--sep);padding:2px;flex:none;display:grid;place-items:center;font-size:12px;color:#8e8e93;font-weight:600}
.row .thumb.ph{background:var(--fill);border-style:dashed}
.brandrow label{width:auto!important;flex:none}
.brandrow select{min-width:0}
.brandrow.sub label{color:var(--label2)}
.row.ic+.row::before,.brandrow+.row::before,.row+.brandrow::before{left:86px}
.lib .tx{flex:1;min-width:0;padding:8px 0}
.lib .nm{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lib .meta{font-size:12px;color:var(--label2)}
.lib.off{opacity:.45}
.tbtn.sm{font-size:15px;padding:4px 4px}
.tbtn.del{color:var(--red)}
.alert.wide{width:min(340px,92vw)}
.logo-prev{margin:6px 16px 12px;height:96px;border-radius:12px;background:#fff;border:.5px solid var(--sep);display:grid;place-items:center;padding:10px;
  background-image:linear-gradient(45deg,#f2f2f2 25%,transparent 25%,transparent 75%,#f2f2f2 75%),linear-gradient(45deg,#f2f2f2 25%,transparent 25%,transparent 75%,#f2f2f2 75%);
  background-size:14px 14px;background-position:0 0,7px 7px}
.logo-prev img{max-width:100%;max-height:76px;object-fit:contain}
.dlg-fields{display:flex;flex-direction:column;gap:8px;margin:0 16px 14px}
.dlg-fields input,.dlg-fields select{background:var(--bg2);border:.5px solid var(--sep);border-radius:9px;padding:9px 10px;font-size:15px;outline:0;width:100%}
.dlg-fields input.err{border-color:var(--red)}

/* ---------- hide scroll bars (scrolling still works) ---------- */
*{scrollbar-width:none;-ms-overflow-style:none}
*::-webkit-scrollbar{display:none;width:0;height:0}
.autotag{font-size:11px;font-weight:600;color:var(--tint);background:color-mix(in srgb,var(--tint) 14%,transparent);border-radius:6px;padding:2px 6px;margin-left:8px}

/* ---------- company logo ---------- */
.brand{display:flex;align-items:center;gap:9px;margin:8px 0 -2px}
.brand .mark{height:26px;width:auto}
.brand span{font-size:12px;font-weight:700;letter-spacing:1.4px;color:var(--label2)}
.mark-d{display:none}
:root[data-theme="dark"] .mark-l{display:none}
:root[data-theme="dark"] .mark-d{display:inline-block}
.empty-mark{width:150px;height:auto;margin:0 auto 14px;opacity:.9}
.empty .mark-l.empty-mark{display:block}
:root[data-theme="dark"] .empty .mark-l.empty-mark{display:none}
:root[data-theme="dark"] .empty .mark-d.empty-mark{display:block}
.brand .applogo{width:34px;height:34px;border-radius:9px;box-shadow:0 1px 3px rgba(0,0,0,.15)}
.empty .applogo.big{width:92px;height:92px;border-radius:22px;display:block;margin:0 auto 14px;box-shadow:0 6px 20px rgba(0,0,0,.18)}