:root{font-family:Segoe UI,Trebuchet MS,sans-serif;color:#f5f8ff;background:#071322;font-synthesis:none}*{box-sizing:border-box}html,body,#root{margin:0;min-width:320px;min-height:100%}button{font:inherit}body{min-height:100vh;background:linear-gradient(rgba(148,163,184,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.035) 1px,transparent 1px),radial-gradient(circle at 20% 0%,rgba(45,212,191,.12),transparent 34rem),#071322;background-size:64px 64px,64px 64px,auto,auto}.app-shell{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;padding:28px}.ad-banner{width:min(100%,970px);min-height:90px;display:flex;align-items:center;justify-content:center}.ad-banner .adsbygoogle{width:100%}.app-stage{width:min(100%,510px);display:grid}.calculator{width:100%;display:grid;gap:10px}.app-header{display:flex;align-items:end;justify-content:space-between;gap:20px;padding:0 4px 8px}.app-header h1{margin:0;font-size:28px;line-height:1;letter-spacing:0;text-transform:uppercase}.eyebrow{margin:0 0 7px;color:#5eead4;font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.word-size{color:#92b7e5;font-size:13px;text-transform:uppercase}.display-card{min-height:132px;display:flex;flex-direction:column;justify-content:space-between;padding:20px;border:1px solid #d5dfef;border-radius:28px;background:#f5f8ff;color:#0a1b33}.display-head{display:flex;justify-content:space-between;gap:16px;color:#5877a0;font-size:14px;font-weight:750;white-space:pre-line}.display-value{align-self:stretch;overflow-wrap:anywhere;color:#0a1b33;font-size:clamp(34px,8vw,48px);font-weight:850;line-height:1;text-align:right;white-space:pre-line}.display-value.binary{font-size:clamp(17px,4vw,25px);line-height:1.15}.summary-card{display:grid;gap:7px;padding:17px 20px;border:1px solid #1c3d62;border-radius:22px;background:#12263d}.summary-row{display:grid;grid-template-columns:54px minmax(0,1fr);align-items:center}.summary-row>span{color:#84a8d5;font-size:14px;font-weight:800}.summary-row output{overflow-wrap:anywhere;color:#eaf3ff;font-family:Consolas,Courier New,monospace;font-size:15px;font-weight:700;text-align:right;white-space:pre-line}.summary-row output.binary{font-size:12px}.base-tabs,.operator-row{display:grid;gap:10px}.base-tabs{grid-template-columns:repeat(4,1fr)}.operator-row{grid-template-columns:repeat(5,1fr)}.base-tabs button,.operator-row button,.keypad button{min-width:0;border:1px solid #35557d;border-radius:14px;color:#d6e7ff;background:#1a2d48;font-weight:800;cursor:pointer;transition:background .13s ease,border-color .13s ease,transform .13s ease}.base-tabs button,.operator-row button{min-height:54px;font-size:18px}.operator-row button{background:#263a57}.base-tabs button.active,.operator-row button.equals{border-color:#f9b35f;color:#171717;background:#f08c1a}.operator-row button.active{border-color:#6f9cd2;background:#3b567a;color:#fff}.keypad{min-height:390px;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(5,minmax(64px,1fr));gap:10px}.keypad button{border-color:#b1bccb;border-radius:16px;color:#0f1828;background:#d4d9e2;font-size:22px}.keypad button.clear{border-color:#fbc96a;background:#f2ae2d}.keypad button.zero{grid-column:1 / -1}.keypad button:disabled{border-color:#385270;color:#69839f;background:#2c3e56;cursor:not-allowed}.base-tabs button:hover:not(:disabled),.operator-row button:hover:not(:disabled),.keypad button:hover:not(:disabled){transform:translateY(-1px);border-color:#8cb8e9}button:focus-visible{outline:3px solid #5eead4;outline-offset:2px}@media(min-width:1025px){.app-stage{width:min(100%,1230px);grid-template-columns:minmax(160px,1fr) minmax(0,510px) minmax(160px,1fr);gap:20px;align-items:start}.ad-banner-left,.ad-banner-right{width:100%;min-height:600px}}@media(max-width:580px){body{background:#0b1526}.app-shell{min-height:100dvh;gap:14px;padding:max(16px,env(safe-area-inset-top)) 14px max(16px,env(safe-area-inset-bottom))}.ad-banner{min-height:50px}.calculator{min-height:calc(100dvh - 32px);grid-template-rows:auto auto auto auto auto minmax(350px,1fr)}.app-header h1{font-size:22px}.word-size{font-size:11px}.display-card{min-height:116px;border-radius:22px;padding:16px}.summary-card{padding:13px 16px}.base-tabs,.operator-row,.keypad{gap:8px}.base-tabs button,.operator-row button{min-height:48px;font-size:16px}.keypad{min-height:350px;gap:8px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
