:root {
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  color: #202020;
  background: #0a609d;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  min-height: 100vh;
  padding: 7vh 5vw 72px;
  background:
    radial-gradient(circle at 76% 30%, rgba(255,255,255,.24), transparent 18%),
    linear-gradient(25deg, rgba(55,143,45,.85) 0 13%, transparent 13.3%),
    linear-gradient(145deg, #1193d4, #075c95 52%, #083d68);
}
.window {
  width: min(1080px, 92vw);
  min-height: 620px;
  margin: 0 auto;
  padding: 7px;
  border: 1px solid rgba(255,255,255,.78);
  border-radius: 8px;
  background: linear-gradient(rgba(210,237,252,.76), rgba(111,176,213,.70));
  box-shadow: 0 18px 52px rgba(0,0,0,.42), inset 0 0 0 1px rgba(20,69,96,.58), inset 0 1px 0 2px rgba(255,255,255,.45);
  backdrop-filter: blur(10px) saturate(120%);
}
.titlebar {
  height: 34px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px 4px 8px;
  color: #0b1c26;
  text-shadow: 0 1px rgba(255,255,255,.9);
}
.titlebar img { width: 22px; height: 22px; }
.window-title { font-size: 13px; font-weight: 600; }
.window-controls { margin-left: auto; display: flex; align-self: flex-start; }
.window-control {
  width: 47px; height: 22px;
  border: 1px solid rgba(36,80,103,.55);
  border-top: 0;
  display: grid; place-items: center;
  font: 13px/1 Arial, sans-serif;
  color: #17232b;
  background: linear-gradient(rgba(255,255,255,.82), rgba(176,212,231,.74));
  text-decoration: none;
}
.window-control + .window-control { border-left: 0; }
.window-control:first-child { border-bottom-left-radius: 4px; }
.window-control.close { border-bottom-right-radius: 4px; color: #fff; text-shadow: 0 1px #64160f; background: linear-gradient(#ee8f80,#c94132 55%,#a82117); }
.window-control:hover { filter: brightness(1.08); }
.content {
  min-height: 565px;
  border: 1px solid #496d80;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.8);
}
.toolbar {
  height: 45px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  border-bottom: 1px solid #b7c6d0;
  background: linear-gradient(#f7fbff,#e5edf3);
}
.back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border: 1px solid #9caab4;
  border-radius: 3px;
  background: linear-gradient(#fff,#e3e9ed);
  color: #26343c;
  text-decoration: none;
  font-size: 12px;
}
.back:hover { border-color: #6a9dba; background: linear-gradient(#fff,#dceef9); }
.address {
  flex: 1;
  height: 27px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  border: 1px solid #a8b3bb;
  background: #fff;
  color: #44525b;
  font-size: 12px;
}
.app-body { padding: 42px 50px; }
.app-head { display: flex; gap: 22px; align-items: center; padding-bottom: 28px; border-bottom: 1px solid #e1e5e8; }
.app-head img { width: 74px; height: 74px; filter: drop-shadow(0 4px 4px rgba(0,0,0,.18)); }
.app-head h1 { margin: 0 0 5px; color: #183c58; font-size: 28px; font-weight: 400; }
.app-head p { margin: 0; color: #68757d; font-size: 14px; }
.placeholder {
  margin-top: 34px;
  padding: 28px;
  border: 1px solid #ccd7de;
  border-radius: 3px;
  background: linear-gradient(#fbfdff,#f2f6f9);
  color: #56656f;
}
.placeholder strong { display: block; margin-bottom: 9px; color: #355970; font-size: 16px; font-weight: 600; }
.placeholder p { margin: 0; line-height: 1.55; }
.taskbar {
  position: fixed; left: 0; right: 0; bottom: 0; height: 48px;
  display: flex; align-items: center; padding: 0 8px;
  border-top: 1px solid rgba(255,255,255,.45);
  background: linear-gradient(rgba(34,80,109,.82), rgba(8,38,59,.93));
  backdrop-filter: blur(12px);
}
.task-home { color: #fff; text-decoration: none; font-size: 12px; text-shadow: 0 1px #000; }
.task-current { margin-left: 12px; height: 38px; min-width: 190px; padding: 0 14px; display: flex; align-items: center; gap: 9px; border: 1px solid rgba(255,255,255,.23); border-radius: 3px; background: linear-gradient(rgba(255,255,255,.15),rgba(255,255,255,.06)); color: #fff; font-size: 12px; box-shadow: inset 0 0 7px rgba(0,0,0,.25); }
.task-current img { width: 23px; height: 23px; }
@media (max-width: 700px) {
  body { padding: 14px 8px 64px; }
  .window { width: 100%; min-height: 0; }
  .content { min-height: calc(100vh - 110px); }
  .app-body { padding: 28px 22px; }
  .app-head { align-items: flex-start; }
  .app-head img { width: 58px; height: 58px; }
  .app-head h1 { font-size: 23px; }
  .address { display: none; }
  .task-current { min-width: 0; flex: 1; }
}