/* ============================================================
   Ubuntu 26.04 — boot, login, lock, suspend, power flows
   ============================================================ */

.screen { position: fixed; inset: 0; z-index: 10000; display: none; }
.screen.on { display: flex; }

/* ---------- boot ---------- */
#bootScreen {
  background: #000;
  flex-direction: column; align-items: center; justify-content: center; gap: 36px;
}
#bootScreen .boot-logo { width: 108px; height: 108px; }
#bootScreen .boot-logo img { width: 100%; height: 100%; }
#bootScreen .boot-spinner {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,.12);
  border-top-color: #E95420;
  animation: spin .9s linear infinite;
}
#bootScreen .boot-progress { width: 260px; height: 3px; background: rgba(255,255,255,.12); border-radius: 2px; overflow: hidden; }
#bootScreen .boot-progress i { display: block; height: 100%; background: #E95420; border-radius: 2px; width: 0%; transition: width .15s linear; }
#bootScreen .boot-brand { color: rgba(255,255,255,.55); font-size: var(--fs-m); letter-spacing: .04em; }
#bootScreen .boot-version { color: rgba(255,255,255,.35); font-size: var(--fs-xs); }

/* ---------- login ---------- */
#loginScreen {
  background-size: cover; background-position: center;
  background-color: #141414;
  flex-direction: column;
}
#loginScreen::before {
  content: ""; position: absolute; inset: 0;
  background: rgba(10, 10, 12, 0.62);
}
#loginScreen > * { position: relative; }
#loginScreen .login-clock { position: absolute; top: 9vh; width: 100%; text-align: center; color: #fff; }
#loginScreen .login-time { font-size: 76px; font-weight: 300; letter-spacing: .01em; text-shadow: 0 2px 12px rgba(0,0,0,.4); }
#loginScreen .login-date { font-size: var(--fs-xl); margin-top: 2px; opacity: .85; font-weight: 300; }
#loginScreen .login-user { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: flex; flex-direction: column; align-items: center; gap: 14px; }
#loginScreen .login-avatar {
  width: 116px; height: 116px; border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.14);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(0,0,0,.35);
  cursor: pointer;
  transition: transform var(--speed-normal) var(--ease-spring), box-shadow var(--speed-normal);
}
#loginScreen .login-avatar:hover { transform: scale(1.04); }
#loginScreen .login-avatar svg { width: 64px; height: 64px; color: #fff; }
#loginScreen .login-name { color: #fff; font-size: var(--fs-xl); font-weight: 400; text-shadow: 0 2px 8px rgba(0,0,0,.5); }
#loginScreen .login-name .login-host { color: rgba(255,255,255,.6); font-size: var(--fs-s); display: block; text-align: center; margin-top: 2px; }
#loginScreen .login-form { display: flex; flex-direction: column; align-items: center; gap: 12px; }
#loginScreen .login-password {
  width: 240px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 999px;
  padding: 10px 18px;
  color: #fff; font-size: var(--fs-m);
  text-align: center;
  outline: none;
  transition: background var(--speed-normal);
}
#loginScreen .login-password::placeholder { color: rgba(255,255,255,.5); }
#loginScreen .login-password:focus { background: rgba(255,255,255,.2); }
#loginScreen .login-btn {
  background: var(--accent); color: var(--accent-fg);
  border: none; border-radius: 999px;
  padding: 8px 28px; font-size: var(--fs-s); font-weight: 500;
  cursor: default;
}
#loginScreen .login-btn:hover { background: var(--accent-hover); }
#loginScreen .login-hint { color: rgba(255,255,255,.45); font-size: var(--fs-xs); }
#loginScreen .login-a11y {
  position: absolute; right: 24px; bottom: 24px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  color: #fff; display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}
#loginScreen .login-a11y:hover { background: rgba(255,255,255,.2); }
#loginScreen .login-a11y svg { width: 22px; height: 22px; }
#loginScreen .login-session {
  position: absolute; right: 24px; bottom: 84px;
  color: rgba(255,255,255,.6); font-size: var(--fs-xs);
  display: flex; align-items: center; gap: 8px;
}
#loginScreen .login-session .gear { cursor: pointer; }
#loginScreen .login-session .gear:hover { color: #fff; }
#loginScreen .login-session svg { width: 16px; height: 16px; }

/* ---------- lock ---------- */
#lockScreen {
  background-size: cover; background-position: center;
  background-color: #101012;
  flex-direction: column; align-items: center;
  justify-content: center;
}
#lockScreen::before { content: ""; position: absolute; inset: 0; background: rgba(8, 8, 10, 0.5); backdrop-filter: blur(2px); }
#lockScreen > * { position: relative; }
#lockScreen .lock-clock { color: #fff; text-align: center; }
#lockScreen .lock-time { font-size: 96px; font-weight: 300; text-shadow: 0 3px 18px rgba(0,0,0,.45); }
#lockScreen .lock-date { font-size: var(--fs-xl); font-weight: 300; opacity: .85; margin-top: 4px; }
#lockScreen .lock-hint { color: rgba(255,255,255,.4); font-size: var(--fs-xs); margin-top: 16px; }
#lockScreen .lock-user { position: absolute; bottom: 12vh; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 10px; }
#lockScreen .lock-avatar {
  width: 88px; height: 88px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.14);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}
#lockScreen .lock-avatar svg { width: 48px; height: 48px; color: #fff; }
#lockScreen .lock-name { color: #fff; font-size: var(--fs-m); text-shadow: 0 2px 8px rgba(0,0,0,.5); }
#lockScreen .lock-password {
  width: 240px;
  background: rgba(255,255,255,.12);
  border: none; border-radius: 999px;
  padding: 10px 18px;
  color: #fff; text-align: center;
  outline: none;
}
#lockScreen .lock-password:focus { background: rgba(255,255,255,.2); }
#lockScreen .lock-note { position: absolute; top: 14vh; width: 100%; text-align: center; color: rgba(255,255,255,.55); font-size: var(--fs-s); }
#lockScreen .lock-note .ni-app { display: inline-flex; align-items: center; gap: 8px; }

/* ---------- suspend ---------- */
#suspendScreen { background: #000; align-items: center; justify-content: center; flex-direction: column; gap: 12px; }
#suspendScreen .suspend-ind { color: rgba(255,255,255,.35); width: 48px; height: 48px; }
#suspendScreen .suspend-ind svg { width: 48px; height: 48px; }
#suspendScreen .suspend-hint { color: rgba(255,255,255,.3); font-size: var(--fs-s); }

/* ---------- shutdown ---------- */
#shutdownScreen {
  background: #000;
  flex-direction: column; align-items: center; justify-content: center; gap: 24px;
}
#shutdownScreen .sd-msg { color: rgba(255,255,255,.4); font-size: var(--fs-s); }
#shutdownScreen .sd-power-btn {
  width: 64px; height: 64px; border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.05);
  color: rgba(255,255,255,.8);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  animation: sd-pulse 2.4s ease-in-out infinite;
}
#shutdownScreen .sd-power-btn:hover { background: rgba(255,255,255,.14); }
#shutdownScreen .sd-power-btn svg { width: 28px; height: 28px; }
#shutdownScreen .sd-off { color: rgba(255,255,255,.6); font-size: var(--fs-m); }
@keyframes sd-pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(255,255,255,.15); } 50% { box-shadow: 0 0 0 14px transparent; } }

/* ---------- logout confirm overlay ---------- */
.end-session {
  position: fixed; inset: 0; z-index: 9550;
  background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center;
  animation: fade-in var(--speed-normal);
}
.end-session .es-box {
  background: var(--dialog-bg); color: var(--dialog-fg);
  border-radius: var(--radius-modal);
  padding: var(--pad-xxl);
  min-width: 380px;
  box-shadow: var(--shadow-3);
  animation: modal-in var(--speed-normal) var(--ease-spring);
}
.end-session .es-title { font-size: var(--fs-l); font-weight: 550; margin-bottom: 8px; }
.end-session .es-desc { color: var(--fg-dim); font-size: var(--fs-m); margin-bottom: 4px; }
.end-session .es-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.end-session .es-countdown { color: var(--fg-faint); font-size: var(--fs-s); display: flex; align-items: center; gap: 10px; margin-top: 14px; }