/* ── Header ── */
header {
  flex-shrink: 0;
  height: 76px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.logo {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, hsl(45,100%,71%), hsl(35,100%,60%));
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 10px hsla(35,100%,60%,.4);
}
.logo svg { display: block; }

.header-text { display: flex; flex-direction: column; gap: 0.15rem; }
.header-title { font-size: 1.3rem; font-weight: 800; letter-spacing: -.025em; line-height: 1; }
.header-sub { font-size: 0.76rem; color: var(--text3); font-weight: 500; letter-spacing: .07em; text-transform: uppercase; }
.header-spacer { flex: 1; }

.theme-btn {
  width: 40px; height: 40px;
  border-radius: 9px;
  border: 1px solid var(--border-hi);
  background: var(--surface2);
  color: var(--text2);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s, border-color .15s;
}
.theme-btn:hover { background: var(--surface3); color: var(--text); border-color: var(--accent); }
.theme-btn svg { width: 18px; height: 18px; }

.lang-switcher { position: relative; }

.lang-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 0.75rem;
  border-radius: 9px;
  border: 1px solid var(--border-hi);
  background: var(--surface2);
  color: var(--text2);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: .04em;
  white-space: nowrap;
  transition: background .15s, color .15s, border-color .15s;
}
.lang-toggle-btn:hover { background: var(--surface3); color: var(--text); border-color: var(--accent); }

.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 5px);
  right: 0;
  background: var(--surface2);
  border: 1px solid var(--border-hi);
  border-radius: 9px;
  overflow: hidden;
  z-index: 9999;
  min-width: 72px;
  box-shadow: 0 6px 20px hsla(0,0%,0%,.25);
}

.lang-opt {
  display: block;
  width: 100%;
  padding: 8px 14px;
  background: none;
  border: none;
  color: var(--text2);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: .04em;
  text-align: left;
  cursor: pointer;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.lang-opt:hover { background: var(--surface3); color: var(--text); }
.lang-opt.active { color: var(--accent); font-weight: 700; }