/* ── 헤더 컨테이너 ── */
header {
  height: 20vh;
  min-height: 80px;
  max-height: 110px;
  width: 100%;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  gap: 20px;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* ── 로고 ── */
.logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.8rem;
  color: var(--accent);
  letter-spacing: -0.5px;
  user-select: none;
}

.logo span {
  color: var(--accent2);
}

/* ── 월 이동 네비게이션 ── */
.month-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.month-nav button {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  width: 34px;
  height: 34px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.month-nav button:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.current-month {
  font-size: 1.3rem;
  font-weight: 700;
  min-width: 160px;
  text-align: center;
  color: var(--text);
  letter-spacing: -0.3px;
}

/* ── 오늘 버튼 ── */
.today-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 6px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-family: 'Noto Sans KR', sans-serif;
  transition: all 0.15s;
}

.today-btn:hover {
  background: var(--hover);
  color: var(--text);
}

/* ── 일정 추가 버튼 ── */
.add-btn {
  background: var(--accent);
  border: none;
  color: #fff;
  padding: 10px 22px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.9rem;
  font-family: 'Noto Sans KR', sans-serif;
  font-weight: 500;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 15px rgba(124, 106, 247, 0.35);
}

.add-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(124, 106, 247, 0.5);
}

.add-btn svg {
  width: 16px;
  height: 16px;
}